Imported existing code

indra/llui/llslider.h

@@ -0,0 +1,111 @@
+/** 
+ * @file llslider.h
+ * @brief A simple slider with no label.
+ *
+ * $LicenseInfo:firstyear=2002&license=viewergpl$
+ * 
+ * Copyright (c) 2002-2009, 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_LLSLIDER_H
+#define LL_LLSLIDER_H
+
+#include "lluictrl.h"
+#include "v4color.h"
+
+class LLImageGL;
+
+class LLSlider : public LLUICtrl
+{
+public:
+	LLSlider( 
+		const std::string& name,
+		const LLRect& rect,
+		void (*on_commit_callback)(LLUICtrl* ctrl, void* userdata),
+		void* callback_userdata,
+		F32 initial_value,
+		F32 min_value,
+		F32 max_value,
+		F32 increment,
+		BOOL volume, //TODO: create a "volume" slider sub-class or just use image art, no?  -MG
+		const std::string& control_name = LLStringUtil::null );
+
+	virtual LLXMLNodePtr getXML(bool save_children = true) const;
+	static  LLView* fromXML(LLXMLNodePtr node, LLView *parent, class LLUICtrlFactory *factory);
+
+	void			setValue( F32 value, BOOL from_event = FALSE );
+	F32				getValueF32() const { return mValue; }
+
+	virtual void	setValue(const LLSD& value )	{ setValue((F32)value.asReal(), TRUE); }
+	virtual LLSD	getValue() const		{ return LLSD(getValueF32()); }
+
+	virtual void	setMinValue(LLSD min_value)	{ setMinValue((F32)min_value.asReal()); }
+	virtual void	setMaxValue(LLSD max_value)	{ setMaxValue((F32)max_value.asReal());  }
+
+	F32				getInitialValue() const { return mInitialValue; }
+	F32				getMinValue() const		{ return mMinValue; }
+	F32				getMaxValue() const		{ return mMaxValue; }
+	F32				getIncrement() const	{ return mIncrement; }
+	void			setMinValue(F32 min_value) {mMinValue = min_value; updateThumbRect(); }
+	void			setMaxValue(F32 max_value) {mMaxValue = max_value; updateThumbRect(); }
+	void			setIncrement(F32 increment) {mIncrement = increment;}
+	void			setMouseDownCallback( void (*cb)(LLUICtrl* ctrl, void* userdata) ) { mMouseDownCallback = cb; }
+	void			setMouseUpCallback(	void (*cb)(LLUICtrl* ctrl, void* userdata) ) { mMouseUpCallback = cb; }
+
+	virtual BOOL	handleHover(S32 x, S32 y, MASK mask);
+	virtual BOOL	handleMouseUp(S32 x, S32 y, MASK mask);
+	virtual BOOL	handleMouseDown(S32 x, S32 y, MASK mask);
+	virtual BOOL	handleKeyHere(KEY key, MASK mask);
+	virtual void	draw();
+
+private:
+	void			setValueAndCommit(F32 value);
+	void			updateThumbRect();
+
+	F32				mValue;
+	F32				mInitialValue;
+	F32				mMinValue;
+	F32				mMaxValue;
+	F32				mIncrement;
+
+	BOOL			mVolumeSlider;
+	S32				mMouseOffset;
+	LLRect			mDragStartThumbRect;
+
+	LLUIImage*		mThumbImage;
+	LLUIImage*		mTrackImage;
+	LLUIImage*		mTrackHighlightImage;
+
+	LLRect			mThumbRect;
+	LLColor4		mTrackColor;
+	LLColor4		mThumbOutlineColor;
+	LLColor4		mThumbCenterColor;
+	
+	void			(*mMouseDownCallback)(LLUICtrl* ctrl, void* userdata);
+	void			(*mMouseUpCallback)(LLUICtrl* ctrl, void* userdata);
+};
+
+#endif  // LL_LLSLIDER_H