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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <private/qcursor_p.h>
#include <private/qwidget_p.h>
#include <private/qapplication_p.h>
#include <coecntrl.h>
#include <qcursor.h>
#include <private/qt_s60_p.h>
#include <qbitmap.h>
#include <w32std.h>
#include <qapplication.h>
#include <qwidget.h>
QT_BEGIN_NAMESPACE
#ifndef QT_NO_CURSOR
static QCursor cursorSprite;
static int cursorSpriteVisible;
#endif
//pos and setpos are required whether cursors are configured or not.
QPoint QCursor::pos()
{
return S60->lastCursorPos;
}
void QCursor::setPos(int x, int y)
{
//clip to screen size (window server allows a sprite hotspot to be outside the screen)
if (x < 0)
x=0;
else if (x >= S60->screenWidthInPixels)
x = S60->screenWidthInPixels - 1;
if (y < 0)
y = 0;
else if (y >= S60->screenHeightInPixels)
y = S60->screenHeightInPixels - 1;
#ifndef QT_NO_CURSOR
#ifndef Q_SYMBIAN_FIXED_POINTER_CURSORS
if (S60->brokenPointerCursors && cursorSpriteVisible)
cursorSprite.d->scurs.SetPosition(TPoint(x,y));
else
#endif
S60->wsSession().SetPointerCursorPosition(TPoint(x, y));
#endif
S60->lastCursorPos = QPoint(x, y);
//send a fake mouse move event, so that enter/leave events go to the widget hierarchy
QWidget *w = QApplication::topLevelAt(S60->lastCursorPos);
if (w) {
CCoeControl* ctrl = w->effectiveWinId();
TPoint epos(x, y);
TPoint cpos = epos - ctrl->PositionRelativeToScreen();
TPointerEvent fakeEvent;
fakeEvent.iType = TPointerEvent::EMove;
fakeEvent.iModifiers = 0U;
fakeEvent.iPosition = cpos;
fakeEvent.iParentPosition = epos;
ctrl->HandlePointerEventL(fakeEvent);
}
}
#ifndef QT_NO_CURSOR
/*
* Request cursor to be turned on or off.
* Reference counted, so 2 on + 1 off = on, for example
*/
void qt_symbian_set_cursor_visible(bool visible) {
if (visible)
cursorSpriteVisible++;
else
cursorSpriteVisible--;
Q_ASSERT(cursorSpriteVisible >=0);
if (cursorSpriteVisible && !S60->mouseInteractionEnabled) {
#ifndef Q_SYMBIAN_FIXED_POINTER_CURSORS
if (S60->brokenPointerCursors)
qt_symbian_show_pointer_sprite();
else
#endif
S60->wsSession().SetPointerCursorMode(EPointerCursorNormal);
} else if (!cursorSpriteVisible && S60->mouseInteractionEnabled) {
#ifndef Q_SYMBIAN_FIXED_POINTER_CURSORS
if (S60->brokenPointerCursors)
qt_symbian_hide_pointer_sprite();
else
#endif
S60->wsSession().SetPointerCursorMode(EPointerCursorNone);
}
S60->mouseInteractionEnabled = ((cursorSpriteVisible > 0) ? true : false);
}
/*
* Check if the cursor is on or off
*/
bool qt_symbian_is_cursor_visible() {
return S60->mouseInteractionEnabled;
}
QCursorData::QCursorData(Qt::CursorShape s) :
cshape(s), bm(0), bmm(0), hx(0), hy(0), pcurs()
{
ref = 1;
}
QCursorData::~QCursorData()
{
for(int i=0;i<nativeSpriteMembers.Count();i++) {
delete nativeSpriteMembers[i]->iBitmap;
delete nativeSpriteMembers[i]->iMaskBitmap;
}
nativeSpriteMembers.ResetAndDestroy();
pcurs.Close();
delete bm;
delete bmm;
}
/* Create a bitmap cursor, this is called by public constructors in the
* generic QCursor code.
*/
QCursorData *QCursorData::setBitmap(const QBitmap &bitmap, const QBitmap &mask, int hotX, int hotY)
{
if (!QCursorData::initialized)
QCursorData::initialize();
if (bitmap.depth() != 1 || mask.depth() != 1 || bitmap.size() != mask.size()) {
qWarning("QCursor: Cannot create bitmap cursor; invalid bitmap(s)");
QCursorData *c = qt_cursorTable[0];
c->ref.ref();
return c;
}
QCursorData *d = new QCursorData;
d->bm = new QBitmap(bitmap);
d->bmm = new QBitmap(mask);
d->cshape = Qt::BitmapCursor;
d->hx = hotX >= 0 ? hotX : bitmap.width() / 2;
d->hy = hotY >= 0 ? hotY : bitmap.height() / 2;
return d;
}
/*
* returns an opaque native handle to a cursor.
