source: trunk/examples/painting/basicdrawing/window.cpp

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

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.
File size: 10.3 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation (qt-info@nokia.com)
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
43#include "renderarea.h"
44#include "window.h"
45
46//! [0]
47const int IdRole = Qt::UserRole;
48//! [0]
49
50//! [1]
51Window::Window()
52{
53 renderArea = new RenderArea;
54
55 shapeComboBox = new QComboBox;
56 shapeComboBox->addItem(tr("Polygon"), RenderArea::Polygon);
57 shapeComboBox->addItem(tr("Rectangle"), RenderArea::Rect);
58 shapeComboBox->addItem(tr("Rounded Rectangle"), RenderArea::RoundedRect);
59 shapeComboBox->addItem(tr("Ellipse"), RenderArea::Ellipse);
60 shapeComboBox->addItem(tr("Pie"), RenderArea::Pie);
61 shapeComboBox->addItem(tr("Chord"), RenderArea::Chord);
62 shapeComboBox->addItem(tr("Path"), RenderArea::Path);
63 shapeComboBox->addItem(tr("Line"), RenderArea::Line);
64 shapeComboBox->addItem(tr("Polyline"), RenderArea::Polyline);
65 shapeComboBox->addItem(tr("Arc"), RenderArea::Arc);
66 shapeComboBox->addItem(tr("Points"), RenderArea::Points);
67 shapeComboBox->addItem(tr("Text"), RenderArea::Text);
68 shapeComboBox->addItem(tr("Pixmap"), RenderArea::Pixmap);
69
70 shapeLabel = new QLabel(tr("&Shape:"));
71 shapeLabel->setBuddy(shapeComboBox);
72//! [1]
73
74//! [2]
75 penWidthSpinBox = new QSpinBox;
76 penWidthSpinBox->setRange(0, 20);
77 penWidthSpinBox->setSpecialValueText(tr("0 (cosmetic pen)"));
78
79 penWidthLabel = new QLabel(tr("Pen &Width:"));
80 penWidthLabel->setBuddy(penWidthSpinBox);
81//! [2]
82
83//! [3]
84 penStyleComboBox = new QComboBox;
85 penStyleComboBox->addItem(tr("Solid"), Qt::SolidLine);
86 penStyleComboBox->addItem(tr("Dash"), Qt::DashLine);
87 penStyleComboBox->addItem(tr("Dot"), Qt::DotLine);
88 penStyleComboBox->addItem(tr("Dash Dot"), Qt::DashDotLine);
89 penStyleComboBox->addItem(tr("Dash Dot Dot"), Qt::DashDotDotLine);
90 penStyleComboBox->addItem(tr("None"), Qt::NoPen);
91
92 penStyleLabel = new QLabel(tr("&Pen Style:"));
93 penStyleLabel->setBuddy(penStyleComboBox);
94
95 penCapComboBox = new QComboBox;
96 penCapComboBox->addItem(tr("Flat"), Qt::FlatCap);
97 penCapComboBox->addItem(tr("Square"), Qt::SquareCap);
98 penCapComboBox->addItem(tr("Round"), Qt::RoundCap);
99
100 penCapLabel = new QLabel(tr("Pen &Cap:"));
101 penCapLabel->setBuddy(penCapComboBox);
102
103 penJoinComboBox = new QComboBox;
104 penJoinComboBox->addItem(tr("Miter"), Qt::MiterJoin);
105 penJoinComboBox->addItem(tr("Bevel"), Qt::BevelJoin);
106 penJoinComboBox->addItem(tr("Round"), Qt::RoundJoin);
107
108 penJoinLabel = new QLabel(tr("Pen &Join:"));
109 penJoinLabel->setBuddy(penJoinComboBox);
110//! [3]
111
112//! [4]
113 brushStyleComboBox = new QComboBox;
114 brushStyleComboBox->addItem(tr("Linear Gradient"),
115 Qt::LinearGradientPattern);
