1 /* Copyright (C) 2021-2022 Harry Godden (hgn) - All Rights Reserved */
9 #include "vg/vg_shader.h"
11 static struct vg_shader _shader_ui
=
19 "layout (location=0) in vec2 a_co;"
20 "layout (location=1) in vec2 a_uv;"
21 "layout (location=2) in vec4 a_colour;"
22 "layout (location=3) in vec4 a_clip;"
25 "out vec2 aTexCoords;"
32 "gl_Position = vec4( uPv * vec3( a_co, 1.0 ), 1.0 );"
33 "aTexCoords = a_uv * 0.0078125;"
44 "uniform sampler2D uTexGlyphs;"
55 "float clip_blend = step( aWsp.x, aClip.z ) *"
56 "step( aWsp.y, aClip.w ) *"
57 "step( aClip.x, aWsp.x ) *"
58 "step( aClip.y, aWsp.y ); "
60 "vec4 glyph = vec4(1.0,1.0,1.0,1.0);"
62 "if( aColour.a == 0.0 )"
64 "glyph = texture( uTexGlyphs, aTexCoords );"
65 "glyph.a = smoothstep( 0.47, 0.53, glyph.r );"
69 "glyph.a = aColour.a;"
72 "FragColor = vec4( aColour.rgb, glyph.a*clip_blend );"
77 static struct vg_shader _shader_ui_image
=
79 .name
= "[vg] ui_image",
85 "layout (location=0) in vec2 a_co;"
86 "layout (location=1) in vec2 a_uv;"
87 "layout (location=2) in vec4 a_colour;"
88 "layout (location=3) in vec4 a_clip;"
91 "out vec2 aTexCoords;"
98 "gl_Position = vec4( uPv * vec3( a_co, 1.0 ), 1.0 );"
99 "aTexCoords = a_uv * 0.0078125;"
100 "aColour = a_colour;"
110 "uniform sampler2D uTexImage;"
111 "out vec4 FragColor;"
113 "in vec2 aTexCoords;"
121 "float clip_blend = step( aWsp.x, aClip.z ) *"
122 "step( aWsp.y, aClip.w ) *"
123 "step( aClip.x, aWsp.x ) *"
124 "step( aClip.y, aWsp.y ); "
126 "vec4 colour = texture( uTexImage, aTexCoords );"
127 "float value = dot(vec4(1.0),colour)*0.25;"
129 "vec3 col = vec3(pow(cos(value*3.14159265*2.0)*0.5+0.5,0.5))"
130 "* vec3(step(value,0.5),0.3,step(1.0-value,0.5));"
132 "FragColor = vec4( col*4.0, clip_blend );"
138 typedef u32 ui_colour
;
139 typedef ui_px ui_rect
[4];
140 typedef struct ui_colourset ui_colourset
;
142 /* Relative to cursor p0 */
145 k_text_align_left
= 0,
146 k_text_align_right
= 1,
147 k_text_align_center
= 2
162 ui_colour background
;
192 struct ui_vert
*vertex_buffer
;
194 u32 max_verts
, max_indices
, cur_vert
, cur_indice
;
199 u32 capture_mouse_id
;
204 int click_state
; /* 0: released, 1: on down, 2: pressed, 3: on release */
206 ui_colourset
*colours
;
222 #define UI_GLYPH_SPACING_X 8
224 static GLuint ui_glyph_texture
= 0;
225 static ui_colourset ui_default_colours
= {
231 VG_STATIC
void _vg_ui_init(void)
233 if( !vg_shader_compile( &_shader_ui
) ||
234 !vg_shader_compile( &_shader_ui_image
) )
235 vg_fatal_exit_loop( "Failed to compile ui shader" );
239 * ----------------------------------------
242 vg_uictx
.max_indices
= 20000;
243 vg_uictx
.max_verts
= 30000;
