kpalette.cpp Source File (kdecore Library)

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# kpalette.cpp

    00001 /* This file is part of the KDE libraries
    00002     Copyright (C) 1999 Waldo Bastian (bastian@kde.org)
    00003
    00004     This library is free software; you can redistribute it and/or
    00005     modify it under the terms of the GNU Library General Public
    00006     License as published by the Free Software Foundation; either
    00007     version 2 of the License.
    00008
    00009     This library is distributed in the hope that it will be useful,
    00010     but WITHOUT ANY WARRANTY; without even the implied warranty of
    00011     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00012     Library General Public License for more details.
    00013
    00014     You should have received a copy of the GNU Library General Public License
    00015     along with this library; see the file COPYING.LIB.  If not, write to
    00016     the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    00017     Boston, MA 02111-1307, USA.
    00018 */
    00019 //-----------------------------------------------------------------------------
    00020 // KDE color palette
    00021
    00022 #include "kpalette.h"
    00023
    00024 #include <qfile.h>
    00025 #include <qtextstream.h>
    00026 #include <kstandarddirs.h>
    00027 #include <kglobal.h>
    00028 #include <ksavefile.h>
    00029 #include <kstringhandler.h>
    00030
    00031 template class QPtrList<KPalette::kolor>;
    00032
    00033 QStringList
    00034 KPalette::getPaletteList()
    00035 {
    00036   QStringList paletteList;
    00037   KGlobal::dirs()->findAllResources("config", "colors/*", false, true, paletteList);
    00038
    00039   int strip = strlen("colors/");
    00040   for(QStringList::Iterator it = paletteList.begin();
    00041       it != paletteList.end();
    00042       it++)
    00043   {
    00044       (*it) = (*it).mid(strip);
    00045   }
    00046
    00047   return paletteList;
    00048 }
    00049
    00050 KPalette::KPalette(const QString &name)
    00051  : mName(name)
    00052 {
    00053   mKolorList.setAutoDelete(true);
    00054   if (mName.isEmpty()) return;
    00055
    00056   QString filename = locate("config", "colors/"+mName);
    00057   if (filename.isEmpty()) return;
    00058
    00059   QFile paletteFile(filename);
    00060   if (!paletteFile.exists()) return;
    00061   if (!paletteFile.open(IO_ReadOnly)) return;
    00062
    00063   uint maxLength = 1024;
    00064   QString line;
    00065
    00066   // Read first line
    00067   // Expected "GIMP Palette"
    00068   if (paletteFile.readLine(line, maxLength) == -1) return;
    00069   if (line.find(" Palette") == -1) return;
    00070
    00071   char *buffer = new char[maxLength];
    00072
    00073   while( paletteFile.readLine(line, maxLength) != -1)
    00074   {
    00075      if (line[0] == '#')
    00076      {
    00077         // This is a comment line
    00078         line = line.mid(1); // Strip '#'
    00079         line = line.stripWhiteSpace(); // Strip remaining white space..
    00080         if (!line.isEmpty())
    00081         {
    00082            mDesc += line+"\n"; // Add comment to description
    00083         }
    00084      }
    00085      else
    00086      {
    00087         // This is a color line, hopefully
    00088         line = line.stripWhiteSpace();
    00089         if (line.isEmpty()) continue;
    00090         int red, green, blue;
    00091         int pos = 0;
    00092         buffer[0] = '\0'; // Make string empty
    00093         if (sscanf(line.ascii(), "%d %d %d%n", &red, &green, &blue, &pos) >= 3)
    00094         {
    00095            if (red > 255) red = 255;
    00096            if (red < 0) red = 0;
    00097            if (green > 255) green = 255;
    00098            if (green < 0) green = 0;
    00099            if (blue > 255) blue = 255;
    00100            if (blue < 0) blue = 0;
    00101            kolor *node = new kolor();
    00102            node->color.setRgb(red, green, blue);
    00103            node->name = line.mid(pos).stripWhiteSpace();
    00104            if (node->name.isNull()) node->name = "";
    00105            mKolorList.append( node );
    00106         }
    00107      }
    00108   }
    00109   delete [] buffer;
    00110 }
    00111
    00112 KPalette::KPalette(const KPalette &p)
