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Diffstat (limited to 'sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_gui_graphicsview_qgraphicsitem.cpp')
| -rw-r--r-- | sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_gui_graphicsview_qgraphicsitem.cpp | 249 |
1 files changed, 0 insertions, 249 deletions
diff --git a/sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_gui_graphicsview_qgraphicsitem.cpp b/sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_gui_graphicsview_qgraphicsitem.cpp deleted file mode 100644 index 59f26c729..000000000 --- a/sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_gui_graphicsview_qgraphicsitem.cpp +++ /dev/null @@ -1,249 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the documentation of Qt for Python. -** -** $QT_BEGIN_LICENSE:BSD$ -** 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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -//! [0] -class SimpleItem(QGraphicsItem): - - def boundingRect(self): - penWidth = 1.0 - return QRectF(-10 - penWidth / 2, -10 - penWidth / 2, - 20 + penWidth, 20 + penWidth) - - def paint(self, painter, option, widget): - painter.drawRoundedRect(-10, -10, 20, 20, 5, 5) -//! [0] - - -//! [1] -class CustomItem(QGraphicsItem): - ... - self.Type = QGraphicsItem.UserType + 1 - - def type(self): - # Enable the use of qgraphicsitem_cast with this item. - return self.Type - ... - -//! [1] - - -//! [2] -item.setCursor(Qt.IBeamCursor) -//! [2] - - -//! [3] -item.setCursor(Qt.IBeamCursor) -//! [3] - - -//! [4] -rect = QGraphicsRectItem() -rect.setPos(100, 100) - -rect.sceneTransform().map(QPointF(0, 0)) -# returns QPointF(100, 100) - -rect.sceneTransform().inverted().map(QPointF(100, 100)) -# returns QPointF(0, 0); -//! [4] - - -//! [5] -rect = QGraphicsRectItem() -rect.setPos(100, 100) - -rect.deviceTransform(view.viewportTransform()).map(QPointF(0, 0)) -# returns the item's (0, 0) point in view's viewport coordinates - -rect.deviceTransform(view.viewportTransform()).inverted().map(QPointF(100, 100)) -# returns view's viewport's (100, 100) coordinate in item coordinates -//! [5] - - -//! [6] -# Rotate an item 45 degrees around (0, 0) -item.rotate(45) - -# Rotate an item 45 degrees around (x, y) -item.setTransform(QTransform().translate(x, y).rotate(45).translate(-x, -y)) -//! [6] - - -//! [7] -# Scale an item by 3x2 from its origin -item.scale(3, 2) - -# Scale an item by 3x2 from (x, y) -item.setTransform(QTransform().translate(x, y).scale(3, 2).translate(-x, -y)) -//! [7] - - -//! [8] -def boundingRect(self): - penWidth = 1.0 - return QRectF(-radius - penWidth / 2, -radius - penWidth / 2, - diameter + penWidth, diameter + penWidth) -//! [8] - - -//! [9] -def shape(self): - path = QPainterPath() - path.addEllipse(boundingRect()) - return path -//! [9] - - -//! [10] -def paint(self, painter, option, widget): - painter.drawRoundedRect(-10, -10, 20, 20, 5, 5) -//! [10] - - -//! [11] -ObjectName = 0; - -item = scene.itemAt(100, 50) -if len(item.data(ObjectName)) == 0: - if isinstance(ButtonItem, item): - item.setData(ObjectName, "Button") -//! [11] - - -//! [12] -scene = QGraphicsScene() -ellipse = scene.addEllipse(QRectF(-10, -10, 20, 20)) -line = scene.addLine(QLineF(-10, -10, 20, 20)) - -line.installSceneEventFilter(ellipse) -# line's events are filtered by ellipse's sceneEventFilter() function. - -ellipse.installSceneEventFilter(line) -# ellipse's events are filtered by line's sceneEventFilter() function. -//! [12] - - -//! [13] -def contextMenuEvent(self, event): - menu = QMenu() - removeAction = menu.addAction("Remove") - markAction = menu.addAction("Mark") - selectedAction = menu.exec(event.screenPos()) - // ... -//! [13] - - -//! [14] -def __init__(self): - self.setAcceptDrops(true) - ... - -def dragEnterEvent(self, event): - event.setAccepted(event.mimeData().hasFormat("text/plain")) -//! [14] - - -//! [15] -def itemChange(self, change, value): - if change == ItemPositionChange && scene(): - # value is the new position. - rect = scene().sceneRect() - if !rect.contains(value): - # Keep the item inside the scene rect. - value.setX(qMin(rect.right(), qMax(value.x(), rect.left()))) - value.setY(qMin(rect.bottom(), qMax(value.y(), rect.top()))) - return value - return QGraphicsItem.itemChange(self, change, value) -//! [15] - - -//! [16] -def setRadius(self, newRadius): - if radius != newRadius: - prepareGeometryChange() - radius = newRadius -//! [16] - - -//! [17] -# Group all selected items together -group = scene.createItemGroup(scene.selecteditems()) - -# Destroy the group, and delete the group item -scene.destroyItemGroup(group) -//! [17] - - -//! [QGraphicsItem type] -class CustomItem(QGraphicsItem): - ... - self.Type = QGraphicsItem.UserType + 1 - - def type(self): - # Enable the use of qgraphicsitem_cast with this item. - return self.Type - ... -//! [QGraphicsItem type] - -//! [18] -class QGraphicsPathItem (QAbstractGraphicsShapeItem): - Type = 2 - - def type(self): - return QGraphicsPathItem.Type -# ... -//! [18] - -//! [19] -xform = item.deviceTransform(view.viewportTransform()) -deviceRect = xform.mapRect(rect).toAlignedRect() -view.viewport().scroll(dx, dy, deviceRect) -//! [19] |