/indra/newview/llfloatersnapshot.cpp

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/** 
 * @file llfloatersnapshot.cpp
 * @brief Snapshot preview window, allowing saving, e-mailing, etc.
 *
 * $LicenseInfo:firstyear=2004&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#include "llviewerprecompiledheaders.h"

#include "llfloatersnapshot.h"

#include "llfloaterreg.h"

// Viewer includes
#include "llagent.h"
#include "llagentcamera.h"
#include "llcallbacklist.h"
#include "llcriticaldamp.h"
#include "llfloaterperms.h"
#include "llui.h"
#include "llfocusmgr.h"
#include "llbutton.h"
#include "llcombobox.h"
#include "lleconomy.h"
#include "lllandmarkactions.h"
#include "llpanelsnapshot.h"
#include "llsidetraypanelcontainer.h"
#include "llsliderctrl.h"
#include "llspinctrl.h"
#include "llviewercontrol.h"
#include "lluictrlfactory.h"
#include "llviewerstats.h"
#include "llviewercamera.h"
#include "llviewerwindow.h"
#include "llviewermenufile.h"	// upload_new_resource()
#include "llcheckboxctrl.h"
#include "llslurl.h"
#include "lltoolfocus.h"
#include "lltoolmgr.h"
#include "llwebsharing.h"
#include "llworld.h"
#include "llagentui.h"

// Linden library includes
#include "llfontgl.h"
#include "llsys.h"
#include "llrender.h"
#include "v3dmath.h"
#include "llmath.h"
#include "lldir.h"
#include "llsdserialize.h"
#include "llgl.h"
#include "llglheaders.h"
#include "llimagejpeg.h"
#include "llimagepng.h"
#include "llimagebmp.h"
#include "llimagej2c.h"
#include "lllocalcliprect.h"
#include "llnotificationsutil.h"
#include "llpostcard.h"
#include "llresmgr.h"		// LLLocale
#include "llvfile.h"
#include "llvfs.h"
#include "llwebprofile.h"
#include "llwindow.h"

///----------------------------------------------------------------------------
/// Local function declarations, constants, enums, and typedefs
///----------------------------------------------------------------------------
LLUICtrl* LLFloaterSnapshot::sThumbnailPlaceholder = NULL;
LLSnapshotFloaterView* gSnapshotFloaterView = NULL;

const F32 AUTO_SNAPSHOT_TIME_DELAY = 1.f;

F32 SHINE_TIME = 0.5f;
F32 SHINE_WIDTH = 0.6f;
F32 SHINE_OPACITY = 0.3f;
F32 FALL_TIME = 0.6f;
S32 BORDER_WIDTH = 6;

const S32 MAX_POSTCARD_DATASIZE = 1024 * 1024; // one megabyte
const S32 MAX_TEXTURE_SIZE = 512 ; //max upload texture size 512 * 512

static LLDefaultChildRegistry::Register<LLSnapshotFloaterView> r("snapshot_floater_view");

///----------------------------------------------------------------------------
/// Class LLSnapshotLivePreview 
///----------------------------------------------------------------------------
class LLSnapshotLivePreview : public LLView
{
	LOG_CLASS(LLSnapshotLivePreview);
public:
	enum ESnapshotType
	{
		SNAPSHOT_POSTCARD,
		SNAPSHOT_TEXTURE,
		SNAPSHOT_LOCAL,
		SNAPSHOT_WEB
	};


	struct Params : public LLInitParam::Block<Params, LLView::Params>
	{
		Params()
		{
			name = "snapshot_live_preview";
			mouse_opaque = false;
		}
	};


	LLSnapshotLivePreview(const LLSnapshotLivePreview::Params& p);
	~LLSnapshotLivePreview();

	/*virtual*/ void draw();
	/*virtual*/ void reshape(S32 width, S32 height, BOOL called_from_parent);
	
	void setSize(S32 w, S32 h);
	void setWidth(S32 w) { mWidth[mCurImageIndex] = w; }
	void setHeight(S32 h) { mHeight[mCurImageIndex] = h; }
	void getSize(S32& w, S32& h) const;
	S32 getWidth() const { return mWidth[mCurImageIndex]; }
	S32 getHeight() const { return mHeight[mCurImageIndex]; }
	S32 getDataSize() const { return mDataSize; }
	void setMaxImageSize(S32 size) ;
	S32  getMaxImageSize() {return mMaxImageSize ;}
	
	ESnapshotType getSnapshotType() const { return mSnapshotType; }
	LLFloaterSnapshot::ESnapshotFormat getSnapshotFormat() const { return mSnapshotFormat; }
	BOOL getSnapshotUpToDate() const { return mSnapshotUpToDate; }
	BOOL isSnapshotActive() { return mSnapshotActive; }
	LLViewerTexture* getThumbnailImage() const { return mThumbnailImage ; }
	S32  getThumbnailWidth() const { return mThumbnailWidth ; }
	S32  getThumbnailHeight() const { return mThumbnailHeight ; }
	BOOL getThumbnailLock() const { return mThumbnailUpdateLock ; }
	BOOL getThumbnailUpToDate() const { return mThumbnailUpToDate ;}
	LLViewerTexture* getCurrentImage();
	F32 getImageAspect();
	F32 getAspect() ;
	const LLRect& getImageRect() const { return mImageRect[mCurImageIndex]; }
	BOOL isImageScaled() const { return mImageScaled[mCurImageIndex]; }
	void setImageScaled(BOOL scaled) { mImageScaled[mCurImageIndex] = scaled; }
	const LLVector3d& getPosTakenGlobal() const { return mPosTakenGlobal; }
	
	void setSnapshotType(ESnapshotType type) { mSnapshotType = type; }
	void setSnapshotFormat(LLFloaterSnapshot::ESnapshotFormat type) { mSnapshotFormat = type; }
	void setSnapshotQuality(S32 quality);
	void setSnapshotBufferType(LLViewerWindow::ESnapshotType type) { mSnapshotBufferType = type; }
	void updateSnapshot(BOOL new_snapshot, BOOL new_thumbnail = FALSE, F32 delay = 0.f);
	void saveWeb();
	void saveTexture();
	BOOL saveLocal();

	LLPointer<LLImageFormatted>	getFormattedImage() const { return mFormattedImage; }
	LLPointer<LLImageRaw>		getEncodedImage() const { return mPreviewImageEncoded; }

	/// Sets size of preview thumbnail image and thhe surrounding rect.
	BOOL setThumbnailImageSize() ;
	void generateThumbnailImage(BOOL force_update = FALSE) ;
	void resetThumbnailImage() { mThumbnailImage = NULL ; }
	void drawPreviewRect(S32 offset_x, S32 offset_y) ;

	// Returns TRUE when snapshot generated, FALSE otherwise.
	static BOOL onIdle( void* snapshot_preview );

	// callback for region name resolve
	void regionNameCallback(LLImageJPEG* snapshot, LLSD& metadata, const std::string& name, S32 x, S32 y, S32 z);

private:
	LLColor4					mColor;
	LLPointer<LLViewerTexture>	mViewerImage[2]; //used to represent the scene when the frame is frozen.
	LLRect						mImageRect[2];
	S32							mWidth[2];
	S32							mHeight[2];
	BOOL						mImageScaled[2];
	S32                         mMaxImageSize ;
	
	//thumbnail image
	LLPointer<LLViewerTexture>	mThumbnailImage ;
	S32                         mThumbnailWidth ;
	S32                         mThumbnailHeight ;
	LLRect                      mPreviewRect ;
	BOOL                        mThumbnailUpdateLock ;
	BOOL                        mThumbnailUpToDate ;

