1 /* Copyright (C) 2021-2023 Harry Godden (hgn) - All Rights Reserved */
6 * 1. layout is defined by subdividing
7 * 2. a parent node should never be resized by the content after creation
8 * 3. when the ui is in an interactive state, no controls should ever move
16 #include "vg/vg_tex.h"
17 #include "vg/vg_shader.h"
20 typedef ui_px ui_rect
[4];
21 typedef struct ui_vert ui_vert
;
28 /* Relative to cursor p0 */
31 k_ui_align_left
= 0x0000| 0x00,
32 k_ui_align_right
= 0x0000| 0x01,
33 k_ui_align_center
= 0x0000| 0x02,
35 k_ui_align_middle
= 0x0100,
36 k_ui_align_middle_left
= 0x0100| 0x00,
37 k_ui_align_middle_right
= 0x0100| 0x01,
38 k_ui_align_middle_center
= 0x0100| 0x02,
40 k_ui_align_bottom
= 0x0200,
41 k_ui_align_bottom_left
= 0x0200| 0x00,
42 k_ui_align_bottom_right
= 0x0200| 0x01,
43 k_ui_align_bottom_center
= 0x0200| 0x02,
55 enum ui_scheme_colour
{
70 typedef u32 ui_scheme
[8*4];
72 #define UI_RGB( STDHEX ) 0xff000000 |\
73 ((STDHEX&0x000000ff)<<16) |\
74 ((STDHEX&0x0000ff00) ) |\
75 ((STDHEX&0x00ff0000)>>16)
77 #define UI_TEXTBOX_MULTILINE 0x1
78 #define UI_TEXTBOX_WRAP 0x2
79 #define UI_TEXTBOX_AUTOFOCUS 0x4
80 #define UI_MOUSE_LEFT (SDL_BUTTON(SDL_BUTTON_LEFT))
81 #define UI_MOUSE_RIGHT (SDL_BUTTON(SDL_BUTTON_RIGHT))
82 #define UI_MOUSE_MIDDLE (SDL_BUTTON(SDL_BUTTON_MIDDLE))
85 struct ui_vert
*vertex_buffer
;
87 u32 max_verts
, max_indices
,
89 vert_start
, indice_start
;
92 void *focused_control_id
; /* uses the memory location of various locking
97 u32 focused_control_hit
;
100 k_ui_control_textbox
,
102 focused_control_type
;
105 int cursor_user
, cursor_pos
;
111 void (*textbuf_on_enter
) ( char *buf
, u32 len
);
112 void (*textbuf_on_up
) ( char *buf
, u32 len
);
113 void (*textbuf_on_down
) ( char *buf
, u32 len
);
114 void (*textbuf_on_change
)( char *buf
, u32 len
);
116 GLuint tex_glyphs
, vao
, vbo
, ebo
;
118 ui_px mouse
[2], mouse_click
[2];
120 u32 ignore_input_frames
;
123 ui_rect click_fader
, click_fader_end
;
124 float click_fade_opacity
;
136 SDL_Cursor
*cursor_map
[ k_ui_cursor_max
];
140 [ k_ui_bg
+0 ] = UI_RGB( 0x1d2021 ),
141 [ k_ui_bg
+1 ] = UI_RGB( 0x282828 ),
142 [ k_ui_bg
+2 ] = UI_RGB( 0x3c3836 ),
143 [ k_ui_bg
+3 ] = UI_RGB( 0x504945 ),
144 [ k_ui_bg
+4 ] = UI_RGB( 0x665c54 ),
145 [ k_ui_bg
+5 ] = UI_RGB( 0x7c6f64 ),
146 [ k_ui_bg
+6 ] = UI_RGB( 0x928374 ),
147 [ k_ui_bg
+7 ] = UI_RGB( 0xa89984 ),
149 [ k_ui_fg
+0 ] = UI_RGB( 0xebdbb2 ),
150 [ k_ui_fg
+1 ] = UI_RGB( 0xfbf1c7 ),
151 [ k_ui_fg
+2 ] = UI_RGB( 0xd5c4a1 ),
152 [ k_ui_fg
+3 ] = UI_RGB( 0xbdae93 ),
153 [ k_ui_fg
+4 ] = UI_RGB( 0xa89984 ),
154 [ k_ui_fg
+5 ] = UI_RGB( 0x000000 ),
155 [ k_ui_fg
+6 ] = UI_RGB( 0x000000 ),
156 [ k_ui_fg
+7 ] = UI_RGB( 0x000000 ),
158 [ k_ui_red
] = UI_RGB( 0xcc241d ),
159 [ k_ui_orange
] = UI_RGB( 0xd65d0e ),
160 [ k_ui_yellow
] = UI_RGB( 0xd79921 ),
161 [ k_ui_green
] = UI_RGB( 0x98971a ),
162 [ k_ui_aqua
] = UI_RGB( 0x689d6a ),
163 [ k_ui_blue
] = UI_RGB( 0x458588 ),
164 [ k_ui_purple
] = UI_RGB( 0xb16286 ),
165 [ k_ui_gray
] = UI_RGB( 0x928374 ),
166 [ k_ui_red
+ k_ui_brighter
] = UI_RGB( 0xfb4934 ),
167 [ k_ui_orange
+ k_ui_brighter
] = UI_RGB( 0xfe8019 ),
168 [ k_ui_yellow
+ k_ui_brighter
] = UI_RGB( 0xfabd2f ),
169 [ k_ui_green
+ k_ui_brighter
] = UI_RGB( 0xb8bb26 ),
170 [ k_ui_aqua
+ k_ui_brighter
] = UI_RGB( 0x8ec07c ),
171 [ k_ui_blue
+ k_ui_brighter
] = UI_RGB( 0x83a598 ),
172 [ k_ui_purple
+ k_ui_brighter
] = UI_RGB( 0xd3869b ),
173 [ k_ui_gray
+ k_ui_brighter
] = UI_RGB( 0xa89984 ),
177 static struct vg_shader _shader_ui
=
185 "layout (location=0) in vec2 a_co;"
186 "layout (location=1) in vec2 a_uv;"
187 "layout (location=2) in vec4 a_colour;"
190 "out vec2 aTexCoords;"
196 "gl_Position = vec4( uPv * vec3( a_co, 1.0 ), 1.0 );"
197 "aTexCoords = a_uv * 0.0078125;"
198 "aColour = a_colour;"
207 "uniform sampler2D uTexGlyphs;"
208 "out vec4 FragColor;"
210 "in vec2 aTexCoords;"
215 "vec2 rand_hash22( vec2 p )"
217 "vec3 p3 = fract(vec3(p.xyx) * 213.8976123);"
218 "p3 += dot(p3, p3.yzx+19.19);"
219 "return fract(vec2((p3.x + p3.y)*p3.z, (p3.x+p3.z)*p3.y));"
224 "vec4 diffuse = aColour;"
226 "if( diffuse.a == 0.0 )"
228 "diffuse.a = texture( uTexGlyphs, aTexCoords ).r;"
231 "FragColor = diffuse;"
236 static struct vg_shader _shader_ui_image
=
238 .name
= "[vg] ui_image",
244 "layout (location=0) in vec2 a_co;"
245 "layout (location=1) in vec2 a_uv;"
246 "layout (location=2) in vec4 a_colour;"
249 "out vec2 aTexCoords;"
255 "gl_Position = vec4( uPv * vec3( a_co, 1.0 ), 1.0 );"
256 "aTexCoords = a_uv * 0.0078125;"
257 "aColour = a_colour;"
266 "uniform sampler2D uTexImage;"
267 "out vec4 FragColor;"
269 "in vec2 aTexCoords;"
275 "vec4 colour = texture( uTexImage, aTexCoords );"
279 "float value = dot(vec4(1.0),colour)*0.25;"
281 "vec3 col = vec3(pow(cos(value*3.14159265*2.0)*0.5+0.5,0.5))"
282 "* vec3(step(value,0.5),0.3,step(1.0-value,0.5));"
283 "FragColor = vec4( col*4.0, 1.0 );"
286 "FragColor = colour;"
