Long live Qt for S60!

1 files changed, 370 insertions, 0 deletions

diff --git a/src/gui/kernel/qdnd_s60.cpp b/src/gui/kernel/qdnd_s60.cpp
new file mode 100644
index 0000000..5b888f7
--- /dev/null
+++ b/src/gui/kernel/qdnd_s60.cpp
@@ -0,0 +1,370 @@
+/****************************************************************************
+**
+** Copyright (C) 2008 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.
+**
+** $TROLLTECH_DUAL_EMBEDDED_LICENSE$
+**
+****************************************************************************/
+
+#include "qapplication.h"
+
+#ifndef QT_NO_DRAGANDDROP
+
+#include "qwidget.h"
+#include "qdatetime.h"
+#include "qbitmap.h"
+#include "qcursor.h"
+#include "qevent.h"
+#include "qpainter.h"
+#include "qdnd_p.h"
+
+#include <COECNTRL.H>
+// pointer cursor
+#include <w32std.h>
+#include <gdi.h>
+QT_BEGIN_NAMESPACE
+
+QT_USE_NAMESPACE
+//### artistic impression of Symbians default DnD cursor ?
+
+static QPixmap *defaultPm = 0;
+static const int default_pm_hotx = -50;
+static const int default_pm_hoty = -50;
+static const char *const default_pm[] = {
+"13 9 3 1",
+".      c None",
+"       c #000000",
+"X      c #FFFFFF",
+"X X X X X X X",
+" X X X X X X ",
+"X ......... X",
+" X.........X ",
+"X ......... X",
+" X.........X ",
+"X ......... X",
+" X X X X X X ",
+"X X X X X X X",
+};
+//### actions need to be redefined for S60
+// Shift/Ctrl handling, and final drop status
+static Qt::DropAction global_accepted_action = Qt::MoveAction;
+static Qt::DropActions possible_actions = Qt::IgnoreAction;
+
+
+// static variables in place of a proper cross-process solution
+static QDrag *drag_object;
+static bool qt_symbian_dnd_dragging = false;
+
+
+static Qt::KeyboardModifiers oldstate;
+
+class QShapedPixmapWidget
+{
+public:
+    QShapedPixmapWidget(RWsSession aWsSession,RWindowTreeNode* aNode)
+    {
+     sprite = RWsSprite(aWsSession);     
+     cursorSprite.iBitmap = 0; 
+     cursorSprite.iMaskBitmap = 0;
+     cursorSprite.iInvertMask = EFalse;
+     cursorSprite.iOffset = TPoint(0,0);
+     cursorSprite.iInterval = TTimeIntervalMicroSeconds32(0);
+     cursorSprite.iDrawMode = CGraphicsContext::EDrawModePEN;
+     sprite.Construct(*aNode,TPoint(0,0), ESpriteNoShadows | ESpriteNoChildClip);
+     sprite.AppendMember(cursorSprite);
+     sprite.Activate();
+    }
+    ~QShapedPixmapWidget()
+    {
+        sprite.Close();
+        cursorSprite.iBitmap = 0;
+        delete cursorBitmap;
+        cursorBitmap = 0; //redundant...
+    }
+    void disableCursor()
+    {
+        cursorSprite.iBitmap = 0;
+        sprite.UpdateMember(0,cursorSprite);
+    }
+    void enableCursor()
+    {
+        cursorSprite.iBitmap = cursorBitmap;
+        sprite.UpdateMember(0,cursorSprite);
+    }
+    void setPixmap(QPixmap pm)
+    {
+        //### heaplock centralized.
