diff options
Diffstat (limited to 'core/src/fpdfapi/fpdf_render/fpdf_render_text.cpp')
| -rw-r--r-- | core/src/fpdfapi/fpdf_render/fpdf_render_text.cpp | 760 |
1 files changed, 760 insertions, 0 deletions
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);
+}
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