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// 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_radial.h"
#include "third_party/base/ptr_util.h"
#include "xfa/fxfa/parser/cxfa_color.h"
#include "xfa/fxgraphics/cxfa_geshading.h"
namespace {
const CXFA_Node::PropertyData kRadialPropertyData[] = {
{XFA_Element::Color, 1, 0},
{XFA_Element::Extras, 1, 0},
{XFA_Element::Unknown, 0, 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_AttributeEnum::ToEdge},
{XFA_Attribute::Usehref, XFA_AttributeType::CData, nullptr},
{XFA_Attribute::Unknown, XFA_AttributeType::Integer, nullptr}};
constexpr wchar_t kRadialName[] = L"radial";
} // 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,
kRadialName,
pdfium::MakeUnique<CJX_Radial>(this)) {}
CXFA_Radial::~CXFA_Radial() {}
bool CXFA_Radial::IsToEdge() {
return JSObject()
->TryEnum(XFA_Attribute::Type, true)
.value_or(XFA_AttributeEnum::ToEdge) == XFA_AttributeEnum::ToEdge;
}
CXFA_Color* CXFA_Radial::GetColorIfExists() {
return GetChild<CXFA_Color>(0, XFA_Element::Color, false);
}
void CXFA_Radial::Draw(CXFA_Graphics* pGS,
CXFA_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;
CXFA_GEShading shading(rtFill.Center(), rtFill.Center(), 0, endRadius, true,
true, crStart, crEnd);
pGS->SaveGraphState();
pGS->SetFillColor(CXFA_GEColor(&shading));
pGS->FillPath(fillPath, FXFILL_WINDING, &matrix);
pGS->RestoreGraphState();
}
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