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Added some notes about the facilities and ancestry of this class. Also modified it so that it

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will scroll automagically if, even after doing its damnedest to make it fit, it still doesn't.  This
will only happen if the menu (or submenu) is so tall that the it stretches from the bottom of the 
bounds it's using, and extends past the top of the bounds.


git-svn-id: svn+ssh://src.earth.threerings.net/nenya/trunk@526 ed5b42cb-e716-0410-a449-f6a68f950b19
This commit is contained in:
Nathan Curtis
2008-06-05 21:31:32 +00:00
parent 89fef8992b
commit 97c5206983
1 changed files with 28 additions and 6 deletions
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src/as/com/threerings/flex/CommandMenu.as
+28 -6
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@@ -46,10 +46,6 @@ import mx.events.MenuEvent;
import mx.managers.PopUpManager;
import mx.utils.ObjectUtil;
import flexlib.controls.ScrollableArrowMenu;
import com.threerings.util.CommandEvent;
import com.threerings.flex.PopUpUtil;
@@ -78,6 +74,15 @@ use namespace mx_internal;
* ];
*
* See "Defining menu structure and data" in the Flex manual for the full list.
*
* CommandMenu is scrollable. This can be forced by setting verticalScrollPolicy to
* ScrollPolicy.AUTO or ScrollPolicy.ON and setting the maxHeight. Also, if the scrolling isn't
* forced on, but the menu does not fit within the vertical bounds given (either the stage size by
* default, or the height of the rectangle given in setBounds()), scrolling will be turned on
* so that none of the content is lost.
*
* Note: we don't extend flexlib's ScrollableMenu (or its sub-class ScrollableArrowMenu) because it
* does some weird stuff in measure() that forces some of our menus down to a very small height...
*/
public class CommandMenu extends Menu
{
@@ -216,7 +221,16 @@ public class CommandMenu extends Menu
y = y - getExplicitOrMeasuredHeight();
}
PopUpUtil.fitInRect(this, _fitting || screen);
var fitting :Rectangle = _fitting || screen;
PopUpUtil.fitInRect(this, fitting);
// if after fitting as best we can, the menu is outside of the declared bounds, we force
// scrolling and set the max height
if (y < fitting.y) {
verticalScrollPolicy = ScrollPolicy.AUTO;
maxHeight = fitting.height;
y = fitting.y;
}
}
/**
@@ -339,7 +353,15 @@ public class CommandMenu extends Menu
submenu.y = rowLoc.y - submenu.getExplicitOrMeasuredHeight() + displayObj.height;
}
PopUpUtil.fitInRect(submenu, _fitting || screen);
var fitting :Rectangle = _fitting || screen;
PopUpUtil.fitInRect(submenu, fitting);
// if after fitting as best we can, the menu is outside of the declared bounds, we force
// scrolling and set the max height
if (submenu.y < fitting.y) {
submenu.verticalScrollPolicy = ScrollPolicy.AUTO;
submenu.maxHeight = fitting.height;
submenu.y = fitting.y;
}
}
override protected function measure () :void