/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the examples of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. 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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." ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "renderarea.h" #include "window.h" #include #include //! [1] Window::Window() { QPainterPath rectPath; rectPath.moveTo(20.0, 30.0); rectPath.lineTo(80.0, 30.0); rectPath.lineTo(80.0, 70.0); rectPath.lineTo(20.0, 70.0); rectPath.closeSubpath(); //! [1] //! [2] QPainterPath roundRectPath; roundRectPath.moveTo(80.0, 35.0); roundRectPath.arcTo(70.0, 30.0, 10.0, 10.0, 0.0, 90.0); roundRectPath.lineTo(25.0, 30.0); roundRectPath.arcTo(20.0, 30.0, 10.0, 10.0, 90.0, 90.0); roundRectPath.lineTo(20.0, 65.0); roundRectPath.arcTo(20.0, 60.0, 10.0, 10.0, 180.0, 90.0); roundRectPath.lineTo(75.0, 70.0); roundRectPath.arcTo(70.0, 60.0, 10.0, 10.0, 270.0, 90.0); roundRectPath.closeSubpath(); //! [2] //! [3] QPainterPath ellipsePath; ellipsePath.moveTo(80.0, 50.0); ellipsePath.arcTo(20.0, 30.0, 60.0, 40.0, 0.0, 360.0); //! [3] //! [4] QPainterPath piePath; piePath.moveTo(50.0, 50.0); piePath.arcTo(20.0, 30.0, 60.0, 40.0, 60.0, 240.0); piePath.closeSubpath(); //! [4] //! [5] QPainterPath polygonPath; polygonPath.moveTo(10.0, 80.0); polygonPath.lineTo(20.0, 10.0); polygonPath.lineTo(80.0, 30.0); polygonPath.lineTo(90.0, 70.0); polygonPath.closeSubpath(); //! [5] //! [6] QPainterPath groupPath; groupPath.moveTo(60.0, 40.0); groupPath.arcTo(20.0, 20.0, 40.0, 40.0, 0.0, 360.0); groupPath.moveTo(40.0, 40.0); groupPath.lineTo(40.0, 80.0); groupPath.lineTo(80.0, 80.0); groupPath.lineTo(80.0, 40.0); groupPath.closeSubpath(); //! [6] //! [7] QPainterPath textPath; QFont timesFont("Times", 50); timesFont.setStyleStrategy(QFont::ForceOutline); textPath.addText(10, 70, timesFont, tr("Qt")); //! [7] //! [8] QPainterPath bezierPath; bezierPath.moveTo(20, 30); bezierPath.cubicTo(80, 0, 50, 50, 80, 80); //! [8] //! [9] QPainterPath starPath; starPath.moveTo(90, 50); for (int i = 1; i < 5; ++i) { starPath.lineTo(50 + 40 * std::cos(0.8 * i * M_PI), 50 + 40 * std::sin(0.8 * i * M_PI)); } starPath.closeSubpath(); //! [9] //! [10] renderAreas.push_back(new RenderArea(rectPath)); renderAreas.push_back(new RenderArea(roundRectPath)); renderAreas.push_back(new RenderArea(ellipsePath)); renderAreas.push_back(new RenderArea(piePath)); renderAreas.push_back(new RenderArea(polygonPath)); renderAreas.push_back(new RenderArea(groupPath)); renderAreas.push_back(new RenderArea(textPath)); renderAreas.push_back(new RenderArea(bezierPath)); renderAreas.push_back(new RenderArea(starPath)); //! [10] //! [11] fillRuleComboBox = new QComboBox; fillRuleComboBox->addItem(tr("Odd Even"), Qt::OddEvenFill); fillRuleComboBox->addItem(tr("Winding"), Qt::WindingFill); fillRuleLabel = new QLabel(tr("Fill &Rule:")); fillRuleLabel->setBuddy(fillRuleComboBox); //! [11] //! [12] fillColor1ComboBox = new QComboBox; populateWithColors(fillColor1ComboBox); fillColor1ComboBox->setCurrentIndex(fillColor1ComboBox->findText("mediumslateblue")); fillColor2ComboBox = new QComboBox; populateWithColors(fillColor2ComboBox); fillColor2ComboBox->setCurrentIndex(fillColor2ComboBox->findText("cornsilk")); fillGradientLabel = new QLabel(tr("&Fill Gradient:")); fillGradientLabel->setBuddy(fillColor1ComboBox); fillToLabel = new QLabel(tr("to")); fillToLabel->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed); penWidthSpinBox = new QSpinBox; penWidthSpinBox->setRange(0, 20); penWidthLabel = new QLabel(tr("&Pen Width:")); penWidthLabel->setBuddy(penWidthSpinBox); penColorComboBox = new QComboBox; populateWithColors(penColorComboBox); penColorComboBox->setCurrentIndex(penColorComboBox->findText("darkslateblue")); penColorLabel = new QLabel(tr("Pen &Color:")); penColorLabel->setBuddy(penColorComboBox); rotationAngleSpinBox = new QSpinBox; rotationAngleSpinBox->setRange(0, 359); rotationAngleSpinBox->setWrapping(true); rotationAngleSpinBox->setSuffix(QLatin1String("\xB0")); rotationAngleLabel = new QLabel(tr("&Rotation Angle:")); rotationAngleLabel->setBuddy(rotationAngleSpinBox); //! [12] //! [16] connect(fillRuleComboBox, SIGNAL(activated(int)), this, SLOT(fillRuleChanged())); connect(fillColor1ComboBox, SIGNAL(activated(int)), this, SLOT(fillGradientChanged())); connect(fillColor2ComboBox, SIGNAL(activated(int)), this, SLOT(fillGradientChanged())); connect(penColorComboBox, SIGNAL(activated(int)), this, SLOT(penColorChanged())); for(QList::iterator it = renderAreas.begin(); it != renderAreas.end(); it++) { connect(penWidthSpinBox, SIGNAL(valueChanged(int)), *it, SLOT(setPenWidth(int))); connect(rotationAngleSpinBox, SIGNAL(valueChanged(int)), *it, SLOT(setRotationAngle(int))); } //! [16] //! [17] QGridLayout *topLayout = new QGridLayout; int i=0; for(QList::iterator it = renderAreas.begin(); it != renderAreas.end(); it++, i++) topLayout->addWidget(*it, i / 3, i % 3); QGridLayout *mainLayout = new QGridLayout; mainLayout->addLayout(topLayout, 0, 0, 1, 4); mainLayout->addWidget(fillRuleLabel, 1, 0); mainLayout->addWidget(fillRuleComboBox, 1, 1, 1, 3); mainLayout->addWidget(fillGradientLabel, 2, 0); mainLayout->addWidget(fillColor1ComboBox, 2, 1); mainLayout->addWidget(fillToLabel, 2, 2); mainLayout->addWidget(fillColor2ComboBox, 2, 3); mainLayout->addWidget(penWidthLabel, 3, 0); mainLayout->addWidget(penWidthSpinBox, 3, 1, 1, 3); mainLayout->addWidget(penColorLabel, 4, 0); mainLayout->addWidget(penColorComboBox, 4, 1, 1, 3); mainLayout->addWidget(rotationAngleLabel, 5, 0); mainLayout->addWidget(rotationAngleSpinBox, 5, 1, 1, 3); setLayout(mainLayout); //! [17] //! [18] fillRuleChanged(); fillGradientChanged(); penColorChanged(); penWidthSpinBox->setValue(2); setWindowTitle(tr("Painter Paths")); } //! [18] //! [19] void Window::fillRuleChanged() { Qt::FillRule rule = (Qt::FillRule)currentItemData(fillRuleComboBox).toInt(); for (QList::iterator it = renderAreas.begin(); it != renderAreas.end(); ++it) (*it)->setFillRule(rule); } //! [19] //! [20] void Window::fillGradientChanged() { QColor color1 = qvariant_cast(currentItemData(fillColor1ComboBox)); QColor color2 = qvariant_cast(currentItemData(fillColor2ComboBox)); for (QList::iterator it = renderAreas.begin(); it != renderAreas.end(); ++it) (*it)->setFillGradient(color1, color2); } //! [20] //! [21] void Window::penColorChanged() { QColor color = qvariant_cast(currentItemData(penColorComboBox)); for (QList::iterator it = renderAreas.begin(); it != renderAreas.end(); ++it) (*it)->setPenColor(color); } //! [21] //! [22] void Window::populateWithColors(QComboBox *comboBox) { QStringList colorNames = QColor::colorNames(); foreach (QString name, colorNames) comboBox->addItem(name, QColor(name)); } //! [22] //! [23] QVariant Window::currentItemData(QComboBox *comboBox) { return comboBox->itemData(comboBox->currentIndex()); } //! [23]