home *** CD-ROM | disk | FTP | other *** search
- #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();
-
- private:
- enum Axis { XAxis, YAxis, ZAxis };
- enum RenderModes { Wireframe, Filled, SmoothShaded, Landscape };
- enum Views { DefaultView, CurrentView };
-
- void rotate( GLfloat deg, Axis axis );
- void calculateVertexNormals();
- void averageNormals();
- void createGrid( int size );
- void destroyGrid();
-
- 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[2];
-
- QPoint oldPos;
- GLfloat oldX, oldY, oldZ;
- bool initFractals;
- int gridSize, gridHalf;
- bool animationRunning;
- bool mouseButtonDown;
- };
-
- #endif
-