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Add offset transform to Control nodes

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This commit is contained in:
Timo Schwarzer 2026-02-15 14:47:13 +01:00
parent bf95b62586
commit c3d96f262f
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GPG key ID: C4062DA320280737
5 changed files with 433 additions and 3 deletions
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68
editor/scene/gui/control_editor_plugin.cpp
View file

@ -1155,11 +1155,79 @@ ControlEditorToolbar *ControlEditorToolbar::singleton = nullptr;
// Editor plugin.
void ControlOffsetTransformPreview::edit(Control *p_control) {
if (p_control == selected_control) {
return;
}
const Callable update_overlays = callable_mp(plugin, &EditorPlugin::update_overlays);
if (selected_control) {
selected_control->disconnect(SceneStringName(draw), update_overlays);
}
selected_control = p_control;
if (selected_control) {
selected_control->connect(SceneStringName(draw), update_overlays);
}
plugin->update_overlays();
}
void ControlOffsetTransformPreview::forward_canvas_draw_over_viewport(Control *p_overlay) const {
if (!selected_control || !selected_control->is_offset_transform_enabled() || selected_control->is_offset_transform_visual_only()) {
return;
}
Point2 top_left = Point2();
Point2 bottom_right = selected_control->get_size();
Point2 top_right = Point2(bottom_right.x, top_left.y);
Point2 bottom_left = Point2(top_left.x, bottom_right.y);
Transform2D control_transform_without_offset = selected_control->get_global_transform() * selected_control->get_offset_transform().affine_inverse();
top_left = control_transform_without_offset.xform(top_left);
bottom_right = control_transform_without_offset.xform(bottom_right);
top_right = control_transform_without_offset.xform(top_right);
bottom_left = control_transform_without_offset.xform(bottom_left);
Transform2D canvas_transform = CanvasItemEditor::get_singleton()->get_canvas_transform();
top_left = canvas_transform.xform(top_left);
bottom_right = canvas_transform.xform(bottom_right);
top_right = canvas_transform.xform(top_right);
bottom_left = canvas_transform.xform(bottom_left);
Color color = Color(0.5, 0.5, 0.5, 0.75);
p_overlay->draw_dashed_line(top_left, top_right, color, 5.0, 4.0);
p_overlay->draw_dashed_line(top_right, bottom_right, color, 5.0, 4.0);
p_overlay->draw_dashed_line(bottom_right, bottom_left, color, 5.0, 4.0);
p_overlay->draw_dashed_line(bottom_left, top_left, color, 5.0, 4.0);
}
ControlOffsetTransformPreview::ControlOffsetTransformPreview(EditorPlugin *p_plugin) {
plugin = p_plugin;
}
void ControlEditorPlugin::edit(Object *p_object) {
offset_transform_preview->edit(Object::cast_to<Control>(p_object));
}
bool ControlEditorPlugin::handles(Object *p_object) const {
return Object::cast_to<Control>(p_object) != nullptr;
}
void ControlEditorPlugin::forward_canvas_draw_over_viewport(Control *p_overlay) {
offset_transform_preview->forward_canvas_draw_over_viewport(p_overlay);
}
ControlEditorPlugin::ControlEditorPlugin() {
toolbar = memnew(ControlEditorToolbar);
toolbar->hide();
add_control_to_container(CONTAINER_CANVAS_EDITOR_MENU, toolbar);
offset_transform_preview = memnew(ControlOffsetTransformPreview(this));
EditorNode::get_singleton()->get_gui_base()->add_child(offset_transform_preview);
Ref<EditorInspectorPluginControl> plugin;
plugin.instantiate();
add_inspector_plugin(plugin);

22
editor/scene/gui/control_editor_plugin.h
View file

@ -244,14 +244,36 @@ public:
ControlEditorToolbar();
};
class ControlOffsetTransformPreview : public Control {
GDCLASS(ControlOffsetTransformPreview, Control);
EditorPlugin *plugin = nullptr;
Control *selected_control = nullptr;
friend class ControlEditorPlugin;
public:
void edit(Control *p_control);
void forward_canvas_draw_over_viewport(Control *p_overlay) const;
ControlOffsetTransformPreview(EditorPlugin *p_plugin);
};
// Editor plugin.
class ControlEditorPlugin : public EditorPlugin {
GDCLASS(ControlEditorPlugin, EditorPlugin);
ControlEditorToolbar *toolbar = nullptr;
ControlOffsetTransformPreview *offset_transform_preview = nullptr;
public:
virtual String get_plugin_name() const override { return "Control"; }
virtual void edit(Object *p_object) override;
virtual bool handles(Object *p_object) const override;
virtual void forward_canvas_draw_over_viewport(Control *p_overlay) override;
ControlEditorPlugin();
};