64 lines
2.4 KiB
C
64 lines
2.4 KiB
C
#ifndef MENU_H
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#define MENU_H
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#include "stdint.h"
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#include "stdbool.h"
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#include "display.h"
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typedef struct _graphical_menu_t graphical_menu_t;
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typedef struct _menu_entry_size_t menu_entry_size_t;
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typedef void (*menu_callback_t)(void *const args);
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/*
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* Extra draw function is called after the menu entry is drawn
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* It is used to draw additional graphics on top of the menu entry
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* It is passed the size of the menu entry and the args
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*/
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typedef void (*extra_draw_function_t)(const menu_entry_size_t *const menu_entry_size, void *const args);
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typedef struct
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{
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const char *const title;
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bool disabled;
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const menu_callback_t highlighted_callback_function;
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void *const highlighted_callback_function_args;
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const menu_callback_t selected_callback_function;
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void *const selected_callback_function_args;
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const extra_draw_function_t extra_draw_function; // called after the menu entry is drawn
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void *const extra_draw_function_args;
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} graphical_menu_entry_t;
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struct _graphical_menu_t {
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graphical_menu_t *const parent_menu;
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const uint8_t num_children;
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uint8_t highlighted_child_idx;
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graphical_menu_entry_t *const children;
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};
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struct _menu_entry_size_t {
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const uint16_t x;
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const uint16_t y;
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const uint16_t width;
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const uint16_t height;
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};
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void draw_menu(volatile pixel_t *const framebuffer, const graphical_menu_t *const menu);
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void partial_redraw_menu(volatile pixel_t *const framebuffer, graphical_menu_t *const menu, uint8_t old_highlighted_entry_idx, uint8_t new_highlighted_entry_idx);
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void select_menu_entry(graphical_menu_t *const menu);
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void set_selected_menu_entry_idx(volatile pixel_t *const framebuffer, graphical_menu_t *const menu, uint8_t idx);
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void decrement_selected_menu_entry_idx(volatile pixel_t *const framebuffer, graphical_menu_t *const menu);
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void increment_selected_menu_entry_idx(volatile pixel_t *const framebuffer, graphical_menu_t *const menu);
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/*
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* Add a toggle switch to the menu entry
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* It is used to draw additional graphics on top of the menu entry
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* Arguments:
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* - menu_entry_size: the size of the menu entry
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* - toggle_switch_value: (bool *) the value of the toggle switch
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*
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* Can be used as a callback function for the extra_draw_function field in the graphical_menu_entry_t struct
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* This is why toggle_switch_value is a void pointer and not a bool pointer
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*/
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void add_toggle_switch_to_menu_entry(const menu_entry_size_t *const menu_entry_size, void *const toggle_switch_value);
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#endif |