From 5110c4743751145c4ae1934cd1d83bc6c55bb43f Mon Sep 17 00:00:00 2001 From: John Abd-El-Malek Date: Sat, 17 May 2014 22:33:34 -0700 Subject: Initial commit. --- core/src/fpdfapi/fpdf_render/fpdf_render_text.cpp | 760 ++++++++++++++++++++++ 1 file changed, 760 insertions(+) create mode 100644 core/src/fpdfapi/fpdf_render/fpdf_render_text.cpp (limited to 'core/src/fpdfapi/fpdf_render/fpdf_render_text.cpp') diff --git a/core/src/fpdfapi/fpdf_render/fpdf_render_text.cpp b/core/src/fpdfapi/fpdf_render/fpdf_render_text.cpp new file mode 100644 index 0000000000..91ff982935 --- /dev/null +++ b/core/src/fpdfapi/fpdf_render/fpdf_render_text.cpp @@ -0,0 +1,760 @@ +// 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 "../../../include/fxge/fx_ge.h" +#include "../../../include/fpdfapi/fpdf_render.h" +#include "../../../include/fpdfapi/fpdf_pageobj.h" +#include "../fpdf_page/pageint.h" +#include "render_int.h" +extern FX_BOOL IsAvailableMatrix(const CFX_AffineMatrix& matrix); +CPDF_Type3Cache::~CPDF_Type3Cache() +{ + FX_POSITION pos = m_SizeMap.GetStartPosition(); + CFX_ByteString Key; + CPDF_Type3Glyphs* pSizeCache = NULL; + while(pos) { + pSizeCache = (CPDF_Type3Glyphs*)m_SizeMap.GetNextValue(pos); + delete pSizeCache; + } + m_SizeMap.RemoveAll(); +} +CFX_GlyphBitmap* CPDF_Type3Cache::LoadGlyph(FX_DWORD charcode, const CFX_AffineMatrix* 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 = NULL; + if(!m_SizeMap.Lookup(FaceGlyphsKey, (void*&)pSizeCache)) { + pSizeCache = FX_NEW CPDF_Type3Glyphs; + m_SizeMap.SetAt(FaceGlyphsKey, pSizeCache); + } + CFX_GlyphBitmap* pGlyphBitmap; + if(pSizeCache->m_GlyphMap.Lookup((FX_LPVOID)(FX_UINTPTR)charcode, (void*&)pGlyphBitmap)) { + return pGlyphBitmap; + } + pGlyphBitmap = RenderGlyph(pSizeCache, charcode, pMatrix, retinaScaleX, retinaScaleY); + pSizeCache->m_GlyphMap.SetAt((FX_LPVOID)(FX_UINTPTR)charcode, pGlyphBitmap); + return pGlyphBitmap; +} +CPDF_Type3Glyphs::~CPDF_Type3Glyphs() +{ + FX_POSITION pos = m_GlyphMap.GetStartPosition(); + FX_LPVOID Key; + CFX_GlyphBitmap* pGlyphBitmap; + while(pos) { + m_GlyphMap.GetNextAssoc(pos, Key, (void*&)pGlyphBitmap); + delete pGlyphBitmap; + } +} +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(FX_LPBYTE pBuf, int width) +{ + int size = width / 8; + for (int i = 0; i < size; i ++) + if (pBuf[i]) { + return TRUE; + } + if (width % 8) + if (pBuf[width / 8] & (0xff << (8 - width % 8))) { + return TRUE; + } + return FALSE; +} +static FX_BOOL _IsScanLine8bpp(FX_LPBYTE 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; + } + FX_LPBYTE 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_AffineMatrix* pMatrix, FX_FLOAT retinaScaleX, FX_FLOAT retinaScaleY) +{ + CPDF_Type3Char* pChar = m_pFont->LoadChar(charcode); + if (pChar == NULL || pChar->m_pBitmap == NULL) { + return NULL; + } + CFX_DIBitmap* pBitmap = pChar->m_pBitmap; + CFX_AffineMatrix 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 == NULL) { + image_matrix.Scale(retinaScaleX, retinaScaleY); + pResBitmap = pBitmap->TransformTo(&image_matrix, left, top); + } + if (pResBitmap == NULL) { + return NULL; + } + CFX_GlyphBitmap* pGlyph = FX_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_AffineMatrix* 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->GetFontType() == PDFFONT_TYPE3) { + 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() == NULL && !(pFont->GetSubstFont()->m_SubstFlags & FXFONT_SUBST_GLYPHPATH)) { + bFill = TRUE; + } else { + bStroke = TRUE; + } + break; + case 2: + case 6: + if (pFont->GetFace() == NULL && !(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_AffineMatrix 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 defined(_FPDFAPI_MINI_) + if (bFill) { + bStroke = FALSE; + } + if (bStroke) { + if (font_size * text_matrix.GetXUnit() * pObj2Device->GetXUnit() < 6) { + bStroke = FALSE; + } + } +#endif + if (bClip || bStroke) { + const CFX_AffineMatrix* pDeviceMatrix = pObj2Device; + CFX_AffineMatrix device_matrix; + if (bStroke) { + const FX_FLOAT* pCTM = textobj->m_TextState.GetObject()->m_CTM; + if (pCTM[0] != 1.0f || pCTM[3] != 1.0f) { + CFX_AffineMatrix 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; + } +#if !defined(_FPDFAPI_MINI_) || defined(_FXCORE_FEATURE_ALL_) + const CPDF_GeneralStateData* pGeneralData = ((CPDF_PageObject*)textobj)->m_GeneralState; + if (pGeneralData && pGeneralData->m_StrokeAdjust) { + flag |= FX_STROKE_ADJUST; + } +#endif + 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 == NULL) { + 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 == NULL) { + 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 != NULL || m_pForm == NULL) { + return TRUE; + } + if (m_pForm->CountObjects() == 1 && !m_bColored) { + CPDF_PageObject *pPageObj = m_pForm->GetObjectAt(m_pForm->GetFirstObjectPosition()); + if (pPageObj->m_Type == PDFPAGE_IMAGE) { + CPDF_ImageObject* pImage = (CPDF_ImageObject*)pPageObj; + m_ImageMatrix = pImage->m_Matrix; + const CFX_DIBSource* pSource = pImage->m_pImage->LoadDIBSource(); + if (pSource) { + m_pBitmap = pSource->Clone(); + delete pSource; + } + delete m_pForm; + m_pForm = NULL; + return TRUE; + } + if (pPageObj->m_Type == PDFPAGE_INLINES) { + CPDF_InlineImages *pInlines = (CPDF_InlineImages *)pPageObj; + if (pInlines->m_pStream) { + m_ImageMatrix = pInlines->m_Matrices[0]; + CPDF_DIBSource dibsrc; + if (!dibsrc.Load(pContext->m_pDocument, pInlines->m_pStream, NULL, NULL, NULL, NULL)) { + return FALSE; + } + m_pBitmap = dibsrc.Clone(); + 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_AffineMatrix* pObj2Device) +{ + CPDF_Type3Font* pType3Font = textobj->m_TextState.GetFont()->GetType3Font(); + for (int j = 0; j < m_Type3FontCache.GetSize(); j++) + if ((CPDF_Type3Font*)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_AffineMatrix text_matrix; + textobj->GetTextMatrix(&text_matrix); + CFX_AffineMatrix 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); + FXSYS_memset32(pGlyphAndPos, 0, sizeof(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 == NULL) { + continue; + } + CFX_AffineMatrix 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 == NULL) { + 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->GetDict(FX_BSTRC("Resources")); + } + if (fill_alpha == 255) { + CPDF_RenderStatus status; + status.Initialize(m_Level + 1, 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_Level + 1, 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 == NULL) { + 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_AffineMatrix 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 == NULL) { + 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; +}; +FX_FLOAT _CIDTransformToFloat(FX_BYTE ch); +CPDF_CharPosList::CPDF_CharPosList() +{ + m_pCharPos = NULL; +} +CPDF_CharPosList::~CPDF_CharPosList() +{ + if (m_pCharPos) { + 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); + FXSYS_memset32(m_pCharPos, 0, sizeof(FXTEXT_CHARPOS) * nChars); + m_nChars = 0; + CPDF_CIDFont* pCIDFont = pFont->GetCIDFont(); + FX_BOOL bVertWriting = pCIDFont && pCIDFont->IsVertWriting(); + for (int iChar = 0; iChar < nChars; iChar ++) { + FX_DWORD CharCode = nChars == 1 ? (FX_DWORD)(FX_UINTPTR)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->GetFontType() != PDFFONT_CIDFONT) { + 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 == NULL) { + 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; + } + FX_LPCBYTE pTransform = pCIDFont->GetCIDTransform(CID); + if (pTransform && !bVert) { + charpos.m_AdjustMatrix[0] = _CIDTransformToFloat(pTransform[0]); + charpos.m_AdjustMatrix[2] = _CIDTransformToFloat(pTransform[2]); + charpos.m_AdjustMatrix[1] = _CIDTransformToFloat(pTransform[1]); + charpos.m_AdjustMatrix[3] = _CIDTransformToFloat(pTransform[3]); + charpos.m_OriginX += _CIDTransformToFloat(pTransform[4]) * FontSize; + charpos.m_OriginY += _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_AffineMatrix* pText2User, const CFX_AffineMatrix* 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_AffineMatrix 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_AffineMatrix* 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, offset); + pCharCodes = (FX_DWORD*)(FX_UINTPTR)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, offset); + if (i) { + pCharPos[i - 1] = cur_pos; + } + cur_pos += pFont->GetCharWidthF(pCharCodes[i]) * font_size / 1000; + } + } + CFX_AffineMatrix matrix; + if (pMatrix) { + matrix = *pMatrix; + } + matrix.e = origin_x; + matrix.f = origin_y; + if (pFont->GetFontType() == PDFFONT_TYPE3) + ; + else 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_AffineMatrix* 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->GetFontType() & PDFFONT_CIDFONT) { + 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_AffineMatrix* pObj2Device, + CPDF_Font* pFont, FX_FLOAT font_size, + const CFX_AffineMatrix* pTextMatrix, FX_BOOL bFill, FX_BOOL bStroke) +{ + if (!bStroke) { + CPDF_PathObject path; + CPDF_TextObject* pCopy = FX_NEW CPDF_TextObject; + pCopy->Copy(textobj); + 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 == NULL) { + continue; + } + CPDF_PathObject path; + path.m_GraphState = textobj->m_GraphState; + path.m_ColorState = textobj->m_ColorState; + CFX_AffineMatrix 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); + } +} +CFX_PathData* CPDF_Font::LoadGlyphPath(FX_DWORD charcode, int dest_width) +{ + int glyph_index = GlyphFromCharCode(charcode); + if (m_Font.m_Face == NULL) { + return NULL; + } + return m_Font.LoadGlyphPath(glyph_index, dest_width); +} -- cgit v1.2.3