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Diffstat (limited to 'examples/widgets/painting/basicdrawing/window.cpp')
| -rw-r--r-- | examples/widgets/painting/basicdrawing/window.cpp | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/examples/widgets/painting/basicdrawing/window.cpp b/examples/widgets/painting/basicdrawing/window.cpp new file mode 100644 index 0000000000..9579e40ae2 --- /dev/null +++ b/examples/widgets/painting/basicdrawing/window.cpp @@ -0,0 +1,259 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. 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 <QtWidgets> + +#include "renderarea.h" +#include "window.h" + +//! [0] +const int IdRole = Qt::UserRole; +//! [0] + +//! [1] +Window::Window() +{ + renderArea = new RenderArea; + + shapeComboBox = new QComboBox; + shapeComboBox->addItem(tr("Polygon"), RenderArea::Polygon); + shapeComboBox->addItem(tr("Rectangle"), RenderArea::Rect); + shapeComboBox->addItem(tr("Rounded Rectangle"), RenderArea::RoundedRect); + shapeComboBox->addItem(tr("Ellipse"), RenderArea::Ellipse); + shapeComboBox->addItem(tr("Pie"), RenderArea::Pie); + shapeComboBox->addItem(tr("Chord"), RenderArea::Chord); + shapeComboBox->addItem(tr("Path"), RenderArea::Path); + shapeComboBox->addItem(tr("Line"), RenderArea::Line); + shapeComboBox->addItem(tr("Polyline"), RenderArea::Polyline); + shapeComboBox->addItem(tr("Arc"), RenderArea::Arc); + shapeComboBox->addItem(tr("Points"), RenderArea::Points); + shapeComboBox->addItem(tr("Text"), RenderArea::Text); + shapeComboBox->addItem(tr("Pixmap"), RenderArea::Pixmap); + + shapeLabel = new QLabel(tr("&Shape:")); + shapeLabel->setBuddy(shapeComboBox); +//! [1] + +//! [2] + penWidthSpinBox = new QSpinBox; + penWidthSpinBox->setRange(0, 20); + penWidthSpinBox->setSpecialValueText(tr("0 (cosmetic pen)")); + + penWidthLabel = new QLabel(tr("Pen &Width:")); + penWidthLabel->setBuddy(penWidthSpinBox); +//! [2] + +//! [3] + penStyleComboBox = new QComboBox; + penStyleComboBox->addItem(tr("Solid"), Qt::SolidLine); + penStyleComboBox->addItem(tr("Dash"), Qt::DashLine); + penStyleComboBox->addItem(tr("Dot"), Qt::DotLine); + penStyleComboBox->addItem(tr("Dash Dot"), Qt::DashDotLine); + penStyleComboBox->addItem(tr("Dash Dot Dot"), Qt::DashDotDotLine); + penStyleComboBox->addItem(tr("None"), Qt::NoPen); + + penStyleLabel = new QLabel(tr("&Pen Style:")); + penStyleLabel->setBuddy(penStyleComboBox); + + penCapComboBox = new QComboBox; + penCapComboBox->addItem(tr("Flat"), Qt::FlatCap); + penCapComboBox->addItem(tr("Square"), Qt::SquareCap); + penCapComboBox->addItem(tr("Round"), Qt::RoundCap); + + penCapLabel = new QLabel(tr("Pen &Cap:")); + penCapLabel->setBuddy(penCapComboBox); + + penJoinComboBox = new QComboBox; + penJoinComboBox->addItem(tr("Miter"), Qt::MiterJoin); + penJoinComboBox->addItem(tr("Bevel"), Qt::BevelJoin); + penJoinComboBox->addItem(tr("Round"), Qt::RoundJoin); + + penJoinLabel = new QLabel(tr("Pen &Join:")); + penJoinLabel->setBuddy(penJoinComboBox); +//! [3] + +//! [4] + brushStyleComboBox = new QComboBox; + brushStyleComboBox->addItem(tr("Linear Gradient"), + Qt::LinearGradientPattern); + brushStyleComboBox->addItem(tr("Radial Gradient"), + Qt::RadialGradientPattern); + brushStyleComboBox->addItem(tr("Conical Gradient"), + Qt::ConicalGradientPattern); + brushStyleComboBox->addItem(tr("Texture"), Qt::TexturePattern); + brushStyleComboBox->addItem(tr("Solid"), Qt::SolidPattern); + brushStyleComboBox->addItem(tr("Horizontal"), Qt::HorPattern); + brushStyleComboBox->addItem(tr("Vertical"), Qt::VerPattern); + brushStyleComboBox->addItem(tr("Cross"), Qt::CrossPattern); + brushStyleComboBox->addItem(tr("Backward Diagonal"), Qt::BDiagPattern); + brushStyleComboBox->addItem(tr("Forward Diagonal"), Qt::FDiagPattern); + brushStyleComboBox->addItem(tr("Diagonal Cross"), Qt::DiagCrossPattern); + brushStyleComboBox->addItem(tr("Dense 1"), Qt::Dense1Pattern); + brushStyleComboBox->addItem(tr("Dense 2"), Qt::Dense2Pattern); + brushStyleComboBox->addItem(tr("Dense 3"), Qt::Dense3Pattern); + brushStyleComboBox->addItem(tr("Dense 4"), Qt::Dense4Pattern); + brushStyleComboBox->addItem(tr("Dense 5"), Qt::Dense5Pattern); + brushStyleComboBox->addItem(tr("Dense 6"), Qt::Dense6Pattern); + brushStyleComboBox->addItem(tr("Dense 