	S32							mCurImageIndex;
	LLPointer<LLImageRaw>		mPreviewImage;
	LLPointer<LLImageRaw>		mPreviewImageEncoded;
	LLPointer<LLImageFormatted>	mFormattedImage;
	LLFrameTimer				mSnapshotDelayTimer;
	S32							mShineCountdown;
	LLFrameTimer				mShineAnimTimer;
	F32							mFlashAlpha;
	BOOL						mNeedsFlash;
	LLVector3d					mPosTakenGlobal;
	S32							mSnapshotQuality;
	S32							mDataSize;
	ESnapshotType				mSnapshotType;
	LLFloaterSnapshot::ESnapshotFormat	mSnapshotFormat;
	BOOL						mSnapshotUpToDate;
	LLFrameTimer				mFallAnimTimer;
	LLVector3					mCameraPos;
	LLQuaternion				mCameraRot;
	BOOL						mSnapshotActive;
	LLViewerWindow::ESnapshotType mSnapshotBufferType;

public:
	static std::set<LLSnapshotLivePreview*> sList;
	BOOL                        mKeepAspectRatio ;
};

std::set<LLSnapshotLivePreview*> LLSnapshotLivePreview::sList;

LLSnapshotLivePreview::LLSnapshotLivePreview (const LLSnapshotLivePreview::Params& p) 
:	LLView(p),
	mColor(1.f, 0.f, 0.f, 0.5f), 
	mCurImageIndex(0),
	mPreviewImage(NULL),
	mThumbnailImage(NULL) ,
	mThumbnailWidth(0),
	mThumbnailHeight(0),
	mPreviewImageEncoded(NULL),
	mFormattedImage(NULL),
	mShineCountdown(0),
	mFlashAlpha(0.f),
	mNeedsFlash(TRUE),
	mSnapshotQuality(gSavedSettings.getS32("SnapshotQuality")),
	mDataSize(0),
	mSnapshotType(SNAPSHOT_POSTCARD),
	mSnapshotFormat(LLFloaterSnapshot::ESnapshotFormat(gSavedSettings.getS32("SnapshotFormat"))),
	mSnapshotUpToDate(FALSE),
	mCameraPos(LLViewerCamera::getInstance()->getOrigin()),
	mCameraRot(LLViewerCamera::getInstance()->getQuaternion()),
	mSnapshotActive(FALSE),
	mSnapshotBufferType(LLViewerWindow::SNAPSHOT_TYPE_COLOR)
{
	setSnapshotQuality(gSavedSettings.getS32("SnapshotQuality"));
	mSnapshotDelayTimer.setTimerExpirySec(0.0f);
	mSnapshotDelayTimer.start();
// 	gIdleCallbacks.addFunction( &LLSnapshotLivePreview::onIdle, (void*)this );
	sList.insert(this);
	setFollowsAll();
	mWidth[0] = gViewerWindow->getWindowWidthRaw();
	mWidth[1] = gViewerWindow->getWindowWidthRaw();
	mHeight[0] = gViewerWindow->getWindowHeightRaw();
	mHeight[1] = gViewerWindow->getWindowHeightRaw();
	mImageScaled[0] = FALSE;
	mImageScaled[1] = FALSE;

	mMaxImageSize = MAX_SNAPSHOT_IMAGE_SIZE ;
	mKeepAspectRatio = gSavedSettings.getBOOL("KeepAspectForSnapshot") ;
	mThumbnailUpdateLock = FALSE ;
	mThumbnailUpToDate   = FALSE ;
}

LLSnapshotLivePreview::~LLSnapshotLivePreview()
{
	// delete images
	mPreviewImage = NULL;
	mPreviewImageEncoded = NULL;
	mFormattedImage = NULL;

// 	gIdleCallbacks.deleteFunction( &LLSnapshotLivePreview::onIdle, (void*)this );
	sList.erase(this);
}

void LLSnapshotLivePreview::setMaxImageSize(S32 size) 
{
	if(size < MAX_SNAPSHOT_IMAGE_SIZE)
	{
		mMaxImageSize = size;
	}
	else
	{
		mMaxImageSize = MAX_SNAPSHOT_IMAGE_SIZE ;
	}
}

LLViewerTexture* LLSnapshotLivePreview::getCurrentImage()
{
	return mViewerImage[mCurImageIndex];
}

F32 LLSnapshotLivePreview::getAspect()
{
	F32 image_aspect_ratio = ((F32)getWidth()) / ((F32)getHeight());
	F32 window_aspect_ratio = ((F32)getRect().getWidth()) / ((F32)getRect().getHeight());

	if (!mKeepAspectRatio)//gSavedSettings.getBOOL("KeepAspectForSnapshot"))
	{
		return image_aspect_ratio;
	}
	else
	{
		return window_aspect_ratio;
	}
}

F32 LLSnapshotLivePreview::getImageAspect()
{
	if (!getCurrentImage())
	{
		return 0.f;
	}

	return getAspect() ;	
}

void LLSnapshotLivePreview::updateSnapshot(BOOL new_snapshot, BOOL new_thumbnail, F32 delay) 
{
	// Invalidate current image.
	lldebugs << "updateSnapshot: mSnapshotUpToDate = " << getSnapshotUpToDate() << llendl;
	if (getSnapshotUpToDate())
	{
		S32 old_image_index = mCurImageIndex;
		mCurImageIndex = (mCurImageIndex + 1) % 2; 
		setSize(mWidth[old_image_index], mHeight[old_image_index]);
		mFallAnimTimer.start();		
	}
	mSnapshotUpToDate = FALSE; 		

	// Update snapshot source rect depending on whether we keep the aspect ratio.
	LLRect& rect = mImageRect[mCurImageIndex];
	rect.set(0, getRect().getHeight(), getRect().getWidth(), 0);

	F32 image_aspect_ratio = ((F32)getWidth()) / ((F32)getHeight());
	F32 window_aspect_ratio = ((F32)getRect().getWidth()) / ((F32)getRect().getHeight());

	if (mKeepAspectRatio)//gSavedSettings.getBOOL("KeepAspectForSnapshot"))
	{
		if (image_aspect_ratio > window_aspect_ratio)
		{
			// trim off top and bottom
			S32 new_height = llround((F32)getRect().getWidth() / image_aspect_ratio); 
			rect.mBottom += (getRect().getHeight() - new_height) / 2;
			rect.mTop -= (getRect().getHeight() - new_height) / 2;
		}
		else if (image_aspect_ratio < window_aspect_ratio)
		{
			// trim off left and right
			S32 new_width = llround((F32)getRect().getHeight() * image_aspect_ratio); 
			rect.mLeft += (getRect().getWidth() - new_width) / 2;
			rect.mRight -= (getRect().getWidth() - new_width) / 2;
		}
	}

	// Stop shining animation.
	mShineAnimTimer.stop();

	// Update snapshot if requested.
	if (new_snapshot)
	{
		mSnapshotDelayTimer.start();
		mSnapshotDelayTimer.setTimerExpirySec(delay);
		LLFloaterSnapshot::preUpdate();
	}

	// Update thumbnail if requested.
	if(new_thumbnail)
	{
		mThumbnailUpToDate = FALSE ;
	}
}

void LLSnapshotLivePreview::setSnapshotQuality(S32 quality)
{
	llclamp(quality, 0, 100);
	if (quality != mSnapshotQuality)
	{
		mSnapshotQuality = quality;
		gSavedSettings.setS32("SnapshotQuality", quality);
		mSnapshotUpToDate = FALSE;
	}
}

void LLSnapshotLivePreview::drawPreviewRect(S32 offset_x, S32 offset_y)
{
	F32 line_width ; 
	glGetFloatv(GL_LINE_WIDTH, &line_width) ;
	glLineWidth(2.0f * line_width) ;
	LLColor4 color(0.0f, 0.0f, 0.0f, 1.0f) ;
	gl_rect_2d( mPreviewRect.mLeft + offset_x, mPreviewRect.mTop + offset_y,
				mPreviewRect.mRight + offset_x, mPreviewRect.mBottom + offset_y, color, FALSE ) ;
	glLineWidth(line_width) ;

