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Diffstat (limited to 'examples/widgets/graphicsview/weatheranchorlayout/main.cpp')
| -rw-r--r-- | examples/widgets/graphicsview/weatheranchorlayout/main.cpp | 286 |
1 files changed, 0 insertions, 286 deletions
diff --git a/examples/widgets/graphicsview/weatheranchorlayout/main.cpp b/examples/widgets/graphicsview/weatheranchorlayout/main.cpp deleted file mode 100644 index 5c623b1d00..0000000000 --- a/examples/widgets/graphicsview/weatheranchorlayout/main.cpp +++ /dev/null @@ -1,286 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, 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 The Qt Company Ltd 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 <QApplication> -#include <QLabel> -#include <QGraphicsAnchorLayout> -#include <QGraphicsProxyWidget> -#include <QGraphicsScene> -#include <QGraphicsSceneResizeEvent> -#include <QGraphicsView> -#include <QGraphicsWidget> -#include <QPainter> -#include <QPushButton> - - -class GraphicsView : public QGraphicsView -{ -public: - GraphicsView(QGraphicsScene *scene, QGraphicsWidget *widget) - : QGraphicsView(scene), w(widget) - { - } - - void resizeEvent(QResizeEvent *event) override - { - 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)) - , r(QRectF(QPointF(0, 0), pix.size())) - { - setGraphicsItem(original); - original->show(); - } - - ~PixmapWidget() - { - setGraphicsItem(nullptr); - delete original; - } - - void setZValue(qreal z) - { - original->setZValue(z); - } - - void setGeometry(const QRectF &rect) override - { - original->setTransform(QTransform::fromScale(rect.width() / r.width(), - rect.height() / r.height()), true); - original->setPos(rect.x(), rect.y()); - r = rect; - } - -protected: - QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const override - { - 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 *) override - { - const QPointF reflection(0, 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) override - { - QSize newSize = event->newSize().toSize(); - newSize.setHeight(newSize.height() / 2); - scaled = original.scaled(newSize); - } - - QRectF boundingRect() const override - { - 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; - scene.setSceneRect(0, 0, 800, 480); - - // 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 *layout = new QGraphicsAnchorLayout; - layout->setSpacing(0); - - // setup the main widget - QGraphicsWidget *widget = new QGraphicsWidget(nullptr, Qt::Window); - QPalette p; - p.setColor(QPalette::Window, Qt::black); - widget->setPalette(p); - widget->setPos(20, 20); - widget->setLayout(layout); - - // vertical anchors - QGraphicsAnchor *anchor = layout->addAnchor(title, Qt::AnchorTop, layout, Qt::AnchorTop); - anchor = layout->addAnchor(place, Qt::AnchorTop, title, Qt::AnchorBottom); - anchor->setSpacing(12); - anchor = layout->addAnchor(place, Qt::AnchorBottom, layout, Qt::AnchorBottom); - anchor->setSpacing(12); - - anchor = layout->addAnchor(sunnyWeather, Qt::AnchorTop, title, Qt::AnchorTop); - anchor = layout->addAnchor(sunnyWeather, Qt::AnchorBottom, layout, Qt::AnchorVerticalCenter); - - anchor = layout->addAnchor(tabbar, Qt::AnchorTop, title, Qt::AnchorBottom); - anchor->setSpacing(5); - anchor = layout->addAnchor(details, Qt::AnchorTop, tabbar, Qt::AnchorBottom); - anchor->setSpacing(2); - anchor = layout->addAnchor(details, Qt::AnchorBottom, layout, Qt::AnchorBottom); - anchor->setSpacing(12); - - // horizontal anchors - anchor = layout->addAnchor(layout, Qt::AnchorLeft, title, Qt::AnchorLeft); - anchor = layout->addAnchor(title, Qt::AnchorRight, layout, Qt::AnchorRight); - - anchor = layout->addAnchor(place, Qt::AnchorLeft, layout, Qt::AnchorLeft); - anchor->setSpacing(15); - anchor = layout->addAnchor(place, Qt::AnchorRight, details, Qt::AnchorLeft); - anchor->setSpacing(35); - - anchor = layout->addAnchor(sunnyWeather, Qt::AnchorLeft, place, Qt::AnchorHorizontalCenter); - anchor = layout->addAnchor(sunnyWeather, Qt::AnchorRight, layout, Qt::AnchorHorizontalCenter); - - anchor = layout->addAnchor(tabbar, Qt::AnchorHorizontalCenter, details, Qt::AnchorHorizontalCenter); - anchor = layout->addAnchor(details, Qt::AnchorRight, layout, Qt::AnchorRight); - - // QGV setup - scene.addItem(widget); - scene.setBackgroundBrush(Qt::white); - QGraphicsView *view = new QGraphicsView(&scene); - view->show(); - - return app.exec(); -} - -#include "main.moc" |