blob: b61d48f5046a23fbf463183bbb81cf4d01a3cf38 [file] [log] [blame]
/*
Copyright (C) 1999 Lars Knoll (knoll@kde.org)
Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
Copyright (C) 2011 Rik Cabanier (cabanier@adobe.com)
Copyright (C) 2011 Adobe Systems Incorporated. All rights reserved.
Copyright (C) 2012 Motorola Mobility, Inc. All rights reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "third_party/blink/renderer/platform/geometry/length_functions.h"
#include "third_party/blink/renderer/platform/geometry/float_point.h"
#include "third_party/blink/renderer/platform/geometry/float_size.h"
#include "third_party/blink/renderer/platform/geometry/layout_unit.h"
#include "third_party/blink/renderer/platform/geometry/length_point.h"
#include "third_party/blink/renderer/platform/geometry/length_size.h"
namespace blink {
int IntValueForLength(const Length& length, int maximum_value) {
return ValueForLength(length, LayoutUnit(maximum_value)).ToInt();
}
float FloatValueForLength(const Length& length, float maximum_value) {
switch (length.GetType()) {
case kFixed:
return length.GetFloatValue();
case kPercent:
return static_cast<float>(maximum_value * length.Percent() / 100.0f);
case kFillAvailable:
case kAuto:
return static_cast<float>(maximum_value);
case kCalculated:
return length.NonNanCalculatedValue(LayoutUnit(maximum_value));
case kMinContent:
case kMaxContent:
case kFitContent:
case kExtendToZoom:
case kDeviceWidth:
case kDeviceHeight:
case kMaxSizeNone:
NOTREACHED();
return 0;
}
NOTREACHED();
return 0;
}
LayoutUnit MinimumValueForLength(const Length& length,
LayoutUnit maximum_value) {
switch (length.GetType()) {
case kFixed:
return LayoutUnit(length.Value());
case kPercent:
// Don't remove the extra cast to float. It is needed for rounding on
// 32-bit Intel machines that use the FPU stack.
return LayoutUnit(
static_cast<float>(maximum_value * length.Percent() / 100.0f));
case kCalculated:
return LayoutUnit(length.NonNanCalculatedValue(maximum_value));
case kFillAvailable:
case kAuto:
return LayoutUnit();
case kMinContent:
case kMaxContent:
case kFitContent:
case kExtendToZoom:
case kDeviceWidth:
case kDeviceHeight:
case kMaxSizeNone:
NOTREACHED();
return LayoutUnit();
}
NOTREACHED();
return LayoutUnit();
}
LayoutUnit RoundedMinimumValueForLength(const Length& length,
LayoutUnit maximum_value) {
if (length.GetType() == kPercent)
return static_cast<LayoutUnit>(
round(maximum_value * length.Percent() / 100.0f));
return MinimumValueForLength(length, maximum_value);
}
LayoutUnit ValueForLength(const Length& length, LayoutUnit maximum_value) {
switch (length.GetType()) {
case kFixed:
case kPercent:
case kCalculated:
return MinimumValueForLength(length, maximum_value);
case kFillAvailable:
case kAuto:
return maximum_value;
case kMinContent:
case kMaxContent:
case kFitContent:
case kExtendToZoom:
case kDeviceWidth:
case kDeviceHeight:
case kMaxSizeNone:
NOTREACHED();
return LayoutUnit();
}
NOTREACHED();
return LayoutUnit();
}
FloatSize FloatSizeForLengthSize(const LengthSize& length_size,
const FloatSize& box_size) {
return FloatSize(
FloatValueForLength(length_size.Width(), box_size.Width()),
FloatValueForLength(length_size.Height(), box_size.Height()));
}
FloatPoint FloatPointForLengthPoint(const LengthPoint& length_point,
const FloatSize& box_size) {
return FloatPoint(FloatValueForLength(length_point.X(), box_size.Width()),
FloatValueForLength(length_point.Y(), box_size.Height()));
}
} // namespace blink