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Diffstat (limited to 'examples/widgets/graphicsview/padnavigator/padnavigator.cpp')
| -rw-r--r-- | examples/widgets/graphicsview/padnavigator/padnavigator.cpp | 326 |
1 files changed, 0 insertions, 326 deletions
diff --git a/examples/widgets/graphicsview/padnavigator/padnavigator.cpp b/examples/widgets/graphicsview/padnavigator/padnavigator.cpp deleted file mode 100644 index b9ce2a47ca..0000000000 --- a/examples/widgets/graphicsview/padnavigator/padnavigator.cpp +++ /dev/null @@ -1,326 +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 "flippablepad.h" -#include "padnavigator.h" -#include "splashitem.h" - -#include <QEventTransition> -#include <QGraphicsProxyWidget> -#include <QGraphicsRotation> -#include <QHistoryState> -#include <QKeyEventTransition> -#include <QParallelAnimationGroup> -#include <QPropertyAnimation> -#include <QSequentialAnimationGroup> -#include <QStateMachine> - -#ifndef QT_NO_OPENGL -#include <QOpenGLWidget> -#endif - -//! [0] -PadNavigator::PadNavigator(const QSize &size, QWidget *parent) - : QGraphicsView(parent) -{ -//! [0] -//! [1] - // Splash item - SplashItem *splash = new SplashItem; - splash->setZValue(1); -//! [1] - -//! [2] - // Pad item - FlippablePad *pad = new FlippablePad(size); - QGraphicsRotation *flipRotation = new QGraphicsRotation(pad); - QGraphicsRotation *xRotation = new QGraphicsRotation(pad); - QGraphicsRotation *yRotation = new QGraphicsRotation(pad); - flipRotation->setAxis(Qt::YAxis); - xRotation->setAxis(Qt::YAxis); - yRotation->setAxis(Qt::XAxis); - pad->setTransformations(QList<QGraphicsTransform *>() - << flipRotation - << xRotation << yRotation); -//! [2] - -//! [3] - // Back (proxy widget) item - QGraphicsProxyWidget *backItem = new QGraphicsProxyWidget(pad); - QWidget *widget = new QWidget; - form.setupUi(widget); - form.hostName->setFocus(); - backItem->setWidget(widget); - backItem->setVisible(false); - backItem->setFocus(); - backItem->setCacheMode(QGraphicsItem::ItemCoordinateCache); - const QRectF r = backItem->rect(); - backItem->setTransform(QTransform() - .rotate(180, Qt::YAxis) - .translate(-r.width()/2, -r.height()/2)); -//! [3] - -//! [4] - // Selection item - RoundRectItem *selectionItem = new RoundRectItem(QRectF(-60, -60, 120, 120), Qt::gray, pad); - selectionItem->setZValue(0.5); -//! [4] - -//! [5] - // Splash animations - QPropertyAnimation *smoothSplashMove = new QPropertyAnimation(splash, "y"); - QPropertyAnimation *smoothSplashOpacity = new QPropertyAnimation(splash, "opacity"); - smoothSplashMove->setEasingCurve(QEasingCurve::InQuad); - smoothSplashMove->setDuration(250); - smoothSplashOpacity->setDuration(250); -//! [5] - -//! [6] - // Selection animation - QPropertyAnimation *smoothXSelection = new QPropertyAnimation(selectionItem, "x"); - QPropertyAnimation *smoothYSelection = new QPropertyAnimation(selectionItem, "y"); - QPropertyAnimation *smoothXRotation = new QPropertyAnimation(xRotation, "angle"); - QPropertyAnimation *smoothYRotation = new QPropertyAnimation(yRotation, "angle"); - smoothXSelection->setDuration(125); - smoothYSelection->setDuration(125); - smoothXRotation->setDuration(125); - smoothYRotation->setDuration(125); - smoothXSelection->setEasingCurve(QEasingCurve::InOutQuad); - smoothYSelection->setEasingCurve(QEasingCurve::InOutQuad); - smoothXRotation->setEasingCurve(QEasingCurve::InOutQuad); - smoothYRotation->setEasingCurve(QEasingCurve::InOutQuad); -//! [6] - -//! [7] - // Flip animation setup - QPropertyAnimation *smoothFlipRotation = new QPropertyAnimation(flipRotation, "angle"); - QPropertyAnimation *smoothFlipScale = new QPropertyAnimation(pad, "scale"); - QPropertyAnimation *smoothFlipXRotation = new QPropertyAnimation(xRotation, "angle"); - QPropertyAnimation *smoothFlipYRotation = new QPropertyAnimation(yRotation, "angle"); - QParallelAnimationGroup *flipAnimation = new QParallelAnimationGroup(this); - smoothFlipScale->setDuration(500); - smoothFlipRotation->setDuration(500); - smoothFlipXRotation->setDuration(500); - smoothFlipYRotation->setDuration(500); - smoothFlipScale->setEasingCurve(QEasingCurve::InOutQuad); - smoothFlipRotation->setEasingCurve(QEasingCurve::InOutQuad); - smoothFlipXRotation->setEasingCurve(QEasingCurve::InOutQuad); - smoothFlipYRotation->setEasingCurve(QEasingCurve::InOutQuad); - smoothFlipScale->setKeyValueAt(0, qvariant_cast<qreal>(1.0)); - smoothFlipScale->setKeyValueAt(0.5, qvariant_cast<qreal>(0.7)); - smoothFlipScale->setKeyValueAt(1, qvariant_cast<qreal>(1.0)); - flipAnimation->addAnimation(smoothFlipRotation); - flipAnimation->addAnimation(smoothFlipScale); - flipAnimation->addAnimation(smoothFlipXRotation); - flipAnimation->addAnimation(smoothFlipYRotation); -//! [7] - -//! [8] - // Flip animation delayed property assignment - QSequentialAnimationGroup *setVariablesSequence = new QSequentialAnimationGroup; - QPropertyAnimation *setFillAnimation = new QPropertyAnimation(pad, "fill"); - QPropertyAnimation *setBackItemVisibleAnimation = new QPropertyAnimation(backItem, "visible"); - QPropertyAnimation *setSelectionItemVisibleAnimation = new QPropertyAnimation(selectionItem, "visible"); - setFillAnimation->setDuration(0); - setBackItemVisibleAnimation->setDuration(0); - setSelectionItemVisibleAnimation->setDuration(0); - setVariablesSequence->addPause(250); - setVariablesSequence->addAnimation(setBackItemVisibleAnimation); - setVariablesSequence->addAnimation(setSelectionItemVisibleAnimation); - setVariablesSequence->addAnimation(setFillAnimation); - flipAnimation->addAnimation(setVariablesSequence); -//! [8] - -//! [9] - // Build the state machine - QStateMachine *stateMachine = new QStateMachine(this); - QState *splashState = new QState(stateMachine); - QState *frontState = new QState(stateMachine); - QHistoryState *historyState = new QHistoryState(frontState); - QState *backState = new QState(stateMachine); -//! [9] -//! [10] - frontState->assignProperty(pad, "fill", false); - frontState->assignProperty(splash, "opacity", 0.0); - frontState->assignProperty(backItem, "visible", false); - frontState->assignProperty(flipRotation, "angle", qvariant_cast<qreal>(0.0)); - frontState->assignProperty(selectionItem, "visible", true); - backState->assignProperty(pad, "fill", true); - backState->assignProperty(backItem, "visible", true); - backState->assignProperty(xRotation, "angle", qvariant_cast<qreal>(0.0)); - backState->assignProperty(yRotation, "angle", qvariant_cast<qreal>(0.0)); - backState->assignProperty(flipRotation, "angle", qvariant_cast<qreal>(180.0)); - backState->assignProperty(selectionItem, "visible", false); - stateMachine->addDefaultAnimation(smoothXRotation); - stateMachine->addDefaultAnimation(smoothYRotation); - stateMachine->addDefaultAnimation(smoothXSelection); - stateMachine->addDefaultAnimation(smoothYSelection); - stateMachine->setInitialState(splashState); -//! [10] - -//! [11] - // Transitions - QEventTransition *anyKeyTransition = new QEventTransition(this, QEvent::KeyPress, splashState); - anyKeyTransition->setTargetState(frontState); - anyKeyTransition->addAnimation(smoothSplashMove); - anyKeyTransition->addAnimation(smoothSplashOpacity); -//! [11] - -//! [12] - QKeyEventTransition *enterTransition = new QKeyEventTransition(this, QEvent::KeyPress, - Qt::Key_Enter, backState); - QKeyEventTransition *returnTransition = new QKeyEventTransition(this, QEvent::KeyPress, - Qt::Key_Return, backState); - QKeyEventTransition *backEnterTransition = new