gui_extensions.c

#include <gui/canvas.h>
#include <gui/icon_i.h>
#include "metronome_icons.h"

//lib can only do bottom left/right
void elements_button_top_left(Canvas* canvas, const char* str) {
    const uint8_t button_height = 12;
    const uint8_t vertical_offset = 3;
    const uint8_t horizontal_offset = 3;
    const uint8_t string_width = canvas_string_width(canvas, str);
    const Icon* icon = &I_ButtonUp_7x4;
    const uint8_t icon_h_offset = 3;
    const uint8_t icon_width_with_offset = icon->width + icon_h_offset;
    const uint8_t icon_v_offset = icon->height + vertical_offset;
    const uint8_t button_width = string_width + horizontal_offset * 2 + icon_width_with_offset;

    const uint8_t x = 0;
    const uint8_t y = 0 + button_height; 

    canvas_draw_box(canvas, x, y - button_height, button_width, button_height);
    canvas_draw_line(canvas, x + button_width + 0, y - button_height, x + button_width + 0, y - 1);
    canvas_draw_line(canvas, x + button_width + 1, y - button_height, x + button_width + 1, y - 2);
    canvas_draw_line(canvas, x + button_width + 2, y - button_height, x + button_width + 2, y - 3);

    canvas_invert_color(canvas);
    canvas_draw_icon(canvas, x + horizontal_offset, y - icon_v_offset, &I_ButtonUp_7x4);
    canvas_draw_str(
        canvas, x + horizontal_offset + icon_width_with_offset, y - vertical_offset, str);
    canvas_invert_color(canvas);
}

void elements_button_top_right(Canvas* canvas, const char* str) {
    const uint8_t button_height = 12;
    const uint8_t vertical_offset = 3;
    const uint8_t horizontal_offset = 3;
    const uint8_t string_width = canvas_string_width(canvas, str);
    const Icon* icon = &I_ButtonUp_7x4;
    const uint8_t icon_h_offset = 3;
    const uint8_t icon_width_with_offset = icon->width + icon_h_offset;
    const uint8_t icon_v_offset = icon->height + vertical_offset;
    const uint8_t button_width = string_width + horizontal_offset * 2 + icon_width_with_offset;

    const uint8_t x = canvas_width(canvas);
    const uint8_t y = 0 + button_height;

    canvas_draw_box(canvas, x - button_width, y - button_height, button_width, button_height);
    canvas_draw_line(canvas, x - button_width - 1, y - button_height, x - button_width - 1, y - 1);
    canvas_draw_line(canvas, x - button_width - 2, y - button_height, x - button_width - 2, y -  2);
    canvas_draw_line(canvas, x - button_width - 3, y - button_height, x - button_width - 3, y -  3);

    canvas_invert_color(canvas);
    canvas_draw_str(canvas, x - button_width + horizontal_offset, y - vertical_offset, str);
    canvas_draw_icon(
        canvas, x - horizontal_offset - icon->width, y - icon_v_offset, &I_ButtonUp_7x4);
    canvas_invert_color(canvas);
}