RE: Clipboard... always clipboard

From: [at]} <frei{>
Date: Wed, 13 Nov 2002 11:18:06 +0100

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Content-type: text/plain

Hector,

as far as we can guess from your description, you simply have to implement
your own PasteGuard and use it in your "Paste" menu entry:

MODULE YourView;
...
  PROCEDURE PasteGuard (VAR par: Dialog. Par);
  BEGIN
    par.disabled := my paste buffer is empty
  END PasteGuard;
...
END YourView.

MENU "YourMenu" ("YourView.View")
...
  "Paste" "" "YourView.Paste" "YourView.PasteGuard"
...
END

Some aspects of this are explained in the BlackBox Help section "Component
Software: A Case Study Using BlackBox Components" Chapter 4: Forms and
Chapter 6: View Construction. Please have a look at Help->Contents.
Additionally, it may help to browse through the different "Overview by
Example" programs that can be found under Help->Examples.

Cheers,
Marc
Oberon microsystems, Inc.



-----Original Message-----
From: Hector [mailto:460853{([at]})nowhere.xy
Sent: Montag, 11. November 2002 15:29
To: Circulo de BlackBox
Cc: BorrajaX{([at]})nowhere.xy
Subject: Clipboard... always clipboard


Thank you for your answer, Renee, but I’m afraid I haven’t explained myself
very well, becasuse it isn’t what I was looking for. I’m afraid you have
thought that I’m working with a Text View, and what I copy and paste are
characters, but it isn’t that. I’m working with geometric figures.

So, I don’t want to link the HostCmds. PasteGuard to my Edit menu. I want to
be able to "transform" that PasteGuard for recognising when a figure has
been copied to my clipboard (and I said my clipboard, because I have
implemented it in my Views module). I mean, I don’t use any System
clipboard or something like that (anyway, I don’t know if I could use any)
because I made one on my own.

I have decided that, at least, I’d like to enable the Paste option. I don’t
mind if it is activated even when nothing is in the clipboard, because the
big problem I have now is that if I open the BlackBox, and I start working
with my figures, the Paste option is always disabled. I have discovered that
the only way to activate it is writing something in the Log window,
selecting it, and copying it. Doing that, the “Paste” option becomes active,
so I can copy and paste my figures perfectly. But if I don’t do that trick,
I can copy my figures, but I can’t paste them. But, as I said, if I copy a
piece (I don’t mind what) of text, the paste option becomes active, and I
can copy and paste every figure I want. What do I have to do?. Do I have to
implement my own Edit menu?. Do I have to re-write the HostCmds.PasteGuard
method?. I tried to do something like:

IMPORT HostCmds, … ;

PROCEDURE PasteGuard (VAR par: Dialog. Par);
BEGÍN
         par. disabled := FALSE;
END PasteGuard;

Hoping that doing that, the “Paste” option would become always active, but
it didn’t work.


Thank you in advance, HECTOR.

PS:
Could anybody write something easy to answer??. I am feeling very badly
because I can’t answer any of the expounded questions I receipt in my mail,
so, the only thing I do is asking and asking.

--------------------------------------------

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Received on Wed Nov 13 2002 - 11:18:06 UTC