+        QImage temp = pm.toImage();
+        QSize size = pm.size();
+        temp.bits();        
+        CFbsBitmap *curbm = new (ELeave) CFbsBitmap();
+        curbm->Create(TSize(size.width(),size.height()),EColor16MA);
+        curbm->LockHeap(ETrue);
+        memcpy((uchar*)curbm->DataAddress(),temp.bits(),temp.numBytes());
+        curbm->UnlockHeap(ETrue);
+        delete cursorSprite.iBitmap;
+        cursorSprite.iBitmap = curbm;
+        cursorBitmap = curbm;
+        sprite.UpdateMember(0,cursorSprite);
+    }
+    CFbsBitmap *cursorBitmap;
+    RWsPointerCursor pointerCursor;
+    RWsSprite sprite;
+    TSpriteMember cursorSprite;
+
+};
+
+
+static QShapedPixmapWidget *qt_symbian_dnd_deco = 0;
+
+void QDragManager::updatePixmap()
+{
+    if (qt_symbian_dnd_deco) {
+        QPixmap pm;
+        QPoint pm_hot(default_pm_hotx,default_pm_hoty);
+        if (drag_object) {
+            pm = drag_object->pixmap();
+            if (!pm.isNull())
+                pm_hot = drag_object->hotSpot();
+        }
+        if (pm.isNull()) {
+            if (!defaultPm)
+                defaultPm = new QPixmap(default_pm);
+            pm = *defaultPm;
+        }
+        qt_symbian_dnd_deco->setPixmap(pm);
+    }
+}
+
+void QDragManager::timerEvent(QTimerEvent *) { }
+
+void QDragManager::move(const QPoint&) {
+}
+
+void QDragManager::updateCursor()
+{
+}
+
+
+bool QDragManager::eventFilter(QObject *o, QEvent *e)
+{
+ if (beingCancelled) {
+        return false;
+    }
+    if (!o->isWidgetType())
+        return false;
+
+    switch(e->type()) {
+        case QEvent::MouseButtonPress:
+        {
+        }   
+        case QEvent::MouseMove:
+        {
+            if (!object) { //#### this should not happen
+                qWarning("QDragManager::eventFilter: No object");
+                return true;
+            }
+            QDragManager *manager = QDragManager::self();
+            QMimeData *dropData = manager->object ? manager->dragPrivate()->data : manager->dropData;
+            if (manager->object)
+                possible_actions =  manager->dragPrivate()->possible_actions;
+            else
+                possible_actions = Qt::IgnoreAction;
+
+            QMouseEvent *me = (QMouseEvent *)e;
+
+            if (me->buttons()) {
+                Qt::DropAction prevAction = global_accepted_action;
+                QWidget *cw = QApplication::widgetAt(me->globalPos());
+                // map the Coords relative to the window.
+                if (!cw)
+                    return true;
+                TPoint windowPos = cw->effectiveWinId()->PositionRelativeToScreen();
+                qt_symbian_dnd_deco->sprite.SetPosition(TPoint(me->globalX()- windowPos.iX,me->globalY()- windowPos.iY));                                
+
+                while (cw && !cw->acceptDrops() && !cw->isWindow())
+                    cw = cw->parentWidget();
+
+                if (object->target() != cw) {
+                    if (object->target()) {
+                        QDragLeaveEvent dle;
+                        QApplication::sendEvent(object->target(), &dle);
+                        willDrop = false;
+                        global_accepted_action = Qt::IgnoreAction;
+                        updateCursor();
+                        restoreCursor = true;
+                        object->d_func()->target = 0;
+                    }
+                    if (cw && cw->acceptDrops()) {
+                        object->d_func()->target = cw;
+                        QDragEnterEvent dee(cw->mapFromGlobal(me->globalPos()), possible_actions, dropData,
+                                            me->buttons(), me->modifiers());
+                        QApplication::sendEvent(object->target(), &dee);
+                        willDrop = dee.isAccepted() && dee.dropAction() != Qt::IgnoreAction;
+                        global_accepted_action = willDrop ? dee.dropAction() : Qt::IgnoreAction;
+                        updateCursor();
+                        restoreCursor = true;
+                    }
+                } else if (cw) {
+                    QDragMoveEvent dme(cw->mapFromGlobal(me->globalPos()), possible_actions, dropData,
+                                       me->buttons(), me->modifiers());
+                    if (global_accepted_action != Qt::IgnoreAction) {
+                        dme.setDropAction(global_accepted_action);
+                        dme.accept();
+                    }
