diff options
Diffstat (limited to 'core/fpdfapi/fpdf_render/fpdf_render_text.cpp')
| -rw-r--r-- | core/fpdfapi/fpdf_render/fpdf_render_text.cpp | 787 |
1 files changed, 787 insertions, 0 deletions
diff --git a/core/fpdfapi/fpdf_render/fpdf_render_text.cpp b/core/fpdfapi/fpdf_render/fpdf_render_text.cpp new file mode 100644 index 0000000000..24b77ed368 --- /dev/null +++ b/core/fpdfapi/fpdf_render/fpdf_render_text.cpp @@ -0,0 +1,787 @@ +// 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 "core/fpdfapi/fpdf_render/render_int.h" + +#include "core/fpdfapi/fpdf_page/pageint.h" +#include "core/include/fpdfapi/cpdf_dictionary.h" +#include "core/include/fpdfapi/cpdf_document.h" +#include "core/include/fpdfapi/fpdf_pageobj.h" +#include "core/include/fpdfapi/fpdf_render.h" +#include "core/include/fxge/fx_ge.h" + +CPDF_Type3Cache::~CPDF_Type3Cache() { + for (const auto& pair : m_SizeMap) { + delete pair.second; + } + m_SizeMap.clear(); +} +CFX_GlyphBitmap* CPDF_Type3Cache::LoadGlyph(FX_DWORD charcode, + const CFX_Matrix* pMatrix, + FX_FLOAT retinaScaleX, + FX_FLOAT retinaScaleY) { + _CPDF_UniqueKeyGen keygen; + keygen.Generate( + 4, FXSYS_round(pMatrix->a * 10000), FXSYS_round(pMatrix->b * 10000), + FXSYS_round(pMatrix->c * 10000), FXSYS_round(pMatrix->d * 10000)); + CFX_ByteStringC FaceGlyphsKey(keygen.m_Key, keygen.m_KeyLen); + CPDF_Type3Glyphs* pSizeCache; + auto it = m_SizeMap.find(FaceGlyphsKey); + if (it == m_SizeMap.end()) { + pSizeCache = new CPDF_Type3Glyphs; + m_SizeMap[FaceGlyphsKey] = pSizeCache; + } else { + pSizeCache = it->second; + } + auto it2 = pSizeCache->m_GlyphMap.find(charcode); + if (it2 != pSizeCache->m_GlyphMap.end()) + return it2->second; + + CFX_GlyphBitmap* pGlyphBitmap = + RenderGlyph(pSizeCache, charcode, pMatrix, retinaScaleX, retinaScaleY); + pSizeCache->m_GlyphMap[charcode] = pGlyphBitmap; + return pGlyphBitmap; +} +CPDF_Type3Glyphs::~CPDF_Type3Glyphs() { + for (const auto& pair : m_GlyphMap) + delete pair.second; +} +static int _AdjustBlue(FX_FLOAT pos, int& count, int blues[]) { + FX_FLOAT min_distance = 1000000.0f * 1.0f; + int closest_pos = -1; + for (int i = 0; i < count; i++) { + FX_FLOAT distance = (FX_FLOAT)FXSYS_fabs(pos - (FX_FLOAT)blues[i]); + if (distance < 1.0f * 80.0f / 100.0f && distance < min_distance) { + min_distance = distance; + closest_pos = i; + } + } + if (closest_pos >= 0) { + return blues[closest_pos]; + } + int new_pos = FXSYS_round(pos); + if (count == TYPE3_MAX_BLUES) { + return new_pos; + } + blues[count++] = new_pos; + return new_pos; +} +void CPDF_Type3Glyphs::AdjustBlue(FX_FLOAT top, + FX_FLOAT bottom, + int& top_line, + int& bottom_line) { + top_line = _AdjustBlue(top, m_TopBlueCount, m_TopBlue); + bottom_line = _AdjustBlue(bottom, m_BottomBlueCount, m_BottomBlue); +} + +static FX_BOOL _IsScanLine1bpp(uint8_t* pBuf, int width) { + int size = width / 8; + for (int i = 0; i < size; i++) { + if (pBuf[i]) + return TRUE; + } + return (width % 8) && (pBuf[width / 8] & (0xff << (8 - width % 8))); +} + +static FX_BOOL _IsScanLine8bpp(uint8_t* pBuf, int width) { + for (int i = 0; i < width; i++) { + if (pBuf[i] > 0x40) + return TRUE; + } + return FALSE; +} + +static int _DetectFirstLastScan(const CFX_DIBitmap* pBitmap, FX_BOOL bFirst) { + int height = pBitmap->GetHeight(), pitch = pBitmap->GetPitch(), + width = pBitmap->GetWidth(); + int bpp = pBitmap->GetBPP(); + if (bpp > 8) { + width *= bpp / 8; + } + uint8_t* pBuf = pBitmap->GetBuffer(); + int line = bFirst ? 