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- Window pane example
- ===================
-
- A pane is a window which is 'fixed' to
- another window - which I shall call its
- 'parent' and which Acorn rather unhelpfully
- calls a 'tool' window.
-
- The text you are reading now is appearing
- in the pane. Notice that the pane has a
- vertical scroll bar which you can use to
- view the entire text. The pane's vertical
- work area (and hence the size of the scroll
- bar) has been adjusted to the size of the
- text file.
-
- Although the pane has a title bar, it is
- not moveable. Nor is there any means of
- adjusting its size.
-
- The parent window (grey) also has a title
- bar, including close and back icons, but no
- scroll bars. If you move the parent window
- by dragging its title bar, the pane is
- continuously redrawn in its correct
- position.
-
- The combined window behaves as you would
- expect in relation to other windows. Try
- clicking on the back icon to place it at
- the bottom of the window stack. Providing
- you can still see part of the title bar,
- you can now move it without altering its
- position in the stack by dragging its title
- bar with Adjust instead of Select.
- Clicking Select on the title bar brings it
- to the top again.
-
- If you close the parent window, the pane is
- closed too. (Both windows are reopened if
- you click select on the icon bar icon).
-
- At the top right of the pane is a writable
- icon. Notice that if you click select in
- the writable area the parent gains the
- input focus (its title bar becomes cream).
-