diff options
Diffstat (limited to 'doc/classes/UndoRedo.xml')
| -rw-r--r-- | doc/classes/UndoRedo.xml | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/doc/classes/UndoRedo.xml b/doc/classes/UndoRedo.xml index 0ea5c6e005..8d98bcfdb0 100644 --- a/doc/classes/UndoRedo.xml +++ b/doc/classes/UndoRedo.xml @@ -8,22 +8,22 @@ Common behavior is to create an action, then add do/undo calls to functions or property changes, then committing the action. Here's an example on how to add an action to Godot editor's own 'undoredo': [codeblock] - var undoredo = get_undo_redo() # method of EditorPlugin + var undo_redo = get_undo_redo() # Method of EditorPlugin. func do_something(): - pass # put your code here + pass # Put your code here. func undo_something(): - pass # put here the code that reverts what's done by "do_something()" + pass # Put here the code that reverts what's done by "do_something()". func _on_MyButton_pressed(): var node = get_node("MyNode2D") - undoredo.create_action("Move the node") - undoredo.add_do_method(self, "do_something") - undoredo.add_undo_method(self, "undo_something") - undoredo.add_do_property(node, "position", Vector2(100,100)) - undoredo.add_undo_property(node, "position", node.position) - undoredo.commit_action() + undo_redo.create_action("Move the node") + undo_redo.add_do_method(self, "do_something") + undo_redo.add_undo_method(self, "undo_something") + undo_redo.add_do_property(node, "position", Vector2(100,100)) + undo_redo.add_undo_property(node, "position", node.position) + undo_redo.commit_action() [/codeblock] [method create_action], [method add_do_method], [method add_undo_method], [method add_do_property], [method add_undo_property], and [method commit_action] should be called one after the other, like in the example. Not doing so could lead to crashes. If you don't need to register a method you can leave [method add_do_method] and [method add_undo_method] out, and so it goes for properties. You can register more than one method/property. @@ -102,8 +102,11 @@ <method name="clear_history"> <return type="void"> </return> + <argument index="0" name="increase_version" type="bool" default="true"> + </argument> <description> Clear the undo/redo history and associated references. + Passing [code]false[/code] to [code]increase_version[/code] will prevent the version number to be increased from this. </description> </method> <method name="commit_action"> @@ -122,6 +125,7 @@ </argument> <description> Create a new action. After this is called, do all your calls to [method add_do_method], [method add_undo_method], [method add_do_property], and [method add_undo_property], then commit the action with [method commit_action]. + The way actions are merged is dictated by the [code]merge_mode[/code] argument. See [enum MergeMode] for details. </description> </method> <method name="get_current_action_name" qualifiers="const"> @@ -156,10 +160,13 @@ </methods> <constants> <constant name="MERGE_DISABLE" value="0" enum="MergeMode"> + Makes [code]do[/code]/[code]undo[/code] operations stay in separate actions. </constant> <constant name="MERGE_ENDS" value="1" enum="MergeMode"> + Makes so that the action's [code]do[/code] operation is from the first action created and the [code]undo[/code] operation is from the last subsequent action with the same name. </constant> <constant name="MERGE_ALL" value="2" enum="MergeMode"> + Makes subsequent actions with the same name be merged into one. </constant> </constants> </class> |