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Diffstat (limited to 'src/widgets/doc/snippets/graphicsview.cpp')
-rw-r--r-- | src/widgets/doc/snippets/graphicsview.cpp | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/src/widgets/doc/snippets/graphicsview.cpp b/src/widgets/doc/snippets/graphicsview.cpp deleted file mode 100644 index 37947b4a35..0000000000 --- a/src/widgets/doc/snippets/graphicsview.cpp +++ /dev/null @@ -1,149 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the documentation 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 <QGraphicsView> -#include <QOpenGLWidget> -#include <QPrinter> -#include <QPrintDialog> -#include <QStandardItem> -#include <QMimeData> -#include <QDrag> -#include <QGraphicsSceneMouseEvent> - -void graphicsview_snippet_main() -{ -//! [0] -QGraphicsScene scene; -QGraphicsRectItem *rect = scene.addRect(QRectF(0, 0, 100, 100)); - -QGraphicsItem *item = scene.itemAt(50, 50, QTransform()); -//! [0] -Q_UNUSED(rect); -Q_UNUSED(item); -} - -void myPopulateScene(QGraphicsScene *) -{ - // Intentionally left empty -} - -void snippetThatUsesMyPopulateScene() -{ -//! [1] -QGraphicsScene scene; -myPopulateScene(&scene); -QGraphicsView view(&scene); -view.show(); -//! [1] -} - -class CustomItem : public QStandardItem -{ -public: - using QStandardItem::QStandardItem; - - int type() const override { return UserType; } - void mousePressEvent(QGraphicsSceneMouseEvent *event); - QStandardItem *clone() const override { return new CustomItem; } -}; - - -void printScene() -{ -//! [3] -QGraphicsScene scene; -QPrinter printer; -scene.addRect(QRectF(0, 0, 100, 200), QPen(Qt::black), QBrush(Qt::green)); - -if (QPrintDialog(&printer).exec() == QDialog::Accepted) { - QPainter painter(&printer); - painter.setRenderHint(QPainter::Antialiasing); - scene.render(&painter); -} -//! [3] -} - -void pixmapScene() -{ -//! [4] -QGraphicsScene scene; -scene.addRect(QRectF(0, 0, 100, 200), QPen(Qt::black), QBrush(Qt::green)); - -QPixmap pixmap; -QPainter painter(&pixmap); -painter.setRenderHint(QPainter::Antialiasing); -scene.render(&painter); -painter.end(); - -pixmap.save("scene.png"); -//! [4] -} - -//! [5] -void CustomItem::mousePressEvent(QGraphicsSceneMouseEvent *event) -{ - QMimeData *data = new QMimeData; - QDrag *drag = new QDrag(event->widget()); - drag->setMimeData(data); - drag->exec(); -} -//! [5] - -void viewScene() -{ -QGraphicsScene scene; -//! [6] -QGraphicsView view(&scene); -QOpenGLWidget *gl = new QOpenGLWidget(); -QSurfaceFormat format; -format.setSamples(4); -gl->setFormat(format); -view.setViewport(gl); -//! [6] -} |