290 #define UI_GLYPH_SPACING_X 8
292 VG_STATIC
void _vg_ui_init(void)
294 if( !vg_shader_compile( &_shader_ui
) ||
295 !vg_shader_compile( &_shader_ui_image
) )
296 vg_fatal_error( "Failed to compile ui shader" );
300 * ----------------------------------------
303 vg_ui
.max_indices
= 20000;
304 vg_ui
.max_verts
= 30000;
306 /* Generate the buffer we are gonna be drawing to */
307 glGenVertexArrays( 1, &vg_ui
.vao
);
308 glGenBuffers( 1, &vg_ui
.vbo
);
309 glGenBuffers( 1, &vg_ui
.ebo
);
311 glBindVertexArray( vg_ui
.vao
);
312 glBindBuffer( GL_ARRAY_BUFFER
, vg_ui
.vbo
);
314 glBufferData( GL_ARRAY_BUFFER
,
315 vg_ui
.max_verts
* sizeof( struct ui_vert
),
316 NULL
, GL_DYNAMIC_DRAW
);
317 glBindVertexArray( vg_ui
.vao
);
319 glBindBuffer( GL_ELEMENT_ARRAY_BUFFER
, vg_ui
.ebo
);
320 glBufferData( GL_ELEMENT_ARRAY_BUFFER
,
321 vg_ui
.max_indices
* sizeof( u16
), NULL
, GL_DYNAMIC_DRAW
);
326 u32
const stride
= sizeof( struct ui_vert
);
329 glVertexAttribPointer( 0, 2, GL_SHORT
, GL_FALSE
, stride
,
330 (void *)offsetof( struct ui_vert
, co
) );
331 glEnableVertexAttribArray( 0 );
334 glVertexAttribPointer( 1, 2, GL_UNSIGNED_BYTE
, GL_FALSE
, stride
,
335 (void *)offsetof( struct ui_vert
, uv
) );
336 glEnableVertexAttribArray( 1 );
339 glVertexAttribPointer( 2, 4, GL_UNSIGNED_BYTE
, GL_TRUE
, stride
,
340 (void *)offsetof( struct ui_vert
, colour
) );
341 glEnableVertexAttribArray( 2 );
345 /* Alloc RAM default context */
346 u32 vert_size
= vg_ui
.max_verts
*sizeof(struct ui_vert
),
347 inds_size
= vg_align8( vg_ui
.max_indices
*sizeof(u16
) );
349 vg_ui
.vertex_buffer
= vg_linear_alloc( vg_mem
.rtmemory
, vert_size
);
350 vg_ui
.indice_buffer
= vg_linear_alloc( vg_mem
.rtmemory
, inds_size
);
353 * -----------------------------------------------------
356 /* Load default font */
358 #include "vg/vg_pxfont_thin.h"
361 u32 pixels
= 0, total
= 256*256, data
= 0;
364 while( pixels
< total
){
365 for( int b
= 31; b
>= 0; b
-- ){
366 image
[ pixels
++ ] = (compressed
[data
] & (0x1u
<< b
))? 0xffu
: 0x00u
;
368 if( pixels
>= total
){
376 glGenTextures( 1, &vg_ui
.tex_glyphs
);
377 glBindTexture( GL_TEXTURE_2D
, vg_ui
.tex_glyphs
);
378 glTexImage2D( GL_TEXTURE_2D
, 0, GL_R8
, 256, 256, 0,
379 GL_RED
, GL_UNSIGNED_BYTE
, image
);
382 glTexParameteri( GL_TEXTURE_2D
, GL_TEXTURE_WRAP_S
, GL_CLAMP_TO_EDGE
);
383 glTexParameteri( GL_TEXTURE_2D
, GL_TEXTURE_WRAP_T
, GL_CLAMP_TO_EDGE
);
384 glTexParameteri( GL_TEXTURE_2D
, GL_TEXTURE_MIN_FILTER
, GL_NEAREST
);
385 glTexParameteri( GL_TEXTURE_2D
, GL_TEXTURE_MAG_FILTER
, GL_NEAREST
);
389 * ---------------------------------------------------------------
392 vg_ui
.cursor_map
[ k_ui_cursor_default
] =
393 SDL_CreateSystemCursor( SDL_SYSTEM_CURSOR_ARROW
);
394 vg_ui
.cursor_map
[ k_ui_cursor_hand
] =
395 SDL_CreateSystemCursor( SDL_SYSTEM_CURSOR_HAND
);
396 vg_ui
.cursor_map
[ k_ui_cursor_ibeam
] =
397 SDL_CreateSystemCursor( SDL_SYSTEM_CURSOR_IBEAM
);
405 static void rect_copy( ui_rect a
, ui_rect b
)
407 for( int i
=0; i
<4; i
++ )
411 VG_STATIC
void ui_flush( enum ui_shader shader
)
413 u32 vertex_offset
= vg_ui
.vert_start
*sizeof(ui_vert
),
414 vertex_count
= vg_ui
.cur_vert
-vg_ui
.vert_start
,
415 vertex_size
= vertex_count
*sizeof(ui_vert
),
417 indice_offset
= vg_ui
.indice_start
*sizeof(u16
),
418 indice_count
= vg_ui
.cur_indice
-vg_ui
.indice_start
,
419 indice_size
= indice_count
* sizeof(u16
);
421 if( !vertex_size
|| !indice_size
)
424 glBindVertexArray( vg_ui
.vao
);
425 glBindBuffer( GL_ARRAY_BUFFER
, vg_ui
.vbo
);
426 glBufferSubData( GL_ARRAY_BUFFER
, vertex_offset
, vertex_size
,
427 vg_ui
.vertex_buffer
+vg_ui
.vert_start
);
429 glBindBuffer( GL_ELEMENT_ARRAY_BUFFER
, vg_ui
.ebo
);
430 glBufferSubData( GL_ELEMENT_ARRAY_BUFFER
, indice_offset
, indice_size
,
431 vg_ui
.indice_buffer
+vg_ui
.indice_start
);
433 glDisable( GL_DEPTH_TEST
);
434 glEnable( GL_BLEND
);
435 glBlendFunc( GL_SRC_ALPHA
, GL_ONE_MINUS_SRC_ALPHA
);
436 glBlendEquation( GL_FUNC_ADD
);
438 m3x3f view
= M3X3_IDENTITY
;
439 m3x3_translate( view
, (v3f
){ -1.0f
, 1.0f
, 0.0f
} );
440 m3x3_scale( view
, (v3f
){ 1.0f
/((float)vg
.window_x
*0.5f
),
441 -1.0f
/((float)vg
.window_y
*0.5f
), 1.0f
} );
443 if( shader
== k_ui_shader_colour
){
444 glUseProgram( _shader_ui
.id
);
446 glUniformMatrix3fv( glGetUniformLocation( _shader_ui
.id
, "uPv" ), 1,
447 GL_FALSE
, (float *)view
);
449 glActiveTexture( GL_TEXTURE0
);
450 glBindTexture( GL_TEXTURE_2D
, vg_ui
.tex_glyphs
);
451 glUniform1i( glGetUniformLocation( _shader_ui
.id
, "uTexGlyphs" ), 0 );
453 else if( shader
== k_ui_shader_image
){
454 glUseProgram( _shader_ui_image
.id
);
455 glUniformMatrix3fv( glGetUniformLocation( _shader_ui_image
.id
, "uPv" ), 1,
456 GL_FALSE
, (float *)view
);
457 glUniform1i( glGetUniformLocation(_shader_ui_image
.id
,"uTexImage"), 0 );
460 vg_fatal_error( "Invalid UI shader (%d)\n", shader
);
462 glDrawElements( GL_TRIANGLES
