| // 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_stroke.h" |
| |
| #include <utility> |
| |
| #include "fxjs/xfa/cjx_object.h" |
| #include "xfa/fgas/graphics/cfgas_gegraphics.h" |
| #include "xfa/fxfa/cxfa_ffwidget.h" |
| #include "xfa/fxfa/parser/cxfa_color.h" |
| #include "xfa/fxfa/parser/cxfa_document.h" |
| #include "xfa/fxfa/parser/cxfa_measurement.h" |
| #include "xfa/fxfa/parser/cxfa_node.h" |
| #include "xfa/fxfa/parser/xfa_utils.h" |
| |
| void XFA_StrokeTypeSetLineDash(CFGAS_GEGraphics* pGraphics, |
| XFA_AttributeValue iStrokeType, |
| XFA_AttributeValue iCapType) { |
| switch (iStrokeType) { |
| case XFA_AttributeValue::DashDot: { |
| float dashArray[] = {4, 1, 2, 1}; |
| if (iCapType != XFA_AttributeValue::Butt) { |
| dashArray[1] = 2; |
| dashArray[3] = 2; |
| } |
| pGraphics->SetLineDash(0, dashArray); |
| break; |
| } |
| case XFA_AttributeValue::DashDotDot: { |
| float dashArray[] = {4, 1, 2, 1, 2, 1}; |
| if (iCapType != XFA_AttributeValue::Butt) { |
| dashArray[1] = 2; |
| dashArray[3] = 2; |
| dashArray[5] = 2; |
| } |
| pGraphics->SetLineDash(0, dashArray); |
| break; |
| } |
| case XFA_AttributeValue::Dashed: { |
| float dashArray[] = {5, 1}; |
| if (iCapType != XFA_AttributeValue::Butt) |
| dashArray[1] = 2; |
| |
| pGraphics->SetLineDash(0, dashArray); |
| break; |
| } |
| case XFA_AttributeValue::Dotted: { |
| float dashArray[] = {2, 1}; |
| if (iCapType != XFA_AttributeValue::Butt) |
| dashArray[1] = 2; |
| |
| pGraphics->SetLineDash(0, dashArray); |
| break; |
| } |
| default: |
| pGraphics->SetSolidLineDash(); |
| break; |
| } |
| } |
| |
| CXFA_Stroke::CXFA_Stroke(CXFA_Document* pDoc, |
| XFA_PacketType ePacket, |
| uint32_t validPackets, |
| XFA_ObjectType oType, |
| XFA_Element eType, |
| pdfium::span<const PropertyData> properties, |
| pdfium::span<const AttributeData> attributes, |
| CJX_Object* js_node) |
| : CXFA_Node(pDoc, |
| ePacket, |
| validPackets, |
| oType, |
| eType, |
| properties, |
| attributes, |
| js_node) {} |
| |
| CXFA_Stroke::~CXFA_Stroke() = default; |
| |
| bool CXFA_Stroke::IsVisible() { |
| XFA_AttributeValue presence = JSObject() |
| ->TryEnum(XFA_Attribute::Presence, true) |
| .value_or(XFA_AttributeValue::Visible); |
| return presence == XFA_AttributeValue::Visible; |
| } |
| |
| XFA_AttributeValue CXFA_Stroke::GetCapType() { |
| return JSObject()->GetEnum(XFA_Attribute::Cap); |
| } |
| |
| XFA_AttributeValue CXFA_Stroke::GetStrokeType() { |
| return JSObject()->GetEnum(XFA_Attribute::Stroke); |
| } |
| |
| float CXFA_Stroke::GetThickness() const { |
| return GetMSThickness().ToUnit(XFA_Unit::Pt); |
| } |
| |
| CXFA_Measurement CXFA_Stroke::GetMSThickness() const { |
| return JSObject()->GetMeasure(XFA_Attribute::Thickness); |
| } |
| |
| void CXFA_Stroke::SetMSThickness(CXFA_Measurement msThinkness) { |
| JSObject()->SetMeasure(XFA_Attribute::Thickness, msThinkness, false); |
| } |
| |
| FX_ARGB CXFA_Stroke::GetColor() { |
| CXFA_Color* pNode = GetChild<CXFA_Color>(0, XFA_Element::Color, false); |
| if (!pNode) |
| return 0xFF000000; |
| |
| return StringToFXARGB( |
| pNode->JSObject()->GetCData(XFA_Attribute::Value).AsStringView()); |
| } |
| |
| void CXFA_Stroke::SetColor(FX_ARGB argb) { |
| CXFA_Color* pNode = |
| JSObject()->GetOrCreateProperty<CXFA_Color>(0, XFA_Element::Color); |
| if (!pNode) |
| return; |
| |
| int a; |
| int r; |
| int g; |
| int b; |
| std::tie(a, r, g, b) = ArgbDecode(argb); |
| pNode->JSObject()->SetCData(XFA_Attribute::Value, |
| WideString::Format(L"%d,%d,%d", r, g, b)); |
| } |
| |
| XFA_AttributeValue CXFA_Stroke::GetJoinType() { |
| return JSObject()->GetEnum(XFA_Attribute::Join); |
| } |
| |
| bool CXFA_Stroke::IsInverted() { |
| return JSObject()->GetBoolean(XFA_Attribute::Inverted); |
| } |
| |
| float CXFA_Stroke::GetRadius() const { |
| return JSObject() |
| ->TryMeasure(XFA_Attribute::Radius, true) |
| .value_or(CXFA_Measurement(0, XFA_Unit::In)) |
| .ToUnit(XFA_Unit::Pt); |
| } |
| |
| bool CXFA_Stroke::SameStyles(CXFA_Stroke* stroke, uint32_t dwFlags) { |
| if (this == stroke) |
| return true; |
| if (fabs(GetThickness() - stroke->GetThickness()) >= 0.01f) |
| return false; |
| if ((dwFlags & XFA_STROKE_SAMESTYLE_NoPresence) == 0 && |
| IsVisible() != stroke->IsVisible()) { |
| return false; |
| } |
| if (GetStrokeType() != stroke->GetStrokeType()) |
| return false; |
| if (GetColor() != stroke->GetColor()) |
| return false; |
| if ((dwFlags & XFA_STROKE_SAMESTYLE_Corner) != 0 && |
| fabs(GetRadius() - stroke->GetRadius()) >= 0.01f) { |
| return false; |
| } |
| return true; |
| } |
| |
| void CXFA_Stroke::Stroke(CFGAS_GEPath* pPath, |
| CFGAS_GEGraphics* pGS, |
| const CFX_Matrix& matrix) { |
| if (!IsVisible()) |
| return; |
| |
| float fThickness = GetThickness(); |
| if (fThickness < 0.001f) |
| return; |
| |
| pGS->SaveGraphState(); |
| if (IsCorner() && fThickness > 2 * GetRadius()) |
| fThickness = 2 * GetRadius(); |
| |
| pGS->SetLineWidth(fThickness); |
| pGS->EnableActOnDash(); |
| pGS->SetLineCap(CFX_GraphStateData::LineCapButt); |
| XFA_StrokeTypeSetLineDash(pGS, GetStrokeType(), XFA_AttributeValue::Butt); |
| pGS->SetStrokeColor(CFGAS_GEColor(GetColor())); |
| pGS->StrokePath(pPath, &matrix); |
| pGS->RestoreGraphState(); |
| } |