nuclear@7: #include <map>
nuclear@7: #include <string>
nuclear@7: #include "goatkit/goatkit.h"
nuclear@7: #include "opengl.h"
nuclear@7: #include "drawtext.h"
nuclear@7: #include "sdr.h"
nuclear@7: 
nuclear@7: #define VIS_THRES	0.005
nuclear@7: 
nuclear@7: using namespace goatkit;
nuclear@7: 
nuclear@7: extern int view_xsz, view_ysz;
nuclear@7: extern unsigned int prog_ui, prog_font;
nuclear@7: extern struct dtx_font *font;
nuclear@7: 
nuclear@7: static void draw_label(const Widget *w);
nuclear@7: static void draw_text(float x, float y, const char *text);
nuclear@7: 
nuclear@7: static struct {
nuclear@7: 	const char *name;
nuclear@7: 	WidgetDrawFunc func;
nuclear@7: } widget_funcs[] = {
nuclear@7: 	{ "label", draw_label },
nuclear@7: 	{0, 0}
nuclear@7: };
nuclear@7: 
nuclear@7: static std::map<std::string, WidgetDrawFunc> funcmap;
nuclear@7: 
nuclear@7: extern "C" WidgetDrawFunc get_widget_func(const char *name)
nuclear@7: {
nuclear@7: 	static bool initialized;
nuclear@7: 
nuclear@7: 	if(!initialized) {
nuclear@7: 		for(int i=0; widget_funcs[i].func; i++) {
nuclear@7: 			funcmap[widget_funcs[i].name] = widget_funcs[i].func;
nuclear@7: 		}
nuclear@7: 		initialized = true;
nuclear@7: 	}
nuclear@7: 	return funcmap[name];
nuclear@7: }
nuclear@7: 
nuclear@7: static void begin_drawing(const Widget *w)
nuclear@7: {
nuclear@7: 	Vec2 pos = w->get_position();
nuclear@7: 
nuclear@7: 	glEnable(GL_BLEND);
nuclear@7: 	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
nuclear@7: 
nuclear@7: 	gl_matrix_mode(GL_MODELVIEW);
nuclear@7: 	gl_push_matrix();
nuclear@7: 	gl_load_identity();
nuclear@7: 	gl_translatef(pos.x, pos.y, 0);
nuclear@7: }
nuclear@7: 
nuclear@7: static void end_drawing(const Widget *w)
nuclear@7: {
nuclear@7: 	gl_matrix_mode(GL_MODELVIEW);
nuclear@7: 	gl_pop_matrix();
nuclear@7: }
nuclear@7: 
nuclear@7: static void draw_label(const Widget *w)
nuclear@7: {
nuclear@7: 	Vec2 pos = w->get_position();
nuclear@7: 	float vis = w->get_visibility();
nuclear@7: 	if(vis < VIS_THRES) return;
nuclear@7: 
nuclear@7: 	begin_drawing(w);
nuclear@7: 	draw_text(pos.x, pos.y, w->get_text());
nuclear@7: 	end_drawing(w);
nuclear@7: }
nuclear@7: 
nuclear@7: static void draw_text(float x, float y, const char *text)
nuclear@7: {
nuclear@7: 	struct dtx_glyphmap *gmap = dtx_get_font_glyphmap_idx(font, 0);
nuclear@7: 	dtx_use_font(font, dtx_get_glyphmap_ptsize(gmap));
nuclear@7: 
nuclear@7: 	float aspect = (float)view_xsz / (float)view_ysz;
nuclear@7: 	float virt_xsz = 420.0 * aspect;
nuclear@7: 	float virt_ysz = 420.0;
nuclear@7: 
nuclear@7: 	gl_matrix_mode(GL_PROJECTION);
nuclear@7: 	gl_push_matrix();
nuclear@7: 	gl_load_identity();
nuclear@7: 	gl_ortho(0, virt_xsz, 0, virt_ysz, -1, 1);
nuclear@7: 
nuclear@7: 	gl_matrix_mode(GL_MODELVIEW);
nuclear@7: 	gl_push_matrix();
nuclear@7: 	gl_load_identity();
nuclear@7: 	gl_translatef(x * virt_xsz, y * virt_ysz, 0);
nuclear@7: 
nuclear@7: 	bind_program(prog_font);
nuclear@7: 	set_uniform_float4(prog_font, "ucolor", 1.0, 1.0, 1.0, 1.0);
nuclear@7: 	gl_apply_xform(prog_ui);
nuclear@7: 
nuclear@7: 	dtx_string(text);
nuclear@7: 
nuclear@7: 	gl_matrix_mode(GL_PROJECTION);
nuclear@7: 	gl_pop_matrix();
nuclear@7: 	gl_matrix_mode(GL_MODELVIEW);
nuclear@7: 	gl_pop_matrix();
nuclear@7: }