0 : height - 1; + int line_step = bFirst ? 1 : -1; + int line_end = bFirst ? height : -1; + while (line != line_end) { + if (bpp == 1) { + if (_IsScanLine1bpp(pBuf + line * pitch, width)) { + return line; + } + } else { + if (_IsScanLine8bpp(pBuf + line * pitch, width)) { + return line; + } + } + line += line_step; + } + return -1; +} +CFX_GlyphBitmap* CPDF_Type3Cache::RenderGlyph(CPDF_Type3Glyphs* pSize, + FX_DWORD charcode, + const CFX_Matrix* pMatrix, + FX_FLOAT retinaScaleX, + FX_FLOAT retinaScaleY) { + const CPDF_Type3Char* pChar = m_pFont->LoadChar(charcode); + if (!pChar || !pChar->m_pBitmap) + return nullptr; + + CFX_DIBitmap* pBitmap = pChar->m_pBitmap; + CFX_Matrix image_matrix, text_matrix; + image_matrix = pChar->m_ImageMatrix; + text_matrix.Set(pMatrix->a, pMatrix->b, pMatrix->c, pMatrix->d, 0, 0); + image_matrix.Concat(text_matrix); + CFX_DIBitmap* pResBitmap = NULL; + int left, top; + if (FXSYS_fabs(image_matrix.b) < FXSYS_fabs(image_matrix.a) / 100 && + FXSYS_fabs(image_matrix.c) < FXSYS_fabs(image_matrix.d) / 100) { + int top_line, bottom_line; + top_line = _DetectFirstLastScan(pBitmap, TRUE); + bottom_line = _DetectFirstLastScan(pBitmap, FALSE); + if (top_line == 0 && bottom_line == pBitmap->GetHeight() - 1) { + FX_FLOAT top_y = image_matrix.d + image_matrix.f; + FX_FLOAT bottom_y = image_matrix.f; + FX_BOOL bFlipped = top_y > bottom_y; + if (bFlipped) { + FX_FLOAT temp = top_y; + top_y = bottom_y; + bottom_y = temp; + } + pSize->AdjustBlue(top_y, bottom_y, top_line, bottom_line); + pResBitmap = pBitmap->StretchTo( + (int)(FXSYS_round(image_matrix.a) * retinaScaleX), + (int)((bFlipped ? top_line - bottom_line : bottom_line - top_line) * + retinaScaleY)); + top = top_line; + if (image_matrix.a < 0) { + image_matrix.Scale(retinaScaleX, retinaScaleY); + left = FXSYS_round(image_matrix.e + image_matrix.a); + } else { + left = FXSYS_round(image_matrix.e); + } + } else { + } + } + if (!pResBitmap) { + image_matrix.Scale(retinaScaleX, retinaScaleY); + pResBitmap = pBitmap->TransformTo(&image_matrix, left, top); + } + if (!pResBitmap) { + return NULL; + } + CFX_GlyphBitmap* pGlyph = new CFX_GlyphBitmap; + pGlyph->m_Left = left; + pGlyph->m_Top = -top; + pGlyph->m_Bitmap.TakeOver(pResBitmap); + delete pResBitmap; + return pGlyph; +} +void _CPDF_UniqueKeyGen::Generate(int count, ...) { + va_list argList; + va_start(argList, count); + for (int i = 0; i < count; i++) { + int p = va_arg(argList, int); + ((FX_DWORD*)m_Key)[i] = p; + } + va_end(argList); + m_KeyLen = count * sizeof(FX_DWORD); +} +FX_BOOL CPDF_RenderStatus::ProcessText(const CPDF_TextObject* textobj, + const