, indice_count
, GL_UNSIGNED_SHORT
,
463 (void *)(vg_ui
.indice_start
*sizeof(u16
)) );
465 glDisable( GL_BLEND
);
467 vg_ui
.indice_start
= vg_ui
.cur_indice
;
468 vg_ui
.vert_start
= vg_ui
.cur_vert
;
471 static void ui_fill_rect( ui_rect rect
, u32 colour
, ui_px uv
[4] )
473 /* this if far from ideal but stops us from crashing */
474 if( (vg_ui
.cur_vert
+ 4 > vg_ui
.max_verts
) ||
475 (vg_ui
.cur_indice
+ 6 > vg_ui
.max_indices
))
478 struct ui_vert
*vertices
= &vg_ui
.vertex_buffer
[ vg_ui
.cur_vert
];
479 u16
*indices
= &vg_ui
.indice_buffer
[ vg_ui
.cur_indice
];
481 for( int i
=0; i
<4; i
++ ){
482 vertices
[i
].colour
= colour
;
485 vertices
[0].co
[0] = rect
[0];
486 vertices
[0].co
[1] = rect
[1];
487 vertices
[0].uv
[0] = uv
[0];
488 vertices
[0].uv
[1] = uv
[1];
489 vertices
[1].co
[0] = rect
[0]+rect
[2];
490 vertices
[1].co
[1] = rect
[1];
491 vertices
[1].uv
[0] = uv
[2];
492 vertices
[1].uv
[1] = uv
[1];
493 vertices
[2].co
[0] = rect
[0]+rect
[2];
494 vertices
[2].co
[1] = rect
[1]+rect
[3];
495 vertices
[2].uv
[0] = uv
[2];
496 vertices
[2].uv
[1] = uv
[3];
497 vertices
[3].co
[0] = rect
[0];
498 vertices
[3].co
[1] = rect
[1]+rect
[3];
499 vertices
[3].uv
[0] = uv
[0];
500 vertices
[3].uv
[1] = uv
[3];
501 u16 ind_start
= vg_ui
.cur_vert
;
503 u16 start
= vg_ui
.cur_vert
;
504 u32 mesh
[] = { 0,2,1, 0,3,2 };
506 for( u32 i
=0; i
<vg_list_size(mesh
); i
++ ){
507 indices
[i
] = start
+mesh
[i
];
510 vg_ui
.cur_indice
+= 6;
514 static void ui_fill( ui_rect rect
, u32 colour
)
516 ui_fill_rect( rect
, colour
, (ui_px
[4]){ 4,4,4,4 } );
519 static void ui_outline( ui_rect rect
, ui_px thickness
, u32 colour
)
521 /* this if far from ideal but stops us from crashing */
522 if( (vg_ui
.cur_vert
+ 8 > vg_ui
.max_verts
) ||
523 (vg_ui
.cur_indice
+ 24 > vg_ui
.max_indices
))
526 struct ui_vert
*vertices
= &vg_ui
.vertex_buffer
[ vg_ui
.cur_vert
];
527 u16
*indices
= &vg_ui
.indice_buffer
[ vg_ui
.cur_indice
];
529 for( int i
=0; i
<8; i
++ ){
530 vertices
[i
].uv
[0] = 4;
531 vertices
[i
].uv
[1] = 4;
532 vertices
[i
].colour
= colour
;
535 vertices
[0].co
[0] = rect
[0];
536 vertices
[0].co
[1] = rect
[1];
537 vertices
[1].co
[0] = rect
[0]+rect
[2];
538 vertices
[1].co
[1] = rect
[1];
539 vertices
[2].co
[0] = rect
[0]+rect
[2];
540 vertices
[2].co
[1] = rect
[1]+rect
[3];
541 vertices
[3].co
[0] = rect
[0];
542 vertices
[3].co
[1] = rect
[1]+rect
[3];
543 vertices
[4].co
[0] = vertices
[0].co
[0]-thickness
;
544 vertices
[4].co
[1] = vertices
[0].co
[1]-thickness
;
545 vertices
[5].co
[0] = vertices
[1].co
[0]+thickness
;
546 vertices
[5].co
[1] = vertices
[1].co
[1]-thickness
;
547 vertices
[6].co
[0] = vertices
[2].co
[0]+thickness
;
548 vertices
[6].co
[1] = vertices
[2].co
[1]+thickness
;
549 vertices
[7].co
[0] = vertices
[3].co
[0]-thickness
;
550 vertices
[7].co
[1] = vertices
[3].co
[1]+thickness
;
552 u16 start
= vg_ui
.cur_vert
;
553 u32 mesh
[] = { 0,5,4, 0,1,5, 1,6,5, 1,2,6, 2,7,6, 2,3,7, 3,4,7, 3,0,4 };
555 for( u32 i
=0; i
<vg_list_size(mesh
); i
++ ){
556 indices
[i
] = start
+mesh
[i
];
559 vg_ui
.cur_indice
+= 24;
563 static void ui_split_px( ui_rect rect
,
564 enum ui_axis other
, ui_px width
, ui_px pad
,
565 ui_rect l
, ui_rect r
)
567 enum ui_axis dir
= other
^ 0x1;
570 rect_copy( rect
, temp
);
572 l
[ dir
] = temp
[ dir
] + pad
;
573 r
[ dir
] = temp
[ dir
] + width
+ (pad
/2);
574 l
[ other
] = temp
[ other
] + pad
;
575 r
[ other
] = temp
[ other
] + pad
;
576 l
[ 2+dir
] = width
- ((3*pad
)/2);
577 r
[ 2+dir
] = temp
[ 2+dir
] - width
- ((3*pad
)/2);
578 l
[ 2+other
] = temp
[ 2+other
] - pad
*2;
579 r
[ 2+other
] = temp
[ 2+other
] - pad
*2;
582 static void ui_rect_center( ui_rect parent
, ui_rect rect
)
584 rect
[0] = parent
[0] + (parent
[2]-rect
[2])/2;
585 rect
[1] = parent
[1] + (parent
[3]-rect
[3])/2;
588 static void ui_fit_item( ui_rect rect
, ui_px size
[2], ui_rect d
)
590 i32 rp
= (i32
)rect
[2] * (i32
)size
[1],
591 rc
= (i32
)size
[0] * (i32
)rect
[3];
593 enum ui_axis dir
, other
;
594 if( rc
> rp
) dir
= k_ui_axis_h
;
595 else dir
= k_ui_axis_v
;
598 d
[2+dir
] = rect
[2+dir
];
599 d
[2+other
] = (rect
[2+dir
] * size
[other
]) / size
[dir
];
601 ui_rect_center( rect
, d
);
604 static void ui_split_ratio( ui_rect rect
, enum ui_axis dir
, float ratio
,
605 ui_px pad
, ui_rect l
, ui_rect r
)
607 ui_px width
= (float)rect
[ 2+(dir
^0x1) ] * ratio
;
608 ui_split_px( rect
, dir
, width
, pad
, l
, r
);
611 static void ui_rect_pad( ui_rect rect
, ui_px pad
)
619 static ui_px
ui_text_line_width( const char *str
)
622 const char *_c
= str
;
625 while( (c
= *(_c
++)) ){
626 if( c
>= 32 ) length
++;
627 else if( c
== '\n' ) break;
633 static ui_px
ui_text_string_height( const char *str
)
636 const char *_c
= str
;
639 while( (c
= *(_c
++)) ){
640 if( c
== '\n' ) height
++;
646 static ui_px
ui_text_aligned_x( const char *str
, ui_rect rect
, ui_px scale
,
647 enum ui_align align
)
649 if( align
