colorswatch.cpp Example File
demos/mainwindow/colorswatch.cpp
/****************************************************************************
**
** Copyright (C) 2004-2005 Trolltech AS. All rights reserved.
**
** This file is part of the documentation of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 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 GNU
** General Public Licensing requirements will be met:
** http://www.trolltech.com/products/qt/opensource.html
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://www.trolltech.com/products/qt/licensing.html or contact the
** sales department at sales@trolltech.com.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/
#include "colorswatch.h"
#include <QAction>
#include <QtEvents>
#include <QFrame>
#include <QMainWindow>
#include <QMenu>
#include <QPainter>
#include <QImage>
#include <QColor>
#include <QPainterPath>
#include <QtDebug>
QColor bgColorForName(const QString &name)
{
if (name == "Black")
return QColor("#D8D8D8");
else if (name == "White")
return QColor("#F1F1F1");
else if (name == "Red")
return QColor("#F1D8D8");
else if (name == "Green")
return QColor("#D8E4D8");
else if (name == "Blue")
return QColor("#D8D8F1");
else if (name == "Yellow")
return QColor("#F1F0D8");
return QColor();
}
QColor fgColorForName(const QString &name)
{
if (name == "Black")
return QColor("#6C6C6C");
else if (name == "White")
return QColor("#F8F8F8");
else if (name == "Red")
return QColor("#F86C6C");
else if (name == "Green")
return QColor("#6CB26C");
else if (name == "Blue")
return QColor("#6C6CF8");
else if (name == "Yellow")
return QColor("#F8F76C");
return QColor();
}
class ColorDock : public QFrame
{
public:
ColorDock(const QString &c, QWidget *parent)
: QFrame(parent)
, color(c)
{
}
protected:
void paintEvent(QPaintEvent *) {
QPainter p(this);
p.setRenderHint(QPainter::Antialiasing);
p.fillRect(rect(), bgColorForName(color));
extern void render_qt_text(QPainter *, int, int, const QColor &);
render_qt_text(&p, width(), height(), fgColorForName(color));
}
QString color;
};
ColorSwatch::ColorSwatch(const QString &colorName, QWidget *parent, Qt::WFlags flags)
: QDockWidget(parent, flags)
{
setObjectName(colorName + QLatin1String(" Dock Widget"));
setWindowTitle(objectName());
QFrame *swatch = new ColorDock(colorName, this);
swatch->setFrameStyle(QFrame::Box | QFrame::Sunken);
swatch->setMinimumSize(125, 75);
setWidget(swatch);
closableAction = new QAction(tr("Closable"), this);
closableAction->setCheckable(true);
connect(closableAction, SIGNAL(triggered(bool)), SLOT(changeClosable(bool)));
movableAction = new QAction(tr("Movable"), this);
movableAction->setCheckable(true);
connect(movableAction, SIGNAL(triggered(bool)), SLOT(changeMovable(bool)));
floatableAction = new QAction(tr("Floatable"), this);
floatableAction->setCheckable(true);
connect(floatableAction, SIGNAL(triggered(bool)), SLOT(changeFloatable(bool)));
floatingAction = new QAction(tr("Floating"), this);
floatingAction->setCheckable(true);
connect(floatingAction, SIGNAL(triggered(bool)), SLOT(changeFloating(bool)));
allowedAreasActions = new QActionGroup(this);
allowedAreasActions->setExclusive(false);
allowLeftAction = new QAction(tr("Allow on Left"), this);
allowLeftAction->setCheckable(true);
connect(allowLeftAction, SIGNAL(triggered(bool)), SLOT(allowLeft(bool)));
