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Diffstat (limited to 'libtdepim/csshelper.cpp')
| -rw-r--r-- | libtdepim/csshelper.cpp | 647 |
1 files changed, 647 insertions, 0 deletions
diff --git a/libtdepim/csshelper.cpp b/libtdepim/csshelper.cpp new file mode 100644 index 000000000..05f20e390 --- /dev/null +++ b/libtdepim/csshelper.cpp @@ -0,0 +1,647 @@ +/* -*- mode: C++; c-file-style: "gnu" -*- + csshelper.cpp + + This file is part of KMail, the KDE mail client. + Copyright (c) 2003 Marc Mutz <mutz@kde.org> + + KMail is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License, version 2, as + published by the Free Software Foundation. + + KMail 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 TQt library by Trolltech AS, Norway (or with modified versions + of TQt that use the same license as TQt), 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 + TQt. 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 "csshelper.h" + +#include <kconfig.h> +#include <kglobalsettings.h> +#include <kdebug.h> +#include <kglobal.h> + +#include <tqstring.h> +#include <tqapplication.h> + +namespace KPIM { + + namespace { + // some TQColor manipulators that hide the ugly TQColor API w.r.t. HSV: + inline TQColor darker( const TQColor & c ) { + int h, s, v; + c.hsv( &h, &s, &v ); + return TQColor( h, s, v*4/5, TQColor::Hsv ); + } + + inline TQColor desaturate( const TQColor & c ) { + int h, s, v; + c.hsv( &h, &s, &v ); + return TQColor( h, s/8, v, TQColor::Hsv ); + } + + inline TQColor fixValue( const TQColor & c, int newV ) { + int h, s, v; + c.hsv( &h, &s, &v ); + return TQColor( h, s, newV, TQColor::Hsv ); + } + + inline int getValueOf( const TQColor & c ) { + int h, s, v; + c.hsv( &h, &s, &v ); + return v; + } + } + + CSSHelper::CSSHelper( const TQPaintDeviceMetrics &pdm ) : + mShrinkQuotes( false ), + mMetrics( pdm ) + { + // initialize with defaults - should match the corresponding application defaults + mForegroundColor = TQApplication::tqpalette().active().text(); + mLinkColor = KGlobalSettings::linkColor(); + mVisitedLinkColor = KGlobalSettings::visitedLinkColor(); + mBackgroundColor = TQApplication::tqpalette().active().base(); + cHtmlWarning = TQColor( 0xFF, 0x40, 0x40 ); // warning frame color: light red + + cPgpEncrH = TQColor( 0x00, 0x80, 0xFF ); // light blue + cPgpOk1H = TQColor( 0x40, 0xFF, 0x40 ); // light green + cPgpOk0H = TQColor( 0xFF, 0xFF, 0x40 ); // light yellow + cPgpWarnH = TQColor( 0xFF, 0xFF, 0x40 ); // light yellow + cPgpErrH = TQt::red; + + for ( int i = 0 ; i < 3 ; ++i ) + mQuoteColor[i] = TQColor( 0x00, 0x80 - i * 0x10, 0x00 ); // shades of green + mRecycleQuoteColors = false; + + TQFont defaultFont = KGlobalSettings::generalFont(); + TQFont defaultFixedFont = KGlobalSettings::fixedFont(); + mBodyFont = mPrintFont = defaultFont; + mFixedFont = mFixedPrintFont = defaultFixedFont; + defaultFont.setItalic( true ); + for ( int i = 0 ; i < 3 ; ++i ) + mQuoteFont[i] = defaultFont; + + mBackingPixmapOn = false; + + recalculatePGPColors(); + } + + void CSSHelper::recalculatePGPColors() { + // determine the frame and body color for PGP messages from the header color + // if the header color equals the background color then the other colors are + // also set to the background color (-> old style PGP message viewing) + // else + // the brightness of the frame is set to 4/5 of the brightness of the header + // and in case of a light background color + // the saturation of the body