== k_ui_align_left
){
653 ui_px width
= ui_text_line_width( str
) * scale
;
655 if( align
== k_ui_align_right
)
656 return rect
[0] + rect
[2]-width
;
658 return rect
[0] + (rect
[2]-width
)/2;
662 static ui_px
ui_min( ui_px a
, ui_px b
){ return a
<b
?a
:b
; }
663 static ui_px
ui_max( ui_px a
, ui_px b
){ return a
>b
?a
:b
; }
664 static ui_px
ui_clamp( ui_px a
, ui_px min
, ui_px max
)
666 return ui_min( max
, ui_max( a
, min
) );
669 static int ui_clip( ui_rect parent
, ui_rect child
, ui_rect clipped
)
671 ui_px parent_max
[2], child_max
[2];
672 parent_max
[0] = parent
[0]+parent
[2];
673 parent_max
[1] = parent
[1]+parent
[3];
674 child_max
[0] = child
[0]+child
[2];
675 child_max
[1] = child
[1]+child
[3];
677 clipped
[0] = ui_clamp( child
[0], parent
[0], parent_max
[0] );
678 clipped
[1] = ui_clamp( child
[1], parent
[1], parent_max
[1] );
679 clipped
[2] = ui_clamp( child_max
[0], parent
[0], parent_max
[0] );
680 clipped
[3] = ui_clamp( child_max
[1], parent
[1], parent_max
[1] );
682 if( clipped
[0] == clipped
[2] ||
683 clipped
[1] == clipped
[3] )
686 clipped
[2] -= clipped
[0];
687 clipped
[3] -= clipped
[1];
692 static int ui_inside_rect( ui_rect rect
, ui_px co
[2] )
694 if( co
[0] >= rect
[0] &&
696 co
[0] <= rect
[0]+rect
[2] &&
697 co
[1] <= rect
[1]+rect
[3] )
705 static int ui_click_down( u32 mask
)
707 if( vg_ui
.ignore_input_frames
) return 0;
708 if( (vg_ui
.mouse_state
[0] & mask
) &&
709 !(vg_ui
.mouse_state
[1] & mask
) )
715 static int ui_clicking( u32 mask
)
717 if( vg_ui
.ignore_input_frames
) return 0;
718 return vg_ui
.mouse_state
[0] & mask
;
721 static int ui_click_up( u32 mask
)
723 if( vg_ui
.ignore_input_frames
) return 0;
724 if( (vg_ui
.mouse_state
[1] & mask
) &&
725 !(vg_ui
.mouse_state
[0] & mask
) )
731 static void ui_prerender(void)
734 vg_ui
.mouse_state
[1] = vg_ui
.mouse_state
[0];
735 vg_ui
.mouse_state
[0] = SDL_GetMouseState( &x
, &y
);
740 vg_ui
.cur_indice
= 0;
741 vg_ui
.vert_start
= 0;
742 vg_ui
.indice_start
= 0;
743 vg_ui
.focused_control_hit
= 0;
744 vg_ui
.cursor
= k_ui_cursor_default
;
745 vg_ui
.wants_mouse
= 0;
747 if( vg_ui
.ignore_input_frames
){
748 vg_ui
.ignore_input_frames
--;
752 if( ui_click_down(UI_MOUSE_LEFT
)||ui_click_down(UI_MOUSE_MIDDLE
) ){
753 vg_ui
.mouse_click
[0] = vg_ui
.mouse
[0];
754 vg_ui
.mouse_click
[1] = vg_ui
.mouse
[1];
758 static u32
ui_colour( enum ui_scheme_colour id
)
760 return vg_ui
.scheme
[ id
];
763 /* get an appropriately contrasting colour given the base */
764 static u32
ui_colourcont( enum ui_scheme_colour id
)
766 if ( id
< k_ui_bg
+6 ) return ui_colour( k_ui_fg
);
767 else if( id
< k_ui_fg
) return ui_colour( k_ui_bg
+1 );
768 else if( id
< k_ui_hue
) return ui_colour( k_ui_bg
+3 );
769 else if( id
< k_ui_red
+k_ui_brighter
) return ui_colour( k_ui_fg
);
770 else return ui_colour( k_ui_fg
+1 );
773 static u32
ui_ntext( ui_rect rect
, const char *str
, u32 len
, ui_px scale
,
774 enum ui_align align
, u32 colour
)
777 if( colour
== 0 ) colour
= ui_colour( k_ui_fg
);
779 colour
&= 0x00ffffff;
781 const char *_c
= str
;
784 text_cursor
[0] = ui_text_aligned_x( str
, rect
, scale
, align
);
785 text_cursor
[1] = rect
[1];
786 text_cursor
[2] = 8*scale
;
787 text_cursor
[3] = 14*scale
;
789 u32 printed_chars
= 0;
791 if( align
& (k_ui_align_middle
|k_ui_align_bottom
) ){
792 ui_px height
= ui_text_string_height( str
) * scale
;
794 if( align
& k_ui_align_bottom
)
795 text_cursor
[1] += rect
[3]-height
;
797 text_cursor
[1] += (rect
[3]-height
)/2;
800 while( (c
= *(_c
++)) ){
801 if( printed_chars
>= len
){
803 text_cursor
[1] += 14*scale
;
804 text_cursor
[0] = ui_text_aligned_x( _c
, rect
, scale
, align
);
805 text_cursor
[0] -= UI_GLYPH_SPACING_X
*scale
;
808 u8 glyph_index
= '\x90';
809 glyph_base
[0] = glyph_index
& 0xf;
810 glyph_base
[1] = (glyph_index
-glyph_base
[0])>>4;
814 ui_fill_rect( text_cursor
, 0x00ffffff, (ui_px
[4])
822 text_cursor
[0] += UI_GLYPH_SPACING_X
*scale
;
826 text_cursor
[1] += 14*scale
;
827 text_cursor
[0] = ui_text_aligned_x( _c
, rect
, scale
, align
);
834 glyph_base
[0] = glyph_index
& 0xf;
835 glyph_base
[1] = (glyph_index
-glyph_base
[0])>>4;
841 if( ui_clip( rect
, text_cursor
, rect_char
) ){
842 ui_fill_rect( rect_char
, colour
, (ui_px
[4])
851 else if( c
== '\x1B' ){
855 for( int i
=0; i
<3; i
++ ){
861 case '0': colour
= ui_colour( k_ui_fg
); break;
862 case '3'|'0'<<8: colour
= ui_colour( k_ui_bg
); break;
863 case '3'|'1'<<8: colour
= ui_colour( k_ui_red
); break;
864 case '3'|'2'<<8: colour
= ui_colour( k_ui_green
); break;
865 case '3'|'3'<<8: colour
= ui_colour( k_ui_yellow
); break;
866 case '3'|'4'<<8: colour
= ui_colour( k_ui_blue
); break;
867 case '3'|'5'<<8: colour
= ui_colour( k_ui_purple
); break;
868 case '3'|'6'<<8: colour
= ui_colour( k_ui_aqua
); break;
869 case '3'|'7'<<8: colour
= 0xffffffff; break;
872 colour
&= 0x00ffffff;
876 colour_id
|= _c
[i
] << (i
*8);
886 else if( c
