src/3rdparty/webkit/WebCore/rendering/RenderDataGrid.cpp

   1 /*
   2  * Copyright (C) 2009 Apple Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #include "config.h"
  27 #include "RenderDataGrid.h"
  28
  29 #include "FocusController.h"
  30 #include "Frame.h"
  31 #include "GraphicsContext.h"
  32 #include "Page.h"
  33 #include "Scrollbar.h"
  34
  35 using std::min;
  36
  37 namespace WebCore {
  38
  39 static const int cDefaultWidth = 300;
  40
  41 RenderDataGrid::RenderDataGrid(Element* elt)
  42     : RenderBlock(elt)
  43 {
  44 }
  45
  46 RenderDataGrid::~RenderDataGrid()
  47 {
  48 }
  49
  50 void RenderDataGrid::calcPrefWidths()
  51 {
  52     m_minPrefWidth = 0;
  53     m_maxPrefWidth = 0;
  54
  55     if (style()->width().isFixed() && style()->width().value() > 0)
  56         m_minPrefWidth = m_maxPrefWidth = calcContentBoxWidth(style()->width().value());
  57     else
  58         m_maxPrefWidth = calcContentBoxWidth(cDefaultWidth);
  59
  60     if (style()->minWidth().isFixed() && style()->minWidth().value() > 0) {
  61         m_maxPrefWidth = max(m_maxPrefWidth, calcContentBoxWidth(style()->minWidth().value()));
  62         m_minPrefWidth = max(m_minPrefWidth, calcContentBoxWidth(style()->minWidth().value()));
  63     } else if (style()->width().isPercent() || (style()->width().isAuto() && style()->height().isPercent()))
  64         m_minPrefWidth = 0;
  65     else
  66         m_minPrefWidth = m_maxPrefWidth;
  67
  68     if (style()->maxWidth().isFixed() && style()->maxWidth().value() != undefinedLength) {
  69         m_maxPrefWidth = min(m_maxPrefWidth, calcContentBoxWidth(style()->maxWidth().value()));
  70         m_minPrefWidth = min(m_minPrefWidth, calcContentBoxWidth(style()->maxWidth().value()));
  71     }
  72
  73     int toAdd = paddingLeft() + paddingRight() + borderLeft() + borderRight();
  74     m_minPrefWidth += toAdd;
  75     m_maxPrefWidth += toAdd;
  76
  77     setPrefWidthsDirty(false);
  78 }
  79
  80 void RenderDataGrid::paintObject(PaintInfo& paintInfo, int tx, int ty)
  81 {
  82     if (style()->visibility() != VISIBLE)
  83         return;
  84
  85     // Paint our background and border.
  86     RenderBlock::paintObject(paintInfo, tx, ty);
  87
  88     if (paintInfo.phase != PaintPhaseForeground)
  89         return;
  90
  91     // Paint our column headers first.
  92     paintColumnHeaders(paintInfo, tx, ty);
  93 }
  94
  95 void RenderDataGrid::paintColumnHeaders(PaintInfo&, int, int)
  96 {
  97     gridElement()->columns();
  98
  99 }
 100
 101 void RenderDataGrid::rebuildColumns()
 102 {
 103 }
 104
 105 // Scrolling implementation functions
 106 void RenderDataGrid::valueChanged(Scrollbar*)
 107 {
 108     // FIXME: Implement.
 109 }
 110
 111 void RenderDataGrid::invalidateScrollbarRect(Scrollbar*, const IntRect&)
 112 {
 113     // FIXME: Implement.
 114 }
 115
 116 bool RenderDataGrid::isActive() const
 117 {
 118     Page* page = document()->frame()->page();
 119     return page && page->focusController()->isActive();
 120 }
 121
 122 }