+                    QApplication::sendEvent(cw, &dme);
+                    willDrop = dme.isAccepted();
+                    global_accepted_action = willDrop ? dme.dropAction() : Qt::IgnoreAction;
+                    updatePixmap();
+                    updateCursor();
+                }
+                if (global_accepted_action != prevAction)
+                    emitActionChanged(global_accepted_action);
+            }
+            return true; // Eat all mouse events
+        }
+
+        case QEvent::MouseButtonRelease:
+        {
+            qApp->removeEventFilter(this);
+            if (restoreCursor) {
+                qt_symbian_dnd_deco->disableCursor();
+                willDrop = false;
+                restoreCursor = false;
+            }
+            if (object && object->target()) {
+
+                QMouseEvent *me = (QMouseEvent *)e;
+
+                QDragManager *manager = QDragManager::self();
+                QMimeData *dropData = manager->object ? manager->dragPrivate()->data : manager->dropData;
+
+                QDropEvent de(object->target()->mapFromGlobal(me->globalPos()), possible_actions, dropData,
+                              me->buttons(), me->modifiers());
+                QApplication::sendEvent(object->target(), &de);
+                if (de.isAccepted())
+                    global_accepted_action = de.dropAction();
+                else
+                    global_accepted_action = Qt::IgnoreAction;
+
+                if (object)
+                    object->deleteLater();
+                drag_object = object = 0;
+            }
+            eventLoop->exit();
+            return true; // Eat all mouse events
+        }
+
+        default:
+             break;
+    }
+    return false;
+}
+
+Qt::DropAction QDragManager::drag(QDrag *o)
+{
+    Q_ASSERT(!qt_symbian_dnd_dragging);
+    if (object == o || !o || !o->source())
+         return Qt::IgnoreAction;
+
+    if (object) {
+        cancel();
+        qApp->removeEventFilter(this);
+        beingCancelled = false;
+    }
+
+    object = drag_object = o;
+    RWsSession winSession = o->source()->effectiveWinId()->ControlEnv()->WsSession();
+    Q_ASSERT(!qt_symbian_dnd_deco);
+    qt_symbian_dnd_deco = new QShapedPixmapWidget(winSession, o->source()->effectiveWinId()->DrawableWindow());
+
+    oldstate = Qt::NoModifier; // #### Should use state that caused the drag
+    willDrop = false;
+    updatePixmap();
+    updateCursor();
+    restoreCursor = true;
+
+    object->d_func()->target = 0;
+    TPoint windowPos = source()->effectiveWinId()->PositionRelativeToScreen();
+    qt_symbian_dnd_deco->sprite.SetPosition(TPoint(QCursor::pos().x()- windowPos.iX ,QCursor::pos().y() - windowPos.iY));
+    
+    QPoint hotspot = drag_object->hotSpot();
+    qt_symbian_dnd_deco->cursorSprite.iOffset = TPoint(- hotspot.x(),- hotspot.y());
+    qt_symbian_dnd_deco->sprite.UpdateMember(0,qt_symbian_dnd_deco->cursorSprite);
+
+    qApp->installEventFilter(this);
+
+    global_accepted_action = Qt::MoveAction;
+    qt_symbian_dnd_dragging = true;
+
+    eventLoop = new QEventLoop;
+    // block
+    (void) eventLoop->exec(QEventLoop::AllEvents);
+    delete eventLoop;
+    eventLoop = 0;
+
+    delete qt_symbian_dnd_deco;
+    qt_symbian_dnd_deco = 0;
+    qt_symbian_dnd_dragging = false;
+
+
+    return global_accepted_action;
+}
+
+
+void QDragManager::cancel(bool deleteSource)
+{
+    beingCancelled = true;
+
+    if (object->target()) {
+        QDragLeaveEvent dle;
+        QApplication::sendEvent(object->target(), &dle);
+    }
+
+    if (drag_object) {
+        if (deleteSource)
+            object->deleteLater();
+        drag_object = object = 0;
+    }
+
+    delete qt_symbian_dnd_deco;
+    qt_symbian_dnd_deco = 0;
+
+    global_accepted_action = Qt::IgnoreAction;
+}
+
+
+void QDragManager::drop()
+{
+}
+
+QVariant QDropData::retrieveData_sys(const QString &mimetype, QVariant::Type type) const
+{
+    if (!drag_object)
+        return QVariant();
+    QByteArray data =  drag_object->mimeData()->data(mimetype);
+    if (type == QVariant::String)
+        return QString::fromUtf8(data);
+    return data;
+}
+
+bool QDropData::hasFormat_sys(const QString &format) const
+{
+    return formats().contains(format);
+}
+
+QStringList QDropData::formats_sys() const
+{
+    if (drag_object)
+        return drag_object->mimeData()->formats();
+    return QStringList();
+}
+
+
+#endif // QT_NO_DRAGANDDROP
+
+
+QT_END_NAMESPACE