-/* Copyright (C) 2021-2023 Harry Godden (hgn) - All Rights Reserved */
+/* Copyright (C) 2021-2024 Harry Godden (hgn) - All Rights Reserved */
/*
* Principles:
* point.
*/
-#ifndef VG_IMGUI_H
-#define VG_IMGUI_H
+#pragma once
-#define VG_GAME
-#include "vg/vg.h"
-#include "vg/vg_tex.h"
-#include "vg/vg_shader.h"
+#include "vg_engine.h"
+#include "vg_tex.h"
+#include "vg_shader.h"
typedef i16 ui_px;
typedef ui_px ui_rect[4];
k_ui_brighter = 8
};
-static ui_px k_ui_widget_height = 28,
- k_ui_scale = 1,
- k_ui_padding = 8;
+enum ui_shader {
+ k_ui_shader_colour,
+ k_ui_shader_image,
+ k_ui_shader_hsv,
+};
+
+extern ui_px k_ui_widget_height,
+ k_ui_scale,
+ k_ui_padding;
typedef u32 ui_scheme[8*4];
};
typedef struct ui_font ui_font;
-static const ui_font vg_ui_font_small = {
- .glyph_width = 8,
- .glyph_height = 14,
- .glyph_baseline = 4,
- .line_height = 14,
- .sheet_size = 256,
- .spacing = 8,
- .ascii_start = ' ',
- .offset_y = 0
-},
-vg_ui_font_big = {
- .glyph_width = 12,
- .glyph_height = 21,
- .glyph_baseline = 6,
- .line_height = 21,
- .sheet_size = 256,
- .spacing = 10,
- .ascii_start = ' ',
- .offset_y = 84
-};
+extern ui_font vg_ui_font_small, vg_ui_font_big;
#define UI_RGB( STDHEX ) 0xff000000 |\
((STDHEX&0x000000ff)<<16) |\
#define UI_BOTTOM 0x4
#define UI_RIGHT 0x8
-struct{
+struct vg_imgui
+{
struct ui_vert *vertex_buffer;
u16 *indice_buffer;
u32 max_verts, max_indices,
f32 hue; /* lol this sucks */
}
-static vg_ui = {
- .scheme = {
- [ k_ui_bg+0 ] = UI_RGB( 0x1d2021 ),
- [ k_ui_bg+1 ] = UI_RGB( 0x282828 ),
- [ k_ui_bg+2 ] = UI_RGB( 0x3c3836 ),
- [ k_ui_bg+3 ] = UI_RGB( 0x504945 ),
- [ k_ui_bg+4 ] = UI_RGB( 0x665c54 ),
- [ k_ui_bg+5 ] = UI_RGB( 0x7c6f64 ),
- [ k_ui_bg+6 ] = UI_RGB( 0x928374 ),
- [ k_ui_bg+7 ] = UI_RGB( 0xa89984 ),
-
- [ k_ui_fg+0 ] = UI_RGB( 0xebdbb2 ),
- [ k_ui_fg+1 ] = UI_RGB( 0xfbf1c7 ),
- [ k_ui_fg+2 ] = UI_RGB( 0xd5c4a1 ),
- [ k_ui_fg+3 ] = UI_RGB( 0xbdae93 ),
- [ k_ui_fg+4 ] = UI_RGB( 0xa89984 ),
- [ k_ui_fg+5 ] = UI_RGB( 0x000000 ),
- [ k_ui_fg+6 ] = UI_RGB( 0x000000 ),
- [ k_ui_fg+7 ] = UI_RGB( 0x000000 ),
-
- [ k_ui_red ] = UI_RGB( 0xcc241d ),
- [ k_ui_orange ] = UI_RGB( 0xd65d0e ),
- [ k_ui_yellow ] = UI_RGB( 0xd79921 ),
- [ k_ui_green ] = UI_RGB( 0x98971a ),
- [ k_ui_aqua ] = UI_RGB( 0x689d6a ),
- [ k_ui_blue ] = UI_RGB( 0x458588 ),
- [ k_ui_purple ] = UI_RGB( 0xb16286 ),
- [ k_ui_gray ] = UI_RGB( 0x928374 ),
- [ k_ui_red + k_ui_brighter ] = UI_RGB( 0xfb4934 ),
- [ k_ui_orange + k_ui_brighter ] = UI_RGB( 0xfe8019 ),
- [ k_ui_yellow + k_ui_brighter ] = UI_RGB( 0xfabd2f ),
- [ k_ui_green + k_ui_brighter ] = UI_RGB( 0xb8bb26 ),
- [ k_ui_aqua + k_ui_brighter ] = UI_RGB( 0x8ec07c ),
- [ k_ui_blue + k_ui_brighter ] = UI_RGB( 0x83a598 ),
- [ k_ui_purple + k_ui_brighter ] = UI_RGB( 0xd3869b ),
- [ k_ui_gray + k_ui_brighter ] = UI_RGB( 0xa89984 ),
- },
- .font = &vg_ui_font_small,
- .colour = {1.0f,1.0f,1.0f,1.0f},
- .bg_inverse_ratio = {1,1}
-};
-
-static struct vg_shader _shader_ui ={
- .name = "[vg] ui - transparent",
- .link = NULL,
- .vs = {
- .orig_file = NULL,
- .static_src =
- "layout (location=0) in vec2 a_co;"
- "layout (location=1) in vec2 a_uv;"
- "layout (location=2) in vec4 a_colour;"
- "uniform mat3 uPv;"
- "uniform vec2 uBGInverseRatio;"
- ""
- "out vec4 aTexCoords;"
- "out vec4 aColour;"
- ""
- "void main(){"
- "vec4 proj_pos = vec4( uPv * vec3( a_co, 1.0 ), 1.0 );"
- "gl_Position = proj_pos;"
- "aTexCoords = vec4( a_uv * 0.00390625, "
- " (proj_pos.xy*0.5+0.5) * uBGInverseRatio );"
- "aColour = a_colour;"
- "}",
- },
- .fs = {
- .orig_file = NULL,
- .static_src =
- "uniform sampler2D uTexGlyphs;"
- "uniform sampler2D uTexBG;"
- "uniform vec4 uColour;"
- "uniform float uSpread;"
- "out vec4 FragColor;"
- ""
- "in vec4 aTexCoords;"
- "in vec4 aColour;"
- ""
- "vec2 rand_hash22( vec2 p ){"
- "vec3 p3 = fract(vec3(p.xyx) * 213.8976123);"
- "p3 += dot(p3, p3.yzx+19.19);"
- "return fract(vec2((p3.x + p3.y)*p3.z, (p3.x+p3.z)*p3.y));"
- "}"
- ""
- "void main(){"
- "vec4 diffuse = aColour;"
-
- "vec4 avg = vec4(0.0);"
-
- "if( aColour.a == 0.0 ){"
- "avg = aColour;"
- "avg.a = texture( uTexGlyphs, aTexCoords.xy ).r;"
- "}"
- "else{"
- "if( uSpread > 0.0001 ){"
- "for( int i=0; i<4; i ++ ){"
- "vec2 spread = rand_hash22(aTexCoords.zw+vec2(float(i)));"
- "avg += texture( uTexBG, aTexCoords.zw + (spread-0.5)*uSpread );"
- "}"
- "avg *= 0.25;"
- "avg.a = 1.0;"
- "avg.rgb = mix( avg.rgb, aColour.rgb, aColour.a );"
- "}"
- "else{"
- "avg = aColour;"
- "}"
- "}"
-
- "FragColor = avg * uColour;"
- "}"
- }
-};
-
-static struct vg_shader _shader_ui_image = {
- .name = "[vg] ui_image",
- .link = NULL,
- .vs =
- {
- .orig_file = NULL,
- .static_src =
- "layout (location=0) in vec2 a_co;"
- "layout (location=1) in vec2 a_uv;"
- "layout (location=2) in vec4 a_colour;"
- "uniform mat3 uPv;"
-
- "out vec2 aTexCoords;"
- "out vec4 aColour;"
- "out vec2 aWsp;"
-
- "void main()"
- "{"
- "gl_Position = vec4( uPv * vec3( a_co, 1.0 ), 1.0 );"
- "aTexCoords = a_uv * 0.00390625;"
- "aColour = a_colour;"
-
- "aWsp = a_co;"
- "}",
- },
- .fs =
- {
- .orig_file = NULL,
- .static_src =
- "uniform sampler2D uTexImage;"
- "uniform vec4 uColour;"
- "out vec4 FragColor;"
-
- "in vec2 aTexCoords;"
- "in vec4 aColour;"
- "in vec2 aWsp;"
-
- "void main()"
- "{"
- "vec4 colour = texture( uTexImage, aTexCoords );"
- "FragColor = colour * uColour;"
- "}"
- }
-};
-
-static struct vg_shader _shader_ui_hsv = {
- .name = "[vg] ui_hsv",
- .link = NULL,
- .vs = {
- .orig_file = NULL,
- .static_src =
- "layout (location=0) in vec2 a_co;"
- "layout (location=1) in vec2 a_uv;"
- "layout (location=2) in vec4 a_colour;"
- "uniform mat3 uPv;"
-
- "out vec2 aTexCoords;"
- "out vec4 aColour;"
- "out vec2 aWsp;"
-
- "void main()"
- "{"
- "gl_Position = vec4( uPv * vec3( a_co, 1.0 ), 1.0 );"
- "aTexCoords = a_uv * 0.00390625;"
- "aColour = a_colour;"
-
- "aWsp = a_co;"
- "}",
- },
- .fs =
- {
- .orig_file = NULL,
- .static_src =
- "uniform float uHue;"
- "out vec4 FragColor;"
-
- "in vec2 aTexCoords;"
- "in vec4 aColour;"
- "in vec2 aWsp;"
-
- "void main()"
- "{"
- "vec3 c = vec3( uHue, aTexCoords );"
- "vec4 K = vec4(1.0,2.0/3.0,1.0/3.0,3.0);"
- "vec3 p = abs(fract(c.xxx+K.xyz)*6.0 - K.www);"
- "vec3 colour = c.z*mix(K.xxx,clamp(p-K.xxx,0.0,1.0),c.y);"
- "FragColor = vec4( colour, 1.0 );"
- "}"
- }
-};
-
-static void _vg_ui_init(void){
- if( !vg_shader_compile( &_shader_ui ) ||
- !vg_shader_compile( &_shader_ui_image ) ||
- !vg_shader_compile( &_shader_ui_hsv ) ){
- vg_fatal_error( "Failed to compile ui shader" );
- }
-
- /*
- * Vertex buffer
- * ----------------------------------------
- */
-
- vg_ui.max_indices = 20000;
- vg_ui.max_verts = 30000;
-
- /* Generate the buffer we are gonna be drawing to */
- glGenVertexArrays( 1, &vg_ui.vao );
- glGenBuffers( 1, &vg_ui.vbo );
- glGenBuffers( 1, &vg_ui.ebo );
-
- glBindVertexArray( vg_ui.vao );
- glBindBuffer( GL_ARRAY_BUFFER, vg_ui.vbo );
-
- glBufferData( GL_ARRAY_BUFFER,
- vg_ui.max_verts * sizeof( struct ui_vert ),
- NULL, GL_DYNAMIC_DRAW );
- glBindVertexArray( vg_ui.vao );
-
- glBindBuffer( GL_ELEMENT_ARRAY_BUFFER, vg_ui.ebo );
- glBufferData( GL_ELEMENT_ARRAY_BUFFER,
- vg_ui.max_indices * sizeof( u16 ), NULL, GL_DYNAMIC_DRAW );
-
- VG_CHECK_GL_ERR();
-
- /* Set pointers */
- u32 const stride = sizeof( struct ui_vert );
-
- /* XY */
- glVertexAttribPointer( 0, 2, GL_SHORT, GL_FALSE, stride,
- (void *)offsetof( struct ui_vert, co ) );
- glEnableVertexAttribArray( 0 );
-
- /* UV */
- glVertexAttribPointer( 1, 2, GL_UNSIGNED_SHORT, GL_FALSE, stride,
- (void *)offsetof( struct ui_vert, uv ) );
- glEnableVertexAttribArray( 1 );
-
- /* COLOUR */
- glVertexAttribPointer( 2, 4, GL_UNSIGNED_BYTE, GL_TRUE, stride,
