Name

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      IMAGESTRIP__DEFINE

Purpose

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      The purpose of this routine is to allow a sequence of images to exist in
      a rwo or strip of images. The object is a compound widget object and is
      a subclassed BASEWIDGET. Buttons at either end of the image strip draw widget
      allow the strip to be "moved" one image at a time. If you hold the buttons down
      and touch the space bar, images can be move very rapidly. See the text program at
      the end of this file for an example.

Authors

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        FANNING SOFTWARE CONSULTING BURRIDGE COMPUTING
        1645 Sheely Drive 18 The Green South
        Fort Collins Warborough, Oxon
        CO 80526 USA OX10 7DN, ENGLAND
        Phone: 970-221-0438 Phone: +44 (0)1865 858279
        E-mail: davidf@dfanning.com E-mail: davidb@burridgecomputing.co.uk

Category

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      Objects.

Syntax

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      theObject = Obj_New("IMAGESTRIP")

Superclasses

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      BASEWIDGET
      WIDGETATOM
      CATATOM
      CATCONTAINER IDLITCOMPONENT
      IDL_CONTAINER

Class Structure

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  class = { IMAGESTRIP, $
            imageContainer: Obj_New(), $ ; An ImageContainer object.
            l_buttonID: Obj_New(), $ ; The left button identifier.
            r_buttonID: Obj_New(), $ ; The right button identifier.
            start_frame: 0L, $ ; The starting frame on the left.
            drawID: Obj_New(), $ ; Draw widget for image display. (X size is xsize*frames, Y size is ysize.)
            pixmap: Obj_New(), $ ; A pixmap for buffering image display.
            xsize: 0L, $ ; Image X size.
            ysize: 0L, $ ; Image Y size.
            frames: 0L, $ ; The number of frames in the strip.
            annotateColor: "", $ ; The annotation color.
            _event_handler:Obj_New(), $ ; The real event handler object(s) for the IMAGESTRIP.
            _event_method_real: "", $ ; The event method assigned by the user to this object widget.
            INHERITS BASEWIDGET $
          }

Event Structure

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  This is the event structure sent from the IMAGESTRIP when someone clicks the mouse
  inside the image strip window..
  event = { IMAGESTRIP_EVENT, $
                ID:Obj_New(), $ ; The widget object that caused the event.
                TOP: Obj_New(), $ ; The object at the top of the object hierarchy.
                HANDLER:Obj_New(), $ ; The event handler object.
                EVENT_NAME: "", $ ; The name of the event, IMAGESTRIP_EVENT.
                NAME: "", $ ; The name of the object.
                SELECTION:Obj_New() $ ; The selected image object in the ImageContainer.
                BUTTON_DOWN: "" ; The button clicked DOWN in draw widget. "LEFT", "MIDDLE", or "RIGHT".
            }

Modification History

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      Written by: David W. Fanning, 21 February 2004.
      Added BUTTON_DOWN field in IMAGESSTRIP_EVENT. 20 Dec 2004. DWF.