CFX_Matrix* pObj2Device, + CFX_PathData* pClippingPath) { + if (textobj->m_nChars == 0) { + return TRUE; + } + int text_render_mode = textobj->m_TextState.GetObject()->m_TextMode; + if (text_render_mode == 3) { + return TRUE; + } + CPDF_Font* pFont = textobj->m_TextState.GetFont(); + if (pFont->IsType3Font()) { + return ProcessType3Text(textobj, pObj2Device); + } + FX_BOOL bFill = FALSE, bStroke = FALSE, bClip = FALSE; + if (pClippingPath) { + bClip = TRUE; + } else { + switch (text_render_mode) { + case 0: + case 4: + bFill = TRUE; + break; + case 1: + case 5: + if (!pFont->GetFace() && + !(pFont->GetSubstFont()->m_SubstFlags & FXFONT_SUBST_GLYPHPATH)) { + bFill = TRUE; + } else { + bStroke = TRUE; + } + break; + case 2: + case 6: + if (!pFont->GetFace() && + !(pFont->GetSubstFont()->m_SubstFlags & FXFONT_SUBST_GLYPHPATH)) { + bFill = TRUE; + } else { + bFill = bStroke = TRUE; + } + break; + case 3: + case 7: + return TRUE; + default: + bFill = TRUE; + } + } + FX_ARGB stroke_argb = 0, fill_argb = 0; + FX_BOOL bPattern = FALSE; + if (bStroke) { + if (textobj->m_ColorState.GetStrokeColor()->IsPattern()) { + bPattern = TRUE; + } else { + stroke_argb = GetStrokeArgb(textobj); + } + } + if (bFill) { + if (textobj->m_ColorState.GetFillColor()->IsPattern()) { + bPattern = TRUE; + } else { + fill_argb = GetFillArgb(textobj); + } + } + CFX_Matrix text_matrix; + textobj->GetTextMatrix(&text_matrix); + if (IsAvailableMatrix(text_matrix) == FALSE) { + return TRUE; + } + FX_FLOAT font_size = textobj->m_TextState.GetFontSize(); + if (bPattern) { + DrawTextPathWithPattern(textobj, pObj2Device, pFont, font_size, + &text_matrix, bFill, bStroke); + return TRUE; + } + if (bClip || bStroke) { + const CFX_Matrix* pDeviceMatrix = pObj2Device; + CFX_Matrix device_matrix; + if (bStroke) { + const FX_FLOAT* pCTM = textobj->m_TextState.GetObject()->m_CTM; + if (pCTM[0] != 1.0f || pCTM[3] != 1.0f) { + CFX_Matrix ctm(pCTM[0], pCTM[1], pCTM[2], pCTM[3], 0, 0); + text_matrix.ConcatInverse(ctm); + device_matrix.Copy(ctm); + device_matrix.Concat(*pObj2Device); + pDeviceMatrix = &device_matrix; + } + } + int flag = 0; + if (bStroke && bFill) { + flag |= FX_FILL_STROKE; + flag |= FX_STROKE_TEXT_MODE; + } + const CPDF_GeneralStateData* pGeneralData = + ((CPDF_PageObject*)textobj)->m_GeneralState; + if (pGeneralData && pGeneralData->m_StrokeAdjust) { + flag |= FX_STROKE_ADJUST; + } + if (m_Options.m_Flags & RENDER_NOTEXTSMOOTH) { + flag |= FXFILL_NOPATHSMOOTH; + } + return CPDF_TextRenderer::DrawTextPath( + m_pDevice, textobj->m_nChars, textobj->m_pCharCodes, + textobj->m_pCharPos, pFont, font_size, &text_matrix, pDeviceMatrix, + textobj->m_GraphState, fill_argb, stroke_argb, pClippingPath, flag); + } + text_matrix.Concat(*pObj2Device); + return CPDF_TextRenderer::DrawNormalText( + m_pDevice, textobj->m_nChars, textobj->m_pCharCodes, textobj->m_pCharPos, + pFont, font_size, &text_matrix, fill_argb, &m_Options); +} +CPDF_Type3Cache* CPDF_RenderStatus::GetCachedType3(CPDF_Type3Font* pFont) { + if (!pFont->m_pDocument) { + return