- (void *)offsetof( struct ui_vert, colour ) );
- glEnableVertexAttribArray( 2 );
-
- VG_CHECK_GL_ERR();
-
- /* Alloc RAM default context */
- u32 vert_size = vg_ui.max_verts*sizeof(struct ui_vert),
- inds_size = vg_align8( vg_ui.max_indices*sizeof(u16) );
-
- vg_ui.vertex_buffer = vg_linear_alloc( vg_mem.rtmemory, vert_size );
- vg_ui.indice_buffer = vg_linear_alloc( vg_mem.rtmemory, inds_size );
-
- /* font
- * -----------------------------------------------------
- */
-
- /* Load default font */
- u32 compressed[] = {
- #include "vg/vg_pxfont_thin.h"
- };
-
- u32 pixels = 0, total = 256*256, data = 0;
- u8 image[256*256];
-
- while( pixels < total ){
- for( int b = 31; b >= 0; b-- ){
- image[ pixels ++ ] = (compressed[data] & (0x1u << b))? 0xffu: 0x00u;
-
- if( pixels >= total ){
- total = 0;
- break;
- }
- }
- data++;
- }
-
- glGenTextures( 1, &vg_ui.tex_glyphs );
- glBindTexture( GL_TEXTURE_2D, vg_ui.tex_glyphs );
- glTexImage2D( GL_TEXTURE_2D, 0, GL_R8, 256, 256, 0,
- GL_RED, GL_UNSIGNED_BYTE, image );
-
- VG_CHECK_GL_ERR();
- glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
- glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
- glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
- glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
-
- /*
- * Cursors
- * ---------------------------------------------------------------
- */
-
- vg_ui.cursor_map[ k_ui_cursor_default ] =
- SDL_CreateSystemCursor( SDL_SYSTEM_CURSOR_ARROW );
- vg_ui.cursor_map[ k_ui_cursor_hand ] =
- SDL_CreateSystemCursor( SDL_SYSTEM_CURSOR_HAND );
- vg_ui.cursor_map[ k_ui_cursor_ibeam ] =
- SDL_CreateSystemCursor( SDL_SYSTEM_CURSOR_IBEAM );
-}
-
-enum ui_shader {
- k_ui_shader_colour,
- k_ui_shader_image,
- k_ui_shader_hsv,
-};
-
-static void rect_copy( ui_rect a, ui_rect b ){
- for( int i=0; i<4; i++ )
- b[i] = a[i];
-}
-
-static void ui_flush( enum ui_shader shader, f32 w, f32 h ){
- u32 vertex_offset = vg_ui.vert_start*sizeof(ui_vert),
- vertex_count = vg_ui.cur_vert-vg_ui.vert_start,
- vertex_size = vertex_count*sizeof(ui_vert),
-
- indice_offset = vg_ui.indice_start*sizeof(u16),
- indice_count = vg_ui.cur_indice-vg_ui.indice_start,
- indice_size = indice_count * sizeof(u16);
-
- if( !vertex_size || !indice_size )
- return;
-
- glBindVertexArray( vg_ui.vao );
- glBindBuffer( GL_ARRAY_BUFFER, vg_ui.vbo );
- glBufferSubData( GL_ARRAY_BUFFER, vertex_offset, vertex_size,
- vg_ui.vertex_buffer+vg_ui.vert_start );
-
- glBindBuffer( GL_ELEMENT_ARRAY_BUFFER, vg_ui.ebo );
- glBufferSubData( GL_ELEMENT_ARRAY_BUFFER, indice_offset, indice_size,
- vg_ui.indice_buffer+vg_ui.indice_start );
-
- glDisable( GL_DEPTH_TEST );
- glEnable( GL_BLEND );
- glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
- glBlendEquation( GL_FUNC_ADD );
- glDisable( GL_CULL_FACE );
-
- m3x3f view = M3X3_IDENTITY;
- m3x3_translate( view, (v3f){ -1.0f, 1.0f, 0.0f } );
- m3x3_scale( view, (v3f){ 1.0f/(w*0.5f),
- -1.0f/(h*0.5f), 1.0f } );
-
- if( shader == k_ui_shader_colour ){
- glUseProgram( _shader_ui.id );
-
- glUniformMatrix3fv( glGetUniformLocation( _shader_ui.id, "uPv" ), 1,
- GL_FALSE, (float *)view );
- glUniform4fv( glGetUniformLocation( _shader_ui.id, "uColour" ), 1,
- vg_ui.colour );
-
- glActiveTexture( GL_TEXTURE0 );
- glBindTexture( GL_TEXTURE_2D, vg_ui.tex_glyphs );
- glUniform1i( glGetUniformLocation( _shader_ui.id, "uTexGlyphs" ), 0 );
-
- glActiveTexture( GL_TEXTURE1 );
- glBindTexture( GL_TEXTURE_2D, vg_ui.tex_bg );
- glUniform1i( glGetUniformLocation( _shader_ui.id, "uTexBG" ), 1 );
- glUniform1f( glGetUniformLocation( _shader_ui.id, "uSpread" ),
- vg_ui.frosting );
- glUniform2fv( glGetUniformLocation( _shader_ui.id, "uBGInverseRatio" ),
- 1, vg_ui.bg_inverse_ratio );
- }
- else if( shader == k_ui_shader_image ){
- glUseProgram( _shader_ui_image.id );
- glUniformMatrix3fv( glGetUniformLocation( _shader_ui_image.id, "uPv" ), 1,
- GL_FALSE, (float *)view );
- glUniform1i( glGetUniformLocation(_shader_ui_image.id,"uTexImage"), 0 );
- glUniform4fv( glGetUniformLocation( _shader_ui_image.id, "uColour" ), 1,
- vg_ui.colour );
- }
- else if( shader == k_ui_shader_hsv ){
- glUseProgram( _shader_ui_hsv.id );
- glUniformMatrix3fv( glGetUniformLocation( _shader_ui_hsv.id, "uPv" ), 1,
- GL_FALSE, (float *)view );
- glUniform1f( glGetUniformLocation(_shader_ui_hsv.id,"uHue"), vg_ui.hue );
- }
- else
- vg_fatal_error( "Invalid UI shader (%d)\n", shader );
-
- glDrawElements( GL_TRIANGLES, indice_count, GL_UNSIGNED_SHORT,
- (void *)(vg_ui.indice_start*sizeof(u16)) );
-
- glDisable( GL_BLEND );
-
- vg_ui.indice_start = vg_ui.cur_indice;
- vg_ui.vert_start = vg_ui.cur_vert;
-}
-
-static void ui_fill_rect( ui_rect rect, u32 colour, ui_px uv[4] ){
- /* this if far from ideal but stops us from crashing */
- if( (vg_ui.cur_vert + 4 > vg_ui.max_verts) ||
- (vg_ui.cur_indice + 6 > vg_ui.max_indices))
- return;
-
- struct ui_vert *vertices = &vg_ui.vertex_buffer[ vg_ui.cur_vert ];
- u16 *indices = &vg_ui.indice_buffer[ vg_ui.cur_indice ];
-
- for( int i=0; i<4; i++ ){
- vertices[i].colour = colour;
- }
-
- vertices[0].co[0] = rect[0];
- vertices[0].co[1] = rect[1];
- vertices[0].uv[0] = uv[0];
- vertices[0].uv[1] = uv[1];
- vertices[1].co[0] = rect[0]+rect[2];
- vertices[1].co[1] = rect[1];
- vertices[1].uv[0] = uv[2];
- vertices[1].uv[1] = uv[1];
- vertices[2].co[0] = rect[0]+rect[2];
- vertices[2].co[1] = rect[1]+rect[3];
- vertices[2].uv[0] = uv[2];
- vertices[2].uv[1] = uv[3];
- vertices[3].co[0] = rect[0];
- vertices[3].co[1] = rect[1]+rect[3];
- vertices[3].uv[0] = uv[0];
- vertices[3].uv[1] = uv[3];
- u16 ind_start = vg_ui.cur_vert;
-
- u16 start = vg_ui.cur_vert;
- u32 mesh[] = { 0,2,1, 0,3,2 };
-
- for( u32 i=0; i<vg_list_size(mesh); i++ ){
- indices[i] = start+mesh[i];
- }
-
- vg_ui.cur_indice += 6;
- vg_ui.cur_vert += 4;
-}
-
-static void ui_fill( ui_rect rect, u32 colour ){
- ui_fill_rect( rect, colour, (ui_px[4]){ 4,4,4,4 } );
-}
-
-static void ui_outline( ui_rect rect, ui_px thickness, u32 colour, u32 mask ){
- /* this if far from ideal but stops us from crashing */
- if( (vg_ui.cur_vert + 8 > vg_ui.max_verts) ||
- (vg_ui.cur_indice + 24 > vg_ui.max_indices))
- return;
-
- struct ui_vert *vertices = &vg_ui.vertex_buffer[ vg_ui.cur_vert ];
- u16 *indices = &vg_ui.indice_buffer[ vg_ui.cur_indice ];
-
- for( int i=0; i<8; i++ ){
- vertices[i].uv[0] = 4;
- vertices[i].uv[1] = 4;
- vertices[i].colour = colour;
- }
-
- vertices[0].co[0] = rect[0];
- vertices[0].co[1] = rect[1];
- vertices[1].co[0] = rect[0]+rect[2];
- vertices[1].co[1] = rect[1];
- vertices[2].co[0] = rect[0]+rect[2];
- vertices[2].co[1] = rect[1]+rect[3];
- vertices[3].co[0] = rect[0];
- vertices[3].co[1] = rect[1]+rect[3];
- vertices[4].co[0] = vertices[0].co[0]-thickness;
- vertices[4].co[1] = vertices[0].co[1]-thickness;
- vertices[5].co[0] = vertices[1].co[0]+thickness;
- vertices[5].co[1] = vertices[1].co[1]-thickness;
- vertices[6].co[0] = vertices[2].co[0]+thickness;
- vertices[6].co[1] = vertices[2].co[1]+thickness;
- vertices[7].co[0] = vertices[3].co[0]-thickness;
- vertices[7].co[1] = vertices[3].co[1]+thickness;
-
- u16 start = vg_ui.cur_vert;
- 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 };
-
- if( !mask )
- mask = UI_TOP|UI_LEFT|UI_BOTTOM|UI_RIGHT;
-
- u32 c = 0;
- for( u32 i=0; i<vg_list_size(mesh)/6; i++ ){
- if( (0x1<<i) & mask ){
- for( u32 j=0; j<6; j++ )
- indices[c ++] = start+mesh[i*6+j];
- }
- }
-
- vg_ui.cur_indice += c;
- vg_ui.cur_vert += 8;
-}
-
-static void ui_split( ui_rect rect,
- enum ui_axis other, ui_px width, ui_px gap,
- ui_rect l, ui_rect r ){
- enum ui_axis dir = other ^ 0x1;
-
- if( width < 0 ) width = rect[ 2+dir ] + width;
-
- ui_rect temp;
