lldndbutton.h
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- /**
- * @file lldndbutton.h
- * @brief Declaration of the drag-n-drop button.
- *
- * $LicenseInfo:firstyear=2009&license=viewergpl$
- *
- * Copyright (c) 2009-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
- #ifndef LL_LLDNDBUTTON_H
- #define LL_LLDNDBUTTON_H
- #include "llbutton.h"
- /**
- * Class representing a button which can handle Drag-And-Drop event.
- *
- * LLDragAndDropButton does not contain any logic to handle Drag-And-Drop itself.
- * Instead it provides drag_drop_handler_t which can be set to the button.
- * Then each Drag-And-Drop will be delegated to this handler without any pre/post processing.
- *
- * All xml parameters are the same as LLButton has.
- *
- * @see LLLandmarksPanel for example of usage of this class.
- */
- class LLDragAndDropButton : public LLButton
- {
- public:
- struct Params : public LLInitParam::Block<Params, LLButton::Params>
- {
- Params();
- };
- LLDragAndDropButton(Params& params);
- typedef boost::function<bool (
- S32 /*x*/, S32 /*y*/, MASK /*mask*/, BOOL /*drop*/,
- EDragAndDropType /*cargo_type*/,
- void* /*cargo_data*/,
- EAcceptance* /*accept*/,
- std::string& /*tooltip_msg*/)> drag_drop_handler_t;
- /**
- * Sets a handler which should process Drag-And-Drop.
- */
- void setDragAndDropHandler(drag_drop_handler_t handler) { mDragDropHandler = handler; }
- /**
- * Process Drag-And-Drop by delegating the event to drag_drop_handler_t.
- *
- * @return BOOL - value returned by drag_drop_handler_t if it is set, FALSE otherwise.
- */
- /*virtual*/ BOOL handleDragAndDrop(S32 x, S32 y, MASK mask, BOOL drop,
- EDragAndDropType cargo_type,
- void* cargo_data,
- EAcceptance* accept,
- std::string& tooltip_msg);
- private:
- drag_drop_handler_t mDragDropHandler;
- };
- #endif // LL_LLDNDBUTTON_H