111 lines
3.6 KiB
C++
111 lines
3.6 KiB
C++
/**
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* @file llfloaterbigpreview.cpp
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* @brief Display of extended (big) preview for snapshots and SL Share
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* @author merov@lindenlab.com
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*
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* $LicenseInfo:firstyear=2013&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2013, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#include "llviewerprecompiledheaders.h"
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#include "llfloaterbigpreview.h"
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#include "llsnapshotlivepreview.h"
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///////////////////////
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//LLFloaterBigPreview//
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///////////////////////
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LLFloaterBigPreview::LLFloaterBigPreview(const LLSD& key) : LLFloater(key),
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mPreviewPlaceholder(NULL),
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mFloaterOwner(NULL)
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{
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}
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LLFloaterBigPreview::~LLFloaterBigPreview()
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{
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if (mPreviewHandle.get())
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{
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mPreviewHandle.get()->die();
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}
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}
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void LLFloaterBigPreview::onCancel()
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{
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closeFloater();
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}
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void LLFloaterBigPreview::closeOnFloaterOwnerClosing(LLFloater* floaterp)
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{
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if (isFloaterOwner(floaterp))
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{
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closeFloater();
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}
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}
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bool LLFloaterBigPreview::postBuild()
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{
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mPreviewPlaceholder = getChild<LLUICtrl>("big_preview_placeholder");
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return LLFloater::postBuild();
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}
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void LLFloaterBigPreview::draw()
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{
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LLFloater::draw();
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LLSnapshotLivePreview * previewp = static_cast<LLSnapshotLivePreview *>(mPreviewHandle.get());
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// Display the preview if one is available
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if (previewp && previewp->getBigThumbnailImage())
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{
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// Get the preview rect
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const LLRect& preview_rect = mPreviewPlaceholder->getRect();
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// Get the preview texture size
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S32 thumbnail_w = previewp->getBigThumbnailWidth();
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S32 thumbnail_h = previewp->getBigThumbnailHeight();
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// Compute the scaling ratio and the size of the final texture in the rect: we want to prevent anisotropic scaling (distorted in x and y)
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F32 ratio = llmax((F32)(thumbnail_w)/(F32)(preview_rect.getWidth()), (F32)(thumbnail_h)/(F32)(preview_rect.getHeight()));
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thumbnail_w = (S32)((F32)(thumbnail_w)/ratio);
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thumbnail_h = (S32)((F32)(thumbnail_h)/ratio);
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// Compute the preview offset within the preview rect: we want to center that preview in the available rect
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const S32 local_offset_x = (preview_rect.getWidth() - thumbnail_w) / 2 ;
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const S32 local_offset_y = (preview_rect.getHeight() - thumbnail_h) / 2 ;
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// Compute preview offset within the floater rect
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S32 offset_x = preview_rect.mLeft + local_offset_x;
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S32 offset_y = preview_rect.mBottom + local_offset_y;
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gGL.matrixMode(LLRender::MM_MODELVIEW);
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// Apply floater transparency to the texture unless the floater is focused.
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F32 alpha = getTransparencyType() == TT_ACTIVE ? 1.0f : getCurrentTransparency();
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LLColor4 color = LLColor4::white;
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// Draw the preview texture
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gl_draw_scaled_image(offset_x, offset_y,
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thumbnail_w, thumbnail_h,
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previewp->getBigThumbnailImage(), color % alpha);
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}
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}
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