    00113  : mName(p.mName), mDesc(p.mDesc), mEditable(p.mEditable)
    00114 {
    00115    mKolorList.setAutoDelete(true);
    00116    // Make a deep copy of the color list
    00117    // We can't iterate a const list :(
    00118    // DF: yes you can - use the proper iterator, not first/next
    00119    QPtrList<kolor> *nonConstList = (QPtrList<kolor> *) &p.mKolorList;
    00120    for(kolor *node = nonConstList->first(); node; node = nonConstList->next())
    00121    {
    00122        mKolorList.append(new kolor(*node));
    00123    }
    00124 }
    00125
    00126 KPalette::~KPalette()
    00127 {
    00128   // Need auto-save?
    00129 }
    00130
    00131 bool
    00132 KPalette::save()
    00133 {
    00134    QString filename = locateLocal("config", "colors/"+mName);
    00135    KSaveFile sf(filename);
    00136    if (sf.status() != 0) return false;
    00137
    00138    QTextStream *str = sf.textStream();
    00139
    00140    QString description = mDesc.stripWhiteSpace();
    00141    description = "#"+QStringList::split("\n", description, true).join("\n#");
    00142
    00143    (*str) << "KDE RGB Palette\n";
    00144    (*str) << description << "\n";
    00145    // We can't iterate a const list :(
    00146    // DF: yes you can - use the proper iterator, not first/next
    00147    QPtrList<kolor> *nonConstList = (QPtrList<kolor> *) (&mKolorList);
    00148    for(kolor *node = nonConstList->first(); node; node = nonConstList->next())
    00149    {
    00150        int r,g,b;
    00151        node->color.rgb(&r, &g, &b);
    00152        (*str) << r << " " << g << " " << b << " " << node->name << "\n";
    00153    }
    00154    return sf.close();
    00155 }
    00156
    00157
    00158 KPalette&
    00159 KPalette::operator=( const KPalette &p)
    00160 {
    00161   if (&p == this) return *this;
    00162   mKolorList.clear();
    00163   // Make a deep copy of the color list
    00164   // We can't iterate a const list :(
    00165    // DF: yes you can - use the proper iterator, not first/next
    00166   QPtrList<kolor> *nonConstList = (QPtrList<kolor> *) &p.mKolorList;
    00167   for(kolor *node = nonConstList->first(); node; node = nonConstList->next())
    00168   {
    00169      mKolorList.append(new kolor(*node));
    00170   }
    00171   mName = p.mName;
    00172   mDesc = p.mDesc;
    00173   mEditable = p.mEditable;
    00174   return *this;
    00175 }
    00176
    00177 QColor
    00178 KPalette::color(int index)
    00179 {
    00180   if ((index < 0) || (index >= nrColors()))
    00181         return QColor();
    00182
    00183   kolor *node = mKolorList.at(index);
    00184   if (!node)
    00185         return QColor();
    00186
    00187   return node->color;
    00188 }
    00189
    00190 int
    00191 KPalette::findColor(const QColor &color) const
    00192 {
    00193   int index;
    00194   QPtrListIterator<kolor> it( mKolorList );
    00195   for (index = 0; it.current(); ++it, ++index)
    00196   {
    00197      if (it.current()->color == color)
    00198          return index;
    00199   }
    00200   return -1;
    00201 }
    00202
    00203 QString
    00204 KPalette::colorName(int index)
    00205 {
    00206   if ((index < 0) || (index >= nrColors()))
    00207         return QString::null;
    00208
    00209   kolor *node = mKolorList.at(index);
    00210   if (!node)
    00211         return QString::null;
    00212
    00213   return node->name;
    00214 }
    00215
    00216 int
    00217 KPalette::addColor(const QColor &newColor, const QString &newColorName)
    00218 {
    00219   kolor *node = new kolor();
    00220   node->color = newColor;
    00221   node->name = newColorName;
    00222   mKolorList.append( node );
    00223   return nrColors()-1;
    00224 }
    00225
    00226 int
    00227 KPalette::changeColor(int index,
    00228                       const QColor &newColor,
    00229                       const QString &newColorName)
    00230 {
    00231   if ((index < 0) || (index >= nrColors()))
    00232         return -1;
    00233
    00234   kolor *node = mKolorList.at(index);
    00235   if (!node)
    00236         return -1;
    00237
    00238   node->color = newColor;
    00239   node->name = newColorName;
    00240   return index;
    00241 }

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 12:46:43 2004 by doxygen 1.3.4 written by Dimitri van Heesch, © 1997-2001