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tdesdk/kbabel/addons/preview/pothumbcreator.cpp

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/*
This file is part of KBabel
Copyright (C) 2001 Matthias Kiefer <kiefer@kde.org>
Text painting code is based on the text file preview textthumbnail by
Copyright (C) 2000 Carsten Pfeiffer <pfeiffer@kde.org>
2000 Malte Starostik <malte@kde.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
In addition, as a special exception, the copyright holders give
permission to link the code of this program with any edition of
the Qt library by Trolltech AS, Norway (or with modified versions
of Qt that use the same license as Qt), and distribute linked
combinations including the two. You must obey the GNU General
Public License in all respects for all of the code used other than
Qt. If you modify this file, you may extend this exception to
your version of the file, but you are not obligated to do so. If
you do not wish to do so, delete this exception statement from
your version.
*/
#include <tqpainter.h>
#include <tqpixmap.h>
#include <tqimage.h>
#include <kapplication.h>
#include <kglobal.h>
#include <kiconloader.h>
#include <kstandarddirs.h>
#include <kpixmapsplitter.h>
#include "pothumbcreator.h"
#include "poinfo.h"
using namespace KBabel;
extern "C"
{
KDE_EXPORT ThumbCreator *new_creator()
{
return new PoThumbCreator;
}
}
PoThumbCreator::PoThumbCreator()
: m_splitter(0)
{
}
PoThumbCreator::~PoThumbCreator()
{
if(m_splitter)
delete m_splitter;
}
bool PoThumbCreator::create(const TQString &path, int width, int height, TQImage &img)
{
if ( !m_splitter )
{
m_splitter = new KPixmapSplitter;
TQString pixmap = locate( "data", "konqueror/pics/thumbnailfont_7x4.png" );
if ( !pixmap.isEmpty() )
{
m_splitter->setPixmap( TQPixmap( pixmap ));
m_splitter->setItemSize( TQSize( 4, 7 ));
}
}
bool ok = false;
PoInfo poInfo;
TQStringList wordList;
// We do not call msgfmt, as a thumbnail must be created fast.
if( PoInfo::info( path, poInfo, wordList, false, true, false ) == OK )
{
ok = true;
TQPixmap pix;
if (height * 3 > width * 4)
pix.resize(width, width * 4 / 3);
else
pix.resize(height * 3 / 4, height);
pix.fill( TQColor( 245, 245, 245 ) ); // light-grey background
// one pixel for the rectangle, the rest. whitespace
int xBorder = 1 + pix.width()/16; // minimum x-border
int yBorder = 1 + pix.height()/16; // minimum y-border
int circle = 16*360;
int fuzzyAngle = poInfo.fuzzy*circle/poInfo.total;
int untransAngle = poInfo.untranslated*circle/poInfo.total;
int w = pix.width()-2*xBorder;
int h = pix.height()*2/3-2*yBorder;
int d = QMIN(w,h);
xBorder = (pix.width()-d)/2;
yBorder = (pix.height()*2/3-d)/2;
TQPainter p(&pix);
if(fuzzyAngle>0)
{
p.setBrush(Qt::blue);
if(poInfo.total == poInfo.fuzzy)
{
p.drawEllipse(xBorder,yBorder,d,d);
}
else
{
p.drawPie(xBorder,yBorder, d, d, 0, -fuzzyAngle);
}
}
if(untransAngle>0)
{
p.setBrush(Qt::red);
if(poInfo.untranslated == poInfo.total)
{
p.drawEllipse(xBorder,yBorder,d,d);
}
else
{
p.drawPie(xBorder,yBorder, d, d, -fuzzyAngle, -untransAngle);
}
}
if(circle - fuzzyAngle - untransAngle>0)
{
p.setBrush(Qt::darkGreen);
if(poInfo.fuzzy==0 && poInfo.untranslated==0)
{
p.drawEllipse(xBorder,yBorder,d,d);
}
else
{
p.drawPie(xBorder,yBorder, d, d, -fuzzyAngle-untransAngle
, -(circle-fuzzyAngle-untransAngle) );
}
}
p.end();
TQRect rect;
TQSize chSize = m_splitter->itemSize(); // the size of one char
int xOffset = chSize.width();
int yOffset = chSize.height();
// one pixel for the rectangle, the rest. whitespace
xBorder = 1 + pix.width()/16; // minimum x-border
yBorder = 1 + pix.height()/16; // minimum y-border
// calculate a better border so that the text is centered
int canvasWidth = pix.width() - 2*xBorder;
int canvasHeight = pix.height()/3 - 2*yBorder;
int numCharsPerLine = (int) (canvasWidth / chSize.width());
