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-rw-r--r--src/widgets/widgets/qwidgetresizehandler.cpp106
1 files changed, 28 insertions, 78 deletions
diff --git a/src/widgets/widgets/qwidgetresizehandler.cpp b/src/widgets/widgets/qwidgetresizehandler.cpp
index 9dbba12aba..43aa4c7988 100644
--- a/src/widgets/widgets/qwidgetresizehandler.cpp
+++ b/src/widgets/widgets/qwidgetresizehandler.cpp
@@ -58,46 +58,37 @@ QT_BEGIN_NAMESPACE
static bool resizeHorizontalDirectionFixed = false;
static bool resizeVerticalDirectionFixed = false;
-// ### fixme: Qt 6: No longer export QWidgetResizeHandler and remove "Move"
-// functionality. Currently, only the resize functionality is used by QDockWidget.
-// Historically, the class was used in Qt 3's QWorkspace (predecessor to QMdiArea).
-
QWidgetResizeHandler::QWidgetResizeHandler(QWidget *parent, QWidget *cw)
: QObject(parent), widget(parent), childWidget(cw ? cw : parent),
- fw(0), extrahei(0), buttonDown(false), moveResizeMode(false), sizeprotect(true), movingEnabled(true)
+ fw(0), extrahei(0), buttonDown(false), active(false)
{
mode = Nowhere;
widget->setMouseTracking(true);
QFrame *frame = qobject_cast<QFrame*>(widget);
range = frame ? frame->frameWidth() : RANGE;
range = qMax(RANGE, range);
- activeForMove = activeForResize = true;
+ enabled = true;
widget->installEventFilter(this);
}
-void QWidgetResizeHandler::setActive(Action ac, bool b)
+void QWidgetResizeHandler::setEnabled(bool b)
{
- if (ac & Move)
- activeForMove = b;
- if (ac & Resize)
- activeForResize = b;
+ if (b == enabled)
+ return;
- if (!isActive())
+ enabled = b;
+ if (!enabled)
setMouseCursor(Nowhere);
}
-bool QWidgetResizeHandler::isActive(Action ac) const
+bool QWidgetResizeHandler::isEnabled() const
{
- bool b = false;
- if (ac & Move) b = activeForMove;
- if (ac & Resize) b |= activeForResize;
-
- return b;
+ return enabled;
}
bool QWidgetResizeHandler::eventFilter(QObject *o, QEvent *ee)
{
- if (!isActive()
+ if (!isEnabled()
|| (ee->type() != QEvent::MouseButtonPress
&& ee->type() != QEvent::MouseButtonRelease
&& ee->type() != QEvent::MouseMove
@@ -126,35 +117,24 @@ bool QWidgetResizeHandler::eventFilter(QObject *o, QEvent *ee)
if (e->button() == Qt::LeftButton) {
buttonDown = false;
emit activate();
- bool me = movingEnabled;
- movingEnabled = (me && o == widget);
mouseMoveEvent(e);
- movingEnabled = me;
buttonDown = true;
moveOffset = widget->mapFromGlobal(e->globalPos());
invertedMoveOffset = widget->rect().bottomRight() - moveOffset;
- if (mode == Center) {
- if (movingEnabled)
- return true;
- } else {
+ if (mode != Center)
return true;
- }
}
} break;
case QEvent::MouseButtonRelease:
if (w->isMaximized())
break;
if (static_cast<QMouseEvent *>(ee)->button() == Qt::LeftButton) {
- moveResizeMode = false;
+ active = false;
buttonDown = false;
widget->releaseMouse();
widget->releaseKeyboard();
- if (mode == Center) {
- if (movingEnabled)
- return true;
- } else {
+ if (mode != Center)
return true;
- }
}
break;
case QEvent::MouseMove: {
@@ -162,16 +142,9 @@ bool QWidgetResizeHandler::eventFilter(QObject *o, QEvent *ee)
break;
QMouseEvent *e = static_cast<QMouseEvent *>(ee);
buttonDown = buttonDown && (e->buttons() & Qt::LeftButton); // safety, state machine broken!
