283 lines
8.9 KiB
C++
283 lines
8.9 KiB
C++
/****************************************************************************
|
|
**
|
|
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
|
|
** All rights reserved.
|
|
** Contact: Nokia Corporation (qt-info@nokia.com)
|
|
**
|
|
** 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 <QLabel>
|
|
#include <QPainter>
|
|
#include <QPushButton>
|
|
#include <QApplication>
|
|
|
|
#include <QGraphicsView>
|
|
#include <QGraphicsScene>
|
|
#include <QGraphicsWidget>
|
|
#include <QGraphicsProxyWidget>
|
|
#include <QGraphicsAnchorLayout>
|
|
#include <QGraphicsSceneResizeEvent>
|
|
|
|
|
|
class GraphicsView : public QGraphicsView
|
|
{
|
|
public:
|
|
GraphicsView(QGraphicsScene *scene, QGraphicsWidget *widget) : QGraphicsView(scene), w(widget)
|
|
{
|
|
}
|
|
|
|
virtual void resizeEvent(QResizeEvent *event)
|
|
{
|
|
w->setGeometry(0, 0, event->size().width(), event->size().height());
|
|
}
|
|
|
|
QGraphicsWidget *w;
|
|
};
|
|
|
|
class PixmapWidget : public QGraphicsLayoutItem
|
|
{
|
|
|
|
public:
|
|
PixmapWidget(const QPixmap &pix) : QGraphicsLayoutItem()
|
|
{
|
|
original = new QGraphicsPixmapItem(pix);
|
|
setGraphicsItem(original);
|
|
original->show();
|
|
r = QRectF(QPointF(0, 0), pix.size());
|
|
}
|
|
|
|
~PixmapWidget()
|
|
{
|
|
setGraphicsItem(0);
|
|
delete original;
|
|
}
|
|
|
|
void setZValue(qreal z)
|
|
{
|
|
original->setZValue(z);
|
|
}
|
|
|
|
void setGeometry (const QRectF &rect)
|
|
{
|
|
original->scale(rect.width() / r.width(), rect.height() / r.height());
|
|
original->setPos(rect.x(), rect.y());
|
|
r = rect;
|
|
}
|
|
|
|
protected:
|
|
QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const
|
|
{
|
|
Q_UNUSED(constraint);
|
|
QSizeF sh;
|
|
switch (which) {
|
|
case Qt::MinimumSize:
|
|
sh = QSizeF(0, 0);
|
|
break;
|
|
case Qt::PreferredSize:
|
|
sh = QSizeF(50, 50);
|
|
break;
|
|
case Qt::MaximumSize:
|
|
sh = QSizeF(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return sh;
|
|
}
|
|
|
|
private:
|
|
QGraphicsPixmapItem *original;
|
|
QRectF r;
|
|
};
|
|
|
|
|
|
class PlaceWidget : public QGraphicsWidget
|
|
{
|
|
Q_OBJECT
|
|
|
|
public:
|
|
PlaceWidget(const QPixmap &pix) : QGraphicsWidget(), original(pix), scaled(pix)
|
|
{
|
|
}
|
|
|
|
void paint(QPainter *painter, const QStyleOptionGraphicsItem*, QWidget*)
|
|
{
|
|
QPointF reflection = QPointF();
|
|
reflection.setY(scaled.height() + 2);
|
|
|
|
painter->drawPixmap(QPointF(), scaled);
|
|
|
|
QPixmap tmp(scaled.size());
|
|
tmp.fill(Qt::transparent);
|
|
QPainter p(&tmp);
|
|
|
|
// create gradient
|
|
QPoint p1(scaled.width() / 2, 0);
|
|
QPoint p2(scaled.width() / 2, scaled.height());
|
|
QLinearGradient linearGrad(p1, p2);
|
|
linearGrad.setColorAt(0, QColor(0, 0, 0, 0));
|
|
linearGrad.setColorAt(0.65, QColor(0, 0, 0, 127));
|
|
linearGrad.setColorAt(1, QColor(0, 0, 0, 255));
|
|
|
|
// apply 'mask'
|
|
p.setBrush(linearGrad);
|
|
p.fillRect(0, 0, tmp.width(), tmp.height(), QBrush(linearGrad));
|
|
p.fillRect(0, 0, tmp.width(), tmp.height(), QBrush(linearGrad));
|
|
|
|
// paint the image flipped
|
|
p.setCompositionMode(QPainter::CompositionMode_DestinationOver);
|
|
p.drawPixmap(0, 0, QPixmap::fromImage(scaled.toImage().mirrored(false, true)));
|
|
p.end();
|
|
|
|
painter->drawPixmap(reflection, tmp);
|
|
}
|
|
|
|
void resizeEvent(QGraphicsSceneResizeEvent *event)
|
|
{
|
|
QSize newSize = event->newSize().toSize();
|
|
newSize.setHeight(newSize.height() / 2);
|
|
scaled = original.scaled(newSize);
|
|
}
|
|
|
|
QRectF boundingRect() const
|
|
{
|
|
QSize size(scaled.width(), scaled.height() * 2 + 2);
|
|
return QRectF(QPointF(0, 0), size);
