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Diffstat (limited to 'examples/qpa/windows/window.cpp')
| -rw-r--r-- | examples/qpa/windows/window.cpp | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/examples/qpa/windows/window.cpp b/examples/qpa/windows/window.cpp deleted file mode 100644 index b4e4cf05f7..0000000000 --- a/examples/qpa/windows/window.cpp +++ /dev/null @@ -1,211 +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 "window.h" - -#include <private/qguiapplication_p.h> - -#include <QBackingStore> -#include <QPainter> - -static int colorIndexId = 0; - -QColor colorTable[] = -{ - QColor("#f09f8f"), - QColor("#a2bff2"), - QColor("#c0ef8f") -}; - -Window::Window(QScreen *screen) - : QWindow(screen) - , m_backgroundColorIndex(colorIndexId++) -{ - initialize(); -} - -Window::Window(QWindow *parent) - : QWindow(parent) - , m_backgroundColorIndex(colorIndexId++) -{ - initialize(); -} - -void Window::initialize() -{ - if (parent()) - setGeometry(QRect(160, 120, 320, 240)); - else { - setFlags(flags() | Qt::WindowTitleHint | Qt::WindowSystemMenuHint - | Qt::WindowMinMaxButtonsHint | Qt::WindowCloseButtonHint); - const QSize baseSize = QSize(640, 480); - setGeometry(QRect(geometry().topLeft(), baseSize)); - - setSizeIncrement(QSize(10, 10)); - setBaseSize(baseSize); - setMinimumSize(QSize(240, 160)); - setMaximumSize(QSize(800, 600)); - } - - create(); - m_backingStore = new QBackingStore(this); - - m_image = QImage(geometry().size(), QImage::Format_RGB32); - m_image.fill(colorTable[m_backgroundColorIndex % (sizeof(colorTable) / sizeof(colorTable[0]))].rgba()); - - m_lastPos = QPoint(-1, -1); - m_renderTimer = 0; -} - -void Window::mousePressEvent(QMouseEvent *event) -{ - m_lastPos = event->position().toPoint(); -} - -void Window::mouseMoveEvent(QMouseEvent *event) -{ - if (m_lastPos != QPoint(-1, -1)) { - QPainter p(&m_image); - p.setRenderHint(QPainter::Antialiasing); - p.drawLine(m_lastPos, event->position().toPoint()); - m_lastPos = event->position().toPoint(); - - scheduleRender(); - } -} - -void Window::mouseReleaseEvent(QMouseEvent *event) -{ - if (m_lastPos != QPoint(-1, -1)) { - QPainter p(&m_image); - p.setRenderHint(QPainter::Antialiasing); - p.drawLine(m_lastPos, event->position().toPoint()); - m_lastPos = QPoint(-1, -1); - - scheduleRender(); - } -} - -void Window::exposeEvent(QExposeEvent *) -{ - scheduleRender(); -} - -void Window::resizeEvent(QResizeEvent *) -{ - QImage old = m_image; - - int width = qMax(geometry().width(), old.width()); - int height = qMax(geometry().height(), old.height()); - - if (width > old.width() || height > old.height()) { - m_image = QImage(width, height, QImage::Format_RGB32); - m_image.fill(colorTable[(m_backgroundColorIndex) % (sizeof(colorTable) / sizeof(colorTable[0]))].rgba()); - - QPainter p(&m_image); - p.drawImage(0, 0, old); - } - scheduleRender(); -} - -void Window::keyPressEvent(QKeyEvent *event) -{ - switch (event->key()) { - case Qt::Key_Backspace: - m_text.chop(1); - break; - case Qt::Key_Enter: - case Qt::Key_Return: - m_text.append('\n'); - break; - default: - m_text.append(event->text()); - break; - } - scheduleRender(); -} - -void Window::scheduleRender() -{ - if (!m_renderTimer) - m_renderTimer = startTimer(1); -} - -void Window::timerEvent(QTimerEvent *) -{ - if (isExposed()) - render(); - killTimer(m_renderTimer); - m_renderTimer = 0; -} - -void Window::render() -{ - QRect rect(QPoint(), geometry().size()); - m_backingStore->resize(rect.size()); - - m_backingStore->beginPaint(rect); - - QPaintDevice *device = m_backingStore->paintDevice(); - - QPainter p(device); - p.drawImage(0, 0, m_image); - - QFont font; - font.setPixelSize(32); - - p.setFont(font); - p.drawText(rect, 0, m_text); - - m_backingStore->endPaint(); - m_backingStore->flush(rect); -} - - |