khtml/rendering/render_body.cpp

   1 /**
   2  * This file is part of the html renderer for KDE.
   3  *
   4  * Copyright (C) 2000-2003 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 #include "rendering/render_body.h"
  23 #include "rendering/render_canvas.h"
  24 #include "html/html_baseimpl.h"
  25 #include "xml/dom_docimpl.h"
  26 #include "khtmlview.h"
  27
  28 #include <kglobal.h>
  29 #include <kdebug.h>
  30
  31 #include <QScrollBar>
  32
  33 using namespace khtml;
  34 using namespace DOM;
  35
  36 RenderBody::RenderBody(HTMLBodyElementImpl* element)
  37     : RenderBlock(element)
  38 {
  39     scrollbarsStyled = false;
  40 }
  41
  42 RenderBody::~RenderBody()
  43 {
  44 }
  45
  46 void RenderBody::setStyle(RenderStyle* style)
  47 {
  48     RenderBlock::setStyle(style);
  49     document()->setTextColor( style->color() );
  50     scrollbarsStyled = false;
  51 }
  52
  53 void RenderBody::paintBoxDecorations(PaintInfo& paintInfo, int _tx, int _ty)
  54 {
  55     //kDebug( 6040 ) << renderName() << "::paintDecorations()";
  56     QColor bgColor;
  57     const BackgroundLayer *bgLayer = 0;
  58
  59     if( parent()->style()->hasBackground() ) {
  60         // the root element already has a non-transparent background of its own
  61         // so we must fork our own. (CSS2.1 - 14.2 §4)
  62         bgColor =  style()->backgroundColor();
  63         bgLayer = style()->backgroundLayers();
  64     }
  65
  66     int w = width();
  67     int h = height() + borderTopExtra() + borderBottomExtra();
  68     _ty -= borderTopExtra();
  69     QRect cr = QRect(_tx, _ty, w, h).intersected(paintInfo.r);
  70
  71     paintAllBackgrounds(paintInfo.p, bgColor, bgLayer, cr, _tx, _ty, w, h);
  72
  73     if(style()->hasBorder())
  74         paintBorder( paintInfo.p, _tx, _ty, w, h, style() );
  75
  76 }
  77
  78 void RenderBody::repaint(Priority p)
  79 {
  80     RenderObject *cb = containingBlock();
  81     if(cb)
  82         cb->repaint(p);
  83 }
  84
  85 void RenderBody::layout()
  86 {
  87     // in quirk mode, we'll need to have our margins determined
  88     // for percentage height calculations
  89     if (style()->htmlHacks())
  90         calcHeight();
  91     RenderBlock::layout();
  92
  93     if (!scrollbarsStyled)
  94     {
  95         RenderCanvas* canvas = this->canvas();
  96         if (canvas->view())
  97         {
  98             canvas->view()->horizontalScrollBar()->setPalette(style()->palette());
  99             canvas->view()->verticalScrollBar()->setPalette(style()->palette());
 100         }
 101         scrollbarsStyled=true;
 102     }
 103 }
 104
 105 int RenderBody::availableHeight() const
 106 {
 107     int h = RenderBlock::availableHeight();
 108
 109     if( style()->marginTop().isFixed() )
 110         h  -= style()->marginTop().value();
 111     if( style()->marginBottom().isFixed() )
 112         h -= style()->marginBottom().value();
 113
 114     return qMax(0, h);
 115 }