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      1 // Copyright 2017 PDFium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
      6 
      7 #include "xfa/fxfa/parser/cxfa_font.h"
      8 
      9 #include "fxjs/xfa/cjx_font.h"
     10 #include "third_party/base/ptr_util.h"
     11 #include "xfa/fxfa/parser/cxfa_fill.h"
     12 #include "xfa/fxfa/parser/cxfa_measurement.h"
     13 
     14 namespace {
     15 
     16 const CXFA_Node::PropertyData kPropertyData[] = {{XFA_Element::Fill, 1, 0},
     17                                                  {XFA_Element::Extras, 1, 0},
     18                                                  {XFA_Element::Unknown, 0, 0}};
     19 const CXFA_Node::AttributeData kAttributeData[] = {
     20     {XFA_Attribute::Id, XFA_AttributeType::CData, nullptr},
     21     {XFA_Attribute::LineThrough, XFA_AttributeType::Integer, (void*)0},
     22     {XFA_Attribute::Typeface, XFA_AttributeType::CData, (void*)L"Courier"},
     23     {XFA_Attribute::FontHorizontalScale, XFA_AttributeType::CData,
     24      (void*)L"100%"},
     25     {XFA_Attribute::Use, XFA_AttributeType::CData, nullptr},
     26     {XFA_Attribute::KerningMode, XFA_AttributeType::Enum,
     27      (void*)XFA_AttributeEnum::None},
     28     {XFA_Attribute::Underline, XFA_AttributeType::Integer, (void*)0},
     29     {XFA_Attribute::BaselineShift, XFA_AttributeType::Measure, (void*)L"0in"},
     30     {XFA_Attribute::OverlinePeriod, XFA_AttributeType::Enum,
     31      (void*)XFA_AttributeEnum::All},
     32     {XFA_Attribute::LetterSpacing, XFA_AttributeType::CData, nullptr},
     33     {XFA_Attribute::LineThroughPeriod, XFA_AttributeType::Enum,
     34      (void*)XFA_AttributeEnum::All},
     35     {XFA_Attribute::FontVerticalScale, XFA_AttributeType::CData,
     36      (void*)L"100%"},
     37     {XFA_Attribute::PsName, XFA_AttributeType::CData, nullptr},
     38     {XFA_Attribute::Size, XFA_AttributeType::Measure, (void*)L"10pt"},
     39     {XFA_Attribute::Posture, XFA_AttributeType::Enum,
     40      (void*)XFA_AttributeEnum::Normal},
     41     {XFA_Attribute::Usehref, XFA_AttributeType::CData, nullptr},
     42     {XFA_Attribute::Weight, XFA_AttributeType::Enum,
     43      (void*)XFA_AttributeEnum::Normal},
     44     {XFA_Attribute::UnderlinePeriod, XFA_AttributeType::Enum,
     45      (void*)XFA_AttributeEnum::All},
     46     {XFA_Attribute::Overline, XFA_AttributeType::Integer, (void*)0},
     47     {XFA_Attribute::GenericFamily, XFA_AttributeType::Enum,
     48      (void*)XFA_AttributeEnum::Serif},
     49     {XFA_Attribute::Unknown, XFA_AttributeType::Integer, nullptr}};
     50 
     51 constexpr wchar_t kName[] = L"font";
     52 
     53 }  // namespace
     54 
     55 CXFA_Font::CXFA_Font(CXFA_Document* doc, XFA_PacketType packet)
     56     : CXFA_Node(
     57           doc,
     58           packet,
     59           (XFA_XDPPACKET_Template | XFA_XDPPACKET_Config | XFA_XDPPACKET_Form),
     60           XFA_ObjectType::Node,
     61           XFA_Element::Font,
     62           kPropertyData,
     63           kAttributeData,
     64           kName,
     65           pdfium::MakeUnique<CJX_Font>(this)) {}
     66 
     67 CXFA_Font::~CXFA_Font() {}
     68 
     69 float CXFA_Font::GetBaselineShift() const {
     70   return JSObject()
     71       ->GetMeasure(XFA_Attribute::BaselineShift)
     72       .ToUnit(XFA_Unit::Pt);
     73 }
     74 
     75 float CXFA_Font::GetHorizontalScale() {
     76   WideString wsValue = JSObject()->GetCData(XFA_Attribute::FontHorizontalScale);
     77   int32_t iScale = FXSYS_wtoi(wsValue.c_str());
     78   return iScale > 0 ? (float)iScale : 100.0f;
     79 }
     80 
     81 float CXFA_Font::GetVerticalScale() {
     82   WideString wsValue = JSObject()->GetCData(XFA_Attribute::FontVerticalScale);
     83   int32_t iScale = FXSYS_wtoi(wsValue.c_str());
     84   return iScale > 0 ? (float)iScale : 100.0f;
     85 }
     86 
     87 float CXFA_Font::GetLetterSpacing() {
     88   WideString wsValue = JSObject()->GetCData(XFA_Attribute::LetterSpacing);
     89   CXFA_Measurement ms(wsValue.AsStringView());
     90   if (ms.GetUnit() == XFA_Unit::Em)
     91     return ms.GetValue() * GetFontSize();
     92   return ms.ToUnit(XFA_Unit::Pt);
     93 }
     94 
     95 int32_t CXFA_Font::GetLineThrough() {
     96   return JSObject()->GetInteger(XFA_Attribute::LineThrough);
     97 }
     98 
     99 int32_t CXFA_Font::GetUnderline() {
    100   return JSObject()->GetInteger(XFA_Attribute::Underline);
    101 }
    102 
    103 XFA_AttributeEnum CXFA_Font::GetUnderlinePeriod() {
    104   return JSObject()
    105       ->TryEnum(XFA_Attribute::UnderlinePeriod, true)
    106       .value_or(XFA_AttributeEnum::All);
    107 }
    108 
    109 float CXFA_Font::GetFontSize() const {
    110   return JSObject()->GetMeasure(XFA_Attribute::Size).ToUnit(XFA_Unit::Pt);
    111 }
    112 
    113 WideString CXFA_Font::GetTypeface() {
    114   return JSObject()->GetCData(XFA_Attribute::Typeface);
    115 }
    116 
    117 bool CXFA_Font::IsBold() {
    118   return JSObject()->GetEnum(XFA_Attribute::Weight) == XFA_AttributeEnum::Bold;
    119 }
    120 
    121 bool CXFA_Font::IsItalic() {
    122   return JSObject()->GetEnum(XFA_Attribute::Posture) ==
    123          XFA_AttributeEnum::Italic;
    124 }
    125 
    126 void CXFA_Font::SetColor(FX_ARGB color) {
    127   CXFA_Fill* node =
    128       JSObject()->GetOrCreateProperty<CXFA_Fill>(0, XFA_Element::Fill);
    129   if (!node)
    130     return;
    131 
    132   node->SetColor(color);
    133 }
    134 
    135 FX_ARGB CXFA_Font::GetColor() {
    136   CXFA_Fill* fill = GetChild<CXFA_Fill>(0, XFA_Element::Fill, false);
    137   return fill ? fill->GetColor(true) : 0xFF000000;
    138 }
    139