1 files changed, 98 insertions, 0 deletions
diff --git a/examples/demo/opengl/gllandscape.h b/examples/demo/opengl/gllandscape.h
new file mode 100644
index 0000000..ca87676
--- /dev/null
+++ b/examples/demo/opengl/gllandscape.h
@@ -0,0 +1,98 @@
+#ifndef GLLANDSCAPE_H
+#define GLLANDSCAPE_H
+
+#include <qgl.h>
+
+class GLLandscape : public QGLWidget
+{
+    Q_OBJECT
+
+public:
+    GLLandscape( QWidget * parent = 0, const char * name = 0 );
+    ~GLLandscape();
+    
+public slots:
+    void rotateX( int );
+    void rotateY( int );
+    void rotateZ( int );
+    void zoom( int );
+    void fractalize();
+    void resetGrid();
+    
+    void setWireframe( int );
+    void setFilled( int );
+    void setSmoothShaded( int );
+    void setLandscape( int );
+    void setGridSize( int );
+    
+    void toggleWaveAnimation( bool );
+
+signals:
+    void rotatedX( int );
+    void rotatedY( int );
+    void rotatedZ( int );
+    
+protected:
+    void paintGL();
+    void initializeGL();
+    void resizeGL( int w, int h );
+    void mousePressEvent( QMouseEvent * );
+    void mouseReleaseEvent( QMouseEvent * );
+    void mouseMoveEvent( QMouseEvent * );
+    void timerEvent( QTimerEvent * );
+    void showEvent( QShowEvent * );
+    void hideEvent( QHideEvent * );
+    
+    void drawWireframe();
+    void drawFilled();
+    void drawSmoothShaded();
+    void drawAxis();
+    void drawCube();
+    
+private:
+    enum Axis { XAxis, YAxis, ZAxis };
+    enum RenderModes { Wireframe, Filled, SmoothShaded, Landscape };
+    enum Views { DefaultView, CurrentView, AxisView };
+
+    void rotate( GLfloat deg, Axis axis );
+    void calculateVertexNormals();
+    void averageNormals();
+    void createGrid( int size );
+    void destroyGrid();
+    void initDisplayLists();
+    
+    RenderModes mode;
+    
+    typedef struct grid_normals {
+	double u[3], l[3];
+    } gridNormals;
+
+    // Structure used to store the vertex normals for the landscape
+    typedef struct avg_normals {
+	double n[3];
+    } avgNormals;
+
+    typedef struct viewMatrix {
+	GLfloat model[4][4];      // OpenGL model view matrix for the view
+	GLfloat projection[4][4]; // OpenGL projection matrix for the view
+    } viewMatrix;
+
+    double      ** landscape; // Height field data
+    double      ** wave;      // Wave data
+    double      ** wt;        // Parameterized wave data
+    gridNormals ** normals;
+    avgNormals  ** vertexNormals;
+    viewMatrix     views[3];
+    
+    QPoint  oldPos;
+    GLfloat oldX, oldY, oldZ;
+    bool initFractals;
+    int  gridSize, gridHalf;
+    bool animationRunning;
+    bool mouseButtonDown;
+    int cubeTimer, animTimer;
+    GLfloat cubeRot;
+    GLint axisList, cubeList;
+};
+
+#endif