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// Copyright 2014 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/fde/cfde_renderdevice.h"
#include <algorithm>
#include <memory>
#include <utility>
#include "core/fxge/cfx_graphstatedata.h"
#include "core/fxge/cfx_renderdevice.h"
#include "core/fxge/cfx_substfont.h"
#include "core/fxge/dib/cfx_imagerenderer.h"
#include "third_party/base/ptr_util.h"
#include "xfa/fde/cfde_path.h"
#include "xfa/fgas/font/cfgas_fontmgr.h"
#include "xfa/fgas/font/cfgas_gefont.h"
CFDE_RenderDevice::CFDE_RenderDevice(CFX_RenderDevice* pDevice)
: m_pDevice(pDevice) {
ASSERT(pDevice);
FX_RECT rt = m_pDevice->GetClipBox();
m_rtClip = CFX_RectF(static_cast<float>(rt.left), static_cast<float>(rt.top),
static_cast<float>(rt.Width()),
static_cast<float>(rt.Height()));
}
CFDE_RenderDevice::~CFDE_RenderDevice() {}
int32_t CFDE_RenderDevice::GetWidth() const {
return m_pDevice->GetWidth();
}
int32_t CFDE_RenderDevice::GetHeight() const {
return m_pDevice->GetHeight();
}
void CFDE_RenderDevice::SaveState() {
m_pDevice->SaveState();
}
void CFDE_RenderDevice::RestoreState() {
m_pDevice->RestoreState(false);
const FX_RECT& rt = m_pDevice->GetClipBox();
m_rtClip = CFX_RectF(static_cast<float>(rt.left), static_cast<float>(rt.top),
static_cast<float>(rt.Width()),
static_cast<float>(rt.Height()));
}
bool CFDE_RenderDevice::SetClipRect(const CFX_RectF& rtClip) {
m_rtClip = rtClip;
return m_pDevice->SetClip_Rect(
FX_RECT((int32_t)floor(rtClip.left), (int32_t)floor(rtClip.top),
(int32_t)ceil(rtClip.right()), (int32_t)ceil(rtClip.bottom())));
}
const CFX_RectF& CFDE_RenderDevice::GetClipRect() {
return m_rtClip;
}
bool CFDE_RenderDevice::DrawString(FX_ARGB color,
const CFX_RetainPtr<CFGAS_GEFont>& pFont,
const FXTEXT_CHARPOS* pCharPos,
int32_t iCount,
float fFontSize,
const CFX_Matrix* pMatrix) {
ASSERT(pFont && pCharPos && iCount > 0);
CFX_Font* pFxFont = pFont->GetDevFont();
if ((pFont->GetFontStyles() & FX_FONTSTYLE_Italic) != 0 &&
!pFxFont->IsItalic()) {
FXTEXT_CHARPOS* pCP = (FXTEXT_CHARPOS*)pCharPos;
float* pAM;
for (int32_t i = 0; i < iCount; ++i) {
static const float mc = 0.267949f;
pAM = pCP->m_AdjustMatrix;
pAM[2] = mc * pAM[0] + pAM[2];
pAM[3] = mc * pAM[1] + pAM[3];
pCP++;
}
}
FXTEXT_CHARPOS* pCP = (FXTEXT_CHARPOS*)pCharPos;
CFX_RetainPtr<CFGAS_GEFont> pCurFont;
CFX_RetainPtr<CFGAS_GEFont> pSTFont;
FXTEXT_CHARPOS* pCurCP = nullptr;
int32_t iCurCount = 0;
#if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_
uint32_t dwFontStyle = pFont->GetFontStyles();
CFX_Font FxFont;
auto SubstFxFont = pdfium::MakeUnique<CFX_SubstFont>();
SubstFxFont->m_Weight = dwFontStyle & FX_FONTSTYLE_Bold ? 700 : 400;
SubstFxFont->m_ItalicAngle = dwFontStyle & FX_FONTSTYLE_Italic ? -12 : 0;
SubstFxFont->m_WeightCJK = SubstFxFont->m_Weight;
SubstFxFont->m_bItalicCJK = !!(dwFontStyle & FX_FONTSTYLE_Italic);
FxFont.SetSubstFont(std::move(SubstFxFont));
#endif // _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_
for (int32_t i = 0; i < iCount; ++i) {
pSTFont = pFont->GetSubstFont((int32_t)pCP->m_GlyphIndex);
pCP->m_GlyphIndex &= 0x00FFFFFF;
pCP->m_bFontStyle = false;
if (pCurFont != pSTFont) {
if (pCurFont) {
pFxFont = pCurFont->GetDevFont();
#if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_
FxFont.SetFace(pFxFont->GetFace());
m_pDevice->DrawNormalText(iCurCount, pCurCP, &FxFont, -fFontSize,
pMatrix, color, FXTEXT_CLEARTYPE);
#else
m_pDevice->DrawNormalText(iCurCount, pCurCP, pFxFont, -fFontSize,
pMatrix, color, FXTEXT_CLEARTYPE);
#endif // _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_
}
pCurFont = pSTFont;
pCurCP = pCP;
iCurCount = 1;
} else {
iCurCount++;
}
pCP++;
}
if (pCurFont && iCurCount) {
pFxFont = pCurFont->GetDevFont();
#if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_
FxFont.SetFace(pFxFont->GetFace());
bool bRet =
m_pDevice->DrawNormalText(iCurCount, pCurCP, &FxFont, -fFontSize,
pMatrix, color, FXTEXT_CLEARTYPE);
FxFont.SetFace(nullptr);
return bRet;
#else
return m_pDevice->DrawNormalText(iCurCount, pCurCP, pFxFont, -fFontSize,
pMatrix, color, FXTEXT_CLEARTYPE);
#endif // _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_
}
#if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_
FxFont.SetFace(nullptr);
#endif // _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_
return true;
}
bool CFDE_RenderDevice::DrawPath(FX_ARGB color,
float fPenWidth,
const CFDE_Path* pPath,
const CFX_Matrix* pMatrix) {
CFDE_Path* pGePath = (CFDE_Path*)pPath;
if (!pGePath)
return false;
CFX_GraphStateData graphState;
graphState.m_LineCap = CFX_GraphStateData::LineCapButt;
graphState.m_LineJoin = CFX_GraphStateData::LineJoinMiter;
graphState.m_LineWidth = fPenWidth;
graphState.m_MiterLimit = 10;
graphState.m_DashPhase = 0;
return m_pDevice->DrawPath(&pGePath->m_Path, (const CFX_Matrix*)pMatrix,
&graphState, 0, color, 0);
}
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