Inherits blender::ui::TreeViewItemDropTarget.

Public Member Functions
	LayerNodeDropTarget (AbstractTreeViewItem &item, TreeNode &drop_tree_node, DropBehavior behavior)

bool	can_drop (const wmDrag &drag, const char **) const override

std::string	drop_tooltip (const DragInfo &drag_info) const override

bool	on_drop (bContext *C, const DragInfo &drag_info) const override

Public Member Functions inherited from blender::ui::TreeViewItemDropTarget
	TreeViewItemDropTarget (AbstractTreeViewItem &view_item, DropBehavior behavior=DropBehavior::Insert)

std::optional< DropLocation >	choose_drop_location (const ARegion &region, const wmEvent &event) const override

template<class ViewType >
ViewType &	get_view () const

Public Member Functions inherited from blender::ui::DropTargetInterface
	DropTargetInterface ()=default

virtual	~DropTargetInterface ()=default

Additional Inherited Members
Protected Attributes inherited from blender::ui::TreeViewItemDropTarget
AbstractTreeViewItem &	view_item_

const DropBehavior	behavior_

Detailed Description

Definition at line 45 of file interface_template_grease_pencil_layer_tree.cc.

Constructor & Destructor Documentation

◆ LayerNodeDropTarget()

blender::ui::greasepencil::LayerNodeDropTarget::LayerNodeDropTarget	(	AbstractTreeViewItem &	item,
		TreeNode &	drop_tree_node,
		DropBehavior	behavior )

inline

Definition at line 49 of file interface_template_grease_pencil_layer_tree.cc.

Member Function Documentation

◆ can_drop()

bool blender::ui::greasepencil::LayerNodeDropTarget::can_drop	(	const wmDrag &	drag,
		const char **	r_disabled_hint ) const

inlineoverridevirtual

Check if the data dragged with drag can be dropped on the element this drop target is for.

Parameters

r_disabled_hint Return a static string to display to the user, explaining why dropping isn't possible on this UI element. Shouldn't be done too aggressively, e.g. don't set this if the drag-type can't be dropped here; only if it can but there's another reason it can't be dropped. Can assume this is a non-null pointer.

Implements blender::ui::DropTargetInterface.

Definition at line 54 of file interface_template_grease_pencil_layer_tree.cc.

References ELEM, wmDragGreasePencilLayer::node, wmDrag::poin, wmDrag::type, WM_DRAG_GREASE_PENCIL_GROUP, and WM_DRAG_GREASE_PENCIL_LAYER.

◆ drop_tooltip()

std::string blender::ui::greasepencil::LayerNodeDropTarget::drop_tooltip ( const DragInfo & drag ) const

inlineoverridevirtual

Custom text to display when dragging over the element using this drop target. Should explain what happens when dropping the data onto this UI element. Will only be used if DropTargetInterface::can_drop() returns true, so the implementing override doesn't have to check that again. The returned value must be a translated string.

Implements blender::ui::DropTargetInterface.

Definition at line 73 of file interface_template_grease_pencil_layer_tree.cc.

References blender::ui::After, blender::ui::Before, BLI_assert_unreachable, blender::ui::DragInfo::drag_data, blender::ui::DragInfo::drop_location, blender::ui::Into, blender::bke::greasepencil::TreeNode::is_layer(), GreasePencilLayerTreeNode::name, wmDragGreasePencilLayer::node, wmDrag::poin, and TIP_.