printout.h

Linux下的基于X11的图形开发环境。

/**********************************************************************
** Copyright (C) 2000-2001 Trolltech AS.  All rights reserved.
**
** This file is part of Qt Linguist.
**
** 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 LICENSE.GPL included in the
** packaging of this file.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact [e-mail] if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/

#ifndef PRINTOUT_H
#define PRINTOUT_H

#include <qfont.h>
#include <qpaintdevicemetrics.h>
#include <qpainter.h>
#include <qrect.h>
#include <qvaluelist.h>
#include <qdatetime.h>

class QPrinter;
class QFontMetrics;

class PrintOut
{
public:
    enum Rule { NoRule, ThinRule, ThickRule };
    enum Style { Normal, Strong, Emphasis };

    PrintOut( QPrinter *printer );
    ~PrintOut();

    void setRule( Rule rule );
    void setGuide( const QString& guide );
    void vskip();
    void flushLine( bool mayBreak = FALSE );
    void addBox( int percent, const QString& text = QString::null,
		 Style style = Normal,
		 int halign = Qt::AlignLeft | Qt::WordBreak );

    int pageNum() const { return page; }

    struct Box
    {
	QRect rect;
	QString text;
	QFont font;
	int align;

	Box() : align( 0 ) { }
	Box( const QRect& r, const QString& t, const QFont& f, int a )
	    : rect( r ), text( t ), font( f ), align( a ) { }
	Box( const Box& b )
	    : rect( b.rect ), text( b.text ), font( b.font ),
	      align( b.align ) { }

	Box& operator=( const Box& b ) {
	    rect = b.rect;
	    text = b.text;
	    font = b.font;
	    align = b.align;
	    return *this;
	}

	bool operator==( const Box& b ) const {
            return rect == b.rect && text == b.text && font == b.font &&
		   align == b.align;
	}
    };

private:
    void breakPage();
    void drawRule( Rule rule );

    struct Paragraph {
	QRect rect;
	QValueList<Box> boxes;

	Paragraph() { }
	Paragraph( QPoint p ) : rect( p, QSize(0, 0) ) { }
    };

    QPrinter *pr;
    QPainter p;
    QFont f8;
    QFont f10;
    QFontMetrics *fmetrics;
    QPaintDeviceMetrics pdmetrics;
    Rule nextRule;
    Paragraph cp;
    int page;
    bool firstParagraph;
    QString g;
    QDateTime dateTime;

    int hmargin;
    int vmargin;
    int voffset;
    int hsize;
    int vsize;
};

#endif