source: trunk/examples/painting/painterpaths/window.cpp@ 1049

Last change on this file since 1049 was 846, checked in by Dmitry A. Kuminov, 15 years ago

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.
File size: 9.1 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 <math.h>
44
45#include "renderarea.h"
46#include "window.h"
47
48//! [0]
49const float Pi = 3.14159f;
50//! [0]
51
52//! [1]
53Window::Window()
54{
55 QPainterPath rectPath;
56 rectPath.moveTo(20.0, 30.0);
57 rectPath.lineTo(80.0, 30.0);
58 rectPath.lineTo(80.0, 70.0);
59 rectPath.lineTo(20.0, 70.0);
60 rectPath.closeSubpath();
61//! [1]
62
63//! [2]
64 QPainterPath roundRectPath;
65 roundRectPath.moveTo(80.0, 35.0);
66 roundRectPath.arcTo(70.0, 30.0, 10.0, 10.0, 0.0, 90.0);
67 roundRectPath.lineTo(25.0, 30.0);
68 roundRectPath.arcTo(20.0, 30.0, 10.0, 10.0, 90.0, 90.0);
69 roundRectPath.lineTo(20.0, 65.0);
70 roundRectPath.arcTo(20.0, 60.0, 10.0, 10.0, 180.0, 90.0);
71 roundRectPath.lineTo(75.0, 70.0);
72 roundRectPath.arcTo(70.0, 60.0, 10.0, 10.0, 270.0, 90.0);
73 roundRectPath.closeSubpath();
74//! [2]
75
76//! [3]
77 QPainterPath ellipsePath;
78 ellipsePath.moveTo(80.0, 50.0);
79 ellipsePath.arcTo(20.0, 30.0, 60.0, 40.0, 0.0, 360.0);
80//! [3]
81
82//! [4]
83 QPainterPath piePath;
84 piePath.moveTo(50.0, 50.0);
85 piePath.arcTo(20.0, 30.0, 60.0, 40.0, 60.0, 240.0);
86 piePath.closeSubpath();
87//! [4]
88
89//! [5]
90 QPainterPath polygonPath;
91 polygonPath.moveTo(10.0, 80.0);
92 polygonPath.lineTo(20.0, 10.0);
93 polygonPath.lineTo(80.0, 30.0);
94 polygonPath.lineTo(90.0, 70.0);
95 polygonPath.closeSubpath();
96//! [5]
97
98//! [6]
99 QPainterPath groupPath;
100 groupPath.moveTo(60.0, 40.0);
101 groupPath.arcTo(20.0, 20.0, 40.0, 40.0, 0.0, 360.0);
102 groupPath.moveTo(40.0, 40.0);
103 groupPath.lineTo(40.0, 80.0);
104 groupPath.lineTo(80.0, 80.0);
105 groupPath.lineTo(80.0, 40.0);
106 groupPath.closeSubpath();
107//! [6]
108
109//! [7]
110 QPainterPath textPath;
111 QFont timesFont("Times", 50);
112 timesFont.setStyleStrategy(QFont::ForceOutline);
113 textPath.addText(10, 70, timesFont, tr("Qt"));
114//! [7]
115
116//! [8]
117 QPainterPath bezierPath;
118 bezierPath.moveTo(20, 30);
119 bezierPath.cubicTo(80, 0, 50, 50, 80, 80);
120//! [8]
121
122//! [9]
123 QPainterPath starPath;
124 starPath.moveTo(90, 50);
125 for (int i = 1; i < 5; ++i) {
126 starPath.lineTo(50 + 40 * cos(0.8 * i * Pi),
127 50 + 40 * sin(0.8 * i * Pi));
128 }
129 starPath.closeSubpath();
130//! [9]
131
132//! [10]
133 renderAreas[0] = new RenderArea(rectPath);
134 renderAreas[1] = new RenderArea(roundRectPath);
135 renderAreas[2] = new RenderArea(ellipsePath);
136 renderAreas[3] = new RenderArea(piePath);
137 renderAreas[4] = new RenderArea(polygonPath);
138 renderAreas[5] = new RenderArea(groupPath);
139 renderAreas[6] = new RenderArea(textPath);
140 renderAreas[7] = new RenderArea(bezierPath);
141 renderAreas[8] = new RenderArea(starPath);
142 Q_ASSERT(NumRenderAreas == 9);
143//! [10]
144
145//! [11]
146 fillRuleComboBox = new QComboBox;
147 fillRuleComboBox->addItem(tr("Odd Even"), Qt::OddEvenFill);
148 fillRuleComboBox->addItem(tr("Winding"), Qt::WindingFill);
149
150 fillRuleLabel = new QLabel(tr("Fill &Rule:"));
151 fillRuleLabel->setBuddy(fillRuleComboBox);
152//! [11]
153
154//! [12]
155 fillColor1ComboBox = new QComboBox;
156 populateWithColors(fillColor1ComboBox);
157 fillColor1ComboBox->setCurrentIndex(
158 fillColor1ComboBox->findText("mediumslateblue"));
159
160 fillColor2ComboBox = new QComboBox;
161 populateWithColors(fillColor2ComboBox);
162 fillColor2ComboBox->setCurrentIndex(
163 fillColor2ComboBox->findText("cornsilk"));
164
165 fillGradientLabel = new QLabel(tr("&Fill Gradient:"));
166 fillGradientLabel->setBuddy(fillColor1ComboBox);
167
168 fillToLabel = new QLabel(tr("to"));
