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Added 2 finger camera pan, zoom, and rotate

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This commit is contained in:
Yousef Khadadeh 2026-03-05 12:03:10 +03:00
parent ac911f3f87
commit 8b46c31bd7
10 changed files with 295 additions and 18 deletions
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23
src/InputManager.hpp
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@ -21,6 +21,7 @@ class MainProgram;
struct InputManager {
InputManager(MainProgram& initMain);
void update();
void frame_reset(const Vector2i& windowSize);
// Just renamed SDL3 cursor types, but if we need to change to a different backend we can
@ -77,6 +78,13 @@ struct InputManager {
bool isDown = false;
int leftClicksSaved = 0;
std::chrono::steady_clock::time_point lastLeftClickTime;
std::vector<SDL_TouchFingerEvent> fingers;
enum TypeOfTouchEvent {
NO_TOUCH_EVENT,
ONE_FINGER_EVENT,
TWO_FINGER_EVENT,
EVENT_DONE
} touchEventType = EVENT_DONE;
} touch;
struct Pen {
@ -208,6 +216,8 @@ struct InputManager {
uint32_t make_generic_key_mod(SDL_Keymod m);
void set_key_up(const SDL_KeyboardEvent& e, KeyCode kCode);
void set_key_down(const SDL_KeyboardEvent& e, KeyCode kCode);
std::vector<Vector2f> get_multiple_finger_positions();
std::vector<Vector2f> get_multiple_finger_motions();
void backend_drop_file_event(const SDL_DropEvent& e);
void backend_drop_text_event(const SDL_DropEvent& e);
@ -223,6 +233,9 @@ struct InputManager {
void backend_pen_touch_up_update(const SDL_PenTouchEvent& e);
void backend_pen_motion_update(const SDL_PenMotionEvent& e);
void backend_pen_axis_update(const SDL_PenAxisEvent& e);
void backend_touch_finger_down_update(const SDL_TouchFingerEvent& e);
void backend_touch_finger_up_update(const SDL_TouchFingerEvent& e);
void backend_touch_finger_motion_update(const SDL_TouchFingerEvent& e);
void set_clipboard_str(std::string_view s);
void set_clipboard_plain_and_richtext_pair(const std::pair<std::string, RichText::TextData>& plainAndRichtextPair);
@ -301,6 +314,16 @@ struct InputManager {
const char* data;
};
struct MultiFingerTouchArgs {
bool down;
std::vector<Vector2f> pos;
};
struct MultiFingerMotionArgs {
std::vector<Vector2f> pos;
std::vector<Vector2f> move;
};
MainProgram& main;
};