- rect_copy( rect, temp );
-
- l[ dir ] = temp[ dir ];
- r[ dir ] = temp[ dir ] + width + (gap/2);
- l[ other ] = temp[ other ];
- r[ other ] = temp[ other ];
- l[ 2+dir ] = width - (gap/2);
- r[ 2+dir ] = temp[ 2+dir ] - width - (gap/2);
- l[ 2+other ] = temp[ 2+other ];
- r[ 2+other ] = temp[ 2+other ];
-}
-
-static ui_px ui_text_line_width( const char *str );
-
-static void ui_rect_center( ui_rect parent, ui_rect rect ){
- rect[0] = parent[0] + (parent[2]-rect[2])/2;
- rect[1] = parent[1] + (parent[3]-rect[3])/2;
-}
-
-static void ui_fit_item( ui_rect rect, ui_px size[2], ui_rect d ){
- i32 rp = (i32)rect[2] * (i32)size[1],
- rc = (i32)size[0] * (i32)rect[3];
-
- enum ui_axis dir, other;
- if( rc > rp ) dir = k_ui_axis_h;
- else dir = k_ui_axis_v;
- other = dir ^ 0x1;
-
- d[2+dir] = rect[2+dir];
- d[2+other] = (rect[2+dir] * size[other]) / size[dir];
-
- ui_rect_center( rect, d );
-}
-
-static void ui_split_ratio( ui_rect rect, enum ui_axis dir, float ratio,
- ui_px gap, ui_rect l, ui_rect r ){
- ui_px width = (float)rect[ 2+(dir^0x1) ] * ratio;
- ui_split( rect, dir, width, gap, l, r );
-}
-
-static void ui_rect_pad( ui_rect rect, ui_px pad[2] ){
- rect[0] += pad[0];
- rect[1] += pad[1];
- rect[2] -= pad[0]*2;
- rect[3] -= pad[1]*2;
-}
-
-static ui_px ui_text_line_width( const char *str ){
- int length = 0;
- const char *_c = str;
- u8 c;
-
- while( (c = *(_c ++)) ){
- if( c >= 32 ) length ++;
- else if( c == '\n' ) break;
- }
-
- return length * vg_ui.font->spacing;
-}
-
-static ui_px ui_text_string_height( const char *str ){
- int height = 1;
- const char *_c = str;
- u8 c;
-
- while( (c = *(_c ++)) ){
- if( c == '\n' ) height ++;
- }
-
- return height * 14;
-}
-
-static ui_px ui_text_aligned_x( const char *str, ui_rect rect, ui_px scale,
- enum ui_align align ){
- enum ui_align lwr = k_ui_align_lwr & align;
- if( lwr == k_ui_align_left ){
- return rect[0];
- }
- else{
- ui_px width = ui_text_line_width( str ) * scale;
-
- if( lwr == k_ui_align_right )
- return rect[0] + rect[2]-width;
- else
- return rect[0] + (rect[2]-width)/2;
- }
-}
-
-static ui_px ui_min( ui_px a, ui_px b ){ return a<b?a:b; }
-static ui_px ui_max( ui_px a, ui_px b ){ return a>b?a:b; }
-static ui_px ui_clamp( ui_px a, ui_px min, ui_px max ){
- return ui_min( max, ui_max( a, min ) );
-}
-
-static int ui_clip( ui_rect parent, ui_rect child, ui_rect clipped ){
- ui_px parent_max[2], child_max[2];
- parent_max[0] = parent[0]+parent[2];
- parent_max[1] = parent[1]+parent[3];
- child_max[0] = child[0]+child[2];
- child_max[1] = child[1]+child[3];
-
- clipped[0] = ui_clamp( child[0], parent[0], parent_max[0] );
- clipped[1] = ui_clamp( child[1], parent[1], parent_max[1] );
- clipped[2] = ui_clamp( child_max[0], parent[0], parent_max[0] );
- clipped[3] = ui_clamp( child_max[1], parent[1], parent_max[1] );
-
- if( clipped[0] == clipped[2] ||
- clipped[1] == clipped[3] )
- return 0;
-
- clipped[2] -= clipped[0];
- clipped[3] -= clipped[1];
-
- return 1;
-}
-
-static int ui_inside_rect( ui_rect rect, ui_px co[2] ){
- if( co[0] >= rect[0] &&
- co[1] >= rect[1] &&
- co[0] < rect[0]+rect[2] &&
- co[1] < rect[1]+rect[3] ){
- return 1;
- }
- else
- return 0;
-}
-
-static int ui_click_down( u32 mask ){
- if( vg_ui.ignore_input_frames ) return 0;
- if( (vg_ui.mouse_state[0] & mask) &&
- !(vg_ui.mouse_state[1] & mask) )
- return 1;
- else
- return 0;
-}
-
-static int ui_clicking( u32 mask ){
- if( vg_ui.ignore_input_frames ) return 0;
- return vg_ui.mouse_state[0] & mask;
-}
-
-static int ui_click_up( u32 mask ){
- if( vg_ui.ignore_input_frames ) return 0;
- if( (vg_ui.mouse_state[1] & mask) &&
- !(vg_ui.mouse_state[0] & mask) )
- return 1;
- else
- return 0;
-}
-
-static void ui_prerender(void){
- int x, y;
- vg_ui.mouse_state[1] = vg_ui.mouse_state[0];
- vg_ui.mouse_state[0] = SDL_GetMouseState( &x, &y );
- vg_ui.mouse_delta[0] = x-vg_ui.mouse[0];
- vg_ui.mouse_delta[1] = y-vg_ui.mouse[1];
- vg_ui.mouse[0] = x;
- vg_ui.mouse[1] = y;
-
- vg_ui.cur_vert = 0;
- vg_ui.cur_indice = 0;
- vg_ui.vert_start = 0;
- vg_ui.indice_start = 0;
- vg_ui.focused_control_hit = 0;
- vg_ui.cursor = k_ui_cursor_default;
- vg_ui.wants_mouse = 0;
-
- if( vg_ui.ignore_input_frames ){
- vg_ui.ignore_input_frames --;
- return;
- }
-
- if( ui_click_down(UI_MOUSE_LEFT)||ui_click_down(UI_MOUSE_MIDDLE) ){
- vg_ui.mouse_click[0] = vg_ui.mouse[0];
- vg_ui.mouse_click[1] = vg_ui.mouse[1];
- }
-}
-
-static u32 ui_colour( enum ui_scheme_colour id ){
- return vg_ui.scheme[ id ];
-}
-
-/* get an appropriately contrasting colour given the base */
-static u32 ui_colourcont( enum ui_scheme_colour id ){
- if ( id < k_ui_bg+6 ) return ui_colour( k_ui_fg );
- else if( id < k_ui_fg ) return ui_colour( k_ui_bg+1 );
- else if( id < k_ui_hue ) return ui_colour( k_ui_bg+3 );
- else if( id < k_ui_red+k_ui_brighter ) return ui_colour( k_ui_fg );
- else return ui_colour( k_ui_fg+1 );
-}
-
-static void ui_hex_to_norm( u32 hex, v4f norm ){
- norm[0] = ((hex ) & 0xff);
- norm[1] = ((hex>>8 ) & 0xff);
- norm[2] = ((hex>>16) & 0xff);
- norm[3] = ((hex>>24) & 0xff);
- v4_muls( norm, 1.0f/255.0f, norm );
-}
-
-static void ui_text_glyph( const struct ui_font *font, ui_px scale,
- u8 glyph, ui_rect out_texcoords ){
- glyph -= font->ascii_start;
-
- ui_px per_row = font->sheet_size / font->glyph_width,
- column = (ui_px)glyph % per_row,
- row = (glyph - column) / per_row;
-
- out_texcoords[0] = column * font->glyph_width;
- out_texcoords[1] = row * font->glyph_height + font->offset_y;
- out_texcoords[2] = out_texcoords[0] + font->glyph_width;
- out_texcoords[3] = out_texcoords[1] + font->glyph_height;
-}
-
-static u32 ui_opacity( u32 colour, f32 opacity ){
- u32 alpha = opacity * 255.0f;
- return (colour & 0x00ffffff) | (alpha << 24);
-}
-
-static u32 ui_ntext( ui_rect rect, const char *str, u32 len, ui_px scale,
- enum ui_align align, u32 colour ){
- ui_rect text_cursor;
- if( colour == 0 ) colour = ui_colour( k_ui_fg );
-
- colour &= 0x00ffffff;
-
- const char *_c = str;
- u8 c;
-
- text_cursor[0] = ui_text_aligned_x( str, rect, scale, align );
- text_cursor[1] = rect[1];
- text_cursor[2] = vg_ui.font->glyph_width*scale;
- text_cursor[3] = vg_ui.font->glyph_height*scale;
-
- u32 printed_chars = 0;
-
- if( align & (k_ui_align_middle|k_ui_align_bottom) ){
- ui_px height = ui_text_string_height( str ) * scale;
-
- if( align & k_ui_align_bottom )
- text_cursor[1] += rect[3]-height;
- else
- text_cursor[1] += (rect[3]-height)/2;
- }
-
- while( (c = *(_c ++)) ){
- if( printed_chars >= len ){
- printed_chars = 0;
- text_cursor[1] += vg_ui.font->line_height*scale;
- text_cursor[0] = ui_text_aligned_x( _c, rect, scale, align );
- text_cursor[0] -= vg_ui.font->spacing*scale;
-
- ui_rect glyph;
- ui_text_glyph( vg_ui.font, scale, '\xb6' /*FIXME*/, glyph );
- ui_fill_rect( text_cursor, 0x00ffffff, glyph );
- text_cursor[0] += vg_ui.font->spacing*scale;
- }
-
- if( c == '\n' ){
- text_cursor[1] += vg_ui.font->line_height*scale;
- text_cursor[0] = ui_text_aligned_x( _c, rect, scale, align );
- printed_chars = 0;
- continue;
- }
- else if( c >= 33 ){
- ui_rect glyph;
- ui_text_glyph( vg_ui.font, scale, c, glyph );
-
- ui_rect cursor_clipped;
- if( ui_clip( rect, text_cursor, cursor_clipped ) ){
- ui_fill_rect( cursor_clipped, colour, glyph );
- }
- }
- else if( c == '\x1B' ){
- /* vt codes */
- _c ++;
- u16 colour_id = 0;
- for( int i=0; i<3; i ++ ){
- if( _c[i] ){
- if( _c[i] == 'm' ){
- _c = _c + i + 1;
-
- switch( colour_id ){
- case '0': colour = ui_colour( k_ui_fg ); break;
- case '3'|'0'<<8: colour = ui_colour( k_ui_bg ); break;
- case '3'|'1'<<8: colour = ui_colour( k_ui_red ); break;
- case '3'|'2'<<8: colour = ui_colour( k_ui_green ); break;
