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Native pan and zoom for macOS

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This commit is contained in:
Bernhard Liebl
2017-11-01 21:49:39 +01:00
parent 5ff84070ca
commit 80ad8afc85
21 changed files with 549 additions and 133 deletions
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22
scene/gui/graph_edit.cpp
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@@ -964,6 +964,19 @@ void GraphEdit::_gui_input(const Ref<InputEvent> &p_ev) {
emit_signal("delete_nodes_request");
accept_event();
}
Ref<InputEventMagnifyGesture> magnify_gesture = p_ev;
if (magnify_gesture.is_valid()) {
set_zoom_custom(zoom * magnify_gesture->get_factor(), magnify_gesture->get_position());
}
Ref<InputEventPanGesture> pan_gesture = p_ev;
if (pan_gesture.is_valid()) {
h_scroll->set_value(h_scroll->get_value() + h_scroll->get_page() * pan_gesture->get_delta().x / 8);
v_scroll->set_value(v_scroll->get_value() + v_scroll->get_page() * pan_gesture->get_delta().y / 8);
}
}
void GraphEdit::clear_connections() {
@@ -975,6 +988,11 @@ void GraphEdit::clear_connections() {
void GraphEdit::set_zoom(float p_zoom) {
set_zoom_custom(p_zoom, get_size() / 2);
}
void GraphEdit::set_zoom_custom(float p_zoom, const Vector2 &p_center) {
p_zoom = CLAMP(p_zoom, MIN_ZOOM, MAX_ZOOM);
if (zoom == p_zoom)
return;
@@ -982,7 +1000,7 @@ void GraphEdit::set_zoom(float p_zoom) {
zoom_minus->set_disabled(zoom == MIN_ZOOM);
zoom_plus->set_disabled(zoom == MAX_ZOOM);
Vector2 sbofs = (Vector2(h_scroll->get_value(), v_scroll->get_value()) + get_size() / 2) / zoom;
Vector2 sbofs = (Vector2(h_scroll->get_value(), v_scroll->get_value()) + p_center) / zoom;
zoom = p_zoom;
top_layer->update();
@@ -992,7 +1010,7 @@ void GraphEdit::set_zoom(float p_zoom) {
if (is_visible_in_tree()) {
Vector2 ofs = sbofs * zoom - get_size() / 2;
Vector2 ofs = sbofs * zoom - p_center;
h_scroll->set_value(ofs.x);
v_scroll->set_value(ofs.y);
}