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write some code to limit pane handle positions on OS X.

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So far untested, and uncompiled
This commit is contained in:
Paul Davis 2016-06-13 09:10:36 -04:00
parent 690cc23ed2
commit ceb0bce971
1 changed files with 40 additions and 0 deletions
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40
libs/gtkmm2ext/pane.cc
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@ -418,6 +418,46 @@ Pane::set_divider (Dividers::size_type div, float fract)
fract = max (0.0f, min (1.0f, fract));
#ifdef __APPLE__
/* On Quartz, if the pane handle (divider) gets to
be adjacent to the window edge, you can no longer grab it:
any attempt to do so is interpreted by the Quartz window
manager ("Finder") as a resize drag on the window edge.
*/
if (horizontal) {
if (div == dividers.size() - 1) {
if (get_allocation().get_width() * (1.0 - fract) < (divider_width*2)) {
/* too close to right edge */
return;
}
}
if (div == dividers.size() - 1) {
if (get_allocation().get_width() * fract < (divider_width*2)) {
/* too close to left edge */
return;
}
}
} else {
if (div == dividers.size() - 1) {
if (get_allocation().get_height() * (1.0 - fract) < (divider_width*2)) {
/* too close to bottom */
return;
}
}
if (div == dividers.size() - 1) {
if (get_allocation().get_width() * fract < (divider_width*2)) {
/* too close to top */
return;
}
}
}
#endif
if (fract != (*d)->fract) {
(*d)->fract = fract;
/* our size hasn't changed, but our internal allocations have */