# khtml Library API Documentation

Overview | Class Hierarchy | Classes | Classes (annotated) | Members | Source Files

# helper.cpp

    00001 /*
    00002  * This file is part of the CSS implementation for KDE.
    00003  *
    00004  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
    00005  *
    00006  * This library is free software; you can redistribute it and/or
    00007  * modify it under the terms of the GNU Library General Public
    00008  * License as published by the Free Software Foundation; either
    00009  * version 2 of the License, or (at your option) any later version.
    00010  *
    00011  * This library is distributed in the hope that it will be useful,
    00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00014  * Library General Public License for more details.
    00015  *
    00016  * You should have received a copy of the GNU Library General Public License
    00017  * along with this library; see the file COPYING.LIB.  If not, write to
    00018  * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    00019  * Boston, MA 02111-1307, USA.
    00020  *
    00021  * $Id: helper.cpp,v 1.51.2.5 2003/07/15 10:42:18 mueller Exp $
    00022  */
    00023 #include "helper.h"
    00024 #include <khtmllayout.h>
    00025 #include <qmap.h>
    00026 #include <qpainter.h>
    00027 #include <dom/dom_string.h>
    00028 #include <xml/dom_stringimpl.h>
    00029 #include <qptrlist.h>
    00030 #include <kstaticdeleter.h>
    00031 #include <kapplication.h>
    00032 #include <kconfig.h>
    00033 #include <qtooltip.h>
    00034
    00035 using namespace DOM;
    00036 using namespace khtml;
    00037
    00038 struct HTMLColors {
    00039     QMap<QString,QColor> map;
    00040     HTMLColors();
    00041 };
    00042
    00043 struct colorMap {
    00044     const char * name;
    00045     const char * value;
    00046 };
    00047
    00048 static const colorMap cmap[] = {
    00049    { "green", "#008000" },
    00050    { "gray", "#808080" },
    00051    { "grey", "#808080" },
    00052    { "silver", "#c0c0c0" },
    00053    { "lime", "#00ff00" },
    00054    { "olive", "#808000" },
    00055    { "maroon", "#800000" },
    00056    { "purple", "#800080" },
    00057    { "teal", "#008080" },
    00058    { "fuchsia", "#ff00ff" },
    00059    { "aqua", "#00ffff" },
    00060    { "crimson", "#dc143c" },
    00061    { "indigo", "#4b0082" },
    00062    { 0, 0 }
    00063 };
    00064
    00065 struct uiColors {
    00066     const char * name;
    00067     const char * configGroup;
    00068     const char * configEntry;
    00069     QPalette::ColorGroup group;
    00070     QColorGroup::ColorRole role;
    00071 };
    00072
    00073 const char * const wmgroup = "WM";
    00074 const char * const generalgroup = "General";
    00075
    00076 static const uiColors uimap[] = {
    00077         // Active window border.
    00078     { "activeborder", wmgroup, "background", QPalette::Active, QColorGroup::Light },
    00079         // Active window caption.
    00080     { "activecaption", wmgroup, "background", QPalette::Active, QColorGroup::Text },
    00081         // Text in caption, size box, and scrollbar arrow box.
    00082     { "captiontext", wmgroup, "activeForeground", QPalette::Active, QColorGroup::Text },
    00083         // Face color for three-dimensional display elements.
    00084     { "buttonface", wmgroup, 0, QPalette::Inactive, QColorGroup::Button },
    00085         // Dark shadow for three-dimensional display elements (for edges facing away from the light source).
    00086     { "buttonhighlight", wmgroup, 0, QPalette::Inactive, QColorGroup::Light },
    00087         // Shadow color for three-dimensional display elements.
    00088     { "buttonshadow", wmgroup, 0, QPalette::Inactive, QColorGroup::Shadow },
    00089         // Text on push buttons.
    00090     { "buttontext", wmgroup, "buttonForeground", QPalette::Inactive, QColorGroup::ButtonText },
    00091         // Dark shadow for three-dimensional display elements.
    00092     { "threeddarkshadow", wmgroup, 0, QPalette::Inactive, QColorGroup::Dark },
    00093         // Face color for three-dimensional display elements.
    00094     { "threedface", wmgroup, 0, QPalette::Inactive, QColorGroup::Button },
    00095         // Highlight color for three-dimensional display elements.
