diff options
Diffstat (limited to 'src/gui/kernel')
26 files changed, 3638 insertions, 32 deletions
diff --git a/src/gui/kernel/kernel.pri b/src/gui/kernel/kernel.pri index a1b982a..3016afb 100644 --- a/src/gui/kernel/kernel.pri +++ b/src/gui/kernel/kernel.pri @@ -41,7 +41,15 @@ HEADERS += \ kernel/qwidgetaction.h \ kernel/qwidgetaction_p.h \ kernel/qwindowdefs.h \ - kernel/qkeymapper_p.h + kernel/qkeymapper_p.h \ + kernel/qgesture.h \ + kernel/qgesture_p.h \ + kernel/qgesturemanager_p.h \ + kernel/qgesturerecognizer_p.h \ + kernel/qgesturerecognizer.h \ + kernel/qgesturestandardrecognizers_p.h \ + kernel/qdirectionrecognizer_p.h \ + kernel/qdirectionsimplificator_p.h SOURCES += \ kernel/qaction.cpp \ @@ -70,7 +78,12 @@ SOURCES += \ kernel/qwhatsthis.cpp \ kernel/qwidget.cpp \ kernel/qwidgetaction.cpp \ - kernel/qkeymapper.cpp + kernel/qkeymapper.cpp \ + kernel/qgesture.cpp \ + kernel/qgesturemanager.cpp \ + kernel/qgesturerecognizer.cpp \ + kernel/qgesturestandardrecognizers.cpp \ + kernel/qdirectionrecognizer.cpp win32 { DEFINES += QT_NO_DIRECTDRAW diff --git a/src/gui/kernel/qapplication.cpp b/src/gui/kernel/qapplication.cpp index 824d6f1..b142f2e 100644 --- a/src/gui/kernel/qapplication.cpp +++ b/src/gui/kernel/qapplication.cpp @@ -85,10 +85,13 @@ #include <stdlib.h> #include "qapplication_p.h" +#include "qevent_p.h" #include "qwidget_p.h" #include "qapplication.h" +#include <private/qgesturemanager_p.h> + #ifdef Q_WS_WINCE #include "qdatetime.h" #include "qguifunctions_wince.h" @@ -97,6 +100,8 @@ extern bool qt_wince_is_mobile(); //qguifunctions_wince.cpp extern bool qt_wince_is_pocket_pc(); //qguifunctions_wince.cpp #endif +#include "qdatetime.h" + //#define ALIEN_DEBUG static void initResources() @@ -132,6 +137,14 @@ int QApplicationPrivate::autoMaximizeThreshold = -1; bool QApplicationPrivate::autoSipEnabled = false; #endif +QGestureManager* QGestureManager::instance() +{ + QApplicationPrivate *d = qApp->d_func(); + if (!d->gestureManager) + d->gestureManager = new QGestureManager(qApp); + return d->gestureManager; +} + QApplicationPrivate::QApplicationPrivate(int &argc, char **argv, QApplication::Type type) : QCoreApplicationPrivate(argc, argv) { @@ -155,6 +168,8 @@ QApplicationPrivate::QApplicationPrivate(int &argc, char **argv, QApplication::T directPainters = 0; #endif + gestureManager = 0; + if (!self) self = this; } @@ -2859,7 +2874,8 @@ QWidget *QApplicationPrivate::pickMouseReceiver(QWidget *candidate, const QPoint */ bool QApplicationPrivate::sendMouseEvent(QWidget *receiver, QMouseEvent *event, QWidget *alienWidget, QWidget *nativeWidget, - QWidget **buttonDown, QPointer<QWidget> &lastMouseReceiver) + QWidget **buttonDown, QPointer<QWidget> &lastMouseReceiver, + bool spontaneous) { Q_ASSERT(receiver); Q_ASSERT(event); @@ -2912,7 +2928,11 @@ bool QApplicationPrivate::sendMouseEvent(QWidget *receiver, QMouseEvent *event, // We need this quard in case someone opens a modal dialog / popup. If that's the case // leaveAfterRelease is set to null, but we shall not update lastMouseReceiver. const bool wasLeaveAfterRelease = leaveAfterRelease != 0; - bool result = QApplication::sendSpontaneousEvent(receiver, event); + bool result; + if (spontaneous) + result = QApplication::sendSpontaneousEvent(receiver, event); + else + result = QApplication::sendEvent(receiver, event); if (!graphicsWidget && leaveAfterRelease && event->type() == QEvent::MouseButtonRelease && !event->buttons() && QWidget::mouseGrabber() != leaveAfterRelease) { @@ -3571,6 +3591,18 @@ bool QApplication::notify(QObject *receiver, QEvent *e) #endif // !QT_NO_WHEELEVENT || !QT_NO_TABLETEVENT } + if (!d->grabbedGestures.isEmpty() && e->spontaneous() && receiver->isWidgetType()) { + const QEvent::Type t = e->type(); + if (t == QEvent::MouseButtonPress || t == QEvent::MouseButtonRelease || t == QEvent::MouseMove + || t == QEvent::MouseButtonDblClick || t == QEvent::Wheel + || t == QEvent::KeyPress || t == QEvent::KeyRelease + || t == QEvent::TabletPress || t == QEvent::TabletRelease || t == QEvent::TabletMove + || t >= QEvent::User) { + if (QGestureManager::instance()->filterEvent(static_cast<QWidget*>(receiver), e)) + return true; + } + } + // User input and window activation makes tooltips sleep switch (e->type()) { case QEvent::Wheel: @@ -3698,19 +3730,10 @@ bool QApplication::notify(QObject *receiver, QEvent *e) QPoint relpos = mouse->pos(); if (e->spontaneous()) { - if (e->type() == QEvent::MouseButtonPress) { - QWidget *fw = w; - while (fw) { - if (fw->isEnabled() - && QApplicationPrivate::shouldSetFocus(fw, Qt::ClickFocus)) { - fw->setFocus(Qt::MouseFocusReason); - break; - } - if (fw->isWindow()) - break; - fw = fw->parentWidget(); - } + QApplicationPrivate::giveFocusAccordingToFocusPolicy(w, + Qt::ClickFocus, + Qt::MouseFocusReason); } if (e->type() == QEvent::MouseMove && mouse->buttons() == 0) { @@ -3792,17 +3815,9 @@ bool QApplication::notify(QObject *receiver, QEvent *e) bool eventAccepted = wheel->isAccepted(); if (e->spontaneous()) { - QWidget *fw = w; - while (fw) { - if (fw->isEnabled() - && QApplicationPrivate::shouldSetFocus(fw, Qt::WheelFocus)) { - fw->setFocus(Qt::MouseFocusReason); - break; - } - if (fw->isWindow()) - break; - fw = fw->parentWidget(); - } + QApplicationPrivate::giveFocusAccordingToFocusPolicy(w, + Qt::WheelFocus, + Qt::MouseFocusReason); } while (w) { @@ -4007,7 +4022,48 @@ bool QApplication::notify(QObject *receiver, QEvent *e) } break; #endif + case QEvent::TouchBegin: + // Note: TouchUpdate and TouchEnd events are sent to d->currentMultitouchWidget and never propagated + { + QWidget *widget = static_cast<QWidget *>(receiver); + QWidget *origin = widget; + QTouchEvent *touchEvent = static_cast<QTouchEvent *>(e); + bool eventAccepted = touchEvent->isAccepted(); + if (widget->testAttribute(Qt::WA_AcceptTouchEvents) && e->spontaneous()) { + // give the widget focus if the focus policy allows it + QApplicationPrivate::giveFocusAccordingToFocusPolicy(widget, + Qt::ClickFocus, + Qt::MouseFocusReason); + } + while (widget) { + // first, try to deliver the touch event + touchEvent->ignore(); + res = widget->testAttribute(Qt::WA_AcceptTouchEvents) + && d->notify_helper(widget, touchEvent); + eventAccepted = touchEvent->isAccepted(); + widget->setAttribute(Qt::WA_AcceptedTouchBeginEvent, res && eventAccepted); + touchEvent->spont = false; + if (res && eventAccepted) { + // the first widget to accept the TouchBegin gets an implicit grab. + for (int i = 0; i < touchEvent->_touchPoints.count(); ++i) { + QTouchEvent::TouchPoint *touchPoint = touchEvent->_touchPoints.at(i); + d->widgetForTouchPointId[touchPoint->d->id] = widget; + } + if (origin != widget) + d->widgetCurrentTouchPoints.remove(origin); + d->widgetCurrentTouchPoints[widget] = touchEvent->_touchPoints; + break; + } else if (widget->isWindow() || widget->testAttribute(Qt::WA_NoMousePropagation)) { + break; + } + widget = widget->parentWidget(); + d->updateTouchPointsForWidget(widget, touchEvent); + } + + touchEvent->setAccepted(eventAccepted); + break; + } default: res = d->notify_helper(receiver, e); break; @@ -4974,6 +5030,23 @@ Qt::LayoutDirection QApplication::keyboardInputDirection() return qt_keymapper_private()->keyboardInputDirection; } +void QApplicationPrivate::giveFocusAccordingToFocusPolicy(QWidget *widget, + Qt::FocusPolicy focusPolicy, + Qt::FocusReason focusReason) +{ + QWidget *focusWidget = widget; + while (focusWidget) { + if (focusWidget->isEnabled() + && QApplicationPrivate::shouldSetFocus(focusWidget, focusPolicy)) { + focusWidget->setFocus(focusReason); + break; + } + if (focusWidget->isWindow()) + break; + focusWidget = focusWidget->parentWidget(); + } +} + bool QApplicationPrivate::shouldSetFocus(QWidget *w, Qt::FocusPolicy policy) { QWidget *f = w; @@ -4987,6 +5060,57 @@ bool QApplicationPrivate::shouldSetFocus(QWidget *w, Qt::FocusPolicy policy) return true; } +/*! + \since 4.6 + + Adds custom gesture \a recognizer object. + + Qt takes ownership of the provided \a recognizer. + + \sa Qt::AA_EnableGestures, QGestureEvent +*/ +void QApplication::addGestureRecognizer(QGestureRecognizer *recognizer) +{ + QGestureManager::instance()->addRecognizer(recognizer); +} + +/*! + \since 4.6 + + Removes custom gesture \a recognizer object. + + \sa Qt::AA_EnableGestures, QGestureEvent +*/ +void QApplication::removeGestureRecognizer(QGestureRecognizer *recognizer) +{ + Q_D(QApplication); + if (!d->gestureManager) + return; + d->gestureManager->removeRecognizer(recognizer); +} + +/*! + \property QApplication::eventDeliveryDelayForGestures + \since 4.6 + + Specifies the \a delay before input events are delivered to the + gesture enabled widgets. + + The delay allows to postpone widget's input event handling until + gestures framework can successfully recognize a gesture. + + \sa QWidget::grabGesture +*/ +void QApplication::setEventDeliveryDelayForGestures(int delay) +{ + QGestureManager::instance()->setEventDeliveryDelay(delay); +} + +int QApplication::eventDeliveryDelayForGestures() +{ + return QGestureManager::instance()->eventDeliveryDelay(); +} + /*! \fn QDecoration &QApplication::qwsDecoration() Return the QWSDecoration used for decorating windows. @@ -5118,6 +5242,19 @@ bool QApplicationPrivate::shouldSetFocus(QWidget *w, Qt::FocusPolicy policy) This normally takes some time. Does nothing on other platforms. */ +void QApplicationPrivate::updateTouchPointsForWidget(QWidget *widget, QTouchEvent *touchEvent) +{ + for (int i = 0; i < touchEvent->_touchPoints.count(); ++i) { + QTouchEvent::TouchPoint *touchPoint = touchEvent->_touchPoints.at(i); + + // preserve the sub-pixel resolution + const QPointF delta = touchPoint->d->screenPos - touchPoint->d->screenPos.toPoint(); + touchPoint->d->pos = widget->mapFromGlobal(touchPoint->d->screenPos.toPoint()) + delta; + touchPoint->d->startPos = widget->mapFromGlobal(touchPoint->d->startScreenPos.toPoint()) + delta; + touchPoint->d->lastPos = widget->mapFromGlobal(touchPoint->d->lastScreenPos.toPoint()) + delta; + } +} + QT_END_NAMESPACE #include "moc_qapplication.cpp" diff --git a/src/gui/kernel/qapplication.h b/src/gui/kernel/qapplication.h index 2baf6dc..e09ea08 100644 --- a/src/gui/kernel/qapplication.h +++ b/src/gui/kernel/qapplication.h @@ -71,6 +71,7 @@ class QStyle; class QEventLoop; class QIcon; class QInputContext; +class QGestureRecognizer; template <typename T> class QList; class QLocale; #if defined(Q_WS_QWS) @@ -106,6 +107,7 @@ class Q_GUI_EXPORT QApplication : public QCoreApplication Q_PROPERTY(int autoMaximizeThreshold READ autoMaximizeThreshold WRITE setAutoMaximizeThreshold) Q_PROPERTY(bool autoSipEnabled READ autoSipEnabled WRITE setAutoSipEnabled) #endif + Q_PROPERTY(int eventDeliveryDelayForGestures READ eventDeliveryDelayForGestures WRITE setEventDeliveryDelayForGestures) public: enum Type { Tty, GuiClient, GuiServer }; @@ -266,6 +268,12 @@ public: static bool keypadNavigationEnabled(); #endif + void addGestureRecognizer(QGestureRecognizer *recognizer); + void removeGestureRecognizer(QGestureRecognizer *recognizer); + + void setEventDeliveryDelayForGestures(int delay); + int eventDeliveryDelayForGestures(); + Q_SIGNALS: void lastWindowClosed(); void focusChanged(QWidget *old, QWidget *now); @@ -374,6 +382,7 @@ private: friend class QDirectPainter; friend class QDirectPainterPrivate; #endif + friend class QGestureManager; #if defined(Q_WS_WIN) friend QApplicationPrivate* getQApplicationPrivateInternal(); diff --git a/src/gui/kernel/qapplication_p.h b/src/gui/kernel/qapplication_p.h index 7e97418..08020fb 100644 --- a/src/gui/kernel/qapplication_p.h +++ b/src/gui/kernel/qapplication_p.h @@ -55,6 +55,7 @@ // #include "QtGui/qapplication.h" +#include "QtGui/qevent.h" #include "QtGui/qfont.h" #include "QtGui/qcursor.h" #include "QtGui/qregion.h" @@ -77,11 +78,9 @@ class QClipboard; class QGraphicsScene; class QGraphicsSystem; class QInputContext; -class QKeyEvent; -class QMouseEvent; class QObject; -class QWheelEvent; class QWidget; +class QGestureManager; extern bool qt_is_gui_used; #ifndef QT_NO_CLIPBOARD @@ -189,6 +188,12 @@ extern "C" { } #endif +#if defined(Q_WS_WIN) +typedef BOOL (WINAPI *qt_RegisterTouchWindowPtr)(HWND, ULONG); +typedef BOOL (WINAPI *qt_GetTouchInputInfoPtr)(HANDLE, UINT, PVOID, int); +typedef BOOL (WINAPI *qt_CloseTouchInputHandlePtr)(HANDLE); +#endif + class QScopedLoopLevelCounter { QThreadData *threadData; @@ -419,17 +424,49 @@ public: QEvent::Type type, Qt::MouseButtons buttons, QWidget *buttonDown, QWidget *alienWidget); static bool sendMouseEvent(QWidget *receiver, QMouseEvent *event, QWidget *alienWidget, - QWidget *native, QWidget **buttonDown, QPointer<QWidget> &lastMouseReceiver); + QWidget *native, QWidget **buttonDown, QPointer<QWidget> &lastMouseReceiver, + bool spontaneous = true); #if defined(Q_WS_WIN) || defined(Q_WS_X11) void