|
|
}
|
|
|
|
private:
|
|
QPixmap original;
|
|
QPixmap scaled;
|
|
};
|
|
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
Q_INIT_RESOURCE(weatheranchorlayout);
|
|
|
|
QApplication app(argc, argv);
|
|
|
|
QGraphicsScene scene;
|
|
#if defined(Q_OS_SYMBIAN)
|
|
#else
|
|
scene.setSceneRect(0, 0, 800, 480);
|
|
#endif
|
|
|
|
// pixmaps widgets
|
|
PixmapWidget *title = new PixmapWidget(QPixmap(":/images/title.jpg"));
|
|
PlaceWidget *place = new PlaceWidget(QPixmap(":/images/place.jpg"));
|
|
PixmapWidget *details = new PixmapWidget(QPixmap(":/images/5days.jpg"));
|
|
PixmapWidget *sunnyWeather = new PixmapWidget(QPixmap(":/images/weather-few-clouds.png"));
|
|
PixmapWidget *tabbar = new PixmapWidget(QPixmap(":/images/tabbar.jpg"));
|
|
|
|
|
|
// setup sizes
|
|
title->setPreferredSize(QSizeF(348, 45));
|
|
title->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
|
|
|
|
place->setPreferredSize(QSizeF(96, 72));
|
|
place->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
|
|
|
|
details->setMinimumSize(QSizeF(200, 112));
|
|
details->setPreferredSize(QSizeF(200, 112));
|
|
details->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
|
|
|
|
tabbar->setPreferredSize(QSizeF(70, 24));
|
|
tabbar->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
|
|
|
|
sunnyWeather->setPreferredSize(QSizeF(128, 97));
|
|
sunnyWeather->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
|
|
sunnyWeather->setZValue(9999);
|
|
|
|
// start anchor layout
|
|
QGraphicsAnchorLayout *l = new QGraphicsAnchorLayout;
|
|
l->setSpacing(0);
|
|
|
|
// setup the main widget
|
|
QGraphicsWidget *w = new QGraphicsWidget(0, Qt::Window);
|
|
QPalette p;
|
|
p.setColor(QPalette::Window, Qt::black);
|
|
w->setPalette(p);
|
|
w->setPos(20, 20);
|
|
w->setLayout(l);
|
|
|
|
// vertical anchors
|
|
QGraphicsAnchor *anchor = l->addAnchor(title, Qt::AnchorTop, l, Qt::AnchorTop);
|
|
anchor = l->addAnchor(place, Qt::AnchorTop, title, Qt::AnchorBottom);
|
|
anchor->setSpacing(12);
|
|
anchor = l->addAnchor(place, Qt::AnchorBottom, l, Qt::AnchorBottom);
|
|
anchor->setSpacing(12);
|
|
|
|
anchor = l->addAnchor(sunnyWeather, Qt::AnchorTop, title, Qt::AnchorTop);
|
|
anchor = l->addAnchor(sunnyWeather, Qt::AnchorBottom, l, Qt::AnchorVerticalCenter);
|
|
|
|
anchor = l->addAnchor(tabbar, Qt::AnchorTop, title, Qt::AnchorBottom);
|
|
anchor->setSpacing(5);
|
|
anchor = l->addAnchor(details, Qt::AnchorTop, tabbar, Qt::AnchorBottom);
|
|
anchor->setSpacing(2);
|
|
anchor = l->addAnchor(details, Qt::AnchorBottom, l, Qt::AnchorBottom);
|
|
anchor->setSpacing(12);
|
|
|
|
// horizontal anchors
|
|
anchor = l->addAnchor(l, Qt::AnchorLeft, title, Qt::AnchorLeft);
|
|
anchor = l->addAnchor(title, Qt::AnchorRight, l, Qt::AnchorRight);
|
|
|
|
anchor = l->addAnchor(place, Qt::AnchorLeft, l, Qt::AnchorLeft);
|
|
anchor->setSpacing(15);
|
|
anchor = l->addAnchor(place, Qt::AnchorRight, details, Qt::AnchorLeft);
|
|
anchor->setSpacing(35);
|
|
|
|
anchor = l->addAnchor(sunnyWeather, Qt::AnchorLeft, place, Qt::AnchorHorizontalCenter);
|
|
anchor = l->addAnchor(sunnyWeather, Qt::AnchorRight, l, Qt::AnchorHorizontalCenter);
|
|
|
|
anchor = l->addAnchor(tabbar, Qt::AnchorHorizontalCenter, details, Qt::AnchorHorizontalCenter);
|
|
anchor = l->addAnchor(details, Qt::AnchorRight, l, Qt::AnchorRight);
|
|
|
|
// QGV setup
|
|
scene.addItem(w);
|
|
scene.setBackgroundBrush(Qt::white);
|
|
#if defined(Q_OS_SYMBIAN)
|
|
GraphicsView *view = new GraphicsView(&scene, w);
|
|
view->showMaximized();
|
|
#else
|
|
QGraphicsView *view = new QGraphicsView(&scene);
|
|
view->show();
|
|
#endif
|
|
|
|
return app.exec();
|
|
}
|
|
|
|
#include "main.moc"
|