qt5base-lts/examples/widgets/graphicsview/dragdroprobot/robot.cpp
Gabriel de Dietrich 806dda08d6 Moving .qdoc files under examples/widgets/doc
Updated those .qdoc files to refer to the new relative examples
emplacement. Images and snippets to be moved later.

Also grouped all widgets related examples under widgets.

Change-Id: Ib29696e2d8948524537f53e8dda88f9ee26a597f
Reviewed-by: J-P Nurmi <j-p.nurmi@nokia.com>
2012-08-20 12:20:55 +02:00

308 lines
9.8 KiB
C++

/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** 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 <QtWidgets>
#include "robot.h"
//! [0]
RobotPart::RobotPart(QGraphicsItem *parent)
: QGraphicsObject(parent), color(Qt::lightGray), dragOver(false)
{
setAcceptDrops(true);
}
//! [0]
//! [1]
void RobotPart::dragEnterEvent(QGraphicsSceneDragDropEvent *event)
{
if (event->mimeData()->hasColor()) {
event->setAccepted(true);
dragOver = true;
update();
} else {
event->setAccepted(false);
}
}
//! [1]
//! [2]
void RobotPart::dragLeaveEvent(QGraphicsSceneDragDropEvent *event)
{
Q_UNUSED(event);
dragOver = false;
update();
}
//! [2]
//! [3]
void RobotPart::dropEvent(QGraphicsSceneDragDropEvent *event)
{
dragOver = false;
if (event->mimeData()->hasColor())
color = qvariant_cast<QColor>(event->mimeData()->colorData());
update();
}
//! [3]
//! [4]
RobotHead::RobotHead(QGraphicsItem *parent)
: RobotPart(parent)
{
}
//! [4]
//! [5]
QRectF RobotHead::boundingRect() const
{
return QRectF(-15, -50, 30, 50);
}
//! [5]
//! [6]
void RobotHead::paint(QPainter *painter,
const QStyleOptionGraphicsItem *option, QWidget *widget)
{
Q_UNUSED(option);
Q_UNUSED(widget);
if (pixmap.isNull()) {
painter->setBrush(dragOver ? color.light(130) : color);
painter->drawRoundedRect(-10, -30, 20, 30, 25, 25, Qt::RelativeSize);
painter->setBrush(Qt::white);
painter->drawEllipse(-7, -3 - 20, 7, 7);
painter->drawEllipse(0, -3 - 20, 7, 7);
painter->setBrush(Qt::black);
painter->drawEllipse(-5, -1 - 20, 2, 2);
painter->drawEllipse(2, -1 - 20, 2, 2);
painter->setPen(QPen(Qt::black, 2));
painter->setBrush(Qt::NoBrush);
painter->drawArc(-6, -2 - 20, 12, 15, 190 * 16, 160 * 16);
} else {
painter->scale(.2272, .2824);
painter->drawPixmap(QPointF(-15 * 4.4, -50 * 3.54), pixmap);
}
}
//! [6]
//! [7]
void RobotHead::dragEnterEvent(QGraphicsSceneDragDropEvent *event)
{
if (event->mimeData()->hasImage()) {
event->setAccepted(true);
dragOver = true;
update();
} else {
RobotPart::dragEnterEvent(event);
}
}
//! [7]
//! [8]
void RobotHead::dropEvent(QGraphicsSceneDragDropEvent *event)
{
if (event->mimeData()->hasImage()) {
dragOver = false;
pixmap = qvariant_cast<QPixmap>(event->mimeData()->imageData());
update();
} else {
RobotPart::dropEvent(event);
}
}
//! [8]
RobotTorso::RobotTorso(QGraphicsItem *parent)
: RobotPart(parent)
{
}
QRectF RobotTorso::boundingRect() const
{
return QRectF(-30, -20, 60, 60);
}
void RobotTorso::paint(QPainter *painter,
const QStyleOptionGraphicsItem *option, QWidget *widget)
{
Q_UNUSED(option);
Q_UNUSED(widget);
painter->setBrush(dragOver ? color.light(130) : color);
painter->drawRoundedRect(-20, -20, 40, 60, 25, 25, Qt::RelativeSize);
painter->drawEllipse(-25, -20, 20, 20);
painter->drawEllipse(5, -20, 20, 20);
painter->drawEllipse(-20, 22, 20, 20);
painter->drawEllipse(0, 22, 20, 20);
}
RobotLimb::RobotLimb(QGraphicsItem *parent)
: RobotPart(parent)
{
}
QRectF RobotLimb::boundingRect() const
{
return QRectF(-5, -5, 40, 10);
}
void RobotLimb::paint(QPainter *painter,
const QStyleOptionGraphicsItem *option, QWidget *widget)
{
Q_UNUSED(option);
Q_UNUSED(widget);
painter->setBrush(dragOver ? color.light(130) : color);
painter->drawRoundedRect(boundingRect(), 50, 50, Qt::RelativeSize);
painter->drawEllipse(-5, -5, 10, 10);
}
//! [10]
Robot::Robot(QGraphicsItem *parent)
: RobotPart(parent)
{
setFlag(ItemHasNoContents);
QGraphicsObject *torsoItem = new RobotTorso(this);