- bool me = movingEnabled;
- movingEnabled = (me && o == widget && (buttonDown || moveResizeMode));
mouseMoveEvent(e);
- movingEnabled = me;
- if (mode == Center) {
- if (movingEnabled)
- return true;
- } else {
+ if (mode != Center)
return true;
- }
} break;
case QEvent::KeyPress:
keyPressEvent(static_cast<QKeyEvent *>(ee));
@@ -193,7 +166,7 @@ bool QWidgetResizeHandler::eventFilter(QObject *o, QEvent *ee)
void QWidgetResizeHandler::mouseMoveEvent(QMouseEvent *e)
{
QPoint pos = widget->mapFromGlobal(e->globalPos());
- if (!moveResizeMode && !buttonDown) {
+ if (!active && !buttonDown) {
if (pos.y() <= range && pos.x() <= range)
mode = TopLeft;
else if (pos.y() >= widget->height()-range && pos.x() >= widget->width()-range)
@@ -215,7 +188,7 @@ void QWidgetResizeHandler::mouseMoveEvent(QMouseEvent *e)
else
mode = Nowhere;
- if (widget->isMinimized() || !isActive(Resize))
+ if (widget->isMinimized() || !isEnabled())
mode = Center;
#ifndef QT_NO_CURSOR
setMouseCursor(mode);
@@ -223,7 +196,7 @@ void QWidgetResizeHandler::mouseMoveEvent(QMouseEvent *e)
return;
}
- if (mode == Center && !movingEnabled)
+ if (mode == Center)
return;
if (widget->testAttribute(Qt::WA_WState_ConfigPending))
@@ -237,9 +210,9 @@ void QWidgetResizeHandler::mouseMoveEvent(QMouseEvent *e)
globalPos.rx() = 0;
if (globalPos.y() < 0)
globalPos.ry() = 0;
- if (sizeprotect && globalPos.x() > widget->parentWidget()->width())
+ if (globalPos.x() > widget->parentWidget()->width())
globalPos.rx() = widget->parentWidget()->width();
- if (sizeprotect && globalPos.y() > widget->parentWidget()->height())
+ if (globalPos.y() > widget->parentWidget()->height())
globalPos.ry() = widget->parentWidget()->height();
}
@@ -300,9 +273,6 @@ void QWidgetResizeHandler::mouseMoveEvent(QMouseEvent *e)
case Right:
geom = QRect(widget->geometry().topLeft(), QPoint(p.x(), widget->geometry().bottom())) ;
break;
- case Center:
- geom.moveTopLeft(pp);
- break;
default:
break;
}
@@ -314,10 +284,7 @@ void QWidgetResizeHandler::mouseMoveEvent(QMouseEvent *e)
if (geom != widget->geometry() &&
(widget->isWindow() || widget->parentWidget()->rect().intersects(geom))) {
- if (mode == Center)
- widget->move(geom.topLeft());
- else
- widget->setGeometry(geom);
+ widget->setGeometry(geom);
}
}
@@ -361,7 +328,7 @@ void QWidgetResizeHandler::setMouseCursor(MousePosition m)
void QWidgetResizeHandler::keyPressEvent(QKeyEvent * e)
{
- if (!isMove() && !isResize())
+ if (!isResizing())
return;
bool is_control = e->modifiers() & Qt::ControlModifier;
int delta = is_control?1:8;
@@ -378,7 +345,7 @@ void QWidgetResizeHandler::keyPressEvent(QKeyEvent * e)
invertedMoveOffset.rx() -= delta;
}
}
- if (isResize() && !resizeHorizontalDirectionFixed) {
+ if (isResizing() && !resizeHorizontalDirectionFixed) {
resizeHorizontalDirectionFixed = true;
if (mode == BottomRight)
mode = BottomLeft;
@@ -403,7 +370,7 @@ void QWidgetResizeHandler::keyPressEvent(QKeyEvent * e)
invertedMoveOffset.rx() -= delta;
}
}
- if (isResize() && !resizeHorizontalDirectionFixed) {
+ if (isResizing() && !resizeHorizontalDirectionFixed) {
resizeHorizontalDirectionFixed = true;
if (mode == BottomLeft)
mode = BottomRight;
@@ -428,7 +395,7 @@ void QWidgetResizeHandler::keyPressEvent(QKeyEvent * e)
invertedMoveOffset.ry() -= delta;
}
}
- if (isResize() && !resizeVerticalDirectionFixed) {
+ if (isResizing() && !resizeVerticalDirectionFixed) {
resizeVerticalDirectionFixed = true;
if (mode == BottomLeft)
mode = TopLeft;
@@ -453,7 +420,7 @@ void QWidgetResizeHandler::keyPressEvent(QKeyEvent * e)
invertedMoveOffset.ry() -= delta;
}
}
- if (isResize() && !resizeVerticalDirectionFixed) {
+ if (isResizing() && !resizeVerticalDirectionFixed) {
resizeVerticalDirectionFixed = true;
if (mode == TopLeft)
mode = BottomLeft;
@@ -471,7 +438,7 @@ void QWidgetResizeHandler::keyPressEvent(QKeyEvent * e)
case Qt::Key_Return:
case Qt::Key_Enter:
case Qt::Key_Escape:
- moveResizeMode = false;
+ active = false;
widget->releaseMouse();
widget->releaseKeyboard();
buttonDown = false;
@@ -485,10 +452,10 @@ void QWidgetResizeHandler::keyPressEvent(QKeyEvent * e)
void QWidgetResizeHandler::doResize()
{
- if (!activeForResize)
+ if (!enabled)
return;
- moveResizeMode = true;
+ active = true;
moveOffset = widget->mapFromGlobal(QCursor::pos());
if (moveOffset.x() < widget->width()/2) {
if (moveOffset.y() < widget->height()/2)
@@ -513,23 +480,6 @@ void QWidgetResizeHandler::doResize()
resizeVerticalDirectionFixed = false;
}
-void QWidgetResizeHandler::doMove()
-{
- if (!activeForMove)
- return;
-
- mode = Center;
- moveResizeMode = true;
- moveOffset = widget->mapFromGlobal(QCursor::pos());
- invertedMoveOffset = widget->rect().bottomRight() - moveOffset;
-#ifndef QT_NO_CURSOR
- widget->grabMouse(Qt::SizeAllCursor);
-#else
- widget->grabMouse();
-#endif
- widget->grabKeyboard();
-}
-
QT_END_NAMESPACE
#include "moc_qwidgetresizehandler_p.cpp"
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-09 14:52:12 +0000