	//draw four alpha rectangles to cover areas outside of the snapshot image
	if(!mKeepAspectRatio)
	{
		LLColor4 alpha_color(0.5f, 0.5f, 0.5f, 0.8f) ;
		S32 dwl = 0, dwr = 0 ;
		if(mThumbnailWidth > mPreviewRect.getWidth())
		{
			dwl = (mThumbnailWidth - mPreviewRect.getWidth()) >> 1 ;
			dwr = mThumbnailWidth - mPreviewRect.getWidth() - dwl ;

			gl_rect_2d(mPreviewRect.mLeft + offset_x - dwl, mPreviewRect.mTop + offset_y,
				mPreviewRect.mLeft + offset_x, mPreviewRect.mBottom + offset_y, alpha_color, TRUE ) ;
			gl_rect_2d( mPreviewRect.mRight + offset_x, mPreviewRect.mTop + offset_y,
				mPreviewRect.mRight + offset_x + dwr, mPreviewRect.mBottom + offset_y, alpha_color, TRUE ) ;
		}

		if(mThumbnailHeight > mPreviewRect.getHeight())
		{
			S32 dh = (mThumbnailHeight - mPreviewRect.getHeight()) >> 1 ;
			gl_rect_2d(mPreviewRect.mLeft + offset_x - dwl, mPreviewRect.mBottom + offset_y ,
				mPreviewRect.mRight + offset_x + dwr, mPreviewRect.mBottom + offset_y - dh, alpha_color, TRUE ) ;

			dh = mThumbnailHeight - mPreviewRect.getHeight() - dh ;
			gl_rect_2d( mPreviewRect.mLeft + offset_x - dwl, mPreviewRect.mTop + offset_y + dh,
				mPreviewRect.mRight + offset_x + dwr, mPreviewRect.mTop + offset_y, alpha_color, TRUE ) ;
		}
	}
}

//called when the frame is frozen.
void LLSnapshotLivePreview::draw()
{
	if (getCurrentImage() &&
	    mPreviewImageEncoded.notNull() &&
	    getSnapshotUpToDate())
	{
		LLColor4 bg_color(0.f, 0.f, 0.3f, 0.4f);
		gl_rect_2d(getRect(), bg_color);
		const LLRect& rect = getImageRect();
		LLRect shadow_rect = rect;
		shadow_rect.stretch(BORDER_WIDTH);
		gl_drop_shadow(shadow_rect.mLeft, shadow_rect.mTop, shadow_rect.mRight, shadow_rect.mBottom, LLColor4(0.f, 0.f, 0.f, mNeedsFlash ? 0.f :0.5f), 10);

		LLColor4 image_color(1.f, 1.f, 1.f, 1.f);
		gGL.color4fv(image_color.mV);
		gGL.getTexUnit(0)->bind(getCurrentImage());
		// calculate UV scale
		F32 uv_width = isImageScaled() ? 1.f : llmin((F32)getWidth() / (F32)getCurrentImage()->getWidth(), 1.f);
		F32 uv_height = isImageScaled() ? 1.f : llmin((F32)getHeight() / (F32)getCurrentImage()->getHeight(), 1.f);
		gGL.pushMatrix();
		{
			gGL.translatef((F32)rect.mLeft, (F32)rect.mBottom, 0.f);
			gGL.begin(LLRender::QUADS);
			{
				gGL.texCoord2f(uv_width, uv_height);
				gGL.vertex2i(rect.getWidth(), rect.getHeight() );

				gGL.texCoord2f(0.f, uv_height);
				gGL.vertex2i(0, rect.getHeight() );

				gGL.texCoord2f(0.f, 0.f);
				gGL.vertex2i(0, 0);

				gGL.texCoord2f(uv_width, 0.f);
				gGL.vertex2i(rect.getWidth(), 0);
			}
			gGL.end();
		}
		gGL.popMatrix();

		gGL.color4f(1.f, 1.f, 1.f, mFlashAlpha);
		gl_rect_2d(getRect());
		if (mNeedsFlash)
		{
			if (mFlashAlpha < 1.f)
			{
				mFlashAlpha = lerp(mFlashAlpha, 1.f, LLCriticalDamp::getInterpolant(0.02f));
			}
			else
			{
				mNeedsFlash = FALSE;
			}
		}
		else
		{
			mFlashAlpha = lerp(mFlashAlpha, 0.f, LLCriticalDamp::getInterpolant(0.15f));
		}

		// Draw shining animation if appropriate.
		if (mShineCountdown > 0)
		{
			mShineCountdown--;
			if (mShineCountdown == 0)
			{
				mShineAnimTimer.start();
			}
		}
		else if (mShineAnimTimer.getStarted())
		{
			lldebugs << "Drawing shining animation" << llendl;
			F32 shine_interp = llmin(1.f, mShineAnimTimer.getElapsedTimeF32() / SHINE_TIME);
			
			// draw "shine" effect
			LLLocalClipRect clip(getLocalRect());
			{
				// draw diagonal stripe with gradient that passes over screen
				S32 x1 = gViewerWindow->getWindowWidthScaled() * llround((clamp_rescale(shine_interp, 0.f, 1.f, -1.f - SHINE_WIDTH, 1.f)));
				S32 x2 = x1 + llround(gViewerWindow->getWindowWidthScaled() * SHINE_WIDTH);
				S32 x3 = x2 + llround(gViewerWindow->getWindowWidthScaled() * SHINE_WIDTH);
				S32 y1 = 0;
				S32 y2 = gViewerWindow->getWindowHeightScaled();

				gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
				gGL.begin(LLRender::QUADS);
				{
					gGL.color4f(1.f, 1.f, 1.f, 0.f);
					gGL.vertex2i(x1, y1);
					gGL.vertex2i(x1 + gViewerWindow->getWindowWidthScaled(), y2);
					gGL.color4f(1.f, 1.f, 1.f, SHINE_OPACITY);
					gGL.vertex2i(x2 + gViewerWindow->getWindowWidthScaled(), y2);
					gGL.vertex2i(x2, y1);

					gGL.color4f(1.f, 1.f, 1.f, SHINE_OPACITY);
					gGL.vertex2i(x2, y1);
					gGL.vertex2i(x2 + gViewerWindow->getWindowWidthScaled(), y2);
					gGL.color4f(1.f, 1.f, 1.f, 0.f);
					gGL.vertex2i(x3 + gViewerWindow->getWindowWidthScaled(), y2);
					gGL.vertex2i(x3, y1);
				}
				gGL.end();
			}

			// if we're at the end of the animation, stop
			if (shine_interp >= 1.f)
			{
				mShineAnimTimer.stop();
			}
		}
	}

	// draw framing rectangle
	{
		gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
		gGL.color4f(1.f, 1.f, 1.f, 1.f);
		const LLRect& outline_rect = getImageRect();
		gGL.begin(LLRender::QUADS);
		{
			gGL.vertex2i(outline_rect.mLeft - BORDER_WIDTH, outline_rect.mTop + BORDER_WIDTH);
			gGL.vertex2i(outline_rect.mRight + BORDER_WIDTH, outline_rect.mTop + BORDER_WIDTH);
			gGL.vertex2i(outline_rect.mRight, outline_rect.mTop);
			gGL.vertex2i(outline_rect.mLeft, outline_rect.mTop);

			gGL.vertex2i(outline_rect.mLeft, outline_rect.mBottom);
			gGL.vertex2i(outline_rect.mRight, outline_rect.mBottom);
			gGL.vertex2i(outline_rect.mRight + BORDER_WIDTH, outline_rect.mBottom - BORDER_WIDTH);
			gGL.vertex2i(outline_rect.mLeft - BORDER_WIDTH, outline_rect.mBottom - BORDER_WIDTH);

			gGL.vertex2i(outline_rect.mLeft, outline_rect.mTop);
			gGL.vertex2i(outline_rect.mLeft, outline_rect.mBottom);
			gGL.vertex2i(outline_rect.mLeft - BORDER_WIDTH, outline_rect.mBottom - BORDER_WIDTH);
			gGL.vertex2i(outline_rect.mLeft - BORDER_WIDTH, outline_rect.mTop + BORDER_WIDTH);

			gGL.vertex2i(outline_rect.mRight, outline_rect.mBottom);
			gGL.vertex2i(outline_rect.mRight, outline_rect.mTop);
			gGL.vertex2i(outline_rect.mRight + BORDER_WIDTH, outline_rect.mTop + BORDER_WIDTH);
			gGL.vertex2i(outline_rect.mRight + BORDER_WIDTH, outline_rect.mBottom - BORDER_WIDTH);
		}
		gGL.end();
	}

