1 // Copyright 2016 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_stroke.h"
8
9 #include <utility>
10
11 #include "fxjs/xfa/cjx_object.h"
12 #include "xfa/fxfa/cxfa_ffwidget.h"
13 #include "xfa/fxfa/parser/cxfa_color.h"
14 #include "xfa/fxfa/parser/cxfa_measurement.h"
15 #include "xfa/fxfa/parser/cxfa_node.h"
16 #include "xfa/fxfa/parser/xfa_utils.h"
17 #include "xfa/fxgraphics/cxfa_graphics.h"
18
XFA_StrokeTypeSetLineDash(CXFA_Graphics * pGraphics,XFA_AttributeEnum iStrokeType,XFA_AttributeEnum iCapType)19 void XFA_StrokeTypeSetLineDash(CXFA_Graphics* pGraphics,
20 XFA_AttributeEnum iStrokeType,
21 XFA_AttributeEnum iCapType) {
22 switch (iStrokeType) {
23 case XFA_AttributeEnum::DashDot: {
24 float dashArray[] = {4, 1, 2, 1};
25 if (iCapType != XFA_AttributeEnum::Butt) {
26 dashArray[1] = 2;
27 dashArray[3] = 2;
28 }
29 pGraphics->SetLineDash(0, dashArray, 4);
30 break;
31 }
32 case XFA_AttributeEnum::DashDotDot: {
33 float dashArray[] = {4, 1, 2, 1, 2, 1};
34 if (iCapType != XFA_AttributeEnum::Butt) {
35 dashArray[1] = 2;
36 dashArray[3] = 2;
37 dashArray[5] = 2;
38 }
39 pGraphics->SetLineDash(0, dashArray, 6);
40 break;
41 }
42 case XFA_AttributeEnum::Dashed: {
43 float dashArray[] = {5, 1};
44 if (iCapType != XFA_AttributeEnum::Butt)
45 dashArray[1] = 2;
46
47 pGraphics->SetLineDash(0, dashArray, 2);
48 break;
49 }
50 case XFA_AttributeEnum::Dotted: {
51 float dashArray[] = {2, 1};
52 if (iCapType != XFA_AttributeEnum::Butt)
53 dashArray[1] = 2;
54
55 pGraphics->SetLineDash(0, dashArray, 2);
56 break;
57 }
58 default:
59 pGraphics->SetSolidLineDash();
60 break;
61 }
62 }
63
CXFA_Stroke(CXFA_Document * pDoc,XFA_PacketType ePacket,uint32_t validPackets,XFA_ObjectType oType,XFA_Element eType,const PropertyData * properties,const AttributeData * attributes,const WideStringView & elementName,std::unique_ptr<CJX_Object> js_node)64 CXFA_Stroke::CXFA_Stroke(CXFA_Document* pDoc,
65 XFA_PacketType ePacket,
66 uint32_t validPackets,
67 XFA_ObjectType oType,
68 XFA_Element eType,
69 const PropertyData* properties,
70 const AttributeData* attributes,
71 const WideStringView& elementName,
72 std::unique_ptr<CJX_Object> js_node)
73 : CXFA_Node(pDoc,
74 ePacket,
75 validPackets,
76 oType,
77 eType,
78 properties,
79 attributes,
80 elementName,
81 std::move(js_node)) {}
82
83 CXFA_Stroke::~CXFA_Stroke() = default;
84
IsVisible()85 bool CXFA_Stroke::IsVisible() {
86 XFA_AttributeEnum presence = JSObject()
87 ->TryEnum(XFA_Attribute::Presence, true)
88 .value_or(XFA_AttributeEnum::Visible);
89 return presence == XFA_AttributeEnum::Visible;
90 }
91
GetCapType()92 XFA_AttributeEnum CXFA_Stroke::GetCapType() {
93 return JSObject()->GetEnum(XFA_Attribute::Cap);
94 }
95
GetStrokeType()96 XFA_AttributeEnum CXFA_Stroke::GetStrokeType() {
97 return JSObject()->GetEnum(XFA_Attribute::Stroke);
98 }
99
GetThickness() const100 float CXFA_Stroke::GetThickness() const {
101 return GetMSThickness().ToUnit(XFA_Unit::Pt);
