luboslenco
410 lines
13 KiB
C
410 lines
13 KiB
C
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// Immediate Mode UI Library
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#pragma once
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#include "iron_armpack.h"
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#include "iron_draw.h"
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#include <stdbool.h>
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#include <stdint.h>
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typedef enum {
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UI_LAYOUT_VERTICAL,
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UI_LAYOUT_HORIZONTAL
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} ui_layout_t;
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typedef enum {
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UI_ALIGN_LEFT,
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UI_ALIGN_CENTER,
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UI_ALIGN_RIGHT
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} ui_align_t;
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typedef enum {
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UI_STATE_IDLE,
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UI_STATE_STARTED,
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UI_STATE_DOWN,
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UI_STATE_RELEASED,
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UI_STATE_HOVERED
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} ui_state_t;
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typedef enum {
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UI_LINK_STYLE_LINE,
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UI_LINK_STYLE_CUBIC_BEZIER
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} ui_link_style_t;
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typedef struct ui_theme {
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int WINDOW_BG_COL;
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int HOVER_COL;
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int BUTTON_COL;
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int PRESSED_COL;
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int TEXT_COL;
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int LABEL_COL;
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int SEPARATOR_COL;
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int HIGHLIGHT_COL;
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int FONT_SIZE;
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int ELEMENT_W;
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int ELEMENT_H;
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int ELEMENT_OFFSET;
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int ARROW_SIZE;
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int BUTTON_H;
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int CHECK_SIZE;
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int CHECK_SELECT_SIZE;
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int SCROLL_W;
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int SCROLL_MINI_W;
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int TEXT_OFFSET;
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int TAB_W; // Indentation
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/*bool*/ int FILL_WINDOW_BG;
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/*bool*/ int FILL_BUTTON_BG;
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int LINK_STYLE;
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/*bool*/ int FULL_TABS; // Make tabs take full window width
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/*bool*/ int ROUND_CORNERS;
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/*bool*/ int SHADOWS;
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int VIEWPORT_COL;
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} ui_theme_t;
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typedef struct ui_options {
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draw_font_t *font;
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ui_theme_t *theme;
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float scale_factor;
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gpu_texture_t *color_wheel;
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gpu_texture_t *black_white_gradient;
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} ui_options_t;
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typedef struct ui_handle_array {
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struct ui_handle **buffer;
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int length;
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int capacity;
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} ui_handle_array_t;
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typedef struct ui_handle {
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union {
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float f;
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int i;
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bool b;
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};
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union {
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struct { // window
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int layout;
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int drag_x;
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int drag_y;
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float last_max_x;
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float last_max_y;
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float scroll_offset;
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};
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struct { // color_wheel
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float hue;
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float sat;
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float val;
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float red;
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float green;
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float blue;
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};
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};
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uint32_t color;
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int redraws;
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char *text;
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bool scroll_enabled;
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bool drag_enabled;
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bool changed;
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bool init;
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gpu_texture_t texture;
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ui_handle_array_t *children;
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} ui_handle_t;
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typedef struct ui_text_extract {
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char colored[1024];
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char uncolored[1024];
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} ui_text_extract_t;
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typedef struct ui_coloring {
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uint32_t color;
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char_ptr_array_t *start;
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char *end;
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bool separated;
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} ui_coloring_t;
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typedef struct ui_coloring_array {
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ui_coloring_t **buffer;
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int length;
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int capacity;
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} ui_coloring_array_t;
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typedef struct ui_text_coloring {
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ui_coloring_array_t *colorings;
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uint32_t default_color;
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} ui_text_coloring_t;
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typedef struct ui {
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bool is_scrolling; // Use to limit other activities
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bool is_typing;
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bool enabled; // Current element state
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bool is_started;
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bool is_pushed;
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bool is_hovered;
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bool is_released;
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bool changed; // Global elements change check
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bool scroll_enabled;
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bool always_redraw; // Hurts performance
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bool highlight_on_select; // Highlight text edit contents on selection
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bool tab_switch_enabled; // Allow switching focus to the next element by pressing tab
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ui_text_coloring_t *text_coloring; // Set coloring scheme for ui_draw_string() calls
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int window_border_top;
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int window_border_bottom;
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int window_border_left;
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int window_border_right;
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char hovered_tab_name[256];
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float hovered_tab_x;
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float hovered_tab_y;
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float hovered_tab_w;
