2011-04-27 10:05:43 +00:00
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/****************************************************************************
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**
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2015-01-28 08:44:43 +00:00
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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2011-04-27 10:05:43 +00:00
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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2015-02-13 11:15:33 +00:00
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** * Neither the name of The Qt Company Ltd nor the names of its
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** contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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2012-09-19 12:28:29 +00:00
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**
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2011-04-27 10:05:43 +00:00
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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2012-01-24 06:17:24 +00:00
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**
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2011-04-27 10:05:43 +00:00
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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2012-11-23 08:31:03 +00:00
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#include <QApplication>
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2011-04-27 10:05:43 +00:00
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#include <QLabel>
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#include <QPainter>
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#include <QPushButton>
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#include <QGraphicsAnchorLayout>
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2012-11-23 08:31:03 +00:00
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#include <QGraphicsProxyWidget>
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#include <QGraphicsScene>
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2011-04-27 10:05:43 +00:00
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#include <QGraphicsSceneResizeEvent>
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2012-11-23 08:31:03 +00:00
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#include <QGraphicsView>
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#include <QGraphicsWidget>
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2011-04-27 10:05:43 +00:00
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2011-04-27 17:16:41 +00:00
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class GraphicsView : public QGraphicsView
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{
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public:
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2012-11-23 08:31:03 +00:00
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GraphicsView(QGraphicsScene *scene, QGraphicsWidget *widget)
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: QGraphicsView(scene), w(widget)
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2011-04-27 17:16:41 +00:00
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{
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}
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2014-07-14 07:13:02 +00:00
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virtual void resizeEvent(QResizeEvent *event) Q_DECL_OVERRIDE
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2011-04-27 17:16:41 +00:00
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{
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w->setGeometry(0, 0, event->size().width(), event->size().height());
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}
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QGraphicsWidget *w;
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};
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2011-04-27 10:05:43 +00:00
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class PixmapWidget : public QGraphicsLayoutItem
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{
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public:
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PixmapWidget(const QPixmap &pix)
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: QGraphicsLayoutItem()
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2011-04-27 10:05:43 +00:00
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{
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original = new QGraphicsPixmapItem(pix);
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setGraphicsItem(original);
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original->show();
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r = QRectF(QPointF(0, 0), pix.size());
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}
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~PixmapWidget()
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{
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setGraphicsItem(0);
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delete original;
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}
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void setZValue(qreal z)
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{
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original->setZValue(z);
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}
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2014-07-14 07:13:02 +00:00
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void setGeometry (const QRectF &rect) Q_DECL_OVERRIDE
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2011-04-27 10:05:43 +00:00
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{
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original->setTransform(QTransform::fromScale(rect.width() / r.width(),
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rect.height() / r.height()), true);
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2011-04-27 10:05:43 +00:00
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original->setPos(rect.x(), rect.y());
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r = rect;
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}
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protected:
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QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const Q_DECL_OVERRIDE
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2011-04-27 10:05:43 +00:00
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{
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Q_UNUSED(constraint);
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QSizeF sh;
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switch (which) {
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case Qt::MinimumSize:
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sh = QSizeF(0, 0);
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break;
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case Qt::PreferredSize:
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sh = QSizeF(50, 50);
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break;
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case Qt::MaximumSize:
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sh = QSizeF(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX);
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break;
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default:
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break;
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}
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2012-11-23 08:31:03 +00:00
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return sh;
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2011-04-27 10:05:43 +00:00
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}
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private:
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QGraphicsPixmapItem *original;
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QRectF r;
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};
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class PlaceWidget : public QGraphicsWidget
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{
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Q_OBJECT
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public:
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2012-11-23 08:31:03 +00:00
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PlaceWidget(const QPixmap &pix)
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: QGraphicsWidget()
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, original(pix)
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, scaled(pix)
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2011-04-27 10:05:43 +00:00
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{
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}
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2014-07-14 07:13:02 +00:00
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void paint(QPainter *painter, const QStyleOptionGraphicsItem*, QWidget*) Q_DECL_OVERRIDE
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2011-04-27 10:05:43 +00:00
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{
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QPointF reflection = QPointF();
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reflection.setY(scaled.height() + 2);
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painter->drawPixmap(QPointF(), scaled);
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QPixmap tmp(scaled.size());
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tmp.fill(Qt::transparent);
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QPainter p(&tmp);
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// create gradient
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QPoint p1(scaled.width() / 2, 0);
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QPoint p2(scaled.width() / 2, scaled.height());
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QLinearGradient linearGrad(p1, p2);
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linearGrad.setColorAt(0, QColor(0, 0, 0, 0));
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linearGrad.setColorAt(0.65, QColor(0, 0, 0, 127));
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linearGrad.setColorAt(1, QColor(0, 0, 0, 255));
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// apply 'mask'
