Eigene Dateien/uni/visualisierung/vislu/bsp1/VisLu/VMenu.cpp

Go to the documentation of this file.

#include "VMenu.h"

VMenu::VMenu(void){
        shMenu = true;
        hMenu = false;
        lFile = false;
        mPos = 0;
        actPos = 0;
}
        
void VMenu::draw(void){ 
        //glUseProgramObjectARB(0);
        GLenum err = glGetError();
        if (err != GL_NO_ERROR)
                cout << "GL Error: " << gluErrorString(err) << endl;
        
        GLint matrixMode;
        GLboolean lightingOn;
        GLboolean depthOn;
        char *ch;
        shMenu = true;
        
        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); 
        //Display Menu Entrys 
        
        depthOn = glIsEnabled(GL_DEPTH_TEST);
        if (depthOn) glDisable(GL_DEPTH_TEST);
        glEnable (GL_BLEND);
        glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
        
        lightingOn= glIsEnabled(GL_LIGHTING);        // lighting on?
        if (lightingOn) glDisable(GL_LIGHTING);
        
        glGetIntegerv(GL_MATRIX_MODE, &matrixMode);  // matrix mode? 
        
        glMatrixMode(GL_PROJECTION);
        glPushMatrix();
        glLoadIdentity();
        gluOrtho2D(0.0, 1.0, 0.0, 1.0);
        glMatrixMode(GL_MODELVIEW);
        glPushMatrix();
        glLoadIdentity();
        glPushAttrib(GL_COLOR_BUFFER_BIT);      //  save current colour 
        
        //Draw The Background 
        glColor4f(0.0f,0.0f,0.0f,0.25f);    // Black 
        DrawBox(0.0f,0.0f,-1.0f,1.0f,1.0f);    // X,Y Width Height 
        
        if (hMenu){
                mPos = 7;
                //Draw Background Box
                glColor4f(0.0f,0.3f,0.6f,0.9f);    // Blueish Color 
                DrawBox(0.25f,0.05f,-1.0f,0.25f,1.0f);    // X,Y Width Height 
        }
        else{
                //Draw Background Box
                glColor4f(0.0f,0.3f,0.6f,0.9f);    // Blueish Color 
                DrawBox(0.25f,0.28f,-1.0f,0.25f,1.0f);    // X,Y Width Height 
        }
        
        //Draw The TitleBar 
        glColor4f(0.79f,0.8f,1.0f,0.5f);    // White with Blending 
        DrawBox(0.25f,0.59f,-1.0f,0.30f,0.04f);    // X,Y Width Height  
        

        //Draw Selected Item 
        glColor4f(1.0f,1.0f,1.0f,0.2f);    // White Color 
        DrawBox(0.25f,(0.445f-(actPos*0.05)),0.0f,0.25f,0.03f);    // Draws the selector bar
        
        
        //Set Menu Entrys 
        
        char Entry0[40],Entry1[40],Entry2[40],Entry3[40],Entry4[40],Entry5[40],Entry6[40],Entry7[40];
        
        
        if (hMenu){
                sprintf(Entry0," Help Menu");
                sprintf(Entry1," 1..3D View");
                sprintf(Entry2," 2..Side View"); 
                sprintf(Entry3," 3..Front View");
                sprintf(Entry4," 4..Top View");
                sprintf(Entry5," +..Next Slice"); 
                sprintf(Entry6," -..Previous Slice");
                sprintf(Entry7," Return");
        }
        else if (lFile){
                sprintf(Entry0," Choose Dataset");
                sprintf(Entry1," Lobster");
                sprintf(Entry2," Head");
                sprintf(Entry3," Beetle");
        }
        else {
                sprintf(Entry0," VisLU");
                sprintf(Entry1," Load File");
                sprintf(Entry2," Help"); 
                sprintf(Entry3," Exit");
        }
        