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float hovered_tab_h;
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bool touch_hold_activated;
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bool slider_tooltip;
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float slider_tooltip_x;
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float slider_tooltip_y;
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float slider_tooltip_w;
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bool input_enabled;
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float input_x; // Input position
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float input_y;
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float input_started_x;
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float input_started_y;
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float input_dx; // Delta
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float input_dy;
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float input_wheel_delta;
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bool input_started; // Buttons
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bool input_started_r;
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bool input_released;
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bool input_released_r;
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bool input_down;
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bool input_down_r;
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bool pen_in_use;
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bool is_key_pressed; // Keys
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bool is_key_down;
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bool is_shift_down;
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bool is_ctrl_down;
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bool is_alt_down;
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bool is_a_down;
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bool is_backspace_down;
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bool is_delete_down;
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bool is_escape_down;
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bool is_return_down;
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bool is_tab_down;
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int key_code;
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int key_char;
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float input_started_time;
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int cursor_x; // Text input
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int highlight_anchor;
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f32_array_t *ratios; // Splitting rows
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int current_ratio;
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float x_before_split;
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int w_before_split;
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ui_options_t *ops;
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int font_size;
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float font_offset_y; // Precalculated offsets
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float arrow_offset_x;
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float arrow_offset_y;
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float title_offset_x;
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float button_offset_y;
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float check_offset_x;
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float check_offset_y;
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float check_select_offset_x;
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float check_select_offset_y;
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float radio_offset_x;
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float radio_offset_y;
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float radio_select_offset_x;
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float radio_select_offset_y;
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float scroll_align;
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bool image_scroll_align;
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float _x; // Cursor(stack) position
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float _y;
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int _w;
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int _h;
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float _window_x; // Window state
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float _window_y;
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float _window_w;
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float _window_h;
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ui_handle_t *current_window;
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bool window_ended;
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ui_handle_t *scroll_handle; // Window or slider being scrolled
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ui_handle_t *drag_handle; // Window being dragged
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ui_handle_t *drag_tab_handle; // Tab being dragged
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int drag_tab_position;
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float window_header_w;
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float window_header_h;
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float restore_x;
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float restore_y;
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ui_handle_t *text_selected_handle;
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char text_selected[1024];
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ui_handle_t *submit_text_handle;
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char text_to_submit[1024];
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bool tab_pressed;
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ui_handle_t *tab_pressed_handle;
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ui_handle_t *combo_selected_handle;
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ui_handle_t *combo_selected_window;
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int combo_selected_align;
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char_ptr_array_t *combo_selected_texts;
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char *combo_selected_label;
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int combo_selected_x;
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int combo_selected_y;
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int combo_selected_w;
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int combo_selected_texts_filtered;
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bool combo_search_bar;
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ui_handle_t *submit_combo_handle;
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int combo_to_submit;
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int combo_initial_value;
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char tooltip_text[512];
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gpu_texture_t *tooltip_img;
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int tooltip_img_max_width;
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float tooltip_x;
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float tooltip_y;
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bool tooltip_shown;
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bool tooltip_wait;
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double tooltip_time;
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char tab_names[16][256];
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uint32_t tab_colors[16];
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bool tab_enabled[16];
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int tab_count; // Number of tab calls since window begin
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ui_handle_t *tab_handle;
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float tab_scroll;
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bool tab_vertical;
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bool tab_align_right;
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bool sticky;
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bool scissor;
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bool elements_baked;
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gpu_texture_t check_select_image;
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gpu_texture_t radio_image;
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gpu_texture_t radio_select_image;
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gpu_texture_t round_corner_image;
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gpu_texture_t filled_round_corner_image;
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} ui_t;
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void ui_init(ui_t *ui, ui_options_t *ops);
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void ui_begin(ui_t *ui);
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void ui_begin_sticky();
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void ui_end_sticky();
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void ui_begin_region(ui_t *ui, int x, int y, int w);
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void ui_end_region();
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bool ui_window(ui_handle_t *handle, int x, int y, int w, int h, bool drag); // Returns true if redraw is needed
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bool ui_button(char *text, int align, char *label);
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int ui_text(char *text, int align, int bg);
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bool ui_tab(ui_handle_t *handle, char *text, bool vertical, uint32_t color, bool align_right);
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bool ui_panel(ui_handle_t *handle, char *text, bool is_tree, bool filled, bool align_right);
