X11PCDLImage.h

Classes

X11PCDLImage -- Class to store command for displaying an image on an X11PixelCanvas. (full description)

class X11PCDLImage : public X11PCDisplayListObject

Interface

Public Members
X11PCDLImage()
X11PCDLImage(XImage * xim, Int x, Int y)
virtual void translate(Int xt, Int yt)
virtual void draw(::XDisplay * display, Drawable d, GC gc, Int xt, Int yt)
virtual Char optType() const
virtual ~X11PCDLImage()

Description

Prerequisite

Etymology

X11PCDLImage : X11PixelCanvas Display List - Image.

Synopsis

This class is designed for use with the X11PixelCanvas' caching mechanism.

X11PCDLImage stores a request to draw an image in the form of an XImage structure.

Note: Presently the image stored is first clipped to the window it was first drawn into.

Motivation

Needed to be able to put all output graphics commands in a display list for fast and convenient handling.

Member Description

X11PCDLImage()

Default Constructor Required

X11PCDLImage(XImage * xim, Int x, Int y)

User Constructor

virtual void translate(Int xt, Int yt)

translate the image

virtual void draw(::XDisplay * display, Drawable d, GC gc, Int xt, Int yt)

draw function

virtual Char optType() const

For caching optimization

virtual ~X11PCDLImage()

Destructor