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Add some more documentation about GDK_SCROLL_SMOOTH

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This commit is contained in:
Matthias Clasen 2012-04-30 22:28:08 -04:00
parent 333a5b4307
commit 3be5c09a90
2 changed files with 11 additions and 2 deletions
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5
README.in
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@ -96,7 +96,10 @@ Release notes for 3.4
* Scroll events have been separated from button events, and smooth
scrolling has been added with a separate event mask. Widgets now
need to have either GDK_SCROLL_MASK or GDK_SMOOTH_SCROLL_MASK in
their event mask to receive scroll events.
their event mask to receive scroll events. In addition, the
GdkScrollDirection enumeration has gained a new member,
GDK_SCROLL_SMOOTH, so switch statements will have to be amended
to cover this case.
* GTK+ now uses <Primary> instead of <Control> in keyboard accelerators,
for improved cross-platform handling. This should not affect

8
gdk/gdkevents.h
View File

@ -736,7 +736,8 @@ struct _GdkEventTouch
* the modifier keys (e.g. Control, Shift and Alt) and the pointer
* buttons. See #GdkModifierType.
* @direction: the direction to scroll to (one of %GDK_SCROLL_UP,
* %GDK_SCROLL_DOWN, %GDK_SCROLL_LEFT and %GDK_SCROLL_RIGHT).
* %GDK_SCROLL_DOWN, %GDK_SCROLL_LEFT, %GDK_SCROLL_RIGHT or
* %GDK_SCROLL_SMOOTH).
* @device: the device where the event originated.
* @x_root: the x coordinate of the pointer relative to the root of the
* screen.
@ -746,6 +747,11 @@ struct _GdkEventTouch
* Generated from button presses for the buttons 4 to 7. Wheel mice are
* usually configured to generate button press events for buttons 4 and 5
* when the wheel is turned.
*
* Some GDK backends can also generate 'smooth' scroll events, which
* can be recognized by the %GDK_SCROLL_SMOOTH scroll direction. For
* these, the scroll deltas can be obtained with
* gdk_event_get_scroll_deltas().
*/
struct _GdkEventScroll
{