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Diffstat (limited to 'kooka/kookaprint.cpp')
| -rw-r--r-- | kooka/kookaprint.cpp | 410 |
1 files changed, 410 insertions, 0 deletions
diff --git a/kooka/kookaprint.cpp b/kooka/kookaprint.cpp new file mode 100644 index 00000000..6e0554e9 --- /dev/null +++ b/kooka/kookaprint.cpp @@ -0,0 +1,410 @@ +/*************************************************************************** + kookaprint.cpp - Printing from the gallery + ------------------- + begin : Tue May 13 2003 + copyright : (C) 1999 by Klaas Freitag + email : freitag@suse.de + ***************************************************************************/ + +/*************************************************************************** + * * + * This file may be distributed and/or modified under the terms of the * + * GNU General Public License version 2 as published by the Free Software * + * Foundation and appearing in the file COPYING included in the * + * packaging of this file. * + * + * As a special exception, permission is given to link this program * + * with any version of the KADMOS ocr/icr engine of reRecognition GmbH, * + * Kreuzlingen and distribute the resulting executable without * + * including the source code for KADMOS in the source distribution. * + * + * As a special exception, permission is given to link this program * + * with any edition of Qt, and distribute the resulting executable, * + * without including the source code for Qt in the source distribution. * + * * + ***************************************************************************/ + +#include "kookaprint.h" +#include "kookaimage.h" +#include <kprinter.h> +#include <qpainter.h> +#include <qpaintdevicemetrics.h> +#include <qfontmetrics.h> +#include "imgprintdialog.h" +#include <kdebug.h> +#include <klocale.h> + +KookaPrint::KookaPrint( KPrinter *printer ) + :QObject(), + m_printer(printer), + m_extraMarginPercent(10) +{ + +} + +bool KookaPrint::printImage( KookaImage *img ) +{ + bool result = true; + if( ! m_printer || !img) return false; + + QString psMode = m_printer->option( OPT_PSGEN_DRAFT ); + kdDebug(28000) << "User setting for quality: " << psMode << endl; + +#if 0 + if( psMode == "1" ) + m_printer->setResolution( 75 ); + else + m_printer->setResolution( 600 ); +#endif + + /* Create painter _after_ setting Resolution */ + QPainter painter(m_printer); + m_painter = &painter; + KookaImage tmpImg; + QPoint pt(0, 0); // the top-left corner (image will be centered) + + // We use a QPaintDeviceMetrics to know the actual page size in pixel, + // this gives the real painting area + QPaintDeviceMetrics printermetrics( m_painter->device() ); + + int screenRes = m_printer->option( OPT_SCREEN_RES ).toInt(); + // int printerRes = printermetrics.logicalDpiX(); + int printerRes = m_printer->resolution(); + + QString scale = m_printer->option( OPT_SCALING ); + + int reso = screenRes; + + if( scale == "scan" ) + { + /* Scale to original size */ + reso = m_printer->option( OPT_SCAN_RES ).toInt(); + } + else if( scale == "custom" ) + { + // kdDebug(28000) << "Not yet implemented: Custom scale" << endl; + double userWidthInch = (m_printer->option( OPT_WIDTH ).toDouble() / 25.4 ); + reso = int( double(img->width()) / userWidthInch ); + + kdDebug(28000) << "Custom resolution: " << reso << endl; + + } + else if( scale == "fitpage" ) + { + kdDebug(28000) << "Printing using maximum space on page" << endl; + printFittingToPage( img ); + reso = 0; // to skip the printing on this page. + } + + /* Scale the image for printing */ + kdDebug(28000) << "Printer-Resolution: " << printerRes << " and scale-Reso: " << reso << endl; + QSize margins = m_printer->margins(); + kdDebug(28000) << "Printer-Margins left: " << margins.width() << " and top " << margins.height() + << endl; + if( reso > 0) + { + double sizeInch = double(img->width()) / double(reso); + int newWidth = int(sizeInch * printerRes); + + printerRes = printermetrics.logicalDpiY(); + sizeInch = double(img->height()) / double(reso); + int newHeight = int(sizeInch * printerRes ); + + kdDebug(28000) << "Scaling to printer size " << newWidth << " x " << newHeight << endl; + + tmpImg = img->smoothScale(newWidth, newHeight, QImage::ScaleFree); + + QSize sz = tmpImg.size(); // the current image size + QSize maxOnPage = maxPageSize(); // the maximum space on one side + + int maxRows, maxCols; + int subpagesCnt = tmpImg.cutToTiles( maxOnPage, maxRows, maxCols ); + + kdDebug(28000) << "Subpages count: " << subpagesCnt << + " Columns:" << maxCols << " Rows:" << maxRows << endl; + + int cnt = 0; + + for( int row = 0; row < maxRows; row++ ) + { + for( int col = 0; col < maxCols; col++ ) + { + const QRect part = tmpImg.getTileRect( row, col ); + const QSize imgSize = part.size(); + + kdDebug(28000) << "Printing part from " << part.x() << "/" << part.y() + << " width:"<< part.width() << " and height " << part.height() << endl; + QImage tileImg = tmpImg.copy( part ); + + m_painter->drawImage( printPosTopLeft(imgSize), tileImg ); + drawCornerMarker( imgSize, row, col, maxRows, maxCols ); + cnt++; + if( cnt < subpagesCnt ) + m_printer->newPage(); + } + } + } + + m_painter = 0; // no, this is not a memory leak. + return result; +} + +void KookaPrint::printFittingToPage(KookaImage *img) +{ + if( ! img || ! m_painter ) return; + + KookaImage tmpImg; + + QString psMode = m_printer->option( OPT_RATIO ); + bool maintainAspect = (psMode == "1"); + + QSize s = maxPageSize(); + + double wAspect = double(s.width()) / double(img->width()); + double hAspect = double(s.height()) / double(img->height()); + + // take the smaller one. + double aspect = wAspect; + if( hAspect < wAspect ) aspect = hAspect; + + // default: maintain aspect ratio. + int newWidth = int( double( img->width() ) * aspect ); + int newHeight = int( double( img->height()) * aspect ); + + if( ! maintainAspect ) + { + newWidth = int( double( img->width() ) * wAspect ); + newHeight = int( double( img->height() ) * hAspect ); + } + + tmpImg = img->smoothScale(newWidth, newHeight, QImage::ScaleFree); + + m_painter->drawImage( 0,0, tmpImg ); + +} + + +void KookaPrint::drawMarkerAroundPoint( const QPoint& p ) +{ + if( ! m_painter ) return; + const int len = 10; + + m_painter->drawLine( p-QPoint(len,0), p+QPoint(len,0)); + m_painter->drawLine( p-QPoint(0,len), p+QPoint(0,len)); + +} + + +void KookaPrint::drawCutSign( const QPoint& p, int num, MarkerDirection dir ) +{ + QBrush saveB = m_painter->brush(); + int start = 0; + const int radius=20; + + QColor brushColor( Qt::red ); + int toffX=0; + int toffY=0; + QString numStr = QString::number(num); + + QFontMetrics fm = m_painter->fontMetrics(); + int textWidth = fm.width( numStr )/2; + int textHeight = fm.width( numStr )/2; + int textYOff = 0; + int textXOff = 0; + switch( dir ) + { + case SW: + start = -90; + brushColor = Qt::green; + toffX =-1; + toffY = 1; + textXOff = -1*textWidth; + textYOff = textHeight; + break; + case NW: + start = -180; + brushColor = Qt::blue; + toffX =-1; + toffY =-1; + textXOff = -1*textWidth; + textYOff = textHeight; + break; + case NO: + start = -270; + brushColor = Qt::yellow; + toffX = 1; + toffY = -1; + textXOff = -1*textWidth; + textYOff = textHeight; + + break; + case SO: + start = 0; + brushColor = Qt::magenta; + toffX = 1; + toffY = 1; + textXOff = -1*textWidth; + textYOff = textHeight; + break; + default: + start = 0; + } + + /* to draw around the point p, subtraction of the half radius is needed */ + int x = p.x()-radius/2; + int y = p.y()-radius/2; + + // m_painter->drawRect( x, y, radius, radius ); /* debug !!! */ + const int tAway = radius*3/4; + + QRect bRect = fm.boundingRect( QString::number(num)); + int textX = p.x()+ tAway * toffX + textXOff; + int textY = p.y()+ tAway * toffY + textYOff; + + // m_painter->drawRect( textX, textY, bRect.width(), bRect.height() ); + kdDebug(28000) << "Drawing to