7"), Qt::Dense7Pattern); + brushStyleComboBox->addItem(tr("None"), Qt::NoBrush); + + brushStyleLabel = new QLabel(tr("&Brush:")); + brushStyleLabel->setBuddy(brushStyleComboBox); +//! [4] + +//! [5] + otherOptionsLabel = new QLabel(tr("Options:")); +//! [5] //! [6] + antialiasingCheckBox = new QCheckBox(tr("&Antialiasing")); +//! [6] //! [7] + transformationsCheckBox = new QCheckBox(tr("&Transformations")); +//! [7] + +//! [8] + connect(shapeComboBox, SIGNAL(activated(int)), + this, SLOT(shapeChanged())); + connect(penWidthSpinBox, SIGNAL(valueChanged(int)), + this, SLOT(penChanged())); + connect(penStyleComboBox, SIGNAL(activated(int)), + this, SLOT(penChanged())); + connect(penCapComboBox, SIGNAL(activated(int)), + this, SLOT(penChanged())); + connect(penJoinComboBox, SIGNAL(activated(int)), + this, SLOT(penChanged())); + connect(brushStyleComboBox, SIGNAL(activated(int)), + this, SLOT(brushChanged())); + connect(antialiasingCheckBox, SIGNAL(toggled(bool)), + renderArea, SLOT(setAntialiased(bool))); + connect(transformationsCheckBox, SIGNAL(toggled(bool)), + renderArea, SLOT(setTransformed(bool))); +//! [8] + +//! [9] + QGridLayout *mainLayout = new QGridLayout; +//! [9] //! [10] + mainLayout->setColumnStretch(0, 1); + mainLayout->setColumnStretch(3, 1); + mainLayout->addWidget(renderArea, 0, 0, 1, 4); + mainLayout->addWidget(shapeLabel, 2, 0, Qt::AlignRight); + mainLayout->addWidget(shapeComboBox, 2, 1); + mainLayout->addWidget(penWidthLabel, 3, 0, Qt::AlignRight); + mainLayout->addWidget(penWidthSpinBox, 3, 1); + mainLayout->addWidget(penStyleLabel, 4, 0, Qt::AlignRight); + mainLayout->addWidget(penStyleComboBox, 4, 1); + mainLayout->addWidget(penCapLabel, 3, 2, Qt::AlignRight); + mainLayout->addWidget(penCapComboBox, 3, 3); + mainLayout->addWidget(penJoinLabel, 2, 2, Qt::AlignRight); + mainLayout->addWidget(penJoinComboBox, 2, 3); + mainLayout->addWidget(brushStyleLabel, 4, 2, Qt::AlignRight); + mainLayout->addWidget(brushStyleComboBox, 4, 3); + mainLayout->addWidget(otherOptionsLabel, 5, 0, Qt::AlignRight); + mainLayout->addWidget(antialiasingCheckBox, 5, 1, 1, 1, Qt::AlignRight); + mainLayout->addWidget(transformationsCheckBox, 5, 2, 1, 2, Qt::AlignRight); + setLayout(mainLayout); + + shapeChanged(); + penChanged(); + brushChanged(); + antialiasingCheckBox->setChecked(true); + + setWindowTitle(tr("Basic Drawing")); +} +//! [10] + +//! [11] +void Window::shapeChanged() +{ + RenderArea::Shape shape = RenderArea::Shape(shapeComboBox->itemData( + shapeComboBox->currentIndex(), IdRole).toInt()); + renderArea->setShape(shape); +} +//! [11] + +//! [12] +void Window::penChanged() +{ + int width = penWidthSpinBox->value(); + Qt::PenStyle style = Qt::PenStyle(penStyleComboBox->itemData( + penStyleComboBox->currentIndex(), IdRole).toInt()); + Qt::PenCapStyle cap = Qt::PenCapStyle(penCapComboBox->itemData( + penCapComboBox->currentIndex(), IdRole).toInt()); + Qt::PenJoinStyle join = Qt::PenJoinStyle(penJoinComboBox->itemData( + penJoinComboBox->currentIndex(), IdRole).toInt()); + + renderArea->setPen(QPen(Qt::blue, width, style, cap, join)); +} +//! [12] + +//! [13] +void Window::brushChanged() +{ + Qt::BrushStyle style = Qt::BrushStyle(brushStyleComboBox->itemData( +//! [13] + brushStyleComboBox->currentIndex(), IdRole).toInt()); + +//! [14] + if (style == Qt::LinearGradientPattern) { + QLinearGradient linearGradient(0, 0, 100, 100); + linearGradient.setColorAt(0.0, Qt::white); + linearGradient.setColorAt(0.2, Qt::green); + linearGradient.setColorAt(1.0, Qt::black); + renderArea->setBrush(linearGradient); +//! [14] //! [15] + } else if (style == Qt::RadialGradientPattern) { + QRadialGradient radialGradient(50, 50, 50, 70, 70); + radialGradient.setColorAt(0.0, Qt::white); + radialGradient.setColorAt(0.2, Qt::green); + radialGradient.setColorAt(1.0, Qt::black); + renderArea->setBrush(radialGradient); + } else if (style == Qt::ConicalGradientPattern) { + QConicalGradient conicalGradient(50, 50, 150); + conicalGradient.setColorAt(0.0, Qt::white); + conicalGradient.setColorAt(0.2, Qt::green); + conicalGradient.setColorAt(1.0, Qt::black); + renderArea->setBrush(conicalGradient); +//! [15] //! [16] + } else if (style == Qt::TexturePattern) { + renderArea->setBrush(QBrush(QPixmap(":/images/brick.png"))); +//! [16] //! [17] + } else { + renderArea->setBrush(QBrush(Qt::green, style)); + } +} +//! [17] |