116 brushStyleComboBox->addItem(tr("Radial Gradient"),
117 Qt::RadialGradientPattern);
118 brushStyleComboBox->addItem(tr("Conical Gradient"),
119 Qt::ConicalGradientPattern);
120 brushStyleComboBox->addItem(tr("Texture"), Qt::TexturePattern);
121 brushStyleComboBox->addItem(tr("Solid"), Qt::SolidPattern);
122 brushStyleComboBox->addItem(tr("Horizontal"), Qt::HorPattern);
123 brushStyleComboBox->addItem(tr("Vertical"), Qt::VerPattern);
124 brushStyleComboBox->addItem(tr("Cross"), Qt::CrossPattern);
125 brushStyleComboBox->addItem(tr("Backward Diagonal"), Qt::BDiagPattern);
126 brushStyleComboBox->addItem(tr("Forward Diagonal"), Qt::FDiagPattern);
127 brushStyleComboBox->addItem(tr("Diagonal Cross"), Qt::DiagCrossPattern);
128 brushStyleComboBox->addItem(tr("Dense 1"), Qt::Dense1Pattern);
129 brushStyleComboBox->addItem(tr("Dense 2"), Qt::Dense2Pattern);
130 brushStyleComboBox->addItem(tr("Dense 3"), Qt::Dense3Pattern);
131 brushStyleComboBox->addItem(tr("Dense 4"), Qt::Dense4Pattern);
132 brushStyleComboBox->addItem(tr("Dense 5"), Qt::Dense5Pattern);
133 brushStyleComboBox->addItem(tr("Dense 6"), Qt::Dense6Pattern);
134 brushStyleComboBox->addItem(tr("Dense 7"), Qt::Dense7Pattern);
135 brushStyleComboBox->addItem(tr("None"), Qt::NoBrush);
136
137 brushStyleLabel = new QLabel(tr("&Brush Style:"));
138 brushStyleLabel->setBuddy(brushStyleComboBox);
139//! [4]
140
141//! [5]
142 otherOptionsLabel = new QLabel(tr("Other Options:"));
143//! [5] //! [6]
144 antialiasingCheckBox = new QCheckBox(tr("&Antialiasing"));
145//! [6] //! [7]
146 transformationsCheckBox = new QCheckBox(tr("&Transformations"));
147//! [7]
148
149//! [8]
150 connect(shapeComboBox, SIGNAL(activated(int)),
151 this, SLOT(shapeChanged()));
152 connect(penWidthSpinBox, SIGNAL(valueChanged(int)),
153 this, SLOT(penChanged()));
154 connect(penStyleComboBox, SIGNAL(activated(int)),
155 this, SLOT(penChanged()));
156 connect(penCapComboBox, SIGNAL(activated(int)),
157 this, SLOT(penChanged()));
158 connect(penJoinComboBox, SIGNAL(activated(int)),
159 this, SLOT(penChanged()));
160 connect(brushStyleComboBox, SIGNAL(activated(int)),
161 this, SLOT(brushChanged()));
162 connect(antialiasingCheckBox, SIGNAL(toggled(bool)),
163 renderArea, SLOT(setAntialiased(bool)));
164 connect(transformationsCheckBox, SIGNAL(toggled(bool)),
165 renderArea, SLOT(setTransformed(bool)));
166//! [8]
167
168//! [9]
169 QGridLayout *mainLayout = new QGridLayout;
170//! [9] //! [10]
171 mainLayout->setColumnStretch(0, 1);
172 mainLayout->setColumnStretch(3, 1);
173 mainLayout->addWidget(renderArea, 0, 0, 1, 4);
174 mainLayout->setRowMinimumHeight(1, 6);
175 mainLayout->addWidget(shapeLabel, 2, 1, Qt::AlignRight);
176 mainLayout->addWidget(shapeComboBox, 2, 2);
177 mainLayout->addWidget(penWidthLabel, 3, 1, Qt::AlignRight);
178 mainLayout->addWidget(penWidthSpinBox, 3, 2);
179 mainLayout->addWidget(penStyleLabel, 4, 1, Qt::AlignRight);
180 mainLayout->addWidget(penStyleComboBox, 4, 2);