- case '3'|'3'<<8: colour = ui_colour( k_ui_yellow ); break;
- case '3'|'4'<<8: colour = ui_colour( k_ui_blue ); break;
- case '3'|'5'<<8: colour = ui_colour( k_ui_purple ); break;
- case '3'|'6'<<8: colour = ui_colour( k_ui_aqua ); break;
- case '3'|'7'<<8: colour = 0xffffffff; break;
- }
-
- colour &= 0x00ffffff;
- break;
- }
-
- colour_id |= _c[i] << (i*8);
- }
- else{
- _c = _c +i;
- break;
- }
- }
-
- continue;
- }
- else if( c == '\t' ){
- text_cursor[0] += vg_ui.font->spacing*scale*4;
- printed_chars += 4;
- continue;
- }
-
- text_cursor[0] += vg_ui.font->spacing*scale;
- printed_chars ++;
- }
-
- return printed_chars;
-}
-
-static void ui_text( ui_rect rect, const char *str, ui_px scale,
- enum ui_align align, u32 colour ){
- ui_ntext( rect, str, 1024, scale, align, colour );
-}
-
-/*
- * Standard layout stuff
- * -----------------------------------------------------------------------------
- */
-
-static void ui_panel( ui_rect in_rect, ui_rect out_panel ){
- ui_fill( in_rect, ui_colour( k_ui_bg+1 ) );
- ui_outline( in_rect, 1, ui_colour( k_ui_bg+7 ), 0 );
- rect_copy( in_rect, out_panel );
- ui_rect_pad( out_panel, (ui_px[2]){ k_ui_padding, k_ui_padding } );
-}
-
-static void ui_label( ui_rect rect, const char *text, ui_px size,
- ui_px gap, ui_rect r ){
- ui_rect l;
- ui_px width = (ui_text_line_width(text)+vg_ui.font->spacing) * size;
- ui_split( rect, k_ui_axis_v, width, gap, l, r );
- ui_text( l, text, 1, k_ui_align_middle_left, 0 );
-}
-
-static void ui_standard_widget( ui_rect inout_panel, ui_rect out_rect,
- ui_px count ){
- ui_px height = (count * vg_ui.font->glyph_height + 18) * k_ui_scale;
- ui_split( inout_panel, k_ui_axis_h, height, k_ui_padding,
- out_rect, inout_panel );
-}
-
-static void ui_info( ui_rect inout_panel, const char *text ){
- ui_rect box;
- ui_standard_widget( inout_panel, box, 1 );
- ui_text( box, text, 1, k_ui_align_middle_left, 0 );
-}
-
-static void ui_image( ui_rect rect, GLuint image ){
- ui_flush( k_ui_shader_colour, vg.window_x, vg.window_y );
- glActiveTexture( GL_TEXTURE0 );
- glBindTexture( GL_TEXTURE_2D, image );
- ui_fill_rect( rect, 0xffffffff, (ui_px[4]){ 0,256,256,0 } );
- ui_flush( k_ui_shader_image, vg.window_x, vg.window_y );
-}
-
-static u32 v4f_u32_colour( v4f colour ){
- u32 r = colour[0] * 255.0f,
- g = colour[1] * 255.0f,
- b = colour[2] * 255.0f,
- a = colour[3] * 255.0f;
-
- return r | (g<<8) | (b<<16) | (a<<24);
-}
-
-static void ui_defocus_all(void){
- if( vg_ui.focused_control_type == k_ui_control_textbox ){
- SDL_StopTextInput();
- if( vg_ui.textbox.callbacks.escape )
- vg_ui.textbox.callbacks.escape();
- }
-
- vg_ui.focused_control_id = NULL;
- vg_ui.focused_control_hit = 0;
- vg_ui.focused_control_type = k_ui_control_none;
-}
+extern vg_ui;
enum ui_button_state {
k_ui_button_none = 0x0,
k_ui_button_hover = 0x8
};
-/* TODO: split this out into a formatless button and one that auto fills */
-static enum ui_button_state ui_colourbutton( ui_rect rect,
- enum ui_scheme_colour colour,
- enum ui_scheme_colour hover_colour,
- enum ui_scheme_colour hi_colour,
- bool const fill ){
- int clickup= ui_click_up(UI_MOUSE_LEFT),
- click = ui_clicking(UI_MOUSE_LEFT) | clickup,
- target = ui_inside_rect( rect, vg_ui.mouse_click ) && click,
- hover = ui_inside_rect( rect, vg_ui.mouse );
-
- u32 col_base = vg_ui.scheme[ colour ],
- col_highlight = vg_ui.scheme[ hi_colour? hi_colour: k_ui_fg ],
- col_hover = vg_ui.scheme[ hover_colour? hover_colour:
- colour + k_ui_brighter ];
-
- if( vg_ui.focused_control_type != k_ui_control_none ){
- clickup = 0;
- click = 0;
- target = 0;
- hover = 0;
- }
-
- if( hover ){
- vg_ui.cursor = k_ui_cursor_hand;
- }
-
- if( click ){
- if( target ){
- if( hover ){
- if( clickup ){
- vg_ui.ignore_input_frames = 2;
- ui_defocus_all();
-
- if( fill ) {
- ui_fill( rect, col_highlight );
- rect_copy( rect, vg_ui.click_fader );
- rect_copy( rect, vg_ui.click_fader_end );
- vg_ui.click_fader_end[3] = 0;
- ui_rect_center( rect, vg_ui.click_fader_end );
- vg_ui.click_fade_opacity = 1.0f;
- }
-
- return k_ui_button_click;
- }
- else{
- if( fill ) ui_fill( rect, col_highlight );
- return k_ui_button_holding_inside;
- }
- }
- else{
- if( fill ) ui_fill( rect, col_base );
- ui_outline( rect, 1, col_highlight, 0 );
- return k_ui_button_holding_outside;
- }
- }
- else{
- if( fill ) ui_fill( rect, col_base );
- return k_ui_button_none;
- }
- }
- else{
- if( hover ){
- if( fill ) ui_fill( rect, col_hover );
- return k_ui_button_hover;
- }
- else{
- if( fill ) ui_fill( rect, col_base );
- return k_ui_button_none;
- }
- }
-}
+/* TODO: docu.. */
+
+void vg_ui_init(void);
+void rect_copy( ui_rect a, ui_rect b );
+void ui_flush( enum ui_shader shader, f32 w, f32 h );
+void ui_fill_rect( ui_rect rect, u32 colour, ui_px uv[4] );
+void ui_fill( ui_rect rect, u32 colour );
+void ui_outline( ui_rect rect, ui_px thickness, u32 colour, u32 mask );
+void ui_split( ui_rect rect, enum ui_axis other, ui_px width, ui_px gap,
+ ui_rect l, ui_rect r );
+void ui_rect_center( ui_rect parent, ui_rect rect );
+void ui_fit_item( ui_rect rect, ui_px size[2], ui_rect d );
+void ui_split_ratio( ui_rect rect, enum ui_axis dir, float ratio,
+ ui_px gap, ui_rect l, ui_rect r );
+void ui_rect_pad( ui_rect rect, ui_px pad[2] );
+ui_px ui_text_line_width( const char *str );
+ui_px ui_text_string_height( const char *str );
+ui_px ui_text_aligned_x( const char *str, ui_rect rect, ui_px scale,
+ enum ui_align align );
+int ui_clip( ui_rect parent, ui_rect child, ui_rect clipped );
+int ui_inside_rect( ui_rect rect, ui_px co[2] );
+int ui_click_down( u32 mask );
+int ui_clicking( u32 mask );
+int ui_click_up( u32 mask );
+void ui_prerender(void);
+u32 ui_colour( enum ui_scheme_colour id );
-static enum ui_button_state ui_colourbutton_text(
+/* get an appropriately contrasting colour given the base */
+u32 ui_colourcont( enum ui_scheme_colour id );
+
+void ui_hex_to_norm( u32 hex, v4f norm );
+u32 v4f_u32_colour( v4f colour );
+
+u32 ui_opacity( u32 colour, f32 opacity );
+u32 ui_ntext( ui_rect rect, const char *str, u32 len, ui_px scale,
+ enum ui_align align, u32 colour );
+void ui_text( ui_rect rect, const char *str, ui_px scale,
+ enum ui_align align, u32 colour );
+void ui_panel( ui_rect in_rect, ui_rect out_panel );
+void ui_label( ui_rect rect, const char *text, ui_px size,
+ ui_px gap, ui_rect r );
+void ui_standard_widget( ui_rect inout_panel, ui_rect out_rect, ui_px count );
+void ui_info( ui_rect inout_panel, const char *text );
+void ui_image( ui_rect rect, GLuint image );
+void ui_defocus_all(void);
+enum ui_button_state ui_colourbutton( ui_rect rect,
+ enum ui_scheme_colour colour,
+ enum ui_scheme_colour hover_colour,
+ enum ui_scheme_colour hi_colour,
+ bool const fill );
+enum ui_button_state ui_colourbutton_text(
ui_rect rect, const char *string, ui_px scale,
- enum ui_scheme_colour colour ){
- enum ui_button_state state = ui_colourbutton( rect, colour, 0, 0, 1 );
- ui_rect t = { 0,0, ui_text_line_width( string )*scale, 14*scale };
- ui_rect_center( rect, t );
-
- u32 text_colour = ui_colourcont(colour);
- if( state == k_ui_button_holding_inside )
- text_colour = colour;
-
- ui_text( t, string, scale, k_ui_align_left, text_colour );
- return state;
-}
-
-static enum ui_button_state ui_button_text( ui_rect rect,
- const char *string, ui_px scale ){
- return ui_colourbutton_text( rect, string, scale, k_ui_bg+4 );
-}
-
-static enum ui_button_state ui_button( ui_rect inout_panel,
- const char *string ){
- ui_rect rect;
- ui_standard_widget( inout_panel, rect, 1 );
- return ui_colourbutton_text( rect, string, 1, k_ui_bg+4 );
-}
-
-static void ui_enum_post(void);
-static void ui_postrender(void){
