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