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List: kde-kimageshop
Subject: persistent selections
From: "Casper Boemann" <cbr () boemann ! dk>
Date: 2005-04-28 12:04:43
Message-ID: 048a01c54bea$77117370$1c90a8c0 () FKIBM13045
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This is a heads up for an upcoming change.
I have implemented persistent selections in my private repository:
- there is always a KisSelection (though created on first reference) and it never \
changes only its contents
- implemented "deselect" as setting hasSelection = false
- implemented "reselect" as setting hasSelection=true
- calling paintdev->selection() sets hasSelection=true and also creates the \
KisSelection the first time it's called
- removeSelection() and setSelection() has gone, but partly replaced by deselect()
- "select all" is like any other kind of selecting
- "invert" inverts entire selection not just the extent of already selected.
Not yet implemented is:
- if deselected when selecting then clear selection first. Otherwise add to \
selection
- selectedRect() return extent of selection unioned with the extent of the parent \
paintdev if defaultpixel of selection != 0
- "select all" should use clear and defaultPixel, but that requires that \
selectedRect works.
Finally something to think about:
When infinity has been selected (as selecting a little rect and then choosing \
invert). How do we convey this to every "user" of selection. I have proposed changing \
selectedRect to take the parent paintDev into account, but could we think of cases \
where this doesn't hold. And if so what should we do?
best regards / venlig hilsen
Casper Boemann
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<DIV><FONT face=Arial size=2>This is a heads up for an upcoming
change.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have implemented persistent selections in my
private repository:</FONT></DIV>
<DIV><FONT face=Arial size=2> - there is always a KisSelection (though
created on first reference) and it never changes only its contents<BR> -
implemented "deselect" as setting hasSelection = false</FONT></DIV>
<DIV><FONT face=Arial size=2> - implemented "reselect" as setting
hasSelection=true<BR> - calling paintdev->selection() sets
hasSelection=true and also creates the KisSelection the first time it's
called<BR></FONT><FONT face=Arial size=2> - removeSelection() and
setSelection() has gone, but partly replaced by deselect()<BR> -
"select all" is like any other kind of selecting<BR> - "invert" inverts
entire selection not just the extent of already selected.<BR></DIV></FONT>
<DIV><FONT face=Arial size=2>Not yet implemented is:</FONT></DIV>
<DIV><FONT face=Arial size=2> - if deselected when selecting then clear
selection first. Otherwise add to selection<BR> - selectedRect() return
extent of selection unioned with the extent of the parent paintdev if
defaultpixel of selection != 0<BR></FONT><FONT face=Arial size=2> -
"select all" should use clear and defaultPixel, but that requires that
selectedRect works.</DIV></FONT>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Finally something to think about:</FONT></DIV>
<DIV><FONT face=Arial size=2>When infinity has been selected (as selecting a
little rect and then choosing invert). How do we convey this to every "user" of
selection. I have proposed changing selectedRect to take the parent paintDev
into account, but could we think of cases where this doesn't hold. And if so
what should we do?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>best regards / venlig hilsen<BR>Casper
Boemann</FONT></DIV></BODY></HTML>
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