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326 lines
7.3 KiB
326 lines
7.3 KiB
/* BEGIN_COMMON_COPYRIGHT_HEADER |
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* (c)LGPL2+ |
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* |
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* LXQt - a lightweight, Qt based, desktop toolset |
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* https://lxqt.org |
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* |
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* Copyright: 2010-2013 Razor team |
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* Authors: |
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* Kuzma Shapran <[email protected]> |
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* |
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* This program or library is free software; you can redistribute it |
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* and/or modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* You should have received a copy of the GNU Lesser General |
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* Public License along with this library; if not, write to the |
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
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* Boston, MA 02110-1301 USA |
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* |
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* END_COMMON_COPYRIGHT_HEADER */ |
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#include "lxqtrotatedwidget.h" |
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#include <QPainter> |
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#include <QImage> |
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#include <QApplication> |
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#include <QMouseEvent> |
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#ifndef QT_NO_WHEELEVENT |
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#include <QWheelEvent> |
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#endif |
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#include <QResizeEvent> |
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using namespace LXQt; |
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RotatedWidget::RotatedWidget(QWidget &content, QWidget *parent, Qt::WindowFlags f) |
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: QWidget(parent, f) |
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, mContent(&content) |
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, mOrigin(Qt::TopLeftCorner) |
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, mTransferMousePressEvent(false) |
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, mTransferMouseReleaseEvent(false) |
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, mTransferMouseDoubleClickEvent(false) |
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, mTransferMouseMoveEvent(false) |
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#ifndef QT_NO_WHEELEVENT |
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, mTransferWheelEvent(false) |
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#endif |
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, mTransferEnterEvent(false) |
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, mTransferLeaveEvent(false) |
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{ |
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mContent->setParent(this); |
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} |
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Qt::Corner RotatedWidget::origin() const |
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{ |
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return mOrigin; |
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} |
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void RotatedWidget::setOrigin(Qt::Corner newOrigin) |
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{ |
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if (mOrigin != newOrigin) |
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{ |
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if (mOrigin == Qt::TopLeftCorner) |
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mContent->hide(); |
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mOrigin = newOrigin; |
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adjustContentSize(); |
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update(); |
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if (mOrigin == Qt::TopLeftCorner) |
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mContent->show(); |
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} |
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} |
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QWidget * RotatedWidget::content() const |
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{ |
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return mContent; |
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} |
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void RotatedWidget::adjustContentSize() |
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{ |
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mContent->adjustSize(); |
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const QSize before = size(); |
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adjustSize(); |
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if (before != size()) |
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updateGeometry(); |
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} |
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QSize RotatedWidget::adjustedSize(QSize size) const |
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{ |
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switch (mOrigin) |
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{ |
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case Qt::TopLeftCorner: |
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case Qt::BottomRightCorner: |
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break; |
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case Qt::TopRightCorner: |
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case Qt::BottomLeftCorner: |
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size.transpose(); |
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break; |
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} |
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return size; |
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} |
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QPointF RotatedWidget::adjustedPoint(QPointF point) const |
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{ |
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switch (mOrigin) |
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{ |
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case Qt::TopLeftCorner: |
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case Qt::BottomRightCorner: |
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break; |
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case Qt::TopRightCorner: |
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case Qt::BottomLeftCorner: |
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point = QPointF(point.y(), point.x()); |
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break; |
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} |
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return point; |
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} |
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QSize RotatedWidget::minimumSizeHint() const |
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{ |
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return adjustedSize(mContent->minimumSizeHint()); |
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} |
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QSize RotatedWidget::sizeHint() const |
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{ |
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return adjustedSize(mContent->sizeHint()); |
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} |
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void RotatedWidget::paintEvent(QPaintEvent */*event*/) |
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{ |
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if (mOrigin == Qt::TopLeftCorner) |
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return; |
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const QSize sz = mContent->size(); |
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QPainter painter(this); |
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QTransform transform; |
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QPoint originPoint; |
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switch (mOrigin) |
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{ |
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case Qt::TopLeftCorner: |
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// transform.rotate(0.0); |
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// originPoint = QPoint(0.0, 0.0); |
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break; |
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case Qt::TopRightCorner: |
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transform.rotate(90.0); |
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originPoint = QPoint(0.0, -sz.height()); |
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break; |
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case Qt::BottomRightCorner: |
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transform.rotate(180.0); |
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originPoint = QPoint(-sz.width(), -sz.height()); |