== '\t' ){
887 text_cursor
[0] += UI_GLYPH_SPACING_X
*scale
*4;
892 text_cursor
[0] += UI_GLYPH_SPACING_X
*scale
;
896 return printed_chars
;
899 static void ui_text( ui_rect rect
, const char *str
, ui_px scale
,
900 enum ui_align align
, u32 colour
)
902 ui_ntext( rect
, str
, 1024, scale
, align
, colour
);
905 static void ui_image( ui_rect rect
, GLuint image
)
907 ui_flush( k_ui_shader_colour
);
909 glActiveTexture( GL_TEXTURE0
);
910 glBindTexture( GL_TEXTURE_2D
, image
);
911 ui_fill_rect( rect
, 0xffffffff, (ui_px
[4]){ 0,128, 128, 0 } );
912 ui_flush( k_ui_shader_image
);
915 static u32
v4f_u32_colour( v4f colour
)
917 u32 r
= colour
[0] * 255.0f
,
918 g
= colour
[1] * 255.0f
,
919 b
= colour
[2] * 255.0f
,
920 a
= colour
[3] * 255.0f
;
922 return r
| (g
<<8) | (b
<<16) | (a
<<24);
925 static void ui_defocus_all(void)
927 if( vg_ui
.focused_control_type
== k_ui_control_textbox
){
931 vg_ui
.focused_control_id
= NULL
;
932 vg_ui
.focused_control_hit
= 0;
933 vg_ui
.focused_control_type
= k_ui_control_none
;
936 static int ui_colourbutton( ui_rect rect
, enum ui_scheme_colour colour
)
938 int clickup
= ui_click_up(UI_MOUSE_LEFT
),
939 click
= ui_clicking(UI_MOUSE_LEFT
) | clickup
,
940 target
= ui_inside_rect( rect
, vg_ui
.mouse_click
) && click
,
941 hover
= ui_inside_rect( rect
, vg_ui
.mouse
);
943 u32 col_base
= vg_ui
.scheme
[ colour
],
944 col_highlight
= vg_ui
.scheme
[ k_ui_fg
],
945 col_hover
= vg_ui
.scheme
[ colour
+ k_ui_brighter
];
948 vg_ui
.cursor
= k_ui_cursor_hand
;
955 ui_fill( rect
, col_highlight
);
956 vg_ui
.ignore_input_frames
= 2;
957 rect_copy( rect
, vg_ui
.click_fader
);
959 rect_copy( rect
, vg_ui
.click_fader_end
);
960 vg_ui
.click_fader_end
[3] = 0;
961 ui_rect_center( rect
, vg_ui
.click_fader_end
);
963 vg_ui
.click_fade_opacity
= 1.0f
;
968 ui_fill( rect
, col_highlight
);
973 ui_fill( rect
, col_base
);
974 ui_outline( rect
, 1, col_highlight
);
979 ui_fill( rect
, col_base
);
985 ui_fill( rect
, col_hover
);
989 ui_fill( rect
, col_base
);
995 static int ui_colourbutton_text( ui_rect rect
, const char *string
, ui_px scale
,
996 enum ui_scheme_colour colour
)
998 int result
= ui_colourbutton( rect
, colour
);
999 ui_rect t
= { 0,0, ui_text_line_width( string
)*scale
, 14*scale
};
1000 ui_rect_center( rect
, t
);
1001 ui_text( t
, string
, scale
, k_ui_align_left
, ui_colourcont(colour
) );
1005 static int ui_button_text( ui_rect rect
, const char *string
, ui_px scale
)
1007 return ui_colourbutton_text( rect
, string
, scale
, k_ui_bg
+4 );
1010 static void ui_postrender(void)
1012 if( vg_ui
.click_fade_opacity
> 0.0f
){
1014 float scale
= vg_ui
.click_fade_opacity
;
1015 scale
= vg_maxf( 1.0f
/255.0f
, scale
*scale
);
1017 vg_ui
.click_fade_opacity
-= vg
.time_frame_delta
* 3.8f
;
1018 u32 colour
= (0x00ffffff & ui_colour(k_ui_fg
))|0x7f000000;
1020 v4f begin
, end
, dest
;
1021 for( int i
=0; i
<4; i
++ ){
1022 begin
[i
] = vg_ui
.click_fader
[i
];
1023 end
[i
] = vg_ui
.click_fader_end
[i
]+1;
1026 v4_lerp( end
, begin
, scale
, dest
);
1029 for( int i
=0; i
<4; i
++ ){
1033 ui_fill( rect
, colour
);
1035 ui_flush( k_ui_shader_colour
);
1037 if( !vg_ui
.focused_control_hit
){
1041 if( vg_ui
.wants_mouse
){
1042 SDL_SetWindowGrab( vg
.window
, SDL_FALSE
);
1043 SDL_SetRelativeMouseMode( SDL_FALSE
);
1046 SDL_SetWindowGrab( vg
.window
, SDL_TRUE
);
1047 SDL_SetRelativeMouseMode( SDL_TRUE
);
1050 SDL_SetCursor( vg_ui
.cursor_map
[ vg_ui
.cursor
] );
1054 static void ui_dev_colourview(void)
1056 ui_rect window
= {vg
.window_x
-256,0,256,vg
.window_y
}, swatch
;
1058 const char *names
[vg_list_size(vg_ui
.scheme
)] = {
1059 [k_ui_bg
] = "k_ui_bg", "k_ui_bg+1", "k_ui_bg+2", "k_ui_bg+3",
1060 "k_ui_bg+4", "k_ui_bg+5", "k_ui_bg+6", "k_ui_bg+7",
1062 [k_ui_fg
] = "k_ui_fg", "k_ui_fg+1", "k_ui_fg+2", "k_ui_fg+3",
1063 "k_ui_fg+4", "k_ui_fg+5", "k_ui_fg+6", "k_ui_fg+7",
1065 [k_ui_red
] = "k_ui_red", "k_ui_orange", "k_ui_yellow", "k_ui_green",
1066 "k_ui_aqua", "k_ui_blue", "k_ui_purple", "k_ui_gray",
1067 "k_ui_red+8","k_ui_orange+8","k_ui_yellow+8","k_ui_green+8",
1068 "k_ui_aqua+8","k_ui_blue+8","k_ui_purple+8","k_ui_gray+8" };
1071 ui_split_ratio( window
, k_ui_axis_v
, 0.5f
, 0.0f
, col
[0], col
[1] );
1073 for( int i
=0; i
<vg_list_size(vg_ui
.scheme
); i
++ ){
1074 int which
= (i
/8)%2;
1076 ui_split_px( col
[which
], k_ui_axis_h
, 24, 0, swatch
, col
[which
] );
1077 ui_fill( swatch
, ui_colour(i
) );
1080 ui_text(swatch
, names
[i
], 1, k_ui_align_middle_left
, ui_colourcont(i
));
1086 * -----------------------------------------------------------------------------
1089 static int ui_checkbox( ui_rect rect
, const char *str_label
, int *data
)
1092 ui_split_px( rect
, k_ui_axis_v
, rect
[2]-rect
[3], 0, label
, box
);
1093 ui_text( label
, str_label
, 1, k_ui_align_middle_left
, 0 );
1095 int changed
= ui_colourbutton( box
, k_ui_bg
);
1097 *data
= (*data
) ^ 0x1;
1100 ui_rect_pad( box