169 fillToLabel->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
170
171 penWidthSpinBox = new QSpinBox;
172 penWidthSpinBox->setRange(0, 20);
173
174 penWidthLabel = new QLabel(tr("&Pen Width:"));
175 penWidthLabel->setBuddy(penWidthSpinBox);
176
177 penColorComboBox = new QComboBox;
178 populateWithColors(penColorComboBox);
179 penColorComboBox->setCurrentIndex(
180 penColorComboBox->findText("darkslateblue"));
181
182 penColorLabel = new QLabel(tr("Pen &Color:"));
183 penColorLabel->setBuddy(penColorComboBox);
184
185 rotationAngleSpinBox = new QSpinBox;
186 rotationAngleSpinBox->setRange(0, 359);
187 rotationAngleSpinBox->setWrapping(true);
188 rotationAngleSpinBox->setSuffix("\xB0");
189
190 rotationAngleLabel = new QLabel(tr("&Rotation Angle:"));
191 rotationAngleLabel->setBuddy(rotationAngleSpinBox);
192//! [12]
193
194//! [16]
195 connect(fillRuleComboBox, SIGNAL(activated(int)),
196 this, SLOT(fillRuleChanged()));
197 connect(fillColor1ComboBox, SIGNAL(activated(int)),
198 this, SLOT(fillGradientChanged()));
199 connect(fillColor2ComboBox, SIGNAL(activated(int)),
200 this, SLOT(fillGradientChanged()));
201 connect(penColorComboBox, SIGNAL(activated(int)),
202 this, SLOT(penColorChanged()));
203
204 for (int i = 0; i < NumRenderAreas; ++i) {
205 connect(penWidthSpinBox, SIGNAL(valueChanged(int)),
206 renderAreas[i], SLOT(setPenWidth(int)));
207 connect(rotationAngleSpinBox, SIGNAL(valueChanged(int)),
208 renderAreas[i], SLOT(setRotationAngle(int)));
209 }
210
211//! [16] //! [17]
212 QGridLayout *topLayout = new QGridLayout;
213 for (int i = 0; i < NumRenderAreas; ++i)
214 topLayout->addWidget(renderAreas[i], i / 3, i % 3);
215
216 QGridLayout *mainLayout = new QGridLayout;
217 mainLayout->addLayout(topLayout, 0, 0, 1, 4);
218 mainLayout->addWidget(fillRuleLabel, 1, 0);
219 mainLayout->addWidget(fillRuleComboBox, 1, 1, 1, 3);
220 mainLayout->addWidget(fillGradientLabel, 2, 0);
221 mainLayout->addWidget(fillColor1ComboBox, 2, 1);
222 mainLayout->addWidget(fillToLabel, 2, 2);
223 mainLayout->addWidget(fillColor2ComboBox, 2, 3);
224 mainLayout->addWidget(penWidthLabel, 3, 0);
225 mainLayout->addWidget(penWidthSpinBox, 3, 1, 1, 3);
226 mainLayout->addWidget(penColorLabel, 4, 0);
227 mainLayout->addWidget(penColorComboBox, 4, 1, 1, 3);
228 mainLayout->addWidget(rotationAngleLabel, 5, 0);
229 mainLayout->addWidget(rotationAngleSpinBox, 5, 1, 1, 3);
230 setLayout(mainLayout);
231//! [17]
232
233//! [18]
234 fillRuleChanged();
235 fillGradientChanged();
236 penColorChanged();
237 penWidthSpinBox->setValue(2);
238
239 setWindowTitle(tr("Painter Paths"));
240}
241//! [18]
242
243//! [19]
244void Window::fillRuleChanged()
245{
246 Qt::FillRule rule = (Qt::FillRule)currentItemData(fillRuleComboBox).toInt();
247
248 for (int i = 0; i < NumRenderAreas; ++i)
249 renderAreas[i]->setFillRule(rule);
250}
251//! [19]
252
253//! [20]
254void Window::fillGradientChanged()
255{
256 QColor color1 = qvariant_cast<QColor>(currentItemData(fillColor1ComboBox));
257 QColor color2 = qvariant_cast<QColor>(currentItemData(fillColor2ComboBox));
258
259 for (int i = 0; i < NumRenderAreas; ++i)
260 renderAreas[i]->setFillGradient(color1, color2);
261}
262//! [20]
263
264//! [21]
265void Window::penColorChanged()
266{
267 QColor color = qvariant_cast<QColor>(currentItemData(penColorComboBox));
268
269 for (int i = 0; i < NumRenderAreas; ++i)
270 renderAreas[i]->setPenColor(color);
271}
272//! [21]
273
274//! [22]
275void Window::populateWithColors(QComboBox *comboBox)
276{
277 QStringList colorNames = QColor::colorNames();
278 foreach (QString name, colorNames)
279 comboBox->addItem(name, QColor(name));
280}
281//! [22]
282
283//! [23]
284QVariant Window::currentItemData(QComboBox *comboBox)
285{
286 return comboBox->itemData(comboBox->currentIndex());
287}
288//! [23]
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