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Diffstat (limited to 'kioslave/thumbnail/textcreator.cpp')
| -rw-r--r-- | kioslave/thumbnail/textcreator.cpp | 195 |
1 files changed, 0 insertions, 195 deletions
diff --git a/kioslave/thumbnail/textcreator.cpp b/kioslave/thumbnail/textcreator.cpp deleted file mode 100644 index 322c944a2..000000000 --- a/kioslave/thumbnail/textcreator.cpp +++ /dev/null @@ -1,195 +0,0 @@ -/* This file is part of the KDE libraries - Copyright (C) 2000,2002 Carsten Pfeiffer <pfeiffer@kde.org> - 2000 Malte Starostik <malte@kde.org> - - 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 <tqfile.h> -#include <tqpixmap.h> -#include <tqimage.h> - -#include <kstandarddirs.h> -#include <kpixmapsplitter.h> -#include <kmimetype.h> - -#include "textcreator.h" - -extern "C" -{ - KDE_EXPORT ThumbCreator *new_creator() - { - return new TextCreator; - } -} - -TextCreator::TextCreator() - : m_splitter(0), - m_data(0), - m_dataSize(0) -{ -} - -TextCreator::~TextCreator() -{ - delete m_splitter; - delete [] m_data; -} - -bool TextCreator::create(const TQString &path, int width, int height, TQImage &img) -{ - // Filter out unwanted mimetypes - KMimeType::Ptr mimeType = KMimeType::findByPath( path ); - if ( mimeType->is( "text/rtf" ) ) - return false; - - if ( !m_splitter ) - { - m_splitter = new KPixmapSplitter; - TQString pixmap = locate( "data", "konqueror/pics/thumbnailfont_7x4.png" ); - if ( !pixmap.isEmpty() ) - { - // FIXME: make font/glyphsize configurable... - m_splitter->setPixmap( TQPixmap( pixmap )); - m_splitter->setItemSize( TQSize( 4, 7 )); - } - } - - bool ok = false; - - // determine some sizes... - // example: width: 60, height: 64 - TQSize pixmapSize( width, height ); - if (height * 3 > width * 4) - pixmapSize.setHeight( width * 4 / 3 ); - else - pixmapSize.setWidth( height * 3 / 4 ); - - if ( pixmapSize != m_pixmap.size() ) - m_pixmap.resize( pixmapSize ); - - // one pixel for the rectangle, the rest. whitespace - int xborder = 1 + pixmapSize.width()/16; // minimum x-border - int yborder = 1 + pixmapSize.height()/16; // minimum y-border - - TQSize chSize = m_splitter->itemSize(); // the size of one char - int xOffset = chSize.width(); - int yOffset = chSize.height(); - - // calculate a better border so that the text is centered - int canvasWidth = pixmapSize.width() - 2*xborder; - int canvasHeight = pixmapSize.height() - 2*yborder; - int numCharsPerLine = (int) (canvasWidth / chSize.width()); - int numLines = (int) (canvasHeight / chSize.height()); - - // assumes an average line length of <= 120 chars - const int bytesToRead = 120 * numLines; - - // create text-preview - TQFile file( path ); - if ( file.open( IO_ReadOnly )) - { - if ( !m_data || m_dataSize < bytesToRead + 1 ) - { - delete [] m_data; - m_data = new char[bytesToRead+1]; - m_dataSize = bytesToRead + 1; - } - - int read = file.readBlock( m_data, bytesToRead ); - if ( read > 0 ) - { - ok = true; - m_data[read] = '\0'; - TQString text = TQString::fromLocal8Bit( m_data ); - // FIXME: maybe strip whitespace and read more? - - m_pixmap.fill( TQColor( 245, 245, 245 ) ); // light-grey background - - TQRect rect; - - int rest = m_pixmap.width() - (numCharsPerLine * chSize.width()); - xborder = QMAX( xborder, rest/2); // center horizontally - rest = m_pixmap.height() - (numLines * chSize.height()); - yborder = QMAX( yborder, rest/2); // center vertically - // end centering - - int x = xborder, y = yborder; // where to paint the characters - int posNewLine = m_pixmap.width() - (chSize.width() + xborder); - int posLastLine = m_pixmap.height() - (chSize.height() + yborder); - bool newLine = false; - Q_ASSERT( posNewLine > 0 ); - const TQPixmap *fontPixmap = &(m_splitter->pixmap()); - - for ( uint i = 0; i < text.length(); i++ ) - { - if ( x > posNewLine || newLine ) // start a new line? - { - x = xborder; - y += yOffset; - - if ( y > posLastLine ) // more text than space - break; - - // after starting a new line, we also jump to the next - // physical newline in the file if we don't come from one - if ( !newLine ) - { - int pos = text.find( '\n', i ); - if ( pos == -1 ) - break; - i = pos + 1; - } - - newLine = false; - } - - // check for newlines in the text (unix,dos) - TQChar ch = text.at( i ); - if ( ch == '\n' ) - { - newLine = true; - continue; - } - else if ( ch == '\r' && text.at(i+1) == '\n' ) - { - newLine = true; - i++; // skip the next character (\n) as well - continue; - } - - rect = m_splitter->coordinates( ch ); - if ( !rect.isEmpty() ) - { - bitBlt( &m_pixmap, TQPoint(x,y), fontPixmap, rect, TQt::CopyROP ); - } - - x += xOffset; // next character - } - if (ok) - img = m_pixmap.convertToImage(); - } - - file.close(); - } - return ok; -} - -ThumbCreator::Flags TextCreator::flags() const -{ - return (Flags)(DrawFrame | BlendIcon); -} - |