, 4 );
1101 ui_fill( box
, ui_colour( k_ui_orange
) );
1109 * -----------------------------------------------------------------------------
1112 static void _ui_textbox_make_selection( int *start
, int *end
)
1114 *start
= VG_MIN( vg_ui
.textbox
.cursor_pos
, vg_ui
.textbox
.cursor_user
);
1115 *end
= VG_MAX( vg_ui
.textbox
.cursor_pos
, vg_ui
.textbox
.cursor_user
);
1118 static void _ui_textbox_move_cursor( int *cursor0
, int *cursor1
,
1119 int dir
, int snap_together
)
1121 *cursor0
= VG_MAX( 0, vg_ui
.textbox
.cursor_user
+ dir
);
1124 VG_MIN( vg_ui
.textbox
.len
-1, strlen( vg_ui
.textbuf
)),
1128 *cursor1
= *cursor0
;
1131 static int _ui_textbox_makeroom( int datastart
, int length
)
1133 int move_to
= VG_MIN( datastart
+length
, vg_ui
.textbox
.len
-1 );
1134 int move_amount
= strlen( vg_ui
.textbuf
)-datastart
;
1135 int move_end
= VG_MIN( move_to
+move_amount
, vg_ui
.textbox
.len
-1 );
1136 move_amount
= move_end
-move_to
;
1139 memmove( &vg_ui
.textbuf
[ move_to
],
1140 &vg_ui
.textbuf
[ datastart
],
1143 vg_ui
.textbuf
[ move_end
] = '\0';
1145 return VG_MIN( length
, vg_ui
.textbox
.len
-datastart
-1 );
1148 static int _ui_textbox_delete_char( int direction
)
1151 _ui_textbox_make_selection( &start
, &end
);
1153 /* There is no selection */
1155 if( direction
== 1 ) end
= VG_MIN( end
+1, strlen( vg_ui
.textbuf
) );
1156 else if( direction
== -1 ) start
= VG_MAX( start
-1, 0 );
1159 /* Still no selction, no need to do anything */
1163 /* Copy the end->terminator to start */
1164 int remaining_length
= strlen( vg_ui
.textbuf
)+1-end
;
1165 memmove( &vg_ui
.textbuf
[ start
],
1166 &vg_ui
.textbuf
[ end
],
1171 static void _ui_textbox_to_clipboard(void)
1174 _ui_textbox_make_selection( &start
, &end
);
1178 memcpy( buffer
, &vg_ui
.textbuf
[ start
], end
-start
);
1179 buffer
[ end
-start
] = 0x00;
1180 SDL_SetClipboardText( buffer
);
1184 static void _ui_textbox_clipboard_paste(void)
1186 if( !SDL_HasClipboardText() )
1189 char *text
= SDL_GetClipboardText();
1194 int datastart
= _ui_textbox_delete_char( 0 );
1195 int length
= strlen( text
);
1196 int cpylength
= _ui_textbox_makeroom( datastart
, length
);
1198 memcpy( vg_ui
.textbuf
+ datastart
, text
, cpylength
);
1199 _ui_textbox_move_cursor( &vg_ui
.textbox
.cursor_user
,
1200 &vg_ui
.textbox
.cursor_pos
, cpylength
, 1 );
1204 static void _ui_textbox_put_char( char c
)
1206 vg_ui
.textbox
.cursor_user
= _ui_textbox_delete_char(0);
1208 if( _ui_textbox_makeroom( vg_ui
.textbox
.cursor_user
, 1 ) )
1209 vg_ui
.textbuf
[ vg_ui
.textbox
.cursor_user
] = c
;
1211 _ui_textbox_move_cursor( &vg_ui
.textbox
.cursor_user
,
1212 &vg_ui
.textbox
.cursor_pos
, 1, 1 );
1215 /* Receed secondary cursor */
1216 static void _ui_textbox_left_select(void)
1218 _ui_textbox_move_cursor( &vg_ui
.textbox
.cursor_user
, NULL
, -1, 0 );
1221 /* Match and receed both cursors */
1222 static void _ui_textbox_left(void)
1224 int cursor_diff
= vg_ui
.textbox
.cursor_pos
- vg_ui
.textbox
.cursor_user
? 0: 1;
1226 _ui_textbox_move_cursor( &vg_ui
.textbox
.cursor_user
,
1227 &vg_ui
.textbox
.cursor_pos
, -cursor_diff
, 1 );
1230 static void _ui_textbox_up(void)
1232 if( vg_ui
.textbox
.flags
& UI_TEXTBOX_MULTILINE
){
1233 int line_begin
= vg_ui
.textbox
.cursor_user
;
1235 while( line_begin
){
1236 if( vg_ui
.textbuf
[ line_begin
-1 ] == '\n' ){
1244 int line_above_begin
= line_begin
-1;
1246 while( line_above_begin
){
1247 if( vg_ui
.textbuf
[ line_above_begin
-1 ] == '\n' ){
1251 line_above_begin
--;
1254 int offset
= vg_ui
.textbox
.cursor_user
- line_begin
,
1255 line_length_above
= line_begin
- line_above_begin
-1;
1257 offset
= VG_MIN( line_length_above
, offset
);
1259 vg_ui
.textbox
.cursor_user
= line_above_begin
+offset
;
1260 vg_ui
.textbox
.cursor_pos
= line_above_begin
+offset
;
1263 vg_ui
.textbox
.cursor_user
= line_begin
;
1264 vg_ui
.textbox
.cursor_pos
= line_begin
;
1268 if( vg_ui
.textbuf_on_up
){
1269 vg_ui
.textbuf_on_up( vg_ui
.textbuf
, vg_ui
.textbox
.len
);
1274 static void _ui_textbox_down(void)
1276 if( vg_ui
.textbox
.flags
& UI_TEXTBOX_MULTILINE
){
1277 int line_begin
= vg_ui
.textbox
.cursor_user
;
1279 while( line_begin
){
1280 if( vg_ui
.textbuf
[ line_begin
-1 ] == '\n' ){
1287 int line_below_begin
= vg_ui
.textbox
.cursor_user
;
1290 if( vg_ui
.textbuf
[ line_below_begin
] == '\0' ){
1291 vg_ui
.textbox
.cursor_user
= line_below_begin
;
1292 vg_ui
.textbox
.cursor_pos
= line_below_begin
;
1296 if( vg_ui
.textbuf
[ line_below_begin
] == '\n' ){
1297 line_below_begin
++;
1301 line_below_begin
++;
1304 int line_below_end
= line_below_begin
;
1306 if( vg_ui
.textbuf
[ line_below_end
] == '\0' ||
1307 vg_ui
.textbuf
[ line_below_end
] == '\n' ){
1314 int offset
= vg_ui
.textbox
.cursor_user
- line_begin
,
1315 line_length_below
= line_below_end
- line_below_begin
-1;
1317 offset
= VG_MIN( line_length_below
, offset
);
1319 vg_ui
.textbox
.cursor_user
= line_below_begin
+offset
