From 1e47e5b42d352d5d838eeb96984dbf6497020e32 Mon Sep 17 00:00:00 2001
From: Loren Shih <seraph@lindenlab.com>
Date: Wed, 3 Feb 2010 17:42:04 -0500
Subject: EXT-4022 : Texture previews don't work in object contents

This was broken long ago in viewer-2.0.0-2 when someone made the decision to stop passing in ObjectID to the texture preview floater.
---
 indra/newview/llpreview.h          |  2 +-
 indra/newview/llpreviewtexture.cpp | 58 +++++++++++++++++++++++++++-----------
 indra/newview/llpreviewtexture.h   |  3 ++
 3 files changed, 46 insertions(+), 17 deletions(-)

diff --git a/indra/newview/llpreview.h b/indra/newview/llpreview.h
index 3b9f7f9882..551e247d8c 100644
--- a/indra/newview/llpreview.h
+++ b/indra/newview/llpreview.h
@@ -74,7 +74,7 @@ public:
 		
 	/*virtual*/ BOOL postBuild();
 	
-	void setObjectID(const LLUUID& object_id);
+	virtual void setObjectID(const LLUUID& object_id);
 	void setItem( LLInventoryItem* item );
 	
 	void setAssetId(const LLUUID& asset_id);
diff --git a/indra/newview/llpreviewtexture.cpp b/indra/newview/llpreviewtexture.cpp
index 028807a6bd..dfc67d0126 100644
--- a/indra/newview/llpreviewtexture.cpp
+++ b/indra/newview/llpreviewtexture.cpp
@@ -74,22 +74,10 @@ LLPreviewTexture::LLPreviewTexture(const LLSD& key)
 	  mLastHeight(0),
 	  mLastWidth(0),
 	  mAspectRatio(0.f),
-	  mPreviewToSave(FALSE)
+	  mPreviewToSave(FALSE),
+	  mImage(NULL)
 {
-	const LLViewerInventoryItem *item = static_cast<const LLViewerInventoryItem*>(getItem());
-	if(item)
-	{
-		mShowKeepDiscard = item->getPermissions().getCreator() != gAgent.getID();
-		mImageID = item->getAssetUUID();
-		mIsCopyable = item->checkPermissionsSet(PERM_ITEM_UNRESTRICTED);
-	}
-	else // not an item, assume it's an asset id
-	{
-		mImageID = mItemUUID;
-		mCopyToInv = TRUE;
-		mIsCopyable = TRUE;
-	}
-
+	updateImageID();
 	if (key.has("save_as"))
 	{
 		mPreviewToSave = TRUE;
@@ -97,7 +85,6 @@ LLPreviewTexture::LLPreviewTexture(const LLSD& key)
 	//Called from floater reg: LLUICtrlFactory::getInstance()->buildFloater(this, "floater_preview_texture.xml", FALSE);
 }
 
-
 LLPreviewTexture::~LLPreviewTexture()
 {
 	if( mLoadingFullImage )
@@ -493,3 +480,42 @@ LLPreview::EAssetStatus LLPreviewTexture::getAssetStatus()
 	}
 	return mAssetStatus;
 }
+
+void LLPreviewTexture::updateImageID()
+{
+	const LLViewerInventoryItem *item = static_cast<const LLViewerInventoryItem*>(getItem());
+	if(item)
+	{
+		mImageID = item->getAssetUUID();
+		mShowKeepDiscard = item->getPermissions().getCreator() != gAgent.getID();
+		mCopyToInv = FALSE;
+		mIsCopyable = item->checkPermissionsSet(PERM_ITEM_UNRESTRICTED);
+	}
+	else // not an item, assume it's an asset id
+	{
+		mImageID = mItemUUID;
+		mShowKeepDiscard = FALSE;
+		mCopyToInv = TRUE;
+		mIsCopyable = TRUE;
+	}
+
+}
+
+/* virtual */
+void LLPreviewTexture::setObjectID(const LLUUID& object_id)
+{
+	mObjectUUID = object_id;
+
+	const LLUUID old_image_id = mImageID;
+
+	// Update what image we're pointing to, such as if we just specified the mObjectID
+	// that this mItemID is part of.
+	updateImageID();
+
+	// If the imageID has changed, start over and reload the new image.
+	if (mImageID != old_image_id)
+	{
+		mAssetStatus = PREVIEW_ASSET_UNLOADED;
+		loadAsset();
+	}
+}
diff --git a/indra/newview/llpreviewtexture.h b/indra/newview/llpreviewtexture.h
index 980aecee6d..7cd2adad56 100644
--- a/indra/newview/llpreviewtexture.h
+++ b/indra/newview/llpreviewtexture.h
@@ -69,6 +69,8 @@ public:
 	void 				openToSave();
 	
 	static void			onSaveAsBtn(void* data);
+
+	/*virtual*/ void setObjectID(const LLUUID& object_id);
 protected:
 	void				init();
 	/* virtual */ BOOL	postBuild();
@@ -76,6 +78,7 @@ protected:
 	static void			onAspectRatioCommit(LLUICtrl*,void* userdata);
 	
 private:
+	void				updateImageID(); // set what image is being uploaded.
 	void				updateDimensions();
 	LLUUID				mImageID;
 	LLPointer<LLViewerFetchedTexture>		mImage;
-- 
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