Imported existing code

indra/newview/lltoolbrush.h

@@ -0,0 +1,110 @@
+/** 
+ * @file lltoolbrush.h
+ * @brief toolbrush class header file
+ *
+ * $LicenseInfo:firstyear=2002&license=viewergpl$
+ * 
+ * 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_LLTOOLBRUSH_H
+#define LL_LLTOOLBRUSH_H
+
+#include "lltool.h"
+#include "v3math.h"
+#include "lleditmenuhandler.h"
+
+class LLSurface;
+class LLVector3d;
+class LLViewerRegion;
+
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+// Class LLToolBrushLand
+//
+// A toolbrush that modifies the land.
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+class LLToolBrushLand : public LLTool, public LLEditMenuHandler, public LLSingleton<LLToolBrushLand>
+{
+	typedef std::set<LLViewerRegion*> region_list_t;
+
+public:
+	LLToolBrushLand();
+	
+	// x,y in window coords, 0,0 = left,bot
+	virtual BOOL handleMouseDown( S32 x, S32 y, MASK mask );
+	virtual BOOL handleMouseUp( S32 x, S32 y, MASK mask );		
+	virtual BOOL handleHover( S32 x, S32 y, MASK mask );
+	virtual void handleSelect();
+	virtual void handleDeselect();
+
+	// isAlwaysRendered() - return true if this is a tool that should
+	// always be rendered regardless of selection.
+	virtual BOOL isAlwaysRendered() { return TRUE; }
+
+	// Draw the area that will be affected.
+	virtual void render();
+
+	// on Idle is where the land modification actually occurs
+	static void onIdle(void* brush_tool);  
+
+	void			onMouseCaptureLost();
+
+	void modifyLandInSelectionGlobal();
+	virtual void	undo();
+	virtual BOOL	canUndo() const	{ return TRUE; }
+
+protected:
+	void brush( void );
+	void modifyLandAtPointGlobal( const LLVector3d &spot, MASK mask );
+
+	void determineAffectedRegions(region_list_t& regions,
+								  const LLVector3d& spot) const;
+	void renderOverlay(LLSurface& land, const LLVector3& pos_region,
+					   const LLVector3& pos_world);
+
+	// Does region allow terraform, or are we a god?
+	bool canTerraform(LLViewerRegion* regionp) const;
+
+	// Modal dialog that you can't terraform the region
+	void alertNoTerraform(LLViewerRegion* regionp);
+
+protected:
+	F32 mStartingZ;
+	S32 mMouseX;
+	S32 mMouseY;
+	F32 mBrushSize;
+	BOOL mGotHover;
+	BOOL mBrushSelected;
+	// Order doesn't matter and we do check for existance of regions, so use a set
+	region_list_t mLastAffectedRegions;
+
+private:
+	U8 getBrushIndex();
+};
+
+
+#endif // LL_LLTOOLBRUSH_H