Class: PluggableDropView

• Inheritance
• Description
• Instance protocol
  • accessing
  • drag & drop
• Examples

Inheritance:

   Object
   |
   +--GraphicsMedium
      |
      +--DisplaySurface
         |
         +--SimpleView
            |
            +--View
               |
               +--PluggableDropView

Package:

stx:libview2

Category:

Views-Basic

Version:

rev: 1.4 date: 2021/02/16 00:51:15

user: cg

file: PluggableDropView.st directory: libview2

module: stx stc-classLibrary: libview2

Author:

cg

Description:

a view which can be configured to handle drops

Instance protocol:

 canDropHandler: aBlockOrValueHolder

Modified (format): / 16-02-2021 / 01:49:47 / cg

 dropHandler: something

 canDrop: dropObjects

invoked to ask if objects can be dropped;
true if no canDropHandler is defined

 dropObjects: dropObjects

invoked to actually drop those objects;
call the defined dropHandler

Examples:

   |top v|

   top := StandardSystemView new.
   top extent:300@300.
   v := PluggableDropView new.
   v origin:10@10 corner:150@150.
   top add:v.

   v canDropHandler:[:dropObjects| true].
   v dropHandler:[:dropObjects| Transcript showCR:e'dropped {dropObjects}'].

   top open