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_stipple.h"
8
9 #include "fxjs/xfa/cjx_stipple.h"
10 #include "third_party/base/ptr_util.h"
11 #include "xfa/fxfa/parser/cxfa_color.h"
12
13 namespace {
14
15 const CXFA_Node::PropertyData kPropertyData[] = {{XFA_Element::Color, 1, 0},
16 {XFA_Element::Extras, 1, 0},
17 {XFA_Element::Unknown, 0, 0}};
18 const CXFA_Node::AttributeData kAttributeData[] = {
19 {XFA_Attribute::Id, XFA_AttributeType::CData, nullptr},
20 {XFA_Attribute::Use, XFA_AttributeType::CData, nullptr},
21 {XFA_Attribute::Rate, XFA_AttributeType::Integer, (void*)50},
22 {XFA_Attribute::Usehref, XFA_AttributeType::CData, nullptr},
23 {XFA_Attribute::Unknown, XFA_AttributeType::Integer, nullptr}};
24
25 constexpr wchar_t kName[] = L"stipple";
26
27 } // namespace
28
CXFA_Stipple(CXFA_Document * doc,XFA_PacketType packet)29 CXFA_Stipple::CXFA_Stipple(CXFA_Document* doc, XFA_PacketType packet)
30 : CXFA_Node(doc,
31 packet,
32 (XFA_XDPPACKET_Template | XFA_XDPPACKET_Form),
33 XFA_ObjectType::Node,
34 XFA_Element::Stipple,
35 kPropertyData,
36 kAttributeData,
37 kName,
38 pdfium::MakeUnique<CJX_Stipple>(this)) {}
39
~CXFA_Stipple()40 CXFA_Stipple::~CXFA_Stipple() {}
41
GetColorIfExists()42 CXFA_Color* CXFA_Stipple::GetColorIfExists() {
43 return GetChild<CXFA_Color>(0, XFA_Element::Color, false);
44 }
45
GetRate()46 int32_t CXFA_Stipple::GetRate() {
47 return JSObject()
48 ->TryInteger(XFA_Attribute::Rate, true)
49 .value_or(GetDefaultRate());
50 }
51
Draw(CXFA_Graphics * pGS,CXFA_GEPath * fillPath,const CFX_RectF & rtFill,const CFX_Matrix & matrix)52 void CXFA_Stipple::Draw(CXFA_Graphics* pGS,
53 CXFA_GEPath* fillPath,
54 const CFX_RectF& rtFill,
55 const CFX_Matrix& matrix) {
56 int32_t iRate = GetRate();
57 if (iRate == 0)
58 iRate = 100;
59
60 CXFA_Color* pColor = GetColorIfExists();
61 FX_ARGB crColor = pColor ? pColor->GetValue() : CXFA_Color::kBlackColor;
62
63 int32_t a;
64 FX_COLORREF rgb;
65 std::tie(a, rgb) = ArgbToColorRef(crColor);
66 FX_ARGB cr = ArgbEncode(iRate * a / 100, rgb);
67
68 pGS->SaveGraphState();
69 pGS->SetFillColor(CXFA_GEColor(cr));
70 pGS->FillPath(fillPath, FXFILL_WINDING, &matrix);
71 pGS->RestoreGraphState();
72 }
73