#!/usr/bin/env python ############################################################################# ## ## Copyright (C) 2013 Riverbank Computing Limited. ## Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). ## All rights reserved. ## ## This file is part of the examples of PyQt. ## ## $QT_BEGIN_LICENSE:LGPL$ ## Commercial Usage ## Licensees holding valid Qt Commercial licenses may use this file in ## accordance with the Qt Commercial License Agreement provided with the ## Software or, alternatively, in accordance with the terms contained in ## a written agreement between you and Nokia. ## ## 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, Nokia gives you certain additional ## rights. These rights are described in the Nokia 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. ## ## If you have questions regarding the use of this file, please contact ## Nokia at qt-info@nokia.com. ## $QT_END_LICENSE$ ## ############################################################################# from PyQt5.QtCore import QEvent, QRectF, Qt, QTimeLine from PyQt5.QtGui import (QBrush, QColor, QPainter, QPainterPath, QPixmap, QTransform) from PyQt5.QtWidgets import (QApplication, QDialog, QGraphicsItem, QGraphicsProxyWidget, QGraphicsScene, QGraphicsView, QStyleFactory, QWidget) import embeddeddialogs_rc from embeddeddialog import Ui_embeddedDialog class CustomProxy(QGraphicsProxyWidget): def __init__(self, parent=None, wFlags=0): super(CustomProxy, self).__init__(parent, wFlags) self.popupShown = False self.currentPopup = None self.timeLine = QTimeLine(250, self) self.timeLine.valueChanged.connect(self.updateStep) self.timeLine.stateChanged.connect(self.stateChanged) def boundingRect(self): return QGraphicsProxyWidget.boundingRect(self).adjusted(0, 0, 10, 10) def paintWindowFrame(self, painter, option, widget): color = QColor(0, 0, 0, 64) r = self.windowFrameRect() right = QRectF(r.right(), r.top()+10, 10, r.height()-10) bottom = QRectF(r.left()+10, r.bottom(), r.width(), 10) intersectsRight = right.intersects(option.exposedRect) intersectsBottom = bottom.intersects(option.exposedRect) if intersectsRight and intersectsBottom: path = QPainterPath() path.addRect(right) path.addRect(bottom) painter.setPen(Qt.NoPen) painter.setBrush(color) painter.drawPath(path) elif intersectsBottom: painter.fillRect(bottom, color) elif intersectsRight: painter.fillRect(right, color) super(CustomProxy, self).paintWindowFrame(painter, option, widget) def hoverEnterEvent(self, event): super(CustomProxy, self).hoverEnterEvent(event) self.scene().setActiveWindow(self) if self.timeLine.currentValue != 1: self.zoomIn() def hoverLeaveEvent(self, event): super(CustomProxy, self).hoverLeaveEvent(event) if not self.popupShown and (self.timeLine.direction() != QTimeLine.Backward or self.timeLine.currentValue() != 0): self.zoomOut() def sceneEventFilter(self, watched, event): if watched.isWindow() and (event.type() == QEvent.UngrabMouse or event.type() == QEvent.GrabMouse): self.popupShown = watched.isVisible() if not self.popupShown and not self.isUnderMouse(): self.zoomOut() return super(CustomProxy, self).sceneEventFilter(watched, event) def itemChange(self, change, value): if change == self.ItemChildAddedChange or change == self.ItemChildRemovedChange : if change == self.ItemChildAddedChange: self.currentPopup = value self.currentPopup.setCacheMode(self.ItemCoordinateCache) if self.scene() is not None: self.currentPopup.installSceneEventFilter(self) elif self.scene() is not None: self.currentPopup.removeSceneEventFilter(self) self.currentPopup = None elif self.currentPopup is not None and change == self.ItemSceneHasChanged: self.currentPopup.installSceneEventFilter(self) return super(CustomProxy, self).itemChange(change, value) def updateStep(self, step): r = self.boundingRect() self.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)) def stateChanged(self, state): if state == QTimeLine.Running: if self.timeLine.direction() == QTimeLine.Forward: self.setCacheMode(self.NoCache) elif state == QTimeLine.NotRunning: if self.timeLine.direction() == QTimeLine.Backward: self.setCacheMode(self.DeviceCoordinateCache) def zoomIn(self): if self.timeLine.direction() != QTimeLine.Forward: self.timeLine.setDirection(QTimeLine.Forward) if self.timeLine.state() == QTimeLine.NotRunning: self.timeLine.start() def zoomOut(self): if self.timeLine.direction() != QTimeLine.Backward: self.timeLine.setDirection(QTimeLine.Backward) if self.timeLine.state() == QTimeLine.NotRunning: self.timeLine.start() class EmbeddedDialog(QDialog): def __init__(self, parent=None): super(EmbeddedDialog, self).__init__(parent) self.ui = Ui_embeddedDialog() self.ui.setupUi(self) self.ui.layoutDirection.setCurrentIndex(self.layoutDirection() != Qt.LeftToRight) for styleName in QStyleFactory.keys(): self.ui.style.addItem(styleName) if self.style().objectName().lower() == styleName.lower(): self.ui.style.setCurrentIndex(self.ui.style.count() -1) self.ui.layoutDirection.activated.connect(self.layoutDirectionChanged) self.ui.spacing.valueChanged.connect(self.spacingChanged) self.ui.fontComboBox.currentFontChanged.connect(self.fontChanged) self.ui.style.activated[str].connect(self.styleChanged) def layoutDirectionChanged(self, index): if index == 0: self.setLayoutDirection(Qt.LeftToRight) else: self.setLayoutDirection(Qt.RightToLeft) def spacingChanged(self, spacing): self.layout().setSpacing(spacing) self.adjustSize() def fontChanged(self, font): self.setFont(font) def setStyleHelper(self, widget, style): widget.setStyle(style) widget.setPalette(style.standardPalette()) for child in widget.children(): if isinstance(child, QWidget): self.setStyleHelper(child, style) def styleChanged(self, styleName): style = QStyleFactory.create(styleName) if style: self.setStyleHelper(self, style) # Keep a reference to the style. self._style = style if __name__ == '__main__': import sys app = QApplication(sys.argv) scene = QGraphicsScene() scene.setStickyFocus(True) for y in range(10): for x in range(10): proxy = CustomProxy(None, Qt.Window) proxy.setWidget(EmbeddedDialog()) rect = proxy.boundingRect() proxy.setPos( x * rect.width()*1.05, y*rect.height()*1.05 ) proxy.setCacheMode(QGraphicsItem.DeviceCoordinateCache) scene.addItem(proxy) scene.setSceneRect(scene.itemsBoundingRect()) view = QGraphicsView(scene) view.scale(0.5, 0.5) view.setRenderHints(view.renderHints() | QPainter.Antialiasing | QPainter.SmoothPixmapTransform) view.setBackgroundBrush(QBrush(QPixmap(':/No-Ones-Laughing-3.jpg'))) view.setViewportUpdateMode(QGraphicsView.BoundingRectViewportUpdate) view.show() view.setWindowTitle("Embedded Dialogs Demo") sys.exit(app.exec_())