xref: /aosp_15_r20/external/pdfium/xfa/fxfa/parser/cxfa_pattern.cpp (revision 3ac0a46f773bac49fa9476ec2b1cf3f8da5ec3a4)
1 // Copyright 2017 The PDFium Authors
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_pattern.h"
8 
9 #include "fxjs/xfa/cjx_node.h"
10 #include "xfa/fgas/graphics/cfgas_gegraphics.h"
11 #include "xfa/fgas/graphics/cfgas_gepattern.h"
12 #include "xfa/fxfa/parser/cxfa_color.h"
13 #include "xfa/fxfa/parser/cxfa_document.h"
14 
15 namespace {
16 
17 const CXFA_Node::PropertyData kPatternPropertyData[] = {
18     {XFA_Element::Color, 1, {}},
19     {XFA_Element::Extras, 1, {}},
20 };
21 
22 const CXFA_Node::AttributeData kPatternAttributeData[] = {
23     {XFA_Attribute::Id, XFA_AttributeType::CData, nullptr},
24     {XFA_Attribute::Use, XFA_AttributeType::CData, nullptr},
25     {XFA_Attribute::Type, XFA_AttributeType::Enum,
26      (void*)XFA_AttributeValue::CrossHatch},
27     {XFA_Attribute::Usehref, XFA_AttributeType::CData, nullptr},
28 };
29 
30 }  // namespace
31 
CXFA_Pattern(CXFA_Document * doc,XFA_PacketType packet)32 CXFA_Pattern::CXFA_Pattern(CXFA_Document* doc, XFA_PacketType packet)
33     : CXFA_Node(doc,
34                 packet,
35                 {XFA_XDPPACKET::kTemplate, XFA_XDPPACKET::kForm},
36                 XFA_ObjectType::Node,
37                 XFA_Element::Pattern,
38                 kPatternPropertyData,
39                 kPatternAttributeData,
40                 cppgc::MakeGarbageCollected<CJX_Node>(
41                     doc->GetHeap()->GetAllocationHandle(),
42                     this)) {}
43 
44 CXFA_Pattern::~CXFA_Pattern() = default;
45 
GetColorIfExists()46 CXFA_Color* CXFA_Pattern::GetColorIfExists() {
47   return GetChild<CXFA_Color>(0, XFA_Element::Color, false);
48 }
49 
GetType()50 XFA_AttributeValue CXFA_Pattern::GetType() {
51   return JSObject()->GetEnum(XFA_Attribute::Type);
52 }
53 
Draw(CFGAS_GEGraphics * pGS,const CFGAS_GEPath & fillPath,FX_ARGB crStart,const CFX_RectF & rtFill,const CFX_Matrix & matrix)54 void CXFA_Pattern::Draw(CFGAS_GEGraphics* pGS,
55                         const CFGAS_GEPath& fillPath,
56                         FX_ARGB crStart,
57                         const CFX_RectF& rtFill,
58                         const CFX_Matrix& matrix) {
59   CXFA_Color* pColor = GetColorIfExists();
60   FX_ARGB crEnd = pColor ? pColor->GetValue() : CXFA_Color::kBlackColor;
61   CFGAS_GEPattern::HatchStyle iHatch = CFGAS_GEPattern::HatchStyle::Cross;
62   switch (GetType()) {
63     case XFA_AttributeValue::CrossDiagonal:
64       iHatch = CFGAS_GEPattern::HatchStyle::DiagonalCross;
65       break;
66     case XFA_AttributeValue::DiagonalLeft:
67       iHatch = CFGAS_GEPattern::HatchStyle::ForwardDiagonal;
68       break;
69     case XFA_AttributeValue::DiagonalRight:
70       iHatch = CFGAS_GEPattern::HatchStyle::BackwardDiagonal;
71       break;
72     case XFA_AttributeValue::Horizontal:
73       iHatch = CFGAS_GEPattern::HatchStyle::Horizontal;
74       break;
75     case XFA_AttributeValue::Vertical:
76       iHatch = CFGAS_GEPattern::HatchStyle::Vertical;
77       break;
78     default:
79       break;
80   }
81 
82   CFGAS_GEPattern pattern(iHatch, crEnd, crStart);
83   CFGAS_GEGraphics::StateRestorer restorer(pGS);
84   pGS->SetFillColor(CFGAS_GEColor(&pattern, 0x0));
85   pGS->FillPath(fillPath, CFX_FillRenderOptions::FillType::kWinding, matrix);
86 }
87