nuclear@3: #include <stdio.h>
nuclear@3: #include "theme.h"
nuclear@3: #include "widget.h"
nuclear@3: 
nuclear@3: #ifdef WIN32
nuclear@3: #include <windows.h>
nuclear@3: #endif
nuclear@3: #ifdef __APPLE__
nuclear@3: #include <OpenGL/gl.h>
nuclear@3: #else
nuclear@3: #include <GL/gl.h>
nuclear@3: #endif
nuclear@3: 
nuclear@3: 
nuclear@4: namespace goatkit {
nuclear@3: 
nuclear@3: Theme *theme;
nuclear@3: 
nuclear@3: Theme::Theme()
nuclear@3: {
nuclear@3: 	so = 0;
nuclear@3: }
nuclear@3: 
nuclear@3: bool Theme::load(const char *name)
nuclear@3: {
nuclear@3: 	fprintf(stderr, "theme loading not implemented yet!\n");
nuclear@3: 	return false;
nuclear@3: }
nuclear@3: 
nuclear@3: widget_draw_func Theme::get_draw_func(const char *type) const
nuclear@3: {
nuclear@3: 	std::map<std::string, widget_draw_func>::const_iterator it = draw_func.find(type);
nuclear@3: 	if(it == draw_func.end()) {
nuclear@3: 		return default_draw_func;
nuclear@3: 	}
nuclear@3: 	return it->second;
nuclear@3: }
nuclear@3: 
nuclear@3: #define LERP(a, b, t)	((a) + ((b) - (a)) * t)
nuclear@3: #define DEF_TEX_SZ	32
nuclear@3: void default_draw_func(const Widget *w)
nuclear@3: {
nuclear@3: 	static unsigned int tex;
nuclear@3: 
nuclear@3: 	if(!tex) {
nuclear@3: 		unsigned char *pixels = new unsigned char[DEF_TEX_SZ * DEF_TEX_SZ * 3];
nuclear@3: 		unsigned char *ptr = pixels;
nuclear@3: 		for(int i=0; i<DEF_TEX_SZ; i++) {
nuclear@3: 			for(int j=0; j<DEF_TEX_SZ; j++) {
nuclear@3: 				bool stripe = (((j + i) / 8) & 1) == 1;
nuclear@3: 				ptr[0] = ptr[1] = ptr[2] = stripe ? 255 : 0;
nuclear@3: 				ptr += 3;
nuclear@3: 			}
nuclear@3: 		}
nuclear@3: 
nuclear@3: 		glGenTextures(1, &tex);
nuclear@3: 		glBindTexture(GL_TEXTURE_2D, tex);
nuclear@3: 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
nuclear@3: 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
nuclear@3: 		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, DEF_TEX_SZ, DEF_TEX_SZ, 0, GL_RGB, GL_UNSIGNED_BYTE, pixels);
nuclear@3: 		delete [] pixels;
nuclear@3: 	}
nuclear@3: 
nuclear@3: 	Vec2 pos = w->get_position();
nuclear@3: 	Vec2 sz = w->get_size();
nuclear@3: 	float aspect = sz.x / sz.y;
nuclear@3: 
nuclear@3: 	glPushAttrib(GL_ENABLE_BIT);
nuclear@3: 	glEnable(GL_TEXTURE_2D);
nuclear@3: 	glBindTexture(GL_TEXTURE_2D, tex);
nuclear@3: 
nuclear@3: 	float offs = w->get_pressed() * 0.1 * sz.y;
nuclear@3: 	glMatrixMode(GL_MODELVIEW);
nuclear@3: 	glPushMatrix();
nuclear@3: 	glTranslatef(offs, -offs, 0);
nuclear@3: 
nuclear@3: 	float active = w->get_active();
nuclear@3: 	float hover = w->get_under_mouse();
nuclear@3: 
nuclear@3: 	float rg = LERP(0.4, 1.0, hover);
nuclear@3: 	float b = LERP(rg, 0, active);
nuclear@3: 	glColor3f(rg, rg, b);
nuclear@3: 
nuclear@3: 	glBegin(GL_QUADS);
nuclear@3: 	glTexCoord2f(0, 1);
nuclear@3: 	glVertex2f(pos.x, pos.y);
nuclear@3: 	glTexCoord2f(aspect, 1);
nuclear@3: 	glVertex2f(pos.x + sz.x, pos.y);
nuclear@3: 	glTexCoord2f(aspect, 0);
nuclear@3: 	glVertex2f(pos.x + sz.x, pos.y + sz.y);
nuclear@3: 	glTexCoord2f(0, 0);
nuclear@3: 	glVertex2f(pos.x, pos.y + sz.y);
nuclear@3: 	glEnd();
nuclear@3: 
nuclear@3: 	glPopMatrix();
nuclear@3: 
nuclear@3: 	glPopAttrib();
nuclear@3: }
nuclear@3: 
nuclear@4: }	// namespace goatkit