244 vg_uictx
.colours
= &ui_default_colours
;
246 /* Generate the buffer we are gonna be drawing to */
247 glGenVertexArrays( 1, &vg_uictx
.vao
);
248 glGenBuffers( 1, &vg_uictx
.vbo
);
249 glGenBuffers( 1, &vg_uictx
.ebo
);
251 glBindVertexArray( vg_uictx
.vao
);
252 glBindBuffer( GL_ARRAY_BUFFER
, vg_uictx
.vbo
);
254 glBufferData( GL_ARRAY_BUFFER
,
255 vg_uictx
.max_verts
* sizeof( struct ui_vert
),
256 NULL
, GL_DYNAMIC_DRAW
);
257 glBindVertexArray( vg_uictx
.vao
);
259 glBindBuffer( GL_ELEMENT_ARRAY_BUFFER
, vg_uictx
.ebo
);
260 glBufferData( GL_ELEMENT_ARRAY_BUFFER
,
261 vg_uictx
.max_indices
* sizeof( u16
), NULL
, GL_DYNAMIC_DRAW
);
266 u32
const stride
= sizeof( struct ui_vert
);
269 glVertexAttribPointer( 0, 2, GL_SHORT
, GL_FALSE
,
270 stride
, (void *)offsetof( struct ui_vert
, co
) );
271 glEnableVertexAttribArray( 0 );
274 glVertexAttribPointer( 1, 2, GL_UNSIGNED_BYTE
, GL_FALSE
,
275 stride
, (void *)offsetof( struct ui_vert
, uv
) );
276 glEnableVertexAttribArray( 1 );
279 glVertexAttribPointer( 2, 4, GL_UNSIGNED_BYTE
, GL_TRUE
, stride
,
280 (void *)offsetof( struct ui_vert
, colour
) );
281 glEnableVertexAttribArray( 2 );
284 glVertexAttribPointer( 3, 4, GL_SHORT
, GL_FALSE
, stride
,
285 (void *)offsetof( struct ui_vert
, clip
) );
286 glEnableVertexAttribArray( 3 );
290 /* Alloc RAM default context */
291 u32 vert_size
= vg_uictx
.max_verts
*sizeof(struct ui_vert
),
292 inds_size
= vg_align8( vg_uictx
.max_indices
*sizeof(u16
) );
294 vg_uictx
.vertex_buffer
= vg_linear_alloc( vg_mem
.rtmemory
, vert_size
);
295 vg_uictx
.indice_buffer
= vg_linear_alloc( vg_mem
.rtmemory
, inds_size
);
298 * -----------------------------------------------------
301 /* Load default font */
303 #include "vg/vg_pxfont_thin.h"
306 u32 pixels
= 0, total
= 256*256, data
= 0;
309 while( pixels
< total
){
310 for( int b
= 31; b
>= 0; b
-- ){
311 image
[ pixels
++ ] = (compressed
[data
] & (0x1u
<< b
))? 0xffu
: 0x00u
;
313 if( pixels
>= total
){
321 glGenTextures( 1, &ui_glyph_texture
);
322 glBindTexture( GL_TEXTURE_2D
, ui_glyph_texture
);
323 glTexImage2D( GL_TEXTURE_2D
, 0, GL_R8
, 256, 256, 0,
324 GL_RED
, GL_UNSIGNED_BYTE
, image
);
331 static struct ui_vert
*ui_fill_rect_uv( ui_rect rect
, u32 colour
, ui_px uv
[4] );
333 VG_STATIC
void ui_draw( m3x3f view_override
)
335 u32 num_indices_normal
= vg_uictx
.cur_indice
;
337 /* Append images to back of buffer */
338 for( int i
= 0; i
< vg_uictx
.image_count
; i
++ )
340 ui_fill_rect_uv( vg_uictx
.images
[i
].rc
, 0xffffffff,
341 (ui_px
[4]){0,0,128,128} );
344 glBindVertexArray( vg_uictx
.vao
);
346 glBindBuffer( GL_ARRAY_BUFFER
