source: trunk/examples/painting/basicdrawing/window.cpp@ 5

Last change on this file since 5 was 2, checked in by Dmitry A. Kuminov, 16 years ago

Initially imported qt-all-opensource-src-4.5.1 from Trolltech.
File size: 10.2 KB
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1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** Contact: Qt Software Information (qt-info@nokia.com)
5**
6** This file is part of the examples of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial Usage
10** Licensees holding valid Qt Commercial licenses may use this file in
11** accordance with the Qt Commercial License Agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and Nokia.
14**
15** GNU Lesser General Public License Usage
16** Alternatively, this file may be used under the terms of the GNU Lesser
17** General Public License version 2.1 as published by the Free Software
18** Foundation and appearing in the file LICENSE.LGPL included in the
19** packaging of this file. Please review the following information to
20** ensure the GNU Lesser General Public License version 2.1 requirements
21** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
22**
23** In addition, as a special exception, Nokia gives you certain
24** additional rights. These rights are described in the Nokia Qt LGPL
25** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
26** package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you are unsure which license is appropriate for your use, please
37** contact the sales department at qt-sales@nokia.com.
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#include <QtGui>
43
44#include "renderarea.h"
45#include "window.h"
46
47//! [0]
48const int IdRole = Qt::UserRole;
49//! [0]
50
51//! [1]
52Window::Window()
53{
54 renderArea = new RenderArea;
55
56 shapeComboBox = new QComboBox;
57 shapeComboBox->addItem(tr("Polygon"), RenderArea::Polygon);
58 shapeComboBox->addItem(tr("Rectangle"), RenderArea::Rect);
59 shapeComboBox->addItem(tr("Rounded Rectangle"), RenderArea::RoundedRect);
60 shapeComboBox->addItem(tr("Ellipse"), RenderArea::Ellipse);
61 shapeComboBox->addItem(tr("Pie"), RenderArea::Pie);
62 shapeComboBox->addItem(tr("Chord"), RenderArea::Chord);
63 shapeComboBox->addItem(tr("Path"), RenderArea::Path);
64 shapeComboBox->addItem(tr("Line"), RenderArea::Line);
65 shapeComboBox->addItem(tr("Polyline"), RenderArea::Polyline);
66 shapeComboBox->addItem(tr("Arc"), RenderArea::Arc);
67 shapeComboBox->addItem(tr("Points"), RenderArea::Points);
68 shapeComboBox->addItem(tr("Text"), RenderArea::Text);
69 shapeComboBox->addItem(tr("Pixmap"), RenderArea::Pixmap);
70
71 shapeLabel = new QLabel(tr("&Shape:"));
72 shapeLabel->setBuddy(shapeComboBox);
73//! [1]
74
75//! [2]
76 penWidthSpinBox = new QSpinBox;
77 penWidthSpinBox->setRange(0, 20);
78 penWidthSpinBox->setSpecialValueText(tr("0 (cosmetic pen)"));
79
80 penWidthLabel = new QLabel(tr("Pen &Width:"));
81 penWidthLabel->setBuddy(penWidthSpinBox);
82//! [2]
83
84//! [3]
85 penStyleComboBox = new QComboBox;
86 penStyleComboBox->addItem(tr("Solid"), Qt::SolidLine);
87 penStyleComboBox->addItem(tr("Dash"), Qt::DashLine);
88 penStyleComboBox->addItem(tr("Dot"), Qt::DotLine);
89 penStyleComboBox->addItem(tr("Dash Dot"), Qt::DashDotLine);
90 penStyleComboBox->addItem(tr("Dash Dot Dot"), Qt::DashDotDotLine);
91 penStyleComboBox->addItem(tr("None"), Qt::NoPen);
