source: trunk/examples/graphicsview/simpleanchorlayout/main.cpp@ 846

Last change on this file since 846 was 846, checked in by Dmitry A. Kuminov, 14 years ago

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.

  • Property svn:eol-style set to native
File size: 5.0 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
6**
7** This file is part of the examples of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:BSD$
10** You may use this file under the terms of the BSD license as follows:
11**
12** "Redistribution and use in source and binary forms, with or without
13** modification, are permitted provided that the following conditions are
14** met:
15** * Redistributions of source code must retain the above copyright
16** notice, this list of conditions and the following disclaimer.
17** * Redistributions in binary form must reproduce the above copyright
18** notice, this list of conditions and the following disclaimer in
19** the documentation and/or other materials provided with the
20** distribution.
21** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
22** the names of its contributors may be used to endorse or promote
23** products derived from this software without specific prior written
24** permission.
25**
26** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
27** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
28** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
29** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
30** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
31** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
32** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
33** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
34** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
35** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
36** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
37** $QT_END_LICENSE$
38**
39****************************************************************************/
40
41#include <QtGui>
42
43class Widget : public QGraphicsWidget
44{
45public:
46 Widget(const QColor &color, const QColor &textColor, const QString &caption,
47 QGraphicsItem *parent = 0)
48 : QGraphicsWidget(parent), caption(caption), color(color), textColor(textColor)
49 {
50 }
51
52 void paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget * = 0)
53 {
54 QFont font;
55 font.setPixelSize(0.75 * qMin(boundingRect().width(), boundingRect().height()));
56
57 painter->fillRect(boundingRect(), color);
58 painter->save();
59 painter->setFont(font);
60 painter->setPen(textColor);
61 painter->drawText(boundingRect(), Qt::AlignCenter, caption);
62 painter->restore();
63 }
64
65private:
66 QString caption;
67 QColor color;
68 QColor textColor;
69};
70
71int main(int argc, char *argv[])
72{
73 QApplication app(argc, argv);
74
75 QGraphicsScene *scene = new QGraphicsScene();
76
77 Widget *a = new Widget(Qt::blue, Qt::white, "a");
78 a->setPreferredSize(100, 100);
79 Widget *b = new Widget(Qt::green, Qt::black, "b");
80 b->setPreferredSize(100, 100);
81 Widget *c = new Widget(Qt::red, Qt::black, "c");
82 c->setPreferredSize(100, 100);
83
84 QGraphicsAnchorLayout *layout = new QGraphicsAnchorLayout();
85/*
86 //! [adding a corner anchor in two steps]
87 layout->addAnchor(a, Qt::AnchorTop, layout, Qt::AnchorTop);
88 layout->addAnchor(a, Qt::AnchorLeft, layout, Qt::AnchorLeft);
89 //! [adding a corner anchor in two steps]
90*/
91 //! [adding a corner anchor]
92 layout->addCornerAnchors(a, Qt::TopLeftCorner, layout, Qt::TopLeftCorner);
93 //! [adding a corner anchor]
94
95 //! [adding anchors]
96 layout->addAnchor(b, Qt::AnchorLeft, a, Qt::AnchorRight);
97 layout->addAnchor(b, Qt::AnchorTop, a, Qt::AnchorBottom);
98 //! [adding anchors]
99
100 // Place a third widget below the second.
101 layout->addAnchor(b, Qt::AnchorBottom, c, Qt::AnchorTop);
102
103/*
104 //! [adding anchors to match sizes in two steps]
105 layout->addAnchor(b, Qt::AnchorLeft, c, Qt::AnchorLeft);
106 layout->addAnchor(b, Qt::AnchorRight, c, Qt::AnchorRight);
107 //! [adding anchors to match sizes in two steps]
108*/
109
110 //! [adding anchors to match sizes]
111 layout->addAnchors(b, c, Qt::Horizontal);
112 //! [adding anchors to match sizes]
113
114 // Anchor the bottom-right corner of the third widget to the bottom-right
115 // corner of the layout.
116 layout->addCornerAnchors(c, Qt::BottomRightCorner, layout, Qt::BottomRightCorner);
117
118 QGraphicsWidget *w = new QGraphicsWidget(0, Qt::Window | Qt::CustomizeWindowHint | Qt::WindowTitleHint);
119 w->setPos(20, 20);
120 w->setMinimumSize(100, 100);
121 w->setPreferredSize(320, 240);
122 w->setLayout(layout);
123 w->setWindowTitle(QApplication::translate("simpleanchorlayout", "QGraphicsAnchorLayout in use"));
124 scene->addItem(w);
125
126 QGraphicsView *view = new QGraphicsView();
127 view->setScene(scene);
128 view->setWindowTitle(QApplication::translate("simpleanchorlayout", "Simple Anchor Layout"));
129 view->resize(360, 320);
130 view->show();
131
132 return app.exec();
133}
Note: See TracBrowser for help on using the repository browser.