, vg_uictx
.vbo
);
347 glBufferSubData( GL_ARRAY_BUFFER
, 0,
348 vg_uictx
.cur_vert
* sizeof( struct ui_vert
),
349 vg_uictx
.vertex_buffer
);
351 glBindBuffer( GL_ELEMENT_ARRAY_BUFFER
, vg_uictx
.ebo
);
352 glBufferSubData( GL_ELEMENT_ARRAY_BUFFER
, 0,
353 vg_uictx
.cur_indice
* sizeof( u16
),
354 vg_uictx
.indice_buffer
);
357 glBlendFunc(GL_SRC_ALPHA
, GL_ONE_MINUS_SRC_ALPHA
);
358 glBlendEquation(GL_FUNC_ADD
);
360 glUseProgram( _shader_ui
.id
);
362 m3x3f view
= M3X3_IDENTITY
;
366 view_override
= view
;
368 m3x3_translate( view
, (v3f
){ -1.0f
, 1.0f
, 0.0f
} );
369 m3x3_scale( view
, (v3f
){ 1.0f
/((float)vg
.window_x
*0.5f
),
370 -1.0f
/((float)vg
.window_y
*0.5f
), 1.0f
} );
374 glUniformMatrix3fv( glGetUniformLocation( _shader_ui
.id
, "uPv" ), 1,
375 GL_FALSE
, (float *)view_override
);
377 glActiveTexture( GL_TEXTURE0
);
378 glBindTexture( GL_TEXTURE_2D
, ui_glyph_texture
);
379 glUniform1i( glGetUniformLocation( _shader_ui
.id
, "uTexGlyphs" ), 0 );
381 glDrawElements( GL_TRIANGLES
, num_indices_normal
,
382 GL_UNSIGNED_SHORT
, (void*)(0) );
386 glUseProgram( _shader_ui_image
.id
);
387 glUniformMatrix3fv( glGetUniformLocation( _shader_ui_image
.id
, "uPv" ), 1,
388 GL_FALSE
, (float *)view_override
);
390 glActiveTexture( GL_TEXTURE1
);
391 glUniform1i( glGetUniformLocation( _shader_ui_image
.id
, "uTexImage" ), 1 );
393 /* Draw image elements */
394 for( int i
= 0; i
< vg_uictx
.image_count
; i
++ )
396 struct ui_image
*img
= &vg_uictx
.images
[i
];
398 glBindTexture( GL_TEXTURE_2D
, img
->image
);
399 glDrawElements( GL_TRIANGLES
, 6, GL_UNSIGNED_SHORT
,
400 (void*)( (num_indices_normal
+ 6*i
)*sizeof(u16
) ) );
409 VG_STATIC
void ui_rect_copy( ui_rect src
, ui_rect dst
)
417 VG_STATIC
void ui_rect_pad( ui_rect rect
, ui_px pad
)
428 static struct ui_qnode
*ui_current(void)
430 return &vg_uictx
.stack
[ vg_uictx
.stack_count
-1 ];
433 VG_STATIC
void ui_new_node(void)
435 if( vg_uictx
.stack_count
== vg_list_size( vg_uictx
.stack
) )
437 vg_error( "[UI] Stack overflow while creating box!" );
441 struct ui_qnode
*parent
= &vg_uictx
.stack
[ vg_uictx
.stack_count
-1 ];
442 struct ui_qnode
*node
= &vg_uictx
.stack
[ vg_uictx
.stack_count
++ ];
443 ui_rect_copy( vg_uictx
.cursor
, node
->rect
);
445 if( parent
->mouse_over
)
447 if( vg_uictx
.mouse
[0] >= node
->rect
[0] &&
448 vg_uictx
.mouse
[0] < node
->rect
[0]+node
->rect
[2] &&
449 vg_uictx
.mouse
[1] >= node
->rect
[1] &&
450 vg_uictx
.mouse
[1] < node
->rect
[1]+node
->rect
[3] )
451 node
->mouse_over
= 1;
453 node
->mouse_over
= 0;
457 node
->mouse_over
= 0;
461 static int ui_hasmouse(void)
463 struct ui_qnode
