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Diffstat (limited to 'examples/widgets/graphicsview/embeddeddialogs/customproxy.cpp')
-rw-r--r-- | examples/widgets/graphicsview/embeddeddialogs/customproxy.cpp | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/examples/widgets/graphicsview/embeddeddialogs/customproxy.cpp b/examples/widgets/graphicsview/embeddeddialogs/customproxy.cpp deleted file mode 100644 index 6eda94e8ba..0000000000 --- a/examples/widgets/graphicsview/embeddeddialogs/customproxy.cpp +++ /dev/null @@ -1,180 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** 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 The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "customproxy.h" - -#include <QGraphicsScene> -#include <QPainter> -#include <QStyleOptionGraphicsItem> - -CustomProxy::CustomProxy(QGraphicsItem *parent, Qt::WindowFlags wFlags) - : QGraphicsProxyWidget(parent, wFlags), timeLine(new QTimeLine(250, this)) -{ - connect(timeLine, &QTimeLine::valueChanged, - this, &CustomProxy::updateStep); - connect(timeLine, &QTimeLine::stateChanged, - this, &CustomProxy::stateChanged); -} - -QRectF CustomProxy::boundingRect() const -{ - return QGraphicsProxyWidget::boundingRect().adjusted(0, 0, 10, 10); -} - -void CustomProxy::paintWindowFrame(QPainter *painter, const QStyleOptionGraphicsItem *option, - QWidget *widget) -{ - const QColor color(0, 0, 0, 64); - - QRectF r = windowFrameRect(); - QRectF right(r.right(), r.top() + 10, 10, r.height() - 10); - QRectF bottom(r.left() + 10, r.bottom(), r.width(), 10); - bool intersectsRight = right.intersects(option->exposedRect); - bool intersectsBottom = bottom.intersects(option->exposedRect); - if (intersectsRight && intersectsBottom) { - QPainterPath path; - path.addRect(right); - path.addRect(bottom); - painter->setPen(Qt::NoPen); - painter->setBrush(color); - painter->drawPath(path); - } else if (intersectsBottom) { - painter->fillRect(bottom, color); - } else if (intersectsRight) { - painter->fillRect(right, color); - } - - QGraphicsProxyWidget::paintWindowFrame(painter, option, widget); -} - -void CustomProxy::hoverEnterEvent(QGraphicsSceneHoverEvent *event) -{ - QGraphicsProxyWidget::hoverEnterEvent(event); - scene()->setActiveWindow(this); - if (qFuzzyCompare(timeLine->currentValue(), 1)) - zoomIn(); -} - -void CustomProxy::hoverLeaveEvent(QGraphicsSceneHoverEvent *event) -{ - QGraphicsProxyWidget::hoverLeaveEvent(event); - if (!popupShown - && (timeLine->direction() != QTimeLine::Backward || qFuzzyIsNull(timeLine->currentValue()))) { - zoomOut(); - } -} - -bool CustomProxy::sceneEventFilter(QGraphicsItem *watched, QEvent *event) -{ - if (watched->isWindow() - && (event->type() == QEvent::UngrabMouse || event->type() == QEvent::GrabMouse)) { - popupShown = watched->isVisible(); - if (!popupShown && !isUnderMouse()) - zoomOut(); - } - return QGraphicsProxyWidget::sceneEventFilter(watched, event); -} - -QVariant CustomProxy::itemChange(GraphicsItemChange change, const QVariant &value) -{ - if (change == ItemChildAddedChange || change == ItemChildRemovedChange) { - if (change == ItemChildAddedChange) { - currentPopup = qvariant_cast<QGraphicsItem *>(value); - currentPopup->setCacheMode(ItemCoordinateCache); - if (scene()) - currentPopup->installSceneEventFilter(this); - } else if (scene()) { - currentPopup->removeSceneEventFilter(this); - currentPopup = nullptr; - } - } else if (currentPopup && change == ItemSceneHasChanged) { - currentPopup->installSceneEventFilter(this); - } - return QGraphicsProxyWidget::itemChange(change, value); -} - -void CustomProxy::updateStep(qreal step) -{ - QRectF r = boundingRect(); - setTransform(QTransform() - .translate(r.width() / 2, r.height() / 2) - .rotate(step * 30, Qt::XAxis) - .rotate(step * 10, Qt::YAxis) - .rotate(step * 5, Qt::ZAxis) - .scale(1 + 1.5 * step, 1 + 1.5 * step) - .translate(-r.width() / 2, -r.height() / 2)); -} - -void CustomProxy::stateChanged(QTimeLine::State state) -{ - if (state == QTimeLine::Running) { - if (timeLine->direction() == QTimeLine::Forward) - setCacheMode(ItemCoordinateCache); - } else if (state == QTimeLine::NotRunning) { - if (timeLine->direction() == QTimeLine::Backward) - setCacheMode(DeviceCoordinateCache); - } -} - -void CustomProxy::zoomIn() -{ - if (timeLine->direction() != QTimeLine::Forward) - timeLine->setDirection(QTimeLine::Forward); - if (timeLine->state() == QTimeLine::NotRunning) - timeLine->start(); -} - -void CustomProxy::zoomOut() -{ - if (timeLine->direction() != QTimeLine::Backward) - timeLine->setDirection(QTimeLine::Backward); - if (timeLine->state() == QTimeLine::NotRunning) - timeLine->start(); -} |