Let's all hijack skins. Also here's some half-finished code to fix the preview window.

indra/newview/floatersculptpreview.h

@@ -0,0 +1,144 @@
+/** 
+ * @file LLFloaterSculptPreview.h
+ * @brief LLFloaterSculptPreview class definition
+ *
+ * $LicenseInfo:firstyear=2004&license=viewergpl$
+ * 
+ * Copyright (c) 2004-2009, 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_LLFloaterSculptPreview_H
+#define LL_LLFloaterSculptPreview_H
+
+#include "llfloater.h"
+#include "llresizehandle.h"
+#include "lldynamictexture.h"
+#include "llquaternion.h"
+#include "llviewerobjectlist.h"
+
+class LLComboBox;
+class LLJoint;
+class LLViewerJointMesh;
+class LLVOAvatar;
+class LLTextBox;
+class LLVertexBuffer;
+
+class LLPreviewSculpted : public LLDynamicTexture
+{
+ public:
+	LLPreviewSculpted(S32 width, S32 height);
+	virtual ~LLPreviewSculpted();
+
+	void setPreviewTarget(LLImageRaw *imagep, F32 distance);
+	void setTexture(U32 name) { mTextureName = name; }
+
+	BOOL render();
+	void refresh();
+	void rotate(F32 yaw_radians, F32 pitch_radians);
+	void zoom(F32 zoom_amt);
+	void pan(F32 right, F32 up);
+	virtual BOOL needsRender() { return mNeedsUpdate; }
+
+ protected:
+	BOOL        mNeedsUpdate;
+	U32         mTextureName;
+	F32			mCameraDistance;
+	F32			mCameraYaw;
+	F32			mCameraPitch;
+	F32			mCameraZoom;
+	LLVector3	mCameraOffset;
+	LLPointer<LLVolume> mVolume;
+	LLPointer<LLVertexBuffer> mVertexBuffer;
+};
+
+
+class LLPreviewAvatar : public LLDynamicTexture
+{
+public:
+	LLPreviewAvatar(S32 width, S32 height);
+	virtual ~LLPreviewAvatar();
+
+	void setPreviewTarget(const std::string& joint_name, const std::string& mesh_name, LLImageRaw* imagep, F32 distance, BOOL male);
+	void setTexture(U32 name) { mTextureName = name; }
+	void clearPreviewTexture(const std::string& mesh_name);
+
+	BOOL	render();
+	void	refresh();
+	void	rotate(F32 yaw_radians, F32 pitch_radians);
+	void	zoom(F32 zoom_amt);
+	void	pan(F32 right, F32 up);
+	virtual BOOL needsRender() { return mNeedsUpdate; }
+
+protected:
+	BOOL		mNeedsUpdate;
+	LLJoint*	mTargetJoint;
+	LLViewerJointMesh*	mTargetMesh;
+	F32			mCameraDistance;
+	F32			mCameraYaw;
+	F32			mCameraPitch;
+	F32			mCameraZoom;
+	LLVector3	mCameraOffset;
+	LLPointer<LLVOAvatar> mDummyAvatar;
+	U32			mTextureName;
+};
+
+class LLFloaterSculptPreview : public LLFloater
+{
+public:
+	LLFloaterSculptPreview(LLImageRaw* src);
+	virtual ~LLFloaterSculptPreview();
+	static LLFloaterSculptPreview* show(LLImageRaw* src);
+	virtual BOOL postBuild();
+	
+	BOOL handleMouseDown(S32 x, S32 y, MASK mask);
+	BOOL handleMouseUp(S32 x, S32 y, MASK mask);
+	BOOL handleHover(S32 x, S32 y, MASK mask);
+	BOOL handleScrollWheel(S32 x, S32 y, S32 clicks); 
+
+	static void onMouseCaptureLostImagePreview(LLMouseHandler*);
+	static void setUploadAmount(S32 amount) { sUploadAmount = amount; }
+
+	void clearAllPreviewTextures();
+
+protected:
+	static void		onPreviewTypeCommit(LLUICtrl*,void*);
+	void			draw();
+	bool			loadImage(LLImageRaw* src);
+
+	LLPointer<LLImageRaw> mRawImagep;
+	LLPreviewAvatar* mAvatarPreview;
+	LLPreviewSculpted* mSculptedPreview;
+	S32				mLastMouseX;
+	S32				mLastMouseY;
+	LLRect			mPreviewRect;
+	LLRectf			mPreviewImageRect;
+	LLPointer<LLImageGL> mImagep ;
+	LLViewerObject* tmpvolume;
+	
+	static S32		sUploadAmount;
+};
+
+#endif  // LL_LLFloaterSculptPreview_H