*node
= ui_current();
464 return (node
->mouse_over
&& (node
->capture_id
== vg_uictx
.capture_mouse_id
));
467 VG_STATIC
void ui_end(void)
469 struct ui_qnode
*node
= &vg_uictx
.stack
[ --vg_uictx
.stack_count
];
470 ui_rect_copy( node
->rect
, vg_uictx
.cursor
);
473 VG_STATIC
void ui_end_down(void)
475 ui_px height
= ui_current()->rect
[3];
477 vg_uictx
.cursor
[1] += height
;
480 VG_STATIC
void ui_end_right(void)
482 ui_px width
= ui_current()->rect
[2];
484 vg_uictx
.cursor
[0] += width
;
487 VG_STATIC
void ui_fill_y(void)
489 struct ui_qnode
*node
= ui_current();
490 vg_uictx
.cursor
[3] = node
->rect
[3] - (vg_uictx
.cursor
[1]-node
->rect
[1]);
493 VG_STATIC
void ui_fill_x(void)
495 struct ui_qnode
*node
= ui_current();
496 vg_uictx
.cursor
[2] = node
->rect
[2] - (vg_uictx
.cursor
[0]-node
->rect
[0]);
499 VG_STATIC
void ui_align_bottom(void)
501 struct ui_qnode
*node
= ui_current();
502 vg_uictx
.cursor
[1] = node
->rect
[1] + node
->rect
[3] - vg_uictx
.cursor
[3];
505 VG_STATIC
void ui_align_right(void)
507 struct ui_qnode
*node
= ui_current();
508 vg_uictx
.cursor
[0] = node
->rect
[0] + node
->rect
[2] - vg_uictx
.cursor
[2];
511 VG_STATIC
void ui_align_top(void)
513 vg_uictx
.cursor
[1] = ui_current()->rect
[1];
516 VG_STATIC
void ui_align_left(void)
518 vg_uictx
.cursor
[0] = ui_current()->rect
[0];
521 VG_STATIC
void ui_clamp_rect( ui_rect parent
, ui_rect dest
)
523 dest
[0] = vg_min( parent
[0] + parent
[2] - dest
[2], dest
[0] );
524 dest
[1] = vg_min( parent
[1] + parent
[3] - dest
[3], dest
[1] );
525 dest
[0] = vg_max( parent
[0], dest
[0] );
526 dest
[1] = vg_max( parent
[1], dest
[1] );
529 VG_STATIC
void ui_capture_mouse( u32 id
)
531 struct ui_qnode
*node
= &vg_uictx
.stack
[ vg_uictx
.stack_count
-1 ];
532 node
->capture_id
= id
;
534 if( !vg_uictx
.capture_lock
&& node
->mouse_over
)
536 vg_uictx
.capture_mouse_id
= id
;
540 static int ui_want_mouse(void)
542 return vg_uictx
.capture_mouse_id
== 0? 0: 1;
545 VG_STATIC
void ui_set_clip( ui_rect clip
)
547 vg_uictx
.clipping
[0] = clip
[0];
548 vg_uictx
.clipping
[1] = clip
[1];
549 vg_uictx
.clipping
[2] = clip
[0] + clip
[2];
550 vg_uictx
.clipping
[3] = clip
[1] + clip
[3];
553 VG_STATIC
void ui_release_clip(void)
555 vg_uictx
.clipping
[0] = -32000;
556 vg_uictx
.clipping
[1] = -32000;
557 vg_uictx
.clipping
[2] = 32000;
558 vg_uictx
.clipping
[3] = 32000;
561 static struct ui_vert
*ui_fill_rect_uv( ui_rect rect
, u32 colour
, ui_px uv
[4] )
563 /* this if far from ideal but stops us from crashing */
564 if( (vg_uictx
.cur_vert
+ 6 > vg_uictx
.max_verts
) ||
565 (vg_uictx
.cur_indice
+ 4 > vg_uictx