;
1320 vg_ui
.textbox
.cursor_pos
= line_below_begin
+offset
;
1323 if( vg_ui
.textbuf_on_down
){
1324 vg_ui
.textbuf_on_down( vg_ui
.textbuf
, vg_ui
.textbox
.len
);
1329 static void _ui_textbox_right_select(void)
1331 _ui_textbox_move_cursor( &vg_ui
.textbox
.cursor_user
, NULL
, 1, 0 );
1334 static void _ui_textbox_right(void)
1336 int cursor_diff
= vg_ui
.textbox
.cursor_pos
- vg_ui
.textbox
.cursor_user
? 0: 1;
1338 _ui_textbox_move_cursor( &vg_ui
.textbox
.cursor_user
,
1339 &vg_ui
.textbox
.cursor_pos
, +cursor_diff
, 1 );
1342 static void _ui_textbox_backspace(void)
1344 if( vg_ui
.focused_control_type
== k_ui_control_textbox
){
1345 vg_ui
.textbox
.cursor_user
= _ui_textbox_delete_char( -1 );
1346 vg_ui
.textbox
.cursor_pos
= vg_ui
.textbox
.cursor_user
;
1348 if( vg_ui
.textbuf_on_change
)
1349 vg_ui
.textbuf_on_change( vg_ui
.textbuf
, vg_ui
.textbox
.len
);
1353 static void _ui_textbox_delete(void)
1355 if( vg_ui
.focused_control_type
== k_ui_control_textbox
){
1356 vg_ui
.textbox
.cursor_user
= _ui_textbox_delete_char( 1 );
1357 vg_ui
.textbox
.cursor_pos
= vg_ui
.textbox
.cursor_user
;
1359 if( vg_ui
.textbuf_on_change
)
1360 vg_ui
.textbuf_on_change( vg_ui
.textbuf
, vg_ui
.textbox
.len
);
1364 static void _ui_textbox_home_select(void)
1366 _ui_textbox_move_cursor( &vg_ui
.textbox
.cursor_user
, NULL
, -10000, 0 );
1369 static void _ui_textbox_home(void)
1371 _ui_textbox_move_cursor( &vg_ui
.textbox
.cursor_user
,
1372 &vg_ui
.textbox
.cursor_pos
, -10000, 1 );
1375 static void _ui_textbox_end_select(void)
1377 _ui_textbox_move_cursor( &vg_ui
.textbox
.cursor_user
, NULL
, 10000, 0 );
1380 static void _ui_textbox_end(void)
1382 _ui_textbox_move_cursor( &vg_ui
.textbox
.cursor_user
,
1383 &vg_ui
.textbox
.cursor_pos
,
1384 vg_ui
.textbox
.len
-1, 1 );
1387 static void _ui_textbox_select_all(void)
1389 _ui_textbox_move_cursor( &vg_ui
.textbox
.cursor_user
, NULL
, 10000, 0);
1390 _ui_textbox_move_cursor( &vg_ui
.textbox
.cursor_pos
, NULL
, -10000, 0);
1393 static void _ui_textbox_cut(void)
1395 _ui_textbox_to_clipboard();
1396 vg_ui
.textbox
.cursor_user
= _ui_textbox_delete_char(0);
1397 vg_ui
.textbox
.cursor_pos
= vg_ui
.textbox
.cursor_user
;
1400 static void _ui_textbox_enter(void)
1402 if( vg_ui
.focused_control_type
== k_ui_control_textbox
){
1403 if( vg_ui
.textbox
.flags
& UI_TEXTBOX_MULTILINE
){
1404 _ui_textbox_put_char( '\n' );
1407 if( !(vg_ui
.textbox
.flags
& UI_TEXTBOX_AUTOFOCUS
) )
1411 if( vg_ui
.textbuf_on_enter
){
1412 vg_ui
.textbuf_on_enter( vg_ui
.textbuf
, vg_ui
.textbox
.len
);
1418 * based on a visual character coordinate relative to the anchor of the textbox,
1419 * this works out the linear place in the buffer that coordinate maps to
1421 * input coordinates go in co[0], co[1], and the result index is in co[2]
1423 static void _ui_textbox_calc_index_from_grid( int co
[3], int wrap_length
)
1428 while( (c
= vg_ui
.textbuf
[i
[2]]) ){
1429 if( i
[1]==co
[1] && i
[0]>=co
[0] ) break;
1431 if( i
[0] >= wrap_length
){
1436 if( c
>= 32 && c
<= 126 ){
1440 else if( c
== '\n' ){
1443 if( i
[1] > co
[1] ) break;
1457 * based on the index specied in co[2], work out the visual character
1458 * coordinates and store them in co[0], co[1]
1460 static void _ui_textbox_index_calc_coords( int co
[3], int wrap_length
)
1468 while( (c
= vg_ui
.textbuf
[i
++]) ){
1469 if( i
> co
[2] ) break;
1470 if( co
[0] >= wrap_length
){
1474 if( c
>= 32 && c
<= 126 ) co
[0] ++;
1475 else if( c
== '\n' ){
1483 * calculate the number of characters remaining until either:
1484 * - the wrap_length limit is hit
1485 * - end of the line/string
1487 * index must be fully populated with visual X/Y, and linear index
1489 static int _ui_textbox_run_remaining( int index
[3], int wrap_length
)
1491 int i
=0, printed_chars
=0;
1493 while( (c
= vg_ui
.textbuf
[index
[2] + (i
++)]) ){
1494 if( index
[0]+i
>= wrap_length
) break;
1495 if( c
>= 32 && c
<= 126 ) printed_chars
++;
1496 else if( c
== '\n' ) break;
1499 return printed_chars
+1;
1502 static int ui_textbox( ui_rect rect
, char *buf
, u32 len
, u32 flags
)
1504 int clickup
= ui_click_up(UI_MOUSE_LEFT
),
1505 click
= ui_clicking(UI_MOUSE_LEFT
) | clickup
,
1506 target
= ui_inside_rect( rect
, vg_ui
.mouse_click
) && click
,
1507 hover
= ui_inside_rect( rect
, vg_ui
.mouse
);
1509 u32 col_base
= ui_colour( k_ui_bg
),
1510 col_highlight
= ui_colour( k_ui_fg
),
1511 col_cursor
= (0x00ffffff & ui_colour(k_ui_fg
))|0x7f000000;
1516 rect_copy( rect
, text_rect
);
1518 if( flags
& UI_TEXTBOX_MULTILINE
) text_rect
[3] = rect
[3]-16;
1519 else text_rect
[3] = 14;
1522 ui_rect_center( rect
, text_rect
);
1524 ui_px wrap_length
= 1024;
1526 if( flags
& UI_TEXTBOX_WRAP
)
1527 wrap_length
= text_rect
[2] / UI_GLYPH_SPACING_X
;
1530 vg_ui
.cursor
= k_ui_cursor_ibeam
;
1533 if( vg_ui
.focused_control_id
== buf
){
1534 ui_fill( rect
, col_base
);
1535 ui_ntext( text_rect
, buf
, wrap_length
