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annotate infinite_canvas/canvas.h @ 279:b3b547563ec7

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Add Google connector service and agent wiki Implement the C/Seobeo Google Drive and Gmail connector with encrypted OAuth storage, Zenbu authentication, browser testing, AI tool discovery, chunked HTTP decoding, and Bazel coverage. Consolidate repository guidance into progressive wiki documentation and enforce arena-first allocation for new first-party C code. Co-authored-by: Copilot <[email protected]> Copilot-Session: 84c338fd-0939-4bb3-b7f3-1062eb213e5d
author MrJuneJune <me@mrjunejune.com>
date Mon, 17 Aug 2026 22:22:36 -0700
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1 #ifndef INFINITE_CANVAS_CANVAS_H
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2 #define INFINITE_CANVAS_CANVAS_H
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3
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4 #include "dowa/dowa.h"
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5 #include "infinite_canvas/theme.h"
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6 #include "third_party/raylib/include/raylib.h"
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7
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8 #define CANVAS_MAX_ENTITIES 1024
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9 #define CANVAS_WEB_FRAME_INSET 8.0f
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10 #define CANVAS_WEB_TOOLBAR_HEIGHT 42.0f
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11 #define CANVAS_WEB_RESIZE_HANDLE 18.0f
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12 #define CANVAS_WEB_MIN_WIDTH 160.0f
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13 #define CANVAS_WEB_MIN_HEIGHT 120.0f
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14 #define CANVAS_CONTEXT_MAX_LENGTH (64 * 1024)
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15 #define CANVAS_ENTITY_TEXT_CAPACITY 2048
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16
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17 typedef enum {
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18 CANVAS_ENTITY_RECTANGLE = 0,
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19 CANVAS_ENTITY_CIRCLE,
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20 CANVAS_ENTITY_LINE,
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21 CANVAS_ENTITY_TEXT,
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22 CANVAS_ENTITY_BUTTON,
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23 CANVAS_ENTITY_TEXT_AREA,
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24 CANVAS_ENTITY_DROPDOWN,
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25 CANVAS_ENTITY_ACCORDION,
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26 CANVAS_ENTITY_CARD,
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27 CANVAS_ENTITY_CALENDAR,
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28 CANVAS_ENTITY_SWITCH,
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29 CANVAS_ENTITY_TABLE,
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30 CANVAS_ENTITY_NOTIFICATION,
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31 CANVAS_ENTITY_SCROLL_AREA,
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32 CANVAS_ENTITY_IMAGE,
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33 CANVAS_ENTITY_WEB_CONTENT,
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34 CANVAS_ENTITY_LUCIDE_GALLERY,
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35 CANVAS_ENTITY_TYPE_COUNT,
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36 } Canvas_Entity_Type;
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37
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38 typedef struct {
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39 uint32 id;
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40 Canvas_Entity_Type type;
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41 Vector2 position;
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42 Vector2 size;
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43 Color color;
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44 char text[CANVAS_ENTITY_TEXT_CAPACITY];
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45 int32 value;
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46 int32 text_cursor;
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47 int32 text_selection_anchor;
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48 float text_scroll_y;
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49 float visibility_amount;
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50 boolean active;
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51 boolean pinned;
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52 boolean removing;
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53 boolean screen_space_initialized;
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54 float hover_amount;
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55 float animation_amount;
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56 float web_chrome_amount;
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57 Vector2 pinned_screen_position;
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58 Vector2 pinned_screen_size;
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59 } Canvas_Entity;
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60
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61 typedef struct {
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62 Vector2 target;
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63 float zoom;
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64 int32 viewport_width;
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65 int32 viewport_height;
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66 float min_zoom;
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67 float max_zoom;
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68 } Canvas_Camera;
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69
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70 typedef struct {
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71 Dowa_Arena *p_arena;
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72 Canvas_Entity *p_entities;
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73 uint32 next_entity;
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74 uint32 next_entity_id;
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75 int32 selected_index;
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76 int32 pressed_index;
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77 int32 hover_index;
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78 boolean dragging;
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79 boolean resizing;
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80 boolean selecting_text;
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81 boolean editing_web_url;
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82 boolean show_grid;
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83 float notification_stack_amount;
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84 uint32 web_url_entity_id;
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85 int32 web_url_cursor;
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86 int32 web_url_selection_anchor;
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87 float web_url_scroll_x;
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88 char web_url_draft[CANVAS_ENTITY_TEXT_CAPACITY];
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89 Vector2 pointer_start;
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90 Vector2 entity_start;
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91 Vector2 entity_size_start;
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92 } Canvas_Scene;
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93
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94 typedef struct {
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95 size_t visible_count;
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96 size_t bytes_written;
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97 boolean truncated;
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98 } Canvas_Context_Snapshot;
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99
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100 typedef enum {
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101 CANVAS_WEB_CHROME_NONE = 0,
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102 CANVAS_WEB_CHROME_CAPTURE,
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103 CANVAS_WEB_CHROME_BACK,
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104 CANVAS_WEB_CHROME_FORWARD,
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105 CANVAS_WEB_CHROME_NAVIGATE,
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106 } Canvas_Web_Chrome_Action;
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107
