49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
#include "M5stackTouch.h"
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#include "M5Unified.hpp"
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#include "esp_err.h"
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#include "Log.h"
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#define TAG "m5stack_touch"
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static void touchReadCallback(TT_UNUSED lv_indev_t* indev, lv_indev_data_t* data) {
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lgfx::touch_point_t point; // Making it static makes it unreliable
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bool touched = M5.Lcd.getTouch(&point) > 0;
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if (!touched) {
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data->state = LV_INDEV_STATE_REL;
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} else {
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data->state = LV_INDEV_STATE_PR;
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data->point.x = point.x;
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data->point.y = point.y;
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}
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}
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_Nullable lv_indev_t* createTouch() {
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static lv_indev_t* indev = lv_indev_create();
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LV_ASSERT_MALLOC(indev)
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if (indev == nullptr) {
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return nullptr;
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}
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lv_indev_set_type(indev, LV_INDEV_TYPE_POINTER);
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lv_indev_set_read_cb(indev, touchReadCallback);
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return indev;
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}
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bool M5stackTouch::start(lv_display_t* display) {
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TT_LOG_I(TAG, "Adding touch to LVGL");
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deviceHandle = createTouch();
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if (deviceHandle == nullptr) {
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TT_LOG_E(TAG, "Adding touch failed");
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return false;
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}
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return true;
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}
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bool M5stackTouch::stop() {
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tt_assert(deviceHandle != nullptr);
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lv_indev_delete(deviceHandle);
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deviceHandle = nullptr;
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return true;
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}
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