- if( vg_ui.click_fade_opacity > 0.0f ){
- float scale = vg_ui.click_fade_opacity;
- scale = vg_maxf( 1.0f/255.0f, scale*scale );
-
- vg_ui.click_fade_opacity -= vg.time_frame_delta * 3.8f;
- u32 colour = (0x00ffffff & ui_colour(k_ui_fg))|0x7f000000;
-
- v4f begin, end, dest;
- for( int i=0; i<4; i++ ){
- begin[i] = vg_ui.click_fader[i];
- end[i] = vg_ui.click_fader_end[i]+1;
- }
-
- v4_lerp( end, begin, scale, dest );
-
- ui_rect rect;
- for( int i=0; i<4; i++ ){
- rect[i] = dest[i];
- }
-
- ui_fill( rect, colour );
- }
-
- if( vg_ui.focused_control_type == k_ui_control_enum ){
- ui_enum_post();
- }
- else if( vg_ui.focused_control_type == k_ui_control_modal ){
- ui_rect screen = {0,0,vg.window_x,vg.window_y};
- ui_fill( screen, 0xa0000000 );
- ui_rect box = {0,0,400,200};
-
- u32 colour = ui_colour(k_ui_fg),
- type = vg_ui.modal.options & UI_MODAL_TYPE_BITS;
- if ( type == 1 ) colour = ui_colour(k_ui_green);
- else if( type == 2 ) colour = ui_colour(k_ui_red);
- else if( type == 3 ) colour = ui_colour(k_ui_yellow);
-
- ui_rect_center( screen, box );
- ui_fill( box, ui_colour(k_ui_bg) );
- ui_outline( box, -1, colour, 0 );
-
- ui_rect message;
- rect_copy( box, message );
- message[3] = 100;
- ui_rect_center( box, message );
-
- ui_rect row0, row1, btn;
- ui_split_ratio( message, k_ui_axis_h, 0.5f, 0, row0, row1 );
- row0[0] += vg_ui.font->spacing;
- ui_ntext( row0, vg_ui.modal.message, (box[2]/vg_ui.font->spacing)-2, 1,
- k_ui_align_left, colour );
-
- rect_copy( row1, btn );
- btn[2] = 86;
- btn[3] = 28;
- ui_rect_center( row1, btn );
-
- vg_ui.focused_control_type = k_ui_control_none; /* HACK */
- if( ui_button_text( btn, "OK", 1 ) != 1 )
- vg_ui.focused_control_hit = 1;
- vg_ui.focused_control_type = k_ui_control_modal; /* HACK */
- vg_ui.wants_mouse = 1;
- }
-
- ui_flush( k_ui_shader_colour, vg.window_x, vg.window_y );
-
- if( !vg_ui.focused_control_hit ){
- ui_defocus_all();
- }
-
- if( vg_ui.wants_mouse ){
- SDL_SetWindowGrab( vg.window, SDL_FALSE );
- SDL_SetRelativeMouseMode( SDL_FALSE );
- }
- else{
- SDL_SetWindowGrab( vg.window, SDL_TRUE );
- SDL_SetRelativeMouseMode( SDL_TRUE );
- }
-
- SDL_SetCursor( vg_ui.cursor_map[ vg_ui.cursor ] );
- SDL_ShowCursor(1);
-}
-
-/*
- * checkbox
- * -----------------------------------------------------------------------------
- */
-
-static int ui_checkbox( ui_rect inout_panel, const char *str_label, i32 *data ){
- ui_rect rect, label, box;
- ui_standard_widget( inout_panel, rect, 1 );
-
- ui_split( rect, k_ui_axis_v, -rect[3], 0, label, box );
- ui_text( label, str_label, k_ui_scale, k_ui_align_middle_left, 0 );
-
- int changed = ui_colourbutton( box, k_ui_bg, 0, 0, 1 )==1;
- if( changed )
- *data = (*data) ^ 0x1;
-
- if( *data ){
- ui_rect_pad( box, (ui_px[2]){4,4} );
- ui_fill( box, ui_colour( k_ui_orange ) );
- }
-
- return changed;
-}
-
-/*
- * Dropdown / Enum
- * -----------------------------------------------------------------------------
- */
-
-/*
- * unfortunately no return value since we only find out that event in the
- * postrender step.
- */
-static void ui_enum( ui_rect inout_panel, const char *str_label,
- struct ui_enum_opt *options, u32 len, i32 *value ){
- ui_rect rect, label, box;
- ui_standard_widget( inout_panel, rect, 1 );
- ui_label( rect, str_label, k_ui_scale, 0, box );
-
- const char *display = "OUT OF RANGE";
- int valid = 0;
- for( u32 i=0; i<len; i ++ ){
- if( *value == options[i].value ){
- display = options[i].alias;
- valid = 1;
- break;
- }
- }
-
- if( ui_button_text( box, display, k_ui_scale ) == 1 ){
- vg_ui.focused_control_type = k_ui_control_enum;
- vg_ui.ptr_enum = value;
- vg_ui._enum.option_count = len;
- vg_ui._enum.options = options;
- rect_copy( box, vg_ui._enum.rect );
- }
-
- if( !valid )
- ui_outline( box, 1, ui_colour(k_ui_red), 0 );
-}
-
-static void ui_enum_post(void){
- ui_rect drawer;
- rect_copy( vg_ui._enum.rect, drawer );
- drawer[3] *= vg_ui._enum.option_count;
-
- int close = 0;
- int clickany= ui_click_up(UI_MOUSE_LEFT|UI_MOUSE_RIGHT|UI_MOUSE_MIDDLE),
- hover = ui_inside_rect( drawer, vg_ui.mouse );
-
- if( clickany && !hover ){
- return;
- }
-
- /* HACK */
- vg_ui.focused_control_type = k_ui_control_none;
- i32 *value = vg_ui.ptr_enum;
-
- for( u32 i=0; i<vg_ui._enum.option_count; i++ ){
- ui_rect button;
- ui_split( drawer, k_ui_axis_h, vg_ui._enum.rect[3], 0, button,drawer );
-
- enum ui_scheme_colour colour = k_ui_bg+3;
- if( vg_ui._enum.options[i].value == *value )
- colour = k_ui_orange;
-
- if( ui_colourbutton_text( button, vg_ui._enum.options[i].alias,
- k_ui_scale, colour ) == 1 ){
- *value = vg_ui._enum.options[i].value;
- close = 1;
- }
- }
-
- /* HACK */
- vg_ui.focused_control_type = k_ui_control_enum;
-
- if( !close )
- vg_ui.focused_control_hit = 1;
-}
-
-/*
- * Slider
- * -----------------------------------------------------------------------------
- */
-
-static enum ui_button_state _ui_slider( ui_rect box,
- f32 min, f32 max, f32 *value, const char *format ){
- f32 t;
-
- enum ui_button_state
- mask_using =
- k_ui_button_holding_inside |
- k_ui_button_holding_outside |
- k_ui_button_click,
- mask_brighter =
- mask_using | k_ui_button_hover,
- state = ui_colourbutton( box, k_ui_bg, k_ui_bg+2, k_ui_bg+3, 1 );
-
- if( state & mask_using ){
- t = vg_clampf( (f32)(vg_ui.mouse[0] - box[0]) / (f32)( box[2] ),
- 0.0f, 1.0f );
- *value = vg_lerpf( min, max, t );
- }
- else
- t = vg_clampf( (*value - min) / (max-min), 0.0f, 1.0f );
-
- ui_rect line = { box[0], box[1], t * (f32)box[2], box[3] };
- ui_fill( line, ui_colour(state&mask_brighter? k_ui_bg+4: k_ui_bg+2) );
-
- ui_outline( box, 1, ui_colour(state? k_ui_fg+3: k_ui_bg+3), 0 );
-
- /* TODO: replace this one day with our own function */
- char buf[32];
- snprintf( buf, sizeof(buf), format? format: "%.2f", *value );
- ui_text( box, buf, 1, k_ui_align_middle_center, 0 );
-
- return state;
-}
-
-static void ui_slider( ui_rect inout_panel, const char *str_label,
- f32 min, f32 max, f32 *value, const char *format ){
- ui_rect rect, label, box;
- ui_standard_widget( inout_panel, rect, 1 );
- ui_label( rect, str_label, k_ui_scale, 0, box );
- _ui_slider( box, min, max, value, format );
-}
-
-/*
- * Colour picker
- * -----------------------------------------------------------------------------
- */
-
-static void ui_colourpicker( ui_rect inout_panel, const char *str_label,
- v4f value ){
- ui_rect widget, left, right;
- ui_standard_widget( inout_panel, widget, 8 );
- ui_split_ratio( widget, k_ui_axis_v, 0.5f, 8, left, right );
-
- ui_rect sliders[4];
- ui_split_ratio( right, k_ui_axis_h, 0.5f, 2, sliders[0], sliders[2] );
- ui_split_ratio( sliders[0], k_ui_axis_h, 0.5f, 2, sliders[0], sliders[1] );
- ui_split_ratio( sliders[2], k_ui_axis_h, 0.5f, 2, sliders[2], sliders[3] );
-
- v4f hsv;
- vg_rgb_hsv( value, hsv );
- hsv[3] = value[3];
-
- enum ui_button_state modified = 0x00;
-
- for( u32 i=0; i<4; i ++ ){
- modified |= _ui_slider( sliders[i], 0.0f, 1.0f, hsv+i,
- (const char *[]){ "hue %.2f",
- "sat %.2f",
- "lum %.2f",
- "alpha %.2f" }[i] );
- }
-
- ui_rect preview, square;
- ui_split_ratio( left, k_ui_axis_v, 0.8f, 8, square, preview );
-
- u32 state = ui_colourbutton( square, 0, 0, 0, 0 );
- modified |= state;
-
- enum ui_button_state
- mask_using =
- k_ui_button_holding_inside |
- k_ui_button_holding_outside |
- k_ui_button_click;
-
- if( state & mask_using ){
- for( u32 i=0; i<2; i ++ ){
- hsv[1+i] = vg_clampf(
- (f32)(vg_ui.mouse[i] - square[i]) / (f32)(square[2+i]),
- 0.0f, 1.0f );
- }
-
- hsv[2] = 1.0f-hsv[2];
- }
-
- if( modified & (k_ui_button_click|k_ui_button_holding_inside|
- k_ui_button_holding_outside) ){
- vg_hsv_rgb( hsv, value );
- value[3] = hsv[3];
