| // Copyright 2017 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_radial.h" |
| |
| #include <utility> |
| |
| #include "fxjs/xfa/cjx_node.h" |
| #include "xfa/fgas/graphics/cfgas_geshading.h" |
| #include "xfa/fxfa/parser/cxfa_color.h" |
| #include "xfa/fxfa/parser/cxfa_document.h" |
| |
| namespace { |
| |
| const CXFA_Node::PropertyData kRadialPropertyData[] = { |
| {XFA_Element::Color, 1, 0}, |
| {XFA_Element::Extras, 1, 0}, |
| }; |
| |
| const CXFA_Node::AttributeData kRadialAttributeData[] = { |
| {XFA_Attribute::Id, XFA_AttributeType::CData, nullptr}, |
| {XFA_Attribute::Use, XFA_AttributeType::CData, nullptr}, |
| {XFA_Attribute::Type, XFA_AttributeType::Enum, |
| (void*)XFA_AttributeValue::ToEdge}, |
| {XFA_Attribute::Usehref, XFA_AttributeType::CData, nullptr}, |
| }; |
| |
| } // namespace |
| |
| CXFA_Radial::CXFA_Radial(CXFA_Document* doc, XFA_PacketType packet) |
| : CXFA_Node(doc, |
| packet, |
| (XFA_XDPPACKET_Template | XFA_XDPPACKET_Form), |
| XFA_ObjectType::Node, |
| XFA_Element::Radial, |
| kRadialPropertyData, |
| kRadialAttributeData, |
| cppgc::MakeGarbageCollected<CJX_Node>( |
| doc->GetHeap()->GetAllocationHandle(), |
| this)) {} |
| |
| CXFA_Radial::~CXFA_Radial() = default; |
| |
| bool CXFA_Radial::IsToEdge() { |
| auto value = JSObject()->TryEnum(XFA_Attribute::Type, true); |
| return !value.has_value() || value.value() == XFA_AttributeValue::ToEdge; |
| } |
| |
| CXFA_Color* CXFA_Radial::GetColorIfExists() { |
| return GetChild<CXFA_Color>(0, XFA_Element::Color, false); |
| } |
| |
| void CXFA_Radial::Draw(CFGAS_GEGraphics* pGS, |
| CFGAS_GEPath* fillPath, |
| FX_ARGB crStart, |
| const CFX_RectF& rtFill, |
| const CFX_Matrix& matrix) { |
| CXFA_Color* pColor = GetColorIfExists(); |
| FX_ARGB crEnd = pColor ? pColor->GetValue() : CXFA_Color::kBlackColor; |
| if (!IsToEdge()) |
| std::swap(crStart, crEnd); |
| |
| float endRadius = sqrt(rtFill.Width() * rtFill.Width() + |
| rtFill.Height() * rtFill.Height()) / |
| 2; |
| CFGAS_GEShading shading(rtFill.Center(), rtFill.Center(), 0, endRadius, true, |
| true, crStart, crEnd); |
| |
| pGS->SaveGraphState(); |
| pGS->SetFillColor(CFGAS_GEColor(&shading)); |
| pGS->FillPath(fillPath, CFX_FillRenderOptions::FillType::kWinding, &matrix); |
| pGS->RestoreGraphState(); |
| } |