NULL; + } + pFont->m_pDocument->GetPageData()->GetFont(pFont->GetFontDict(), FALSE); + return pFont->m_pDocument->GetRenderData()->GetCachedType3(pFont); +} +static void ReleaseCachedType3(CPDF_Type3Font* pFont) { + if (!pFont->m_pDocument) { + return; + } + pFont->m_pDocument->GetRenderData()->ReleaseCachedType3(pFont); + pFont->m_pDocument->GetPageData()->ReleaseFont(pFont->GetFontDict()); +} +FX_BOOL CPDF_Type3Char::LoadBitmap(CPDF_RenderContext* pContext) { + if (m_pBitmap || !m_pForm) { + return TRUE; + } + if (m_pForm->GetPageObjectList()->size() == 1 && !m_bColored) { + auto& pPageObj = m_pForm->GetPageObjectList()->front(); + if (pPageObj->IsImage()) { + m_ImageMatrix = pPageObj->AsImage()->m_Matrix; + const CFX_DIBSource* pSource = + pPageObj->AsImage()->m_pImage->LoadDIBSource(); + if (pSource) { + m_pBitmap = pSource->Clone(); + delete pSource; + } + delete m_pForm; + m_pForm = NULL; + return TRUE; + } + } + return FALSE; +} +class CPDF_RefType3Cache { + public: + CPDF_RefType3Cache(CPDF_Type3Font* pType3Font) { + m_dwCount = 0; + m_pType3Font = pType3Font; + } + ~CPDF_RefType3Cache() { + while (m_dwCount--) { + ReleaseCachedType3(m_pType3Font); + } + } + FX_DWORD m_dwCount; + CPDF_Type3Font* m_pType3Font; +}; +FX_BOOL CPDF_RenderStatus::ProcessType3Text(const CPDF_TextObject* textobj, + const CFX_Matrix* pObj2Device) { + CPDF_Type3Font* pType3Font = textobj->m_TextState.GetFont()->AsType3Font(); + for (int j = 0; j < m_Type3FontCache.GetSize(); j++) { + if (m_Type3FontCache.GetAt(j) == pType3Font) + return TRUE; + } + CFX_Matrix dCTM = m_pDevice->GetCTM(); + FX_FLOAT sa = FXSYS_fabs(dCTM.a); + FX_FLOAT sd = FXSYS_fabs(dCTM.d); + CFX_Matrix text_matrix; + textobj->GetTextMatrix(&text_matrix); + CFX_Matrix char_matrix = pType3Font->GetFontMatrix(); + FX_FLOAT font_size = textobj->m_TextState.GetFontSize(); + char_matrix.Scale(font_size, font_size); + FX_ARGB fill_argb = GetFillArgb(textobj, TRUE); + int fill_alpha = FXARGB_A(fill_argb); + int device_class = m_pDevice->GetDeviceClass(); + FXTEXT_GLYPHPOS* pGlyphAndPos = NULL; + if (device_class == FXDC_DISPLAY) { + pGlyphAndPos = FX_Alloc(FXTEXT_GLYPHPOS, textobj->m_nChars); + } else if (fill_alpha < 255) { + return FALSE; + } + CPDF_RefType3Cache refTypeCache(pType3Font); + FX_DWORD* pChars = textobj->m_pCharCodes; + if (textobj->m_nChars == 1) { + pChars = (FX_DWORD*)(&textobj->m_pCharCodes); + } + for (int iChar = 0; iChar < textobj->m_nChars; iChar++) { + FX_DWORD charcode = pChars[iChar]; + if (charcode == (FX_DWORD)-1) { + continue; + } + CPDF_Type3Char* pType3Char = pType3Font->LoadChar(charcode); + if (!pType3Char) { + continue; + } + CFX_Matrix matrix = char_matrix; + matrix.e += iChar ? textobj->m_pCharPos[iChar - 1] : 0; + matrix.Concat(text_matrix); + matrix.Concat(*pObj2Device); + if (!pType3Char->LoadBitmap(m_pContext)) { + if (pGlyphAndPos) { + for (int i = 0; i < iChar; i++) { + FXTEXT_GLYPHPOS& glyph = pGlyphAndPos[i]; + if (!glyph.m_pGlyph) { + continue; + } + m_pDevice->SetBitMask(&glyph.m_pGlyph->m_Bitmap, + glyph.m_OriginX + glyph.m_pGlyph->m_Left, + glyph.m_OriginY - glyph.m_pGlyph->m_Top, + fill_argb); + } + FX_Free(pGlyphAndPos); + pGlyphAndPos = NULL; + } + CPDF_GraphicStates* pStates = CloneObjStates(textobj, FALSE); + CPDF_RenderOptions Options = m_Options; + Options.m_Flags |= RENDER_FORCE_HALFTONE | RENDER_RECT_AA; + Options.m_Flags &= ~RENDER_FORCE_DOWNSAMPLE; + CPDF_Dictionary* pFormResource = NULL; + if (pType3Char->m_pForm && pType3Char->m_pForm->m_pFormDict) { + pFormResource = + pType3Char->m_pForm->m_pFormDict->GetDictBy("Resources"); + } + if (fill_alpha == 255) { + CPDF_RenderStatus status; + status.Initialize(m_pContext, m_pDevice, NULL, NULL, this, pStates, + &Options, pType3Char->m_pForm->m_Transparency, + m_bDropObjects, pFormResource, FALSE, pType3Char, + fill_argb); + status.m_Type3FontCache.Append(m_Type3FontCache); + status.m_Type3FontCache.Add(pType3Font); + m_pDevice->SaveState(); + status.RenderObjectList(pType3Char->m_pForm, &matrix); + m_pDevice->RestoreState(); + } else { + CFX_FloatRect rect_f = pType3Char->m_pForm->CalcBoundingBox(); + rect_f.Transform(&matrix); + FX_RECT rect = rect_f.GetOutterRect(); + CFX_FxgeDevice bitmap_device; + if (!bitmap_device.Create((int)(rect.Width() * sa), + (int)(rect.Height() * sd), FXDIB_Argb)) { + return TRUE; + } + bitmap_device.GetBitmap()->Clear(0); + CPDF_RenderStatus status; + status.Initialize(m_pContext, &bitmap_device, NULL, NULL, this, pStates, + &Options, pType3Char->m_pForm->m_Transparency, + m_bDropObjects, pFormResource, FALSE, pType3Char, + fill_argb); + status.m_Type3FontCache.Append(m_Type3FontCache); + status.m_Type3FontCache.Add(pType3Font); + matrix.TranslateI(-rect.left, -rect.top); + matrix.Scale(sa, sd); + status.RenderObjectList(pType3Char->m_pForm, &matrix); + m_pDevice->SetDIBits(bitmap_device.GetBitmap(), rect.left, rect.top); + } + delete pStates; + } else if (pType3Char->m_pBitmap) { + if (device_class == FXDC_DISPLAY) { + CPDF_Type3Cache* pCache = GetCachedType3(pType3Font); + refTypeCache.m_dwCount++; + CFX_GlyphBitmap* pBitmap = pCache->LoadGlyph(charcode, &matrix, sa, sd); + if (!pBitmap) { + continue; + } + int origin_x = FXSYS_round(matrix.e); + int origin_y = FXSYS_round(matrix.f); + if (pGlyphAndPos) { + pGlyphAndPos[iChar].m_pGlyph = pBitmap; + pGlyphAndPos[iChar].m_OriginX = origin_x; + pGlyphAndPos[iChar].m_OriginY = origin_y; + } else { + m_pDevice->SetBitMask(&pBitmap->m_Bitmap, origin_x + pBitmap->m_Left, + origin_y - pBitmap->m_Top, fill_argb); + } + } else { + CFX_Matrix image_matrix = pType3Char->m_ImageMatrix; + image_matrix.Concat(matrix); + CPDF_ImageRenderer renderer; + if (renderer.Start(this, pType3Char->m_pBitmap, fill_argb, 255, + &image_matrix, 0, FALSE)) { + renderer.Continue(NULL); + } + if (!renderer.m_Result) { + return FALSE; + } + } + } + } + if (pGlyphAndPos) { + FX_RECT rect = + FXGE_GetGlyphsBBox(pGlyphAndPos, textobj->m_nChars, 0, sa, sd); + CFX_DIBitmap bitmap; + if (!bitmap.Create((int)(rect.Width() * sa), (int)(rect.Height() * sd), + FXDIB_8bppMask)) { + FX_Free(pGlyphAndPos); + return TRUE; + } + bitmap.Clear(0); + for (int iChar = 0; iChar < textobj->m_nChars; iChar++) { + FXTEXT_GLYPHPOS& glyph = pGlyphAndPos[iChar]; + if (!glyph.m_pGlyph) { + continue; + } + bitmap.TransferBitmap( + (int)((glyph.m_OriginX + glyph.m_pGlyph->m_Left - rect.left) * sa), + (int)((glyph.m_OriginY - glyph.m_pGlyph->m_Top - rect.top) * sd), + glyph.m_pGlyph->m_Bitmap.GetWidth(), + glyph.m_pGlyph->m_Bitmap.GetHeight(), &glyph.m_pGlyph->m_Bitmap, 0, + 0); + } + m_pDevice->SetBitMask(&bitmap, rect.left, rect.top, fill_argb); + FX_Free(pGlyphAndPos); + } + return TRUE; +} +class CPDF_CharPosList { + public: + CPDF_CharPosList(); + ~CPDF_CharPosList(); + void Load(int nChars, + FX_DWORD* pCharCodes, + FX_FLOAT* pCharPos, + CPDF_Font* pFont, + FX_FLOAT font_size); + FXTEXT_CHARPOS* m_pCharPos; + FX_DWORD m_nChars; +}; + +CPDF_CharPosList::CPDF_CharPosList() { + m_pCharPos = NULL; +} +CPDF_CharPosList::~CPDF_CharPosList() { + FX_Free(m_pCharPos); +} +void CPDF_CharPosList::Load(int nChars, + FX_DWORD* pCharCodes, + FX_FLOAT* pCharPos, + CPDF_Font* pFont, + FX_FLOAT FontSize) { + m_pCharPos = FX_Alloc(FXTEXT_CHARPOS, nChars); + m_nChars = 0; + CPDF_CIDFont* pCIDFont = pFont->AsCIDFont(); + FX_BOOL bVertWriting = pCIDFont && pCIDFont->IsVertWriting(); + for (int iChar = 0; iChar < nChars; iChar++) { + FX_DWORD CharCode = + nChars == 1 ? (FX_DWORD)(uintptr_t)pCharCodes : pCharCodes[iChar]; + if (CharCode == (FX_DWORD)-1) { + continue; + } + FX_BOOL bVert = FALSE; + FXTEXT_CHARPOS& charpos = m_pCharPos[m_nChars++]; + if (pCIDFont) { + charpos.m_bFontStyle = pCIDFont->IsFontStyleFromCharCode(CharCode); + } + charpos.m_GlyphIndex = pFont->GlyphFromCharCode(CharCode, &bVert); +#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ + charpos.m_ExtGID = pFont->GlyphFromCharCodeExt(CharCode); +#endif + if (!pFont->IsEmbedded() && !pFont->IsCIDFont()) { + charpos.m_FontCharWidth = pFont->GetCharWidthF(CharCode); + } else { + charpos.m_FontCharWidth = 0; + } + charpos.m_OriginX = iChar ? pCharPos[iChar - 1] : 0; + charpos.m_OriginY = 0; + charpos.m_bGlyphAdjust = FALSE; + if (!pCIDFont) { + continue; + } + FX_WORD CID = pCIDFont->CIDFromCharCode(CharCode); + if (bVertWriting) { + charpos.m_OriginY = charpos.m_OriginX; + charpos.m_OriginX = 0; + short vx, vy; + pCIDFont->GetVertOrigin(CID, vx, vy); + charpos.m_OriginX -= FontSize * vx / 1000; + charpos.m_OriginY -= FontSize * vy / 1000; + } + const uint8_t* pTransform = pCIDFont->GetCIDTransform(CID); + if (pTransform && !bVert) { + charpos.m_AdjustMatrix[0] = pCIDFont->CIDTransformToFloat(pTransform[0]); + charpos.m_AdjustMatrix[2] = pCIDFont->CIDTransformToFloat(pTransform[2]); + charpos.m_AdjustMatrix[1] = pCIDFont->CIDTransformToFloat(pTransform[1]); + charpos.m_AdjustMatrix[3] = pCIDFont->CIDTransformToFloat(pTransform[3]); + charpos.m_OriginX += + pCIDFont->CIDTransformToFloat(pTransform[4]) * FontSize; + charpos.m_OriginY += + pCIDFont->CIDTransformToFloat(pTransform[5]) * FontSize; + charpos.m_bGlyphAdjust = TRUE; + } + } +} +FX_BOOL CPDF_TextRenderer::DrawTextPath(CFX_RenderDevice* pDevice, + int