- }
-
- ui_outline( square, 1, ui_colour( state? k_ui_fg+3: k_ui_bg+3 ), 0 );
-
- /* preview colour */
- v4f colour;
- vg_hsv_rgb( hsv, colour );
- colour[3] = 1.0f;
- ui_fill( preview, v4f_u32_colour( colour ) );
-
- /* Draw hsv shader thingy */
- ui_flush( k_ui_shader_colour, vg.window_x, vg.window_y );
- ui_fill_rect( square, 0xffffffff, (ui_px[4]){ 0,256,256,0 } );
- vg_ui.hue = hsv[0];
- ui_flush( k_ui_shader_hsv, vg.window_x, vg.window_y );
-
- ui_rect marker = { square[0] + hsv[1] * (f32)square[2] - 4,
- square[1] + (1.0f-hsv[2]) * (f32)square[3] - 4,
- 8, 8 },
- lx = { square[0],
- square[1] + (1.0f-hsv[2]) * (f32)square[3],
- square[2], 1 },
- ly = { square[0] + hsv[1] * (f32)square[2],
- square[1],
- 1, square[3] };
-
- ui_fill( marker, ui_colour( k_ui_fg ) );
- ui_fill( lx, ui_colour( k_ui_fg ) );
- ui_fill( ly, ui_colour( k_ui_fg ) );
-}
-
-/*
- * Textbox chaos
- * -----------------------------------------------------------------------------
- */
-
-static void _ui_textbox_make_selection( int *start, int *end ){
- *start = VG_MIN( vg_ui.textbox.cursor_pos, vg_ui.textbox.cursor_user );
- *end = VG_MAX( vg_ui.textbox.cursor_pos, vg_ui.textbox.cursor_user );
-}
-
-static void _ui_textbox_move_cursor( int *cursor0, int *cursor1,
- int dir, int snap_together ){
- *cursor0 = VG_MAX( 0, vg_ui.textbox.cursor_user + dir );
- *cursor0 =
- VG_MIN(
- VG_MIN( vg_ui.textbox.len-1, strlen( vg_ui.textbuf )),
- *cursor0 );
-
- if( snap_together )
- *cursor1 = *cursor0;
-}
-
-static int _ui_textbox_makeroom( int datastart, int length ){
- int move_to = VG_MIN( datastart+length, vg_ui.textbox.len-1 );
- int move_amount = strlen( vg_ui.textbuf )-datastart;
- int move_end = VG_MIN( move_to+move_amount, vg_ui.textbox.len-1 );
- move_amount = move_end-move_to;
-
- if( move_amount )
- memmove( &vg_ui.textbuf[ move_to ],
- &vg_ui.textbuf[ datastart ],
- move_end-move_to );
-
- vg_ui.textbuf[ move_end ] = '\0';
-
- return VG_MIN( length, vg_ui.textbox.len-datastart-1 );
-}
-
-static int _ui_textbox_delete_char( int direction ){
- int start, end;
- _ui_textbox_make_selection( &start, &end );
-
- /* There is no selection */
- if( !(end-start) ){
- if( direction == 1 ) end = VG_MIN( end+1, strlen( vg_ui.textbuf ) );
- else if( direction == -1 ) start = VG_MAX( start-1, 0 );
- }
-
- /* Still no selction, no need to do anything */
- if( !(end-start) )
- return start;
-
- /* Copy the end->terminator to start */
- int remaining_length = strlen( vg_ui.textbuf )+1-end;
- memmove( &vg_ui.textbuf[ start ],
- &vg_ui.textbuf[ end ],
- remaining_length );
- return start;
-}
-
-static void _ui_textbox_to_clipboard(void){
- int start, end;
- _ui_textbox_make_selection( &start, &end );
- char buffer[512];
-
- if( end-start ){
- memcpy( buffer, &vg_ui.textbuf[ start ], end-start );
- buffer[ end-start ] = 0x00;
- SDL_SetClipboardText( buffer );
- }
-}
-
-static void _ui_textbox_change_callback(void){
- if( vg_ui.textbox.callbacks.change ){
- vg_ui.textbox.callbacks.change( vg_ui.textbuf, vg_ui.textbox.len );
-
- /* we gave permission to modify the buffer in this callback so.. */
- int len = strlen( vg_ui.textbuf );
- vg_ui.textbox.cursor_user = VG_MIN( vg_ui.textbox.cursor_user, len );
- vg_ui.textbox.cursor_pos = VG_MIN( vg_ui.textbox.cursor_pos, len );
- }
-}
-
-static void ui_start_modal( const char *message, u32 options );
-static void _ui_textbox_clipboard_paste(void){
- if( !SDL_HasClipboardText() )
- return;
-
- char *text = SDL_GetClipboardText();
-
- if( !text )
- return;
-
- int datastart = _ui_textbox_delete_char( 0 );
- int length = strlen( text );
-
- if( (vg_ui.textbox.len - strlen(vg_ui.textbuf)) < length ){
- ui_start_modal( "Clipboard content exceeds buffer size.", UI_MODAL_BAD );
- return;
- }
-
- int cpylength = _ui_textbox_makeroom( datastart, length );
-
- memcpy( vg_ui.textbuf + datastart, text, cpylength);
- _ui_textbox_move_cursor( &vg_ui.textbox.cursor_user,
- &vg_ui.textbox.cursor_pos, cpylength, 1 );
- SDL_free( text );
- _ui_textbox_change_callback();
-}
-
-static void _ui_textbox_put_char( char c ){
- vg_ui.textbox.cursor_user = _ui_textbox_delete_char(0);
- if( (vg_ui.textbox.len - strlen(vg_ui.textbuf)) <= 1 ) return;
-
- if( _ui_textbox_makeroom( vg_ui.textbox.cursor_user, 1 ) )
- vg_ui.textbuf[ vg_ui.textbox.cursor_user ] = c;
-
- _ui_textbox_move_cursor( &vg_ui.textbox.cursor_user,
- &vg_ui.textbox.cursor_pos, 1, 1 );
-}
-
-/* Receed secondary cursor */
-static void _ui_textbox_left_select(void){
- _ui_textbox_move_cursor( &vg_ui.textbox.cursor_user, NULL, -1, 0 );
-}
-
-/* Match and receed both cursors */
-static void _ui_textbox_left(void){
- int cursor_diff = vg_ui.textbox.cursor_pos - vg_ui.textbox.cursor_user? 0: 1;
-
- _ui_textbox_move_cursor( &vg_ui.textbox.cursor_user,
- &vg_ui.textbox.cursor_pos, -cursor_diff, 1 );
-}
-
-static void _ui_textbox_up(void){
- if( vg_ui.textbox.flags & UI_TEXTBOX_MULTILINE ){
- int line_begin = vg_ui.textbox.cursor_user;
-
- while( line_begin ){
- if( vg_ui.textbuf[ line_begin-1 ] == '\n' ){
- break;
- }
-
- line_begin --;
- }
-
- if( line_begin ){
- int line_above_begin = line_begin-1;
-
- while( line_above_begin ){
- if( vg_ui.textbuf[ line_above_begin-1 ] == '\n' ){
- break;
- }
-
- line_above_begin --;
- }
-
- int offset = vg_ui.textbox.cursor_user - line_begin,
- line_length_above = line_begin - line_above_begin -1;
-
- offset = VG_MIN( line_length_above, offset );
-
- vg_ui.textbox.cursor_user = line_above_begin+offset;
- vg_ui.textbox.cursor_pos = line_above_begin+offset;
- }
- else{
- vg_ui.textbox.cursor_user = line_begin;
- vg_ui.textbox.cursor_pos = line_begin;
- }
- }
- else{
- if( vg_ui.textbox.callbacks.up ){
- vg_ui.textbox.callbacks.up( vg_ui.textbuf, vg_ui.textbox.len );
- }
- }
-}
-
-static void _ui_textbox_down(void){
- if( vg_ui.textbox.flags & UI_TEXTBOX_MULTILINE ){
- int line_begin = vg_ui.textbox.cursor_user;
-
- while( line_begin ){
- if( vg_ui.textbuf[ line_begin-1 ] == '\n' ){
- break;
- }
-
- line_begin --;
- }
-
- int line_below_begin = vg_ui.textbox.cursor_user;
-
- while(1){
- if( vg_ui.textbuf[ line_below_begin ] == '\0' ){
- vg_ui.textbox.cursor_user = line_below_begin;
- vg_ui.textbox.cursor_pos = line_below_begin;
- return;
- }
-
- if( vg_ui.textbuf[ line_below_begin ] == '\n' ){
- line_below_begin ++;
- break;
- }
-
- line_below_begin ++;
- }
-
- int line_below_end = line_below_begin;
- while(1){
- if( vg_ui.textbuf[ line_below_end ] == '\0' ||
- vg_ui.textbuf[ line_below_end ] == '\n' ){
- line_below_end ++;
- break;
- }
- line_below_end ++;
- }
-
- int offset = vg_ui.textbox.cursor_user - line_begin,
- line_length_below = line_below_end - line_below_begin -1;
-
- offset = VG_MIN( line_length_below, offset );
-
- vg_ui.textbox.cursor_user = line_below_begin+offset;
- vg_ui.textbox.cursor_pos = line_below_begin+offset;
- }
- else{
- if( vg_ui.textbox.callbacks.down ){
- vg_ui.textbox.callbacks.down( vg_ui.textbuf, vg_ui.textbox.len );
- }
- }
-}
-
-static void _ui_textbox_right_select(void){
- _ui_textbox_move_cursor( &vg_ui.textbox.cursor_user, NULL, 1, 0 );
-}
-
-static void _ui_textbox_right(void){
- int cursor_diff = vg_ui.textbox.cursor_pos - vg_ui.textbox.cursor_user? 0: 1;
-
- _ui_textbox_move_cursor( &vg_ui.textbox.cursor_user,
- &vg_ui.textbox.cursor_pos, +cursor_diff, 1 );
-}
-
-static void _ui_textbox_backspace(void){
- if( vg_ui.focused_control_type == k_ui_control_textbox ){
- vg_ui.textbox.cursor_user = _ui_textbox_delete_char( -1 );
- vg_ui.textbox.cursor_pos = vg_ui.textbox.cursor_user;
- _ui_textbox_change_callback();
- }
-}
-
-static void _ui_textbox_delete(void){
- if( vg_ui.focused_control_type == k_ui_control_textbox ){
