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/**
* @file llresizehandle.h
* @brief LLResizeHandle base class
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_RESIZEHANDLE_H
#define LL_RESIZEHANDLE_H
#include "stdtypes.h"
#include "llview.h"
#include "llcoord.h"
class LLResizeHandle : public LLView
{
public:
enum ECorner { LEFT_TOP, LEFT_BOTTOM, RIGHT_TOP, RIGHT_BOTTOM };
struct Params : public LLInitParam::Block<Params, LLView::Params>
{
Mandatory<ECorner> corner;
Optional<S32> min_width;
Optional<S32> min_height;
Params();
};
~LLResizeHandle();
protected:
LLResizeHandle(const LLResizeHandle::Params&);
friend class LLUICtrlFactory;
public:
void draw() override;
bool handleHover(S32 x, S32 y, MASK mask) override;
bool handleMouseDown(S32 x, S32 y, MASK mask) override;
bool handleMouseUp(S32 x, S32 y, MASK mask) override;
void setResizeLimits( S32 min_width, S32 min_height ) { mMinWidth = min_width; mMinHeight = min_height; }
private:
bool pointInHandle( S32 x, S32 y );
S32 mDragLastScreenX;
S32 mDragLastScreenY;
S32 mLastMouseScreenX;
S32 mLastMouseScreenY;
LLCoordGL mLastMouseDir;
LLPointer<LLUIImage> mImage;
S32 mMinWidth;
S32 mMinHeight;
const ECorner mCorner;
};
constexpr S32 RESIZE_HANDLE_HEIGHT = 11;
constexpr S32 RESIZE_HANDLE_WIDTH = 11;
#endif // LL_RESIZEHANDLE_H
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