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GtkScrolledWindow: Allow scrolling without bars

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Add a new policy, GTK_POLICY_EXTERNAL, which hides the scrollbar,
but does not force the scrolled windows size to be determined by
its child. This can be used to keep two scrolled windows in sync,
while sharing a single scrollbar.

https://bugzilla.gnome.org/show_bug.cgi?id=730730
This commit is contained in:
Matthias Clasen
2014-10-04 23:15:04 -04:00
parent 3f4bd447f8
commit 94b680c2cd
2 changed files with 63 additions and 38 deletions
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6
gtk/gtkscrolledwindow.h
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@ -126,6 +126,9 @@ typedef enum
* For example, when all of a #GtkTreeView can not be seen.
* @GTK_POLICY_NEVER: The scrollbar should never appear. In this mode the
* content determines the size.
* @GTK_POLICY_EXTERNAL: Don't show a scrollbar, but don't force the
* size to follow the content. This can be used e.g. to make multiple
* scrolled windows share a scrollbar. Since: 3.16
*
* Determines how the size should be computed to achieve the one of the
* visibility mode for the scrollbars.
@ -134,7 +137,8 @@ typedef enum
{
GTK_POLICY_ALWAYS,
GTK_POLICY_AUTOMATIC,
GTK_POLICY_NEVER
GTK_POLICY_NEVER,
GTK_POLICY_EXTERNAL
} GtkPolicyType;