nChars, + FX_DWORD* pCharCodes, + FX_FLOAT* pCharPos, + CPDF_Font* pFont, + FX_FLOAT font_size, + const CFX_Matrix* pText2User, + const CFX_Matrix* pUser2Device, + const CFX_GraphStateData* pGraphState, + FX_ARGB fill_argb, + FX_ARGB stroke_argb, + CFX_PathData* pClippingPath, + int nFlag) { + CFX_FontCache* pCache = + pFont->m_pDocument ? pFont->m_pDocument->GetRenderData()->GetFontCache() + : NULL; + CPDF_CharPosList CharPosList; + CharPosList.Load(nChars, pCharCodes, pCharPos, pFont, font_size); + return pDevice->DrawTextPath(CharPosList.m_nChars, CharPosList.m_pCharPos, + &pFont->m_Font, pCache, font_size, pText2User, + pUser2Device, pGraphState, fill_argb, + stroke_argb, pClippingPath, nFlag); +} +void CPDF_TextRenderer::DrawTextString(CFX_RenderDevice* pDevice, + int left, + int top, + CPDF_Font* pFont, + int height, + const CFX_ByteString& str, + FX_ARGB argb) { + FX_RECT font_bbox; + pFont->GetFontBBox(font_bbox); + FX_FLOAT font_size = + (FX_FLOAT)height * 1000.0f / (FX_FLOAT)(font_bbox.top - font_bbox.bottom); + FX_FLOAT origin_x = (FX_FLOAT)left; + FX_FLOAT origin_y = + (FX_FLOAT)top + font_size * (FX_FLOAT)font_bbox.top / 1000.0f; + CFX_Matrix matrix(1.0f, 0, 0, -1.0f, 0, 0); + DrawTextString(pDevice, origin_x, origin_y, pFont, font_size, &matrix, str, + argb); +} +void CPDF_TextRenderer::DrawTextString(CFX_RenderDevice* pDevice, + FX_FLOAT origin_x, + FX_FLOAT origin_y, + CPDF_Font* pFont, + FX_FLOAT font_size, + const CFX_Matrix* pMatrix, + const CFX_ByteString& str, + FX_ARGB fill_argb, + FX_ARGB stroke_argb, + const CFX_GraphStateData* pGraphState, + const CPDF_RenderOptions* pOptions) { + int nChars = pFont->CountChar(str, str.GetLength()); + if (nChars == 0) { + return; + } + FX_DWORD charcode; + int offset = 0; + FX_DWORD* pCharCodes; + FX_FLOAT* pCharPos; + if (nChars == 1) { + charcode = pFont->GetNextChar(str, str.GetLength(), offset); + pCharCodes = (FX_DWORD*)(uintptr_t)charcode; + pCharPos = NULL; + } else { + pCharCodes = FX_Alloc(FX_DWORD, nChars); + pCharPos = FX_Alloc(FX_FLOAT, nChars - 1); + FX_FLOAT cur_pos = 0; + for (int i = 0; i < nChars; i++) { + pCharCodes[i] = pFont->GetNextChar(str, str.GetLength(), offset); + if (i) { + pCharPos[i - 1] = cur_pos; + } + cur_pos += pFont->GetCharWidthF(pCharCodes[i]) * font_size / 1000; + } + } + CFX_Matrix matrix; + if (pMatrix) + matrix = *pMatrix; + + matrix.e = origin_x; + matrix.f = origin_y; + + if (!pFont->IsType3Font()) { + if (stroke_argb == 0) { + DrawNormalText(pDevice, nChars, pCharCodes, pCharPos, pFont, font_size, + &matrix, fill_argb, pOptions); + } else { + DrawTextPath(pDevice, nChars, pCharCodes, pCharPos, pFont, font_size, + &matrix, NULL, pGraphState, fill_argb, stroke_argb, NULL); + } + } + + if (nChars > 1) { + FX_Free(pCharCodes); + FX_Free(pCharPos); + } +} +FX_BOOL CPDF_TextRenderer::DrawNormalText(CFX_RenderDevice* pDevice, + int nChars, + FX_DWORD* pCharCodes, + FX_FLOAT* pCharPos, + CPDF_Font* pFont, + FX_FLOAT font_size, + const CFX_Matrix* pText2Device, + FX_ARGB fill_argb, + const CPDF_RenderOptions* pOptions) { + CFX_FontCache* pCache = + pFont->m_pDocument ? pFont->m_pDocument->GetRenderData()->GetFontCache() + : NULL; + CPDF_CharPosList CharPosList; + CharPosList.Load(nChars, pCharCodes, pCharPos, pFont, font_size); + int FXGE_flags = 0; + if (pOptions) { + FX_DWORD dwFlags = pOptions->m_Flags; + if (dwFlags & RENDER_CLEARTYPE) { + FXGE_flags |= FXTEXT_CLEARTYPE; + if (dwFlags & RENDER_BGR_STRIPE) { + FXGE_flags |= FXTEXT_BGR_STRIPE; + } + } + if (dwFlags & RENDER_NOTEXTSMOOTH) { + FXGE_flags |= FXTEXT_NOSMOOTH; + } + if (dwFlags & RENDER_PRINTGRAPHICTEXT) { + FXGE_flags |= FXTEXT_PRINTGRAPHICTEXT; + } + if (dwFlags & RENDER_NO_NATIVETEXT) { + FXGE_flags |= FXTEXT_NO_NATIVETEXT; + } + if (dwFlags & RENDER_PRINTIMAGETEXT) { + FXGE_flags |= FXTEXT_PRINTIMAGETEXT; + } + } else { + FXGE_flags = FXTEXT_CLEARTYPE; + } + if (pFont->IsCIDFont()) { + FXGE_flags |= FXFONT_CIDFONT; + } + return pDevice->DrawNormalText(CharPosList.m_nChars, CharPosList.m_pCharPos, + &pFont->m_Font, pCache, font_size, + pText2Device, fill_argb, FXGE_flags); +} +void CPDF_RenderStatus::DrawTextPathWithPattern(const CPDF_TextObject* textobj, + const CFX_Matrix* pObj2Device, + CPDF_Font* pFont, + FX_FLOAT font_size, + const CFX_Matrix* pTextMatrix, + FX_BOOL bFill, + FX_BOOL bStroke) { + if (!bStroke) { + CPDF_PathObject path; + CPDF_TextObject* pCopy = textobj->Clone(); + path.m_bStroke = FALSE; + path.m_FillType = FXFILL_WINDING; + path.m_ClipPath.AppendTexts(&pCopy, 1); + path.m_ColorState = textobj->m_ColorState; + path.m_Path.New()->AppendRect(textobj->m_Left, textobj->m_Bottom, + textobj->m_Right, textobj->m_Top); + path.m_Left = textobj->m_Left; + path.m_Bottom = textobj->m_Bottom; + path.m_Right = textobj->m_Right; + path.m_Top = textobj->m_Top; + RenderSingleObject(&path, pObj2Device); + return; + } + CFX_FontCache* pCache; + if (pFont->m_pDocument) { + pCache = pFont->m_pDocument->GetRenderData()->GetFontCache(); + } else { + pCache = CFX_GEModule::Get()->GetFontCache(); + } + CFX_FaceCache* pFaceCache = pCache->GetCachedFace(&pFont->m_Font); + FX_FONTCACHE_DEFINE(pCache, &pFont->m_Font); + CPDF_CharPosList CharPosList; + CharPosList.Load(textobj->m_nChars, textobj->m_pCharCodes, + textobj->m_pCharPos, pFont, font_size); + for (FX_DWORD i = 0; i < CharPosList.m_nChars; i++) { + FXTEXT_CHARPOS& charpos = CharPosList.m_pCharPos[i]; + const CFX_PathData* pPath = pFaceCache->LoadGlyphPath( + &pFont->m_Font, charpos.m_GlyphIndex, charpos.m_FontCharWidth); + if (!pPath) { + continue; + } + CPDF_PathObject path; + path.m_GraphState = textobj->m_GraphState; + path.m_ColorState = textobj->m_ColorState; + CFX_Matrix matrix; + if (charpos.m_bGlyphAdjust) + matrix.Set(charpos.m_AdjustMatrix[0], charpos.m_AdjustMatrix[1], + charpos.m_AdjustMatrix[2], charpos.m_AdjustMatrix[3], 0, 0); + matrix.Concat(font_size, 0, 0, font_size, charpos.m_OriginX, + charpos.m_OriginY); + path.m_Path.New()->Append(pPath, &matrix); + path.m_Matrix = *pTextMatrix; + path.m_bStroke = bStroke; + path.m_FillType = bFill ? FXFILL_WINDING : 0; + path.CalcBoundingBox(); + ProcessPath(&path, pObj2Device); + } +} |