allowRightAction = new QAction(tr("Allow on Right"), this);
allowRightAction->setCheckable(true);
connect(allowRightAction, SIGNAL(triggered(bool)), SLOT(allowRight(bool)));
allowTopAction = new QAction(tr("Allow on Top"), this);
allowTopAction->setCheckable(true);
connect(allowTopAction, SIGNAL(triggered(bool)), SLOT(allowTop(bool)));
allowBottomAction = new QAction(tr("Allow on Bottom"), this);
allowBottomAction->setCheckable(true);
connect(allowBottomAction, SIGNAL(triggered(bool)), SLOT(allowBottom(bool)));
allowedAreasActions->addAction(allowLeftAction);
allowedAreasActions->addAction(allowRightAction);
allowedAreasActions->addAction(allowTopAction);
allowedAreasActions->addAction(allowBottomAction);
areaActions = new QActionGroup(this);
areaActions->setExclusive(true);
leftAction = new QAction(tr("Place on Left") , this);
leftAction->setCheckable(true);
connect(leftAction, SIGNAL(triggered(bool)), SLOT(placeLeft(bool)));
rightAction = new QAction(tr("Place on Right") , this);
rightAction->setCheckable(true);
connect(rightAction, SIGNAL(triggered(bool)), SLOT(placeRight(bool)));
topAction = new QAction(tr("Place on Top") , this);
topAction->setCheckable(true);
connect(topAction, SIGNAL(triggered(bool)), SLOT(placeTop(bool)));
bottomAction = new QAction(tr("Place on Bottom") , this);
bottomAction->setCheckable(true);
connect(bottomAction, SIGNAL(triggered(bool)), SLOT(placeBottom(bool)));
areaActions->addAction(leftAction);
areaActions->addAction(rightAction);
areaActions->addAction(topAction);
areaActions->addAction(bottomAction);
connect(movableAction, SIGNAL(triggered(bool)), areaActions, SLOT(setEnabled(bool)));
connect(movableAction, SIGNAL(triggered(bool)), allowedAreasActions, SLOT(setEnabled(bool)));
connect(floatableAction, SIGNAL(triggered(bool)), floatingAction, SLOT(setEnabled(bool)));
connect(floatingAction, SIGNAL(triggered(bool)), floatableAction, SLOT(setDisabled(bool)));
connect(movableAction, SIGNAL(triggered(bool)), floatableAction, SLOT(setEnabled(bool)));
menu = new QMenu(colorName, this);
menu->addAction(toggleViewAction());
menu->addSeparator();
menu->addAction(closableAction);
menu->addAction(movableAction);
menu->addAction(floatableAction);
menu->addAction(floatingAction);
menu->addSeparator();
menu->addActions(allowedAreasActions->actions());
menu->addSeparator();
menu->addActions(areaActions->actions());
if(colorName == "Black") {
leftAction->setShortcut(Qt::CTRL|Qt::Key_W);
rightAction->setShortcut(Qt::CTRL|Qt::Key_E);
toggleViewAction()->setShortcut(Qt::CTRL|Qt::Key_R);
}
}
void ColorSwatch::contextMenuEvent(QContextMenuEvent *event)
{
event->accept();
menu->exec(event->globalPos());
}
bool ColorSwatch::event(QEvent *e)
{
if (e->type() != QEvent::Polish)
return QDockWidget::event(e);
QMainWindow *mainWindow = qobject_cast<QMainWindow *>(parentWidget());
const Qt::DockWidgetArea area = mainWindow->dockWidgetArea(this);
const Qt::DockWidgetAreas areas = allowedAreas();
closableAction->setChecked(features() & QDockWidget::DockWidgetClosable);
if (windowType() == Qt::Drawer) {
floatableAction->setEnabled(false);
floatingAction->setEnabled(false);
movableAction->setEnabled(false);
} else {
floatableAction->setChecked(features() & QDockWidget::DockWidgetFloatable);
floatingAction->setChecked(isWindow());
// done after floating, to get 'floatable' correctly initialized
movableAction->setChecked(features() & QDockWidget::DockWidgetMovable);
