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// Copyright 2016 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_stroke.h"
#include <math.h>
#include <utility>
#include "fxjs/xfa/cjx_object.h"
#include "xfa/fgas/graphics/cfgas_gecolor.h"
#include "xfa/fgas/graphics/cfgas_gegraphics.h"
#include "xfa/fxfa/cxfa_ffwidget.h"
#include "xfa/fxfa/parser/cxfa_color.h"
#include "xfa/fxfa/parser/cxfa_document.h"
#include "xfa/fxfa/parser/cxfa_measurement.h"
#include "xfa/fxfa/parser/cxfa_node.h"
#include "xfa/fxfa/parser/xfa_utils.h"
void XFA_StrokeTypeSetLineDash(CFGAS_GEGraphics* pGraphics,
XFA_AttributeValue iStrokeType,
XFA_AttributeValue iCapType) {
switch (iStrokeType) {
case XFA_AttributeValue::DashDot: {
float dashArray[] = {4, 1, 2, 1};
if (iCapType != XFA_AttributeValue::Butt) {
dashArray[1] = 2;
dashArray[3] = 2;
}
pGraphics->SetLineDash(0, dashArray);
break;
}
case XFA_AttributeValue::DashDotDot: {
float dashArray[] = {4, 1, 2, 1, 2, 1};
if (iCapType != XFA_AttributeValue::Butt) {
dashArray[1] = 2;
dashArray[3] = 2;
dashArray[5] = 2;
}
pGraphics->SetLineDash(0, dashArray);
break;
}
case XFA_AttributeValue::Dashed: {
float dashArray[] = {5, 1};
if (iCapType != XFA_AttributeValue::Butt)
dashArray[1] = 2;
pGraphics->SetLineDash(0, dashArray);
break;
}
case XFA_AttributeValue::Dotted: {
float dashArray[] = {2, 1};
if (iCapType != XFA_AttributeValue::Butt)
dashArray[1] = 2;
pGraphics->SetLineDash(0, dashArray);
break;
}
default:
pGraphics->SetSolidLineDash();
break;
}
}
CXFA_Stroke::CXFA_Stroke(CXFA_Document* pDoc,
XFA_PacketType ePacket,
Mask<XFA_XDPPACKET> validPackets,
XFA_ObjectType oType,
XFA_Element eType,
pdfium::span<const PropertyData> properties,
pdfium::span<const AttributeData> attributes,
CJX_Object* js_node)
: CXFA_Node(pDoc,
ePacket,
validPackets,
oType,
eType,
properties,
attributes,
js_node) {}
CXFA_Stroke::~CXFA_Stroke() = default;
bool CXFA_Stroke::IsVisible() {
XFA_AttributeValue presence = JSObject()
->TryEnum(XFA_Attribute::Presence, true)
.value_or(XFA_AttributeValue::Visible);
return presence == XFA_AttributeValue::Visible;
}
XFA_AttributeValue CXFA_Stroke::GetCapType() {
return JSObject()->GetEnum(XFA_Attribute::Cap);
}
XFA_AttributeValue CXFA_Stroke::GetStrokeType() {
return JSObject()->GetEnum(XFA_Attribute::Stroke);
}
float CXFA_Stroke::GetThickness() const {
return GetMSThickness().ToUnit(XFA_Unit::Pt);
}
CXFA_Measurement CXFA_Stroke::GetMSThickness() const {
return JSObject()->GetMeasure(XFA_Attribute::Thickness);
}
void CXFA_Stroke::SetMSThickness(CXFA_Measurement msThinkness) {
JSObject()->SetMeasure(XFA_Attribute::Thickness, msThinkness, false);
}
FX_ARGB CXFA_Stroke::GetColor() const {
const auto* pNode = GetChild<CXFA_Color>(0, XFA_Element::Color, false);
if (!pNode)
return 0xFF000000;
return CXFA_Color::StringToFXARGB(
pNode->JSObject()->GetCData(XFA_Attribute::Value).AsStringView());
}
void CXFA_Stroke::SetColor(FX_ARGB argb) {
CXFA_Color* pNode =
JSObject()->GetOrCreateProperty<CXFA_Color>(0, XFA_Element::Color);
if (!pNode)
return;
pNode->JSObject()->SetCData(
XFA_Attribute::Value,
WideString::FromASCII(CFGAS_GEColor::ColorToString(argb).AsStringView()));
}
XFA_AttributeValue CXFA_Stroke::GetJoinType() {
return JSObject()->GetEnum(XFA_Attribute::Join);
}
bool CXFA_Stroke::IsInverted() {
return JSObject()->GetBoolean(XFA_Attribute::Inverted);
}
float CXFA_Stroke::GetRadius() const {
return JSObject()
->TryMeasure(XFA_Attribute::Radius, true)
.value_or(CXFA_Measurement(0, XFA_Unit::In))
.ToUnit(XFA_Unit::Pt);
}
bool CXFA_Stroke::SameStyles(CXFA_Stroke* stroke,
Mask<SameStyleOption> dwFlags) {
if (this == stroke)
return true;
if (fabs(GetThickness() - stroke->GetThickness()) >= 0.01f)
return false;
if (!(dwFlags & SameStyleOption::kNoPresence) &&
IsVisible() != stroke->IsVisible()) {
return false;
}
if (GetStrokeType() != stroke->GetStrokeType())
return false;
if (GetColor() != stroke->GetColor())
return false;
if ((dwFlags & CXFA_Stroke::SameStyleOption::kCorner) &&
fabs(GetRadius() - stroke->GetRadius()) >= 0.01f) {
return false;
}
return true;
}
void CXFA_Stroke::Stroke(CFGAS_GEGraphics* pGS,
const CFGAS_GEPath& pPath,
const CFX_Matrix& matrix) {
if (!IsVisible())
return;
float fThickness = GetThickness();
if (fThickness < 0.001f)
return;
CFGAS_GEGraphics::StateRestorer restorer(pGS);
if (IsCorner() && fThickness > 2 * GetRadius())
fThickness = 2 * GetRadius();
pGS->SetLineWidth(fThickness);
pGS->EnableActOnDash();
pGS->SetLineCap(CFX_GraphStateData::LineCap::kButt);
XFA_StrokeTypeSetLineDash(pGS, GetStrokeType(), XFA_AttributeValue::Butt);
pGS->SetStrokeColor(CFGAS_GEColor(GetColor()));
pGS->StrokePath(pPath, matrix);
}