.max_indices
))
566 return vg_uictx
.vertex_buffer
;
568 struct ui_vert
*vertices
= &vg_uictx
.vertex_buffer
[ vg_uictx
.cur_vert
];
569 u16
*indices
= &vg_uictx
.indice_buffer
[ vg_uictx
.cur_indice
];
571 vertices
[0].co
[0] = rect
[0];
572 vertices
[0].co
[1] = rect
[1];
573 vertices
[0].uv
[0] = uv
[0];
574 vertices
[0].uv
[1] = uv
[1];
575 vertices
[0].colour
= colour
;
576 vertices
[1].co
[0] = rect
[0]+rect
[2];
577 vertices
[1].co
[1] = rect
[1];
578 vertices
[1].uv
[0] = uv
[2];
579 vertices
[1].uv
[1] = uv
[1];
580 vertices
[1].colour
= colour
;
581 vertices
[2].co
[0] = rect
[0]+rect
[2];
582 vertices
[2].co
[1] = rect
[1]+rect
[3];
583 vertices
[2].uv
[0] = uv
[2];
584 vertices
[2].uv
[1] = uv
[3];
585 vertices
[2].colour
= colour
;
586 vertices
[3].co
[0] = rect
[0];
587 vertices
[3].co
[1] = rect
[1]+rect
[3];
588 vertices
[3].uv
[0] = uv
[0];
589 vertices
[3].uv
[1] = uv
[3];
590 vertices
[3].colour
= colour
;
591 u16 ind_start
= vg_uictx
.cur_vert
;
593 ui_rect_copy( vg_uictx
.clipping
, vertices
[0].clip
);
594 ui_rect_copy( vg_uictx
.clipping
, vertices
[1].clip
);
595 ui_rect_copy( vg_uictx
.clipping
, vertices
[2].clip
);
596 ui_rect_copy( vg_uictx
.clipping
, vertices
[3].clip
);
598 indices
[0] = ind_start
+0;
599 indices
[1] = ind_start
+2;
600 indices
[2] = ind_start
+1;
602 indices
[3] = ind_start
+0;
603 indices
[4] = ind_start
+3;
604 indices
[5] = ind_start
+2;
606 vg_uictx
.cur_indice
+= 6;
607 vg_uictx
.cur_vert
+= 4;
612 static struct ui_vert
*ui_fill_rect( ui_rect rect
, u32 colour
)
614 return ui_fill_rect_uv( rect
, colour
, (ui_px
[4]){ 4,4, 4,4 } );
617 static ui_px
ui_text_line_offset( const char *str
, ui_px scale
,
618 enum ui_text_align align
)
620 if( align
== k_text_align_left
)
624 const char *_c
= str
;
627 while( (c
= *(_c
++)) )
628 if( c
>= 32 && c
<= 126 )
633 if( align
== k_text_align_right
)
634 return -length
* scale
*8;
636 return (-length
* scale
*8) / 2;
639 VG_STATIC
void ui_text( ui_px pos
[2],
640 const char *str
, ui_px scale
, enum ui_text_align align
)
643 u32 current_colour
= 0x00ffffff;
645 const char *_c
= str
;
648 text_cursor
[0] = pos
[0] + ui_text_line_offset( str
, scale
, align
);
649 text_cursor
[1] = pos
[1];
650 text_cursor
[2] = 8*scale
;
651 text_cursor
[3] = 14*scale
;
653 while( (c
= *(_c
++)) ){
655 text_cursor
[1] += 14*scale
;
656 text_cursor
[0] = pos
[0] + ui_text_line_offset( _c
, scale
, align
);
662 glyph_base
[0] = glyph_index
& 0xf;
663 glyph_base
[1] = (glyph_index
-glyph_base
[0])>>4;
668 ui_fill_rect_uv( text_cursor
, current_colour
, (ui_px
[4])
676 else if( c
== '\x1B' ){
679 for( int i
= 0; i
