kubrick/src/gameglview.h

   1 /*******************************************************************************
   2   Copyright 2008 Ian Wadham <ianw2@optusnet.com.au>
   3
   4   This program is free software; you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation; either version 2 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program; if not, write to the Free Software
  16   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17 *******************************************************************************/
  18
  19 #ifndef GAMEGLVIEW_H
  20 #define GAMEGLVIEW_H
  21
  22 // Qt includes
  23 #include <QGLWidget>
  24 #include <QMouseEvent>
  25
  26 // Local includes
  27 #include "game.h"
  28 #include "kbkglobal.h"
  29
  30 class Game;                     // Forward declaration of Game class.
  31
  32 /**
  33  * Demonstrate the features of the Qt OpenGL
  34  * view and OpenGL itself.
  35  */
  36 class GameGLView : public QGLWidget
  37 {
  38     Q_OBJECT
  39
  40 public:
  41     /**
  42     * Create a new GL view for the game
  43     **/
  44     GameGLView (Game * g, QWidget * parent = 0);
  45
  46     /**
  47     * Dump all OpenGL and GLU extensions to stdout
  48     **/
  49     void dumpExtensions     ();
  50
  51     void pushGLMatrix       ();
  52     void moveGLView         (float xChange, float yChange, float zChange);
  53     void rotateGLView       (float degrees, float x, float y, float z);
  54     void popGLMatrix        ();
  55
  56     void drawACubie         (float size, float centre[], int axis, int angle);
  57     void finishCubie        ();
  58     void drawASticker       (float size, int color, bool blinking,
  59                              int faceNormal[], float faceCentre []);
  60     void setBlinkIntensity  (float intensity);
  61
  62     QPoint getMousePosition ();
  63
  64     void setBevelAmount     (int bevelPerCent);
  65
  66 protected:
  67     /**
  68     * Reimplemented to initialize the OpenGL context.
  69     *
  70     * This method is called automatically by Qt once.
  71     */
  72     virtual void initializeGL();
  73
  74     /**
  75     * Called by Qt when the size of the GL view changes.
  76     **/
  77     virtual void resizeGL(int w, int h);
  78
  79     /**
  80     * This method actually renders the scene. It is called automatically by Qt
  81     * when paint events occur. A manual repaint (for example for animations) can
  82     * be made by calling updateGL which also calls this method.
  83     *
  84     * Do not call this method directly!
  85     **/
  86     virtual void paintGL();
  87
  88     /**
  89     * Handle mouse events. In these implementations, game->handleMouseEvent
  90     * is called with event type, button, X co-ordinate and Y co-ordinate in
  91     * OpenGL convention (zero at bottom of window).
  92     **/
  93     virtual void mousePressEvent   (QMouseEvent* e);
  94     virtual void mouseReleaseEvent (QMouseEvent* e);
  95
  96     /**
  97     * Check for an OpenGL error. Dump any error to stdout
  98     * @return true, if an error occured, otherwise false
  99     **/
 100     bool checkGLError();
 101
 102 private:
 103     void turnOnLighting     ();
 104
 105     Game * game;
 106     float bevelAmount;          // Fraction of bevelling on a cubie (eg. 0.1).
 107     QColor bgColor;             // Background color.
 108
 109     static float colors [7] [3];
 110     float  blinkIntensity;
 111 };
 112
 113 #endif