* It happens to be the address of the native handle, as window server handles
* are not POD types. Note there is no QCursor(HANDLE) constructor on Symbian,
* Mac or QWS.
*/
Qt::HANDLE QCursor::handle() const
{
if (d->pcurs.WsHandle())
return reinterpret_cast<Qt::HANDLE> (&(d->pcurs));
#ifdef Q_SYMBIAN_HAS_SYSTEM_CURSORS
// don't construct shape cursors, QApplication_s60 will use the system cursor instead
if (!(d->bm))
return 0;
#endif
d->pcurs = RWsPointerCursor(S60->wsSession());
d->pcurs.Construct(0);
d->constructCursorSprite(d->pcurs);
d->pcurs.Activate();
return reinterpret_cast<Qt::HANDLE> (&(d->pcurs));
}
#ifndef Q_SYMBIAN_HAS_SYSTEM_CURSORS
/*
* Loads a single cursor shape from resources and appends it to a native sprite.
* Animated cursors (e.g. the busy cursor) have multiple members.
*/
void QCursorData::loadShapeFromResource(RWsSpriteBase& target, QString resource, int hx, int hy, int interval)
{
QPixmap pix;
CFbsBitmap* native;
QScopedPointer<TSpriteMember> member(new TSpriteMember);
member->iInterval = interval;
member->iInvertMask = false;
member->iMaskBitmap = 0; // all shapes are RGBA
member->iDrawMode = CGraphicsContext::EDrawModePEN;
member->iOffset = TPoint(-hx, -hy);
QString res(QLatin1String(":/trolltech/symbian/cursors/images/%1.png"));
pix.load(res.arg(resource));
native = pix.toSymbianCFbsBitmap();
member->iBitmap = native;
qt_symbian_throwIfError(nativeSpriteMembers.Append(member.data()));
target.AppendMember(*(member.take()));
}
//TODO: after 4.6, connect with style & skins?
/*
* Constructs the native cursor from resources compiled into QtGui
* This is needed only when the platform doesn't have system cursors.
*
* System cursors are higher performance, since they are constructed once
* and shared by all applications by specifying the shape number.
* Due to symbian platform security considerations, and the fact most
* existing phones have a broken RWsPointerCursor, system cursors are not
* being used.
*/
void QCursorData::constructShapeSprite(RWsSpriteBase& target)
{
int i;
switch (cshape) {
default:
qWarning("QCursorData::constructShapeSprite unknown shape %d", cshape);
//fall through and give arrow cursor
case Qt::ArrowCursor:
loadShapeFromResource(target, QLatin1String("pointer"), 1, 1);
break;
case Qt::UpArrowCursor:
loadShapeFromResource(target, QLatin1String("uparrow"), 4, 0);
break;
case Qt::CrossCursor:
loadShapeFromResource(target, QLatin1String("cross"), 7, 7);
break;
case Qt::WaitCursor:
for (i = 1; i <= 12; i++) {
loadShapeFromResource(target, QString(QLatin1String("wait%1")).arg(i), 7, 7, 1000000);
}
break;
case Qt::IBeamCursor:
loadShapeFromResource(target, QLatin1String("ibeam"), 3, 10);
break;
case Qt::SizeVerCursor:
loadShapeFromResource(target, QLatin1String("sizever"), 4, 8);
break;
case Qt::SizeHorCursor:
loadShapeFromResource(target, QLatin1String("sizehor"), 8, 4);
break;
case Qt::SizeBDiagCursor:
loadShapeFromResource(target, QLatin1String("sizebdiag"), 8, 8);
break;
case Qt::SizeFDiagCursor:
loadShapeFromResource(target, QLatin1String("sizefdiag"), 8, 8);
break;
case Qt::SizeAllCursor:
loadShapeFromResource(target, QLatin1String("sizeall"), 7, 7);
break;
case Qt::BlankCursor:
loadShapeFromResource(target, QLatin1String("blank"), 0, 0);
break;
case Qt::SplitVCursor:
loadShapeFromResource(target, QLatin1String("splitv"), 7, 7);
break;
case Qt::SplitHCursor:
loadShapeFromResource(target, QLatin1String("splith"), 7, 7);
break;
case Qt::PointingHandCursor:
loadShapeFromResource(target, QLatin1String("handpoint"), 5, 0);
break;
case Qt::ForbiddenCursor:
loadShapeFromResource(target, QLatin1String("forbidden"), 7, 7);
break;
case Qt::WhatsThisCursor:
loadShapeFromResource(target, QLatin1String("whatsthis"), 1, 1);
break;
case Qt::BusyCursor:
loadShapeFromResource(target, QLatin1String("busy3"), 1, 1, 1000000);
loadShapeFromResource(target, QLatin1String("busy6"), 1, 1, 1000000);
loadShapeFromResource(target, QLatin1String("busy9"), 1, 1, 1000000);
loadShapeFromResource(target, QLatin1String("busy12"), 1, 1, 1000000);
break;
case Qt::OpenHandCursor:
loadShapeFromResource(target, QLatin1String("openhand"), 7, 7);
break;
case Qt::ClosedHandCursor:
loadShapeFromResource(target, QLatin1String("closehand"), 7, 7);
break;
}
}
#endif
/*
* Common code between the sprite workaround and standard modes of operation.