    00096     { "threedhighlight", wmgroup, 0, QPalette::Inactive, QColorGroup::Light },
    00097         // Light color for three-dimensional display elements (for edges facing the light source).
    00098     { "threedlightshadow", wmgroup, 0, QPalette::Inactive, QColorGroup::Midlight },
    00099         // Dark shadow for three-dimensional display elements.
    00100     { "threedshadow", wmgroup, 0, QPalette::Inactive, QColorGroup::Shadow },
    00101
    00102     // Inactive window border.
    00103     { "inactiveborder", wmgroup, "background", QPalette::Disabled, QColorGroup::Background },
    00104     // Inactive window caption.
    00105     { "inactivecaption", wmgroup, "inactiveBackground", QPalette::Disabled, QColorGroup::Background },
    00106     // Color of text in an inactive caption.
    00107     { "inactivecaptiontext", wmgroup, "inactiveForeground", QPalette::Disabled, QColorGroup::Text },
    00108     { "graytext", wmgroup, 0, QPalette::Disabled, QColorGroup::Text },
    00109
    00110         // Menu background
    00111     { "menu", generalgroup, "background", QPalette::Inactive, QColorGroup::Background },
    00112         // Text in menus
    00113     { "menutext", generalgroup, "foreground", QPalette::Inactive, QColorGroup::Background },
    00114
    00115         // Text of item(s) selected in a control.
    00116     { "highlight", generalgroup, "selectBackground", QPalette::Inactive, QColorGroup::Background },
    00117
    00118     // Text of item(s) selected in a control.
    00119     { "highlighttext", generalgroup, "selectForeground", QPalette::Inactive, QColorGroup::Background },
    00120
    00121         // Background color of multiple document interface.
    00122     { "appworkspace", generalgroup, "background", QPalette::Inactive, QColorGroup::Text },
    00123
    00124         // Scroll bar gray area.
    00125     { "scrollbar", generalgroup, "background", QPalette::Inactive, QColorGroup::Background },
    00126
    00127         // Window background.
    00128     { "window", generalgroup, "windowBackground", QPalette::Inactive, QColorGroup::Background },
    00129         // Window frame.
    00130     { "windowframe", generalgroup, "windowBackground", QPalette::Inactive, QColorGroup::Background },
    00131         // WindowText
    00132     { "windowtext", generalgroup, "windowForeground", QPalette::Inactive, QColorGroup::Text },
    00133     { "text", generalgroup, 0, QPalette::Inactive, QColorGroup::Text },
    00134     { 0, 0, 0, QPalette::NColorGroups, QColorGroup::NColorRoles }
    00135 };
    00136
    00137 HTMLColors::HTMLColors()
    00138 {
    00139     const colorMap *color = cmap;
    00140     while ( color->name ) {
    00141         map[color->name] = color->value;
    00142         ++color;
    00143     }
    00144     // ### react to style changes
    00145     // see http://www.richinstyle.com for details
    00146
    00147     /* Mapping system settings to CSS 2
    00148      * Tried hard to get an appropriate mapping - schlpbch
    00149      */
    00150
    00151     KConfig *globalConfig = KGlobal::config();
    00152     const QPalette &pal = kapp->palette();
    00153
    00154     const uiColors *uicol = uimap;
    00155     const char *lastConfigGroup = 0;
    00156     while( uicol->name ) {
    00157         if ( lastConfigGroup != uicol->configGroup ) {
    00158             lastConfigGroup = uicol->configGroup;
    00159             globalConfig->setGroup( lastConfigGroup );
    00160         }
    00161         QColor c = pal.color( uicol->group, uicol->role );
    00162         if ( uicol->configEntry )
    00163             c = globalConfig->readColorEntry( uicol->configEntry, &c );
    00164         map[uicol->name] = c;
    00165         ++uicol;
    00166     }
    00167
    00168 #ifndef QT_NO_TOOLTIP
    00169     // InfoBackground
    00170     map["infobackground"] = QToolTip::palette().inactive().background();
    00171     // InfoText
    00172     map["infotext"] = QToolTip::palette().inactive().foreground();
    00173 #endif
    00174
    00175     KConfig bckgrConfig("kdesktoprc", true, false); // No multi-screen support
    00176     bckgrConfig.setGroup("Desktop0");
    00177         // Desktop background.