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break; |
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case Qt::BottomLeftCorner: |
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transform.rotate(270.0); |
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originPoint = QPoint(-sz.width(), 0.0); |
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break; |
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} |
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painter.setTransform(transform); |
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mContent->render(&painter, originPoint, QRegion(), RenderFlags(DrawChildren)); |
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} |
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void RotatedWidget::mousePressEvent(QMouseEvent *event) |
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{ |
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if (!mTransferMousePressEvent) |
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{ |
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event->ignore(); |
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return; |
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} |
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static bool cascadeCall = false; |
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if (cascadeCall) |
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return; |
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cascadeCall = true; |
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QMouseEvent contentEvent(event->type(), adjustedPoint(event->pos()), event->globalPos(), event->button(), event->buttons(), event->modifiers()); |
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QApplication::sendEvent(mContent, &contentEvent); |
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cascadeCall = false; |
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} |
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void RotatedWidget::mouseReleaseEvent(QMouseEvent *event) |
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{ |
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if (!mTransferMouseReleaseEvent) |
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{ |
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event->ignore(); |
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return; |
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} |
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static bool cascadeCall = false; |
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if (cascadeCall) |
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return; |
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cascadeCall = true; |
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QMouseEvent contentEvent(event->type(), adjustedPoint(event->pos()), event->globalPos(), event->button(), event->buttons(), event->modifiers()); |
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QApplication::sendEvent(mContent, &contentEvent); |
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cascadeCall = false; |
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} |
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void RotatedWidget::mouseDoubleClickEvent(QMouseEvent *event) |
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{ |
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if (!mTransferMouseDoubleClickEvent) |
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{ |
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event->ignore(); |
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return; |
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} |
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static bool cascadeCall = false; |
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if (cascadeCall) |
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return; |
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cascadeCall = true; |
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QMouseEvent contentEvent(event->type(), adjustedPoint(event->pos()), event->globalPos(), event->button(), event->buttons(), event->modifiers()); |
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QApplication::sendEvent(mContent, &contentEvent); |
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cascadeCall = false; |
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} |
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void RotatedWidget::mouseMoveEvent(QMouseEvent *event) |
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{ |
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if (!mTransferMouseMoveEvent) |
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{ |
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event->ignore(); |
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return; |
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} |
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static bool cascadeCall = false; |
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if (cascadeCall) |
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return; |
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cascadeCall = true; |
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QMouseEvent contentEvent(event->type(), adjustedPoint(event->pos()), event->globalPos(), event->button(), event->buttons(), event->modifiers()); |
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QApplication::sendEvent(mContent, &contentEvent); |
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cascadeCall = false; |
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} |
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#ifndef QT_NO_WHEELEVENT |
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void RotatedWidget::wheelEvent(QWheelEvent *event) |
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{ |
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if (!mTransferWheelEvent) |
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{ |
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event->ignore(); |
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return; |
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} |
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static bool cascadeCall = false; |
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if (cascadeCall) |
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return; |
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cascadeCall = true; |
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QWheelEvent contentEvent(adjustedPoint(event->position()), event->globalPosition(), event->pixelDelta(), event->angleDelta(), event->buttons(), event->modifiers(), event->phase(), false); |
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QApplication::sendEvent(mContent, &contentEvent); |
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cascadeCall = false; |
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} |
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#endif |
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void RotatedWidget::enterEvent(QEvent *event) |
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{ |
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if (!mTransferEnterEvent) |
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{ |
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event->ignore(); |
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return; |
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} |
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static bool cascadeCall = false; |
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if (cascadeCall) |
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return; |
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cascadeCall = true; |
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QApplication::sendEvent(mContent, event); |
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cascadeCall = false; |
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} |
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void RotatedWidget::leaveEvent(QEvent *event) |
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{ |
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if (!mTransferLeaveEvent) |
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{ |
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event->ignore(); |
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return; |
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} |
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static bool cascadeCall = false; |
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if (cascadeCall) |
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return; |
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cascadeCall = true; |
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QApplication::sendEvent(mContent, event); |
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cascadeCall = false; |
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} |
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void RotatedWidget::resizeEvent(QResizeEvent *event) |
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{ |
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static bool cascadeCall = false; |
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if (cascadeCall) |
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return; |
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cascadeCall = true; |
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QResizeEvent contentEvent(adjustedSize(event->size()), adjustedSize(event->oldSize())); |
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QApplication::sendEvent(mContent, &contentEvent); |
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cascadeCall = false; |
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}
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