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Diffstat (limited to 'tdeioslave/thumbnail/cursorcreator.cpp')
-rw-r--r-- | tdeioslave/thumbnail/cursorcreator.cpp | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/tdeioslave/thumbnail/cursorcreator.cpp b/tdeioslave/thumbnail/cursorcreator.cpp new file mode 100644 index 000000000..a8f6a2eb9 --- /dev/null +++ b/tdeioslave/thumbnail/cursorcreator.cpp @@ -0,0 +1,69 @@ +/* This file is part of the KDE libraries + Copyright (C) 2003 Fredrik H�glund <[email protected]> + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + along with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#include <tqimage.h> +#include <tqfile.h> + +#include <kdemacros.h> + +#include "cursorcreator.h" + +#include <X11/Xlib.h> +#include <X11/Xcursor/Xcursor.h> + +extern "C" +{ + KDE_EXPORT ThumbCreator *new_creator() + { + return new CursorCreator; + } +} + +bool CursorCreator::create( const TQString &path, int width, int height, TQImage &img ) +{ + XcursorImage *cursor = XcursorFilenameLoadImage( + TQFile::encodeName( path ).data(), + width > height ? height : width ); + + if ( cursor ) { + img = TQImage( reinterpret_cast<uchar *>( cursor->pixels ), + cursor->width, cursor->height, 32, + NULL, 0, TQImage::BigEndian ); + img.setAlphaBuffer( true ); + + // Convert the image to non-premultiplied alpha + TQ_UINT32 *pixels = reinterpret_cast<TQ_UINT32 *>( img.bits() ); + for ( int i = 0; i < (img.width() * img.height()); i++ ) { + float alpha = tqAlpha( pixels[i] ) / 255.0; + if ( alpha > 0.0 && alpha < 1.0 ) + pixels[i] = tqRgba( int( tqRed(pixels[i]) / alpha ), + int( tqGreen(pixels[i]) / alpha ), + int( tqBlue(pixels[i]) / alpha ), + tqAlpha(pixels[i]) ); + } + + // Create a deep copy of the image so the image data is preserved + img = img.copy(); + XcursorImageDestroy( cursor ); + return true; + } + + return false; +} + |