quakeforge/include/QF/ui/canvas.h
Bill Currie 32cead5f88 [ui] Add a function to create a new canvas entity
The entity has only a canvas component and (root) view component
attached. The plan is to use it for screen-space canvases.
2023-01-20 15:57:29 +09:00

108 lines
2.6 KiB
C

/*
canvas.h
Integration of 2d and 3d objects
Copyright (C) 2022 Bill Currie <bill@taniwha.org>
Author: Bill Currie <bill@taniwha.org>
Date: 2022/12/12
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
#ifndef __QF_scene_canvas_h
#define __QF_scene_canvas_h
#include "QF/ecs.h"
#include "QF/ui/view.h"
enum {
canvas_update,
canvas_updateonce,
canvas_tile,
canvas_pic,
canvas_fitpic, // pic is scaled to fit the view
canvas_subpic,
canvas_cachepic,
canvas_fill,
canvas_charbuff,
canvas_func,
canvas_outline,
// last so deleting an entity removes the grouped components first
canvas_canvas,
canvas_comp_count
};
typedef struct canvas_s {
uint32_t range[canvas_comp_count];
} canvas_t;
extern const struct component_s canvas_components[canvas_comp_count];
typedef struct canvas_system_s {
ecs_registry_t *reg;
uint32_t base;
uint32_t text_base;
uint32_t view_base;
} canvas_system_t;
struct view_s;
struct view_pos_s;
typedef void (*canvas_update_f) (struct view_s);
typedef void (*canvas_func_f) (struct view_pos_s, struct view_pos_s);
typedef struct canvas_subpic_s {
struct qpic_s *pic;
uint32_t x, y;
uint32_t w, h;
} canvas_subpic_t;
#define CANVASINLINE GNU89INLINE inline
void Canvas_AddToEntity (canvas_system_t canvas_sys, uint32_t ent);
uint32_t Canvas_New (canvas_system_t canvas_sys);
void Canvas_Draw (canvas_system_t canvas_sys);
void Canvas_SortComponentPool (canvas_system_t canvas_sys, uint32_t ent,
uint32_t component);
CANVASINLINE view_t Canvas_GetRootView (canvas_system_t canvas_sys,
uint32_t ent);
#undef CANVASINLINE
#ifndef IMPLEMENT_CANVAS_Funcs
#define CANVASINLINE GNU89INLINE inline
#else
#define CANVASINLINE VISIBLE
#endif
CANVASINLINE
view_t
Canvas_GetRootView (canvas_system_t canvas_sys, uint32_t ent)
{
ecs_system_t viewsys = { canvas_sys.reg, canvas_sys.view_base };
return View_FromEntity (viewsys, ent);
}
#undef CANVASINLINE
#endif//__QF_scene_canvas_h