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70 lines
2.1 KiB
70 lines
2.1 KiB
/* This file is part of the KDE libraries
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Copyright (C) 2003 Fredrik Höglund <fredrik@kde.org>
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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 Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include <tqimage.h>
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#include <tqfile.h>
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#include <kdemacros.h>
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#include "cursorcreator.h"
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#include <X11/Xlib.h>
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#include <X11/Xcursor/Xcursor.h>
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extern "C"
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{
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KDE_EXPORT ThumbCreator *new_creator()
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{
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return new CursorCreator;
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}
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}
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bool CursorCreator::create( const TQString &path, int width, int height, TQImage &img )
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{
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XcursorImage *cursor = XcursorFilenameLoadImage(
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TQFile::encodeName( path ).data(),
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width > height ? height : width );
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if ( cursor ) {
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img = TQImage( reinterpret_cast<uchar *>( cursor->pixels ),
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cursor->width, cursor->height, 32,
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NULL, 0, TQImage::BigEndian );
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img.setAlphaBuffer( true );
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// Convert the image to non-premultiplied alpha
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TQ_UINT32 *pixels = reinterpret_cast<TQ_UINT32 *>( img.bits() );
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for ( int i = 0; i < (img.width() * img.height()); i++ ) {
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float alpha = tqAlpha( pixels[i] ) / 255.0;
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if ( alpha > 0.0 && alpha < 1.0 )
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pixels[i] = tqRgba( int( tqRed(pixels[i]) / alpha ),
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int( tqGreen(pixels[i]) / alpha ),
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int( tqBlue(pixels[i]) / alpha ),
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tqAlpha(pixels[i]) );
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}
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// Create a deep copy of the image so the image data is preserved
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img = img.copy();
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XcursorImageDestroy( cursor );
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return true;
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}
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return false;
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}
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