181 mainLayout->addWidget(penCapLabel, 5, 1, Qt::AlignRight);
182 mainLayout->addWidget(penCapComboBox, 5, 2);
183 mainLayout->addWidget(penJoinLabel, 6, 1, Qt::AlignRight);
184 mainLayout->addWidget(penJoinComboBox, 6, 2);
185 mainLayout->addWidget(brushStyleLabel, 7, 1, Qt::AlignRight);
186 mainLayout->addWidget(brushStyleComboBox, 7, 2);
187 mainLayout->setRowMinimumHeight(8, 6);
188 mainLayout->addWidget(otherOptionsLabel, 9, 1, Qt::AlignRight);
189 mainLayout->addWidget(antialiasingCheckBox, 9, 2);
190 mainLayout->addWidget(transformationsCheckBox, 10, 2);
191 setLayout(mainLayout);
192
193 shapeChanged();
194 penChanged();
195 brushChanged();
196 antialiasingCheckBox->setChecked(true);
197
198 setWindowTitle(tr("Basic Drawing"));
199}
200//! [10]
201
202//! [11]
203void Window::shapeChanged()
204{
205 RenderArea::Shape shape = RenderArea::Shape(shapeComboBox->itemData(
206 shapeComboBox->currentIndex(), IdRole).toInt());
207 renderArea->setShape(shape);
208}
209//! [11]
210
211//! [12]
212void Window::penChanged()
213{
214 int width = penWidthSpinBox->value();
215 Qt::PenStyle style = Qt::PenStyle(penStyleComboBox->itemData(
216 penStyleComboBox->currentIndex(), IdRole).toInt());
217 Qt::PenCapStyle cap = Qt::PenCapStyle(penCapComboBox->itemData(
218 penCapComboBox->currentIndex(), IdRole).toInt());
219 Qt::PenJoinStyle join = Qt::PenJoinStyle(penJoinComboBox->itemData(
220 penJoinComboBox->currentIndex(), IdRole).toInt());
221
222 renderArea->setPen(QPen(Qt::blue, width, style, cap, join));
223}
224//! [12]
225
226//! [13]
227void Window::brushChanged()
228{
229 Qt::BrushStyle style = Qt::BrushStyle(brushStyleComboBox->itemData(
230//! [13]
231 brushStyleComboBox->currentIndex(), IdRole).toInt());
232
233//! [14]
234 if (style == Qt::LinearGradientPattern) {
235 QLinearGradient linearGradient(0, 0, 100, 100);
236 linearGradient.setColorAt(0.0, Qt::white);
237 linearGradient.setColorAt(0.2, Qt::green);
238 linearGradient.setColorAt(1.0, Qt::black);
239 renderArea->setBrush(linearGradient);
240//! [14] //! [15]
241 } else if (style == Qt::RadialGradientPattern) {
242 QRadialGradient radialGradient(50, 50, 50, 70, 70);
243 radialGradient.setColorAt(0.0, Qt::white);
244 radialGradient.setColorAt(0.2, Qt::green);
245 radialGradient.setColorAt(1.0, Qt::black);
246 renderArea->setBrush(radialGradient);
247 } else if (style == Qt::ConicalGradientPattern) {
248 QConicalGradient conicalGradient(50, 50, 150);
249 conicalGradient.setColorAt(0.0, Qt::white);
250 conicalGradient.setColorAt(0.2, Qt::green);
251 conicalGradient.setColorAt(1.0, Qt::black);
252 renderArea->setBrush(conicalGradient);
253//! [15] //! [16]
254 } else if (style == Qt::TexturePattern) {
255 renderArea->setBrush(QBrush(QPixmap(":/images/brick.png")));
256//! [16] //! [17]
257 } else {
258 renderArea->setBrush(QBrush(Qt::green, style));
259 }
260}
261//! [17]
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