khtml/misc/helper.h

   1 /*
   2  * This file is part of the CSS implementation for KDE.
   3  *
   4  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Library General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Library General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Library General Public License
  17  * along with this library; see the file COPYING.LIB.  If not, write to
  18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  19  * Boston, MA 02110-1301, USA.
  20  *
  21  */
  22 #ifndef html_helper_h
  23 #define html_helper_h
  24
  25 #include <QtGui/QColor>
  26 class QPainter;
  27 #include <QtGui/QFontMetrics>
  28 #include <QtGui/QFont>
  29
  30
  31
  32 namespace khtml
  33 {
  34     class RenderObject;
  35      const QRgb transparentColor = 0x00000000;
  36      const QRgb invertedColor    = 0x00000002;
  37
  38     extern QPainter *printpainter;
  39     void setPrintPainter( QPainter *printer );
  40
  41     bool hasSufficientContrast(const QColor &c1, const QColor &c2);
  42     QColor retrieveBackgroundColor(const RenderObject *obj);
  43     QRgb qRgbaFromHsla(double h, double s, double l, double a);
  44     QColor colorForCSSValue( int css_value );
  45
  46     void findWordBoundary(QChar *chars, int len, int position, int *start, int *end);
  47
  48     //enumerator for findSelectionNode
  49     enum FindSelectionResult { SelectionPointBefore,
  50                                SelectionPointAfter,
  51                                SelectionPointInside,
  52                                // the next two are only used inside one line in RenderText
  53                                // to get BiDi contexts right.
  54                                SelectionPointBeforeInLine,
  55                                SelectionPointAfterInLine };
  56 }
  57
  58 #endif