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Diffstat (limited to 'examples/opengl/legacy/hellogl/glwidget.cpp')
| -rw-r--r-- | examples/opengl/legacy/hellogl/glwidget.cpp | 207 |
1 files changed, 0 insertions, 207 deletions
diff --git a/examples/opengl/legacy/hellogl/glwidget.cpp b/examples/opengl/legacy/hellogl/glwidget.cpp deleted file mode 100644 index 059a9bb96d..0000000000 --- a/examples/opengl/legacy/hellogl/glwidget.cpp +++ /dev/null @@ -1,207 +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 <QtWidgets> -#include <QtOpenGL> - -#include <math.h> - -#include "glwidget.h" -#include "qtlogo.h" - -#ifndef GL_MULTISAMPLE -#define GL_MULTISAMPLE 0x809D -#endif - -//! [0] -GLWidget::GLWidget(QWidget *parent) - : QGLWidget(QGLFormat(QGL::SampleBuffers), parent) -{ - logo = 0; - xRot = 0; - yRot = 0; - zRot = 0; - - qtGreen = QColor::fromCmykF(0.40, 0.0, 1.0, 0.0); - qtPurple = QColor::fromCmykF(0.39, 0.39, 0.0, 0.0); -} -//! [0] - -//! [1] -GLWidget::~GLWidget() -{ -} -//! [1] - -//! [2] -QSize GLWidget::minimumSizeHint() const -{ - return QSize(50, 50); -} -//! [2] - -//! [3] -QSize GLWidget::sizeHint() const -//! [3] //! [4] -{ - return QSize(400, 400); -} -//! [4] - -static void qNormalizeAngle(int &angle) -{ - while (angle < 0) - angle += 360 * 16; - while (angle > 360 * 16) - angle -= 360 * 16; -} - -//! [5] -void GLWidget::setXRotation(int angle) -{ - qNormalizeAngle(angle); - if (angle != xRot) { - xRot = angle; - emit xRotationChanged(angle); - update(); - } -} -//! [5] - -void GLWidget::setYRotation(int angle) -{ - qNormalizeAngle(angle); - if (angle != yRot) { - yRot = angle; - emit yRotationChanged(angle); - update(); - } -} - -void GLWidget::setZRotation(int angle) -{ - qNormalizeAngle(angle); - if (angle != zRot) { - zRot = angle; - emit zRotationChanged(angle); - update(); - } -} - -//! [6] -void GLWidget::initializeGL() -{ - initializeOpenGLFunctions(); - - qglClearColor(qtPurple.darker()); - - logo = new QtLogo(this, 64); - logo->setColor(qtGreen.darker()); - - glEnable(GL_DEPTH_TEST); - glEnable(GL_CULL_FACE); - glShadeModel(GL_SMOOTH); - glEnable(GL_LIGHTING); - glEnable(GL_LIGHT0); - glEnable(GL_MULTISAMPLE); - static GLfloat lightPosition[4] = { 0.5, 5.0, 7.0, 1.0 }; - glLightfv(GL_LIGHT0, GL_POSITION, lightPosition); -} -//! [6] - -//! [7] -void GLWidget::paintGL() -{ - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - glLoadIdentity(); - glTranslatef(0.0, 0.0, -10.0); - glRotatef(xRot / 16.0, 1.0, 0.0, 0.0); - glRotatef(yRot / 16.0, 0.0, 1.0, 0.0); - glRotatef(zRot / 16.0, 0.0, 0.0, 1.0); - logo->draw(static_cast<QOpenGLFunctions_1_1 *>(this)); -} -//! [7] - -//! [8] -void GLWidget::resizeGL(int width, int height) -{ - int side = qMin(width, height); - glViewport((width - side) / 2, (height - side) / 2, side, side); - - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - glOrtho(-0.5, +0.5, -0.5, +0.5, 4.0, 15.0); - glMatrixMode(GL_MODELVIEW); -} -//! [8] - -//! [9] -void GLWidget::mousePressEvent(QMouseEvent *event) -{ - lastPos = event->pos(); -} -//! [9] - -//! [10] -void GLWidget::mouseMoveEvent(QMouseEvent *event) -{ - int dx = event->x() - lastPos.x(); - int dy = event->y() - lastPos.y(); - - if (event->buttons() & Qt::LeftButton) { - setXRotation(xRot + 8 * dy); - setYRotation(yRot + 8 * dx); - } else if (event->buttons() & Qt::RightButton) { - setXRotation(xRot + 8 * dy); - setZRotation(zRot + 8 * dx); - } - lastPos = event->pos(); -} -//! [10] |