f776595cc1
From Qt 5.7 -> tools & applications are lisenced under GPL v3 with some exceptions, see http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/ Updated license headers to use new GPL-EXCEPT header instead of LGPL21 one (in those files which will be under GPL 3 with exceptions) Change-Id: I42a473ddc97101492a60b9287d90979d9eb35ae1 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
248 lines
7.0 KiB
C++
248 lines
7.0 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the test suite of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "widget.h"
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#include "ui_widget.h"
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#include <QGraphicsOpacityEffect>
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#include <QPropertyAnimation>
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Widget::Widget(QWidget *parent) :
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QWidget(parent),
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ui(new Ui::Widget),
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previousSelectionCount(0)
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{
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ui->setupUi(this);
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effect = new QGraphicsOpacityEffect;
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effect->setOpacity(0.3);
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ui->groupBox->setGraphicsEffect(effect);
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fadeIn = new QPropertyAnimation(effect, "opacity");
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fadeIn->setDuration(200);
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fadeIn->setStartValue(0.3);
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fadeIn->setEndValue(1.);
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fadeOut = new QPropertyAnimation(effect, "opacity");
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fadeOut->setDuration(200);
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fadeOut->setStartValue(1.);
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fadeOut->setEndValue(0.3);
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scene = new CustomScene;
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scene->setSceneRect(-250,-250,500,500);
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ui->view->setScene(scene);
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scene->setBackgroundBrush(Qt::white);
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ui->view->setInteractive(true);
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ui->view->setDragMode(QGraphicsView::RubberBandDrag);
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ui->view->setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
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ui->view->setRenderHints( QPainter::SmoothPixmapTransform |
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QPainter::TextAntialiasing |
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QPainter::Antialiasing );
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rectBlue = new CustomItem(-100, -100, 50, 50, QColor(80, 80, 200));
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scene->addItem(rectBlue);
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rectGreen = new CustomItem(100, -100, 50, 50, QColor(80, 200, 80));
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scene->addItem(rectGreen);
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rectRed = new CustomItem(-100, 100, 50, 50, QColor(200, 80, 80));
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scene->addItem(rectRed);
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rectYellow = new CustomItem(100, 100, 50, 50, QColor(200, 200, 20));
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scene->addItem(rectYellow);
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connect(scene, SIGNAL(selectionChanged()), this, SLOT(onSceneSelectionChanged()));
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}
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Widget::~Widget()
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{
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delete ui;
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delete fadeIn;
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delete fadeOut;
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}
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void Widget::on_rotate_valueChanged(int value)
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{
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if (scene->selectedItems().count() != 1)
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return;
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QGraphicsItem *item = scene->selectedItems().at(0);
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item->setRotation(value);
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ui->rotateItem->setValue(checkedItem()->rotation());
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}
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void Widget::on_scale_valueChanged(int value)
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{
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if (scene->selectedItems().count() != 1)
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return;
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QGraphicsItem *item = scene->selectedItems().at(0);
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item->setScale(value / 10.);
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ui->scaleItem->setValue(checkedItem()->scale() * 10);
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}
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void Widget::on_rotateItem_valueChanged(int value)
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{
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if (!scene->selectedItems().empty() && scene->selectedItems().at(0) == checkedItem())
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ui->rotate->setValue(value);
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else
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checkedItem()->setRotation(value);
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}
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void Widget::on_scaleItem_valueChanged(int value)
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{
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if (!scene->selectedItems().empty() && scene->selectedItems().at(0) == checkedItem())
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ui->scale->setValue(value);
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else
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checkedItem()->setScale(value / 10.);
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}
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void Widget::on_group_clicked()
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{
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QList<QGraphicsItem*> all = scene->selectedItems();
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if (all.size() < 2)
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return;
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QList<CustomItem*> items = scene->selectedCustomItems();
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QList<CustomGroup*> groups = scene->selectedCustomGroups();
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if (groups.size() == 1) {
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foreach (CustomItem *item, items) {
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item->setSelected(false);
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groups[0]->addToGroup(item);
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}
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return;
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}
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CustomGroup* group = new CustomGroup;
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scene->addItem(group);
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foreach (QGraphicsItem *item, all) {
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item->setSelected(false);
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group->addToGroup(item);
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}
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group->setSelected(true);
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updateUngroupButton();
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}
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void Widget::on_dismantle_clicked()
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{
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QList<CustomGroup*> groups = scene->selectedCustomGroups();
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foreach (CustomGroup *group, groups) {
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foreach (QGraphicsItem *item, group->childItems())
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group->removeFromGroup(item);
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delete group;
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}
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updateUngroupButton();
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}
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void Widget::on_merge_clicked()
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{
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QList<CustomGroup*> groups = scene->selectedCustomGroups();
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if (groups.size() < 2)
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return;
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CustomGroup *newBigGroup = groups.takeFirst();
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foreach (CustomGroup *group, groups) {
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foreach (QGraphicsItem *item, group->childItems())
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item->setGroup(newBigGroup);
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delete group;
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}
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}
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void Widget::onSceneSelectionChanged()
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{
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QList<QGraphicsItem*> all = scene->selectedItems();
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QList<CustomGroup*> groups = scene->selectedCustomGroups();
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if (all.empty() && all.count() != previousSelectionCount) {
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fadeOut->start();
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} else if (previousSelectionCount == 0) {
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fadeIn->start();
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}
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if (all.count() == 1) {
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QGraphicsItem *item = all.at(0);
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ui->rotate->setValue(item->rotation());
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ui->scale->setValue(item->scale() * 10);
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} else {
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ui->rotate->setValue(ui->rotate->minimum());
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ui->scale->setValue(ui->scale->minimum());
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}
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ui->rotate->setEnabled(all.size() == 1);
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ui->scale->setEnabled(all.size() == 1);
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ui->group->setEnabled(all.size() > 1);
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ui->dismantle->setEnabled(!groups.empty());
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ui->merge->setEnabled(groups.size() > 1);
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previousSelectionCount = all.size();
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updateUngroupButton();
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}
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void Widget::on_ungroup_clicked()
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{
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QGraphicsItemGroup *oldGroup = checkedItem()->group();
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checkedItem()->setGroup(0);
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if (oldGroup && oldGroup->childItems().empty())
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delete oldGroup;
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updateUngroupButton();
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}
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void Widget::updateUngroupButton()
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{
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ui->ungroup->setEnabled(checkedItem()->group() != 0);
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}
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CustomItem * Widget::checkedItem() const
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{
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CustomItem *item;
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if (ui->blue->isChecked())
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item = rectBlue;
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else if (ui->red->isChecked())
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item = rectRed;
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else if (ui->green->isChecked())
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item = rectGreen;
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else if (ui->yellow->isChecked())
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item = rectYellow;
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return item;
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}
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void Widget::on_buttonGroup_buttonClicked()
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{
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ui->rotateItem->setValue(checkedItem()->rotation());
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ui->scaleItem->setValue(checkedItem()->scale() * 10);
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updateUngroupButton();
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}
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