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authornpm <npm@chromium.org>2016-10-25 14:26:39 -0700
committerCommit bot <commit-bot@chromium.org>2016-10-25 14:26:39 -0700
commitcfcc11e53a60b3f56a9bbe13718ecb9b997384da (patch)
tree7ac6fc6f1bf8f180769021f51c7235db21da4eb1 /core/fxge/android/cfpf_skiafont.cpp
parent4ee6139e8cfecab9e181115894b26131ad6de09a (diff)
downloadpdfium-cfcc11e53a60b3f56a9bbe13718ecb9b997384da.tar.xz
Name core/fxge/android files appropriately and use one file per class
- Rename files so that they correspond to class names. - Remove OS_Android ifs, since they are unneeded. - Split fpf_skiafontmgr.h into classes, one per file. Review-Url: https://codereview.chromium.org/2448293002
Diffstat (limited to 'core/fxge/android/cfpf_skiafont.cpp')
-rw-r--r--core/fxge/android/cfpf_skiafont.cpp219
1 files changed, 219 insertions, 0 deletions
diff --git a/core/fxge/android/cfpf_skiafont.cpp b/core/fxge/android/cfpf_skiafont.cpp
new file mode 100644
index 0000000000..c7cfd4d324
--- /dev/null
+++ b/core/fxge/android/cfpf_skiafont.cpp
@@ -0,0 +1,219 @@
+// Copyright 2016 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/fxge/android/cfpf_skiafont.h"
+
+#include <algorithm>
+
+#include "core/fxcrt/fx_system.h"
+#include "core/fxge/android/cfpf_skiabufferfont.h"
+#include "core/fxge/android/cfpf_skiafilefont.h"
+#include "core/fxge/android/cfpf_skiafontdescriptor.h"
+#include "core/fxge/android/cfpf_skiafontmgr.h"
+#include "core/fxge/android/cfpf_skiapathfont.h"
+#include "core/fxge/fx_freetype.h"
+
+#define FPF_EM_ADJUST(em, a) (em == 0 ? (a) : (a)*1000 / em)
+
+CFPF_SkiaFont::CFPF_SkiaFont()
+ : m_pFontMgr(nullptr),
+ m_pFontDes(nullptr),
+ m_Face(nullptr),
+ m_dwStyle(0),
+ m_uCharset(0),
+ m_dwRefCount(0) {}
+
+CFPF_SkiaFont::~CFPF_SkiaFont() {
+ if (m_Face)
+ FXFT_Done_Face(m_Face);
+}
+
+void CFPF_SkiaFont::Release() {
+ if (--m_dwRefCount == 0)
+ delete this;
+}
+
+CFPF_SkiaFont* CFPF_SkiaFont::Retain() {
+ m_dwRefCount++;
+ return this;
+}
+
+CFX_ByteString CFPF_SkiaFont::GetFamilyName() {
+ if (!m_Face)
+ return CFX_ByteString();
+ return CFX_ByteString(FXFT_Get_Face_Family_Name(m_Face));
+}
+
+CFX_ByteString CFPF_SkiaFont::GetPsName() {
+ if (!m_Face)
+ return CFX_ByteString();
+ return FXFT_Get_Postscript_Name(m_Face);
+}
+
+int32_t CFPF_SkiaFont::GetGlyphIndex(FX_WCHAR wUnicode) {
+ if (!m_Face)
+ return wUnicode;
+ if (FXFT_Select_Charmap(m_Face, FXFT_ENCODING_UNICODE))
+ return 0;
+ return FXFT_Get_Char_Index(m_Face, wUnicode);
+}
+
+int32_t CFPF_SkiaFont::GetGlyphWidth(int32_t iGlyphIndex) {
+ if (!m_Face)
+ return 0;
+ if (FXFT_Load_Glyph(
+ m_Face, iGlyphIndex,
+ FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH)) {
+ return 0;
+ }
+ return FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
+ FXFT_Get_Glyph_HoriAdvance(m_Face));
+}
+