< 3; i
++ ){
685 case '0': current_colour
= 0x00ffffff; break;
686 case '3'|'1'<<8: current_colour
= 0x00201fee; break;
687 case '3'|'2'<<8: current_colour
= 0x0037e420; break;
688 case '3'|'3'<<8: current_colour
= 0x000ed8e2; break;
689 case '3'|'4'<<8: current_colour
= 0x00f15010; break;
690 case '3'|'5'<<8: current_colour
= 0x00ee20ee; break;
691 case '3'|'6'<<8: current_colour
= 0x00eeee20; break;
692 case '3'|'7'<<8: current_colour
= 0x00ffffff; break;
698 colour_id
|= _c
[i
] << (i
*8);
708 else if( c
== '\t' ){
709 text_cursor
[0] += UI_GLYPH_SPACING_X
*scale
*4;
713 text_cursor
[0] += UI_GLYPH_SPACING_X
*scale
;
720 VG_STATIC
void ui_begin( ui_px res_x
, ui_px res_y
)
722 vg_uictx
.cursor
[0] = 0;
723 vg_uictx
.cursor
[1] = 0;
724 vg_uictx
.cursor
[2] = res_x
;
725 vg_uictx
.cursor
[3] = res_y
;
727 ui_rect_copy( vg_uictx
.cursor
, vg_uictx
.stack
[0].rect
);
728 vg_uictx
.stack
[0].mouse_over
= 1;
730 vg_uictx
.stack_count
= 1;
732 vg_uictx
.cur_vert
= 0;
733 vg_uictx
.cur_indice
= 0;
737 if( vg_uictx
.click_state
== 0 )
738 vg_uictx
.capture_mouse_id
= 0;
740 vg_uictx
.image_count
= 0;
743 VG_STATIC
void ui_resolve(void)
745 if( vg_uictx
.stack_count
-1 )
747 vg_error( "[UI] Mismatched node create/drestroy!" );
751 if( vg_uictx
.click_state
== 3 || vg_uictx
.click_state
== 0 )
753 vg_uictx
.capture_lock
= 0;
757 VG_STATIC
void ui_set_mouse( int x
, int y
, int click_state
)
759 vg_uictx
.mouse
[0] = x
;
760 vg_uictx
.mouse
[1] = y
;
762 vg_uictx
.click_state
= click_state
;
766 * High level controls
774 ui_px drag_offset
[2];
779 k_button_released
= 0,
780 k_button_start_click
,
785 static int ui_button(void)
787 u32 uid
= vg_uictx
.control_id
++;
791 ui_capture_mouse( uid
);
795 ui_fill_rect( vg_uictx
.cursor
, vg_uictx
.colours
->hover
);
797 if( vg_uictx
.click_state
== 1 )
799 vg_uictx
.capture_lock
= 1;
800 return k_button_start_click
;
802 else if( vg_uictx
.capture_lock
&& vg_uictx
.click_state
== 3 )
803 return k_button_click
;
804 else if( vg_uictx
.capture_lock
&& vg_uictx
.click_state
== 2 )
805 return k_button_hold
;
807 return k_button_click
;
810 ui_fill_rect( vg_uictx
.cursor
, vg_uictx
.colours
->main
);
813 return k_button_released
;
816 static int ui_window( struct ui_window
*window
, u32 control_group
)
820 window
->transform
[0] = vg_uictx
.mouse
[0]+window
->drag_offset
[0];
821 window
->transform
[1] = vg_uictx
.mouse
[1]+window
->drag_offset
[1];
823 ui_clamp_rect( vg_uictx
.stack
[0].rect
, window
->transform
);
825 if( vg_uictx
.click_state
== 0 || vg_uictx
.click_state
== 3 )
831 ui_rect_copy( window
->transform
, vg_uictx
.cursor
);
835 ui_capture_mouse( vg_uictx
