95 lines
2.8 KiB
C++
95 lines
2.8 KiB
C++
#include "EpubReaderMenuActivity.h"
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#include <GfxRenderer.h>
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#include "config.h"
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constexpr int MENU_ITEMS_COUNT = 2;
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void EpubReaderMenuActivity::taskTrampoline(void* param) {
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auto* self = static_cast<EpubReaderMenuActivity*>(param);
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self->displayTaskLoop();
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}
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void EpubReaderMenuActivity::onEnter() {
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renderingMutex = xSemaphoreCreateMutex();
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selectorIndex = 0;
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// Trigger first update
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updateRequired = true;
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xTaskCreate(&EpubReaderMenuActivity::taskTrampoline, "EpubReaderMenuTask",
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2048, // Stack size
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this, // Parameters
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1, // Priority
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&displayTaskHandle // Task handle
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);
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}
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void EpubReaderMenuActivity::onExit() {
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// Wait until not rendering to delete task to avoid killing mid-instruction to EPD
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xSemaphoreTake(renderingMutex, portMAX_DELAY);
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if (displayTaskHandle) {
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vTaskDelete(displayTaskHandle);
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displayTaskHandle = nullptr;
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}
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vSemaphoreDelete(renderingMutex);
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renderingMutex = nullptr;
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}
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void EpubReaderMenuActivity::loop() {
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const bool prevReleased =
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inputManager.wasReleased(InputManager::BTN_UP) || inputManager.wasReleased(InputManager::BTN_LEFT);
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const bool nextReleased =
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inputManager.wasReleased(InputManager::BTN_DOWN) || inputManager.wasReleased(InputManager::BTN_RIGHT);
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if (inputManager.wasPressed(InputManager::BTN_CONFIRM)) {
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onSelectOption(static_cast<MenuOption>(selectorIndex));
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} else if (inputManager.wasPressed(InputManager::BTN_BACK)) {
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onGoBack();
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} else if (prevReleased) {
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selectorIndex = (selectorIndex + MENU_ITEMS_COUNT - 1) % MENU_ITEMS_COUNT;
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updateRequired = true;
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} else if (nextReleased) {
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selectorIndex = (selectorIndex + 1) % MENU_ITEMS_COUNT;
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updateRequired = true;
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}
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}
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void EpubReaderMenuActivity::displayTaskLoop() {
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while (true) {
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if (updateRequired) {
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updateRequired = false;
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xSemaphoreTake(renderingMutex, portMAX_DELAY);
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renderScreen();
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xSemaphoreGive(renderingMutex);
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}
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vTaskDelay(10 / portTICK_PERIOD_MS);
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}
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}
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void EpubReaderMenuActivity::renderScreen() {
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renderer.clearScreen();
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const auto pageWidth = renderer.getScreenWidth();
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renderer.drawCenteredText(READER_FONT_ID, 10, "Menu", true, BOLD);
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const char* menuItems[MENU_ITEMS_COUNT] = {"Go to chapter", "View footnotes"};
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const int startY = 100;
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const int itemHeight = 40;
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for (int i = 0; i < MENU_ITEMS_COUNT; i++) {
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const int y = startY + i * itemHeight;
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// Draw selection indicator
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if (i == selectorIndex) {
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renderer.fillRect(10, y + 2, pageWidth - 20, itemHeight - 4);
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renderer.drawText(UI_FONT_ID, 30, y, menuItems[i], false);
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} else {
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renderer.drawText(UI_FONT_ID, 30, y, menuItems[i], true);
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}
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}
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renderer.displayBuffer();
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}
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