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76 lines
2.5 KiB
76 lines
2.5 KiB
// Copyright 2017 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "xfa/fxfa/parser/cxfa_radial.h"
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#include <utility>
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#include "core/fxge/render_defines.h"
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#include "fxjs/xfa/cjx_node.h"
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#include "third_party/base/ptr_util.h"
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#include "xfa/fxfa/parser/cxfa_color.h"
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#include "xfa/fxgraphics/cxfa_geshading.h"
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namespace {
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const CXFA_Node::PropertyData kRadialPropertyData[] = {
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{XFA_Element::Color, 1, 0},
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{XFA_Element::Extras, 1, 0},
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};
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const CXFA_Node::AttributeData kRadialAttributeData[] = {
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{XFA_Attribute::Id, XFA_AttributeType::CData, nullptr},
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{XFA_Attribute::Use, XFA_AttributeType::CData, nullptr},
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{XFA_Attribute::Type, XFA_AttributeType::Enum,
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(void*)XFA_AttributeValue::ToEdge},
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{XFA_Attribute::Usehref, XFA_AttributeType::CData, nullptr},
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};
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} // namespace
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CXFA_Radial::CXFA_Radial(CXFA_Document* doc, XFA_PacketType packet)
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: CXFA_Node(doc,
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packet,
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(XFA_XDPPACKET_Template | XFA_XDPPACKET_Form),
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XFA_ObjectType::Node,
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XFA_Element::Radial,
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kRadialPropertyData,
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kRadialAttributeData,
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pdfium::MakeUnique<CJX_Node>(this)) {}
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CXFA_Radial::~CXFA_Radial() = default;
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bool CXFA_Radial::IsToEdge() {
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auto value = JSObject()->TryEnum(XFA_Attribute::Type, true);
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return !value.has_value() || value.value() == XFA_AttributeValue::ToEdge;
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}
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CXFA_Color* CXFA_Radial::GetColorIfExists() {
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return GetChild<CXFA_Color>(0, XFA_Element::Color, false);
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}
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void CXFA_Radial::Draw(CXFA_Graphics* pGS,
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CXFA_GEPath* fillPath,
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FX_ARGB crStart,
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const CFX_RectF& rtFill,
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const CFX_Matrix& matrix) {
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CXFA_Color* pColor = GetColorIfExists();
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FX_ARGB crEnd = pColor ? pColor->GetValue() : CXFA_Color::kBlackColor;
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if (!IsToEdge())
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std::swap(crStart, crEnd);
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float endRadius = sqrt(rtFill.Width() * rtFill.Width() +
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rtFill.Height() * rtFill.Height()) /
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2;
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CXFA_GEShading shading(rtFill.Center(), rtFill.Center(), 0, endRadius, true,
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true, crStart, crEnd);
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pGS->SaveGraphState();
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pGS->SetFillColor(CXFA_GEColor(&shading));
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pGS->FillPath(fillPath, FXFILL_WINDING, &matrix);
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pGS->RestoreGraphState();
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}
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