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p.setBrush(linearGrad);
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p.fillRect(0, 0, tmp.width(), tmp.height(), QBrush(linearGrad));
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p.fillRect(0, 0, tmp.width(), tmp.height(), QBrush(linearGrad));
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// paint the image flipped
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p.setCompositionMode(QPainter::CompositionMode_DestinationOver);
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p.drawPixmap(0, 0, QPixmap::fromImage(scaled.toImage().mirrored(false, true)));
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p.end();
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painter->drawPixmap(reflection, tmp);
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}
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2014-07-14 07:13:02 +00:00
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void resizeEvent(QGraphicsSceneResizeEvent *event) Q_DECL_OVERRIDE
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2011-04-27 10:05:43 +00:00
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{
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QSize newSize = event->newSize().toSize();
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newSize.setHeight(newSize.height() / 2);
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scaled = original.scaled(newSize);
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}
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2014-07-14 07:13:02 +00:00
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QRectF boundingRect() const Q_DECL_OVERRIDE
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2011-04-27 10:05:43 +00:00
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{
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QSize size(scaled.width(), scaled.height() * 2 + 2);
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return QRectF(QPointF(0, 0), size);
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}
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private:
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QPixmap original;
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QPixmap scaled;
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};
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2012-11-23 08:31:03 +00:00
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int main(int argc, char *argv[])
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2011-04-27 10:05:43 +00:00
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{
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Q_INIT_RESOURCE(weatheranchorlayout);
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QApplication app(argc, argv);
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QGraphicsScene scene;
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scene.setSceneRect(0, 0, 800, 480);
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// pixmaps widgets
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PixmapWidget *title = new PixmapWidget(QPixmap(":/images/title.jpg"));
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PlaceWidget *place = new PlaceWidget(QPixmap(":/images/place.jpg"));
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PixmapWidget *details = new PixmapWidget(QPixmap(":/images/5days.jpg"));
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PixmapWidget *sunnyWeather = new PixmapWidget(QPixmap(":/images/weather-few-clouds.png"));
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PixmapWidget *tabbar = new PixmapWidget(QPixmap(":/images/tabbar.jpg"));
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// setup sizes
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title->setPreferredSize(QSizeF(348, 45));
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title->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
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place->setPreferredSize(QSizeF(96, 72));
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place->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
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details->setMinimumSize(QSizeF(200, 112));
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details->setPreferredSize(QSizeF(200, 112));
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details->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
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tabbar->setPreferredSize(QSizeF(70, 24));
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tabbar->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
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sunnyWeather->setPreferredSize(QSizeF(128, 97));
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sunnyWeather->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
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sunnyWeather->setZValue(9999);
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// start anchor layout
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2012-11-23 08:31:03 +00:00
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QGraphicsAnchorLayout *layout = new QGraphicsAnchorLayout;
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layout->setSpacing(0);
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// setup the main widget
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QGraphicsWidget *widget = new QGraphicsWidget(0, Qt::Window);
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QPalette p;
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p.setColor(QPalette::Window, Qt::black);
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widget->setPalette(p);
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widget->setPos(20, 20);
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widget->setLayout(layout);
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2011-04-27 10:05:43 +00:00
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// vertical anchors
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QGraphicsAnchor *anchor = layout->addAnchor(title, Qt::AnchorTop, layout, Qt::AnchorTop);
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anchor = layout->addAnchor(place, Qt::AnchorTop, title, Qt::AnchorBottom);
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anchor->setSpacing(12);
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anchor = layout->addAnchor(place, Qt::AnchorBottom, layout, Qt::AnchorBottom);
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anchor->setSpacing(12);
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2012-11-23 08:31:03 +00:00
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anchor = layout->addAnchor(sunnyWeather, Qt::AnchorTop, title, Qt::AnchorTop);
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anchor = layout->addAnchor(sunnyWeather, Qt::AnchorBottom, layout, Qt::AnchorVerticalCenter);
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2011-04-27 10:05:43 +00:00
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2012-11-23 08:31:03 +00:00
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anchor = layout->addAnchor(tabbar, Qt::AnchorTop, title, Qt::AnchorBottom);
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2011-04-27 10:05:43 +00:00
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anchor->setSpacing(5);
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anchor = layout->addAnchor(details, Qt::AnchorTop, tabbar, Qt::AnchorBottom);
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anchor->setSpacing(2);
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2012-11-23 08:31:03 +00:00
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anchor = layout->addAnchor(details, Qt::AnchorBottom, layout, Qt::AnchorBottom);
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2011-04-27 10:05:43 +00:00
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anchor->setSpacing(12);
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// horizontal anchors
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2012-11-23 08:31:03 +00:00
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anchor = layout->addAnchor(layout, Qt::AnchorLeft, title, Qt::AnchorLeft);
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anchor = layout->addAnchor(title, Qt::AnchorRight, layout, Qt::AnchorRight);
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2011-04-27 10:05:43 +00:00
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2012-11-23 08:31:03 +00:00
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anchor = layout->addAnchor(place, Qt::AnchorLeft, layout, Qt::AnchorLeft);
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2011-04-27 10:05:43 +00:00
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anchor->setSpacing(15);
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2012-11-23 08:31:03 +00:00
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anchor = layout->addAnchor(place, Qt::AnchorRight, details, Qt::AnchorLeft);
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2011-04-27 10:05:43 +00:00
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anchor->setSpacing(35);
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2012-11-23 08:31:03 +00:00
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anchor = layout->addAnchor(sunnyWeather, Qt::AnchorLeft, place, Qt::AnchorHorizontalCenter);
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anchor = layout->addAnchor(sunnyWeather, Qt::AnchorRight, layout, Qt::AnchorHorizontalCenter);
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2011-04-27 10:05:43 +00:00
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2012-11-23 08:31:03 +00:00
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anchor = layout->addAnchor(tabbar, Qt::AnchorHorizontalCenter, details, Qt::AnchorHorizontalCenter);
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anchor = layout->addAnchor(details, Qt::AnchorRight, layout, Qt::AnchorRight);
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2011-04-27 10:05:43 +00:00
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// QGV setup
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scene.addItem(widget);
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scene.setBackgroundBrush(Qt::white);
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QGraphicsView *view = new QGraphicsView(&scene);
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view->show();
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return app.exec();
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}
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#include "main.moc"
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