	// draw old image dropping away
	if (mFallAnimTimer.getStarted())
	{
		S32 old_image_index = (mCurImageIndex + 1) % 2;
		if (mViewerImage[old_image_index].notNull() && mFallAnimTimer.getElapsedTimeF32() < FALL_TIME)
		{
			lldebugs << "Drawing fall animation" << llendl;
			F32 fall_interp = mFallAnimTimer.getElapsedTimeF32() / FALL_TIME;
			F32 alpha = clamp_rescale(fall_interp, 0.f, 1.f, 0.8f, 0.4f);
			LLColor4 image_color(1.f, 1.f, 1.f, alpha);
			gGL.color4fv(image_color.mV);
			gGL.getTexUnit(0)->bind(mViewerImage[old_image_index]);
			// calculate UV scale
			// *FIX get this to work with old image
			BOOL rescale = !mImageScaled[old_image_index] && mViewerImage[mCurImageIndex].notNull();
			F32 uv_width = rescale ? llmin((F32)mWidth[old_image_index] / (F32)mViewerImage[mCurImageIndex]->getWidth(), 1.f) : 1.f;
			F32 uv_height = rescale ? llmin((F32)mHeight[old_image_index] / (F32)mViewerImage[mCurImageIndex]->getHeight(), 1.f) : 1.f;
			gGL.pushMatrix();
			{
				LLRect& rect = mImageRect[old_image_index];
				gGL.translatef((F32)rect.mLeft, (F32)rect.mBottom - llround(getRect().getHeight() * 2.f * (fall_interp * fall_interp)), 0.f);
				gGL.rotatef(-45.f * fall_interp, 0.f, 0.f, 1.f);
				gGL.begin(LLRender::QUADS);
				{
					gGL.texCoord2f(uv_width, uv_height);
					gGL.vertex2i(rect.getWidth(), rect.getHeight() );

					gGL.texCoord2f(0.f, uv_height);
					gGL.vertex2i(0, rect.getHeight() );

					gGL.texCoord2f(0.f, 0.f);
					gGL.vertex2i(0, 0);

					gGL.texCoord2f(uv_width, 0.f);
					gGL.vertex2i(rect.getWidth(), 0);
				}
				gGL.end();
			}
			gGL.popMatrix();
		}
	}
}

/*virtual*/ 
void LLSnapshotLivePreview::reshape(S32 width, S32 height, BOOL called_from_parent)
{
	LLRect old_rect = getRect();
	LLView::reshape(width, height, called_from_parent);
	if (old_rect.getWidth() != width || old_rect.getHeight() != height)
	{
		lldebugs << "window reshaped, updating thumbnail" << llendl;
		updateSnapshot(FALSE, TRUE);
	}
}

BOOL LLSnapshotLivePreview::setThumbnailImageSize()
{
	if(getWidth() < 10 || getHeight() < 10)
	{
		return FALSE ;
	}
	S32 window_width = gViewerWindow->getWindowWidthRaw() ;
	S32 window_height = gViewerWindow->getWindowHeightRaw() ;

	F32 window_aspect_ratio = ((F32)window_width) / ((F32)window_height);

	// UI size for thumbnail
	// *FIXME: the rect does not change, so maybe there's no need to recalculate max w/h.
	const LLRect& thumbnail_rect = LLFloaterSnapshot::getThumbnailPlaceholderRect();
	S32 max_width = thumbnail_rect.getWidth();
	S32 max_height = thumbnail_rect.getHeight();

	if (window_aspect_ratio > (F32)max_width / max_height)
	{
		// image too wide, shrink to width
		mThumbnailWidth = max_width;
		mThumbnailHeight = llround((F32)max_width / window_aspect_ratio);
	}
	else
	{
		// image too tall, shrink to height
		mThumbnailHeight = max_height;
		mThumbnailWidth = llround((F32)max_height * window_aspect_ratio);
	}
	
	if(mThumbnailWidth > window_width || mThumbnailHeight > window_height)
	{
		return FALSE ;//if the window is too small, ignore thumbnail updating.
	}

	S32 left = 0 , top = mThumbnailHeight, right = mThumbnailWidth, bottom = 0 ;
	if(!mKeepAspectRatio)
	{
		F32 ratio_x = (F32)getWidth() / window_width ;
		F32 ratio_y = (F32)getHeight() / window_height ;

		//if(getWidth() > window_width ||
		//	getHeight() > window_height )
		{
			if(ratio_x > ratio_y)
			{
				top = (S32)(top * ratio_y / ratio_x) ;
			}
			else
			{
				right = (S32)(right * ratio_x / ratio_y) ;
			}			
		}
		//else
		//{
		//	right = (S32)(right * ratio_x) ;
		//	top = (S32)(top * ratio_y) ;
		//}
		left = (S32)((mThumbnailWidth - right) * 0.5f) ;
		bottom = (S32)((mThumbnailHeight - top) * 0.5f) ;
		top += bottom ;
		right += left ;
	}
	mPreviewRect.set(left - 1, top + 1, right + 1, bottom - 1) ;

	return TRUE ;
}

void LLSnapshotLivePreview::generateThumbnailImage(BOOL force_update)
{	
	if(mThumbnailUpdateLock) //in the process of updating
	{
		return ;
	}
	if(getThumbnailUpToDate() && !force_update)//already updated
	{
		return ;
	}
	if(getWidth() < 10 || getHeight() < 10)
	{
		return ;
	}

	////lock updating
	mThumbnailUpdateLock = TRUE ;

	if(!setThumbnailImageSize())
	{
		mThumbnailUpdateLock = FALSE ;
		mThumbnailUpToDate = TRUE ;
		return ;
	}

	if(mThumbnailImage)
	{
		resetThumbnailImage() ;
	}		

	LLPointer<LLImageRaw> raw = new LLImageRaw;
	if(!gViewerWindow->thumbnailSnapshot(raw,
							mThumbnailWidth, mThumbnailHeight,
							gSavedSettings.getBOOL("RenderUIInSnapshot"),
							FALSE,
							mSnapshotBufferType) )								
	{
		raw = NULL ;
	}

	if(raw)
	{
		raw->expandToPowerOfTwo();
		mThumbnailImage = LLViewerTextureManager::getLocalTexture(raw.get(), FALSE); 		
		mThumbnailUpToDate = TRUE ;
	}

	//unlock updating
	mThumbnailUpdateLock = FALSE ;		
}


// Called often. Checks whether it's time to grab a new snapshot and if so, does it.
// Returns TRUE if new snapshot generated, FALSE otherwise.
//static 
BOOL LLSnapshotLivePreview::onIdle( void* snapshot_preview )
{
	LLSnapshotLivePreview* previewp = (LLSnapshotLivePreview*)snapshot_preview;
	if (previewp->getWidth() == 0 || previewp->getHeight() == 0)
	{
		llwarns << "Incorrect dimensions: " << previewp->getWidth() << "x" << previewp->getHeight() << llendl;
		return FALSE;
	}

