From 97b5b8009254004608feefb903cbf44abaa099f6 Mon Sep 17 00:00:00 2001 From: Casper van Donderen Date: Mon, 7 May 2012 18:49:48 +0200 Subject: Doc: Modularize QtWidgets documentation. This change moves the snippets and images to the modularized directories. Change-Id: Idec1afb9db7ea6add1ca4cf25ec4019d8bce0c4d Reviewed-by: Marius Storm-Olsen --- .../code/src_gui_graphicsview_qgraphicsview.cpp | 132 +++++++++++++++++++++ 1 file changed, 132 insertions(+) create mode 100644 src/widgets/doc/snippets/code/src_gui_graphicsview_qgraphicsview.cpp (limited to 'src/widgets/doc/snippets/code/src_gui_graphicsview_qgraphicsview.cpp') diff --git a/src/widgets/doc/snippets/code/src_gui_graphicsview_qgraphicsview.cpp b/src/widgets/doc/snippets/code/src_gui_graphicsview_qgraphicsview.cpp new file mode 100644 index 0000000000..d07b5f7cf6 --- /dev/null +++ b/src/widgets/doc/snippets/code/src_gui_graphicsview_qgraphicsview.cpp @@ -0,0 +1,132 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** 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 Nokia Corporation and its Subsidiary(-ies) 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] +QGraphicsScene scene; +scene.addText("Hello, world!"); + +QGraphicsView view(&scene); +view.show(); +//! [0] + + +//! [1] +QGraphicsScene scene; +scene.addRect(QRectF(-10, -10, 20, 20)); + +QGraphicsView view(&scene); +view.setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform); +view.show(); +//! [1] + + +//! [2] +QGraphicsView view; +view.setBackgroundBrush(QImage(":/images/backgroundtile.png")); +view.setCacheMode(QGraphicsView::CacheBackground); +//! [2] + + +//! [3] +QGraphicsScene scene; +scene.addText("GraphicsView rotated clockwise"); + +QGraphicsView view(&scene); +view.rotate(90); // the text is rendered with a 90 degree clockwise rotation +view.show(); +//! [3] + + +//! [4] +QGraphicsScene scene; +scene.addItem(... +... + +QGraphicsView view(&scene); +view.show(); +... + +QPrinter printer(QPrinter::HighResolution); +printer.setPageSize(QPrinter::A4); +QPainter painter(&printer); + +// print, fitting the viewport contents into a full page +view.render(&painter); + +// print the upper half of the viewport into the lower. +// half of the page. +QRect viewport = view.viewport()->rect(); +view.render(&painter, + QRectF(0, printer.height() / 2, + printer.width(), printer.height() / 2), + viewport.adjusted(0, 0, 0, -viewport.height() / 2)); + +//! [4] + + +//! [5] +void CustomView::mousePressEvent(QMouseEvent *event) +{ + qDebug() << "There are" << items(event->pos()).size() + << "items at position" << mapToScene(event->pos()); +} +//! [5] + + +//! [6] +void CustomView::mousePressEvent(QMouseEvent *event) +{ + if (QGraphicsItem *item = itemAt(event->pos())) { + qDebug() << "You clicked on item" << item; + } else { + qDebug() << "You didn't click on an item."; + } +} +//! [6] + + +//! [7] +QGraphicsScene scene; +scene.addText("GraphicsView rotated clockwise"); + +QGraphicsView view(&scene); +view.rotate(90); // the text is rendered with a 90 degree clockwise rotation +view.show(); +//! [7] -- cgit v1.2.3