QKeyEventTransition(this, QEvent::KeyPress, - Qt::Key_Enter, frontState); - QKeyEventTransition *backReturnTransition = new QKeyEventTransition(this, QEvent::KeyPress, - Qt::Key_Return, frontState); - enterTransition->setTargetState(historyState); - returnTransition->setTargetState(historyState); - backEnterTransition->setTargetState(backState); - backReturnTransition->setTargetState(backState); - enterTransition->addAnimation(flipAnimation); - returnTransition->addAnimation(flipAnimation); - backEnterTransition->addAnimation(flipAnimation); - backReturnTransition->addAnimation(flipAnimation); -//! [12] - -//! [13] - // Create substates for each icon; store in temporary grid. - int columns = size.width(); - int rows = size.height(); - QVector< QVector< QState * > > stateGrid; - stateGrid.resize(rows); - for (int y = 0; y < rows; ++y) { - stateGrid[y].resize(columns); - for (int x = 0; x < columns; ++x) - stateGrid[y][x] = new QState(frontState); - } - frontState->setInitialState(stateGrid[0][0]); - selectionItem->setPos(pad->iconAt(0, 0)->pos()); -//! [13] - -//! [14] - // Enable key navigation using state transitions - for (int y = 0; y < rows; ++y) { - for (int x = 0; x < columns; ++x) { - QState *state = stateGrid[y][x]; - QKeyEventTransition *rightTransition = new QKeyEventTransition(this, QEvent::KeyPress, - Qt::Key_Right, state); - QKeyEventTransition *leftTransition = new QKeyEventTransition(this, QEvent::KeyPress, - Qt::Key_Left, state); - QKeyEventTransition *downTransition = new QKeyEventTransition(this, QEvent::KeyPress, - Qt::Key_Down, state); - QKeyEventTransition *upTransition = new QKeyEventTransition(this, QEvent::KeyPress, - Qt::Key_Up, state); - rightTransition->setTargetState(stateGrid[y][(x + 1) % columns]); - leftTransition->setTargetState(stateGrid[y][((x - 1) + columns) % columns]); - downTransition->setTargetState(stateGrid[(y + 1) % rows][x]); - upTransition->setTargetState(stateGrid[((y - 1) + rows) % rows][x]); -//! [14] -//! [15] - RoundRectItem *icon = pad->iconAt(x, y); - state->assignProperty(xRotation, "angle", -icon->x() / 6.0); - state->assignProperty(yRotation, "angle", icon->y() / 6.0); - state->assignProperty(selectionItem, "x", icon->x()); - state->assignProperty(selectionItem, "y", icon->y()); - frontState->assignProperty(icon, "visible", true); - backState->assignProperty(icon, "visible", false); - - QPropertyAnimation *setIconVisibleAnimation = new QPropertyAnimation(icon, "visible"); - setIconVisibleAnimation->setDuration(0); - setVariablesSequence->addAnimation(setIconVisibleAnimation); - } - } -//! [15] - -//! [16] - // Scene - QGraphicsScene *scene = new QGraphicsScene(this); - scene->setBackgroundBrush(QPixmap(":/images/blue_angle_swirl.jpg")); - scene->setItemIndexMethod(QGraphicsScene::NoIndex); - scene->addItem(pad); - scene->setSceneRect(scene->itemsBoundingRect()); - setScene(scene); -//! [16] - -//! [17] - // Adjust splash item to scene contents - const QRectF sbr = splash->boundingRect(); - splash->setPos(-sbr.width() / 2, scene->sceneRect().top() - 2); - frontState->assignProperty(splash, "y", splash->y() - 100.0); - scene->addItem(splash); -//! [17] - -//! [18] - // View - setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff); - setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); - setMinimumSize(50, 50); - setViewportUpdateMode(FullViewportUpdate); - setCacheMode(CacheBackground); - setRenderHints(QPainter::Antialiasing - | QPainter::SmoothPixmapTransform - | QPainter::TextAntialiasing); -#ifndef QT_NO_OPENGL - setViewport(new QOpenGLWidget); -#endif - - stateMachine->start(); -//! [18] -} - -//! [19] -void PadNavigator::resizeEvent(QResizeEvent *event) -{ - QGraphicsView::resizeEvent(event); - fitInView(scene()->sceneRect(), Qt::KeepAspectRatio); -} -//! [19] |