02be5353fd
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12772 a95241bf-73f2-0310-859d-f6bbb57e9c96
77 lines
2.7 KiB
C++
77 lines
2.7 KiB
C++
/*
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Open Tracker License
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Terms and Conditions
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Copyright (c) 1991-2000, Be Incorporated. All rights reserved.
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do
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so, subject to the following conditions:
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The above copyright notice and this permission notice applies to all licensees
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and shall be included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF TITLE, MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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BE INCORPORATED BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF, OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of Be Incorporated shall not be
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used in advertising or otherwise to promote the sale, use or other dealings in
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this Software without prior written authorization from Be Incorporated.
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Tracker(TM), Be(R), BeOS(R), and BeIA(TM) are trademarks or registered trademarks
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of Be Incorporated in the United States and other countries. Other brand product
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names are registered trademarks or trademarks of their respective holders.
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All rights reserved.
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*/
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#ifndef __SLOW_MENU__
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#define __SLOW_MENU__
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#include <Menu.h>
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#include <MenuItem.h>
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#include <Debug.h>
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// SlowMenu is a convenience class that makes it easier to
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// use the AddDynamicItem callback to implement a menu that can
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// checks periodically between creating new items and quits
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// early if needed
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namespace BPrivate {
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class BSlowMenu : public BMenu {
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public:
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BSlowMenu(const char *title, menu_layout layout = B_ITEMS_IN_COLUMN);
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protected:
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virtual bool StartBuildingItemList();
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// set up state to start building the item list
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// returns false if setup failed
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virtual bool AddNextItem() = 0;
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// returns false if done
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virtual void DoneBuildingItemList() = 0;
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// default version adds items from itemList to menu and deletes
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// the list; override to sort items first, etc.
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virtual void ClearMenuBuildingState() = 0;
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protected:
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virtual bool AddDynamicItem(add_state state);
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// this is the callback from BMenu, you shouldn't need to override this
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bool fMenuBuilt;
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};
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} // namespace BPrivate
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using namespace BPrivate;
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#endif /* __SLOW_MENU__ */
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