Class TUndoExplodeScreenObject

Unit

UndoItemsScreenObjects

Declaration

type TUndoExplodeScreenObject = class(TCustomUndoDivideScreenObject)

Description

TUndoChangeSelection is used to change or restore which TScreenObjects or vertices in an individual TScreenObject are selected.

To use, Create a TUndoChangeSelection, change the TScreenObjects that are selected, and call SetPostSelection. Then Undo and Redo can be used to restore or redo the changes in what is selected.

      UndoChangeSelection := TUndoChangeSelection.Create;
      try
        // Change the selected TScreenObjects here.
        UndoChangeSelection.SetPostSelection;
        if UndoChangeSelection.SelectionChanged then
        begin
          frmGoPhast.UndoStack.Submit(UndoChangeSelection);
        end
        else
        begin
          UndoChangeSelection.Free;
        end;
      except
        UndoChangeSelection.Free;
        raise;
      end;
    

Hierarchy

• TObject
• TUndoItem
• TCustomUndo
• TCustomUpdateScreenObjectDisplayUndo
• TUndoChangeSelection
• TCustomImportMultipleScreenObjects
• TCustomUndoDivideScreenObject
• TUndoExplodeScreenObject

Overview

Methods

	procedure DeleteAllButFirstSection;
	function Description: string; override;
	function ShouldDivideScreenScreenObject( AScreenObject: TScreenObject): boolean; override;
	constructor Create;
	procedure Redo; override;

Description

Methods

	procedure DeleteAllButFirstSection;

	function Description: string; override;
Description describes what this TUndoExplodeScreenObject does. It is used in menu captions and hints.

	function ShouldDivideScreenScreenObject( AScreenObject: TScreenObject): boolean; override;

	constructor Create;

	procedure Redo; override;