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
28using namespace std;
29
30namespace WebCore {
31
32using namespace HTMLNames;
33
34RenderMeter::RenderMeter(HTMLElement* element)
35    : RenderBlock(element)
36{
37}
38
39RenderMeter::~RenderMeter()
40{
41}
42
43HTMLMeterElement* RenderMeter::meterElement() const
44{
45    ASSERT(node());
46
47    if (isHTMLMeterElement(node()))
48        return toHTMLMeterElement(node());
49
50    ASSERT(node()->shadowHost());
51    return toHTMLMeterElement(node()->shadowHost());
52}
53
54void RenderMeter::updateLogicalWidth()
55{
56    RenderBox::updateLogicalWidth();
57
58    IntSize frameSize = theme()->meterSizeForBounds(this, pixelSnappedIntRect(frameRect()));
59    setLogicalWidth(isHorizontalWritingMode() ? frameSize.width() : frameSize.height());
60}
61
62void RenderMeter::computeLogicalHeight(LayoutUnit logicalHeight, LayoutUnit logicalTop, LogicalExtentComputedValues& computedValues) const
63{
64    RenderBox::computeLogicalHeight(logicalHeight, logicalTop, computedValues);
65
66    LayoutRect frame = frameRect();
67    if (isHorizontalWritingMode())
68        frame.setHeight(computedValues.m_extent);
69    else
70        frame.setWidth(computedValues.m_extent);
71    IntSize frameSize = theme()->meterSizeForBounds(this, pixelSnappedIntRect(frame));
72    computedValues.m_extent = isHorizontalWritingMode() ? frameSize.height() : frameSize.width();
73}
74
75double RenderMeter::valueRatio() const
76{
77    return meterElement()->valueRatio();
78}
79
80void RenderMeter::updateFromElement()
81{
82    repaint();
83}
84
85} // namespace WebCore
86