2012-01-09 10:25:40 +00:00
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/****************************************************************************
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**
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2016-01-15 12:36:27 +00:00
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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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2012-01-09 10:25:40 +00:00
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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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2016-01-15 12:36:27 +00:00
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** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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2012-09-19 12:28:29 +00:00
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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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2015-01-28 08:44:43 +00:00
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** a written agreement between you and The Qt Company. For licensing terms
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2016-01-15 12:36:27 +00:00
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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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2012-09-19 12:28:29 +00:00
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**
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2016-01-15 12:36:27 +00:00
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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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2012-01-09 10:25:40 +00:00
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "window.h"
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#include <private/qguiapplication_p.h>
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#include <QBackingStore>
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#include <QPainter>
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2012-04-12 10:56:20 +00:00
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#include <QtWidgets>
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2012-01-09 10:25:40 +00:00
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static int colorIndexId = 0;
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QColor colorTable[] =
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{
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QColor("#f09f8f"),
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QColor("#a2bff2"),
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QColor("#c0ef8f")
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};
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Window::Window(QScreen *screen)
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: QWindow(screen)
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, m_backgroundColorIndex(colorIndexId++)
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{
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initialize();
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}
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Window::Window(QWindow *parent)
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: QWindow(parent)
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, m_backgroundColorIndex(colorIndexId++)
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{
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initialize();
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}
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void Window::initialize()
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{
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if (parent())
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setGeometry(QRect(160, 120, 320, 240));
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else {
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setGeometry(QRect(10, 10, 640, 480));
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setSizeIncrement(QSize(10, 10));
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setBaseSize(QSize(640, 480));
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setMinimumSize(QSize(240, 160));
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}
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create();
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m_backingStore = new QBackingStore(this);
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m_image = QImage(geometry().size(), QImage::Format_RGB32);
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m_image.fill(colorTable[m_backgroundColorIndex % (sizeof(colorTable) / sizeof(colorTable[0]))].rgba());
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m_lastPos = QPoint(-1, -1);
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m_renderTimer = 0;
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}
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void Window::mousePressEvent(QMouseEvent *event)
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{
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m_lastPos = event->pos();
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}
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void Window::mouseMoveEvent(QMouseEvent *event)
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{
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if (m_lastPos != QPoint(-1, -1)) {
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QPainter p(&m_image);
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2012-12-17 10:29:54 +00:00
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QPen pen;
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pen.setCosmetic(true);
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pen.setWidth(1);
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p.setPen(pen);
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2012-01-09 10:25:40 +00:00
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p.setRenderHint(QPainter::Antialiasing);
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p.drawLine(m_lastPos, event->pos());
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m_lastPos = event->pos();
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}
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scheduleRender();
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}
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void Window::wheelEvent(QWheelEvent *event)
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{
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qDebug() << "wheelEvent delta" << event->delta() << "orientation" << event->orientation();
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qDebug() << "wheelEvent pixelDelta" << event->pixelDelta();
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qDebug() << "wheelEvent angleDelta" << event->angleDelta();
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const bool useQt4API = false;
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if (useQt4API) {
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if (event->orientation() == Qt::Horizontal)
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scrollOffset.setX(scrollOffset.x() + event->delta());
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else
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scrollOffset.setY(scrollOffset.y() + event->delta());
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scheduleRender();
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} else {
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if (!event->pixelDelta().isNull()) {
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scrollOffset += event->pixelDelta();
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scheduleRender();
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}
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}
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}
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void Window::mouseReleaseEvent(QMouseEvent *event)
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{
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if (m_lastPos != QPoint(-1, -1)) {
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QPainter p(&m_image);
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p.setRenderHint(QPainter::Antialiasing);
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p.drawLine(m_lastPos, event->pos());
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m_lastPos = QPoint(-1, -1);
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}
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scheduleRender();
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}
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void Window::exposeEvent(QExposeEvent *)
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{
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scheduleRender();
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}
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void Window::resizeEvent(QResizeEvent *)
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{
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QImage old = m_image;
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2012-12-17 10:29:54 +00:00
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qDebug() << "Window::resizeEvent" << geometry();
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int width = qMax(geometry().width() * devicePixelRatio(), qreal(old.width()));
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int height = qMax(geometry().height() * devicePixelRatio(), qreal(old.height()));
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2012-01-09 10:25:40 +00:00
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2012-12-17 10:29:54 +00:00
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qDebug() << "Window::resizeEvent" << width << height;
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2012-01-09 10:25:40 +00:00
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if (width > old.width() || height > old.height()) {
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m_image = QImage(width, height, QImage::Format_RGB32);
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2012-12-17 10:29:54 +00:00
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m_image.setDevicePixelRatio(devicePixelRatio());
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2012-01-09 10:25:40 +00:00
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m_image.fill(colorTable[(m_backgroundColorIndex) % (sizeof(colorTable) / sizeof(colorTable[0]))].rgba());
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QPainter p(&m_image);
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p.drawImage(0, 0, old);
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}
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render();
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}
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void Window::keyPressEvent(QKeyEvent *event)
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{
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switch (event->key()) {
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case Qt::Key_Backspace:
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m_text.chop(1);
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break;
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case Qt::Key_Enter:
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case Qt::Key_Return:
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m_text.append('\n');
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break;
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default:
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m_text.append(event->text());
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break;
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}
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scheduleRender();
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}
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void Window::scheduleRender()
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{
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if (!m_renderTimer)
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m_renderTimer = startTimer(1);
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}
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void Window::timerEvent(QTimerEvent *)
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{
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render();
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killTimer(m_renderTimer);
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m_renderTimer = 0;
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}
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void Window::render()
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{
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QRect rect(QPoint(), geometry().size());
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m_backingStore->resize(rect.size());
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m_backingStore->beginPaint(rect);
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QPaintDevice *device = m_backingStore->paintDevice();
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QPainter p(device);
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p.drawImage(0, 0, m_image);
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QFont font;
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font.setPixelSize(32);
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p.setFont(font);
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p.drawText(rect, 0, m_text);
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// draw grid:
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int gridSpace = 80;
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2012-12-17 10:29:54 +00:00
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QPen pen;
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pen.setCosmetic(true);
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pen.setWidth(1);
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p.setPen(pen);
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2012-01-09 10:25:40 +00:00
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for (int y = 0; y < geometry().height() + gridSpace; y+= gridSpace) {
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int offset = scrollOffset.y() % gridSpace;
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//int color = ((y + offset) %255);// + scrollOffset.y()) % 255);
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p.drawLine(0, y + offset, geometry().width(), y + offset);
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//p.setBrush(QColor(color,0, 0));
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//p.fillRect(0, y + offset, geometry().width(), gridSpace,QColor(color,0, 0));
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}
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2012-12-17 10:29:54 +00:00
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2012-01-09 10:25:40 +00:00
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for (int x = 0; x < geometry().width() + gridSpace; x+= gridSpace) {
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p.drawLine(x + scrollOffset.x() % gridSpace, 0, x + scrollOffset.x() % gridSpace, geometry().height());
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}
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m_backingStore->endPaint();
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m_backingStore->flush(rect);
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}
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