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viewcmds(3U) InterViews Reference Manual viewcmds(3U)

NAME

CenterCmd, CloseEditorCmd, GravityCmd, GridCmd, GridSpacingCmd, NormSizeCmd, OrientationCmd, RedToFitCmd - commands for modifying editor attributes

SYNOPSIS

#include <Unidraw/Commands/viewcmds.h>

DESCRIPTION

The Unidraw library predefines several commands for altering the attributes of editors and their viewers. CenterCmd centers each of the editor's viewers. CloseEditorCmd closes the editor, removing it from the screen. GravityCmd turns gravity on by activating the editor's GravityVar, if it defines one. GridCmd toggles the visibility of each viewer's grid, while GridSpacingCmd lets the user specify the grid spacing for all grids. Finally, NormSizeCmd sets each viewer's magnification to a factor of one, OrientationCmd toggles each viewer's orientation between landscape mode and portrait mode, and RedToFitCmd changes each viewer's magnification so that its component view is fully visible.

CENTERCMD PUBLIC OPERATIONS

Construct a new CenterCmd.
Execute simply calls CenterOp on each of the editor's viewers.
CenterCmd is not reversible.

CLOSEEDITORCMD PUBLIC OPERATIONS

Construct a new CloseEditorCmd.
Execute calls Close on the global unidraw object with the CloseEditorCmd's editor as its argument. Execute prompts the use to save the component if it does not appear in any other open editors. If no other editors are open at all, Execute creates and executes a QuitCmd.
CloseEditorCmd is not reversible.

GRAVITYCMD PUBLIC OPERATIONS

Construct a new GravityCmd.
Execute calls Activate on the editor's GravityVar (if it defines one) with the inverse of the value returned by GravityVar's IsActive operation.
GravityCmd is not reversible.

GRIDCMD PUBLIC OPERATIONS

Construct a new GridCmd.
Execute calls the Visibility operation on the grid from each of the editor's viewers, supplying the inverse of the value returned by Grid's IsVisible oepation.
GridCmd is not reversible.

GRIDSPACINGCMD PUBLIC OPERATIONS

Construct a new GridSpacingCmd.
Execute prompts the user to specify grid spacing information through a GridDialog. If the user does not cancel the dialog, then Execute will pass the specified grid spacing to a SetSpacing call on each viewer's grid.
GridSpacingCmd is not reversible.

NORMSIZECMD PUBLIC OPERATIONS

Construct a new NormSizeCmd.
Execute simply calls SetMagnification with an argument of 1 on each of the editor's viewers.
NormSizeCmd is not reversible.

ORIENTATIONCMD PUBLIC OPERATIONS

Construct a new OrientationCmd.
Execute switches the orientation of each of the editor's viewers via their SetOrientation operation.
OrientationCmd is not reversible.

REDTOFITCMD PUBLIC OPERATIONS

Construct a new RedToFitCmd.
Execute simply calls ReduceToFit on each of the editor's viewers.
RedToFitCmd is not reversible.

SEE ALSO

BasicDialog(3U), Command(3U), Grid(3U), Unidraw(3U), Viewer(3U), catcmds(3U), globals(3U), statevars(3U)

24 January 1991 Unidraw