	// If we're in freeze-frame mode and camera has moved, update snapshot.
	LLVector3 new_camera_pos = LLViewerCamera::getInstance()->getOrigin();
	LLQuaternion new_camera_rot = LLViewerCamera::getInstance()->getQuaternion();
	if (gSavedSettings.getBOOL("FreezeTime") && 
		(new_camera_pos != previewp->mCameraPos || dot(new_camera_rot, previewp->mCameraRot) < 0.995f))
	{
		previewp->mCameraPos = new_camera_pos;
		previewp->mCameraRot = new_camera_rot;
		// request a new snapshot whenever the camera moves, with a time delay
		BOOL autosnap = gSavedSettings.getBOOL("AutoSnapshot");
		lldebugs << "camera moved, updating thumbnail" << llendl;
		previewp->updateSnapshot(
			autosnap, // whether a new snapshot is needed or merely invalidate the existing one
			FALSE, // or if 1st arg is false, whether to produce a new thumbnail image.
			autosnap ? AUTO_SNAPSHOT_TIME_DELAY : 0.f); // shutter delay if 1st arg is true.
	}

	// see if it's time yet to snap the shot and bomb out otherwise.
	previewp->mSnapshotActive = 
		(previewp->mSnapshotDelayTimer.getStarted() &&	previewp->mSnapshotDelayTimer.hasExpired())
		&& !LLToolCamera::getInstance()->hasMouseCapture(); // don't take snapshots while ALT-zoom active
	if ( ! previewp->mSnapshotActive)
	{
		return FALSE;
	}

	// time to produce a snapshot
	previewp->setThumbnailImageSize();

	lldebugs << "producing snapshot" << llendl;
	if (!previewp->mPreviewImage)
	{
		previewp->mPreviewImage = new LLImageRaw;
	}

	if (!previewp->mPreviewImageEncoded)
	{
		previewp->mPreviewImageEncoded = new LLImageRaw;
	}

	previewp->setVisible(FALSE);
	previewp->setEnabled(FALSE);
	
	previewp->getWindow()->incBusyCount();
	previewp->setImageScaled(FALSE);

	// grab the raw image and encode it into desired format
	if(gViewerWindow->rawSnapshot(
							previewp->mPreviewImage,
							previewp->getWidth(),
							previewp->getHeight(),
							previewp->mKeepAspectRatio,//gSavedSettings.getBOOL("KeepAspectForSnapshot"),
							previewp->getSnapshotType() == LLSnapshotLivePreview::SNAPSHOT_TEXTURE,
							gSavedSettings.getBOOL("RenderUIInSnapshot"),
							FALSE,
							previewp->mSnapshotBufferType,
							previewp->getMaxImageSize()))
	{
		previewp->mPreviewImageEncoded->resize(
			previewp->mPreviewImage->getWidth(), 
			previewp->mPreviewImage->getHeight(), 
			previewp->mPreviewImage->getComponents());

		if(previewp->getSnapshotType() == SNAPSHOT_TEXTURE)
		{
			lldebugs << "Encoding new image of format J2C" << llendl;
			LLPointer<LLImageJ2C> formatted = new LLImageJ2C;
			LLPointer<LLImageRaw> scaled = new LLImageRaw(
				previewp->mPreviewImage->getData(),
				previewp->mPreviewImage->getWidth(),
				previewp->mPreviewImage->getHeight(),
				previewp->mPreviewImage->getComponents());
		
			scaled->biasedScaleToPowerOfTwo(MAX_TEXTURE_SIZE);
			previewp->setImageScaled(TRUE);
			if (formatted->encode(scaled, 0.f))
			{
				previewp->mDataSize = formatted->getDataSize();
				formatted->decode(previewp->mPreviewImageEncoded, 0);
			}
		}
		else
		{
			// delete any existing image
			previewp->mFormattedImage = NULL;
			// now create the new one of the appropriate format.
			LLFloaterSnapshot::ESnapshotFormat format = previewp->getSnapshotFormat();
			lldebugs << "Encoding new image of format " << format << llendl;

			switch(format)
			{
			case LLFloaterSnapshot::SNAPSHOT_FORMAT_PNG:
				previewp->mFormattedImage = new LLImagePNG(); 
				break;
			case LLFloaterSnapshot::SNAPSHOT_FORMAT_JPEG:
				previewp->mFormattedImage = new LLImageJPEG(previewp->mSnapshotQuality); 
				break;
			case LLFloaterSnapshot::SNAPSHOT_FORMAT_BMP:
				previewp->mFormattedImage = new LLImageBMP(); 
				break;
			}
			if (previewp->mFormattedImage->encode(previewp->mPreviewImage, 0))
			{
				previewp->mDataSize = previewp->mFormattedImage->getDataSize();
				// special case BMP to copy instead of decode otherwise decode will crash.
				if(format == LLFloaterSnapshot::SNAPSHOT_FORMAT_BMP)
				{
					previewp->mPreviewImageEncoded->copy(previewp->mPreviewImage);
				}
				else
				{
					previewp->mFormattedImage->decode(previewp->mPreviewImageEncoded, 0);
				}
			}
		}

		LLPointer<LLImageRaw> scaled = new LLImageRaw(
			previewp->mPreviewImageEncoded->getData(),
			previewp->mPreviewImageEncoded->getWidth(),
			previewp->mPreviewImageEncoded->getHeight(),
			previewp->mPreviewImageEncoded->getComponents());
		
		if(!scaled->isBufferInvalid())
		{
			// leave original image dimensions, just scale up texture buffer
			if (previewp->mPreviewImageEncoded->getWidth() > 1024 || previewp->mPreviewImageEncoded->getHeight() > 1024)
			{
				// go ahead and shrink image to appropriate power of 2 for display
				scaled->biasedScaleToPowerOfTwo(1024);
				previewp->setImageScaled(TRUE);
			}
			else
			{
				// expand image but keep original image data intact
				scaled->expandToPowerOfTwo(1024, FALSE);
			}

			previewp->mViewerImage[previewp->mCurImageIndex] = LLViewerTextureManager::getLocalTexture(scaled.get(), FALSE);
			LLPointer<LLViewerTexture> curr_preview_image = previewp->mViewerImage[previewp->mCurImageIndex];
			gGL.getTexUnit(0)->bind(curr_preview_image);
			if (previewp->getSnapshotType() != SNAPSHOT_TEXTURE)
			{
				curr_preview_image->setFilteringOption(LLTexUnit::TFO_POINT);
			}
			else
			{
				curr_preview_image->setFilteringOption(LLTexUnit::TFO_ANISOTROPIC);
			}
			curr_preview_image->setAddressMode(LLTexUnit::TAM_CLAMP);

			previewp->mSnapshotUpToDate = TRUE;
			previewp->generateThumbnailImage(TRUE) ;

			previewp->mPosTakenGlobal = gAgentCamera.getCameraPositionGlobal();
			previewp->mShineCountdown = 4; // wait a few frames to avoid animation glitch due to readback this frame
		}
	}
	previewp->getWindow()->decBusyCount();
	// only show fullscreen preview when in freeze frame mode
	previewp->setVisible(gSavedSettings.getBOOL("UseFreezeFrame"));
	previewp->mSnapshotDelayTimer.stop();
	previewp->mSnapshotActive = FALSE;

	if(!previewp->getThumbnailUpToDate())
	{
		previewp->generateThumbnailImage() ;
	}
	lldebugs << "done creating snapshot" << llendl;
	LLFloaterSnapshot::postUpdate();

	return TRUE;
}

void LLSnapshotLivePreview::setSize(S32 w, S32 h)
{
	lldebugs << "setSize(" << w << ", " << h << ")" << llendl;
	setWidth(w);
	setHeight(h);
}

void LLSnapshotLivePreview::getSize(S32& w, S32& h) const
{
	w = getWidth();
	h = getHeight();
}

void LLSnapshotLivePreview::saveTexture()
{
	lldebugs << "saving texture: " << mPreviewImage->getWidth() << "x" << mPreviewImage->getHeight() << llendl;
	// gen a new uuid for this asset
	LLTransactionID tid;
	tid.generate();
	LLAssetID new_asset_id = tid.makeAssetID(gAgent.getSecureSessionID());
		
