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// Copyright 2017 The PDFium Authors
// 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 <math.h>
#include <utility>
#include "fxjs/xfa/cjx_node.h"
#include "xfa/fgas/graphics/cfgas_gegraphics.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, {}},
{XFA_Element::Extras, 1, {}},
};
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::kTemplate, XFA_XDPPACKET::kForm},
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,
const 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 end_radius = FXSYS_sqrt2(rtFill.Width(), rtFill.Height()) / 2;
CFGAS_GEShading shading(rtFill.Center(), rtFill.Center(), 0, end_radius, true,
true, crStart, crEnd);
CFGAS_GEGraphics::StateRestorer restorer(pGS);
pGS->SetFillColor(CFGAS_GEColor(&shading));
pGS->FillPath(fillPath, CFX_FillRenderOptions::FillType::kWinding, matrix);
}
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