96 lines
3.3 KiB
C++
96 lines
3.3 KiB
C++
/*******************************************************************************
|
|
The MIT License (MIT)
|
|
|
|
Copyright (c) 2015 David Williams and Matthew Williams
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in all
|
|
copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
SOFTWARE.
|
|
*******************************************************************************/
|
|
|
|
#ifndef __OpenGLWidget_H_A72D4D2F8E__ // Random junk as 'OpenGLWidget seems like it could be a common name.
|
|
#define __OpenGLWidget_H_A72D4D2F8E__
|
|
|
|
#include <QElapsedTimer>
|
|
#include <QGLWidget>
|
|
#include <QMatrix4x4>
|
|
|
|
// This is a very basic class for getting an OpenGL example up and running with Qt5. It simply displays
|
|
// an OpenGL widget and implements an FPS-style camera as well as other very basic functionality. User
|
|
// code can derive from this and override the provided virtual functions to implement functionality.
|
|
// The class is templatized so users can specify the OpenGL version via the appropriate QOpenGLFunctions.
|
|
template <typename QOpenGLFunctionsType>
|
|
class OpenGLWidget : public QGLWidget, protected QOpenGLFunctionsType
|
|
{
|
|
protected:
|
|
// Protected constructor because this widget should not be created directly - it should only be subclassed.
|
|
OpenGLWidget(QWidget *parent);
|
|
|
|
// Derived classes should override these to provide functionality.
|
|
virtual void initialize() {}
|
|
virtual void renderOneFrame() {}
|
|
|
|
// Getters for properties defined by this widget.
|
|
const QMatrix4x4& viewMatrix();
|
|
const QMatrix4x4& projectionMatrix();
|
|
|
|
// Setters for properties defined by this widget.
|
|
void setCameraTransform(QVector3D position, float pitch, float yaw);
|
|
|
|
private:
|
|
|
|
// Qt OpenGL functions
|
|
void initializeGL();
|
|
void resizeGL(int w, int h);
|
|
void paintGL();
|
|
|
|
// Mouse handling
|
|
void mouseMoveEvent(QMouseEvent* event);
|
|
void mousePressEvent(QMouseEvent* event);
|
|
|
|
// Keyboard handling
|
|
void keyPressEvent(QKeyEvent* event);
|
|
void keyReleaseEvent(QKeyEvent* event);
|
|
|
|
// Matrices
|
|
QMatrix4x4 mViewMatrix;
|
|
QMatrix4x4 mProjectionMatrix;
|
|
|
|
// Mouse data
|
|
QPoint m_LastFrameMousePos;
|
|
QPoint m_CurrentMousePos;
|
|
|
|
// Keyboard data
|
|
QList<int> mPressedKeys;
|
|
|
|
// For input handling and movement
|
|
float mCameraMoveSpeed = 50.0f;
|
|
float mCameraRotateSpeed = 0.005f;
|
|
|
|
// Camera properties
|
|
QVector3D mCameraPosition = QVector3D(0, 0, -100);
|
|
float mCameraYaw = 0.0f;
|
|
float mCameraPitch = 0.0f;
|
|
float mCameraFOV = 60.0f;
|
|
|
|
QElapsedTimer mElapsedTimer;
|
|
};
|
|
|
|
#include "OpenGLWidget.inl"
|
|
|
|
#endif //__OpenGLWidget_H_A72D4D2F8E__
|