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edit(3U) InterViews Reference Manual edit(3U)

ConnectCmd, CopyCmd, CutCmd, DeleteCmd, DupCmd, MobilityCmd, PasteCmd, RedoCmd, ReplaceCmd, SlctAllCmd, UndoCmd - editing commands

#include <Unidraw/Commands/edit.h>

The Unidraw library defines several commands that offer common component editing functionality. ConnectCmd is a non-interpretive command that connects two connectors. CopyCmd copies selected components onto its clipboard (if it defines one) or onto the global clipboard. CutCmd, DeleteCmd, DupCmd, and PasteCmd are purely interpretive commands that are always interpreted by their editor's component. MobilityCmd gives selected components the opportunity to set their mobility based on the value it provides. UndoCmd and RedoCmd are non-interpretive commands that simply undo and redo the last command that affected their editor's component. ReplaceCmd replaces selected components with the component it stores. Finally, SlctAllCmd is a non-interpretive command that selects all the components displayed in its editor.

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The ConnectCmd constructor optionally takes two connectors as parameters, the source and the target. When executed, it will call Connect on source with target as its argument. It will also set the source's mobility to floating.
Return the connectors supplied in the constructor.

Create a CopyCmd instance, optionally specifying a clipboard in which to store copied components.
Execute does nothing if no components are selected. Otherwise, Execute places a copy of the selected components onto the CopyCmd's clipboard if is non-nil or else onto the global clipboard (obtained from the catalog).
CopyCmd is not reversible.

Create a CutCmd instance, optionally specifying a clipboard in which to store the components that were cut.
CutCmd redefines these operations to let the editor's component interpret it. Execute will set the value of the _executed protected member variable to true as a side effect. Similarly, Unexecute will reset the value to false as a side effect.

Create a DeleteCmd instance, optionally specifying a clipboard in which to store the components that were deleted.
DeleteCmd redefines these operations to let the editor's component interpret it. Execute will set the value of the _executed protected member variable to true as a side effect. Similarly, Unexecute will reset the value to false as a side effect.

Create a DupCmd instance, optionally specifying a clipboard in which to store the components that were duplicated.
DupCmd redefines these operations to let the editor's component interpret it. Execute will set the value of the _executed protected member variable to true as a side effect. Similarly, Unexecute will reset the value to false as a side effect.

Create a MobilityCmd instance, optionally specifying the mobility that interpreting components may use.
Return the mobility specified in the constructor.

Create a PasteCmd instance, optionally specifying a clipboard in which to store the components that will be pasted.
PasteCmd redefines these operations to let the editor's component interpret it. Execute will set the value of the _executed protected member variable to true as a side effect. Similarly, Unexecute will reset the value to false as a side effect.
PasteCmd is reversible if either its clipboard or the global clipboard is non-empty.

Construct a new RedoCmd.
RedoCmd is not reversible.

Create a new ReplaceCmd, optionally supplying the GraphicComp that will replace those that are selected.
Return the replacement GraphicComp supplied in the constructor.

Construct a new SlctAllCmd.
SlctAllCmd is not reversible.

Construct a new UndoCmd.
UndoCmd is not reversible.

Catalog(3U), Clipboard(3U), Command(3U), Connector(3U), GraphicComp(3U), globals(3U)

24 January 1991 Unidraw