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devdraw: Shrinking a window on osx 10.6.7 no longer disables drawing.

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R=rsc
CC=plan9port.codebot
http://codereview.appspot.com/4632051
This commit is contained in:
David Swasey 2011-06-20 14:11:21 -04:00 committed by Russ Cox
parent ce8d6f2465
commit e055ceb20b
1 changed files with 14 additions and 9 deletions
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23
src/cmd/devdraw/osx-screen-carbon.m
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@ -524,8 +524,14 @@ eventhandler(EventHandlerCallRef next, EventRef event, void *arg)
case kEventWindowClosed:
exit(0);
case kEventWindowBoundsChanged:
eresized(0);
case kEventWindowBoundsChanged:;
// We see kEventWindowDrawContent
// if we grow a window but not if we shrink it.
UInt32 flags;
GetEventParameter(event, kEventParamAttributes,
typeUInt32, 0, sizeof flags, 0, &flags);
int new = (flags & kWindowBoundsChangeSizeChanged) != 0;
eresized(new);
break;
case kEventWindowDrawContent:
@ -839,13 +845,12 @@ eresized(int new)
osx.screenimage = m;
osx.screenr = r;
// I'm not 100% sure why this is necessary
// but otherwise some resizes (esp. vertical ones)
// stop updating the screen.
qlock(&osx.flushlock);
QDEndCGContext(GetWindowPort(osx.window), &osx.windowctx);
osx.windowctx = nil;
qunlock(&osx.flushlock);
if(new){
qlock(&osx.flushlock);
QDEndCGContext(GetWindowPort(osx.window), &osx.windowctx);
osx.windowctx = nil;
qunlock(&osx.flushlock);
}
}
void