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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_linear.h"
#include "fxjs/xfa/cjx_linear.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 kPropertyData[] = {{XFA_Element::Color, 1, 0},
{XFA_Element::Extras, 1, 0},
{XFA_Element::Unknown, 0, 0}};
const CXFA_Node::AttributeData kAttributeData[] = {
{XFA_Attribute::Id, XFA_AttributeType::CData, nullptr},
{XFA_Attribute::Use, XFA_AttributeType::CData, nullptr},
{XFA_Attribute::Type, XFA_AttributeType::Enum,
(void*)XFA_AttributeEnum::ToRight},
{XFA_Attribute::Usehref, XFA_AttributeType::CData, nullptr},
{XFA_Attribute::Unknown, XFA_AttributeType::Integer, nullptr}};
constexpr wchar_t kName[] = L"linear";
} // namespace
CXFA_Linear::CXFA_Linear(CXFA_Document* doc, XFA_PacketType packet)
: CXFA_Node(doc,
packet,
(XFA_XDPPACKET_Template | XFA_XDPPACKET_Form),
XFA_ObjectType::Node,
XFA_Element::Linear,
kPropertyData,
kAttributeData,
kName,
pdfium::MakeUnique<CJX_Linear>(this)) {}
CXFA_Linear::~CXFA_Linear() {}
XFA_AttributeEnum CXFA_Linear::GetType() {
return JSObject()
->TryEnum(XFA_Attribute::Type, true)
.value_or(XFA_AttributeEnum::ToRight);
}
CXFA_Color* CXFA_Linear::GetColorIfExists() {
return GetChild<CXFA_Color>(0, XFA_Element::Color, false);
}
void CXFA_Linear::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;
CFX_PointF ptStart;
CFX_PointF ptEnd;
switch (GetType()) {
case XFA_AttributeEnum::ToRight:
ptStart = CFX_PointF(rtFill.left, rtFill.top);
ptEnd = CFX_PointF(rtFill.right(), rtFill.top);
break;
case XFA_AttributeEnum::ToBottom:
ptStart = CFX_PointF(rtFill.left, rtFill.top);
ptEnd = CFX_PointF(rtFill.left, rtFill.bottom());
break;
case XFA_AttributeEnum::ToLeft:
ptStart = CFX_PointF(rtFill.right(), rtFill.top);
ptEnd = CFX_PointF(rtFill.left, rtFill.top);
break;
case XFA_AttributeEnum::ToTop:
ptStart = CFX_PointF(rtFill.left, rtFill.bottom());
ptEnd = CFX_PointF(rtFill.left, rtFill.top);
break;
default:
break;
}
CXFA_GEShading shading(ptStart, ptEnd, false, false, crStart, crEnd);
pGS->SaveGraphState();
pGS->SetFillColor(CXFA_GEColor(&shading));
pGS->FillPath(fillPath, FXFILL_WINDING, &matrix);
pGS->RestoreGraphState();
}
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