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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/cxfa_ffline.h"
#include "xfa/fxgraphics/cxfa_gecolor.h"
#include "xfa/fxgraphics/cxfa_gepath.h"
#include "xfa/fxgraphics/cxfa_graphics.h"
namespace {
CFX_GraphStateData::LineCap LineCapToFXGE(XFA_ATTRIBUTEENUM iLineCap) {
switch (iLineCap) {
case XFA_ATTRIBUTEENUM_Round:
return CFX_GraphStateData::LineCapRound;
case XFA_ATTRIBUTEENUM_Butt:
return CFX_GraphStateData::LineCapButt;
default:
break;
}
return CFX_GraphStateData::LineCapSquare;
}
} // namespace
CXFA_FFLine::CXFA_FFLine(CXFA_WidgetAcc* pDataAcc) : CXFA_FFDraw(pDataAcc) {}
CXFA_FFLine::~CXFA_FFLine() {}
void CXFA_FFLine::GetRectFromHand(CFX_RectF& rect,
XFA_ATTRIBUTEENUM iHand,
float fLineWidth) {
float fHalfWidth = fLineWidth / 2.0f;
if (rect.height < 1.0f) {
switch (iHand) {
case XFA_ATTRIBUTEENUM_Left:
rect.top -= fHalfWidth;
break;
case XFA_ATTRIBUTEENUM_Right:
rect.top += fHalfWidth;
case XFA_ATTRIBUTEENUM_Even:
break;
default:
NOTREACHED();
break;
}
} else if (rect.width < 1.0f) {
switch (iHand) {
case XFA_ATTRIBUTEENUM_Left:
rect.left += fHalfWidth;
break;
case XFA_ATTRIBUTEENUM_Right:
rect.left += fHalfWidth;
break;
case XFA_ATTRIBUTEENUM_Even:
break;
default:
NOTREACHED();
break;
}
} else {
switch (iHand) {
case XFA_ATTRIBUTEENUM_Left:
rect.Inflate(fHalfWidth, fHalfWidth);
break;
case XFA_ATTRIBUTEENUM_Right:
rect.Deflate(fHalfWidth, fHalfWidth);
break;
case XFA_ATTRIBUTEENUM_Even:
break;
default:
NOTREACHED();
break;
}
}
}
void CXFA_FFLine::RenderWidget(CXFA_Graphics* pGS,
const CFX_Matrix& matrix,
uint32_t dwStatus) {
if (!IsMatchVisibleStatus(dwStatus))
return;
CXFA_ValueData valueData = m_pDataAcc->GetFormValueData();
if (!valueData.HasValidNode())
return;
CXFA_LineData lineData = valueData.GetLineData();
FX_ARGB lineColor = 0xFF000000;
float fLineWidth = 1.0f;
XFA_ATTRIBUTEENUM iStrokeType = XFA_ATTRIBUTEENUM_Unknown;
XFA_ATTRIBUTEENUM iCap = XFA_ATTRIBUTEENUM_Unknown;
CXFA_EdgeData edgeData = lineData.GetEdgeData();
if (edgeData.HasValidNode()) {
if (!edgeData.IsVisible())
return;
lineColor = edgeData.GetColor();
iStrokeType = edgeData.GetStrokeType();
fLineWidth = edgeData.GetThickness();
iCap = edgeData.GetCapType();
}
CFX_Matrix mtRotate = GetRotateMatrix();
mtRotate.Concat(matrix);
CFX_RectF rtLine = GetRectWithoutRotate();
CXFA_MarginData marginData = m_pDataAcc->GetMarginData();
if (marginData.HasValidNode())
XFA_RectWidthoutMargin(rtLine, marginData);
GetRectFromHand(rtLine, lineData.GetHand(), fLineWidth);
CXFA_GEPath linePath;
if (lineData.GetSlope() && rtLine.right() > 0.0f && rtLine.bottom() > 0.0f)
linePath.AddLine(rtLine.TopRight(), rtLine.BottomLeft());
else
linePath.AddLine(rtLine.TopLeft(), rtLine.BottomRight());
pGS->SaveGraphState();
pGS->SetLineWidth(fLineWidth);
pGS->EnableActOnDash();
XFA_StrokeTypeSetLineDash(pGS, iStrokeType, iCap);
pGS->SetStrokeColor(CXFA_GEColor(lineColor));
pGS->SetLineCap(LineCapToFXGE(iCap));
pGS->StrokePath(&linePath, &mtRotate);
pGS->RestoreGraphState();
}
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