QGraphicsObject *headItem = new RobotHead(torsoItem);
QGraphicsObject *upperLeftArmItem = new RobotLimb(torsoItem);
QGraphicsObject *lowerLeftArmItem = new RobotLimb(upperLeftArmItem);
QGraphicsObject *upperRightArmItem = new RobotLimb(torsoItem);
QGraphicsObject *lowerRightArmItem = new RobotLimb(upperRightArmItem);
QGraphicsObject *upperRightLegItem = new RobotLimb(torsoItem);
QGraphicsObject *lowerRightLegItem = new RobotLimb(upperRightLegItem);
QGraphicsObject *upperLeftLegItem = new RobotLimb(torsoItem);
QGraphicsObject *lowerLeftLegItem = new RobotLimb(upperLeftLegItem);
//! [10]
//! [11]
headItem->setPos(0, -18);
upperLeftArmItem->setPos(-15, -10);
lowerLeftArmItem->setPos(30, 0);
upperRightArmItem->setPos(15, -10);
lowerRightArmItem->setPos(30, 0);
upperRightLegItem->setPos(10, 32);
lowerRightLegItem->setPos(30, 0);
upperLeftLegItem->setPos(-10, 32);
lowerLeftLegItem->setPos(30, 0);
//! [11]
//! [12]
QParallelAnimationGroup *animation = new QParallelAnimationGroup(this);
QPropertyAnimation *headAnimation = new QPropertyAnimation(headItem, "rotation");
headAnimation->setStartValue(20);
headAnimation->setEndValue(-20);
QPropertyAnimation *headScaleAnimation = new QPropertyAnimation(headItem, "scale");
headScaleAnimation->setEndValue(1.1);
animation->addAnimation(headAnimation);
animation->addAnimation(headScaleAnimation);
//! [12]
QPropertyAnimation *upperLeftArmAnimation = new QPropertyAnimation(upperLeftArmItem, "rotation");
upperLeftArmAnimation->setStartValue(190);
upperLeftArmAnimation->setEndValue(180);
animation->addAnimation(upperLeftArmAnimation);
QPropertyAnimation *lowerLeftArmAnimation = new QPropertyAnimation(lowerLeftArmItem, "rotation");
lowerLeftArmAnimation->setStartValue(50);
lowerLeftArmAnimation->setEndValue(10);
animation->addAnimation(lowerLeftArmAnimation);
QPropertyAnimation *upperRightArmAnimation = new QPropertyAnimation(upperRightArmItem, "rotation");
upperRightArmAnimation->setStartValue(300);
upperRightArmAnimation->setEndValue(310);
animation->addAnimation(upperRightArmAnimation);
QPropertyAnimation *lowerRightArmAnimation = new QPropertyAnimation(lowerRightArmItem, "rotation");
lowerRightArmAnimation->setStartValue(0);
lowerRightArmAnimation->setEndValue(-70);
animation->addAnimation(lowerRightArmAnimation);
QPropertyAnimation *upperLeftLegAnimation = new QPropertyAnimation(upperLeftLegItem, "rotation");
upperLeftLegAnimation->setStartValue(150);
upperLeftLegAnimation->setEndValue(80);
animation->addAnimation(upperLeftLegAnimation);
QPropertyAnimation *lowerLeftLegAnimation = new QPropertyAnimation(lowerLeftLegItem, "rotation");
lowerLeftLegAnimation->setStartValue(70);
lowerLeftLegAnimation->setEndValue(10);
animation->addAnimation(lowerLeftLegAnimation);
QPropertyAnimation *upperRightLegAnimation = new QPropertyAnimation(upperRightLegItem, "rotation");
upperRightLegAnimation->setStartValue(40);
upperRightLegAnimation->setEndValue(120);
animation->addAnimation(upperRightLegAnimation);
QPropertyAnimation *lowerRightLegAnimation = new QPropertyAnimation(lowerRightLegItem, "rotation");
lowerRightLegAnimation->setStartValue(10);
lowerRightLegAnimation->setEndValue(50);
animation->addAnimation(lowerRightLegAnimation);
QPropertyAnimation *torsoAnimation = new QPropertyAnimation(torsoItem, "rotation");
torsoAnimation->setStartValue(5);
torsoAnimation->setEndValue(-20);
animation->addAnimation(torsoAnimation);
//! [13]
for (int i = 0; i < animation->animationCount(); ++i) {
QPropertyAnimation *anim = qobject_cast<QPropertyAnimation *>(animation->animationAt(i));
anim->setEasingCurve(QEasingCurve::SineCurve);
anim->setDuration(2000);
}
animation->setLoopCount(-1);
animation->start();
//! [13]
}
//! [9]
QRectF Robot::boundingRect() const
{
return QRectF();
}
void Robot::paint(QPainter *painter,
const QStyleOptionGraphicsItem *option, QWidget *widget)
{
Q_UNUSED(painter);
Q_UNUSED(option);
Q_UNUSED(widget);
}
//! [9]