tgGUI.cpp

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#include <blort/TomGine/tgGUI.h>
#include <blort/TomGine/tgPlot2D.h>
#include <stdio.h>
#include <GL/gl.h>

using namespace blortGLWindow;
using namespace TomGine;

tgGUI::tgGUI(unsigned width, unsigned height)
{
        m_width = width;
        m_height = height;
        
        m_window = new GLWindow(width, height, "GUI");

        // Set camera
        glMatrixMode(GL_PROJECTION);
        glOrtho(0.0, width, 0.0, height, 0.01, 1.0);
        float ft[16] = {        1.0f, 0.0f, 0.0f, 0.0f,
                                                0.0f, 1.0f, 0.0f, 0.0f,
                                                0.0f, 0.0f, 1.0f, 0.0f,
                                                0.0f, 0.0f,-1.0f, 1.0};
        
        glMatrixMode(GL_MODELVIEW);
        glLoadMatrixf(ft);
}

tgGUI::~tgGUI()
{
        if(m_window)
                delete(m_window);
}

bool tgGUI::InputControl(Event &event)
{
        switch(event.type){
                
                case TMGL_Press:
//                      printf("event.key.keysym: %x\n", event.key.keysym);
                        switch(event.input){
                                case TMGL_Escape:
                                        return false;
                                        break;
                                default:
                                        break;
                        }
                        break;
                        
                case TMGL_Release:

                        break;
                        
                case TMGL_Motion:

                        break;
                default:
                        break;
        } // switch(event.type)
return true;
}

bool tgGUI::Update()
{
        bool quit = true;
        Event event;
        while(m_window->GetEvent(event)){
                quit = InputControl(event);
                if(quit==false)
                        return false;
        }
        
        //for(unsigned i=0; i<m_elements.size(); i++){
        //      m_elements[i]->draw();
        //}
        
        m_window->Update();
        
        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
        
        return true;
}

void tgGUI::Screenshot(const char *filename) const
{
        char* data = (char*)malloc(3*m_width*m_height);
        
        glGetTexImage(GL_TEXTURE_2D, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
        
        FILE *ppm;
        ppm = fopen(filename,"w");
        fprintf(ppm,"P6\n%u %u\n255\n",m_width,m_height);
        fwrite(&data, 1, 3*m_width*m_height, ppm);
        fclose(ppm);
}