lldraghandle.h
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- /**
- * @file lldraghandle.h
- * @brief LLDragHandle base class
- *
- * $LicenseInfo:firstyear=2001&license=viewergpl$
- *
- * Copyright (c) 2001-2010, 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.
- * $/LicenseInfo$
- */
- // A widget for dragging a view around the screen using the mouse.
- #ifndef LL_DRAGHANDLE_H
- #define LL_DRAGHANDLE_H
- #include "llview.h"
- #include "v4color.h"
- #include "llrect.h"
- #include "llcoord.h"
- class LLTextBox;
- class LLDragHandle : public LLView
- {
- public:
- struct Params
- : public LLInitParam::Block<Params, LLView::Params>
- {
- Optional<std::string> label;
- Optional<LLUIColor> drag_highlight_color;
- Optional<LLUIColor> drag_shadow_color;
-
- Params()
- : label("label"),
- drag_highlight_color("drag_highlight_color", LLUIColorTable::instance().getColor("DefaultHighlightLight")),
- drag_shadow_color("drag_shadow_color", LLUIColorTable::instance().getColor("DefaultShadowDark"))
- {
- mouse_opaque(true);
- follows.flags(FOLLOWS_ALL);
- }
- };
- void initFromParams(const Params&);
-
- virtual ~LLDragHandle();
- virtual void setValue(const LLSD& value);
- void setForeground(BOOL b) { mForeground = b; }
- BOOL getForeground() const { return mForeground; }
- void setMaxTitleWidth(S32 max_width) {mMaxTitleWidth = llmin(max_width, mMaxTitleWidth); }
- S32 getMaxTitleWidth() const { return mMaxTitleWidth; }
- void setTitleVisible(BOOL visible);
- virtual void setTitle( const std::string& title ) = 0;
- virtual std::string getTitle() const = 0;
- virtual BOOL handleHover(S32 x, S32 y, MASK mask);
- virtual BOOL handleMouseDown(S32 x, S32 y, MASK mask);
- virtual BOOL handleMouseUp(S32 x, S32 y, MASK mask);
- protected:
- LLDragHandle(const Params&);
- friend class LLUICtrlFactory;
-
- protected:
- LLTextBox* mTitleBox;
-
- private:
- S32 mDragLastScreenX;
- S32 mDragLastScreenY;
- S32 mLastMouseScreenX;
- S32 mLastMouseScreenY;
- LLCoordGL mLastMouseDir;
- LLUIColor mDragHighlightColor;
- LLUIColor mDragShadowColor;
- S32 mMaxTitleWidth;
- BOOL mForeground;
- // Pixels near the edge to snap floaters.
- static S32 sSnapMargin;
- };
- // Use this one for traditional top-of-window draggers
- class LLDragHandleTop
- : public LLDragHandle
- {
- protected:
- LLDragHandleTop(const Params& p) : LLDragHandle(p) {}
- friend class LLUICtrlFactory;
- public:
- virtual void setTitle( const std::string& title );
- virtual std::string getTitle() const;
- virtual void draw();
- virtual void reshape(S32 width, S32 height, BOOL called_from_parent = TRUE);
- private:
- void reshapeTitleBox();
- };
- // Use this for left-side, vertical text draggers
- class LLDragHandleLeft
- : public LLDragHandle
- {
- protected:
- LLDragHandleLeft(const Params& p) : LLDragHandle(p) {}
- friend class LLUICtrlFactory;
- public:
- virtual void setTitle( const std::string& title );
- virtual std::string getTitle() const;
- virtual void draw();
- virtual void reshape(S32 width, S32 height, BOOL called_from_parent = TRUE);
- };
- const S32 DRAG_HANDLE_HEIGHT = 16;
- const S32 DRAG_HANDLE_WIDTH = 16;
- #endif // LL_DRAGHANDLE_H