- vg_ui.textbox.cursor_user = _ui_textbox_delete_char( 1 );
- vg_ui.textbox.cursor_pos = vg_ui.textbox.cursor_user;
- _ui_textbox_change_callback();
- }
-}
-
-static void _ui_textbox_home_select(void){
- i32 start = vg_ui.textbox.cursor_user;
-
- if( vg_ui.textbox.flags & UI_TEXTBOX_MULTILINE ){
- while( start ){
- if( vg_ui.textbuf[start-1] == '\n' )
- break;
- else
- start --;
- }
- }
- else
- start = 0;
-
- vg_ui.textbox.cursor_user = start;
-}
-
-static void _ui_textbox_home(void){
- _ui_textbox_home_select();
- vg_ui.textbox.cursor_pos = vg_ui.textbox.cursor_user;
-}
-
-static void _ui_textbox_end_select(void){
- i32 end = vg_ui.textbox.cursor_user;
-
- if( vg_ui.textbox.flags & UI_TEXTBOX_MULTILINE ){
- while( vg_ui.textbuf[end] ){
- if( vg_ui.textbuf[end] == '\n' )
- break;
- else
- end ++;
- }
- }
- else
- end = VG_MIN( vg_ui.textbox.len-1, strlen(vg_ui.textbuf) );
-
- vg_ui.textbox.cursor_user = end;
-}
-
-static void _ui_textbox_end(void){
- _ui_textbox_end_select();
- vg_ui.textbox.cursor_pos = vg_ui.textbox.cursor_user;
-}
-
-static void _ui_textbox_select_all(void){
- _ui_textbox_move_cursor( &vg_ui.textbox.cursor_user, NULL, 10000, 0);
- _ui_textbox_move_cursor( &vg_ui.textbox.cursor_pos, NULL, -10000, 0);
-}
-
-static void _ui_textbox_cut(void){
- _ui_textbox_to_clipboard();
- vg_ui.textbox.cursor_user = _ui_textbox_delete_char(0);
- vg_ui.textbox.cursor_pos = vg_ui.textbox.cursor_user;
- _ui_textbox_change_callback();
-}
-
-static void _ui_textbox_enter(void){
- if( vg_ui.focused_control_type == k_ui_control_textbox ){
- vg_ui.ignore_input_frames = 2;
-
- if( vg_ui.textbox.callbacks.enter )
- vg_ui.textbox.callbacks.enter( vg_ui.textbuf, vg_ui.textbox.len );
-
- if( vg_ui.focused_control_type != k_ui_control_textbox ) return;
-
- if( vg_ui.textbox.flags & UI_TEXTBOX_MULTILINE ){
- _ui_textbox_put_char( '\n' );
- _ui_textbox_change_callback();
- }
- else{
- if( !(vg_ui.textbox.flags & UI_TEXTBOX_AUTOFOCUS ) )
- ui_defocus_all();
- }
- }
-}
-
-/*
- * based on a visual character coordinate relative to the anchor of the textbox,
- * this works out the linear place in the buffer that coordinate maps to
- *
- * input coordinates go in co[0], co[1], and the result index is in co[2]
- */
-static void _ui_textbox_calc_index_from_grid( int co[3], int wrap_length ){
- int i[3] = {0,0,0};
-
- char c;
- while( (c = vg_ui.textbuf[i[2]]) ){
- if( i[1]==co[1] && i[0]>=co[0] ) break;
-
- if( i[0] >= wrap_length ){
- i[1] ++;
- i[0] = 0;
- }
-
- if( c >= 32 && c <= 126 ){
- i[0] ++;
- i[2] ++;
- }
- else if( c == '\n' ){
- i[1] ++;
-
- if( i[1] > co[1] ) break;
-
- i[2] ++;
- i[0] = 0;
- }
- else i[2] ++;
- }
-
- co[0] = i[0];
- co[1] = i[1];
- co[2] = i[2];
-}
-
-/*
- * based on the index specied in co[2], work out the visual character
- * coordinates and store them in co[0], co[1]
- */
-static void _ui_textbox_index_calc_coords( int co[3], int wrap_length ){
- co[0] = 0;
- co[1] = 0;
-
- char c;
- int i=0;
-
- while( (c = vg_ui.textbuf[i ++]) ){
- if( i > co[2] ) break;
- if( co[0] >= wrap_length ){
- co[1] ++;
- co[0] = 0;
- }
- if( c >= 32 && c <= 126 ) co[0] ++;
- else if( c == '\n' ){
- co[1] ++;
- co[0] = 0;
- }
- }
-}
-
-/*
- * calculate the number of characters remaining until either:
- * - the wrap_length limit is hit
- * - end of the line/string
- *
- * index must be fully populated with visual X/Y, and linear index
- */
-static int _ui_textbox_run_remaining( int index[3], int wrap_length ){
- int i=0, printed_chars=0;
- char c;
- while( (c = vg_ui.textbuf[index[2] + (i ++)]) ){
- if( index[0]+i >= wrap_length ) break;
- if( c >= 32 && c <= 126 ) printed_chars ++;
- else if( c == '\n' ) break;
- }
-
- return printed_chars+1;
-}
-
-static int ui_textbox( ui_rect inout_panel, const char *label,
- char *buf, u32 len, u32 lines, u32 flags,
- struct ui_textbox_callbacks *callbacks ){
- assert( lines > 0 );
- assert( buf );
-
- if( lines > 1 ) flags |= UI_TEXTBOX_MULTILINE;
-
- ui_rect rect;
- ui_standard_widget( inout_panel, rect, lines );
-
- if( label )
- ui_label( rect, label, 1, 0, rect );
-
- int clickup= ui_click_up(UI_MOUSE_LEFT),
- clickdown = ui_click_down(UI_MOUSE_LEFT),
- click = ui_clicking(UI_MOUSE_LEFT) | clickup,
- target = ui_inside_rect( rect, vg_ui.mouse_click ) && click,
- hover = ui_inside_rect( rect, vg_ui.mouse );
-
- /* allow instant transitions from textbox->textbox */
- if( (vg_ui.focused_control_type != k_ui_control_none) &&
- (vg_ui.focused_control_type != k_ui_control_textbox) ){
- clickup = 0;
- clickdown = 0;
- click = 0;
- target = 0;
- hover = 0;
- flags &= ~UI_TEXTBOX_AUTOFOCUS;
- }
-
- u32 col_base = ui_colour( k_ui_bg ),
- col_highlight = ui_colour( k_ui_fg ),
- col_cursor = (0x00ffffff & ui_colour(k_ui_fg))|0x7f000000;
-
- ui_px border = -1;
-
- ui_rect text_rect;
- rect_copy( rect, text_rect );
-
- if( flags & UI_TEXTBOX_MULTILINE ) text_rect[3] = rect[3]-16;
- else text_rect[3] = vg_ui.font->line_height;
-
- text_rect[2] -= 16;
- ui_rect_center( rect, text_rect );
-
- ui_px wrap_length = 1024;
-
- if( flags & UI_TEXTBOX_WRAP )
- wrap_length = text_rect[2] / vg_ui.font->spacing;
-
- if( hover ){
- vg_ui.cursor = k_ui_cursor_ibeam;
- }
-
- if( vg_ui.focused_control_id == buf ){
- ui_fill( rect, col_base );
- ui_ntext( text_rect, buf, wrap_length, 1, k_ui_align_left, 0 );
-
- if( !(flags & UI_TEXTBOX_AUTOFOCUS) && ((clickup||clickdown) && !target)){
- ui_defocus_all();
- }
- else{
- vg_ui.focused_control_hit = 1;
- if( click && target ){
- int p0[3] ={
- (vg_ui.mouse_click[0] - text_rect[0]) / vg_ui.font->spacing,
- (vg_ui.mouse_click[1] - text_rect[1]) / vg_ui.font->line_height,
- -1
- },
- p1[3] = {
- (vg_ui.mouse[0] - text_rect[0]) / vg_ui.font->spacing,
- (vg_ui.mouse[1] - text_rect[1]) / vg_ui.font->line_height,
- -1
- };
-
- if( flags & UI_TEXTBOX_MULTILINE ){
- _ui_textbox_calc_index_from_grid( p0, wrap_length );
- _ui_textbox_calc_index_from_grid( p1, wrap_length );
-
- vg_ui.textbox.cursor_pos = p0[2];
- vg_ui.textbox.cursor_user = p1[2];
- }
- else{
- int max = strlen( buf );
- vg_ui.textbox.cursor_pos = VG_MAX( 0, VG_MIN( max, p0[0] )),
- vg_ui.textbox.cursor_user = VG_MAX( 0, VG_MIN( max, p1[0] ));
- }
- }
-
- ui_outline( rect, -2, vg_ui.scheme[ k_ui_orange ], 0 );
-
- ui_rect cursor;
-
- int c0 = vg_ui.textbox.cursor_pos,
- c1 = vg_ui.textbox.cursor_user,
- start = VG_MIN( c0, c1 ),
- end = VG_MAX( c0, c1 ),
- chars = end-start;
-
- if( flags & (UI_TEXTBOX_WRAP|UI_TEXTBOX_MULTILINE) ){
- int pos[3], remaining = chars;
-
- pos[2] = start;
- _ui_textbox_index_calc_coords( pos, wrap_length );
-
- if( start==end ){
- cursor[0] = text_rect[0] + pos[0]*vg_ui.font->spacing-1;
- cursor[1] = text_rect[1] + pos[1]*14;
- cursor[2] = 2;
- cursor[3] = 13;
- ui_fill( cursor, col_cursor );
- rect_copy( cursor, vg_ui.click_fader_end );
- }
- else{
- while( remaining ){
- int run = _ui_textbox_run_remaining( pos, wrap_length );
- run = VG_MIN( run, remaining );
-
- cursor[0] = text_rect[0] + pos[0]*vg_ui.font->spacing-1;
- cursor[1] = text_rect[1] + pos[1]*14;
- cursor[2] = (float)(run)*(float)vg_ui.font->spacing;
- cursor[3] = 13;
-
- ui_fill( cursor, col_cursor );
-
- remaining -= run;
- pos[0] = 0;
- pos[1] ++;
- pos[2] += run;
- }
- rect_copy( cursor, vg_ui.click_fader_end );
- }
- }
- else{
- cursor[0] = text_rect[0] + start*vg_ui.font->spacing-1;
- cursor[1] = text_rect[1];
- cursor[3] = 13;
-
- if( start==end ){
- cursor[2] = 2;
- }
- else{
- cursor[2] = (float)(chars)*(float)vg_ui.font->spacing;
- }
-
- if( (vg_ui.click_fade_opacity<=0.0f) &&
- ui_clip( rect, cursor, cursor ) ){
- ui_fill( cursor, col_cursor );
- }
-
- rect_copy( cursor, vg_ui.click_fader_end );
- }
- }
-
- return 0;
- }
-