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int ui_sub_image(gpu_texture_t *image, uint32_t tint, int h, int sx, int sy, int sw, int sh);
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int ui_image(gpu_texture_t *image, uint32_t tint, int h);
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char *ui_text_input(ui_handle_t *handle, char *label, int align, bool editable, bool live_update);
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bool ui_check(ui_handle_t *handle, char *text, char *label);
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bool ui_radio(ui_handle_t *handle, int position, char *text, char *label);
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int ui_combo(ui_handle_t *handle, char_ptr_array_t *texts, char *label, bool show_label, int align, bool search_bar);
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float ui_slider(ui_handle_t *handle, char *text, float from, float to, bool filled, float precision, bool display_value, int align, bool text_edit);
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void ui_row(f32_array_t *ratios);
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void ui_row2();
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void ui_row3();
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void ui_row4();
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void ui_row5();
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void ui_row6();
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void ui_row7();
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void ui_separator(int h, bool fill);
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void ui_tooltip(char *text);
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void ui_tooltip_image(gpu_texture_t *image, int max_width);
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void ui_end();
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void ui_end_window();
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char *ui_hovered_tab_name();
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void ui_set_hovered_tab_name(char *name);
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void ui_mouse_down(ui_t *ui, int button, int x, int y); // Input events
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void ui_mouse_move(ui_t *ui, int x, int y, int movement_x, int movement_y);
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void ui_mouse_up(ui_t *ui, int button, int x, int y);
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void ui_mouse_wheel(ui_t *ui, float delta);
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void ui_pen_down(ui_t *ui, int x, int y, float pressure);
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void ui_pen_up(ui_t *ui, int x, int y, float pressure);
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void ui_pen_move(ui_t *ui, int x, int y, float pressure);
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void ui_key_down(ui_t *ui, int key_code);
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void ui_key_up(ui_t *ui, int key_code);
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void ui_key_press(ui_t *ui, unsigned character);
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#if defined(IRON_ANDROID) || defined(IRON_IOS)
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void ui_touch_down(ui_t *ui, int index, int x, int y);
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void ui_touch_up(ui_t *ui, int index, int x, int y);
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void ui_touch_move(ui_t *ui, int index, int x, int y);
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#endif
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char *ui_copy();
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char *ui_cut();
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void ui_paste(char *s);
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void ui_theme_default(ui_theme_t *t);
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ui_t *ui_get_current();
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void ui_set_current(ui_t *current);
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ui_handle_t *ui_handle_create();
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ui_handle_t *ui_nest(ui_handle_t *handle, int pos);
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void ui_set_scale(float factor);
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bool ui_get_hover(float elem_h);
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bool ui_get_released(float elem_h);
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bool ui_input_in_rect(float x, float y, float w, float h);
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void ui_fill(float x, float y, float w, float h, uint32_t color);
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void ui_rect(float x, float y, float w, float h, uint32_t color, float strength);
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int ui_line_count(char *str);
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char *ui_extract_line(char *str, int line);
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bool ui_is_visible(float elem_h);
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void ui_end_element();
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void ui_end_element_of_size(float element_size);
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void ui_end_input();
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void ui_end_frame();
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void ui_fade_color(float alpha);
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void ui_draw_string(char *text, float x_offset, float y_offset, int align, bool truncation);
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void ui_draw_shadow(float x, float y, float w, float h);
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void ui_draw_rect(bool fill, float x, float y, float w, float h);
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void ui_draw_round_bottom(float x, float y, float w);
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void ui_start_text_edit(ui_handle_t *handle, int align);
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void ui_remove_char_at(char *str, int at);
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void ui_remove_chars_at(char *str, int at, int count);
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void ui_insert_char_at(char *str, int at, char c);
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void ui_insert_chars_at(char *str, int at, char *cs);
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float UI_SCALE();
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float UI_ELEMENT_W();
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float UI_ELEMENT_H();
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float UI_ELEMENT_OFFSET();
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float UI_ARROW_SIZE();
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float UI_BUTTON_H();
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float UI_CHECK_SIZE();
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float UI_CHECK_SELECT_SIZE();
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float UI_FONT_SIZE();
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float UI_SCROLL_W();
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float UI_TEXT_OFFSET();
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float UI_TAB_W();
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float UI_HEADER_DRAG_H();
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float UI_FLASH_SPEED();
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float UI_TOOLTIP_DELAY();
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extern bool ui_touch_control;
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extern float ui_touch_speed;
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extern bool ui_is_cut;
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extern bool ui_is_copy;
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extern bool ui_is_paste;
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extern void (*ui_on_border_hover)(ui_handle_t *, int);
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extern void (*ui_on_tab_drop)(ui_handle_t *, int, ui_handle_t *, int);
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extern const char *ui_theme_keys[];
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extern int ui_theme_keys_count;
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float ui_float_input(ui_handle_t *handle, char *label, int align, float precision);
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int ui_inline_radio(ui_handle_t *handle, char_ptr_array_t *texts, int align);
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int ui_color_wheel(ui_handle_t *handle, bool alpha, float w, float h, bool color_preview, void (*picker)(void *), void *data);
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char *ui_text_area(ui_handle_t *handle, int align, bool editable, char *label, bool word_wrap);
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void ui_begin_menu();
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void ui_end_menu();
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bool ui_menubar_button(char *text);
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void ui_hsv_to_rgb(float cr, float cg, float cb, float *out);
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void ui_rgb_to_hsv(float cr, float cg, float cb, float *out);
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uint8_t ui_color_r(uint32_t color);
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uint8_t ui_color_g(uint32_t color);
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uint8_t ui_color_b(uint32_t color);
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uint8_t ui_color_a(uint32_t color);
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uint32_t ui_color(uint8_t r, uint8_t g, uint8_t b, uint8_t a);
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extern bool ui_text_area_line_numbers;
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extern bool ui_text_area_scroll_past_end;
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extern ui_text_coloring_t *ui_text_area_coloring;
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