8 Editor Snip

▼ |  | Framework: Racket GUI Application Framework

1 | Application
2 | Autosave
3 | Canvas
4 | Color Model
5 | Color Prefs
6 | Color
7 | Comment Box
8 | Editor Snip
9 | Editor
10 | Exit
11 | Finder
12 | Frame
13 | Group
14 | GUI Utilities
15 | Handler
16 | Icon
17 | Keymap
18 | Menu
19 | Mode
20 | Number Snip
21 | Panel
22 | Pasteboard
23 | Path Utils
24 | Preferences
25 | Preferences, Textual
26 | Racket
27 | Text
28 | Splash
29 | Test
30 | Version
| Index

On this page:

editor-snip: decorated<%>
get-corner-bitmap
get-color
get-menu
get-position
reset-min-sizes
editor-snip: decorated-mixin
get-corner-bitmap
get-color
get-menu
get-position
editor-snip: decorated%
make-snip
make-editor
copy
editor-snip: decorated-snipclass%
make-snip
read

top← prev up next →

### 8`` Editor Snip

editor-snip:decorated<%> : interface?

implements: | editor-snip%

> ( send an-editor-snip:decorated get-corner-bitmap)
> → ( or/c false/c ( is-a?/c bitmap%))

> Returns a bitmap that is drawn in the upper-right corner of this snip.

> ( send an-editor-snip:decorated get-color)
> → ( or/c string? ( is-a?/c color%))

> Returns the color used to draw the background part of the snip.

> ( send an-editor-snip:decorated get-menu)
> → ( or/c false/c ( is-a?/c popup-menu%))

> Returns a popup menu that is used when clicking on the top part of the snip.

> ( send an-editor-snip:decorated get-position)
> → ( symbols 'top-right 'left-top)

> Returns the location of the image and the clickable region. The symbol 'top-right indicates top portion is clickable and icon on right. The symbol 'left-top means left portion is clickable and icon on top.

> ( send an-editor-snip:decorated reset-min-sizes) → void?

> Sets the minimum sizes based on the result of get-corner-bitmap.

editor-snip:decorated-mixin : ( class? . -> . class?)

argument extends/implements: | editor-snip%

result implements: | editor-snip:decorated<%>

> ( send an-editor-snip:decorated get-corner-bitmap)
> → ( or/c false/c ( is-a?/c bitmap%))

> Returns #f.

> ( send an-editor-snip:decorated get-color)
> → ( or/c string? ( is-a?/c color%))

> Returns

> ( if ( preferences:get 'framework:white-on-black?)
> "white"
> "black")

> ( send an-editor-snip:decorated get-menu)
> → ( or/c false/c ( is-a?/c popup-menu%))

> Returns #f.

> ( send an-editor-snip:decorated get-position)
> → ( symbols 'top-right 'left-top)

> Returns 'top-right.

editor-snip:decorated% : class?
superclass: ( editor-snip:decorated-mixin editor-snip%)

> ( new editor-snip:decorated% ...superclass-args...)
> → ( is-a?/c editor-snip:decorated%)

> Invokes the super constructor with the keyword editor as a call to make-editor.

> ( send an-editor-snip:decorated make-snip)
> → ( is-a?/c editor-snip:decorated%)

> This method should return an instance of the class it is invoked in. If you create a subclass of this class, be sure to override this method and have it create instances of the subclass.

> ( send an-editor-snip:decorated make-editor)
> → ( is-a?/c editor<%>)

> Creates an editor to be used in this snip.

> ( send an-editor-snip:decorated copy)
> → ( is-a?/c editor-snip:decorated%)

> Uses the make-editor and make-snip methods to create a copy of this snip, as follows:
> #lang ( let ([snip (make-snip)]) ( send snip set-editor ( send (get-editor) copy-self)) ( send snip set-style (get-style)) snip)

editor-snip:decorated-snipclass% : class?
superclass: snip-class%

> ( send an-editor-snip:decorated-snipclass make-snip stream-in)
> → -editor-snip:decorated<%>
> stream-in : ( is-a?/c editor-stream-in%)

> Returns an instance of editor-snip:decorated%.

> ( send an-editor-snip:decorated-snipclass read stream-in)
> → editor-snip:decorated<%>
> stream-in : ( is-a?/c editor-stream-in%)

> Calls make-snip to get an object and then invokes its editor<%>’s read-from-file method in order to read a snip from stream-in, eg:

> ( let ([snip (make-snip stream-in)])
> ( send ( send snip get-editor) read-from-file stream-in #f)
> snip)

top← prev up next →