92
93 penStyleLabel = new QLabel(tr("&Pen Style:"));
94 penStyleLabel->setBuddy(penStyleComboBox);
95
96 penCapComboBox = new QComboBox;
97 penCapComboBox->addItem(tr("Flat"), Qt::FlatCap);
98 penCapComboBox->addItem(tr("Square"), Qt::SquareCap);
99 penCapComboBox->addItem(tr("Round"), Qt::RoundCap);
100
101 penCapLabel = new QLabel(tr("Pen &Cap:"));
102 penCapLabel->setBuddy(penCapComboBox);
103
104 penJoinComboBox = new QComboBox;
105 penJoinComboBox->addItem(tr("Miter"), Qt::MiterJoin);
106 penJoinComboBox->addItem(tr("Bevel"), Qt::BevelJoin);
107 penJoinComboBox->addItem(tr("Round"), Qt::RoundJoin);
108
109 penJoinLabel = new QLabel(tr("Pen &Join:"));
110 penJoinLabel->setBuddy(penJoinComboBox);
111//! [3]
112
113//! [4]
114 brushStyleComboBox = new QComboBox;
115 brushStyleComboBox->addItem(tr("Linear Gradient"),
116 Qt::LinearGradientPattern);
117 brushStyleComboBox->addItem(tr("Radial Gradient"),
118 Qt::RadialGradientPattern);
119 brushStyleComboBox->addItem(tr("Conical Gradient"),
120 Qt::ConicalGradientPattern);
121 brushStyleComboBox->addItem(tr("Texture"), Qt::TexturePattern);
122 brushStyleComboBox->addItem(tr("Solid"), Qt::SolidPattern);
123 brushStyleComboBox->addItem(tr("Horizontal"), Qt::HorPattern);
124 brushStyleComboBox->addItem(tr("Vertical"), Qt::VerPattern);
125 brushStyleComboBox->addItem(tr("Cross"), Qt::CrossPattern);
126 brushStyleComboBox->addItem(tr("Backward Diagonal"), Qt::BDiagPattern);
127 brushStyleComboBox->addItem(tr("Forward Diagonal"), Qt::FDiagPattern);
128 brushStyleComboBox->addItem(tr("Diagonal Cross"), Qt::DiagCrossPattern);
129 brushStyleComboBox->addItem(tr("Dense 1"), Qt::Dense1Pattern);
130 brushStyleComboBox->addItem(tr("Dense 2"), Qt::Dense2Pattern);
131 brushStyleComboBox->addItem(tr("Dense 3"), Qt::Dense3Pattern);
132 brushStyleComboBox->addItem(tr("Dense 4"), Qt::Dense4Pattern);
133 brushStyleComboBox->addItem(tr("Dense 5"), Qt::Dense5Pattern);
134 brushStyleComboBox->addItem(tr("Dense 6"), Qt::Dense6Pattern);
135 brushStyleComboBox->addItem(tr("Dense 7"), Qt::Dense7Pattern);
136 brushStyleComboBox->addItem(tr("None"), Qt::NoBrush);
137
138 brushStyleLabel = new QLabel(tr("&Brush Style:"));
139 brushStyleLabel->setBuddy(brushStyleComboBox);
140//! [4]
141
142//! [5]
143 otherOptionsLabel = new QLabel(tr("Other Options:"));
144//! [5] //! [6]
145 antialiasingCheckBox = new QCheckBox(tr("&Antialiasing"));
146//! [6] //! [7]
147 transformationsCheckBox = new QCheckBox(tr("&Transformations"));
148//! [7]
149
150//! [8]
151 connect(shapeComboBox, SIGNAL(activated(int)),
152 this, SLOT(shapeChanged()));
153 connect(penWidthSpinBox, SIGNAL(valueChanged(int)),
154 this, SLOT(penChanged()));
155 connect(penStyleComboBox, SIGNAL(activated(int)),
156 this, SLOT(penChanged()));
157 connect(penCapComboBox, SIGNAL(activated(int)),
158 this, SLOT(penChanged()));
159 connect(penJoinComboBox, SIGNAL(activated(int)),
160 this, SLOT(penChanged()));
161 connect(brushStyleComboBox, SIGNAL(activated(int)),
162 this, SLOT(brushChanged()));
163 connect(antialiasingCheckBox, SIGNAL(toggled(bool)),
164 renderArea, SLOT(setAntialiased(bool)));
165 connect(transformationsCheckBox, SIGNAL(toggled(bool)),
166 renderArea, SLOT(setTransformed(bool)));
167//! [8]
168
169//! [9]
170 QGridLayout *mainLayout = new QGridLayout;
171//! [9] //! [10]
172 mainLayout->setColumnStretch(0, 1);