, 1, k_ui_align_left
, 0 );
1537 if( !(flags
& UI_TEXTBOX_AUTOFOCUS
) &&
1538 ((clickup
||ui_click_down(UI_MOUSE_LEFT
)) && !target
) ){
1542 vg_ui
.focused_control_hit
= 1;
1543 if( click
&& target
){
1545 (vg_ui
.mouse_click
[0] - text_rect
[0]) / UI_GLYPH_SPACING_X
,
1546 (vg_ui
.mouse_click
[1] - text_rect
[1]) / 14,
1550 (vg_ui
.mouse
[0] - text_rect
[0]) / UI_GLYPH_SPACING_X
,
1551 (vg_ui
.mouse
[1] - text_rect
[1]) / 14,
1555 if( flags
& UI_TEXTBOX_MULTILINE
){
1556 _ui_textbox_calc_index_from_grid( p0
, wrap_length
);
1557 _ui_textbox_calc_index_from_grid( p1
, wrap_length
);
1559 vg_ui
.textbox
.cursor_pos
= p0
[2];
1560 vg_ui
.textbox
.cursor_user
= p1
[2];
1563 int max
= strlen( buf
);
1564 vg_ui
.textbox
.cursor_pos
= VG_MAX( 0, VG_MIN( max
, p0
[0] )),
1565 vg_ui
.textbox
.cursor_user
= VG_MAX( 0, VG_MIN( max
, p1
[0] ));
1569 ui_outline( rect
, -2, vg_ui
.scheme
[ k_ui_orange
] );
1573 int c0
= vg_ui
.textbox
.cursor_pos
,
1574 c1
= vg_ui
.textbox
.cursor_user
,
1575 start
= VG_MIN( c0
, c1
),
1576 end
= VG_MAX( c0
, c1
),
1579 if( flags
& (UI_TEXTBOX_MULTILINE
|UI_TEXTBOX_WRAP
) ){
1581 int pos
[3], remaining
= chars
;
1584 _ui_textbox_index_calc_coords( pos
, wrap_length
);
1587 cursor
[0] = text_rect
[0] + pos
[0]*UI_GLYPH_SPACING_X
-1;
1588 cursor
[1] = text_rect
[1] + pos
[1]*14;
1591 ui_fill( cursor
, col_cursor
);
1592 rect_copy( cursor
, vg_ui
.click_fader_end
);
1596 /* TODO: scan for newlines and stuff
1597 * eol or wrap_length can have line breaks! */
1599 int run
= _ui_textbox_run_remaining( pos
, wrap_length
);
1600 run
= VG_MIN( run
, remaining
);
1602 cursor
[0] = text_rect
[0] + pos
[0]*UI_GLYPH_SPACING_X
-1;
1603 cursor
[1] = text_rect
[1] + pos
[1]*14;
1604 cursor
[2] = (float)(run
)*(float)UI_GLYPH_SPACING_X
;
1607 ui_fill( cursor
, col_cursor
);
1614 rect_copy( cursor
, vg_ui
.click_fader_end
);
1618 cursor
[0] = text_rect
[0] + start
*UI_GLYPH_SPACING_X
-1;
1619 cursor
[1] = text_rect
[1];
1626 cursor
[2] = (float)(chars
)*(float)UI_GLYPH_SPACING_X
;
1629 if( (vg_ui
.click_fade_opacity
<=0.0f
) &&
1630 ui_clip( rect
, cursor
, cursor
) ){
1631 ui_fill( cursor
, col_cursor
);
1634 rect_copy( cursor
, vg_ui
.click_fader_end
);
1641 if( click
|| (flags
& UI_TEXTBOX_AUTOFOCUS
) ){
1642 if( (target
&& hover
) || (flags
& UI_TEXTBOX_AUTOFOCUS
) ){
1645 ui_fill( rect
, col_highlight
);
1646 vg_ui
.ignore_input_frames
= 2;
1647 rect_copy( rect
, vg_ui
.click_fader
);
1648 rect_copy( rect
, vg_ui
.click_fader_end
);
1650 vg_ui
.click_fade_opacity
= 1.0f
;
1651 vg_ui
.textbuf
= buf
;
1652 vg_ui
.focused_control_hit
= 1;
1653 vg_ui
.focused_control_type
= k_ui_control_textbox
;
1654 vg_ui
.textbox
.len
= len
;
1655 vg_ui
.textbox
.flags
= flags
;
1656 vg_ui
.textbox
.cursor_pos
= 0;
1657 vg_ui
.textbox
.cursor_user
= 0;
1659 SDL_StartTextInput();
1663 ui_fill( rect
, col_base
);
1666 ui_outline( rect
, -1, col_highlight
);
1669 ui_ntext( text_rect
, buf
, wrap_length
, 1, k_ui_align_left
, 0 );
1675 * -----------------------------------------------------------------------------
1681 static void _ui_proc_key( SDL_Keysym ev
)
1683 if( vg_ui
.focused_control_type
!= k_ui_control_textbox
){
1687 struct textbox_mapping
1692 void (*handler
)(void);
1696 { 0, SDLK_LEFT
, _ui_textbox_left
},
1697 { KMOD_SHIFT
, SDLK_LEFT
, _ui_textbox_left_select
},
1698 { 0, SDLK_RIGHT
, _ui_textbox_right
},
1699 { KMOD_SHIFT
, SDLK_RIGHT
, _ui_textbox_right_select
},
1700 { 0, SDLK_DOWN
, _ui_textbox_down
},
1701 { 0, SDLK_UP
, _ui_textbox_up
},
1702 { 0, SDLK_BACKSPACE
, _ui_textbox_backspace
},
1703 { KMOD_SHIFT
, SDLK_BACKSPACE
, _ui_textbox_backspace
},
1704 { KMOD_CTRL
, SDLK_BACKSPACE
, _ui_textbox_backspace
},
1705 { 0, SDLK_DELETE
, _ui_textbox_delete
},
1706 { 0, SDLK_HOME
, _ui_textbox_home
},
1707 { KMOD_SHIFT
, SDLK_HOME
, _ui_textbox_home_select
},
1708 { 0, SDLK_END
, _ui_textbox_end
},
1709 { KMOD_SHIFT
, SDLK_END
, _ui_textbox_end_select
},
1710 { KMOD_CTRL
, SDLK_a
, _ui_textbox_select_all
},
1711 { KMOD_CTRL
, SDLK_c
, _ui_textbox_to_clipboard
},
1712 { KMOD_CTRL
, SDLK_x
, _ui_textbox_cut
},
1713 { KMOD_CTRL
, SDLK_v
, _ui_textbox_clipboard_paste
},
1714 { 0, SDLK_RETURN
, _ui_textbox_enter
},
1715 { 0, SDLK_ESCAPE
, ui_defocus_all
},
1720 if( ev
.mod
& KMOD_SHIFT
)
1723 if( ev
.mod
& KMOD_CTRL
)
1726 if( ev
.mod
& KMOD_ALT
)
1729 for( int i
=0; i
<vg_list_size( mappings
); i
++ ){
1730 struct textbox_mapping
*mapping
= &mappings
[i
];
1732 if( mapping
->key
== ev
.sym
){
1733 if( mapping
->mod
== 0 ){
1739 else if( (mod
& mapping
->mod
) == mapping
->mod
){
1748 * Callback for text entry mode
1750 VG_STATIC
void ui_proc_utf8( const char *text
)
1752 if( vg_ui
.focused_control_type
== k_ui_control_textbox
){
1753 const char *ptr
= text
;
1756 if( *ptr
!= '`' ) _ui_textbox_put_char( *ptr
);
1760 if( vg_ui
.textbuf_on_change
){
1761 vg_ui
.textbuf_on_change( vg_ui
.textbuf
, vg_ui
.textbox
.len
);
1766 #endif /* VG_IMGUI_H */