int numLines = (int) (canvasHeight / chSize.height());
int rest = pix.width() - (numCharsPerLine * chSize.width());
xBorder = QMAX( xBorder, rest/2); // center horizontally
rest = pix.height()/3 - (numLines * chSize.height());
yBorder = QMAX( yBorder, rest/2); // center vertically
// end centering
TQString text;
if(numCharsPerLine < 30)
{
if(!poInfo.revision.isEmpty())
text += poInfo.revision+'\n';
if(!poInfo.lastTranslator.isEmpty())
text += poInfo.lastTranslator+'\n';
if(!poInfo.languageTeam.isEmpty())
text += poInfo.languageTeam+'\n';
if(!poInfo.contentType.isEmpty())
text += poInfo.contentType+'\n';
if(!poInfo.creation.isEmpty())
text += poInfo.creation+'\n';
if(!poInfo.project.isEmpty())
text += poInfo.project+'\n';
if(!poInfo.mimeVersion.isEmpty())
text += "MIME-Version: "+poInfo.mimeVersion+'\n';
if(!poInfo.encoding.isEmpty())
text += poInfo.encoding+'\n';
int lines = text.contains('\n')+1;
if(lines < numLines)
{
text = poInfo.headerComment+'\n'+text;
if(!poInfo.others.isEmpty())
text += poInfo.others+'\n';
}
if(text.at(text.length()-1) == '\n')
text.truncate(text.length()-1);
}
else
{
if(!poInfo.headerComment.isEmpty())
text += poInfo.headerComment+'\n';
if(!poInfo.project.isEmpty())
text += "Project-Id-Version: "+poInfo.project+'\n';
if(!poInfo.creation.isEmpty())
text += "POT-Creation-Date: "+poInfo.creation+'\n';
if(!poInfo.revision.isEmpty())
text += "PO-Revision-Date: "+ poInfo.revision+'\n';
if(!poInfo.lastTranslator.isEmpty())
text += "Last-Translator: "+poInfo.lastTranslator+'\n';
if(!poInfo.languageTeam.isEmpty())
text += "Language-Team: "+poInfo.languageTeam+'\n';
if(!poInfo.contentType.isEmpty())
text += "Content-Type: "+poInfo.contentType+'\n';
if(!poInfo.mimeVersion.isEmpty())
text += "MIME-Version: "+poInfo.mimeVersion+'\n';
if(!poInfo.encoding.isEmpty())
text += "Content-Transfer-Encoding: "+poInfo.encoding+'\n';
if(!poInfo.others.isEmpty())
text += poInfo.others;
if(text.at(text.length()-1) == '\n')
text.truncate(text.length()-1);
}
/*
double p = ((double)(poInfo.total-poInfo.fuzzy-poInfo.untranslated))*100/poInfo.total;
text = locale->formatNumber(p,0)+'%';
*/
// find the maximum string length to center the text
TQStringList lineList=TQStringList::split('\n',text);
uint max=0;
for( TQStringList::Iterator it = lineList.begin(); it != lineList.end()
; ++it )
{
if((*it).length() > max)
max = (*it).length();
}
rest = pix.width() - (max * chSize.width());
xBorder = QMAX( xBorder, rest/2); // center horizontally
rest = pix.height()/3 - (lineList.count() * chSize.height());
yBorder = QMAX( yBorder, rest/2); // center vertically
// where to paint the characters
int x = xBorder, y = pix.height()*2/3;
int posNewLine = pix.width() - (chSize.width() + xBorder);
int posLastLine = pix.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 > (int) i )
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( &pix, TQPoint(x,y), fontPixmap, rect, Qt::CopyROP );
}
x += xOffset; // next character
}
// very very seldom a babelfish lives in po files and even
// in this seldom cases they are usually hidden ;-)
if(pix.width() > 40 && KApplication::random()%2000 == 0)
{
TQPixmap kbabelPix;
if(pix.width() < 80)
{
kbabelPix = KGlobal::iconLoader()->loadIcon("kbabel"
,KIcon::Small,16,KIcon::DefaultState,0,true);
}
else if(pix.width() < 150)
{
kbabelPix = KGlobal::iconLoader()->loadIcon("kbabel"
,KIcon::Desktop,32,KIcon::DefaultState,0,true);
}
else
{
kbabelPix = KGlobal::iconLoader()->loadIcon("kbabel"
,KIcon::Desktop,48,KIcon::DefaultState,0,true);
}
int x = pix.width()-kbabelPix.width()-4;
x = QMAX(x,0);
if(!kbabelPix.isNull())
{
bitBlt(&pix, TQPoint(x,4), &kbabelPix, kbabelPix.rect()
, Qt::CopyROP);
}
}
img = pix.convertToImage();
}
return ok;
}
ThumbCreator::Flags PoThumbCreator::flags() const
{
return (Flags)(DrawFrame);
}