}
allowLeftAction->setChecked(isAreaAllowed(Qt::LeftDockWidgetArea));
allowRightAction->setChecked(isAreaAllowed(Qt::RightDockWidgetArea));
allowTopAction->setChecked(isAreaAllowed(Qt::TopDockWidgetArea));
allowBottomAction->setChecked(isAreaAllowed(Qt::BottomDockWidgetArea));
if (allowedAreasActions->isEnabled()) {
allowLeftAction->setEnabled(area != Qt::LeftDockWidgetArea);
allowRightAction->setEnabled(area != Qt::RightDockWidgetArea);
allowTopAction->setEnabled(area != Qt::TopDockWidgetArea);
allowBottomAction->setEnabled(area != Qt::BottomDockWidgetArea);
}
leftAction->blockSignals(true);
rightAction->blockSignals(true);
topAction->blockSignals(true);
bottomAction->blockSignals(true);
leftAction->setChecked(area == Qt::LeftDockWidgetArea);
rightAction->setChecked(area == Qt::RightDockWidgetArea);
topAction->setChecked(area == Qt::TopDockWidgetArea);
bottomAction->setChecked(area == Qt::BottomDockWidgetArea);
leftAction->blockSignals(false);
rightAction->blockSignals(false);
topAction->blockSignals(false);
bottomAction->blockSignals(false);
if (areaActions->isEnabled()) {
leftAction->setEnabled(areas & Qt::LeftDockWidgetArea);
rightAction->setEnabled(areas & Qt::RightDockWidgetArea);
topAction->setEnabled(areas & Qt::TopDockWidgetArea);
bottomAction->setEnabled(areas & Qt::BottomDockWidgetArea);
}
return QDockWidget::event(e);
}
void ColorSwatch::allow(Qt::DockWidgetArea area, bool a)
{
Qt::DockWidgetAreas areas = allowedAreas();
areas = a ? areas | area : areas & ~area;
setAllowedAreas(areas);
if (areaActions->isEnabled()) {
leftAction->setEnabled(areas & Qt::LeftDockWidgetArea);
rightAction->setEnabled(areas & Qt::RightDockWidgetArea);
topAction->setEnabled(areas & Qt::TopDockWidgetArea);
bottomAction->setEnabled(areas & Qt::BottomDockWidgetArea);
}
}
void ColorSwatch::place(Qt::DockWidgetArea area, bool p)
{
if (!p) return;
QMainWindow *mainWindow = qobject_cast<QMainWindow *>(parentWidget());
mainWindow->addDockWidget(area, this);
if (allowedAreasActions->isEnabled()) {
allowLeftAction->setEnabled(area != Qt::LeftDockWidgetArea);
allowRightAction->setEnabled(area != Qt::RightDockWidgetArea);
allowTopAction->setEnabled(area != Qt::TopDockWidgetArea);
allowBottomAction->setEnabled(area != Qt::BottomDockWidgetArea);
}
}
void ColorSwatch::changeClosable(bool on)
{ setFeatures(on ? features() | DockWidgetClosable : features() & ~DockWidgetClosable); }
void ColorSwatch::changeMovable(bool on)
{ setFeatures(on ? features() | DockWidgetMovable : features() & ~DockWidgetMovable); }
void ColorSwatch::changeFloatable(bool on)
{ setFeatures(on ? features() | DockWidgetFloatable : features() & ~DockWidgetFloatable); }
void ColorSwatch::changeFloating(bool floating)
{ setFloating(floating); }
void ColorSwatch::allowLeft(bool a)
{ allow(Qt::LeftDockWidgetArea, a); }
void ColorSwatch::allowRight(bool a)
{ allow(Qt::RightDockWidgetArea, a); }
void ColorSwatch::allowTop(bool a)
{ allow(Qt::TopDockWidgetArea, a); }
void ColorSwatch::allowBottom(bool a)
{ allow(Qt::BottomDockWidgetArea, a); }
void ColorSwatch::placeLeft(bool p)
{ place(Qt::LeftDockWidgetArea, p); }
void ColorSwatch::placeRight(bool p)
{ place(Qt::RightDockWidgetArea, p); }
void ColorSwatch::placeTop(bool p)
{ place(Qt::TopDockWidgetArea, p); }
void ColorSwatch::placeBottom(bool p)
{ place(Qt::BottomDockWidgetArea, p); }
