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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <sal/log.hxx>
#include <vcl/svapp.hxx>
#include <vcl/bitmapex.hxx>
#include <vcl/gdimtf.hxx>
#include <vcl/settings.hxx>
#include <vcl/virdev.hxx>
#include <vcl/BitmapFilter.hxx>
#include <vcl/ImageTree.hxx>
#include <bitmap/BitmapDisabledImageFilter.hxx>
#include <comphelper/lok.hxx>
#include <image.h>
#include <salgdi.hxx>
ImplImage::ImplImage(const BitmapEx &rBitmapEx)
: maBitmapChecksum(0)
, maSizePixel(rBitmapEx.GetSizePixel())
, maBitmapEx(rBitmapEx)
{
}
ImplImage::ImplImage(const OUString &aStockName)
: maBitmapChecksum(0)
, maStockName(aStockName)
{
}
ImplImage::ImplImage(const GDIMetaFile& rMetaFile)
: maBitmapChecksum(0)
, maSizePixel(rMetaFile.GetPrefSize())
, mxMetaFile(new GDIMetaFile(rMetaFile))
{
}
bool ImplImage::loadStockAtScale(SalGraphics* pGraphics, BitmapEx &rBitmapEx)
{
BitmapEx aBitmapEx;
ImageLoadFlags eScalingFlags = ImageLoadFlags::NONE;
sal_Int32 nScalePercentage = -1;
double fScale(1.0);
if (pGraphics && pGraphics->ShouldDownscaleIconsAtSurface(&fScale)) // scale at the surface
{
nScalePercentage = fScale * 100.0;
eScalingFlags = ImageLoadFlags::IgnoreScalingFactor;
}
OUString aIconTheme = Application::GetSettings().GetStyleSettings().DetermineIconTheme();
if (!ImageTree::get().loadImage(maStockName, aIconTheme, aBitmapEx, true,
nScalePercentage, eScalingFlags))
{
/* If the uno command has parameters, passed in from a toolbar,
* recover from failure by removing the parameters from the file name
*/
if (maStockName.indexOf("%3f") > 0)
{
sal_Int32 nStart = maStockName.indexOf("%3f");
sal_Int32 nEnd = maStockName.lastIndexOf(".");
OUString aFileName = maStockName.replaceAt(nStart, nEnd - nStart, u"");
if (!ImageTree::get().loadImage(aFileName, aIconTheme, aBitmapEx, true,
nScalePercentage, eScalingFlags))
{
SAL_WARN("vcl", "Failed to load scaled image from " << maStockName <<
" and " << aFileName << " at " << fScale);
return false;
}
}
else
{
SAL_WARN("vcl", "Failed to load scaled image from " << maStockName <<
" at " << fScale);
return false;
}
}
rBitmapEx = aBitmapEx;
return true;
}
Size ImplImage::getSizePixel()
{
Size aRet;
if (!isSizeEmpty())
aRet = maSizePixel;
else if (isStock())
{
if (loadStockAtScale(nullptr, maBitmapEx))
{
assert(maDisabledBitmapEx.IsEmpty());
assert(maBitmapChecksum == 0);
maSizePixel = maBitmapEx.GetSizePixel();
aRet = maSizePixel;
}
else
SAL_WARN("vcl", "Failed to load stock icon " << maStockName);
}
return aRet;
}
/// non-HiDPI compatibility method.
BitmapEx const & ImplImage::getBitmapEx(bool bDisabled)
{
getSizePixel(); // force load, and at unity scale.
if (bDisabled)
{
// Changed since we last generated this.
BitmapChecksum aChecksum = maBitmapEx.GetChecksum();
if (maBitmapChecksum != aChecksum ||
maDisabledBitmapEx.GetSizePixel() != maBitmapEx.GetSizePixel())
{
maDisabledBitmapEx = maBitmapEx;
BitmapFilter::Filter(maDisabledBitmapEx, BitmapDisabledImageFilter());
maBitmapChecksum = aChecksum;
}
return maDisabledBitmapEx;
}
return maBitmapEx;
}
bool ImplImage::isEqual(const ImplImage &ref) const
{
if (isStock() != ref.isStock())
return false;
if (isStock())
return maStockName == ref.maStockName;
else
return maBitmapEx == ref.maBitmapEx;
}
BitmapEx const & ImplImage::getBitmapExForHiDPI(bool bDisabled, SalGraphics* pGraphics)
{
if ((isStock() || mxMetaFile) && pGraphics)
{ // check we have the right bitmap cached.
double fScale = 1.0;
pGraphics->ShouldDownscaleIconsAtSurface(&fScale);
Size aTarget(maSizePixel.Width()*fScale,
maSizePixel.Height()*fScale);
if (maBitmapEx.GetSizePixel() != aTarget)
{
if (isStock())
loadStockAtScale(pGraphics, maBitmapEx);
else // if (mxMetaFile)
{
ScopedVclPtrInstance<VirtualDevice> aVDev(DeviceFormat::DEFAULT, DeviceFormat::DEFAULT);
aVDev->SetOutputSizePixel(aTarget);
mxMetaFile->WindStart();
mxMetaFile->Play(*aVDev, Point(), aTarget);
maBitmapEx = aVDev->GetBitmapEx(Point(), aTarget);
}
}
}
return getBitmapEx(bDisabled);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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