quakeforge/include/QF/ui/imui.h
Bill Currie 403cf72f52 [ui] Implement a layout stack and radio buttons
Also, remove an intermittent double free caused by deleting views that
have already been deleted.
2023-07-04 01:31:04 +09:00

86 lines
2.5 KiB
C

/*
imui.h
Immediate mode user interface
Copyright (C) 2023 Bill Currie <bill@taniwha.org>
Author: Bill Currie <bill@taniwha.org>
Date: 2023/07/01
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_ui_imui_h
#define __QF_ui_imui_h
typedef struct imui_ctx_s imui_ctx_t;
struct canvas_system_s;
struct IE_event_s;
typedef enum IMUI_SizeKind {
IMUI_SizeKind_Null,
IMUI_SizeKind_Pixels,
IMUI_SizeKind_TextContent,
IMUI_SizeKind_PercentOfParent,
IMUI_SizeKind_ChildrenSum,
} IMUI_SizeKind;
imui_ctx_t *IMUI_NewContext (struct canvas_system_s canvas_sys,
const char *font, float fontsize);
void IMUI_DestroyContext (imui_ctx_t *ctx);
void IMUI_SetVisible (imui_ctx_t *ctx, bool visible);
void IMUI_SetSize (imui_ctx_t *ctx, int xlen, int ylen);
void IMUI_ProcessEvent (imui_ctx_t *ctx, const struct IE_event_s *ie_event);
void IMUI_BeginFrame (imui_ctx_t *ctx);
void IMUI_Draw (imui_ctx_t *ctx);
void IMUI_PushLayout (imui_ctx_t *ctx, bool vertical);
void IMUI_PopLayout (imui_ctx_t *ctx);
bool IMUI_Button (imui_ctx_t *ctx, const char *label);
bool IMUI_Checkbox (imui_ctx_t *ctx, bool *flag, const char *label);
void IMUI_Radio (imui_ctx_t *ctx, int *curvalue, int value, const char *label);
void IMUI_Slider (imui_ctx_t *ctx, float *value, float minval, float maxval,
const char *label);
#define IMUI_DeferLoop(begin, end) \
for (int _i_ = ((begin), 0); !_i_; _i_++, (end))
// #define IMUI_context to an imui_ctx_t * variable
#define UI_Button(label) \
IMUI_Button(IMUI_context, label)
#define UI_Checkbox(flag, label) \
IMUI_Checkbox(IMUI_context, flag, label)
#define UI_Radio(state, value, label) \
IMUI_Radio(IMUI_context, state, value, label)
#define UI_Slider(value, minval, maxval, label) \
IMUI_Slider(IMUI_context, value, minval, maxval, label)
#define UI_Layout(vertical) \
IMUI_DeferLoop (IMUI_PushLayout (IMUI_context, vertical), \
IMUI_PopLayout (IMUI_context ))
#endif//__QF_ui_imui_h