sendSyntheticEnterLeave(QWidget *widget); #endif + QGestureManager *gestureManager; + // map<gesture name -> number of widget subscribed to it> + QMap<QString, int> grabbedGestures; + + QHash<int, QWidget *> widgetForTouchPointId; + QMap<QWidget *, QList<QTouchEvent::TouchPoint *> > widgetCurrentTouchPoints; + static void updateTouchPointsForWidget(QWidget *widget, QTouchEvent *touchEvent); + +#if defined(Q_WS_WIN) + static qt_RegisterTouchWindowPtr RegisterTouchWindow; + static qt_GetTouchInputInfoPtr GetTouchInputInfo; + static qt_CloseTouchInputHandlePtr CloseTouchInputHandle; + + QHash<DWORD, int> touchInputIDToTouchPointID; + QVector<QTouchEvent::TouchPoint *> appAllTouchPoints; + QList<QTouchEvent::TouchPoint *> appCurrentTouchPoints; + + void initializeMultitouch(); + static QTouchEvent::TouchPoint *findClosestTouchPoint(const QList<QTouchEvent::TouchPoint *> &activeTouchPoints, + const QPointF &screenPos); + QEvent::Type appendTouchPoint(QTouchEvent::TouchPoint *touchPoint, + QList<QTouchEvent::TouchPoint *> *currentTouchPoints); + QEvent::Type removeTouchPoint(QTouchEvent::TouchPoint *touchPoint, + QList<QTouchEvent::TouchPoint *> *currentTouchPoints); + bool translateTouchEvent(const MSG &msg); +#endif + private: #ifdef Q_WS_QWS QMap<const QScreen*, QRect> maxWindowRects; #endif static QApplicationPrivate *self; + + static void giveFocusAccordingToFocusPolicy(QWidget *w, + Qt::FocusPolicy focusPolicy, + Qt::FocusReason focusReason); static bool shouldSetFocus(QWidget *w, Qt::FocusPolicy policy); }; diff --git a/src/gui/kernel/qapplication_win.cpp b/src/gui/kernel/qapplication_win.cpp index 6237657..f537805 100644 --- a/src/gui/kernel/qapplication_win.cpp +++ b/src/gui/kernel/qapplication_win.cpp @@ -88,6 +88,7 @@ extern void qt_wince_hide_taskbar(HWND hwnd); //defined in qguifunctions_wince.c #include "qdebug.h" #include <private/qkeymapper_p.h> #include <private/qlocale_p.h> +#include "qevent_p.h" //#define ALIEN_DEBUG @@ -112,6 +113,39 @@ extern void qt_wince_hide_taskbar(HWND hwnd); //defined in qguifunctions_wince.c # include <winable.h> #endif +#ifndef WM_TOUCHMOVE + +# define WM_TOUCHMOVE 0x0240 +# define WM_TOUCHDOWN 0x0241 +# define WM_TOUCHUP 0x0242 + +# define TOUCHEVENTF_MOVE 0x0001 +# define TOUCHEVENTF_DOWN 0x0002 +# define TOUCHEVENTF_UP 0x0004 +# define TOUCHEVENTF_INRANGE 0x0008 +# define TOUCHEVENTF_PRIMARY 0x0010 +# define TOUCHEVENTF_NOCOALESCE 0x0020 +# define TOUCHEVENTF_PEN 0x0040 + +# define TOUCHINPUTMASKF_TIMEFROMSYSTEM 0x0001 +# define TOUCHINPUTMASKF_EXTRAINFO 0x0002 +# define TOUCHINPUTMASKF_CONTACTAREA 0x0004 + +typedef struct tagTOUCHINPUT +{ + LONG x; + LONG y; + HANDLE hSource; + DWORD dwID; + DWORD dwFlags; + DWORD dwMask; + DWORD dwTime; + ULONG_PTR dwExtraInfo; + DWORD cxContact; + DWORD cyContact; +} TOUCHINPUT, *PTOUCHINPUT; + +#endif #ifndef FLASHW_STOP typedef struct { @@ -853,6 +887,8 @@ void qt_init(QApplicationPrivate *priv, int) if (ptrUpdateLayeredWindow && !ptrUpdateLayeredWindowIndirect) ptrUpdateLayeredWindowIndirect = qt_updateLayeredWindowIndirect; #endif + + priv->initializeMultitouch(); } /***************************************************************************** @@ -1716,6 +1752,11 @@ LRESULT CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam result = widget->translateWheelEvent(msg); } else { switch (message) { + case WM_TOUCHMOVE: + case WM_TOUCHDOWN: + case WM_TOUCHUP: + result = getQApplicationPrivateInternal()->translateTouchEvent(msg); + break; case WM_KEYDOWN: // keyboard event case WM_SYSKEYDOWN: qt_keymapper_private()->updateKeyMap(msg); @@ -3956,4 +3997,234 @@ void QSessionManager::cancel() #endif //QT_NO_SESSIONMANAGER +qt_RegisterTouchWindowPtr QApplicationPrivate::RegisterTouchWindow = 0; +qt_GetTouchInputInfoPtr QApplicationPrivate::GetTouchInputInfo = 0; +qt_CloseTouchInputHandlePtr QApplicationPrivate::CloseTouchInputHandle = 0; + +void QApplicationPrivate::initializeMultitouch() +{ + QLibrary library(QLatin1String("user32")); + RegisterTouchWindow = static_cast<qt_RegisterTouchWindowPtr>(library.resolve("RegisterTouchWindow")); + GetTouchInputInfo = static_cast<qt_GetTouchInputInfoPtr>(library.resolve("GetTouchInputInfo")); + CloseTouchInputHandle = static_cast<qt_CloseTouchInputHandlePtr>(library.resolve("CloseTouchInputHandle")); + + widgetForTouchPointId.clear(); + widgetCurrentTouchPoints.clear(); + touchInputIDToTouchPointID.clear(); + appAllTouchPoints.clear(); + appCurrentTouchPoints.clear(); +} + +QTouchEvent::TouchPoint *QApplicationPrivate::findClosestTouchPoint(const QList<QTouchEvent::TouchPoint *> &appActiveTouchPoints, + const QPointF &screenPos) +{ + QTouchEvent::TouchPoint *closestTouchPoint = 0; + qreal closestDistance; + for (int i = 0; i < appActiveTouchPoints.count(); ++i) { + QTouchEvent::TouchPoint *touchPoint = appActiveTouchPoints.at(i); + qreal distance = QLineF(screenPos, touchPoint->d->screenPos).length(); + if (!closestTouchPoint || distance < closestDistance) { + closestTouchPoint = touchPoint; + closestDistance = distance; + } + } + return closestTouchPoint; +} + +QEvent::Type QApplicationPrivate::appendTouchPoint(QTouchEvent::TouchPoint *touchPoint, + QList<QTouchEvent::TouchPoint *> *currentTouchPoints) +{ + QEvent::Type eventType = currentTouchPoints->isEmpty() + ? QEvent::TouchBegin + : QEvent::TouchUpdate; + + // insort touch point (for the app) + int at = 0; + for (; at < appCurrentTouchPoints.count(); ++at) { + if (appCurrentTouchPoints.at(at)->id() > touchPoint->id()) + break; + } + appCurrentTouchPoints.insert(at, touchPoint); + // again, for the widget's currentTouchPoints + for (at = 0; at < currentTouchPoints->count(); ++at) { + if (currentTouchPoints->at(at)->id() > touchPoint->id()) + break; + } + currentTouchPoints->insert(at, touchPoint); + + if (appCurrentTouchPoints.count() > appAllTouchPoints.count()) { + qFatal("Qt: INTERNAL ERROR: appCurrentTouchPoints.count() (%d) > appAllTouchPoints.count() (%d)", + appCurrentTouchPoints.count(), + appAllTouchPoints.count()); + } + + return eventType; +} + +QEvent::Type QApplicationPrivate::removeTouchPoint(QTouchEvent::TouchPoint *touchPoint, + QList<QTouchEvent::TouchPoint *> *currentTouchPoints) +{ + // remove touch point from all known touch points + for (int i = qMin(appCurrentTouchPoints.count() - 1, touchPoint->id()); i >= 0; --i) { + if (appCurrentTouchPoints.at(i) == touchPoint) { + appCurrentTouchPoints.removeAt(i); + break; + } + } + // again, for the widget's currentTouchPoints + for (int i = qMin(currentTouchPoints->count() - 1, touchPoint->id()); i >= 0; --i) { + if (currentTouchPoints->at(i) == touchPoint) { + currentTouchPoints->removeAt(i); + break; + } + } + + return currentTouchPoints->isEmpty() ? QEvent::TouchEnd : QEvent::TouchUpdate; +} + +bool QApplicationPrivate::translateTouchEvent(const MSG &msg) +{ + Q_Q(QApplication); + + QWidget *widgetForHwnd = QWidget::find(msg.hwnd); + if (!widgetForHwnd) + return false; + + QList<QTouchEvent::TouchPoint *> appActiveTouchPoints = appCurrentTouchPoints; + + QHash<QWidget *, QTouchEvent> widgetsNeedingEvents; + QVector<TOUCHINPUT> winTouchInputs(msg.wParam); + memset(winTouchInputs.data(), 0, sizeof(TOUCHINPUT) * winTouchInputs.count()); + QApplicationPrivate::GetTouchInputInfo((HANDLE) msg.lParam, msg.wParam, winTouchInputs.data(), sizeof(TOUCHINPUT)); + for (int i = 0; i < winTouchInputs.count(); ++i) { + const TOUCHINPUT &touchInput = winTouchInputs.at(i); + + int touchPointID = touchInputIDToTouchPointID.value(touchInput.dwID, -1); + if (touchPointID == -1) { + touchPointID = touchInputIDToTouchPointID.count(); + touchInputIDToTouchPointID.insert(touchInput.dwID, touchPointID); + } + + if (appAllTouchPoints.count() <= touchPointID) + appAllTouchPoints.resize(touchPointID + 1); + + QTouchEvent::TouchPoint *touchPoint = appAllTouchPoints.at(touchPointID); + if (!touchPoint) + touchPoint = appAllTouchPoints[touchPointID] = new QTouchEvent::TouchPoint(touchPointID); + + // update state + QWidget *widget = 0; + bool down = touchPoint->d->state != Qt::TouchPointReleased; + QPointF screenPos(qreal(touchInput.x) / qreal(100.), qreal(touchInput.y) / qreal(100.)); + QEvent::Type eventType = QEvent::None; + + QList<QTouchEvent::TouchPoint *> activeTouchPoints; + if (!down && (touchInput.dwFlags & TOUCHEVENTF_DOWN)) { + // determine which widget this event will go to + widget = widgetForHwnd->childAt(widgetForHwnd->mapFromGlobal(screenPos.toPoint())); + if (!widget) + widget = widgetForHwnd; + + QTouchEvent::TouchPoint *closestTouchPoint = findClosestTouchPoint(appActiveTouchPoints, screenPos); + if (closestTouchPoint) { + QWidget *closestWidget = widgetForTouchPointId.value(closestTouchPoint->d->id); + if (closestWidget + && (widget->isAncestorOf(closestWidget) + || closestWidget->isAncestorOf(widget))) + widget = closestWidget; + } + widgetForTouchPointId[touchPoint->d->id] = widget; + + QList<QTouchEvent::TouchPoint *> ¤tTouchPoints = widgetCurrentTouchPoints[widget]; + eventType = appendTouchPoint(touchPoint, ¤tTouchPoints); + // make sure new points are added to activeTouchPoints as well + appActiveTouchPoints = appCurrentTouchPoints; + activeTouchPoints = currentTouchPoints; + + touchPoint->d->state = Qt::TouchPointPressed; + touchPoint->d->screenPos + = touchPoint->d->startScreenPos + = touchPoint->d->lastScreenPos + = screenPos; + touchPoint->d->pressure = qreal(1.); + } else if (down && (touchInput.dwFlags & TOUCHEVENTF_UP)) { + widget = widgetForTouchPointId.take(touchPoint->d->id); + QList<QTouchEvent::TouchPoint *> ¤tTouchPoints = widgetCurrentTouchPoints[widget]; + appActiveTouchPoints = appCurrentTouchPoints; + activeTouchPoints = currentTouchPoints; + eventType = removeTouchPoint(touchPoint, ¤tTouchPoints); + + touchPoint->d->state = Qt::TouchPointReleased; + touchPoint->d->lastScreenPos = touchPoint->d->screenPos; + touchPoint->d->screenPos = screenPos; + touchPoint->d->pressure = qreal(0.); + } else if (down) { + widget = widgetForTouchPointId.value(touchPoint->d->id); + appActiveTouchPoints = appCurrentTouchPoints; + activeTouchPoints = widgetCurrentTouchPoints.value(widget); + eventType = QEvent::TouchUpdate; + touchPoint->d->state = screenPos == touchPoint->d->screenPos + ? Qt::TouchPointStationary + : Qt::TouchPointMoved; + touchPoint->d->lastScreenPos = touchPoint->d->screenPos; + touchPoint->d->screenPos = screenPos; + // pressure should still be 1. + } + Q_ASSERT(widget != 0 && eventType != QEvent::None); + + if (touchPoint->d->state != Qt::TouchPointStationary) { + widgetsNeedingEvents.insert(widget, + QTouchEvent(eventType, q->keyboardModifiers(), activeTouchPoints)); + } + } + QApplicationPrivate::CloseTouchInputHandle((HANDLE) msg.lParam); + + if (widgetsNeedingEvents.isEmpty()) + return false; + + bool returnValue = false; + qt_tabletChokeMouse = false; + + QHash<QWidget *, QTouchEvent>::ConstIterator it = widgetsNeedingEvents.constBegin(); + const QHash<QWidget *, QTouchEvent>::ConstIterator end = widgetsNeedingEvents.constEnd(); + for (; it != end; ++it) { + QWidget *widget = it.key(); + if (!QApplicationPrivate::tryModalHelper(widget, 0)) + continue; + + QTouchEvent touchEvent = it.value(); + updateTouchPointsForWidget(widget, &touchEvent); + + switch (touchEvent.type()) { + case QEvent::TouchBegin: + { + // if the TouchBegin handler recurses, we assume that means the event + // has been implicitly accepted and continue to send touch events + widget->setAttribute(Qt::WA_AcceptedTouchBeginEvent); + bool res = QApplication::sendSpontaneousEvent(widget, &touchEvent) + && touchEvent.isAccepted(); + returnValue = returnValue || (qt_tabletChokeMouse = qt_tabletChokeMouse || res); + break; + } + case QEvent::TouchEnd: + { + QList<QTouchEvent::TouchPoint *> currentTouchPoints = widgetCurrentTouchPoints.take(widget); + if (!currentTouchPoints.isEmpty()) { + qFatal("Qt: INTERNAL ERROR, the widget's currentTouchPoints should be empty!"); + } + // fall-through intended + } + default: + if (widget->testAttribute(Qt::WA_AcceptedTouchBeginEvent)) { + (void) QApplication::sendSpontaneousEvent(widget, &touchEvent); + qt_tabletChokeMouse = true; + } + returnValue = returnValue || qt_tabletChokeMouse; + break; + } + } + + return returnValue; +} + QT_END_NAMESPACE diff --git a/src/gui/kernel/qapplication_x11.cpp b/src/gui/kernel/qapplication_x11.cpp index 90376b3..060e948 100644 --- a/src/gui/kernel/qapplication_x11.cpp +++ b/src/gui/kernel/qapplication_x11.cpp @@ -4414,7 +4414,6 @@ bool QETWidget::translateMouseEvent(const XEvent *event) QMouseEvent e(type, pos, globalPos, button, buttons, modifiers); QApplicationPrivate::sendMouseEvent(widget, &e, alienWidget, this, &qt_button_down, qt_last_mouse_receiver); - if (type == QEvent::MouseButtonPress && button == Qt::RightButton && (openPopupCount == oldOpenPopupCount)) { @@ -5022,6 +5021,7 @@ bool QETWidget::translatePropertyEvent(const XEvent *event) return true; } + // // Paint event translation // diff --git a/src/gui/kernel/qdirectionrecognizer.cpp b/src/gui/kernel/qdirectionrecognizer.cpp new file mode 100644 index 0000000..2896523 --- /dev/null +++ b/src/gui/kernel/qdirectionrecognizer.cpp @@ -0,0 +1,176 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the $MODULE$ of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qdirectionrecognizer_p.h" + +#include <math.h> + +QT_BEGIN_NAMESPACE + +static const int SIZE = 20; + +QDirectionSimpleRecognizer::QDirectionSimpleRecognizer() +{ +} + +Direction QDirectionSimpleRecognizer::addPosition(const QPoint &pos) +{ + if (!directions.isEmpty()) { + const QPoint tmp = pos - directions.back().point; + if (tmp.manhattanLength() < 5) + return Direction(); + } + if (lastPoint.isNull()) { + lastPoint = pos; + return Direction(); + } + int dx = pos.x() - lastPoint.x(); + int dy = pos.y() - lastPoint.y(); + Qt::DirectionType direction = Qt::NoDirection; + if (dx < 0) { + if (-1*dx >= SIZE/2) + direction = Qt::LeftDirection; + } else { + if (dx >= SIZE/2) + direction = Qt::RightDirection; + } + if (dy < 0) { + if (-1*dy >= SIZE/2) + direction = Qt::UpDirection; + } else { + if (dy >= SIZE/2) + direction = Qt::DownDirection; + } + if (direction == Qt::NoDirection) + return Direction(); + + lastPoint = pos; + directions.push_back(Direction(direction, pos)); + return Direction(direction, pos); +} + + +DirectionList QDirectionSimpleRecognizer::getDirections() const +{ + return directions; +} + +void QDirectionSimpleRecognizer::reset() +{ + directions.clear(); + lastPoint = QPoint(); +} + + +/// QDirectionDiagonalRecognizer + +QDirectionDiagonalRecognizer::QDirectionDiagonalRecognizer() +{ +} + +Direction QDirectionDiagonalRecognizer::addPosition(const QPoint &pos) +{ + if (!directions.isEmpty()) { + const QPoint tmp = pos - directions.back().point; + if (tmp.manhattanLength() < 5) + return Direction(); + } + if (lastPoint.isNull()) { + lastPoint = pos; + return Direction(); + } + int dx = pos.x() - lastPoint.x(); + int dy = pos.y() - lastPoint.y(); + int distance = sqrt(static_cast<double>(dx*dx + dy*dy)); + if (distance < SIZE/2) + return Direction(); + + Qt::DirectionType direction = Qt::NoDirection; + double angle = atan(1.0*qAbs(lastPoint.y() - pos.y())/qAbs(pos.x() - lastPoint.x())) * 180. / M_PI; + if (dx < 0 && dy <= 0) { + angle = 180 - angle; + } else if (dx <= 0 && dy > 0) { + angle += 180; + } else if (dx > 0 && dy > 0) { + angle = 360-angle; + } + if (angle < 0) + angle += 360; + if (angle <= 20) + direction = Qt::RightDirection; + else if (angle <= 65) + direction = Qt::RightUpDirection; + else if (angle <= 110) + direction = Qt::UpDirection; + else if (angle <= 155) + direction = Qt::LeftUpDirection; + else if (angle <= 200) + direction = Qt::LeftDirection; + else if (angle <= 245) + direction = Qt::LeftDownDirection; + else if (angle <= 290) + direction = Qt::DownDirection; + else if (angle <= 335) + direction = Qt::RightDownDirection; + else + direction = Qt::RightDirection; + + if (direction == Qt::NoDirection) + return Direction(); + + lastPoint = pos; + directions.push_back(Direction(direction, pos)); + return Direction(direction, pos); +} + + +DirectionList QDirectionDiagonalRecognizer::getDirections() const +{ + return directions; +} + +void QDirectionDiagonalRecognizer::reset() +{ + directions.clear(); + lastPoint = QPoint(); +} + +QT_END_NAMESPACE diff --git a/src/gui/kernel/qdirectionrecognizer_p.h b/src/gui/kernel/qdirectionrecognizer_p.h new file mode 100644 index 0000000..ca3d1c1 --- /dev/null +++ b/src/gui/kernel/qdirectionrecognizer_p.h @@ -0,0 +1,105 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the $MODULE$ of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QDIRECTIONRECOGNIZER_P_H +#define QDIRECTIONRECOGNIZER_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include "qpoint.h" +#include "qlist.h" + +QT_BEGIN_NAMESPACE + +struct Direction +{ + Qt::DirectionType direction; + QPoint point; + + Direction(Qt::DirectionType dir, const QPoint &pt) + : direction(dir), point(pt) { } + Direction() + : direction(Qt::NoDirection) { } + + inline bool isEmpty() const { return direction == Qt::NoDirection; } + inline bool isNull() const { return direction == Qt::NoDirection; } +}; + +typedef QList<Direction> DirectionList; + +class QDirectionSimpleRecognizer +{ +public: + QDirectionSimpleRecognizer(); + Direction addPosition(const QPoint &pos); + DirectionList getDirections() const; + void reset(); + +private: + QPoint lastPoint; + DirectionList directions; +}; + +class QDirectionDiagonalRecognizer +{ +public: + QDirectionDiagonalRecognizer(); + Direction addPosition(const QPoint &pos); + DirectionList getDirections() const; + void reset(); + +private: + QPoint lastPoint; + DirectionList directions; +}; + +QT_END_NAMESPACE + +#endif // QDIRECTIONRECOGNIZER_P_H diff --git a/src/gui/kernel/qdirectionsimplificator_p.h b/src/gui/kernel/qdirectionsimplificator_p.h new file mode 100644 index 0000000..7b71ca0 --- /dev/null +++ b/src/gui/kernel/qdirectionsimplificator_p.h @@ -0,0 +1,172 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the $MODULE$ of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QDIRECTIONSIMPLIFICATOR_P_H +#define QDIRECTIONSIMPLIFICATOR_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include "private/qdirectionrecognizer_p.h" + +QT_BEGIN_NAMESPACE + +class QDirectionSimplificator +{ +public: + QDirectionSimplificator(const DirectionList &dir); + + bool simplify(DirectionList *result); + +private: + DirectionList directions; + DirectionList lastResult; + enum State { + None, + Trim, // remove first and last element + AccidentalMoves, // 66866 => 6666 + ComplexAccidentalMoves, // 778788 => 777888 (swapping elements without changing direction) + ShortMoves, // (moves of length 1) + } state; + + struct SimplifyTrim + { + SimplifyTrim() : state(0) { } + bool operator()(DirectionList &directions) + { + if (state == 0) { + directions.removeFirst(); + state = 1; + } else if (state == 1) { + directions.removeLast(); + state = 2; + } else if (state == 2 && directions.size() >= 2) { + directions.removeFirst(); + directions.removeLast(); + state = 3; + } else { + return false; + } + return true; + } + int state; + }; + struct SimplifyAccidentalMoves + { + SimplifyAccidentalMoves() : state(0) { } + bool operator()(DirectionList &directions) + { + return false; + } + int state; + }; + struct SimplifyComplexAccidentalMoves + { + SimplifyComplexAccidentalMoves() : state(0) { } + bool operator()(DirectionList &directions) + { + return false; + } + int state; + }; + + SimplifyTrim trim; + SimplifyAccidentalMoves accidentalMoves; + SimplifyComplexAccidentalMoves complexAccidentalMoves; + //SimplifyShortMoves shortMoves; +}; + +QDirectionSimplificator::QDirectionSimplificator(const DirectionList &dir) + : directions(dir), state(None) +{ +} + +bool QDirectionSimplificator::simplify(DirectionList *result) +{ + if (directions.isEmpty() || !result) + return false; + *result = directions; + switch(state) { + case None: + state = Trim; + trim = SimplifyTrim(); + case Trim: + if (trim(*result)) + break; + *result = lastResult; + state = AccidentalMoves; + accidentalMoves = SimplifyAccidentalMoves(); + case AccidentalMoves: + if (accidentalMoves(*result)) + break; + *result = lastResult; + state = ComplexAccidentalMoves; + complexAccidentalMoves = SimplifyComplexAccidentalMoves(); + case ComplexAccidentalMoves: + if (complexAccidentalMoves(*result)) + break; + *result = lastResult; + // state = ShortMoves; + // shortMoves = SimplifyShortMoves(); + // case ShortMoves: + // if (shortMoves(*result)) + // break; + // state = None; + default: + return false; + } + lastResult = *result; + if (lastResult.isEmpty()) + return false; + return true; +} + +QT_END_NAMESPACE + +#endif // QDIRECTIONSIMPLIFICATOR_P_H diff --git a/src/gui/kernel/qevent.cpp b/src/gui/kernel/qevent.cpp index 0ab4423..d616e5e 100644 --- a/src/gui/kernel/qevent.cpp +++ b/src/gui/kernel/qevent.cpp @@ -52,6 +52,8 @@ QT_BEGIN_NAMESPACE +QString qt_getStandardGestureTypeName(Qt::GestureType type); + /*! \class QInputEvent \ingroup events @@ -3322,6 +3324,9 @@ QDebug operator<<(QDebug dbg, const QEvent *e) { case QEvent::ChildRemoved: n = n ? n : "ChildRemoved"; dbg.nospace() << "QChildEvent(" << n << ", " << (static_cast<const QChildEvent*>(e))->child(); return dbg.space(); + case QEvent::Gesture: + n = "Gesture"; + break; default: dbg.nospace() << "QEvent(" << (const void *)e << ", type = " << e->type() << ')'; return dbg.space(); @@ -3518,4 +3523,373 @@ QMenubarUpdatedEvent::QMenubarUpdatedEvent(QMenuBar * const menuBar) #endif +/*! + \class QGestureEvent + \since 4.6 + \ingroup events + + \brief The QGestureEvent class provides the parameters used for + gesture recognition. + + The QGestureEvent class contains a list of gestures that are being + executed right now (\l{QGestureEvent::}{gestureTypes()}) and a + list of gestures that are cancelled (the gesture might be + cancelled because the window lost focus, or because of timeout, + etc). + + \sa QGesture +*/ + +/*! + Creates new QGestureEvent containing a list of \a gestures that + are being executed and a list of gesture that were cancelled (\a + cancelledGestures). +*/ +QGestureEvent::QGestureEvent(const QSet<QGesture*> &gestures, + const QSet<QString> &cancelledGestures) + : QEvent(QEvent::Gesture), m_cancelledGestures(cancelledGestures) +{ + setAccepted(false); + foreach(QGesture *r, gestures) + m_gestures.insert(r->type(), r); +} + +/*! + Destroys the QGestureEvent object. +*/ +QGestureEvent::~QGestureEvent() +{ +} + +/*! + Returns true if the gesture event contains gesture of specific \a + type; returns false otherwise. +*/ +bool QGestureEvent::contains(Qt::GestureType type) const +{ + return contains(qt_getStandardGestureTypeName(type)); +} + +/*! + Returns true if the gesture event contains gesture of specific \a + type; returns false otherwise. +*/ +bool QGestureEvent::contains(const QString &type) const +{ + return gesture(type) != 0; +} + +/*! + Returns a list of gesture names that this event contains. +*/ +QList<QString> QGestureEvent::gestureTypes() const +{ + return m_gestures.keys(); +} + +/*! + Returns extended information about a gesture of specific \a type. +*/ +const QGesture* QGestureEvent::gesture(Qt::GestureType type) const +{ + return gesture(qt_getStandardGestureTypeName(type)); +} + +/*! + Returns extended information about a gesture of specific \a type. +*/ +const QGesture* QGestureEvent::gesture(const QString &type) const +{ + return m_gestures.value(type, 0); +} + +/*! + Returns extended information about all gestures in the event. +*/ +QList<QGesture*> QGestureEvent::gestures() const +{ + return m_gestures.values(); +} + +/*! + Returns a set of gesture names that used to be executed, but were + cancelled (i.e. they were not finished properly). +*/ +QSet<QString> QGestureEvent::cancelledGestures() const +{ + return m_cancelledGestures; +} + +/*! + Sets the accept flag of the all gestures inside the event object, + the equivalent of calling \l{QEvent::accept()}{accept()} or + \l{QEvent::setAccepted()}{setAccepted(true)}. + + Setting the accept parameter indicates that the event receiver + wants the gesture. Unwanted gestures might be propagated to the parent + widget. +*/ +void QGestureEvent::acceptAll() +{ + QHash<QString, QGesture*>::iterator it = m_gestures.begin(), + e = m_gestures.end(); + for(; it != e; ++it) + it.value()->accept(); + setAccepted(true); +} + +/*! + Sets the accept flag of the specified gesture inside the event + object, the equivalent of calling + \l{QGestureEvent::gesture()}{gesture(type)}->\l{QGesture::accept()}{accept()} + + Setting the accept parameter indicates that the event receiver + wants the gesture. Unwanted gestures might be propagated to the parent + widget. +*/ +void QGestureEvent::accept(Qt::GestureType type) +{ + if (QGesture *g = m_gestures.value(qt_getStandardGestureTypeName(type), 0)) + g->accept(); +} + +/*! + Sets the accept flag of the specified gesture inside the event + object, the equivalent of calling + \l{QGestureEvent::gesture()}{gesture(type)}->\l{QGesture::accept()}{accept()} + + Setting the accept parameter indicates that the event receiver + wants the gesture. Unwanted gestures might be propagated to the parent + widget. +*/ +void QGestureEvent::accept(const QString &type) +{ + if (QGesture *g = m_gestures.value(type, 0)) + g->accept(); +} + +/*! \class QTouchEvent + \brief The QTouchEvent class contains parameters that describe a touch event +. + \since 4.6 + \ingroup events + + Touch events occur when pressing, releasing, or moving one or more + touch points on a touch device (such as a touch-screen or + track-pad), and if the widget has the Qt::WA_AcceptTouchEvents + attribute. + + Like QMouseEvent, Qt automatically grabs the touch device on the + first press inside a widget; the widget will receive all touch + events until the last touch point is released. + + A touch event contains a special accept flag that indicates + whether the receiver wants the event. By default, the event is + ignored. You should call accept() if the touch event is handled by + your widget. A touch event is propagated up the parent widget + chain until a widget accepts it with accept(), or an event filter + consumes it. If the touch event is neither accepted nor consumed, + then mouse events are simulated from the state of the first touch + point. + + All touch events are of type QEvent::Touch. The touchPoints() + function returns a list of all touch points contained in the + event. Information about each touch point can be retreived using + the QTouchEvent::TouchPoint class. + + The Qt::TouchPointState enum describes the different states that a + touch point may have. + + QTouchEvent::TouchPoint Qt::TouchPointState Qt::WA_AcceptTouchEvents +*/ + +/*! \enum Qt::TouchPointState + \since 4.6 + + This enum represents the state of a touch point at the time the + QTouchEvent occurred. + + \value TouchPointPressed The touch point is now pressed. + \value TouchPointMoved The touch point moved. + \value TouchPointStationary The touch point did not move. + \value TouchPointReleased The touch point was released. +*/ + +/*! \class QTouchEvent::TouchPoint + \brief The QTouchEvent::TouchPoint class provide information about a touch point in a QTouchEvent. + \since 4.6 +*/ + +/*! + Constructs a QTouchEvent with the given \a type and \a + touchPoints. The \a modifiers are the current keyboard modifiers + at the time of the event. +*/ +QTouchEvent::QTouchEvent(QEvent::Type type, + Qt::KeyboardModifiers modifiers, + const QList<QTouchEvent::TouchPoint *> &touchPoints) + : QInputEvent(type, modifiers), _touchPoints(touchPoints) +{ } + +/*! + Destroys the QTouchEvent. +*/ +QTouchEvent::~QTouchEvent() +{ } + +/*! \fn const QList<QTouchEvent::TouchPoint *> &QTouchEvent::TouchPoints() const + + Returns the list of touch points contained in the touch event. +*/ + +/*! \internal + + Constructs a QTouchEvent::TouchPoint for use in a QTouchEvent. +*/ +QTouchEvent::TouchPoint::TouchPoint(int id) + : d(new QTouchEventTouchPointPrivate(id)) +{ } + +/*! \internal + + Destroys the QTouchEvent::TouchPoint. +*/ +QTouchEvent::TouchPoint::~TouchPoint() +{ + delete d; +} + +/*! + Returns the id number of this touch point. Id numbers are + sequential, starting at zero, meaning the first touch point has id + 0, the second has id 1, and so on... +*/ +int QTouchEvent::TouchPoint::id() const +{ + return d->id; +} + +/*! \internal */ +void QTouchEvent::TouchPoint::setId(int id) +{ + d->id = id; +} + +/*! + Returns the current state of this touch point. +*/ +Qt::TouchPointState QTouchEvent::TouchPoint::state() const +{ + return d->state; +} + +/*! \internal */ +void QTouchEvent::TouchPoint::setState(Qt::TouchPointState state) +{ + d->state = state; +} + +/*! + Returns the position of this touch point, relative to the widget + or item that received the event. +*/ +QPointF QTouchEvent::TouchPoint::pos() const +{ + return d->pos; +} + +/*! \internal */ +void QTouchEvent::TouchPoint::setPos(const QPointF &pos) +{ + d->pos = pos; +} + +/*! + Returns the starting position of this touch point, relative to the + widget that received the event. +*/ +QPointF QTouchEvent::TouchPoint::startPos() const +{ + return d->startPos; +} + +/*! \internal */ +void QTouchEvent::TouchPoint::setStartPos(const QPointF &startPos) +{ + d->startPos = startPos; +} + +/*! + Returns the position of this touch point from the previous touch + event, relative to the widget that received the event. +*/ +QPointF QTouchEvent::TouchPoint::lastPos() const +{ + return d->lastPos; +} + +/*! \internal */ +void QTouchEvent::TouchPoint::setLastPos(const QPointF &lastPos) +{ + d->lastPos = lastPos; +} + +/*! + Returns the screen position of this touch point. +*/ +QPointF QTouchEvent::TouchPoint::screenPos() const +{ + return d->screenPos; +} + +/*! \internal */ +void QTouchEvent::TouchPoint::setScreenPos(const QPointF &screenPos) +{ + d->screenPos = screenPos; +} + +/*! + Returns the starting screen position of this touch point. +*/ +QPointF QTouchEvent::TouchPoint::startScreenPos() const +{ + return d->startScreenPos; +} + +/*! \internal */ +void QTouchEvent::TouchPoint::setStartScreenPos(const QPointF &startScreenPos) +{ + d->startScreenPos = startScreenPos; +} + +/*! + Returns the screen position of this touch point from the previous + touch event. +*/ +QPointF QTouchEvent::TouchPoint::lastScreenPos() const +{ + return d->lastScreenPos; +} + +/*! \internal */ +void QTouchEvent::TouchPoint::setLastScreenPos(const QPointF &lastScreenPos) +{ + d->lastScreenPos = lastScreenPos; +} + +/*! + Returns the pressure of this touch point. The return value is in + the range 0.0 to 1.0. +*/ +qreal QTouchEvent::TouchPoint::pressure() const +{ + return d->pressure; +} + +/*! \internal */ +void QTouchEvent::TouchPoint::setPressure(qreal pressure) +{ + d->pressure = pressure; +} + QT_END_NAMESPACE diff --git a/src/gui/kernel/qevent.h b/src/gui/kernel/qevent.h index 449730d..ed4129c 100644 --- a/src/gui/kernel/qevent.h +++ b/src/gui/kernel/qevent.h @@ -52,6 +52,9 @@ #include <QtGui/qmime.h> #include <QtGui/qdrag.h> #include <QtCore/qvariant.h> +#include <QtCore/qmap.h> +#include <QtCore/qset.h> +#include <QtGui/qgesture.h> QT_BEGIN_HEADER @@ -710,6 +713,41 @@ private: }; #endif +class Q_GUI_EXPORT QGestureEvent : public QEvent +{ +public: + QGestureEvent(const QSet<QGesture*> &gestures, + const QSet<QString> &cancelledGestures = QSet<QString>()); + ~QGestureEvent(); + + bool contains(Qt::GestureType type) const; + bool contains(const QString &type) const; + + QList<QString> gestureTypes() const; + + const QGesture* gesture(Qt::GestureType type) const; + const QGesture* gesture(const QString &type) const; + QList<QGesture*> gestures() const; + + QSet<QString> cancelledGestures() const; + + void acceptAll(); +#ifndef Q_NO_USING_KEYWORD + using QEvent::accept; +#else + inline void accept() { QEvent::accept(); } +#endif + void accept(Qt::GestureType type); + void accept(const QString &type); + +protected: + QHash<QString, QGesture*> m_gestures; + QSet<QString> m_cancelledGestures; + + friend class QApplication; + friend class QGestureManager; +}; + #ifndef QT_NO_DEBUG_STREAM Q_GUI_EXPORT QDebug operator<<(QDebug, const QEvent *); #endif @@ -719,6 +757,64 @@ inline bool operator==(QKeyEvent *e, QKeySequence::StandardKey key){return (e ? inline bool operator==(QKeySequence::StandardKey key, QKeyEvent *e){return (e ? e->matches(key) : false);} #endif // QT_NO_SHORTCUT +class QTouchEventTouchPointPrivate; +class Q_GUI_EXPORT QTouchEvent : public QInputEvent +{ +public: + class Q_GUI_EXPORT TouchPoint + { + public: + TouchPoint(int id = -1); + ~TouchPoint(); + + int id() const; + void setId(int id); + + Qt::TouchPointState state() const; + void setState(Qt::TouchPointState state); + + QPointF pos() const; + void setPos(const QPointF &pos); + + QPointF startPos() const; + void setStartPos(const QPointF &startPos); + + QPointF lastPos() const; + void setLastPos(const QPointF &lastPos); + + QPointF screenPos() const; + void setScreenPos(const QPointF &screenPos); + + QPointF startScreenPos() const; + void setStartScreenPos(const QPointF &startScreenPos); + + QPointF lastScreenPos() const; + void setLastScreenPos(const QPointF &lastScreenPos); + + qreal pressure() const; // 0.0 -> 1.0 + void setPressure(qreal pressure); + + protected: + QTouchEventTouchPointPrivate *d; + + friend class QApplication; + friend class QApplicationPrivate; + }; + + QTouchEvent(QEvent::Type type, + Qt::KeyboardModifiers modifiers, + const QList<QTouchEvent::TouchPoint *> &touchPoints); + ~QTouchEvent(); + + inline const QList<QTouchEvent::TouchPoint *> &touchPoints() const { return _touchPoints; } + +protected: + QList<QTouchEvent::TouchPoint *> _touchPoints; + + friend class QApplication; + friend class QApplicationPrivate; +}; + QT_END_NAMESPACE QT_END_HEADER diff --git a/src/gui/kernel/qevent_p.h b/src/gui/kernel/qevent_p.h index 8e762d6..dd78c3e 100644 --- a/src/gui/kernel/qevent_p.h +++ b/src/gui/kernel/qevent_p.h @@ -89,6 +89,23 @@ protected: friend class QMouseEvent; }; +class QTouchEventTouchPointPrivate +{ +public: + inline QTouchEventTouchPointPrivate(int id) + : id(id), + state(Qt::TouchPointReleased), + pressure(qreal(-1.)) + { } + + int id; + Qt::TouchPointState state; + QPointF pos, startPos, lastPos; + QPointF scenePos, startScenePos, lastScenePos; + QPointF screenPos, startScreenPos, lastScreenPos; + qreal pressure; +}; + QT_END_NAMESPACE #endif // QEVENT_P_H diff --git a/src/gui/kernel/qgesture.cpp b/src/gui/kernel/qgesture.cpp new file mode 100644 index 0000000..ac55521 --- /dev/null +++ b/src/gui/kernel/qgesture.cpp @@ -0,0 +1,290 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the $MODULE$ of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qgesture.h" +#include <private/qgesture_p.h> + +QT_BEGIN_NAMESPACE + +QString qt_getStandardGestureTypeName(Qt::GestureType type); + +/*! + \class QGesture + \since 4.6 + + \brief The QGesture class represents a gesture, containing all + properties that describe a gesture. + + The widget receives a QGestureEvent with a list of QGesture + objects that represent gestures that are occuring on it. The class + has a list of properties that can be queried by the user to get + some gesture-specific arguments (i.e. position of the tap in the + DoubleTap gesture). + + When creating custom gesture recognizers, they might add new + properties to the gesture object, or custom gesture developers + might subclass the QGesture objects to provide some extended + information. However, if the gesture developer wants to add a new + property to the gesture object that describe coordinate (like a + QPoint or QRect), it is required to subclass the QGesture and + re-implement the \l{QGesture::}{translate()} function to make sure + the coordinates are translated properly when the gesture event is + propagated to parent widgets. + + \sa QGestureEvent, QGestureRecognizer +*/ + +/*! + Creates a new gesture object of type \a type in a \a state and + marks it as a child of \a parent. + + Usually QGesture objects should only be contructed by the + QGestureRecognizer classes. +*/ +QGesture::QGesture(QObject *parent, const QString &type, Qt::GestureState state) + : QObject(*new QGesturePrivate, parent), m_accept(0) +{ + Q_D(QGesture); + d->type = type; + d->state = state; +} + +/*! + Creates a new gesture object of type \a type in a \a state and + marks it as a child of \a parent. + + This constructor also fills some basic information about the + gesture like a \a startPos which describes the start point of the + gesture, \a lastPos - last point where the gesture happened, \a + pos - a current point, \a rect - a bounding rect of the gesture, + \a hotSpot - a center point of the gesture, \a startTime - a time + when the gesture has started, \a duration - how long the gesture + is going on. + + Usually QGesture objects should only be contructed by the + QGestureRecognizer classes. +*/ +QGesture::QGesture(QObject *parent, const QString &type, const QPoint &startPos, + const QPoint &lastPos, const QPoint &pos, const QRect &rect, + const QPoint &hotSpot, const QDateTime &startTime, + uint duration, Qt::GestureState state) + : QObject(*new QGesturePrivate, parent) +{ + Q_D(QGesture); + d->type = type; + d->state = state; + d->init(startPos, lastPos, pos, rect, hotSpot, startTime, duration); +} + +/*! \internal +*/ +QGesture::QGesture(QGesturePrivate &dd, QObject *parent, const QString &type, + Qt::GestureState state) + : QObject(dd, parent) +{ + Q_D(QGesture); + d->type = type; + d->state = state; +} + +/*! + Destroys the gesture object. +*/ +QGesture::~QGesture() +{ +} + +/*! + \property QGesture::type + + \brief The type of the gesture. +*/ +QString QGesture::type() const +{ + return d_func()->type; +} + + +/*! + \property QGesture::state + + \brief The current state of the gesture. +*/ +Qt::GestureState QGesture::state() const +{ + return d_func()->state; +} + +/*! + Translates the internal gesture properties that represent + coordinates by \a offset. + + Custom gesture recognizer developer have to re-implement this + function if they want to store custom properties that represent + coordinates. +*/ +void QGesture::translate(const QPoint &offset) +{ + Q_D(QGesture); + d->rect.translate(offset); + d->hotSpot += offset; + d->startPos += offset; + d->lastPos += offset; + d->pos += offset; +} + +/*! + \property QGesture::rect + + \brief The bounding rect of a gesture. +*/ +QRect QGesture::rect() const +{ + return d_func()->rect; +} + +/*! + \property QGesture::hotSpot + + \brief The center point of a gesture. +*/ +QPoint QGesture::hotSpot() const +{ + return d_func()->hotSpot; +} + +/*! + \property QGesture::startTime + + \brief The time when the gesture has started. +*/ +QDateTime QGesture::startTime() const +{ + return d_func()->startTime; +} + +/*! + \property QGesture::duration + + \brief The duration time of a gesture. +*/ +uint QGesture::duration() const +{ + return d_func()->duration; +} + +/*! + \property QGesture::startPos + + \brief The start position of the pointer. +*/ +QPoint QGesture::startPos() const +{ + return d_func()->startPos; +} + +/*! + \property QGesture::lastPos + + \brief The last recorded position of the pointer. +*/ +QPoint QGesture::lastPos() const +{ + return d_func()->lastPos; +} + +/*! + \property QGesture::pos + + \brief The current position of the pointer. +*/ +QPoint QGesture::pos() const +{ + return d_func()->pos; +} + +/*! + \class QPanningGesture + \since 4.6 + + \brief The QPanningGesture class represents a Pan gesture, + providing additional information related to panning. + + This class is provided for convenience, panning direction + information is also contained in the QGesture object in it's + properties. +*/ + +/*! \internal +*/ +QPanningGesture::QPanningGesture(QObject *parent) + : QGesture(*new QPanningGesturePrivate, parent, + qt_getStandardGestureTypeName(Qt::PanGesture)) +{ +} + +/*! \internal +*/ +QPanningGesture::~QPanningGesture() +{ +} + +/*! + \property QPanningGesture::lastDirection + + \brief The last recorded direction of panning. +*/ +Qt::DirectionType QPanningGesture::lastDirection() const +{ + return d_func()->lastDirection; +} + +/*! + \property QPanningGesture::direction + + \brief The current direction of panning. +*/ +Qt::DirectionType QPanningGesture::direction() const +{ + return d_func()->direction; +} + +QT_END_NAMESPACE diff --git a/src/gui/kernel/qgesture.h b/src/gui/kernel/qgesture.h new file mode 100644 index 0000000..64a1424 --- /dev/null +++ b/src/gui/kernel/qgesture.h @@ -0,0 +1,147 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the $MODULE$ of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QGESTURE_H +#define QGESTURE_H + +#include "qobject.h" +#include "qlist.h" +#include "qdatetime.h" +#include "qpoint.h" +#include "qrect.h" +#include "qmetatype.h" + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Gui) + +class QGesturePrivate; +class Q_GUI_EXPORT QGesture : public QObject +{ + Q_OBJECT + Q_DECLARE_PRIVATE(QGesture) + + Q_PROPERTY(QString type READ type) + Q_PROPERTY(Qt::GestureState state READ state) + + Q_PROPERTY(QRect rect READ rect) + Q_PROPERTY(QPoint hotSpot READ hotSpot) + Q_PROPERTY(QDateTime startTime READ startTime) + Q_PROPERTY(uint duration READ duration) + Q_PROPERTY(QPoint startPos READ startPos) + Q_PROPERTY(QPoint lastPos READ lastPos) + Q_PROPERTY(QPoint pos READ pos) + +public: + QGesture(QObject *parent, const QString &type, + Qt::GestureState state = Qt::GestureStarted); + QGesture(QObject *parent, + const QString &type, const QPoint &startPos, + const QPoint &lastPos, const QPoint &pos, const QRect &rect, + const QPoint &hotSpot, const QDateTime &startTime, + uint duration, Qt::GestureState state); + virtual ~QGesture(); + + inline void setAccepted(bool accepted) { m_accept = accepted; } + inline bool isAccepted() const { return m_accept; } + + inline void accept() { m_accept = true; } + inline void ignore() { m_accept = false; } + + QString type() const; + Qt::GestureState state() const; + + QRect rect() const; + QPoint hotSpot() const; + QDateTime startTime() const; + uint duration() const; + + QPoint startPos() const; + QPoint lastPos() const; + QPoint pos() const; + +protected: + QGesture(QGesturePrivate &dd, QObject *parent, const QString &type, + Qt::GestureState state = Qt::GestureStarted); + virtual void translate(const QPoint &offset); + +private: + ushort m_accept : 1; + + friend class QGestureManager; + friend class QApplication; + friend class QGraphicsScene; + friend class QGraphicsScenePrivate; + friend class QGestureRecognizerPan; + friend class QDoubleTapGestureRecognizer; + friend class QTapAndHoldGestureRecognizer; +}; + +class QPanningGesturePrivate; +class Q_GUI_EXPORT QPanningGesture : public QGesture +{ + Q_OBJECT + Q_DECLARE_PRIVATE(QPanningGesture) + + Q_PROPERTY(Qt::DirectionType lastDirection READ lastDirection) + Q_PROPERTY(Qt::DirectionType direction READ direction) + +public: + Qt::DirectionType lastDirection() const; + Qt::DirectionType direction() const; + +private: + QPanningGesture(QObject *parent = 0); + ~QPanningGesture(); + + friend class QGestureRecognizerPan; +}; + +Q_DECLARE_METATYPE(Qt::DirectionType) +Q_DECLARE_METATYPE(Qt::GestureState) + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // QGESTURE_H diff --git a/src/gui/kernel/qgesture_p.h b/src/gui/kernel/qgesture_p.h new file mode 100644 index 0000000..0f2e791 --- /dev/null +++ b/src/gui/kernel/qgesture_p.h @@ -0,0 +1,113 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the $MODULE$ of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QGESTURE_P_H +#define QGESTURE_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists for the convenience +// of other Qt classes. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include "qrect.h" +#include "qpoint.h" +#include "qdatetime.h" +#include "private/qobject_p.h" + +QT_BEGIN_NAMESPACE + +class QGraphicsItem; +class QGesturePrivate : public QObjectPrivate +{ + Q_DECLARE_PUBLIC(QGesture) + +public: + QGesturePrivate() + : state(Qt::NoGesture), graphicsItem(0), singleshot(0), duration(0) { } + + void init(const QPoint &startPos, const QPoint &lastPos, + const QPoint &pos, const QRect &rect, + const QPoint &hotSpot, const QDateTime &startTime, + uint duration) + { + this->rect = rect; + this->hotSpot = hotSpot; + this->startTime = startTime; + this->duration = duration; + this->startPos = startPos; + this->lastPos = lastPos; + this->pos = pos; + } + + QString type; + Qt::GestureState state; + + QPointer<QWidget> widget; + QGraphicsItem *graphicsItem; + uint singleshot:1; + + QRect rect; + QPoint hotSpot; + QDateTime startTime; + uint duration; + QPoint startPos; + QPoint lastPos; + QPoint pos; +}; + +class QPanningGesturePrivate : public QGesturePrivate +{ + Q_DECLARE_PUBLIC(QPanningGesture) + +public: + Qt::DirectionType lastDirection; + Qt::DirectionType direction; +}; + +QT_END_NAMESPACE + +#endif // QGESTURE_P_H diff --git a/src/gui/kernel/qgesturemanager.cpp b/src/gui/kernel/qgesturemanager.cpp new file mode 100644 index 0000000..9e8a5bb --- /dev/null +++ b/src/gui/kernel/qgesturemanager.cpp @@ -0,0 +1,642 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the $MODULE$ of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qgesturemanager_p.h" +#include "qgesture.h" +#include "qgesture_p.h" +#include "qevent.h" + +#include "qapplication.h" +#include "qapplication_p.h" +#include "qwidget.h" +#include "qwidget_p.h" + +#include "qgesturestandardrecognizers_p.h" + +#include "qdebug.h" + +// #define GESTURE_DEBUG +#ifndef GESTURE_DEBUG +# define DEBUG if (0) qDebug +#else +# define DEBUG qDebug +#endif + +QT_BEGIN_NAMESPACE + +bool qt_sendSpontaneousEvent(QObject *receiver, QEvent *event); + +static const unsigned int MaximumGestureRecognitionTimeout = 2000; + +QGestureManager::QGestureManager(QObject *parent) + : QObject(parent), eventDeliveryDelayTimeout(300), + delayedPressTimer(0), lastMousePressReceiver(0), lastMousePressEvent(QEvent::None, QPoint(), Qt::NoButton, 0, 0), + lastGestureId(0), state(NotGesture) +{ + qRegisterMetaType<Qt::DirectionType>(); + qRegisterMetaType<Qt::GestureState>(); + + recognizers << new QDoubleTapGestureRecognizer(this); + recognizers << new QTapAndHoldGestureRecognizer(this); + recognizers << new QGestureRecognizerPan(this); + + foreach(QGestureRecognizer *r, recognizers) + connect(r, SIGNAL(stateChanged(QGestureRecognizer::Result)), + this, SLOT(recognizerStateChanged(QGestureRecognizer::Result))); +} + +void QGestureManager::addRecognizer(QGestureRecognizer *recognizer) +{ + recognizer->setParent(this); + recognizers << recognizer; +} + +void QGestureManager::removeRecognizer(QGestureRecognizer *recognizer) +{ + recognizers.remove(recognizer); +} + +bool QGestureManager::filterEvent(QWidget *receiver, QEvent *event) +{ + QPoint currentPos; + switch (event->type()) { + case QEvent::MouseButtonPress: + case QEvent::MouseButtonRelease: + case QEvent::MouseButtonDblClick: + case QEvent::MouseMove: + currentPos = static_cast<QMouseEvent*>(event)->pos(); break; + default: break; + } + + const QMap<QString, int> &grabbedGestures = qApp->d_func()->grabbedGestures; + + bool ret = false; + QSet<QGestureRecognizer*> startedGestures; + QSet<QGestureRecognizer*> finishedGestures; + QSet<QGestureRecognizer*> newMaybeGestures; + QSet<QGestureRecognizer*> cancelledGestures; + QSet<QGestureRecognizer*> notGestures; + if (state == NotGesture || state == MaybeGesture) { + DEBUG() << "QGestureManager: current event processing state: " + << (state == NotGesture ? "NotGesture" : "MaybeGesture"); + + QSet<QGestureRecognizer*> stillMaybeGestures; + // try other recognizers. + foreach(QGestureRecognizer *r, recognizers) { + if (grabbedGestures.value(r->gestureType(), 0) <= 0) + continue; + QGestureRecognizer::Result result = r->filterEvent(event); + if (result == QGestureRecognizer::GestureStarted) { + DEBUG() << "QGestureManager: gesture started: " << r; + startedGestures << r; + } else if (result == QGestureRecognizer::GestureFinished) { + DEBUG() << "QGestureManager: gesture finished: " << r; + finishedGestures << r; + } else if (result == QGestureRecognizer::MaybeGesture) { + DEBUG() << "QGestureManager: maybe gesture: " << r; + newMaybeGestures << r; + } else if (result == QGestureRecognizer::NotGesture) { + // if it was maybe gesture, but isn't a gesture anymore. + DEBUG() << "QGestureManager: not gesture: " << r; + notGestures << r; + } + } + Q_ASSERT(activeGestures.isEmpty()); + activeGestures += startedGestures; + for(QMap<QGestureRecognizer*, int>::iterator it = maybeGestures.begin(); + it != maybeGestures.end();) { + QGestureRecognizer *r = it.key(); + if (startedGestures.contains(r) || finishedGestures.contains(r) || + notGestures.contains(r)) { + killTimer(it.value()); + it = maybeGestures.erase(it); + } else { + ++it; + } + } + foreach(QGestureRecognizer *r, newMaybeGestures) { + if (!maybeGestures.contains(r)) { + int timerId = startTimer(MaximumGestureRecognitionTimeout); + if (!timerId) + qWarning("QGestureManager: couldn't start timer!"); + maybeGestures.insert(r, timerId); + } + } + if (!finishedGestures.isEmpty() || !startedGestures.isEmpty()) { + // gesture found! + ret = true; + QSet<QGesture*> started; + foreach(QGestureRecognizer *r, finishedGestures) { + if (QGesture *gesture = r->getGesture()) { + started << gesture; + gesture->d_func()->singleshot = true; + } + } + foreach(QGestureRecognizer *r, startedGestures) { + if (QGesture *gesture = r->getGesture()) { + started << gesture; + gesture->d_func()->singleshot = false; + } + } + Q_ASSERT(!started.isEmpty()); + ret = sendGestureEvent(receiver, started, QSet<QGesture*>()); + + if (!activeGestures.isEmpty()) { + DEBUG() << "QGestureManager: new state = Gesture"; + state = Gesture; + } else if (!maybeGestures.isEmpty()) { + DEBUG() << "QGestureManager: new state = Maybe"; + state = MaybeGesture; + } else { + DEBUG() << "QGestureManager: new state = NotGesture"; + state = NotGesture; + } + } else if (!maybeGestures.isEmpty()) { + if (state != MaybeGesture) { + // We got a new set of events that look like a start + // of some gesture, so we switch to state MaybeGesture + // and wait for more events. + DEBUG() << "QGestureManager: new state = Maybe. Waiting for events"; + state = MaybeGesture; + // start gesture timer + } else { + // we still not sure if it is a gesture or not. + } + } else if (state == MaybeGesture) { + // last time we thought it looks like gesture, but now we + // know for sure that it isn't. + DEBUG() << "QGestureManager: new state = NotGesture"; + state = NotGesture; + } + foreach(QGestureRecognizer *r, finishedGestures) + r->reset(); + foreach(QGestureRecognizer *r, cancelledGestures) + r->reset(); + foreach(QGestureRecognizer *r, notGestures) + r->reset(); + } else if (state == Gesture) { + DEBUG() << "QGestureManager: current event processing state: Gesture"; + Q_ASSERT(!activeGestures.isEmpty()); + + foreach(QGestureRecognizer *r, recognizers) { + if (grabbedGestures.value(r->gestureType(), 0) <= 0) + continue; + QGestureRecognizer::Result result = r->filterEvent(event); + if (result == QGestureRecognizer::GestureStarted) { + DEBUG() << "QGestureManager: gesture started: " << r; + startedGestures << r; + } else if (result == QGestureRecognizer::GestureFinished) { + DEBUG() << "QGestureManager: gesture finished: " << r; + finishedGestures << r; + } else if (result == QGestureRecognizer::MaybeGesture) { + DEBUG() << "QGestureManager: maybe gesture: " << r; + newMaybeGestures << r; + } else if (result == QGestureRecognizer::NotGesture) { + // if it was an active gesture, but isn't a gesture anymore. + if (activeGestures.contains(r)) { + DEBUG() << "QGestureManager: cancelled gesture: " << r; + cancelledGestures << r; + } else { + DEBUG() << "QGestureManager: not gesture: " << r; + notGestures << r; + } + } + } + + for(QMap<QGestureRecognizer*, int>::iterator it = maybeGestures.begin(); + it != maybeGestures.end();) { + QGestureRecognizer *r = it.key(); + if (startedGestures.contains(r) || finishedGestures.contains(r) || + notGestures.contains(r)) { + killTimer(it.value()); + it = maybeGestures.erase(it); + } else { + ++it; + } + } + foreach(QGestureRecognizer *r, newMaybeGestures) { + if (!maybeGestures.contains(r)) { + int timerId = startTimer(MaximumGestureRecognitionTimeout); + if (!timerId) + qWarning("QGestureManager: couldn't start timer!"); + maybeGestures.insert(r, timerId); + } + } + QSet<QGesture*> started, updated; + if (!finishedGestures.isEmpty() || !startedGestures.isEmpty()) { + // another gesture found! + ret = true; + foreach(QGestureRecognizer *r, finishedGestures) { + if (QGesture *gesture = r->getGesture()) { + gesture->d_func()->singleshot = !activeGestures.contains(r); + if (gesture->d_func()->singleshot) + started << gesture; + else + updated << gesture; + } + } + foreach(QGestureRecognizer *r, startedGestures) { + if (QGesture *gesture = r->getGesture()) { + gesture->d_func()->singleshot = !activeGestures.contains(r); + if (gesture->d_func()->singleshot) + started << gesture; + else + updated << gesture; + } + } + } + activeGestures -= newMaybeGestures; + activeGestures -= cancelledGestures; + activeGestures += startedGestures; + activeGestures -= finishedGestures; + QSet<QString> cancelledGestureNames; + foreach(QGestureRecognizer *r, cancelledGestures) + cancelledGestureNames << r->gestureType(); + ret = sendGestureEvent(receiver, started, updated, cancelledGestureNames); + + foreach(QGestureRecognizer *r, finishedGestures) + r->reset(); + foreach(QGestureRecognizer *r, cancelledGestures) + r->reset(); + foreach(QGestureRecognizer *r, notGestures) + r->reset(); + if (!activeGestures.isEmpty()) { + // nothing changed, we are still handling a gesture + } else if (!maybeGestures.isEmpty()) { + DEBUG() << "QGestureManager: new state = Maybe. Waiting for events: " << maybeGestures; + state = MaybeGesture; + } else { + DEBUG() << "QGestureManager: new state = NotGesture"; + state = NotGesture; + } + } + + if (delayedPressTimer && state == Gesture) { + DEBUG() << "QGestureManager: gesture started. Forgetting about postponed mouse press event"; + killTimer(delayedPressTimer); + delayedPressTimer = 0; + lastMousePressReceiver = 0; + } else if (delayedPressTimer && (state == NotGesture || + event->type() == QEvent::MouseButtonRelease)) { + // not a gesture or released button too fast, so replay press + // event back. + DEBUG() << "QGestureManager: replaying mouse press event"; + QMap<QGestureRecognizer*, int>::const_iterator it = maybeGestures.begin(), + e = maybeGestures.end();; + for (; it != e; ++it) { + it.key()->reset(); + killTimer(it.value()); + } + maybeGestures.clear(); + state = NotGesture; + + if (lastMousePressReceiver) { + QApplication::sendEvent(lastMousePressReceiver, &lastMousePressEvent); + if (event->type() == QEvent::MouseButtonRelease) { + QMouseEvent *me = static_cast<QMouseEvent*>(event); + QMouseEvent move(QEvent::MouseMove, me->pos(), me->globalPos(), me->button(), + me->buttons(), me->modifiers()); + QApplication::sendEvent(lastMousePressReceiver, &move); + ret = false; + } + lastMousePressReceiver = 0; + } + lastMousePressReceiver = 0; + killTimer(delayedPressTimer); + delayedPressTimer = 0; + } else if (state == MaybeGesture && event->type() == QEvent::MouseButtonPress + && eventDeliveryDelayTimeout) { + // postpone the press event delivery until we know for + // sure whether it is a gesture. + DEBUG() << "QGestureManager: postponing mouse press event"; + QMouseEvent *me = static_cast<QMouseEvent*>(event); + lastMousePressReceiver = receiver; + lastMousePressEvent = QMouseEvent(QEvent::MouseButtonPress, me->pos(), + me->globalPos(), me->button(), + me->buttons(), me->modifiers()); + Q_ASSERT(delayedPressTimer == 0); + delayedPressTimer = startTimer(eventDeliveryDelayTimeout); + if (!delayedPressTimer) + qWarning("QGestureManager: couldn't start delayed press timer!"); + ret = true; + } + if (delayedPressTimer && event->type() == QEvent::MouseMove) { + // if we have postponed a mouse press event, postpone all + // subsequent mouse move events as well. + ret = true; + } + + lastPos = currentPos; + return ret; +} + +void QGestureManager::timerEvent(QTimerEvent *event) +{ + if (event->timerId() == delayedPressTimer) { + DEBUG() << "QGestureManager: replaying mouse press event due to timeout"; + // sanity checks + Q_ASSERT(state != Gesture); + + QMap<QGestureRecognizer*, int>::const_iterator it = maybeGestures.begin(), + e = maybeGestures.end();; + for (; it != e; ++it) { + it.key()->reset(); + killTimer(it.value()); + } + maybeGestures.clear(); + state = NotGesture; + + if (lastMousePressReceiver) { + // we neither received a mouse release event nor gesture + // started, so we replay stored mouse press event. + QApplication::sendEvent(lastMousePressReceiver, &lastMousePressEvent); + lastMousePressReceiver = 0; + } + + lastMousePressReceiver = 0; + killTimer(delayedPressTimer); + delayedPressTimer = 0; + } else { + // sanity checks, remove later + Q_ASSERT((state == Gesture && !activeGestures.isEmpty()) || (state != Gesture && activeGestures.isEmpty())); + + typedef QMap<QGestureRecognizer*, int> MaybeGestureMap; + for (MaybeGestureMap::iterator it = maybeGestures.begin(), e = maybeGestures.end(); + it != e; ++it) { + if (it.value() == event->timerId()) { + DEBUG() << "QGestureManager: gesture timeout."; + QGestureRecognizer *r = it.key(); + r->reset(); + maybeGestures.erase(it); + killTimer(event->timerId()); + break; + } + } + + if (state == MaybeGesture && maybeGestures.isEmpty()) { + DEBUG() << "QGestureManager: new state = NotGesture because of timeout"; + state = NotGesture; + } + } +} + +bool QGestureManager::inGestureMode() +{ + return state == Gesture; +} + +void QGestureManager::recognizerStateChanged(QGestureRecognizer::Result result) +{ + QGestureRecognizer *recognizer = qobject_cast<QGestureRecognizer*>(sender()); + if (!recognizer) + return; + if (qApp->d_func()->grabbedGestures.value(recognizer->gestureType(), 0) <= 0) { + recognizer->reset(); + return; + } + + switch (result) { + case QGestureRecognizer::GestureStarted: + case QGestureRecognizer::GestureFinished: { + if (result == QGestureRecognizer::GestureStarted) { + DEBUG() << "QGestureManager: gesture started: " << recognizer; + activeGestures << recognizer; + DEBUG() << "QGestureManager: new state = Gesture"; + state = Gesture; + } else { + DEBUG() << "QGestureManager: gesture finished: " << recognizer; + } + if (maybeGestures.contains(recognizer)) { + killTimer(maybeGestures.value(recognizer)); + maybeGestures.remove(recognizer); + } + QSet<QGesture*> gestures; + if (QGesture *gesture = recognizer->getGesture()) + gestures << gesture; + if(!gestures.isEmpty()) { + //FIXME: sendGestureEvent(targetWidget, gestures); + } + if (result == QGestureRecognizer::GestureFinished) + recognizer->reset(); + } + break; + case QGestureRecognizer::MaybeGesture: { + DEBUG() << "QGestureManager: maybe gesture: " << recognizer; + if (activeGestures.contains(recognizer)) { + //FIXME: sendGestureEvent(targetWidget, QSet<QGesture*>(), QSet<QString>() << recognizer->gestureType()); + } + if (!maybeGestures.contains(recognizer)) { + int timerId = startTimer(MaximumGestureRecognitionTimeout); + if (!timerId) + qWarning("QGestureManager: couldn't start timer!"); + maybeGestures.insert(recognizer, timerId); + } + } + break; + case QGestureRecognizer::NotGesture: + DEBUG() << "QGestureManager: not gesture: " << recognizer; + if (maybeGestures.contains(recognizer)) { + killTimer(maybeGestures.value(recognizer)); + maybeGestures.remove(recognizer); + } + recognizer->reset(); + break; + default: + Q_ASSERT(false); + } + + if (delayedPressTimer && state == Gesture) { + killTimer(delayedPressTimer); + delayedPressTimer = 0; + } +} + +bool QGestureManager::sendGestureEvent(QWidget *receiver, + const QSet<QGesture*> &startedGestures, + const QSet<QGesture*> &updatedGestures, + const QSet<QString> &cancelled) +{ + DEBUG() << "QGestureManager::sendGestureEvent: sending to" << receiver + << "gestures:" << startedGestures << "," << updatedGestures + << "cancelled:" << cancelled; + // grouping gesture objects by receiver widgets. + typedef QMap<QWidget*, QSet<QGesture*> > WidgetGesturesMap; + WidgetGesturesMap widgetGestures; + for(QSet<QGesture*>::const_iterator it = startedGestures.begin(), e = startedGestures.end(); + it != e; ++it) { + QGesture *g = *it; + QGesturePrivate *gd = g->d_func(); + if (receiver) { + // find the target widget + gd->widget = 0; + QWidget *w = receiver; + QPoint offset; + const QString gestureType = g->type(); + while (w) { + if (w->d_func()->hasGesture(gestureType)) + break; + if (w->isWindow()) { + w = 0; + break; + } + offset += w->pos(); + w = w->parentWidget(); + } + if (w && w != gd->widget) { + DEBUG() << "QGestureManager::sendGestureEvent:" << g << "propagating to widget" << w << "offset" << offset; + g->translate(offset); + } + gd->widget = w; + } + if (!gd->widget) { + DEBUG() << "QGestureManager: didn't find a widget to send gesture event (" + << g->type() << ") for tree:" << receiver; + // TODO: maybe we should reset gesture recognizers when nobody interested in its gestures. + continue; + } + widgetGestures[gd->widget].insert(g); + } + + QSet<QGesture*> ignoredGestures; + bool ret = false; + for(WidgetGesturesMap::const_iterator it = widgetGestures.begin(), e = widgetGestures.end(); + it != e; ++it) { + QWidget *receiver = it.key(); + Q_ASSERT(receiver != 0 /*should be taken care above*/); + QSet<QGesture*> gestures = it.value(); + // mark all gestures as ignored by default + for(QSet<QGesture*>::iterator it = gestures.begin(), e = gestures.end(); it != e; ++it) + (*it)->ignore(); + // TODO: send cancelled gesture event to the widget that received the original gesture! + QGestureEvent event(gestures, cancelled); + DEBUG() << "QGestureManager::sendGestureEvent: sending now to" << receiver + << "gestures" << gestures; + bool processed = qt_sendSpontaneousEvent(receiver, &event); + QSet<QGesture*> started = startedGestures & gestures; + DEBUG() << "QGestureManager::sendGestureEvent:" << + (event.isAccepted() ? "" : "not") << "all gestures were accepted"; + if (!started.isEmpty() && !(processed && event.isAccepted())) { + // there are started gestures events that weren't + // accepted, so propagating each gesture independently. + if (event.isAccepted()) { + foreach(QGesture *g, started) + g->accept(); + } + QSet<QGesture*>::const_iterator it = started.begin(), + e = started.end(); + for(; it != e; ++it) { + QGesture *g = *it; + if (processed && g->isAccepted()) { + ret = true; + continue; + } + // if it wasn't accepted, find the first parent widget + // that is subscribed to the gesture. + QGesturePrivate *gd = g->d_func(); + QWidget *w = gd->widget; + gd->widget = 0; + + if (w && !w->isWindow()) { + g->translate(w->pos()); + w = w->parentWidget(); + QPoint offset; + const QString gestureType = g->type(); + while (w) { + if (w->d_func()->hasGesture(gestureType)) { + DEBUG() << "QGestureManager::sendGestureEvent:" << receiver + << "didn't accept gesture" << g << "propagating to" << w; + ignoredGestures.insert(g); + gd->widget = w; + break; + } + if (w->isWindow()) { + w = 0; + break; + } + offset += w->pos(); + w = w->parentWidget(); + } + if (w) { + g->translate(offset); + } else { + DEBUG() << "QGestureManager::sendGestureEvent:" << receiver + << "didn't accept gesture" << g << "and nobody wants it"; + } + } + } + } + } + if (ignoredGestures.isEmpty()) + return ret; + // try to send all gestures that were ignored to the next parent + return sendGestureEvent(0, ignoredGestures, QSet<QGesture*>(), cancelled) || ret; +} + +int QGestureManager::eventDeliveryDelay() const +{ + return eventDeliveryDelayTimeout; +} + +void QGestureManager::setEventDeliveryDelay(int ms) +{ + eventDeliveryDelayTimeout = ms; +} + +int QGestureManager::makeGestureId(const QString &name) +{ + gestureIdMap[++lastGestureId] = name; + return lastGestureId; +} + +void QGestureManager::releaseGestureId(int gestureId) +{ + gestureIdMap.remove(gestureId); +} + +QString QGestureManager::gestureNameFromId(int gestureId) const +{ + return gestureIdMap.value(gestureId); +} + +QT_END_NAMESPACE + +#include "moc_qgesturemanager_p.cpp" + diff --git a/src/gui/kernel/qgesturemanager_p.h b/src/gui/kernel/qgesturemanager_p.h new file mode 100644 index 0000000..745feb3 --- /dev/null +++ b/src/gui/kernel/qgesturemanager_p.h @@ -0,0 +1,126 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the $MODULE$ of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QGESTUREMANAGER_P_H +#define QGESTUREMANAGER_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists for the convenience +// of other Qt classes. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include "qlist.h" +#include "qset.h" +#include "qevent.h" +#include "qbasictimer.h" +#include "qpointer.h" + +#include "qgesturerecognizer.h" + +QT_BEGIN_NAMESPACE + +class QWidget; +class Q_AUTOTEST_EXPORT QGestureManager : public QObject +{ + Q_OBJECT +public: + QGestureManager(QObject *parent); + + int eventDeliveryDelay() const; + void setEventDeliveryDelay(int ms); + + void addRecognizer(QGestureRecognizer *recognizer); + void removeRecognizer(QGestureRecognizer *recognizer); + + bool filterEvent(QWidget *receiver, QEvent *event); + bool inGestureMode(); + + int makeGestureId(const QString &name); + void releaseGestureId(int gestureId); + QString gestureNameFromId(int gestureId) const; + + // declared in qapplication.cpp + static QGestureManager* instance(); + + bool sendGestureEvent(QWidget *receiver, + const QSet<QGesture*> &startedGestures, + const QSet<QGesture*> &updatedGestures, + const QSet<QString> &cancelled = QSet<QString>()); + +protected: + void timerEvent(QTimerEvent *event); + +private slots: + void recognizerStateChanged(QGestureRecognizer::Result); + +private: + QSet<QGestureRecognizer*> activeGestures; + QMap<QGestureRecognizer*, int> maybeGestures; + QSet<QGestureRecognizer*> recognizers; + + QPoint lastPos; + + int eventDeliveryDelayTimeout; + int delayedPressTimer; + QPointer<QWidget> lastMousePressReceiver; + QMouseEvent lastMousePressEvent; + + QMap<int, QString> gestureIdMap; + int lastGestureId; + + enum State { + Gesture, + NotGesture, + MaybeGesture // that mean timers are up and waiting for some + // more events, and input events are handled by + // gesture recognizer explicitely + } state; +}; + +QT_END_NAMESPACE + +#endif // QGESTUREMANAGER_P_H diff --git a/src/gui/kernel/qgesturerecognizer.cpp b/src/gui/kernel/qgesturerecognizer.cpp new file mode 100644 index 0000000..879f557 --- /dev/null +++ b/src/gui/kernel/qgesturerecognizer.cpp @@ -0,0 +1,159 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the $MODULE$ of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qgesturerecognizer.h" +#include "qgesture.h" + +#include <private/qobject_p.h> +#include <private/qgesturerecognizer_p.h> + +QT_BEGIN_NAMESPACE + +QString qt_getStandardGestureTypeName(Qt::GestureType gestureType); + +/*! + \class QGestureRecognizer + \since 4.6 + + \brief The QGestureRecognizer class is the base class for + implementing custom gestures. + + This is a base class, to create a custom gesture type, you should + subclass it and implement its pure virtual functions. + + Usually gesture recognizer implements state machine, storing its + state internally in the recognizer object. The recognizer receives + input events through the \l{QGestureRecognizer::}{filterEvent()} + virtual function and decides whether the parsed event should + change the state of the recognizer - i.e. if the event starts or + ends a gesture or if it isn't related to gesture at all. +*/ + +/*! + \enum QGestureRecognizer::Result + \since 4.6 + + This enum type defines the state of the gesture recognizer. + + \value Ignore Gesture recognizer ignores the event. + + \value NotGesture Not a gesture. + + \value GestureStarted The continuous gesture has started. When the + recognizer is in this state, a \l{QGestureEvent}{gesture event} + containing QGesture objects returned by the + \l{QGestureRecognizer::}{getGesture()} will be sent to a widget. + + \value GestureFinished The gesture has ended. A + \l{QGestureEvent}{gesture event} will be sent to a widget. + + \value MaybeGesture Gesture recognizer hasn't decided yet if a + gesture has started, but it might start soon after the following + events are received by the recognizer. This means that gesture + manager shouldn't reset() the internal state of the gesture + recognizer. +*/ + +/*! \fn QGestureRecognizer::Result QGestureRecognizer::filterEvent(const QEvent *event) + + This is a pure virtual function that needs to be implemented in + subclasses. + + Parses input \a event and returns the result, which specifies if + the event sequence is a gesture or not. +*/ + +/*! \fn QGesture* QGestureRecognizer::getGesture() + + Returns a gesture object that will be send to the widget. This + function is called when the gesture recognizer changed its state + to QGestureRecognizer::GestureStarted or + QGestureRecognizer::GestureFinished. + + The returned QGesture object must point to the same object in a + single gesture sequence. + + The gesture object is owned by the recognizer itself. +*/ + +/*! \fn void QGestureRecognizer::reset() + + Resets the internal state of the gesture recognizer. +*/ + +/*! \fn void QGestureRecognizer::stateChanged(QGestureRecognizer::Result result) + + The gesture recognizer might emit the stateChanged() signal when + the gesture state changes asynchronously, i.e. without any event + being filtered through filterEvent(). +*/ + +QGestureRecognizerPrivate::QGestureRecognizerPrivate() + : gestureType(Qt::UnknownGesture) +{ +} + +/*! + Creates a new gesture recognizer object that handles gestures of + the specific \a gestureType as a child of \a parent. + + \sa QApplication::addGestureRecognizer(), + QApplication::removeGestureRecognizer(), +*/ +QGestureRecognizer::QGestureRecognizer(const QString &gestureType, QObject *parent) + : QObject(*new QGestureRecognizerPrivate, parent) +{ + Q_D(QGestureRecognizer); + d->customGestureType = gestureType; +} + +/*! + Returns the name of the gesture that is handled by the recognizer. +*/ +QString QGestureRecognizer::gestureType() const +{ + Q_D(const QGestureRecognizer); + if (d->gestureType == Qt::UnknownGesture) + return d->customGestureType; + return qt_getStandardGestureTypeName(d->gestureType); +} + +QT_END_NAMESPACE diff --git a/src/gui/kernel/qgesturerecognizer.h b/src/gui/kernel/qgesturerecognizer.h new file mode 100644 index 0000000..67d7949 --- /dev/null +++ b/src/gui/kernel/qgesturerecognizer.h @@ -0,0 +1,87 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the $MODULE$ of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QGESTURERECOGNIZER_H +#define QGESTURERECOGNIZER_H + +#include "qevent.h" +#include "qlist.h" +#include "qset.h" + +QT_BEGIN_NAMESPACE + +class QGesture; +class QGestureRecognizerPrivate; +class Q_GUI_EXPORT QGestureRecognizer : public QObject +{ + Q_OBJECT + Q_DECLARE_PRIVATE(QGestureRecognizer) + +public: + enum Result + { + Ignore, + NotGesture, + GestureStarted, //TODO: rename to just Gesture? + GestureFinished, + MaybeGesture + }; + + explicit QGestureRecognizer(const QString &gestureType, QObject *parent = 0); + + QString gestureType() const; + + virtual QGestureRecognizer::Result filterEvent(const QEvent* event) = 0; + virtual QGesture* getGesture() = 0; + virtual void reset() = 0; + +signals: + void stateChanged(QGestureRecognizer::Result result); + +private: + friend class QDoubleTapGestureRecognizer; + friend class QTapAndHoldGestureRecognizer; + friend class QGestureRecognizerPan; +}; + +QT_END_NAMESPACE + +#endif // QGESTURERECOGNIZER_P_H diff --git a/src/gui/kernel/qgesturerecognizer_p.h b/src/gui/kernel/qgesturerecognizer_p.h new file mode 100644 index 0000000..4d80b99 --- /dev/null +++ b/src/gui/kernel/qgesturerecognizer_p.h @@ -0,0 +1,72 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the $MODULE$ of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QGESTURERECOGNIZER_P_H +#define QGESTURERECOGNIZER_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists for the convenience +// of other Qt classes. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include <private/qobject_p.h> + +QT_BEGIN_NAMESPACE + +class QGestureRecognizerPrivate : public QObjectPrivate +{ +public: + QGestureRecognizerPrivate(); + +public: + Qt::GestureType gestureType; + QString customGestureType; +}; + +QT_END_NAMESPACE + +#endif // QGESTURERECOGNIZER_P_H diff --git a/src/gui/kernel/qgesturestandardrecognizers.cpp b/src/gui/kernel/qgesturestandardrecognizers.cpp new file mode 100644 index 0000000..f6b8b90 --- /dev/null +++ b/src/gui/kernel/qgesturestandardrecognizers.cpp @@ -0,0 +1,306 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the $MODULE$ of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qgesturestandardrecognizers_p.h" +#include "qgesture_p.h" +#include "qgesturerecognizer_p.h" + +// #define GESTURE_RECOGNIZER_DEBUG +#ifndef GESTURE_RECOGNIZER_DEBUG +# define DEBUG if (0) qDebug +#else +# define DEBUG qDebug +#endif + +QT_BEGIN_NAMESPACE + +QString qt_getStandardGestureTypeName(Qt::GestureType gestureType) +{ + switch (gestureType) { + case Qt::TapGesture: + return QLatin1String("__QTapGesture"); + case Qt::DoubleTapGesture: + return QLatin1String("__QDoubleTapGesture"); + case Qt::TrippleTapGesture: + return QLatin1String("__QTrippleTapGesture"); + case Qt::TapAndHoldGesture: + return QLatin1String("__QTapAndHoldGesture"); + case Qt::PanGesture: + return QLatin1String("__QPanGesture"); + case Qt::PinchGesture: + return QLatin1String("__QPinchGesture"); + case Qt::UnknownGesture: + break; + } + qFatal("QGestureRecognizer::gestureType: got an unhandled gesture type."); + return QLatin1String("__unknown_gesture"); +} + +// +// QGestureRecognizerPan +// + +QGestureRecognizerPan::QGestureRecognizerPan(QObject *parent) + : QGestureRecognizer(QString(), parent), + mousePressed(false), gestureState(Qt::NoGesture), + lastDirection(Qt::NoDirection), currentDirection(Qt::NoDirection) +{ + Q_D(QGestureRecognizer); + d->gestureType = Qt::PanGesture; +} + +QGestureRecognizer::Result QGestureRecognizerPan::filterEvent(const QEvent *event) +{ + if (event->type() == QEvent::MouseButtonPress) { + const QMouseEvent *ev = static_cast<const QMouseEvent*>(event); + if (currentDirection != Qt::NoDirection) { + DEBUG() << "Pan: MouseButtonPress: fail. another press during pan"; + reset(); + return QGestureRecognizer::NotGesture; + } + if (ev->button() != Qt::LeftButton) { + return QGestureRecognizer::NotGesture; + } + DEBUG() << "Pan: MouseButtonPress: maybe gesture started"; + mousePressed = true; + pressedPos = lastPos = currentPos = ev->pos(); + return QGestureRecognizer::MaybeGesture; + } else if (event->type() == QEvent::MouseButtonRelease) { + const QMouseEvent *ev = static_cast<const QMouseEvent*>(event); + if (mousePressed && currentDirection != Qt::NoDirection + && ev->button() == Qt::LeftButton) { + DEBUG() << "Pan: MouseButtonRelease: pan detected"; + gestureState = Qt::GestureFinished; + currentPos = ev->pos(); + internalReset(); + return QGestureRecognizer::GestureFinished; + } + DEBUG() << "Pan: MouseButtonRelease: some weird release detected, ignoring"; + reset(); + return QGestureRecognizer::NotGesture; + } else if (event->type() == QEvent::MouseMove) { + if (!mousePressed) + return QGestureRecognizer::NotGesture; + const QMouseEvent *ev = static_cast<const QMouseEvent*>(event); + lastPos = currentPos; + currentPos = ev->pos(); + Qt::DirectionType newDirection = + simpleRecognizer.addPosition(ev->pos()).direction; + DEBUG() << "Pan: MouseMove: simplerecognizer result = " << newDirection; + QGestureRecognizer::Result result = QGestureRecognizer::NotGesture; + if (currentDirection == Qt::NoDirection) { + if (newDirection == Qt::NoDirection) { + result = QGestureRecognizer::MaybeGesture; + } else { + result = QGestureRecognizer::GestureStarted; + gestureState = Qt::GestureStarted; + } + } else { + result = QGestureRecognizer::GestureStarted; + gestureState = Qt::GestureUpdated; + } + if (newDirection != Qt::NoDirection) { + if (currentDirection != newDirection) + lastDirection = currentDirection; + currentDirection = newDirection; + } + return result; + } + return QGestureRecognizer::Ignore; +} + +QGesture* QGestureRecognizerPan::getGesture() +{ + if (currentDirection == Qt::NoDirection) + return 0; + QPanningGesturePrivate *d = gesture.d_func(); + d->startPos = pressedPos; + d->lastPos = lastPos; + d->pos = currentPos; + d->hotSpot = pressedPos; + d->state = gestureState; + d->lastDirection = lastDirection; + d->direction = currentDirection; + + return &gesture; +} + +void QGestureRecognizerPan::reset() +{ + mousePressed = false; + lastDirection = Qt::NoDirection; + currentDirection = Qt::NoDirection; + gestureState = Qt::NoGesture; + diagonalRecognizer.reset(); + simpleRecognizer.reset(); +} + +void QGestureRecognizerPan::internalReset() +{ + mousePressed = false; + diagonalRecognizer.reset(); + simpleRecognizer.reset(); +} + + +// +// QDoubleTapGestureRecognizer +// +QDoubleTapGestureRecognizer::QDoubleTapGestureRecognizer(QObject *parent) + : QGestureRecognizer(QString(), parent), + gesture(0, qt_getStandardGestureTypeName(Qt::DoubleTapGesture)) +{ + Q_D(QGestureRecognizer); + d->gestureType = Qt::DoubleTapGesture; +} + +QGestureRecognizer::Result QDoubleTapGestureRecognizer::filterEvent(const QEvent *event) +{ + if (event->type() == QEvent::MouseButtonPress) { + const QMouseEvent *ev = static_cast<const QMouseEvent*>(event); + if (pressedPosition.isNull()) { + pressedPosition = ev->pos(); + return QGestureRecognizer::MaybeGesture; + } else if ((pressedPosition - ev->pos()).manhattanLength() < 10) { + return QGestureRecognizer::GestureFinished; + } + return QGestureRecognizer::NotGesture; + } else if (event->type() == QEvent::MouseButtonRelease) { + const QMouseEvent *ev = static_cast<const QMouseEvent*>(event); + if (!pressedPosition.isNull() && (pressedPosition - ev->pos()).manhattanLength() < 10) + return QGestureRecognizer::MaybeGesture; + return QGestureRecognizer::NotGesture; + } else if (event->type() == QEvent::MouseButtonDblClick) { + const QMouseEvent *ev = static_cast<const QMouseEvent*>(event); + pressedPosition = ev->pos(); + return QGestureRecognizer::GestureFinished; + } + return QGestureRecognizer::NotGesture; +} + +QGesture* QDoubleTapGestureRecognizer::getGesture() +{ + QGesturePrivate *d = gesture.d_func(); + d->startPos = pressedPosition; + d->lastPos = pressedPosition; + d->pos = pressedPosition; + d->hotSpot = pressedPosition; + d->state = Qt::GestureFinished; + return &gesture; +} + +void QDoubleTapGestureRecognizer::reset() +{ + pressedPosition = QPoint(); +} + +// +// QTapAndHoldGestureRecognizer +// +const int QTapAndHoldGestureRecognizer::iterationCount = 40; +const int QTapAndHoldGestureRecognizer::iterationTimeout = 50; + +QTapAndHoldGestureRecognizer::QTapAndHoldGestureRecognizer(QObject *parent) + : QGestureRecognizer(QString(), parent), + gesture(0, qt_getStandardGestureTypeName(Qt::TapAndHoldGesture)), + iteration(0) +{ + Q_D(QGestureRecognizer); + d->gestureType = Qt::TapAndHoldGesture; +} + +QGestureRecognizer::Result QTapAndHoldGestureRecognizer::filterEvent(const QEvent *event) +{ + if (event->type() == QEvent::MouseButtonPress) { + const QMouseEvent *ev = static_cast<const QMouseEvent*>(event); + if (timer.isActive()) + timer.stop(); + timer.start(QTapAndHoldGestureRecognizer::iterationTimeout, this); + pressedPosition = ev->pos(); + return QGestureRecognizer::MaybeGesture; + } else if (event->type() == QEvent::MouseMove) { + const QMouseEvent *ev = static_cast<const QMouseEvent*>(event); + if ((pressedPosition - ev->pos()).manhattanLength() < 15) + return QGestureRecognizer::GestureStarted; + else + return QGestureRecognizer::NotGesture; + } else if (event->type() == QEvent::MouseButtonRelease) { + timer.stop(); + return QGestureRecognizer::NotGesture; + } + return QGestureRecognizer::Ignore; +} + +void QTapAndHoldGestureRecognizer::timerEvent(QTimerEvent *event) +{ + if (event->timerId() != timer.timerId()) + return; + if (iteration == QTapAndHoldGestureRecognizer::iterationCount) { + timer.stop(); + emit stateChanged(QGestureRecognizer::GestureFinished); + } else { + emit stateChanged(QGestureRecognizer::GestureStarted); + } + ++iteration; +} + +QGesture* QTapAndHoldGestureRecognizer::getGesture() +{ + QGesturePrivate *d = gesture.d_func(); + d->startPos = pressedPosition; + d->lastPos = pressedPosition; + d->pos = pressedPosition; + d->hotSpot = pressedPosition; + if (iteration >= QTapAndHoldGestureRecognizer::iterationCount) + d->state = Qt::GestureFinished; + else + d->state = iteration == 0 ? Qt::GestureStarted : Qt::GestureUpdated; + return &gesture; +} + +void QTapAndHoldGestureRecognizer::reset() +{ + pressedPosition = QPoint(); + timer.stop(); + iteration = 0; +} + +QT_END_NAMESPACE diff --git a/src/gui/kernel/qgesturestandardrecognizers_p.h b/src/gui/kernel/qgesturestandardrecognizers_p.h new file mode 100644 index 0000000..81db3e6 --- /dev/null +++ b/src/gui/kernel/qgesturestandardrecognizers_p.h @@ -0,0 +1,130 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the $MODULE$ of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QGESTURESTANDARDRECOGNIZERS_P_H +#define QGESTURESTANDARDRECOGNIZERS_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists for the convenience +// of other Qt classes. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include "qevent.h" +#include "qbasictimer.h" +#include "qdebug.h" + +#include "qgesturerecognizer.h" +#include "private/qdirectionrecognizer_p.h" + +QT_BEGIN_NAMESPACE + +class QGestureRecognizerPan : public QGestureRecognizer +{ + Q_OBJECT +public: + QGestureRecognizerPan(QObject *parent); + + QGestureRecognizer::Result filterEvent(const QEvent *event); + QGesture* getGesture(); + void reset(); + +private: + void internalReset(); + + QPanningGesture gesture; + + QPoint pressedPos; + QPoint lastPos; + QPoint currentPos; + bool mousePressed; + Qt::GestureState gestureState; + Qt::DirectionType lastDirection; + Qt::DirectionType currentDirection; + QDirectionDiagonalRecognizer diagonalRecognizer; + QDirectionSimpleRecognizer simpleRecognizer; +}; + +class QDoubleTapGestureRecognizer : public QGestureRecognizer +{ + Q_OBJECT +public: + QDoubleTapGestureRecognizer(QObject *parent); + + QGestureRecognizer::Result filterEvent(const QEvent *event); + QGesture* getGesture(); + void reset(); + +private: + QGesture gesture; + QPoint pressedPosition; +}; + +class QTapAndHoldGestureRecognizer : public QGestureRecognizer +{ + Q_OBJECT +public: + QTapAndHoldGestureRecognizer(QObject *parent); + + QGestureRecognizer::Result filterEvent(const QEvent *event); + QGesture* getGesture(); + void reset(); + +protected: + void timerEvent(QTimerEvent *event); + +private: + QGesture gesture; + QPoint pressedPosition; + QBasicTimer timer; + int iteration; + static const int iterationCount; + static const int iterationTimeout; +}; + +QT_END_NAMESPACE + +#endif // QGESTURESTANDARDRECOGNIZERS_P_H diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp index e186557..4b2fed7 100644 --- a/src/gui/kernel/qwidget.cpp +++ b/src/gui/kernel/qwidget.cpp @@ -109,6 +109,7 @@ #include "private/qabstractscrollarea_p.h" #include "private/qgraphicssystem_p.h" +#include "private/qgesturemanager_p.h" // widget/widget data creation count //#define QWIDGET_EXTRA_DEBUG @@ -127,6 +128,8 @@ Q_GUI_EXPORT void qt_x11_set_global_double_buffer(bool enable) } #endif +QString qt_getStandardGestureTypeName(Qt::GestureType); + static inline bool qRectIntersects(const QRect &r1, const QRect &r2) { return (qMax(r1.left(), r2.left()) <= qMin(r1.right(), r2.right()) && @@ -7473,10 +7476,14 @@ bool QWidget::event(QEvent *event) case QEvent::MouseButtonRelease: case QEvent::MouseButtonDblClick: case QEvent::MouseMove: + case QEvent::TouchBegin: + case QEvent::TouchUpdate: + case QEvent::TouchEnd: case QEvent::ContextMenu: #ifndef QT_NO_WHEELEVENT case QEvent::Wheel: #endif + case QEvent::Gesture: return false; default: break; @@ -7872,6 +7879,9 @@ bool QWidget::event(QEvent *event) d->needWindowChange = false; break; #endif + case QEvent::Gesture: + event->ignore(); + break; #ifndef QT_NO_PROPERTIES case QEvent::DynamicPropertyChange: { const QByteArray &propName = static_cast<QDynamicPropertyChangeEvent *>(event)->propertyName(); @@ -10961,6 +10971,103 @@ QWindowSurface *QWidget::windowSurface() const return bs ? bs->windowSurface : 0; } +/*! + \since 4.6 + + Subscribes the widget to the specified \a gesture type. + + Returns the id of the gesture. + + \sa releaseGesture(), setGestureEnabled() +*/ +int QWidget::grabGesture(const QString &gesture) +{ + Q_D(QWidget); + int id = d->grabGesture(QGestureManager::instance()->makeGestureId(gesture)); + if (d->extra && d->extra->proxyWidget) + d->extra->proxyWidget->QGraphicsItem::d_ptr->grabGesture(id); + return id; +} + +int QWidgetPrivate::grabGesture(int gestureId) +{ + gestures << gestureId; + ++qApp->d_func()->grabbedGestures[QGestureManager::instance()->gestureNameFromId(gestureId)]; + return gestureId; +} + +bool QWidgetPrivate::releaseGesture(int gestureId) +{ + QApplicationPrivate *qAppPriv = qApp->d_func(); + if (gestures.contains(gestureId)) { + QString name = QGestureManager::instance()->gestureNameFromId(gestureId); + Q_ASSERT(qAppPriv->grabbedGestures[name] > 0); + --qAppPriv->grabbedGestures[name]; + gestures.remove(gestureId); + return true; + } + return false; +} + +bool QWidgetPrivate::hasGesture(const QString &name) const +{ + QGestureManager *gm = QGestureManager::instance(); + QSet<int>::const_iterator it = gestures.begin(), + e = gestures.end(); + for (; it != e; ++it) { + if (gm->gestureNameFromId(*it) == name) + return true; + } + return false; +} + +/*! + \since 4.6 + + Subscribes the widget to the specified \a gesture type. + + Returns the id of the gesture. + + \sa releaseGesture(), setGestureEnabled() +*/ +int QWidget::grabGesture(Qt::GestureType gesture) +{ + return grabGesture(qt_getStandardGestureTypeName(gesture)); +} + +/*! + \since 4.6 + + Unsubscribes the widget from a gesture, which is specified by the + \a gestureId. + + \sa grabGesture(), setGestureEnabled() +*/ +void QWidget::releaseGesture(int gestureId) +{ + Q_D(QWidget); + if (d->releaseGesture(gestureId)) { + if (d->extra && d->extra->proxyWidget) + d->extra->proxyWidget->QGraphicsItem::d_ptr->releaseGesture(gestureId); + QGestureManager::instance()->releaseGestureId(gestureId); + } +} + +/*! + \since 4.6 + + If \a enable is true, the gesture with the given \a gestureId is + enabled; otherwise the gesture is disabled. + + The id of the gesture is returned by the grabGesture(). + + \sa grabGesture(), releaseGesture() +*/ +void QWidget::setGestureEnabled(int gestureId, bool enable) +{ + //### +} + void QWidgetPrivate::getLayoutItemMargins(int *left, int *top, int *right, int *bottom) const { if (left) diff --git a/src/gui/kernel/qwidget.h b/src/gui/kernel/qwidget.h index 6703d26..80d4f3e 100644 --- a/src/gui/kernel/qwidget.h +++ b/src/gui/kernel/qwidget.h @@ -59,6 +59,8 @@ #include <QtGui/qevent.h> #endif +#include <QtGui/qgesture.h> + QT_BEGIN_HEADER QT_BEGIN_NAMESPACE @@ -90,6 +92,7 @@ class QDragLeaveEvent; class QDropEvent; class QShowEvent; class QHideEvent; +class QGestureEvent; class QInputContext; class QIcon; class QWindowSurface; @@ -610,6 +613,11 @@ public: void setWindowSurface(QWindowSurface *surface); QWindowSurface *windowSurface() const; + int grabGesture(const QString &gesture); + int grabGesture(Qt::GestureType gesture); + void releaseGesture(int gestureId); + void setGestureEnabled(int gestureId, bool enable = true); + Q_SIGNALS: void customContextMenuRequested(const QPoint &pos); @@ -745,6 +753,7 @@ private: friend bool isWidgetOpaque(const QWidget *); friend class QGLWidgetPrivate; #endif + friend class QGestureManager; #ifdef Q_WS_X11 friend void qt_net_update_user_time(QWidget *tlw, unsigned long timestamp); friend void qt_net_remove_user_time(QWidget *tlw); diff --git a/src/gui/kernel/qwidget_p.h b/src/gui/kernel/qwidget_p.h index bf4f091..b2ae75e 100644 --- a/src/gui/kernel/qwidget_p.h +++ b/src/gui/kernel/qwidget_p.h @@ -57,9 +57,11 @@ #include "private/qobject_p.h" #include "QtCore/qrect.h" #include "QtCore/qlocale.h" +#include "QtCore/qset.h" #include "QtGui/qregion.h" #include "QtGui/qsizepolicy.h" #include "QtGui/qstyle.h" +#include "QtGui/qevent.h" #ifdef Q_WS_WIN #include "QtCore/qt_windows.h" @@ -516,6 +518,11 @@ public: QList<QAction*> actions; #endif + QSet<int> gestures; + int grabGesture(int gestureId); + bool releaseGesture(int gestureId); + bool hasGesture(const QString &type) const; + // Bit fields. uint high_attributes[3]; // the low ones are in QWidget::widget_attributes QPalette::ColorRole fg_role : 8; diff --git a/src/gui/kernel/qwidget_win.cpp b/src/gui/kernel/qwidget_win.cpp index 0f341fd..d381cb2 100644 --- a/src/gui/kernel/qwidget_win.cpp +++ b/src/gui/kernel/qwidget_win.cpp @@ -497,6 +497,10 @@ void QWidgetPrivate::create_sys(WId window, bool initializeWindow, bool destroyO } } + // ### don't always register for touch events + if (id && QApplicationPrivate::RegisterTouchWindow && !desktop) + QApplicationPrivate::RegisterTouchWindow(id, 0); + q->setAttribute(Qt::WA_WState_Created); // accept move/resize events hd = 0; // no display context |