* RWsSpriteBase is the base class for both RWsSprite and RWsPointerCursor.
* It is called from both handle() and qt_s60_show_pointer_sprite()
*/
void QCursorData::constructCursorSprite(RWsSpriteBase& target)
{
int count = nativeSpriteMembers.Count();
if (count) {
// already constructed
for (int i = 0; i < count; i++)
target.AppendMember(*(nativeSpriteMembers[i]));
return;
}
if (pixmap.isNull() && !bm) {
#ifndef Q_SYMBIAN_HAS_SYSTEM_CURSORS
//shape cursor
constructShapeSprite(target);
#endif
return;
}
QScopedPointer<TSpriteMember> member(new TSpriteMember);
if (pixmap.isNull()) {
//construct mono cursor
member->iBitmap = bm->toSymbianCFbsBitmap();
member->iMaskBitmap = bmm->toSymbianCFbsBitmap();
}
else {
//construct normal cursor
member->iBitmap = pixmap.toSymbianCFbsBitmap();
if (pixmap.hasAlphaChannel()) {
member->iMaskBitmap = 0; //use alpha blending
}
else if (pixmap.hasAlpha()) {
member->iMaskBitmap = pixmap.mask().toSymbianCFbsBitmap();
}
else {
member->iMaskBitmap = 0; //opaque rectangle cursor (due to EDrawModePEN)
}
}
member->iDrawMode = CGraphicsContext::EDrawModePEN;
member->iInvertMask = EFalse;
member->iInterval = 0;
member->iOffset = TPoint(-(hx), -(hy)); //Symbian hotspot coordinates are negative
qt_symbian_throwIfError(nativeSpriteMembers.Append(member.data()));
target.AppendMember(*(member.take()));
}
/*
* shows the pointer sprite by constructing a native handle, and registering
* it with the window server.
* Only used when the sprite workaround is in use.
*/
void qt_symbian_show_pointer_sprite()
{
if (cursorSprite.d) {
if (cursorSprite.d->scurs.WsHandle())
cursorSprite.d->scurs.Close();
} else {
cursorSprite = QCursor(Qt::ArrowCursor);
}
cursorSprite.d->scurs = RWsSprite(S60->wsSession());
QPoint pos = QCursor::pos();
cursorSprite.d->scurs.Construct(S60->windowGroup(), TPoint(pos.x(), pos.y()), ESpriteNoChildClip | ESpriteNoShadows);
cursorSprite.d->constructCursorSprite(cursorSprite.d->scurs);
cursorSprite.d->scurs.Activate();
}
/*
* hides the pointer sprite by closing the native handle.
* Only used when the sprite workaround is in use.
*/
void qt_symbian_hide_pointer_sprite()
{
if (cursorSprite.d) {
cursorSprite.d->scurs.Close();
}
}
/*
* Changes the cursor sprite to the cursor specified.
* Only used when the sprite workaround is in use.
*/
void qt_symbian_set_pointer_sprite(const QCursor& cursor)
{
if (S60->mouseInteractionEnabled)
qt_symbian_hide_pointer_sprite();
cursorSprite = cursor;
if (S60->mouseInteractionEnabled)
qt_symbian_show_pointer_sprite();
}
/*
* When using sprites as a workaround on phones that have a broken
* RWsPointerCursor, this function is called in response to pointer events
* and when QCursor::setPos() is called.