102 }
103
GetMSThickness() const104 CXFA_Measurement CXFA_Stroke::GetMSThickness() const {
105 return JSObject()->GetMeasure(XFA_Attribute::Thickness);
106 }
107
SetMSThickness(CXFA_Measurement msThinkness)108 void CXFA_Stroke::SetMSThickness(CXFA_Measurement msThinkness) {
109 JSObject()->SetMeasure(XFA_Attribute::Thickness, msThinkness, false);
110 }
111
GetColor()112 FX_ARGB CXFA_Stroke::GetColor() {
113 CXFA_Color* pNode = GetChild<CXFA_Color>(0, XFA_Element::Color, false);
114 if (!pNode)
115 return 0xFF000000;
116
117 return StringToFXARGB(
118 pNode->JSObject()->GetCData(XFA_Attribute::Value).AsStringView());
119 }
120
SetColor(FX_ARGB argb)121 void CXFA_Stroke::SetColor(FX_ARGB argb) {
122 CXFA_Color* pNode =
123 JSObject()->GetOrCreateProperty<CXFA_Color>(0, XFA_Element::Color);
124 if (!pNode)
125 return;
126
127 int a;
128 int r;
129 int g;
130 int b;
131 std::tie(a, r, g, b) = ArgbDecode(argb);
132 pNode->JSObject()->SetCData(XFA_Attribute::Value,
133 WideString::Format(L"%d,%d,%d", r, g, b), false,
134 false);
135 }
136
GetJoinType()137 XFA_AttributeEnum CXFA_Stroke::GetJoinType() {
138 return JSObject()->GetEnum(XFA_Attribute::Join);
139 }
140
IsInverted()141 bool CXFA_Stroke::IsInverted() {
142 return JSObject()->GetBoolean(XFA_Attribute::Inverted);
143 }
144
GetRadius() const145 float CXFA_Stroke::GetRadius() const {
146 return JSObject()
147 ->TryMeasure(XFA_Attribute::Radius, true)
148 .value_or(CXFA_Measurement(0, XFA_Unit::In))
149 .ToUnit(XFA_Unit::Pt);
150 }
151
SameStyles(CXFA_Stroke * stroke,uint32_t dwFlags)152 bool CXFA_Stroke::SameStyles(CXFA_Stroke* stroke, uint32_t dwFlags) {
153 if (this == stroke)
154 return true;
155 if (fabs(GetThickness() - stroke->GetThickness()) >= 0.01f)
156 return false;
157 if ((dwFlags & XFA_STROKE_SAMESTYLE_NoPresence) == 0 &&
158 IsVisible() != stroke->IsVisible()) {
159 return false;
160 }
161 if (GetStrokeType() != stroke->GetStrokeType())
162 return false;
163 if (GetColor() != stroke->GetColor())
164 return false;
165 if ((dwFlags & XFA_STROKE_SAMESTYLE_Corner) != 0 &&
166 fabs(GetRadius() - stroke->GetRadius()) >= 0.01f) {
167 return false;
168 }
169 return true;
170 }
171
Stroke(CXFA_GEPath * pPath,CXFA_Graphics * pGS,const CFX_Matrix & matrix)172 void CXFA_Stroke::Stroke(CXFA_GEPath* pPath,
173 CXFA_Graphics* pGS,
174 const CFX_Matrix& matrix) {
175 if (!IsVisible())
176 return;
177
178 float fThickness = GetThickness();
179 if (fThickness < 0.001f)
180 return;
181
182 pGS->SaveGraphState();
183 if (IsCorner() && fThickness > 2 * GetRadius())
184 fThickness = 2 * GetRadius();
185
186 pGS->SetLineWidth(fThickness);
187 pGS->EnableActOnDash();
188 pGS->SetLineCap(CFX_GraphStateData::LineCapButt);
189 XFA_StrokeTypeSetLineDash(pGS, GetStrokeType(), XFA_AttributeEnum::Butt);
190 pGS->SetStrokeColor(CXFA_GEColor(GetColor()));
191 pGS->StrokePath(pPath, &matrix);
192 pGS->RestoreGraphState();
193 }
194