is set to 1/8 of the saturation of the header + // while in case of a dark background color + // the value of the body is set to the value of the background color + + // Check whether the user uses a light color scheme + const int vBG = getValueOf( mBackgroundColor ); + const bool lightBG = vBG >= 128; + if ( cPgpOk1H == mBackgroundColor ) { + cPgpOk1F = mBackgroundColor; + cPgpOk1B = mBackgroundColor; + } else { + cPgpOk1F= darker( cPgpOk1H ); + cPgpOk1B = lightBG ? desaturate( cPgpOk1H ) : fixValue( cPgpOk1H, vBG ); + } + if ( cPgpOk0H == mBackgroundColor ) { + cPgpOk0F = mBackgroundColor; + cPgpOk0B = mBackgroundColor; + } else { + cPgpOk0F = darker( cPgpOk0H ); + cPgpOk0B = lightBG ? desaturate( cPgpOk0H ) : fixValue( cPgpOk0H, vBG ); + } + if ( cPgpWarnH == mBackgroundColor ) { + cPgpWarnF = mBackgroundColor; + cPgpWarnB = mBackgroundColor; + } else { + cPgpWarnF = darker( cPgpWarnH ); + cPgpWarnB = lightBG ? desaturate( cPgpWarnH ) : fixValue( cPgpWarnH, vBG ); + } + if ( cPgpErrH == mBackgroundColor ) { + cPgpErrF = mBackgroundColor; + cPgpErrB = mBackgroundColor; + } else { + cPgpErrF = darker( cPgpErrH ); + cPgpErrB = lightBG ? desaturate( cPgpErrH ) : fixValue( cPgpErrH, vBG ); + } + if ( cPgpEncrH == mBackgroundColor ) { + cPgpEncrF = mBackgroundColor; + cPgpEncrB = mBackgroundColor; + } else { + cPgpEncrF = darker( cPgpEncrH ); + cPgpEncrB = lightBG ? desaturate( cPgpEncrH ) : fixValue( cPgpEncrH, vBG ); + } + } + + TQString CSSHelper::cssDefinitions( bool fixed ) const { + return + commonCssDefinitions() + + + "@media screen {\n\n" + + + screenCssDefinitions( this, fixed ) + + + "}\n" + "@media print {\n\n" + + + printCssDefinitions( fixed ) + + + "}\n"; + } + + TQString CSSHelper::htmlHead( bool /*fixed*/ ) const { + return + "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">\n" + "<html><head><title></title></head>\n" + "<body>\n"; + } + + TQString CSSHelper::quoteFontTag( int level ) const { + if ( level < 0 ) + level = 0; + static const int numQuoteLevels = sizeof mQuoteFont / sizeof *mQuoteFont; + const int effectiveLevel = mRecycleQuoteColors + ? level % numQuoteLevels + 1 + : kMin( level + 1, numQuoteLevels ) ; + if ( level >= numQuoteLevels ) + return TQString( "<div class=\"deepquotelevel%1\">" ).tqarg( effectiveLevel ); + else + return TQString( "<div class=\"quotelevel%1\">" ).tqarg( effectiveLevel ); + } + + TQString CSSHelper::nonQuotedFontTag() const { + return "<div class=\"noquote\">"; + } + + TQFont CSSHelper::bodyFont( bool fixed, bool print ) const { + return fixed ? ( print ? mFixedPrintFont : mFixedFont ) + : ( print ? mPrintFont : mBodyFont ); + } + + int CSSHelper::fontSize( bool fixed, bool print ) const { + return bodyFont( fixed, print ).pointSize(); + } + + + namespace { + int pointsToPixel( const TQPaintDeviceMetrics & metrics, int pointSize ) { + return ( pointSize * metrics.logicalDpiY() + 36 ) / 72 ; + } + } + + static const char * const quoteFontSizes[] = { "85", "80", "75" }; + + TQString CSSHelper::printCssDefinitions( bool fixed ) const { + const TQString headerFont = TQString( " font-family: \"%1\" ! important;\n" + " font-size: %2pt ! important;\n" ) + .tqarg( mPrintFont.family() ) + .tqarg( mPrintFont.pointSize() ); + const TQColorGroup & cg = TQApplication::tqpalette().active(); + + const TQFont printFont = bodyFont( fixed, true /* print */ ); + TQString quoteCSS; + if ( printFont.italic() ) + quoteCSS += " font-style: italic ! important;\n"; + if ( printFont.bold() ) + quoteCSS += " font-weight: bold ! important;\n"; + if ( !quoteCSS.isEmpty() ) + quoteCSS = "div.noquote {\n" + quoteCSS + "}\n\n"; + + return + TQString( "body {\n" + " font-family: \"%1\" ! important;\n" + " font-size: %2pt ! important;\n" + " color: #000000 ! important;\n" + " background-color: #ffffff ! important\n" + "}\n\n" ) + .tqarg( printFont.family(), + TQString::number( printFont.pointSize() ) ) + + + TQString( "tr.textAtmH,\n" + "tr.signInProgressH,\n" + "tr.rfc822H,\n" + "tr.encrH,\n" + "tr.signOkKeyOkH,\n" + "tr.signOkKeyBadH,\n" + "tr.signWarnH,\n" + "tr.signErrH,\n" + "div.header {\n" + "%1" + "}\n\n" + + "div.fancy.header > div {\n" + " background-color: %2 ! important;\n" + " color: %3 ! important;\n" + " padding: 4px ! important;\n" + " border: solid %3 1px ! important;\n" + "}\n\n" + + "div.fancy.header > div a[href] { color: %3 ! important; }\n\n" + + "div.fancy.header > table.outer{\n" + " background-color: %2 ! important;\n" + " color: %3 ! important;\n" + " border-bottom: solid %3 1px ! important;\n" + " border-left: solid %3 1px ! important;\n" + " border-right: solid %3 1px ! important;\n" + "}\n\n" + + "div.spamheader {\n" + " display:none ! important;\n" + "}\n\n" + + "div.htmlWarn {\n" + " border: 2px solid #ffffff ! important;\n" + "}\n\n" + + "div.senderpic{\n" + " font-size:0.8em ! important;\n" + " border:1px solid black ! important;\n" + " background-color:%2 ! important;\n" + "}\n\n" + + "div.senderstatus{\n" + " text-align:center ! important;\n" + "}\n\n" + + "div.noprint {\n" + " display:none ! important;\n" + "}\n\n" + ) + .tqarg( headerFont, + cg.background().name(), + cg.foreground().name() ) + + quoteCSS; + } + + TQString CSSHelper::screenCssDefinitions( const CSSHelper * helper, bool fixed ) const { + const TQString fgColor = mForegroundColor.name(); + const TQString bgColor = mBackgroundColor.name(); + const TQString linkColor = mLinkColor.name(); + const TQString headerFont = TQString(" font-family: \"%1\" ! important;\n" + " font-size: %2px ! important;\n") + .tqarg( mBodyFont.family() ) + .tqarg( pointsToPixel( helper->mMetrics, mBodyFont.pointSize() ) ); + const TQString background = ( mBackingPixmapOn + ? TQString( " background-image:url(file://%1) ! important;\n" ) + .tqarg( mBackingPixmapStr ) + : TQString( " background-color: %1 ! important;\n" ) + .tqarg( bgColor ) ); + const TQString bodyFontSize = TQString::number( pointsToPixel( helper->mMetrics, fontSize( fixed ) ) ) + "px" ; + const TQColorGroup & cg = TQApplication::tqpalette().active(); + + TQString quoteCSS; + if ( bodyFont( fixed ).italic() ) + quoteCSS += " font-style: italic ! important;\n"; + if ( bodyFont( fixed ).bold() ) + quoteCSS += " font-weight: bold ! important;\n"; + if ( !quoteCSS.isEmpty() ) + quoteCSS = "div.noquote {\n" + quoteCSS + "}\n\n"; + + // CSS definitions for quote levels 1-3 + for ( int i = 0 ; i < 3 ; ++i ) { + quoteCSS += TQString( "div.quotelevel%1 {\n" + " color: %2 ! important;\n" ) + .tqarg( TQString::number(i+1), mQuoteColor[i].name() ); + if ( mQuoteFont[i].italic() ) + quoteCSS += " font-style: italic ! important;\n"; + if ( mQuoteFont[i].bold() ) + quoteCSS += " font-weight: bold ! important;\n"; + if ( mShrinkQuotes ) + quoteCSS += " font-size: " + TQString::tqfromLatin1( quoteFontSizes[i] ) + + "% ! important;\n"; + quoteCSS += "}\n\n"; + } + + // CSS definitions for quote levels 4+ + for ( int i = 0 ; i < 3 ; ++i ) { + quoteCSS += TQString( "div.deepquotelevel%1 {\n" + " color: %2 ! important;\n" ) + .tqarg( TQString::number(i+1), mQuoteColor[i].name() ); + if ( mQuoteFont[i].italic() ) + quoteCSS += " font-style: italic ! important;\n"; + if ( mQuoteFont[i].bold() ) + quoteCSS += " font-weight: bold ! important;\n"; + if ( mShrinkQuotes ) + quoteCSS += " font-size: 70% ! important;\n"; + quoteCSS += "}\n\n"; + } + + return + TQString( "body {\n" + " font-family: \"%1\" ! important;\n" + " font-size: %2 ! important;\n" + " color: %3 ! important;\n" + "%4" + "}\n\n" ) + .tqarg( bodyFont( fixed ).family(), + bodyFontSize, + fgColor, + background ) + + + TQString( "a {\n" + " color: %1 ! important;\n" + " text-decoration: none ! important;\n" + "}\n\n" + + "a.white {\n" + " color: white ! important;\n" + "}\n\n" + + "a.black {\n" + " color: black ! important;\n" + "}\n\n" + + "table.textAtm { background-color: %2 ! important; }\n\n" + + "tr.textAtmH {\n" + " background-color: %3 ! important;\n" + "%4" + "}\n\n" + + "tr.textAtmB {\n" + " background-color: %3 ! important;\n" + "}\n\n" + + "table.signInProgress,\n" + "table.rfc822 {\n" + " background-color: %3 ! important;\n" + "}\n\n" + + "tr.signInProgressH,\n" + "tr.rfc822H {\n" + "%4" + "}\n\n" ) + .tqarg( linkColor, fgColor, bgColor, headerFont ) + + + TQString( "table.encr {\n" + " background-color: %1 ! important;\n" + "}\n\n" + + "tr.encrH {\n" + " background-color: %2 ! important;\n" + "%3" + "}\n\n" + + "tr.encrB { background-color: %4 ! important; }\n\n" ) + .tqarg( cPgpEncrF.name(), + cPgpEncrH.name(), + headerFont, + cPgpEncrB.name() ) + + + TQString( "table.signOkKeyOk {\n" + " background-color: %1 ! important;\n" + "}\n\n" + + "tr.signOkKeyOkH {\n" + " background-color: %2 ! important;\n" + "%3" + "}\n\n" + + "tr.signOkKeyOkB { background-color: %4 ! important; }\n\n" ) + .tqarg( cPgpOk1F.name(), + cPgpOk1H.name(), + headerFont, + cPgpOk1B.name() ) + + + TQString( "table.signOkKeyBad {\n" + " background-color: %1 ! important;\n" + "}\n\n" + + "tr.signOkKeyBadH {\n" + " background-color: %2 ! important;\n" + "%3" + "}\n\n" + + "tr.signOkKeyBadB { background-color: %4 ! important; }\n\n" ) + .tqarg( cPgpOk0F.name(), + cPgpOk0H.name(), + headerFont, + cPgpOk0B.name() ) + + + TQString( "table.signWarn {\n" + " background-color: %1 ! important;\n" + "}\n\n" + + "tr.signWarnH {\n" + " background-color: %2 ! important;\n" + "%3" + "}\n\n" + + "tr.signWarnB { background-color: %4 ! important; }\n\n" ) + .tqarg( cPgpWarnF.name(), + cPgpWarnH.name(), + headerFont, + cPgpWarnB.name() ) + + + TQString( "table.signErr {\n" + " background-color: %1 ! important;\n" + "}\n\n" + + "tr.signErrH {\n" + " background-color: %2 ! important;\n" + "%3" + "}\n\n" + + "tr.signErrB { background-color: %4 ! important; }\n\n" ) + .tqarg( cPgpErrF.name(), + cPgpErrH.name(), + headerFont, + cPgpErrB.name() ) + + + TQString( "div.htmlWarn {\n" + " border: 2px solid %1 ! important;\n" + "}\n\n" ) + .tqarg( cHtmlWarning.name() ) + + + TQString( "div.header {\n" + "%1" + "}\n\n" + + "div.fancy.header > div {\n" + " background-color: %2 ! important;\n" + " color: %3 ! important;\n" + " border: solid %4 1px ! important;\n" + "}\n\n" + + "div.fancy.header > div a[href] { color: %3 ! important; }\n\n" + + "div.fancy.header > div a[href]:hover { text-decoration: underline ! important; }\n\n" + + "div.fancy.header > div.spamheader {\n" + " background-color: #cdcdcd ! important;\n" + " border-top: 0px ! important;\n" + " padding: 3px ! important;\n" + " color: black ! important;\n" + " font-weight: bold ! important;\n" + " font-size: smaller ! important;\n" + "}\n\n" + + "div.fancy.header > table.outer {\n" + " background-color: %5 ! important;\n" + " color: %4 ! important;\n" + " border-bottom: solid %4 1px ! important;\n" + " border-left: solid %4 1px ! important;\n" + " border-right: solid %4 1px ! important;\n" + "}\n\n" + + "div.senderpic{\n" + " padding: 0px ! important;\n" + " font-size:0.8em ! important;\n" + " border:1px solid %6 ! important;\n" + // FIXME: InfoBackground crashes KHTML + //" background-color:InfoBackground ! important;\n" + " background-color:%5 ! important;\n" + "}\n\n" + + "div.senderstatus{\n" + " text-align:center ! important;\n" + "}\n\n" + ) + + .tqarg( headerFont ) + .tqarg( cg.highlight().name(), + cg.highlightedText().name(), + cg.foreground().name(), + cg.background().name() ) + .tqarg( cg.mid().name() ) + + quoteCSS; + } + + TQString CSSHelper::commonCssDefinitions() const { + return + "div.header {\n" + " margin-bottom: 10pt ! important;\n" + "}\n\n" + + "table.textAtm {\n" + " margin-top: 10pt ! important;\n" + " margin-bottom: 10pt ! important;\n" + "}\n\n" + + "tr.textAtmH,\n" + "tr.textAtmB,\n" + "tr.rfc822B {\n" + " font-weight: normal ! important;\n" + "}\n\n" + + "tr.signInProgressH,\n" + "tr.rfc822H,\n" + "tr.encrH,\n" + "tr.signOkKeyOkH,\n" + "tr.signOkKeyBadH,\n" + "tr.signWarnH,\n" + "tr.signErrH {\n" + " font-weight: bold ! important;\n" + "}\n\n" + + "tr.textAtmH td,\n" + "tr.textAtmB td {\n" + " padding: 3px ! important;\n" + "}\n\n" + + "table.rfc822 {\n" + " width: 100% ! important;\n" + " border: solid 1px black ! important;\n" + " margin-top: 10pt ! important;\n" + " margin-bottom: 10pt ! important;\n" + "}\n\n" + + "table.textAtm,\n" + "table.encr,\n" + "table.signWarn,\n" + "table.signErr,\n" + "table.signOkKeyBad,\n" + "table.signOkKeyOk,\n" + "table.signInProgress,\n" + "div.fancy.header table {\n" + " width: 100% ! important;\n" + " border-width: 0px ! important;\n" + "}\n\n" + + "div.htmlWarn {\n" + " margin: 0px 5% ! important;\n" + " padding: 10px ! important;\n" + " text-align: left ! important;\n" + "}\n\n" + + "div.fancy.header > div {\n" + " font-weight: bold ! important;\n" + " padding: 4px ! important;\n" + "}\n\n" + + "div.fancy.header table {\n" + " padding: 2px ! important;\n" // ### khtml bug: this is ignored + " text-align: left ! important\n" + "}\n\n" + + "div.fancy.header table th {\n" + " padding: 0px ! important;\n" + " white-space: nowrap ! important;\n" + " border-spacing: 0px ! important;\n" + " text-align: left ! important;\n" + " vertical-align: top ! important;\n" + "}\n\n" + + "div.fancy.header table td {\n" + " padding: 0px ! important;\n" + " border-spacing: 0px ! important;\n" + " text-align: left ! important;\n" + " vertical-align: top ! important;\n" + " width: 100% ! important;\n" + "}\n\n" + + "span.pimsmileytext {\n" + " position: absolute;\n" + " top: 0px;\n" + " left: 0px;\n" + " visibility: hidden;\n" + "}\n\n" + + "img.pimsmileyimg {\n" + "}\n\n" + + "div.quotelevelmark {\n" + " position: absolute;\n" + " margin-left:-10px;\n" + "}\n\n" + ; + } + + + void CSSHelper::setBodyFont( const TQFont& font ) + { + mBodyFont = font; + } + + void CSSHelper::setPrintFont( const TQFont& font ) + { + mPrintFont = font; + } + + TQColor CSSHelper::pgpWarnColor() const + { + return cPgpWarnH; + } + +} // namespace KPIM |