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Diffstat (limited to 'examples/widgets/effects/fademessage/fademessage.cpp')
-rw-r--r-- | examples/widgets/effects/fademessage/fademessage.cpp | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/examples/widgets/effects/fademessage/fademessage.cpp b/examples/widgets/effects/fademessage/fademessage.cpp deleted file mode 100644 index 4c3a70bb4f..0000000000 --- a/examples/widgets/effects/fademessage/fademessage.cpp +++ /dev/null @@ -1,138 +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 "fademessage.h" - -#include <QtWidgets> - -FadeMessage::FadeMessage(QWidget *parent): QGraphicsView(parent) -{ - setScene(&m_scene); - setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); - setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff); - - setupScene(); - - m_animation = new QPropertyAnimation(m_effect, "strength", this); - m_animation->setDuration(500); - m_animation->setEasingCurve(QEasingCurve::InOutSine); - m_animation->setStartValue(0); - m_animation->setEndValue(1); - - setRenderHint(QPainter::Antialiasing, true); - setFrameStyle(QFrame::NoFrame); -} - -void FadeMessage::togglePopup() -{ - if (m_message->isVisible()) { - m_message->setVisible(false); - m_animation->setDirection(QAbstractAnimation::Backward); - } else { - m_message->setVisible(true); - m_animation->setDirection(QAbstractAnimation::Forward); - } - m_animation->start(); -} - -void FadeMessage::setupScene() -{ - QGraphicsRectItem *parent = m_scene.addRect(0, 0, 800, 600); - parent->setPen(Qt::NoPen); - parent->setZValue(0); - - QGraphicsPixmapItem *bg = m_scene.addPixmap(QPixmap(":/background.jpg")); - bg->setParentItem(parent); - bg->setZValue(-1); - - for (int i = 1; i < 5; ++i) - for (int j = 2; j < 5; ++j) { - QGraphicsRectItem *item = m_scene.addRect(i * 50, (j - 1) * 50, 38, 38); - item->setParentItem(parent); - item->setZValue(1); - int hue = 12 * (i * 5 + j); - item->setBrush(QColor::fromHsv(hue, 128, 128)); - } - - QFont font; - font.setPointSize(font.pointSize() * 2); - font.setBold(true); - QFontMetrics fontMetrics(font); - int fh = fontMetrics.height(); - - QString sceneText = "Qt Everywhere!"; - int sceneTextWidth = fontMetrics.horizontalAdvance(sceneText); - - QGraphicsRectItem *block = m_scene.addRect(50, 300, sceneTextWidth, fh + 3); - block->setPen(Qt::NoPen); - block->setBrush(QColor(102, 153, 51)); - - QGraphicsTextItem *text = m_scene.addText(sceneText, font); - text->setDefaultTextColor(Qt::white); - text->setPos(50, 300); - block->setZValue(2); - block->hide(); - - text->setParentItem(block); - m_message = block; - - m_effect = new QGraphicsColorizeEffect; - m_effect->setColor(QColor(122, 193, 66)); - m_effect->setStrength(0); - m_effect->setEnabled(true); - parent->setGraphicsEffect(m_effect); - - QPushButton *press = new QPushButton; - press->setText(tr("Press me")); - connect(press, &QAbstractButton::clicked, this, &FadeMessage::togglePopup); - m_scene.addWidget(press); - - press->move(300, 500); -} |