+++ /dev/null
-/* Copyright (C) 2021-2024 Harry Godden (hgn) - All Rights Reserved */
-
-/*
- * Principles:
- *
- * 1. layout is defined by subdividing
- * 2. a parent node should never be resized by the content after creation
- * 3. when the ui is in an interactive state, no controls should ever move
- * 4. controls directly reference a memory location and use that as their
- * unique id
- * 5. a maximum of ONE control per memory location can be drawn at any given
- * point.
- */
-
-#pragma once
-
-#include "vg_engine.h"
-#include "vg_tex.h"
-#include "vg_shader.h"
-
-typedef i16 ui_px;
-typedef ui_px ui_rect[4];
-typedef ui_px ui_point[2];
-typedef struct ui_vert ui_vert;
-
-enum ui_axis {
- k_ui_axis_h = 0x0u,
- k_ui_axis_v = 0x1u,
-};
-
-/* Relative to cursor p0 */
-enum ui_align
-{ /* DC BA */
- k_ui_align_lwr = 0xff,
- k_ui_align_left = 0x0000| 0x00,
- k_ui_align_right = 0x0000| 0x01,
- k_ui_align_center = 0x0000| 0x02,
-
- k_ui_align_middle = 0x0100,
- k_ui_align_middle_left = 0x0100| 0x00,
- k_ui_align_middle_right = 0x0100| 0x01,
- k_ui_align_middle_center = 0x0100| 0x02,
-
- k_ui_align_bottom = 0x0200,
- k_ui_align_bottom_left = 0x0200| 0x00,
- k_ui_align_bottom_right = 0x0200| 0x01,
- k_ui_align_bottom_center = 0x0200| 0x02,
-};
-
-#pragma pack(push,1)
-struct ui_vert
-{
- ui_px co[2];
- u16 uv[2];
- u32 colour;
-};
-#pragma pack(pop)
-
-enum ui_scheme_colour{
- k_ui_bg = 0,
- k_ui_fg = 8,
- k_ui_hue = 16,
- k_ui_red = 16,
- k_ui_orange,
- k_ui_yellow,
- k_ui_green,
- k_ui_aqua,
- k_ui_blue,
- k_ui_purple,
- k_ui_gray,
- k_ui_brighter = 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];
-
-struct ui_font {
- ui_px glyph_width,
- glyph_height,
- glyph_baseline,
- line_height,
- sheet_size,
- spacing,
- offset_y;
-
- u8 ascii_start;
-};
-typedef struct ui_font ui_font;
-
-extern ui_font vg_ui_font_small, vg_ui_font_big;
-
-#define UI_RGB( STDHEX ) 0xff000000 |\
- ((STDHEX&0x000000ff)<<16) |\
- ((STDHEX&0x0000ff00) ) |\
- ((STDHEX&0x00ff0000)>>16)
-
-#define UI_TEXTBOX_MULTILINE 0x1
-#define UI_TEXTBOX_WRAP 0x2
-#define UI_TEXTBOX_AUTOFOCUS 0x4
-
-#define UI_MODAL_OK 0x0
-#define UI_MODAL_GOOD 0x1
-#define UI_MODAL_BAD 0x2
-#define UI_MODAL_WARN 0x3
-#define UI_MODAL_TYPE_BITS 0x3
-
-#define UI_MOUSE_LEFT (SDL_BUTTON(SDL_BUTTON_LEFT))
-#define UI_MOUSE_RIGHT (SDL_BUTTON(SDL_BUTTON_RIGHT))
-#define UI_MOUSE_MIDDLE (SDL_BUTTON(SDL_BUTTON_MIDDLE))
-
-#define UI_TOP 0x1
-#define UI_LEFT 0x2
-#define UI_BOTTOM 0x4
-#define UI_RIGHT 0x8
-
-struct vg_imgui
-{
- struct ui_vert *vertex_buffer;
- u16 *indice_buffer;
- u32 max_verts, max_indices,
- cur_vert, cur_indice,
- vert_start, indice_start;
-
- union {
- void *focused_control_id; /* uses the memory location of various locking
- controls as an id */
- char *textbuf;
- i32 *ptr_enum;
- };
-
- u32 focused_control_hit;
- enum ui_control_type{
- k_ui_control_none,
- k_ui_control_textbox,
- k_ui_control_enum,
- k_ui_control_modal
- }
- focused_control_type;
-
- union{ /* controls that can be focused */
- struct ui_textbuf{
- int cursor_user, cursor_pos;
- u32 len;
- u32 flags;
-
- struct ui_textbox_callbacks{
- void (*enter)( char *, u32 ),
- (*up)( char *, u32 ),
- (*down)( char *, u32 ),
- (*change)( char *, u32 ),
- (*escape)( void );
- }
- callbacks;
- }
- textbox;
-
- struct ui_enum{
- struct ui_enum_opt{
- i32 value;
- const char *alias;
- }
- *options;
- u32 option_count;
- ui_rect rect;
- }
- _enum;
- };
-
- struct ui_modal{
- const char *message;
- u32 options;
-
- struct ui_modal_callbacks{
- void (*close)(u32);
- }
- callbacks;
- }
- modal;
-
- GLuint tex_glyphs, vao, vbo, ebo, tex_bg;
- v2f bg_inverse_ratio;
-
- ui_px mouse[2], mouse_delta[2], mouse_click[2];
- u32 mouse_state[2];
- u32 ignore_input_frames;
- bool mouse_pos_overriden;
- int wants_mouse;
-
- ui_rect click_fader, click_fader_end;
- float click_fade_opacity;
- f32 frosting;
-
- ui_scheme scheme;
- const ui_font *font;
-
- enum ui_cursor{
- k_ui_cursor_default,
- k_ui_cursor_ibeam,
- k_ui_cursor_hand,
- k_ui_cursor_max
- }
- cursor;
-
- SDL_Cursor *cursor_map[ k_ui_cursor_max ];
- v4f colour;
-
- f32 hue; /* lol this sucks */
-}
-extern vg_ui;
-
-enum ui_button_state {
- k_ui_button_none = 0x0,
- k_ui_button_click = 0x1,
- k_ui_button_holding_inside = 0x2,
- k_ui_button_holding_outside = 0x4,
- k_ui_button_hover = 0x8
-};
-
-/* 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_set_mouse_pos( ui_px x, ui_px y );
-void ui_prerender(void);
-u32 ui_colour( enum ui_scheme_colour id );
-
-/* 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 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 );
-bool 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