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#include <engine/system.h>
#include <engine/interface.h>
#include "ui.h"
/********************************************************
UI
*********************************************************/
struct pretty_font
{
float m_CharStartTable[256];
float m_CharEndTable[256];
int font_texture;
};
extern struct pretty_font *current_font;
static void *hot_item = 0;
static void *active_item = 0;
static void *last_active_item = 0;
static void *becomming_hot_item = 0;
static float mouse_x, mouse_y; /* in gui space */
static float mouse_wx, mouse_wy; /* in world space */
static unsigned mouse_buttons = 0;
float ui_mouse_x() { return mouse_x; }
float ui_mouse_y() { return mouse_y; }
float ui_mouse_world_x() { return mouse_wx; }
float ui_mouse_world_y() { return mouse_wy; }
int ui_mouse_button(int index) { return (mouse_buttons>>index)&1; }
void ui_set_hot_item(void *id) { becomming_hot_item = id; }
void ui_set_active_item(void *id) { active_item = id; if (id) last_active_item = id; }
void ui_clear_last_active_item() { last_active_item = 0; }
void *ui_hot_item() { return hot_item; }
void *ui_active_item() { return active_item; }
void *ui_last_active_item() { return last_active_item; }
int ui_update(float mx, float my, float mwx, float mwy, int buttons)
{
mouse_x = mx;
mouse_y = my;
mouse_wx = mwx;
mouse_wy = mwy;
mouse_buttons = buttons;
hot_item = becomming_hot_item;
if(active_item)
hot_item = active_item;
becomming_hot_item = 0;
return 0;
}
int ui_mouse_inside(float x, float y, float w, float h)
{
if(mouse_x >= x && mouse_x <= x+w && mouse_y >= y && mouse_y <= y+h)
return 1;
return 0;
}
void ui_do_image(int texture, float x, float y, float w, float h)
{
gfx_blend_normal();
gfx_texture_set(texture);
gfx_quads_begin();
gfx_setcolor(1,1,1,1);
gfx_quads_setsubset(
0.0f, /* startx */
0.0f, /* starty */
1.0f, /* endx */
1.0f); /* endy */
gfx_quads_drawTL(x,y,w,h);
gfx_quads_end();
}
void ui_do_label(float x, float y, const char *text, float size)
{
gfx_blend_normal();
gfx_texture_set(current_font->font_texture);
gfx_pretty_text(x, y, size, text, -1);
}
int ui_do_button(void *id, const char *text, int checked, float x, float y, float w, float h, draw_button_callback draw_func, void *extra)
{
/* logic */
int r = 0;
int inside = ui_mouse_inside(x,y,w,h);
if(ui_active_item() == id)
{
if(!ui_mouse_button(0))
{
if(inside)
r = 1;
ui_set_active_item(0);
}
}
else if(ui_hot_item() == id)
{
if(ui_mouse_button(0))
ui_set_active_item(id);
}
if(inside)
ui_set_hot_item(id);
draw_func(id, text, checked, x, y, w, h, extra);
return r;
}
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