	LLPointer<LLImageJ2C> formatted = new LLImageJ2C;
	LLPointer<LLImageRaw> scaled = new LLImageRaw(mPreviewImage->getData(),
												  mPreviewImage->getWidth(),
												  mPreviewImage->getHeight(),
												  mPreviewImage->getComponents());
	
	scaled->biasedScaleToPowerOfTwo(MAX_TEXTURE_SIZE);
	lldebugs << "scaled texture to " << scaled->getWidth() << "x" << scaled->getHeight() << llendl;

	if (formatted->encode(scaled, 0.0f))
	{
		LLVFile::writeFile(formatted->getData(), formatted->getDataSize(), gVFS, new_asset_id, LLAssetType::AT_TEXTURE);
		std::string pos_string;
		LLAgentUI::buildLocationString(pos_string, LLAgentUI::LOCATION_FORMAT_FULL);
		std::string who_took_it;
		LLAgentUI::buildFullname(who_took_it);
		LLAssetStorage::LLStoreAssetCallback callback = NULL;
		S32 expected_upload_cost = LLGlobalEconomy::Singleton::getInstance()->getPriceUpload();
		void *userdata = NULL;
		upload_new_resource(tid,	// tid
				    LLAssetType::AT_TEXTURE,
				    "Snapshot : " + pos_string,
				    "Taken by " + who_took_it + " at " + pos_string,
				    0,
				    LLFolderType::FT_SNAPSHOT_CATEGORY,
				    LLInventoryType::IT_SNAPSHOT,
				    PERM_ALL,  // Note: Snapshots to inventory is a special case of content upload
				    LLFloaterPerms::getGroupPerms(), // that is more permissive than other uploads
				    LLFloaterPerms::getEveryonePerms(),
				    "Snapshot : " + pos_string,
				    callback, expected_upload_cost, userdata);
		gViewerWindow->playSnapshotAnimAndSound();
	}
	else
	{
		LLNotificationsUtil::add("ErrorEncodingSnapshot");
		llwarns << "Error encoding snapshot" << llendl;
	}

	LLViewerStats::getInstance()->incStat(LLViewerStats::ST_SNAPSHOT_COUNT );
	
	mDataSize = 0;
}

BOOL LLSnapshotLivePreview::saveLocal()
{
	BOOL success = gViewerWindow->saveImageNumbered(mFormattedImage);

	if(success)
	{
		gViewerWindow->playSnapshotAnimAndSound();
	}
	return success;
}

void LLSnapshotLivePreview::saveWeb()
{
	// *FIX: Will break if the window closes because of CloseSnapshotOnKeep!
	// Needs to pass on ownership of the image.
	LLImageJPEG* jpg = dynamic_cast<LLImageJPEG*>(mFormattedImage.get());
	if(!jpg)
	{
		llwarns << "Formatted image not a JPEG" << llendl;
		return;
	}

	LLSD metadata;
	metadata["description"] = getChild<LLLineEditor>("description")->getText();

	LLLandmarkActions::getRegionNameAndCoordsFromPosGlobal(gAgentCamera.getCameraPositionGlobal(),
		boost::bind(&LLSnapshotLivePreview::regionNameCallback, this, jpg, metadata, _1, _2, _3, _4));

	gViewerWindow->playSnapshotAnimAndSound();
}

void LLSnapshotLivePreview::regionNameCallback(LLImageJPEG* snapshot, LLSD& metadata, const std::string& name, S32 x, S32 y, S32 z)
{
	metadata["slurl"] = LLSLURL(name, LLVector3d(x, y, z)).getSLURLString();

	LLWebSharing::instance().shareSnapshot(snapshot, metadata);
}

///----------------------------------------------------------------------------
/// Class LLFloaterSnapshot::Impl
///----------------------------------------------------------------------------

class LLFloaterSnapshot::Impl
{
	LOG_CLASS(LLFloaterSnapshot::Impl);
public:
	typedef enum e_status
	{
		STATUS_READY,
		STATUS_WORKING,
		STATUS_FINISHED
	} EStatus;

	Impl()
	:	mAvatarPauseHandles(),
		mLastToolset(NULL),
		mAspectRatioCheckOff(false),
		mNeedRefresh(false),
		mStatus(STATUS_READY)
	{
	}
	~Impl()
	{
		//unpause avatars
		mAvatarPauseHandles.clear();

	}
	static void onClickNewSnapshot(void* data);
	static void onClickAutoSnap(LLUICtrl *ctrl, void* data);
	//static void onClickAdvanceSnap(LLUICtrl *ctrl, void* data);
	static void onClickMore(void* data) ;
	static void onClickUICheck(LLUICtrl *ctrl, void* data);
	static void onClickHUDCheck(LLUICtrl *ctrl, void* data);
	static void applyKeepAspectCheck(LLFloaterSnapshot* view, BOOL checked);
	static void updateResolution(LLUICtrl* ctrl, void* data, BOOL do_update = TRUE);
	static void onCommitFreezeFrame(LLUICtrl* ctrl, void* data);
	static void onCommitLayerTypes(LLUICtrl* ctrl, void*data);
	static void onImageQualityChange(LLFloaterSnapshot* view, S32 quality_val);
	static void onImageFormatChange(LLFloaterSnapshot* view);
	static void applyCustomResolution(LLFloaterSnapshot* view, S32 w, S32 h);
	static void onSnapshotUploadFinished(bool status);
	static void onSendingPostcardFinished(bool status);
	static BOOL checkImageSize(LLSnapshotLivePreview* previewp, S32& width, S32& height, BOOL isWidthChanged, S32 max_value);
	static void setImageSizeSpinnersValues(LLFloaterSnapshot *view, S32 width, S32 height) ;
	static void updateSpinners(LLFloaterSnapshot* view, LLSnapshotLivePreview* previewp, S32& width, S32& height, BOOL is_width_changed);

	static LLPanelSnapshot* getActivePanel(LLFloaterSnapshot* floater, bool ok_if_not_found = true);
	static LLSnapshotLivePreview::ESnapshotType getActiveSnapshotType(LLFloaterSnapshot* floater);
	static LLFloaterSnapshot::ESnapshotFormat getImageFormat(LLFloaterSnapshot* floater);
	static LLSpinCtrl* getWidthSpinner(LLFloaterSnapshot* floater);
	static LLSpinCtrl* getHeightSpinner(LLFloaterSnapshot* floater);
	static void enableAspectRatioCheckbox(LLFloaterSnapshot* floater, BOOL enable);
	static void setAspectRatioCheckboxValue(LLFloaterSnapshot* floater, BOOL checked);

	static LLSnapshotLivePreview* getPreviewView(LLFloaterSnapshot *floater);
	static void setResolution(LLFloaterSnapshot* floater, const std::string& comboname);
	static void updateControls(LLFloaterSnapshot* floater);
	static void updateLayout(LLFloaterSnapshot* floater);
	static void setStatus(EStatus status, bool ok = true, const std::string& msg = LLStringUtil::null);
	EStatus getStatus() const { return mStatus; }
	static void setNeedRefresh(LLFloaterSnapshot* floater, bool need);

private:
	static LLViewerWindow::ESnapshotType getLayerType(LLFloaterSnapshot* floater);
	static void comboSetCustom(LLFloaterSnapshot *floater, const std::string& comboname);
	static void checkAutoSnapshot(LLSnapshotLivePreview* floater, BOOL update_thumbnail = FALSE);
	static void checkAspectRatio(LLFloaterSnapshot *view, S32 index) ;
	static void setWorking(LLFloaterSnapshot* floater, bool working);
	static void setFinished(LLFloaterSnapshot* floater, bool finished, bool ok = true, const std::string& msg = LLStringUtil::null);


public:
	std::vector<LLAnimPauseRequest> mAvatarPauseHandles;

	LLToolset*	mLastToolset;
	LLHandle<LLView> mPreviewHandle;
	bool mAspectRatioCheckOff ;
	bool mNeedRefresh;
	EStatus mStatus;
};

