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Diffstat (limited to 'examples/painting/basicdrawing/window.cpp')
| -rw-r--r-- | examples/painting/basicdrawing/window.cpp | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/examples/painting/basicdrawing/window.cpp b/examples/painting/basicdrawing/window.cpp new file mode 100644 index 0000000..8640162 --- /dev/null +++ b/examples/painting/basicdrawing/window.cpp @@ -0,0 +1,262 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> + +#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 Style:")); + brushStyleLabel->setBuddy(brushStyleComboBox); +//! [4] + +//! [5] + otherOptionsLabel = new QLabel(tr("Other 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->setRowMinimumHeight(1, 6); + mainLayout->addWidget(shapeLabel, 2, 1, Qt::AlignRight); + mainLayout->addWidget(shapeComboBox, 2, 2); + mainLayout->addWidget(penWidthLabel, 3, 1, Qt::AlignRight); + mainLayout->addWidget(penWidthSpinBox, 3, 2); + mainLayout->addWidget(penStyleLabel, 4, 1, Qt::AlignRight); + mainLayout->addWidget(penStyleComboBox, 4, 2); + mainLayout->addWidget(penCapLabel, 5, 1, Qt::AlignRight); + mainLayout->addWidget(penCapComboBox, 5, 2); + mainLayout->addWidget(penJoinLabel, 6, 1, Qt::AlignRight); + mainLayout->addWidget(penJoinComboBox, 6, 2); + mainLayout->addWidget(brushStyleLabel, 7, 1, Qt::AlignRight); + mainLayout->addWidget(brushStyleComboBox, 7, 2); + mainLayout->setRowMinimumHeight(8, 6); + mainLayout->addWidget(otherOptionsLabel, 9, 1, Qt::AlignRight); + mainLayout->addWidget(antialiasingCheckBox, 9, 2); + mainLayout->addWidget(transformationsCheckBox, 10, 2); + 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] |