1 files changed, 249 insertions, 0 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
new file mode 100644
index 000000000..67e588075
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+++ b/sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_gui_graphicsview_qgraphicsitem.cpp
@@ -0,0 +1,249 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the documentation of PySide2.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** 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]