// static
LLPanelSnapshot* LLFloaterSnapshot::Impl::getActivePanel(LLFloaterSnapshot* floater, bool ok_if_not_found)
{
	LLSideTrayPanelContainer* panel_container = floater->getChild<LLSideTrayPanelContainer>("panel_container");
	LLPanelSnapshot* active_panel = dynamic_cast<LLPanelSnapshot*>(panel_container->getCurrentPanel());
	if (!ok_if_not_found)
	{
		llassert_always(active_panel != NULL);
	}
	return active_panel;
}

// static
LLSnapshotLivePreview::ESnapshotType LLFloaterSnapshot::Impl::getActiveSnapshotType(LLFloaterSnapshot* floater)
{
	LLSnapshotLivePreview::ESnapshotType type = LLSnapshotLivePreview::SNAPSHOT_WEB;
	std::string name;
	LLPanelSnapshot* spanel = getActivePanel(floater);

	if (spanel)
	{
		name = spanel->getName();
	}

	if (name == "panel_snapshot_postcard")
	{
		type = LLSnapshotLivePreview::SNAPSHOT_POSTCARD;
	}
	else if (name == "panel_snapshot_inventory")
	{
		type = LLSnapshotLivePreview::SNAPSHOT_TEXTURE;
	}
	else if (name == "panel_snapshot_local")
	{
		type = LLSnapshotLivePreview::SNAPSHOT_LOCAL;
	}

	return type;
}

// static
LLFloaterSnapshot::ESnapshotFormat LLFloaterSnapshot::Impl::getImageFormat(LLFloaterSnapshot* floater)
{
	LLPanelSnapshot* active_panel = getActivePanel(floater);
	// FIXME: if the default is not PNG, profile uploads may fail.
	return active_panel ? active_panel->getImageFormat() : LLFloaterSnapshot::SNAPSHOT_FORMAT_PNG;
}

// static
LLSpinCtrl* LLFloaterSnapshot::Impl::getWidthSpinner(LLFloaterSnapshot* floater)
{
	LLPanelSnapshot* active_panel = getActivePanel(floater);
	return active_panel ? active_panel->getWidthSpinner() : floater->getChild<LLSpinCtrl>("snapshot_width");
}

// static
LLSpinCtrl* LLFloaterSnapshot::Impl::getHeightSpinner(LLFloaterSnapshot* floater)
{
	LLPanelSnapshot* active_panel = getActivePanel(floater);
	return active_panel ? active_panel->getHeightSpinner() : floater->getChild<LLSpinCtrl>("snapshot_height");
}

// static
void LLFloaterSnapshot::Impl::enableAspectRatioCheckbox(LLFloaterSnapshot* floater, BOOL enable)
{
	LLPanelSnapshot* active_panel = getActivePanel(floater);
	if (active_panel)
	{
		active_panel->enableAspectRatioCheckbox(enable);
	}
}

// static
void LLFloaterSnapshot::Impl::setAspectRatioCheckboxValue(LLFloaterSnapshot* floater, BOOL checked)
{
	LLPanelSnapshot* active_panel = getActivePanel(floater);
	if (active_panel)
	{
		active_panel->getChild<LLUICtrl>(active_panel->getAspectRatioCBName())->setValue(checked);
	}
}

// static
LLSnapshotLivePreview* LLFloaterSnapshot::Impl::getPreviewView(LLFloaterSnapshot *floater)
{
	LLSnapshotLivePreview* previewp = (LLSnapshotLivePreview*)floater->impl.mPreviewHandle.get();
	return previewp;
}

// static
LLViewerWindow::ESnapshotType LLFloaterSnapshot::Impl::getLayerType(LLFloaterSnapshot* floater)
{
	LLViewerWindow::ESnapshotType type = LLViewerWindow::SNAPSHOT_TYPE_COLOR;
	LLSD value = floater->getChild<LLUICtrl>("layer_types")->getValue();
	const std::string id = value.asString();
	if (id == "colors")
		type = LLViewerWindow::SNAPSHOT_TYPE_COLOR;
	else if (id == "depth")
		type = LLViewerWindow::SNAPSHOT_TYPE_DEPTH;
	return type;
}

// static
void LLFloaterSnapshot::Impl::setResolution(LLFloaterSnapshot* floater, const std::string& comboname)
{
	LLComboBox* combo = floater->getChild<LLComboBox>(comboname);
		combo->setVisible(TRUE);
	updateResolution(combo, floater, FALSE); // to sync spinners with combo
}

//static 
void LLFloaterSnapshot::Impl::updateLayout(LLFloaterSnapshot* floaterp)
{
	LLSnapshotLivePreview* previewp = getPreviewView(floaterp);

	BOOL advanced = gSavedSettings.getBOOL("AdvanceSnapshot");

	// Show/hide advanced options.
	LLPanel* advanced_options_panel = floaterp->getChild<LLPanel>("advanced_options_panel");
	floaterp->getChild<LLButton>("advanced_options_btn")->setImageOverlay(advanced ? "TabIcon_Open_Off" : "TabIcon_Close_Off");
	if (advanced != advanced_options_panel->getVisible())
	{
		S32 panel_width = advanced_options_panel->getRect().getWidth();
		floaterp->getChild<LLPanel>("advanced_options_panel")->setVisible(advanced);
		S32 floater_width = floaterp->getRect().getWidth();
		floater_width += (advanced ? panel_width : -panel_width);
		floaterp->reshape(floater_width, floaterp->getRect().getHeight());
	}

	if(!advanced) //set to original window resolution
	{
		previewp->mKeepAspectRatio = TRUE;

		floaterp->getChild<LLComboBox>("profile_size_combo")->setCurrentByIndex(0);
		floaterp->getChild<LLComboBox>("postcard_size_combo")->setCurrentByIndex(0);
		floaterp->getChild<LLComboBox>("texture_size_combo")->setCurrentByIndex(0);
		floaterp->getChild<LLComboBox>("local_size_combo")->setCurrentByIndex(0);

		LLSnapshotLivePreview* previewp = getPreviewView(floaterp);
		previewp->setSize(gViewerWindow->getWindowWidthRaw(), gViewerWindow->getWindowHeightRaw());
	}

	bool use_freeze_frame = floaterp->getChild<LLUICtrl>("freeze_frame_check")->getValue().asBoolean();

	if (use_freeze_frame)
	{
		// stop all mouse events at fullscreen preview layer
		floaterp->getParent()->setMouseOpaque(TRUE);
		
		// shrink to smaller layout
		// *TODO: unneeded?
		floaterp->reshape(floaterp->getRect().getWidth(), floaterp->getRect().getHeight());

		// can see and interact with fullscreen preview now
		if (previewp)
		{
			previewp->setVisible(TRUE);
			previewp->setEnabled(TRUE);
		}

		//RN: freeze all avatars
		LLCharacter* avatarp;
		for (std::vector<LLCharacter*>::iterator iter = LLCharacter::sInstances.begin();
			iter != LLCharacter::sInstances.end(); ++iter)
		{
			avatarp = *iter;
			floaterp->impl.mAvatarPauseHandles.push_back(avatarp->requestPause());
		}

		// freeze everything else
		gSavedSettings.setBOOL("FreezeTime", TRUE);

		if (LLToolMgr::getInstance()->getCurrentToolset() != gCameraToolset)
		{
			floaterp->impl.mLastToolset = LLToolMgr::getInstance()->getCurrentToolset();
			LLToolMgr::getInstance()->setCurrentToolset(gCameraToolset);
		}
	}
	else // turning off freeze frame mode
	{
		floaterp->getParent()->setMouseOpaque(FALSE);
		// *TODO: unneeded?
		floaterp->reshape(floaterp->getRect().getWidth(), floaterp->getRect().getHeight());
		if (previewp)
		{
			previewp->setVisible(FALSE);
			previewp->setEnabled(FALSE);
		}

		//RN: thaw all avatars
		floaterp->impl.mAvatarPauseHandles.clear();

		// thaw everything else
		gSavedSettings.setBOOL("FreezeTime", FALSE);