    00178     map["background"] = bckgrConfig.readColorEntry("Color1", &pal.disabled().background());
    00179 }
    00180
    00181
    00182
    00183 static HTMLColors *htmlColors = 0L;
    00184
    00185 static KStaticDeleter<HTMLColors> hcsd;
    00186
    00187 QRgb khtml::parseColor(QString name, bool strictParsing)
    00188 {
    00189     if( !htmlColors )
    00190         htmlColors = hcsd.setObject( new HTMLColors );
    00191
    00192     int pos;
    00193     // remove white spaces for those broken websites out there :-(
    00194     while ( ( pos = name.find( ' ' ) ) != -1 )  name.remove( pos, 1 );
    00195
    00196     int len = name.length();
    00197
    00198     if (!len || (strictParsing && len < 3))
    00199         return invalidColor;
    00200
    00201     if(len == 11 && name.find("transparent", 0, false) == 0)
    00202         return transparentColor;
    00203
    00204     if(len == 10 && name == "-konq-text")
    00205         return defaultTextColor;
    00206
    00207     // also recognize "color=ffffff"
    00208     if (len == 6)
    00209     {
    00210         bool ok;
    00211         int val = name.toInt(&ok, 16);
    00212         if(ok)
    00213             return (0xff << 24) | val;
    00214
    00215         // recognize #12345 (duplicate the last character)
    00216         if(!strictParsing && name[0] == '#') {
    00217             bool ok;
    00218             int val = name.right(5).toInt(&ok, 16);
    00219             if(ok)
    00220                 return (0xff << 24) | (val * 16 + ( val&0xf ));
    00221         }
    00222         if ( !name[0].isLetter() )
    00223             return invalidColor;
    00224     }
    00225
    00226     // #fffffff as found on msdn.microsoft.com
    00227     if ( name[0] == '#' && len > 7)
    00228         name = name.left(7);
    00229
    00230     if ( len > 4 && name[0].lower() == 'r' && name[1].lower() == 'g' &&
    00231          name[2].lower() == 'b' && name[3] == '(' &&
    00232          name[len-1] == ')')
    00233     {
    00234         // CSS like rgb(r, g, b) style
    00235         DOMString rgb = name.mid(4, name.length()-5);
    00236         int count;
    00237         khtml::Length* l = rgb.implementation()->toLengthArray(count);
    00238         if (count != 3)
    00239             return transparentColor;
    00240
    00241         int c[3];
    00242         for (int i = 0; i < 3; ++i) {
    00243             c[i] = l[i].width(255);
    00244             if (c[i] < 0) c[i] = 0;
    00245             if (c[i] > 255) c[i] = 255;
    00246         }
    00247
    00248         QRgb col = qRgb(c[0], c[1], c[2]);
    00249         delete [] l;
    00250         return col;
    00251     }
    00252
    00253     QColor tc = htmlColors->map[name];
    00254     if ( !tc.isValid() )
    00255         tc = htmlColors->map[name.lower()];
    00256
    00257     if (tc.isValid())
    00258         return tc.rgb();
    00259
    00260     tc.setNamedColor(name);
    00261     if (tc.isValid()) return tc.rgb();
    00262
    00263     tc.setNamedColor(name.lower());
    00264     if (tc.isValid()) return tc.rgb();
    00265
    00266     if(!strictParsing) {
    00267         bool hasalpha = false;
    00268         for(unsigned int i = 0; i < name.length(); i++)
    00269             if(name[i].isLetterOrNumber()) {
    00270                 hasalpha = true;
    00271                 break;
    00272             }
    00273
    00274         if(!hasalpha)
    00275             return qRgb(0, 0, 0);
    00276     }
    00277
    00278     return invalidColor;
    00279 }
    00280
    00281 namespace khtml {
    00282   QPainter *printpainter = 0;
    00283 }
    00284
    00285 void khtml::setPrintPainter( QPainter *printer )
    00286 {
    00287     printpainter = printer;
    00288 }

This file is part of the documentation for kdelibs Version 3.1.5.
Documentation copyright © 1996-2002 the KDE developers.
Generated on Wed Jan 28 13:33:49 2004 by doxygen 1.3.4 written by Dimitri van Heesch, © 1997-2001