173 mainLayout->setColumnStretch(3, 1);
174 mainLayout->addWidget(renderArea, 0, 0, 1, 4);
175 mainLayout->setRowMinimumHeight(1, 6);
176 mainLayout->addWidget(shapeLabel, 2, 1, Qt::AlignRight);
177 mainLayout->addWidget(shapeComboBox, 2, 2);
178 mainLayout->addWidget(penWidthLabel, 3, 1, Qt::AlignRight);
179 mainLayout->addWidget(penWidthSpinBox, 3, 2);
180 mainLayout->addWidget(penStyleLabel, 4, 1, Qt::AlignRight);
181 mainLayout->addWidget(penStyleComboBox, 4, 2);
182 mainLayout->addWidget(penCapLabel, 5, 1, Qt::AlignRight);
183 mainLayout->addWidget(penCapComboBox, 5, 2);
184 mainLayout->addWidget(penJoinLabel, 6, 1, Qt::AlignRight);
185 mainLayout->addWidget(penJoinComboBox, 6, 2);
186 mainLayout->addWidget(brushStyleLabel, 7, 1, Qt::AlignRight);
187 mainLayout->addWidget(brushStyleComboBox, 7, 2);
188 mainLayout->setRowMinimumHeight(8, 6);
189 mainLayout->addWidget(otherOptionsLabel, 9, 1, Qt::AlignRight);
190 mainLayout->addWidget(antialiasingCheckBox, 9, 2);
191 mainLayout->addWidget(transformationsCheckBox, 10, 2);
192 setLayout(mainLayout);
193
194 shapeChanged();
195 penChanged();
196 brushChanged();
197 antialiasingCheckBox->setChecked(true);
198
199 setWindowTitle(tr("Basic Drawing"));
200}
201//! [10]
202
203//! [11]
204void Window::shapeChanged()
205{
206 RenderArea::Shape shape = RenderArea::Shape(shapeComboBox->itemData(
207 shapeComboBox->currentIndex(), IdRole).toInt());
208 renderArea->setShape(shape);
209}
210//! [11]
211
212//! [12]
213void Window::penChanged()
214{
215 int width = penWidthSpinBox->value();
216 Qt::PenStyle style = Qt::PenStyle(penStyleComboBox->itemData(
217 penStyleComboBox->currentIndex(), IdRole).toInt());
218 Qt::PenCapStyle cap = Qt::PenCapStyle(penCapComboBox->itemData(
219 penCapComboBox->currentIndex(), IdRole).toInt());
220 Qt::PenJoinStyle join = Qt::PenJoinStyle(penJoinComboBox->itemData(
221 penJoinComboBox->currentIndex(), IdRole).toInt());
222
223 renderArea->setPen(QPen(Qt::blue, width, style, cap, join));
224}
225//! [12]
226
227//! [13]
228void Window::brushChanged()
229{
230 Qt::BrushStyle style = Qt::BrushStyle(brushStyleComboBox->itemData(
231//! [13]
232 brushStyleComboBox->currentIndex(), IdRole).toInt());
233
234//! [14]
235 if (style == Qt::LinearGradientPattern) {
236 QLinearGradient linearGradient(0, 0, 100, 100);
237 linearGradient.setColorAt(0.0, Qt::white);
238 linearGradient.setColorAt(0.2, Qt::green);
239 linearGradient.setColorAt(1.0, Qt::black);
240 renderArea->setBrush(linearGradient);
241//! [14] //! [15]
242 } else if (style == Qt::RadialGradientPattern) {
243 QRadialGradient radialGradient(50, 50, 50, 70, 70);
244 radialGradient.setColorAt(0.0, Qt::white);
245 radialGradient.setColorAt(0.2, Qt::green);
246 radialGradient.setColorAt(1.0, Qt::black);
247 renderArea->setBrush(radialGradient);
248 } else if (style == Qt::ConicalGradientPattern) {
249 QConicalGradient conicalGradient(50, 50, 150);
250 conicalGradient.setColorAt(0.0, Qt::white);
251 conicalGradient.setColorAt(0.2, Qt::green);
252 conicalGradient.setColorAt(1.0, Qt::black);
253 renderArea->setBrush(conicalGradient);
254//! [15] //! [16]
255 } else if (style == Qt::TexturePattern) {
256 renderArea->setBrush(QBrush(QPixmap(":/images/brick.png")));
257//! [16] //! [17]
258 } else {
259 renderArea->setBrush(QBrush(Qt::green, style));
260 }
261}
262//! [17]
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