        //Draw The Title 
        glColor3f(1.0, 1.0, 1.0);
        glRasterPos3f(0.252, 0.60, 0.0);                                                        // Draws the title
        for(ch= Entry0; *ch; ch++) {                                                    // so that it is in the title bar, and so its white
                glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, (int)*ch);
        }
        
        glRasterPos3f(0.26, 0.45, 1.0);
        for(ch= Entry1; *ch; ch++) {
                glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, (int)*ch);
        }
        
        glRasterPos3f(0.26, 0.40, 1.0);
        for(ch= Entry2; *ch; ch++) {
                glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, (int)*ch);
        }
        if (!hMenu){
        glRasterPos3f(0.26, 0.35, 1.0);
        for(ch= Entry3; *ch; ch++) {
                glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, (int)*ch);

        }
        }
        
        if (hMenu){
                glRasterPos3f(0.26, 0.30, 1.0);
                for(ch= Entry4; *ch; ch++) {
                        glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, (int)*ch);
                }
                glRasterPos3f(0.26, 0.25, 1.0);
                for(ch= Entry5; *ch; ch++) {
                        glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, (int)*ch);
                }
                glRasterPos3f(0.26, 0.20, 1.0);
                for(ch= Entry6; *ch; ch++) {
                        glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, (int)*ch);
                }
                glRasterPos3f(0.26, 0.10, 1.0);
                for(ch= Entry7; *ch; ch++) {
                        glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, (int)*ch);
                }
        }
        
        glRasterPos3f(0.8, 0.05, 1.0);
        for(ch= "a visualization by Klepp/Moreau"; *ch; ch++) {
                glutBitmapCharacter(GLUT_BITMAP_HELVETICA_10, (int)*ch);
        }
        glPopAttrib();
        glPopMatrix();
        glMatrixMode(GL_PROJECTION);
        glPopMatrix();
        glMatrixMode(matrixMode);
        if (lightingOn) glEnable(GL_LIGHTING);
        if (depthOn) glEnable(GL_DEPTH_TEST);
        glDisable (GL_BLEND); 
}
        
void VMenu::DrawBox(GLfloat x, GLfloat y, GLfloat z, GLfloat width, GLfloat height)
{
        glBegin(GL_QUADS);
        glVertex3f(x,y,z);
        glVertex3f(x+width,y,z);
        glVertex3f(x+width,y+height,z);
        glVertex3f(x,y+height,z);
        glEnd();
}
        
void VMenu::setMouse(float _x, float _y){
        this->mouseX = _x;
        this->mouseY = _y;

        if (this->lFile){
                if ( mouseY > 0.20){
                        if(mouseY < 1-0.45)
                                actPos = 0;
                        else if(mouseY < 1-0.40)
                                actPos = 1;
                        else if(mouseY < 1-0.35)
                                actPos = 2;
                }
        }
        else if (this->hMenu){
                actPos = 7;
        }
        else if (this->shMenu){
                if ( mouseY > 0.20){
                        if(mouseY < 1-0.45)
                                actPos = 0;
                        else if(mouseY < 1-0.40)
                                actPos = 1;
                        else if(mouseY < 1-0.35)
                                actPos = 2;
                }
        }

}

void VMenu::click(void){
        this->mPos = this->actPos;
        this->actPos = 0;
}

void VMenu::showMenu(bool _shMenu){
        shMenu = _shMenu;
}

void VMenu::helpMenu(bool _helpMenu){
        hMenu = _helpMenu;
}

void VMenu::loadFile(bool _loadFile){
        lFile = _loadFile;
}

bool VMenu::showMenu(void){
        return shMenu;
}

bool VMenu::helpMenu(void){
        return hMenu;
}

bool VMenu::loadFile(void){
        return lFile;
}

int VMenu::menuPos (void){
        return mPos;
}

void VMenu::menuPos(int _pos){
        mPos = _pos;
}

void VMenu::incmenuPos(void){
        mPos++;
}

void VMenu::decmenuPos(void){
        mPos--;
}

---