Home | History | Annotate | Download | only in rendering 
      1 /*
      2  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
      3  *
      4  * This library is free software; you can redistribute it and/or
      5  * modify it under the terms of the GNU Library General Public
      6  * License as published by the Free Software Foundation; either
      7  * version 2 of the License, or (at your option) any later version.
      8  *
      9  * This library is distributed in the hope that it will be useful,
     10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     12  * Library General Public License for more details.
     13  *
     14  * You should have received a copy of the GNU Library General Public License
     15  * along with this library; see the file COPYING.LIB.  If not, write to
     16  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     17  * Boston, MA 02110-1301, USA.
     18  *
     19  */
     20 
     21 #include "config.h"
     22 
     23 #include "core/rendering/RenderMeter.h"
     24 
     25 #include "core/html/HTMLMeterElement.h"
     26 #include "core/rendering/RenderTheme.h"
     27 
     28 namespace blink {
     29 
     30 using namespace HTMLNames;
     31 
     32 RenderMeter::RenderMeter(HTMLElement* element)
     33     : RenderBlockFlow(element)
     34 {
     35 }
     36 
     37 RenderMeter::~RenderMeter()
     38 {
     39 }
     40 
     41 HTMLMeterElement* RenderMeter::meterElement() const
     42 {
     43     ASSERT(node());
     44 
     45     if (isHTMLMeterElement(*node()))
     46         return toHTMLMeterElement(node());
     47 
     48     ASSERT(node()->shadowHost());
     49     return toHTMLMeterElement(node()->shadowHost());
     50 }
     51 
     52 void RenderMeter::updateLogicalWidth()
     53 {
     54     RenderBox::updateLogicalWidth();
     55 
     56     IntSize frameSize = RenderTheme::theme().meterSizeForBounds(this, pixelSnappedIntRect(frameRect()));
     57     setLogicalWidth(isHorizontalWritingMode() ? frameSize.width() : frameSize.height());
     58 }
     59 
     60 void RenderMeter::computeLogicalHeight(LayoutUnit logicalHeight, LayoutUnit logicalTop, LogicalExtentComputedValues& computedValues) const
     61 {
     62     RenderBox::computeLogicalHeight(logicalHeight, logicalTop, computedValues);
     63 
     64     LayoutRect frame = frameRect();
     65     if (isHorizontalWritingMode())
     66         frame.setHeight(computedValues.m_extent);
     67     else
     68         frame.setWidth(computedValues.m_extent);
     69     IntSize frameSize = RenderTheme::theme().meterSizeForBounds(this, pixelSnappedIntRect(frame));
     70     computedValues.m_extent = isHorizontalWritingMode() ? frameSize.height() : frameSize.width();
     71 }
     72 
     73 double RenderMeter::valueRatio() const
     74 {
     75     return meterElement()->valueRatio();
     76 }
     77 
     78 void RenderMeter::updateFromElement()
     79 {
     80     setShouldDoFullPaintInvalidation(true);
     81 }
     82 
     83 } // namespace blink
     84