.control_id
++ );
838 vg_uictx
.cursor
[3] = 25;
841 ui_capture_mouse( vg_uictx
.control_id
++ );
843 struct ui_vert
*drag_bar
= ui_fill_rect( vg_uictx
.cursor
, 0xff555555 );
846 vg_uictx
.cursor
[0] += 2;
847 vg_uictx
.cursor
[1] += 2;
848 ui_text( vg_uictx
.cursor
, window
->title
, 2, 0 );
851 vg_uictx
.cursor
[3] = 25;
852 vg_uictx
.cursor
[2] = 25;
855 ui_rect_pad( vg_uictx
.cursor
, 4 );
859 vg_info( "Click clacked\n" );
861 vg_uictx
.cursor
[0] += 2;
862 ui_text( vg_uictx
.cursor
, "x", 2, 0 );
867 drag_bar
[0].colour
= 0xff777777;
868 drag_bar
[1].colour
= 0xff777777;
869 drag_bar
[2].colour
= 0xff777777;
870 drag_bar
[3].colour
= 0xff777777;
873 if( vg_uictx
.click_state
== 1 )
876 window
->drag_offset
[0] = window
->transform
[0]-vg_uictx
.mouse
[0];
877 window
->drag_offset
[1] = window
->transform
[1]-vg_uictx
.mouse
[1];
887 VG_STATIC
void ui_push_image( ui_rect rc
, GLuint image
)
889 struct ui_image
*img
= &vg_uictx
.images
[ vg_uictx
.image_count
++ ];
890 ui_rect_copy( rc
, img
->rc
);
900 struct ui_slider_vector
902 float *data
, min
, max
;
903 struct ui_slider sub
[4];
912 VG_STATIC
void ui_slider( struct ui_slider
*slider
)
916 ui_px slider_start
= vg_uictx
.cursor
[0];
918 float const ftotal
= vg_uictx
.cursor
[2],
919 fwidth
= ftotal
*0.25f
,
920 fmove
= ftotal
- fwidth
,
921 fstart
= fwidth
*0.5f
,
922 frange
= slider
->max
-slider
->min
,
923 fpos
= (*slider
->data
- slider
->min
) / frange
;
925 ui_fill_rect( vg_uictx
.cursor
, 0xff111111 );
926 vg_uictx
.cursor
[2] = fwidth
;
927 vg_uictx
.cursor
[0] = slider_start
+ fpos
* fmove
;
929 u32 uid
= vg_uictx
.control_id
++;
930 int status
= ui_button();
931 if( vg_uictx
.capture_lock
&& (vg_uictx
.capture_mouse_id
== uid
))
933 float ui_new
= vg_uictx
.mouse
[0],
934 local
= ui_new
- (slider_start
+ fstart
),
935 zo
= vg_clampf(local
/ fmove
,0.0f
,1.0f
);
937 *slider
->data
= vg_lerpf( slider
->min
, slider
->max
, zo
);
940 vg_uictx
.cursor
[0] += 4;
941 vg_uictx
.cursor
[1] += 4;
944 snprintf( buf
, 12, "%.2f", *slider
->data
);
945 ui_text( vg_uictx
.cursor
, buf
, 1, 0 );
950 VG_STATIC
void ui_slider_vector( struct ui_slider_vector
*slider
)
952 for( int i
=0; i
<slider
->len
; i
++ )
954 slider
->sub
[i
].data
= &slider
->data
[i
];
955 slider
->sub
[i
].min
= slider
->min
;
956 slider
->sub
[i
].max
= slider
->max
;
957 ui_slider( &slider
->sub
[i
] );
961 VG_STATIC
void ui_checkbox( struct ui_checkbox
*cb
)
963 if( ui_button() == k_button_click
)
967 ui_rect_pad( vg_uictx
.cursor
, 4 );
969 ui_fill_rect( vg_uictx
.cursor
, 0xff00e052 );
971 ui_fill_rect( vg_uictx
.cursor
, 0xff0052e0 );