		// restore last tool (e.g. pie menu, etc)
		if (floaterp->impl.mLastToolset)
		{
			LLToolMgr::getInstance()->setCurrentToolset(floaterp->impl.mLastToolset);
		}
	}
}

// This is the main function that keeps all the GUI controls in sync with the saved settings.
// It should be called anytime a setting is changed that could affect the controls.
// No other methods should be changing any of the controls directly except for helpers called by this method.
// The basic pattern for programmatically changing the GUI settings is to first set the
// appropriate saved settings and then call this method to sync the GUI with them.
// FIXME: The above comment seems obsolete now.
// static
void LLFloaterSnapshot::Impl::updateControls(LLFloaterSnapshot* floater)
{
	LLSnapshotLivePreview::ESnapshotType shot_type = getActiveSnapshotType(floater);
	ESnapshotFormat shot_format = (ESnapshotFormat)gSavedSettings.getS32("SnapshotFormat");
	LLViewerWindow::ESnapshotType layer_type = getLayerType(floater);

#if 0
	floater->getChildView("share_to_web")->setVisible( gSavedSettings.getBOOL("SnapshotSharingEnabled"));
#endif

	floater->getChild<LLComboBox>("local_format_combo")->selectNthItem(gSavedSettings.getS32("SnapshotFormat"));
	enableAspectRatioCheckbox(floater, !floater->impl.mAspectRatioCheckOff);
	setAspectRatioCheckboxValue(floater, gSavedSettings.getBOOL("KeepAspectForSnapshot"));
	floater->getChildView("layer_types")->setEnabled(shot_type == LLSnapshotLivePreview::SNAPSHOT_LOCAL);

	LLPanelSnapshot* active_panel = getActivePanel(floater);
	if (active_panel)
	{
		LLSpinCtrl* width_ctrl = getWidthSpinner(floater);
		LLSpinCtrl* height_ctrl = getHeightSpinner(floater);

		// Initialize spinners.
		if (width_ctrl->getValue().asInteger() == 0)
		{
			S32 w = gViewerWindow->getWindowWidthRaw();
			lldebugs << "Initializing width spinner (" << width_ctrl->getName() << "): " << w << llendl;
			width_ctrl->setValue(w);
		}
		if (height_ctrl->getValue().asInteger() == 0)
		{
			S32 h = gViewerWindow->getWindowHeightRaw();
			lldebugs << "Initializing height spinner (" << height_ctrl->getName() << "): " << h << llendl;
			height_ctrl->setValue(h);
		}

		// ?lamp snapshot resolution to window size when showing UI or HUD in snapshot.
		if (gSavedSettings.getBOOL("RenderUIInSnapshot") || gSavedSettings.getBOOL("RenderHUDInSnapshot"))
		{
			S32 width = gViewerWindow->getWindowWidthRaw();
			S32 height = gViewerWindow->getWindowHeightRaw();

			width_ctrl->setMaxValue(width);

			height_ctrl->setMaxValue(height);

			if (width_ctrl->getValue().asInteger() > width)
			{
				width_ctrl->forceSetValue(width);
			}
			if (height_ctrl->getValue().asInteger() > height)
			{
				height_ctrl->forceSetValue(height);
			}
		}
		else
		{
			width_ctrl->setMaxValue(6016);
			height_ctrl->setMaxValue(6016);
		}
	}
		
	LLSnapshotLivePreview* previewp = getPreviewView(floater);
	BOOL got_bytes = previewp && previewp->getDataSize() > 0;
	BOOL got_snap = previewp && previewp->getSnapshotUpToDate();

	// *TODO: Separate maximum size for Web images from postcards
	lldebugs << "Is snapshot up-to-date? " << got_snap << llendl;

	LLLocale locale(LLLocale::USER_LOCALE);
	std::string bytes_string;
	if (got_snap)
	{
		LLResMgr::getInstance()->getIntegerString(bytes_string, (previewp->getDataSize()) >> 10 );
	}

	// Update displayed image resolution.
	LLTextBox* image_res_tb = floater->getChild<LLTextBox>("image_res_text");
	image_res_tb->setVisible(got_snap);
	if (got_snap)
	{
		LLPointer<LLImageRaw> img = previewp->getEncodedImage();
		image_res_tb->setTextArg("[WIDTH]", llformat("%d", img->getWidth()));
		image_res_tb->setTextArg("[HEIGHT]", llformat("%d", img->getHeight()));
	}

	floater->getChild<LLUICtrl>("file_size_label")->setTextArg("[SIZE]", got_snap ? bytes_string : floater->getString("unknown"));
	floater->getChild<LLUICtrl>("file_size_label")->setColor(
		shot_type == LLSnapshotLivePreview::SNAPSHOT_POSTCARD 
		&& got_bytes
		&& previewp->getDataSize() > MAX_POSTCARD_DATASIZE ? LLUIColor(LLColor4::red) : LLUIColorTable::instance().getColor( "LabelTextColor" ));

	// Update the width and height spinners based on the corresponding resolution combos. (?)
	switch(shot_type)
	{
	  case LLSnapshotLivePreview::SNAPSHOT_WEB:
		layer_type = LLViewerWindow::SNAPSHOT_TYPE_COLOR;
		floater->getChild<LLUICtrl>("layer_types")->setValue("colors");
		setResolution(floater, "profile_size_combo");
		break;
	  case LLSnapshotLivePreview::SNAPSHOT_POSTCARD:
		layer_type = LLViewerWindow::SNAPSHOT_TYPE_COLOR;
		floater->getChild<LLUICtrl>("layer_types")->setValue("colors");
		setResolution(floater, "postcard_size_combo");
		break;
	  case LLSnapshotLivePreview::SNAPSHOT_TEXTURE:
		layer_type = LLViewerWindow::SNAPSHOT_TYPE_COLOR;
		floater->getChild<LLUICtrl>("layer_types")->setValue("colors");
		setResolution(floater, "texture_size_combo");
		break;
	  case  LLSnapshotLivePreview::SNAPSHOT_LOCAL:
		setResolution(floater, "local_size_combo");
		break;
	  default:
		break;
	}

	if (previewp)
	{
		previewp->setSnapshotType(shot_type);
		previewp->setSnapshotFormat(shot_format);
		previewp->setSnapshotBufferType(layer_type);
	}

	LLPanelSnapshot* current_panel = Impl::getActivePanel(floater);
	if (current_panel)
	{
		LLSD info;
		info["have-snapshot"] = got_snap;
		current_panel->updateControls(info);
	}
	lldebugs << "finished updating controls" << llendl;
}

// static
void LLFloaterSnapshot::Impl::setStatus(EStatus status, bool ok, const std::string& msg)
{
	LLFloaterSnapshot* floater = LLFloaterSnapshot::getInstance();
	switch (status)
	{
	case STATUS_READY:
		setWorking(floater, false);
		setFinished(floater, false);
		break;
	case STATUS_WORKING:
		setWorking(floater, true);
		setFinished(floater, false);
		break;
	case STATUS_FINISHED:
		setWorking(floater, false);
		setFinished(floater, true, ok, msg);
		break;
	}

	floater->impl.mStatus = status;
}

// static
void LLFloaterSnapshot::Impl::setNeedRefresh(LLFloaterSnapshot* floater, bool need)
{
	if (!floater) return;

	// Don't display the "Refresh to save" message if we're in auto-refresh mode.
	if (gSavedSettings.getBOOL("AutoSnapshot"))
	{
		need = false;
	}

	floater->mRefreshLabel->setVisible(need);
	floater->impl.mNeedRefresh = need;
}

// static
void LLFloaterSnapshot::Impl::checkAutoSnapshot(LLSnapshotLivePreview* previewp, BOOL update_thumbnail)
{
	if (previewp)
	{
		BOOL autosnap = gSavedSettings.getBOOL("AutoSnapshot");
		lldebugs << "updating " << (autosnap ? "snapshot" : "thumbnail")…