// 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 "core/fxge/cfx_gemodule.h" #include "core/fxge/cfx_graphstatedata.h" #include "core/fxge/cfx_renderdevice.h" #include "core/fxge/cfx_substfont.h" #include "xfa/fde/cfde_brush.h" #include "xfa/fde/cfde_path.h" #include "xfa/fde/cfde_pen.h" #include "xfa/fgas/font/cfgas_fontmgr.h" #include "xfa/fgas/font/cfgas_gefont.h" CFDE_RenderDevice::CFDE_RenderDevice(CFX_RenderDevice* pDevice, bool bOwnerDevice) : m_pDevice(pDevice), m_bOwnerDevice(bOwnerDevice), m_iCharCount(0) { 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() { if (m_bOwnerDevice) delete m_pDevice; } 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)FXSYS_floor(rtClip.left), (int32_t)FXSYS_floor(rtClip.top), (int32_t)FXSYS_ceil(rtClip.right()), (int32_t)FXSYS_ceil(rtClip.bottom()))); } const CFX_RectF& CFDE_RenderDevice::GetClipRect() { return m_rtClip; } bool CFDE_RenderDevice::SetClipPath(const CFDE_Path* pClip) { return false; } CFDE_Path* CFDE_RenderDevice::GetClipPath() const { return nullptr; } float CFDE_RenderDevice::GetDpiX() const { return 96; } float CFDE_RenderDevice::GetDpiY() const { return 96; } bool CFDE_RenderDevice::DrawImage(const CFX_RetainPtr<CFX_DIBSource>& pDib, const CFX_RectF* pSrcRect, const CFX_RectF& dstRect, const CFX_Matrix* pImgMatrix, const CFX_Matrix* pDevMatrix) { CFX_RectF srcRect; if (pSrcRect) { srcRect = *pSrcRect; } else { srcRect = CFX_RectF(0, 0, static_cast<float>(pDib->GetWidth()), static_cast<float>(pDib->GetHeight())); } if (srcRect.IsEmpty()) return false; CFX_Matrix dib2fxdev; if (pImgMatrix) { dib2fxdev = *pImgMatrix; } else { dib2fxdev.SetIdentity(); } dib2fxdev.a = dstRect.width; dib2fxdev.d = -dstRect.height; dib2fxdev.e = dstRect.left; dib2fxdev.f = dstRect.bottom(); if (pDevMatrix) { dib2fxdev.Concat(*pDevMatrix); } void* handle = nullptr; m_pDevice->StartDIBits(pDib, 255, 0, (const CFX_Matrix*)&dib2fxdev, 0, handle); while (m_pDevice->ContinueDIBits(handle, nullptr)) { } m_pDevice->CancelDIBits(handle); return !!handle; } bool CFDE_RenderDevice::DrawString(CFDE_Brush* pBrush, const CFX_RetainPtr<CFGAS_GEFont>& pFont, const FXTEXT_CHARPOS* pCharPos, int32_t iCount, float fFontSize, const CFX_Matrix* pMatrix) { ASSERT(pBrush && pFont && pCharPos && iCount > 0); CFX_Font* pFxFont = pFont->GetDevFont(); FX_ARGB argb = pBrush->GetColor(); 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; CFX_SubstFont* SubstFxFont = new CFX_SubstFont(); FxFont.SetSubstFont(std::unique_ptr<CFX_SubstFont>(SubstFxFont)); 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); #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, argb, FXTEXT_CLEARTYPE); #else m_pDevice->DrawNormalText(iCurCount, pCurCP, pFxFont, -fFontSize, pMatrix, argb, 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, argb, FXTEXT_CLEARTYPE); FxFont.SetFace(nullptr); return bRet; #else return m_pDevice->DrawNormalText(iCurCount, pCurCP, pFxFont, -fFontSize, pMatrix, argb, 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::DrawBezier(CFDE_Pen* pPen, float fPenWidth, const CFX_PointF& pt1, const CFX_PointF& pt2, const CFX_PointF& pt3, const CFX_PointF& pt4, const CFX_Matrix* pMatrix) { std::vector<CFX_PointF> points; points.push_back(pt1); points.push_back(pt2); points.push_back(pt3); points.push_back(pt4); CFDE_Path