NAME¶
RectComp, RectView, PSRect - rectangle component subject, view, and PostScript
external representation
SYNOPSIS¶
#include <Unidraw/Components/rect.h>
DESCRIPTION¶
RectComp is a GraphicComp that defines a rectangle. It uses an SF_Rect graphic
to store its graphical attributes. RectView is a GraphicView for displaying
the rectangle. PSRect is a PostScriptView that externalizes the subject's
information in PostScript form.
RECTCOMP PUBLIC OPERATIONS¶
- RectComp(SF_Rect* = nil)
- The constructor takes an optional stroked-filled rectangle that defines
the attributes of the rectangle.
- SF_Rect* GetRect()
- Return the SF_Rect graphic that defines the rectangle's attributes.
GetRect is simply a more specific form of the GetGraphic operation.
RECTVIEW PUBLIC OPERATIONS¶
- RectView(RectComp* = nil)
- Create an RectView, optionally supplying the subject.
- virtual void Interpret(Command*)
- RectView interprets AlignToGridCmd to align its lower-left to the
grid.
- virtual Manipulator* CreateManipulator(
- Viewer*, Event&, Transformer*, Tool*
- )
- virtual void InterpretManipulator(Manipulator*)
- RectView redefines its response to manipulation with a GraphicCompTool.
GraphicCompTool will let the user sweep out a rectangle that reflects the
RectComp's size. Creation will be influenced by gravity, if any. RectView
also defines a response to the ReshapeTool, allowing the user to click on
one of its corners to reposition it. The subject is actually replaced (via
ReplaceCmd) with a PolygonComp subject reflecting the repositioned corner.
Repositioning will be influenced by gravity.
- virtual void GetCorners(Coord*, Coord*)
- GetCorners takes two arrays of four Coord values and stores into them the
coordinates of its corners, in canvas coordinates.
- RectComp* GetRectComp()
- Return the subject.
RECTVIEW PROTECTED OPERATIONS¶
- virtual void CreateHandles()
- RectView redefines CreateHandles to use a RubberHandles object with four
handles, one at each corner of the rectangle.
PSRECT PUBLIC OPERATIONS¶
- PSRect(RectComp* = nil)
- Construct a PostScript external representation of the given subject, if
any.
SEE ALSO¶
GraphicComp(3U), GraphicCompTool(3U), GraphicView(3U), Grid(3U),
PolygonComp(3U), PostScriptView(3U), ReshapeTool(3U), align(3U), edit(3U),
polygons(3U)