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98 lines
3.1 KiB
98 lines
3.1 KiB
2 years ago
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// Created by MightyPork on 2023/04/09.
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//
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#include <stdbool.h>
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#include "screen_menu.h"
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#include "app_gui.h"
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#include "FreeRTOS.h"
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#include "task.h"
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#include "ufb/utf8.h"
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#include "ufb/framebuffer_config.h"
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#include "ufb/framebuffer.h"
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#include "ufb/fb_text.h"
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void screen_menu(GuiEvent event, const char **options, menu_callback_t cb) {
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bool menu_changed = false;
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const uint32_t tickNow = xTaskGetTickCount();
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struct menu_state *menu = &s_app.page.menu;
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switch (event) {
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case GUI_EVENT_SCREEN_INIT:
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menu->pos = 0;
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menu->len = 0;
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menu->change_time = tickNow;
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menu->text_slide = 0;
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const char **opt = options;
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while (*opt) {
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menu->len++;
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opt++;
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}
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break;
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case GUI_EVENT_SCREEN_TICK:
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// long text sliding animation
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if (tickNow - menu->change_time >= pdMS_TO_TICKS(500)) {
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const uint32_t textlen = utf8_strlen(options[menu->pos]) * 6;
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if (textlen >= FBW - 2) {
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if (textlen - menu->text_slide > FBW - 1) {
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menu->text_slide += 1;
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if (textlen - menu->text_slide >= FBW - 1) {
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menu->slide_end_time = tickNow;
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}
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} else if (tickNow - menu->slide_end_time >= pdMS_TO_TICKS(500)) {
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menu->change_time = tickNow;
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menu->slide_end_time = 0;
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menu->text_slide = 0;
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}
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request_paint();
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}
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}
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break;
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case GUI_EVENT_PAINT:
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for (int i = 0; i < menu->len; i++) {
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// is the row currently rendered the selected row?
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const bool is_selected = menu->pos == i;
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const fbcolor_t color = !is_selected; // text color - black if selected, because it's inverted
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const fbpos_t y = 27 + i * 10;
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fb_rect(0, y, FBW, 10, !color);
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fb_text(1 - (is_selected ? menu->text_slide : 0), y + 1, options[i], FONT_5X7, color);
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// ensure the text doesn't touch the edge (looks ugly)
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fb_vline(FBW - 1, y, 10, !color);
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fb_vline(0, y, 10, !color);
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}
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break;
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// the button is held! release is what activates the button
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case GUI_EVENT_KNOB_RELEASE:
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input_sound_effect();
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cb(menu->pos);
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break;
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case GUI_EVENT_KNOB_PLUS:
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if (menu->pos < menu->len - 1) {
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menu->pos++;
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menu_changed = true;
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}
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break;
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case GUI_EVENT_KNOB_MINUS:
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if (menu->pos > 0) {
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menu->pos--;
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menu_changed = true;
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}
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break;
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}
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if (menu_changed) {
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menu->change_time = tickNow;
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menu->text_slide = 0;
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menu->slide_end_time = 0;
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input_sound_effect();
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request_paint();
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}
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}
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