position " << textX << "/" << textY << endl; + m_painter->drawText( textX, + textY, + QString::number(num)); + QBrush b( brushColor, NoBrush /* remove this to get debug color*/ ); + + + m_painter->setBrush( b ); + m_painter->drawPie( x, y, radius, radius, 16*start, -16*90 ); + + m_painter->setBrush( saveB ); +} + + +/* + * draws the circle and the numbers that indicate the pages to glue to the side + */ +void KookaPrint::drawCornerMarker( const QSize& imgSize, int row, int col, int maxRows, int maxCols ) +{ + QPoint p; + + kdDebug(28000) << "Marker: Row: " << row << " and col " << col <<" from max " + << maxRows << "x" << maxCols << endl; + + // Top left. + p = printPosTopLeft( imgSize ); + drawMarkerAroundPoint( p ); + int indx = maxCols*row+col+1; + if( maxRows > 1 || maxCols > 1 ) + { + if( col > 0 ) + drawCutSign( p, indx-1, SW ); + if( row > 0 ) + drawCutSign( p, indx-maxCols, NO ); + + if( row > 0 && col > 0 ) + drawCutSign( p, indx-maxCols-1, NW ); + } + + // Top Right + p = printPosTopRight( imgSize ); + drawMarkerAroundPoint( p ); + if( maxRows > 1 || maxCols > 1 ) + { + if( col < maxCols-1 ) + drawCutSign( p, indx+1, SO ); + if( row > 0 ) + drawCutSign( p, indx-maxCols, NW ); + if( row > 0 && col < maxCols-1 ) + drawCutSign( p, indx-maxCols+1, NO ); + } + + // Bottom Right + p = printPosBottomRight( imgSize ); + if( maxRows > 1 || maxCols > 1 ) + { + if( col < maxCols-1 ) + drawCutSign( p, indx+1, NO ); + if( row < maxRows-1 ) + drawCutSign( p, indx+maxCols, SW ); + if( row < maxRows -1 && col < maxCols-1 ) + drawCutSign( p, indx+maxCols, SO ); + } + + // p += QPoint( 1, 1 ); + drawMarkerAroundPoint( p ); /* at bottom right */ + + /* Bottom left */ + p = printPosBottomLeft( imgSize ); + // p += QPoint( -1, 1 ); + if( maxRows > 1 || maxCols > 1 ) + { + if( col > 0 ) + drawCutSign( p, indx-1, NW ); + if( row < maxRows-1 ) + drawCutSign( p, indx+maxCols, SO ); + if( row < maxRows -1 && col > 0 ) + drawCutSign( p, indx+maxCols-1, SW ); + } + drawMarkerAroundPoint( p ); /* at bottom left */ +} + +QSize KookaPrint::maxPageSize( int extraShrinkPercent ) const +{ + if( ! m_painter ) return QSize(); + QPaintDeviceMetrics printermetrics( m_painter->device() ); + + double extraShrink = double(100-extraShrinkPercent)/100.0; + + QSize retSize( printermetrics.width(), printermetrics.height() ); + + if( extraShrinkPercent > 0 ) + retSize = QSize( int(double(printermetrics.width())* extraShrink) , + int(double(printermetrics.height())* extraShrink )); + return retSize; +} + +int KookaPrint::extraMarginPix() const +{ + QSize max = maxPageSize(); + /* take the half extra margin */ + return int(double(max.width())*double(m_extraMarginPercent) / 100.0 / 2.0); +} + +QPoint KookaPrint::printPosTopLeft( const QSize& imgSize ) const +{ + QSize max = maxPageSize(); + /* take the half extra margin */ + int eMargin = extraMarginPix(); + + return QPoint( eMargin + (max.width() - imgSize.width())/2, + eMargin + (max.height() - imgSize.height())/2 ); +} + +QPoint KookaPrint::printPosTopRight(const QSize& imgSize) const +{ + QSize max = maxPageSize(); + /* take the half extra margin */ + int eMargin = extraMarginPix(); + + return QPoint( eMargin + (max.width() - imgSize.width())/2+imgSize.width(), + eMargin + (max.height() - imgSize.height())/2 ); +} + +QPoint KookaPrint::printPosBottomLeft(const QSize& imgSize) const +{ + QSize max = maxPageSize(); + int eMargin = extraMarginPix(); + /* take the half extra margin */ + return QPoint( eMargin+(max.width() - imgSize.width())/2, + eMargin+(max.height() - imgSize.height())/2 + imgSize.height() ); +} + +QPoint KookaPrint::printPosBottomRight(const QSize& imgSize) const +{ + QSize max = maxPageSize(); + /* take the half extra margin */ + int eMargin = extraMarginPix(); + + return QPoint( eMargin+(max.width() - imgSize.width())/2 + imgSize.width(), + eMargin+(max.height() - imgSize.height())/2 + imgSize.height() ); +} + + + +#include "kookaprint.moc" |