Merge pull request #12573 from poke1024/macostouchpad

Native pan and zoom for macOS + InputEventGesture

2 files changed, 122 insertions, 8 deletions

diff --git a/core/os/input_event.cpp b/core/os/input_event.cpp
index 6b43f2c63b..103a8e82c2 100644
--- a/core/os/input_event.cpp
+++ b/core/os/input_event.cpp
@@ -177,6 +177,14 @@ bool InputEventWithModifiers::get_command() const {
 	return command;
 }
 
+void InputEventWithModifiers::set_modifiers_from_event(const InputEventWithModifiers *event) {
+
+	set_alt(event->get_alt());
+	set_shift(event->get_shift());
+	set_control(event->get_control());
+	set_metakey(event->get_metakey());
+}
+
 void InputEventWithModifiers::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("set_alt", "enable"), &InputEventWithModifiers::set_alt);
@@ -436,10 +444,7 @@ Ref<InputEvent> InputEventMouseButton::xformed_by(const Transform2D &p_xform, co
 	mb->set_id(get_id());
 	mb->set_device(get_device());
 
-	mb->set_alt(get_alt());
-	mb->set_shift(get_shift());
-	mb->set_control(get_control());
-	mb->set_metakey(get_metakey());
+	mb->set_modifiers_from_event(this);
 
 	mb->set_position(l);
 	mb->set_global_position(g);
@@ -555,10 +560,7 @@ Ref<InputEvent> InputEventMouseMotion::xformed_by(const Transform2D &p_xform, co
 	mm->set_id(get_id());
 	mm->set_device(get_device());
 
-	mm->set_alt(get_alt());
-	mm->set_shift(get_shift());
-	mm->set_control(get_control());
-	mm->set_metakey(get_metakey());
+	mm->set_modifiers_from_event(this);
 
 	mm->set_position(l);
 	mm->set_global_position(g);
@@ -930,3 +932,75 @@ void InputEventAction::_bind_methods() {
 InputEventAction::InputEventAction() {
 	pressed = false;
 }
+/////////////////////////////
+
+void InputEventGesture::set_position(const Vector2 &p_pos) {
+
+	pos = p_pos;
+}
+
+Vector2 InputEventGesture::get_position() const {
+
+	return pos;
+}
+/////////////////////////////
+
+void InputEventMagnifyGesture::set_factor(real_t p_factor) {
+
+	factor = p_factor;
+}
+
+real_t InputEventMagnifyGesture::get_factor() const {
+
+	return factor;
+}
+
+Ref<InputEvent> InputEventMagnifyGesture::xformed_by(const Transform2D &p_xform, const Vector2 &p_local_ofs) const {
+
+	Ref<InputEventMagnifyGesture> ev;
+	ev.instance();
+
+	ev->set_id(get_id());
+	ev->set_device(get_device());
+	ev->set_modifiers_from_event(this);
+
+	ev->set_position(p_xform.xform(get_position() + p_local_ofs));
+	ev->set_factor(get_factor());
+
+	return ev;
+}
+
+InputEventMagnifyGesture::InputEventMagnifyGesture() {
+
+	factor = 1.0;
+}
+/////////////////////////////
+
+void InputEventPanGesture::set_delta(const Vector2 &p_delta) {
+
+	delta = p_delta;
+}
+
+Vector2 InputEventPanGesture::get_delta() const {
+	return delta;
+}
+
+Ref<InputEvent> InputEventPanGesture::xformed_by(const Transform2D &p_xform, const Vector2 &p_local_ofs) const {
+
+	Ref<InputEventPanGesture> ev;
+	ev.instance();
+
+	ev->set_id(get_id());
+	ev->set_device(get_device());
+	ev->set_modifiers_from_event(this);
+
+	ev->set_position(p_xform.xform(get_position() + p_local_ofs));
+	ev->set_delta(get_delta());
+
+	return ev;
+}
+
+InputEventPanGesture::InputEventPanGesture() {
+
+	delta = Vector2(0, 0);
+}
diff --git a/core/os/input_event.h b/core/os/input_event.h
index de3c0232ff..2cba60bede 100644
--- a/core/os/input_event.h
+++ b/core/os/input_event.h
@@ -213,6 +213,8 @@ public:
 	void set_command(bool p_enabled);
 	bool get_command() const;
 
+	void set_modifiers_from_event(const InputEventWithModifiers *event);
+
 	InputEventWithModifiers();
 };
 
@@ -468,4 +470,42 @@ public:
 	InputEventAction();
 };
 
+class InputEventGesture : public InputEventWithModifiers {
+
+	GDCLASS(InputEventGesture, InputEventWithModifiers)
+
+	Vector2 pos;
+
+public:
+	void set_position(const Vector2 &p_pos);
+	Vector2 get_position() const;
+};
+
+class InputEventMagnifyGesture : public InputEventGesture {
+
+	GDCLASS(InputEventMagnifyGesture, InputEventGesture)
+	real_t factor;
+
+public:
+	void set_factor(real_t p_factor);
+	real_t get_factor() const;
+
+	virtual Ref<InputEvent> xformed_by(const Transform2D &p_xform, const Vector2 &p_local_ofs = Vector2()) const;
+
+	InputEventMagnifyGesture();
+};
+
+class InputEventPanGesture : public InputEventGesture {
+
+	GDCLASS(InputEventPanGesture, InputEventGesture)
+	Vector2 delta;
+
+public:
+	void set_delta(const Vector2 &p_delta);
+	Vector2 get_delta() const;
+
+	virtual Ref<InputEvent> xformed_by(const Transform2D &p_xform, const Vector2 &p_local_ofs = Vector2()) const;
+
+	InputEventPanGesture();
+};
 #endif