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// Copyright 2016 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "xfa/fxfa/parser/cxfa_measurement.h"
#include "core/fxcrt/fx_ext.h"
CXFA_Measurement::CXFA_Measurement(const CFX_WideStringC& wsMeasure) {
Set(wsMeasure);
}
CXFA_Measurement::CXFA_Measurement() {
Set(-1, XFA_UNIT_Unknown);
}
CXFA_Measurement::CXFA_Measurement(FX_FLOAT fValue, XFA_UNIT eUnit) {
Set(fValue, eUnit);
}
void CXFA_Measurement::Set(const CFX_WideStringC& wsMeasure) {
if (wsMeasure.IsEmpty()) {
m_fValue = 0;
m_eUnit = XFA_UNIT_Unknown;
return;
}
int32_t iUsedLen = 0;
int32_t iOffset = (wsMeasure.GetAt(0) == L'=') ? 1 : 0;
FX_FLOAT fValue = FXSYS_wcstof(wsMeasure.c_str() + iOffset,
wsMeasure.GetLength() - iOffset, &iUsedLen);
XFA_UNIT eUnit = GetUnit(wsMeasure.Mid(iOffset + iUsedLen));
Set(fValue, eUnit);
}
bool CXFA_Measurement::ToString(CFX_WideString& wsMeasure) const {
switch (GetUnit()) {
case XFA_UNIT_Mm:
wsMeasure.Format(L"%.8gmm", GetValue());
return true;
case XFA_UNIT_Pt:
wsMeasure.Format(L"%.8gpt", GetValue());
return true;
case XFA_UNIT_In:
wsMeasure.Format(L"%.8gin", GetValue());
return true;
case XFA_UNIT_Cm:
wsMeasure.Format(L"%.8gcm", GetValue());
return true;
case XFA_UNIT_Mp:
wsMeasure.Format(L"%.8gmp", GetValue());
return true;
case XFA_UNIT_Pc:
wsMeasure.Format(L"%.8gpc", GetValue());
return true;
case XFA_UNIT_Em:
wsMeasure.Format(L"%.8gem", GetValue());
return true;
case XFA_UNIT_Percent:
wsMeasure.Format(L"%.8g%%", GetValue());
return true;
default:
wsMeasure.Format(L"%.8g", GetValue());
return false;
}
}
bool CXFA_Measurement::ToUnit(XFA_UNIT eUnit, FX_FLOAT& fValue) const {
fValue = GetValue();
XFA_UNIT eFrom = GetUnit();
if (eFrom == eUnit)
return true;
switch (eFrom) {
case XFA_UNIT_Pt:
break;
case XFA_UNIT_Mm:
fValue *= 72 / 2.54f / 10;
break;
case XFA_UNIT_In:
fValue *= 72;
break;
case XFA_UNIT_Cm:
fValue *= 72 / 2.54f;
break;
case XFA_UNIT_Mp:
fValue *= 0.001f;
break;
case XFA_UNIT_Pc:
fValue *= 12.0f;
break;
default:
fValue = 0;
return false;
}
switch (eUnit) {
case XFA_UNIT_Pt:
return true;
case XFA_UNIT_Mm:
fValue /= 72 / 2.54f / 10;
return true;
case XFA_UNIT_In:
fValue /= 72;
return true;
case XFA_UNIT_Cm:
fValue /= 72 / 2.54f;
return true;
case XFA_UNIT_Mp:
fValue /= 0.001f;
return true;
case XFA_UNIT_Pc:
fValue /= 12.0f;
return true;
default:
fValue = 0;
return false;
}
}
XFA_UNIT CXFA_Measurement::GetUnit(const CFX_WideStringC& wsUnit) {
if (wsUnit == FX_WSTRC(L"mm"))
return XFA_UNIT_Mm;
if (wsUnit == FX_WSTRC(L"pt"))
return XFA_UNIT_Pt;
if (wsUnit == FX_WSTRC(L"in"))
return XFA_UNIT_In;
if (wsUnit == FX_WSTRC(L"cm"))
return XFA_UNIT_Cm;
if (wsUnit == FX_WSTRC(L"pc"))
return XFA_UNIT_Pc;
if (wsUnit == FX_WSTRC(L"mp"))
return XFA_UNIT_Mp;
if (wsUnit == FX_WSTRC(L"em"))
return XFA_UNIT_Em;
if (wsUnit == FX_WSTRC(L"%"))
return XFA_UNIT_Percent;
return XFA_UNIT_Unknown;
}
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