path; path.AddBezier(points); return DrawPath(pPen, fPenWidth, &path, pMatrix); } bool CFDE_RenderDevice::DrawCurve(CFDE_Pen* pPen, float fPenWidth, const std::vector<CFX_PointF>& points, bool bClosed, float fTension, const CFX_Matrix* pMatrix) { CFDE_Path path; path.AddCurve(points, bClosed, fTension); return DrawPath(pPen, fPenWidth, &path, pMatrix); } bool CFDE_RenderDevice::DrawEllipse(CFDE_Pen* pPen, float fPenWidth, const CFX_RectF& rect, const CFX_Matrix* pMatrix) { CFDE_Path path; path.AddEllipse(rect); return DrawPath(pPen, fPenWidth, &path, pMatrix); } bool CFDE_RenderDevice::DrawLines(CFDE_Pen* pPen, float fPenWidth, const std::vector<CFX_PointF>& points, const CFX_Matrix* pMatrix) { CFDE_Path path; path.AddLines(points); return DrawPath(pPen, fPenWidth, &path, pMatrix); } bool CFDE_RenderDevice::DrawLine(CFDE_Pen* pPen, float fPenWidth, const CFX_PointF& pt1, const CFX_PointF& pt2, const CFX_Matrix* pMatrix) { CFDE_Path path; path.AddLine(pt1, pt2); return DrawPath(pPen, fPenWidth, &path, pMatrix); } bool CFDE_RenderDevice::DrawPath(CFDE_Pen* pPen, float fPenWidth, const CFDE_Path* pPath, const CFX_Matrix* pMatrix) { CFDE_Path* pGePath = (CFDE_Path*)pPath; if (!pGePath) return false; CFX_GraphStateData graphState; if (!CreatePen(pPen, fPenWidth, graphState)) { return false; } return m_pDevice->DrawPath(&pGePath->m_Path, (const CFX_Matrix*)pMatrix, &graphState, 0, pPen->GetColor(), 0); } bool CFDE_RenderDevice::DrawPolygon(CFDE_Pen* pPen, float fPenWidth, const std::vector<CFX_PointF>& points, const CFX_Matrix* pMatrix) { CFDE_Path path; path.AddPolygon(points); return DrawPath(pPen, fPenWidth, &path, pMatrix); } bool CFDE_RenderDevice::DrawRectangle(CFDE_Pen* pPen, float fPenWidth, const CFX_RectF& rect, const CFX_Matrix* pMatrix) { CFDE_Path path; path.AddRectangle(rect); return DrawPath(pPen, fPenWidth, &path, pMatrix); } bool CFDE_RenderDevice::FillClosedCurve(CFDE_Brush* pBrush, const std::vector<CFX_PointF>& points, float fTension, const CFX_Matrix* pMatrix) { CFDE_Path path; path.AddCurve(points, true, fTension); return FillPath(pBrush, &path, pMatrix); } bool CFDE_RenderDevice::FillEllipse(CFDE_Brush* pBrush, const CFX_RectF& rect, const CFX_Matrix* pMatrix) { CFDE_Path path; path.AddEllipse(rect); return FillPath(pBrush, &path, pMatrix); } bool CFDE_RenderDevice::FillPolygon(CFDE_Brush* pBrush, const std::vector<CFX_PointF>& points, const CFX_Matrix* pMatrix) { CFDE_Path path; path.AddPolygon(points); return FillPath(pBrush, &path, pMatrix); } bool CFDE_RenderDevice::FillRectangle(CFDE_Brush* pBrush, const CFX_RectF& rect, const CFX_Matrix* pMatrix) { CFDE_Path path; path.AddRectangle(rect); return FillPath(pBrush, &path, pMatrix); } bool CFDE_RenderDevice::CreatePen(CFDE_Pen* pPen, float fPenWidth, CFX_GraphStateData& graphState) { if (!pPen) return false; 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 true; } bool CFDE_RenderDevice::FillPath(CFDE_Brush* pBrush, const CFDE_Path* pPath, const CFX_Matrix* pMatrix) { CFDE_Path* pGePath = (CFDE_Path*)pPath; if (!pGePath) return false; if (!pBrush) return false; return m_pDevice->DrawPath(&pGePath->m_Path, pMatrix, nullptr, pBrush->GetColor(), 0, FXFILL_WINDING); }