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-rw-r--r--src/input_common/drivers/touch_screen.h52
1 files changed, 38 insertions, 14 deletions
diff --git a/src/input_common/drivers/touch_screen.h b/src/input_common/drivers/touch_screen.h
index 193478ead..f46036ffd 100644
--- a/src/input_common/drivers/touch_screen.h
+++ b/src/input_common/drivers/touch_screen.h
@@ -3,41 +3,65 @@
#pragma once
+#include <optional>
+
#include "input_common/input_engine.h"
namespace InputCommon {
/**
- * A button device factory representing a keyboard. It receives keyboard events and forward them
- * to all button devices it created.
+ * A touch device factory representing a touch screen. It receives touch events and forward them
+ * to all touch devices it created.
*/
class TouchScreen final : public InputEngine {
public:
explicit TouchScreen(std::string input_engine_);
/**
- * Signals that mouse has moved.
- * @param x the x-coordinate of the cursor
- * @param y the y-coordinate of the cursor
- * @param center_x the x-coordinate of the middle of the screen
- * @param center_y the y-coordinate of the middle of the screen
+ * Signals that touch has moved and marks this touch point as active
+ * @param x new horizontal position
+ * @param y new vertical position
+ * @param finger_id of the touch point to be updated
*/
- void TouchMoved(float x, float y, std::size_t finger);
+ void TouchMoved(float x, float y, std::size_t finger_id);
/**
- * Sets the status of all buttons bound with the key to pressed
- * @param key_code the code of the key to press
+ * Signals and creates a new touch point with this finger id
+ * @param x starting horizontal position
+ * @param y starting vertical position
+ * @param finger_id to be assigned to the new touch point
*/
- void TouchPressed(float x, float y, std::size_t finger);
+ void TouchPressed(float x, float y, std::size_t finger_id);
/**
- * Sets the status of all buttons bound with the key to released
- * @param key_code the code of the key to release
+ * Signals and resets the touch point related to the this finger id
+ * @param finger_id to be released
*/
- void TouchReleased(std::size_t finger);
+ void TouchReleased(std::size_t finger_id);
+
+ /// Resets the active flag for each touch point
+ void ClearActiveFlag();
+
+ /// Releases all touch that haven't been marked as active
+ void ReleaseInactiveTouch();
/// Resets all inputs to their initial value
void ReleaseAllTouch();
+
+private:
+ static constexpr std::size_t MAX_FINGER_COUNT = 16;
+
+ struct TouchStatus {
+ std::size_t finger_id{};
+ bool is_enabled{};
+ bool is_active{};
+ };
+
+ std::optional<std::size_t> GetIndexFromFingerId(std::size_t finger_id) const;
+
+ std::optional<std::size_t> GetNextFreeIndex() const;
+
+ std::array<TouchStatus, MAX_FINGER_COUNT> fingers{};
};
} // namespace InputCommon