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108 void Canvas_Camera_Init(Canvas_Camera *p_camera, int32 width, int32 height);
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109 void Canvas_Camera_Set_Viewport(Canvas_Camera *p_camera, int32 width, int32 height);
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110 Vector2 Canvas_Camera_Screen_To_World(const Canvas_Camera *p_camera, Vector2 screen);
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111 Vector2 Canvas_Camera_World_To_Screen(const Canvas_Camera *p_camera, Vector2 world);
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112 void Canvas_Camera_Pan(Canvas_Camera *p_camera, Vector2 screen_delta);
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113 void Canvas_Camera_Zoom_At(
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114 Canvas_Camera *p_camera,
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115 Vector2 screen_anchor,
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116 float zoom_multiplier);
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117 Rectangle Canvas_Camera_Viewport_Bounds(const Canvas_Camera *p_camera);
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118 void Canvas_Camera_Fit_Bounds(
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119 Canvas_Camera *p_camera,
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120 Rectangle bounds,
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121 float padding_left,
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122 float padding_top,
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123 float padding_right,
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124 float padding_bottom);
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125 float Canvas_Grid_Spacing(float zoom);
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126 int32 Canvas_Lucide_Count_Matches(const char *p_query);
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127 Canvas_Web_Chrome_Action Canvas_Web_Chrome_Update_Input(
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128 const Canvas_Camera *p_camera,
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129 Canvas_Scene *p_scene,
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130 Font font,
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131 const char *p_current_url);
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132 boolean Canvas_Web_Chrome_Is_Editing(const Canvas_Scene *p_scene);
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133
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134 void Canvas_Scene_Init(Canvas_Scene *p_scene, Dowa_Arena *p_arena);
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135 boolean Canvas_Scene_Add(Canvas_Scene *p_scene, Canvas_Entity_Type type, Vector2 position);
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136 void Canvas_Scene_Clear(Canvas_Scene *p_scene);
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137 void Canvas_Scene_Fade_Out_All(Canvas_Scene *p_scene);
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138 void Canvas_Scene_Fade_Out_Selected(Canvas_Scene *p_scene);
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139 void Canvas_Scene_Add_Demo(Canvas_Scene *p_scene);
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140 void Canvas_Scene_Add_Browser_Grid(Canvas_Scene *p_scene);
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141 boolean Canvas_Scene_Show_Lucide_Gallery(
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142 Canvas_Scene *p_scene,
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143 Canvas_Camera *p_camera);
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144 int32 Canvas_Scene_Pick(
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145 const Canvas_Scene *p_scene,
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146 Vector2 world_pointer,
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147 float zoom);
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148 int32 Canvas_Scene_Topmost_Visual(
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149 const Canvas_Scene *p_scene,
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150 Vector2 world_pointer,
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151 float zoom);
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152 boolean Canvas_Scene_Update_Interaction(
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153 Canvas_Scene *p_scene,
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154 const Canvas_Camera *p_camera,
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155 Font font,
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156 boolean block_pointer_input);
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157 boolean Canvas_Scene_Is_Text_Editing(const Canvas_Scene *p_scene);
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158 void Canvas_Scene_Toggle_Selected_Pin(
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159 Canvas_Scene *p_scene,
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160 const Canvas_Camera *p_camera);
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161 void Canvas_Scene_Sync_Pinned(
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162 Canvas_Scene *p_scene,
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163 const Canvas_Camera *p_camera);
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164 void Canvas_Scene_Update_Notification_Stack(
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165 Canvas_Scene *p_scene,
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166 const Canvas_Camera *p_camera);
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167 Canvas_Context_Snapshot Canvas_Scene_Build_Visible_Context(
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168 const Canvas_Scene *p_scene,
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169 const Canvas_Camera *p_camera,
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170 char *p_buffer,
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171 size_t buffer_size);
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172
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173 void Canvas_Update_Camera_Input(
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174 Canvas_Camera *p_camera,
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175 boolean block_pointer_input,
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176 boolean block_keyboard_input);
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177 void Canvas_Draw_World(
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178 const Canvas_Camera *p_camera,
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179 const Canvas_Scene *p_scene,
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180 Font font,
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181 const Canvas_Theme *p_theme);
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182 void Canvas_Draw_World_Background(
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183 const Canvas_Camera *p_camera,
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184 const Canvas_Scene *p_scene,
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185 const Canvas_Theme *p_theme);
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186 void Canvas_Draw_World_Entity(
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187 const Canvas_Camera *p_camera,
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188 const Canvas_Scene *p_scene,
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189 size_t entity_index,
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190 Font font,
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191 const Canvas_Theme *p_theme);
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192 void Canvas_Draw_Web_Chrome_Entity(
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193 const Canvas_Camera *p_camera,
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194 const Canvas_Scene *p_scene,
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195 size_t entity_index,
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196 Font font,
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197 const Canvas_Theme *p_theme,
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198 const char *p_url,
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199 boolean can_go_back,
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200 boolean can_go_forward);
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201 void Canvas_Draw_World_Overlays(
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202 const Canvas_Camera *p_camera,
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203 const Canvas_Scene *p_scene,
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204 Font font,
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205 const Canvas_Theme *p_theme);
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206
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207 const char *Canvas_Entity_Type_Name(Canvas_Entity_Type type);
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208
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209 #endif