- if( click || (flags & UI_TEXTBOX_AUTOFOCUS) ){
- if( (target && hover) || (flags & UI_TEXTBOX_AUTOFOCUS) ){
- ui_defocus_all();
-
- ui_fill( rect, col_highlight );
- vg_ui.ignore_input_frames = 2;
- rect_copy( rect, vg_ui.click_fader );
- rect_copy( rect, vg_ui.click_fader_end );
-
- vg_ui.click_fade_opacity = 1.0f;
- vg_ui.textbuf = buf;
- vg_ui.focused_control_hit = 1;
- vg_ui.focused_control_type = k_ui_control_textbox;
- vg_ui.textbox.len = len;
- vg_ui.textbox.flags = flags;
- vg_ui.textbox.cursor_pos = 0;
- vg_ui.textbox.cursor_user = 0;
-
- if( callbacks ){
- vg_ui.textbox.callbacks = *callbacks;
- }
- else{
- vg_ui.textbox.callbacks.change = NULL;
- vg_ui.textbox.callbacks.down = NULL;
- vg_ui.textbox.callbacks.up = NULL;
- vg_ui.textbox.callbacks.enter = NULL;
- }
-
- SDL_StartTextInput();
- }
- }
-
- ui_fill( rect, col_base );
-
- if( hover ){
- ui_outline( rect, -1, col_highlight, 0 );
- }
-
- ui_ntext( text_rect, buf, wrap_length, 1, k_ui_align_left, 0 );
- return 0;
-}
-
-/*
- * Tabs
- * -----------------------------------------------------------------------------
- */
-
-static void ui_tabs( ui_rect inout_panel, ui_rect out_content_panel,
- const char **titles, u32 count, i32 *page ){
- ui_rect bar;
- ui_standard_widget( inout_panel, bar, 1 );
-
- i32 cur_page = *page;
-
- f32 width = (f32)inout_panel[2] / (f32)count;
-
- ui_px h = (inout_panel[1] + inout_panel[3]) - (bar[1]+bar[3]);
- inout_panel[1] = bar[1]+bar[3];
- inout_panel[3] = h;
-
- ui_fill( inout_panel, ui_colour( k_ui_bg+2 ) );
- ui_outline( inout_panel, 1, ui_colour( k_ui_bg+5 ), 0 );
-
- rect_copy( inout_panel, out_content_panel );
- ui_rect_pad( out_content_panel, (ui_px[2]){ k_ui_padding, k_ui_padding } );
-
- /* place buttons */
- for( i32 i=0; i<count; i++ ){
- ui_rect button = {
- bar[0] + ((f32)i*width),
- bar[1],
- width,
- bar[3]-1
- };
-
- enum ui_scheme_colour colour = k_ui_bg+4;
- if( i == cur_page ){
- colour = k_ui_bg+2;
- ui_outline( button, 1, ui_colour( k_ui_bg+5 ),
- UI_TOP|UI_LEFT|UI_RIGHT );
- button[3] ++;
- }
-
- if( ui_colourbutton_text( button, titles[i], 1, colour ) == 1 )
- *page = i;
- }
-}
-
-/*
- * Modal UI
- * -----------------------------------------------------------------------------
- */
-static void ui_start_modal( const char *message, u32 options ){
- vg_ui.focused_control_type = k_ui_control_modal;
- vg_ui.modal.message = message;
- vg_ui.modal.callbacks.close = NULL;
- vg_ui.modal.options = options;
-
- u32 type = options & UI_MODAL_TYPE_BITS;
- if( type == UI_MODAL_OK ) vg_info( message );
- else if( type == UI_MODAL_WARN ) vg_warn( message );
- else if( type == UI_MODAL_GOOD ) vg_success( message );
- else if( type == UI_MODAL_BAD ) vg_error( message );
-}
-
-/*
- * Input handling
- * -----------------------------------------------------------------------------
- */
-
-/*
- * Handles binds
- */
-static void _ui_proc_key( SDL_Keysym ev ){
- if( vg_ui.focused_control_type != k_ui_control_textbox ){
- return;
- }
-
- struct textbox_mapping{
- u16 mod;
- SDL_Keycode key;
-
- void (*handler)(void);
- }
- mappings[] =
- {
- { 0, SDLK_LEFT, _ui_textbox_left },
- { KMOD_SHIFT, SDLK_LEFT, _ui_textbox_left_select },
- { 0, SDLK_RIGHT, _ui_textbox_right },
- { KMOD_SHIFT, SDLK_RIGHT, _ui_textbox_right_select },
- { 0, SDLK_DOWN, _ui_textbox_down },
- { 0, SDLK_UP, _ui_textbox_up },
- { 0, SDLK_BACKSPACE, _ui_textbox_backspace },
- { KMOD_SHIFT, SDLK_BACKSPACE, _ui_textbox_backspace },
- { KMOD_CTRL, SDLK_BACKSPACE, _ui_textbox_backspace },
- { 0, SDLK_DELETE, _ui_textbox_delete },
- { 0, SDLK_HOME, _ui_textbox_home },
- { KMOD_SHIFT, SDLK_HOME, _ui_textbox_home_select },
- { 0, SDLK_END, _ui_textbox_end },
- { KMOD_SHIFT, SDLK_END, _ui_textbox_end_select },
- { KMOD_CTRL, SDLK_a, _ui_textbox_select_all },
- { KMOD_CTRL, SDLK_c, _ui_textbox_to_clipboard },
- { KMOD_CTRL, SDLK_x, _ui_textbox_cut },
- { KMOD_CTRL, SDLK_v, _ui_textbox_clipboard_paste },
- { 0, SDLK_RETURN, _ui_textbox_enter },
- { 0, SDLK_ESCAPE, ui_defocus_all },
- };
-
- SDL_Keymod mod = 0;
-
- if( ev.mod & KMOD_SHIFT )
- mod |= KMOD_SHIFT;
-
- if( ev.mod & KMOD_CTRL )
- mod |= KMOD_CTRL;
-
- if( ev.mod & KMOD_ALT )
- mod |= KMOD_ALT;
-
- for( int i=0; i<vg_list_size( mappings ); i++ ){
- struct textbox_mapping *mapping = &mappings[i];
-
- if( mapping->key == ev.sym ){
- if( mapping->mod == 0 ){
- if( mod == 0 ){
- mapping->handler();
- return;
- }
- }
- else if( (mod & mapping->mod) == mapping->mod ){
- mapping->handler();
- return;
- }
- }
- }
-}
-
-/*
- * Callback for text entry mode
- */
-static void ui_proc_utf8( const char *text ){
- if( vg_ui.focused_control_type == k_ui_control_textbox ){
- const char *ptr = text;
-
- while( *ptr ){
- if( *ptr != '`' ) _ui_textbox_put_char( *ptr );
- ptr ++;
- }
-
- _ui_textbox_change_callback();
- }
-}
-
-/*
- * Development utils
- * -----------------------------------------------------------------------------
- */
-
-static void ui_dev_colourview(void){
- ui_rect window = {vg.window_x-256,0,256,vg.window_y}, swatch;
-
- const char *names[vg_list_size(vg_ui.scheme)] = {
- [k_ui_bg] = "k_ui_bg", "k_ui_bg+1", "k_ui_bg+2", "k_ui_bg+3",
- "k_ui_bg+4", "k_ui_bg+5", "k_ui_bg+6", "k_ui_bg+7",
-
- [k_ui_fg] = "k_ui_fg", "k_ui_fg+1", "k_ui_fg+2", "k_ui_fg+3",
- "k_ui_fg+4", "k_ui_fg+5", "k_ui_fg+6", "k_ui_fg+7",
-
- [k_ui_red] = "k_ui_red", "k_ui_orange", "k_ui_yellow", "k_ui_green",
- "k_ui_aqua", "k_ui_blue", "k_ui_purple", "k_ui_gray",
- "k_ui_red+8","k_ui_orange+8","k_ui_yellow+8","k_ui_green+8",
- "k_ui_aqua+8","k_ui_blue+8","k_ui_purple+8","k_ui_gray+8" };
-
- ui_rect col[2];
- ui_split_ratio( window, k_ui_axis_v, 0.5f, 0, col[0], col[1] );
-
- for( int i=0; i<vg_list_size(vg_ui.scheme); i++ ){
- int which = (i/8)%2;
-
- ui_split( col[which], k_ui_axis_h, 24, 0, swatch, col[which] );
- ui_fill( swatch, ui_colour(i) );
-
- if( names[i] )
- ui_text(swatch, names[i], 1, k_ui_align_middle_left, ui_colourcont(i));
- }
-}
-
-#endif /* VG_IMGUI_H */
+ enum ui_scheme_colour colour );
+enum ui_button_state ui_button_text( ui_rect rect,
+ const char *string, ui_px scale );
+enum ui_button_state ui_button( ui_rect inout_panel, const char *string );
+void ui_postrender(void);
+
+int ui_checkbox( ui_rect inout_panel, const char *str_label, i32 *data );
+void ui_enum( ui_rect inout_panel, const char *str_label,
+ struct ui_enum_opt *options, u32 len, i32 *value );
+void ui_slider( ui_rect inout_panel, const char *str_label,
+ f32 min, f32 max, f32 *value, const char *format );
+void ui_colourpicker( ui_rect inout_panel, const char *str_label, v4f value );
+int ui_textbox( ui_rect inout_panel, const char *label,
+ char *buf, u32 len, u32 lines, u32 flags,
+ struct ui_textbox_callbacks *callbacks );
+void ui_tabs( ui_rect inout_panel, ui_rect out_content_panel,
+ const char **titles, u32 count, i32 *page );
+void ui_start_modal( const char *message, u32 options );
+void ui_proc_key( SDL_Keysym ev );
+void ui_proc_utf8( const char *text );
+void ui_dev_colourview(void);
+
+void _ui_textbox_move_cursor( int *cursor0, int *cursor1,
+ int dir, int snap_together );
+int _ui_textbox_delete_char( int direction );
+void _ui_textbox_put_char( char c );
+void _ui_textbox_up(void);
+void _ui_textbox_left(void);
+void _ui_textbox_left_select(void);
+void _ui_textbox_down(void);
+void _ui_textbox_right_select(void);
+void _ui_textbox_right(void);
+void _ui_textbox_backspace(void);
+void _ui_textbox_delete(void);
+void _ui_textbox_home_select(void);
+void _ui_textbox_home(void);
+void _ui_textbox_end_select(void);
+void _ui_textbox_end(void);
+void _ui_textbox_select_all(void);
+void _ui_textbox_cut(void);
+void _ui_textbox_enter(void);
projects / vg.git / blobdiff