* Performance is worse than a real pointer cursor, due to extra context
* switches vs. the window server moving the cursor by itself.
*/
void qt_symbian_move_cursor_sprite()
{
if (S60->mouseInteractionEnabled) {
cursorSprite.d->scurs.SetPosition(TPoint(S60->lastCursorPos.x(), S60->lastCursorPos.y()));
}
}
/*
* Translate from Qt::CursorShape to OS system pointer cursor list index.
* Currently we control the implementation of the system pointer cursor list,
* so this function is trivial. That may not always be the case.
*/
TInt qt_symbian_translate_cursor_shape(Qt::CursorShape shape)
{
return (TInt) shape;
}
/*
Internal function called from QWidget::setCursor()
force is true if this function is called from dispatchEnterLeave, it means that the
mouse is actually directly under this widget.
*/
void qt_symbian_set_cursor(QWidget *w, bool force)
{
static QPointer<QWidget> lastUnderMouse = 0;
if (force) {
lastUnderMouse = w;
}
else if (w->testAttribute(Qt::WA_WState_Created) && lastUnderMouse
&& lastUnderMouse->effectiveWinId() == w->effectiveWinId()) {
w = lastUnderMouse;
}
if (!S60->curWin && w && w->internalWinId())
return;
QWidget* cW = w && !w->internalWinId() ? w : QWidget::find(S60->curWin);
if (!cW || cW->window() != w->window() || !cW->isVisible() || !cW->underMouse()
|| QApplication::overrideCursor())
return;
#ifndef Q_SYMBIAN_FIXED_POINTER_CURSORS
if (S60->brokenPointerCursors)
qt_symbian_set_pointer_sprite(cW->cursor());
else
#endif
qt_symbian_setWindowCursor(cW->cursor(), w->effectiveWinId());
}
/*
* Makes the specified cursor appear above a specific native window group
* Called from QSymbianControl and QApplication::restoreOverrideCursor
*
* Window server is needed for this, so there is no equivalent when using
* the sprite workaround.
*/
void qt_symbian_setWindowGroupCursor(const QCursor &cursor, RWindowTreeNode &node)
{
Qt::HANDLE handle = cursor.handle();
if (handle) {
RWsPointerCursor *pcurs = reinterpret_cast<RWsPointerCursor *> (handle);
node.SetCustomPointerCursor(*pcurs);
} else
#ifdef Q_SYMBIAN_HAS_SYSTEM_CURSORS
{
TInt shape = qt_symbian_translate_cursor_shape(cursor.shape());
node.SetPointerCursor(shape);
}
#else
qWarning("qt_s60_setWindowGroupCursor - null handle");
#endif
}
/*
* Makes the specified cursor appear above a specific native window
* Called from QSymbianControl and QApplication::restoreOverrideCursor
*
* Window server is needed for this, so there is no equivalent when using
* the sprite workaround.
*/
void qt_symbian_setWindowCursor(const QCursor &cursor, const CCoeControl* wid)
{
//find the window for this control
while (!wid->OwnsWindow()) {
wid = wid->Parent();
if (!wid)
return;
}
RWindowTreeNode *node = wid->DrawableWindow();
qt_symbian_setWindowGroupCursor(cursor, *node);
}
/*
* Makes the specified cursor appear everywhere.
* Called from QApplication::setOverrideCursor
*/
void qt_symbian_setGlobalCursor(const QCursor &cursor)
{
#ifndef Q_SYMBIAN_FIXED_POINTER_CURSORS
if (S60->brokenPointerCursors) {
qt_symbian_set_pointer_sprite(cursor);
} else
#endif
{
//because of the internals of window server, we need to force the cursor
//to be set in all child windows too, otherwise when the cursor is over
//the child window it may show a widget cursor or arrow cursor instead,
//depending on construction order.
QListIterator<WId> iter(QWidgetPrivate::mapper->uniqueKeys());
while(iter.hasNext())
{
CCoeControl *ctrl = iter.next();
if(ctrl->OwnsWindow()) {
RWindowTreeNode *node = ctrl->DrawableWindow();
qt_symbian_setWindowGroupCursor(cursor, *node);
}
}
}
}
QT_END_NAMESPACE
#endif // QT_NO_CURSOR
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