messageviewer/csshelperbase.h

   1 /*  -*- c++ -*-
   2     csshelper.h
   3
   4     This file is part of KMail, the KDE mail client.
   5     Copyright (c) 2003 Marc Mutz <mutz@kde.org>
   6
   7     KMail is free software; you can redistribute it and/or modify it
   8     under the terms of the GNU General Public License, version 2, as
   9     published by the Free Software Foundation.
  10
  11     KMail is distributed in the hope that it will be useful, but
  12     WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14     General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  19
  20     In addition, as a special exception, the copyright holders give
  21     permission to link the code of this program with any edition of
  22     the Qt library by Trolltech AS, Norway (or with modified versions
  23     of Qt that use the same license as Qt), and distribute linked
  24     combinations including the two.  You must obey the GNU General
  25     Public License in all respects for all of the code used other than
  26     Qt.  If you modify this file, you may extend this exception to
  27     your version of the file, but you are not obligated to do so.  If
  28     you do not wish to do so, delete this exception statement from
  29     your version.
  30 */
  31
  32 #ifndef MESSAGEVIEWER_CSSHELPERBASE_H
  33 #define MESSAGEVIEWER_CSSHELPERBASE_H
  34
  35 #include "messageviewer_export.h"
  36 #include <QColor>
  37 #include <QFont>
  38
  39 class QString;
  40 class QPaintDevice;
  41
  42 namespace MessageViewer {
  43
  44 class MESSAGEVIEWER_EXPORT CSSHelperBase {
  45   public:
  46     /** Construct a CSSHelper object and set its font and color settings to
  47         default values.
  48         Sub-Classes should put their config loading here.
  49      */
  50     CSSHelperBase( const QPaintDevice *pd );
  51
  52     /** @return HTML head including style sheet definitions and the
  53         &gt;body&lt; tag */
  54     QString htmlHead( bool fixedFont = false ) const;
  55
  56     /** @return The collected CSS definitions as a string */
  57     QString cssDefinitions( bool fixedFont = false ) const;
  58
  59     /** @return a &lt;div&gt; start tag with embedded style
  60         information suitable for quoted text with quote level @p level */
  61     QString quoteFontTag( int level ) const;
  62     /** @return a &lt;div&gt; start tag with embedded style
  63         information suitable for non-quoted text */
  64     QString nonQuotedFontTag() const;
  65
  66     QFont bodyFont( bool fixedFont = false, bool printing = false ) const;
  67
  68     void setBodyFont( const QFont& font );
  69     void setPrintFont( const QFont& font );
  70
  71     /** @return the quote color for the given level, where level ranges from 0 to 2 **/
  72     QColor quoteColor( int level );
  73
  74     QColor pgpWarnColor() const;
  75
  76   protected:
  77     /** Recalculate PGP frame and body colors (should be called after changing
  78         color settings) */
  79     void recalculatePGPColors();
  80
  81   protected:
  82     QFont mBodyFont, mPrintFont, mFixedFont, mFixedPrintFont;
  83     QFont mQuoteFont[3];
  84     QColor mQuoteColor[3];
  85     bool mRecycleQuoteColors;
  86     bool mBackingPixmapOn;
  87     bool mShrinkQuotes;
  88     QString mBackingPixmapStr;
  89     QColor mForegroundColor, mLinkColor, mVisitedLinkColor, mBackgroundColor;
  90     // colors for PGP (Frame, Header, Body)
  91     QColor cPgpOk1F, cPgpOk1H, cPgpOk1B,
  92     cPgpOk0F, cPgpOk0H, cPgpOk0B,
  93     cPgpWarnF, cPgpWarnH, cPgpWarnB,
  94     cPgpErrF, cPgpErrH, cPgpErrB,
  95     cPgpEncrF, cPgpEncrH, cPgpEncrB;
  96     // color of frame of warning preceding the source of HTML messages
  97     QColor cHtmlWarning;
  98
  99   private:
 100     int fontSize( bool fixed, bool print = false ) const;
 101      // returns CSS rules specific to the print media type
 102     QString printCssDefinitions( bool fixed ) const;
 103     // returns CSS rules specific to the screen media type
 104     QString screenCssDefinitions( const CSSHelperBase * helper, bool fixed ) const;
 105     // returns CSS rules common to both screen and print media types
 106     QString commonCssDefinitions() const;
 107
 108   private:
 109     const QPaintDevice *mPaintDevice;
 110
 111 };
 112
 113 }
 114
 115 #endif