+int32_t CFPF_SkiaFont::GetAscent() const {
+ if (!m_Face)
+ return 0;
+ return FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
+ FXFT_Get_Face_Ascender(m_Face));
+}
+
+int32_t CFPF_SkiaFont::GetDescent() const {
+ if (!m_Face)
+ return 0;
+ return FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
+ FXFT_Get_Face_Descender(m_Face));
+}
+
+FX_BOOL CFPF_SkiaFont::GetGlyphBBox(int32_t iGlyphIndex, FX_RECT& rtBBox) {
+ if (!m_Face)
+ return FALSE;
+ if (FXFT_Is_Face_Tricky(m_Face)) {
+ if (FXFT_Set_Char_Size(m_Face, 0, 1000 * 64, 72, 72))
+ return FALSE;
+ if (FXFT_Load_Glyph(m_Face, iGlyphIndex,
+ FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH)) {
+ FXFT_Set_Pixel_Sizes(m_Face, 0, 64);
+ return FALSE;
+ }
+ FXFT_Glyph glyph;
+ if (FXFT_Get_Glyph(m_Face->glyph, &glyph)) {
+ FXFT_Set_Pixel_Sizes(m_Face, 0, 64);
+ return FALSE;
+ }
+ FXFT_BBox cbox;
+ FXFT_Glyph_Get_CBox(glyph, FXFT_GLYPH_BBOX_PIXELS, &cbox);
+ int32_t x_ppem = m_Face->size->metrics.x_ppem;
+ int32_t y_ppem = m_Face->size->metrics.y_ppem;
+ rtBBox.left = FPF_EM_ADJUST(x_ppem, cbox.xMin);
+ rtBBox.right = FPF_EM_ADJUST(x_ppem, cbox.xMax);
+ rtBBox.top = FPF_EM_ADJUST(y_ppem, cbox.yMax);
+ rtBBox.bottom = FPF_EM_ADJUST(y_ppem, cbox.yMin);
+ rtBBox.top = std::min(rtBBox.top, GetAscent());
+ rtBBox.bottom = std::max(rtBBox.bottom, GetDescent());
+ FXFT_Done_Glyph(glyph);
+ return FXFT_Set_Pixel_Sizes(m_Face, 0, 64) == 0;
+ }
+ if (FXFT_Load_Glyph(
+ m_Face, iGlyphIndex,
+ FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH)) {
+ return FALSE;
+ }
+ rtBBox.left = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
+ FXFT_Get_Glyph_HoriBearingX(m_Face));
+ rtBBox.bottom = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
+ FXFT_Get_Glyph_HoriBearingY(m_Face));
+ rtBBox.right = FPF_EM_ADJUST(
+ FXFT_Get_Face_UnitsPerEM(m_Face),
+ FXFT_Get_Glyph_HoriBearingX(m_Face) + FXFT_Get_Glyph_Width(m_Face));
+ rtBBox.top = FPF_EM_ADJUST(
+ FXFT_Get_Face_UnitsPerEM(m_Face),
+ FXFT_Get_Glyph_HoriBearingY(m_Face) - FXFT_Get_Glyph_Height(m_Face));
+ return TRUE;
+}
+
+FX_BOOL CFPF_SkiaFont::GetBBox(FX_RECT& rtBBox) {
+ if (!m_Face) {
+ return FALSE;
+ }
+ rtBBox.left = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
+ FXFT_Get_Face_xMin(m_Face));
+ rtBBox.top = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
+ FXFT_Get_Face_yMin(m_Face));
+ rtBBox.right = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
+ FXFT_Get_Face_xMax(m_Face));
+ rtBBox.bottom = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
+ FXFT_Get_Face_yMax(m_Face));
+ return TRUE;
+}
+
+int32_t CFPF_SkiaFont::GetHeight() const {
+ if (!m_Face)
+ return 0;
+ return FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
+ FXFT_Get_Face_Height(m_Face));
+}
+
+int32_t CFPF_SkiaFont::GetItalicAngle() const {
+ if (!m_Face)
+ return 0;
+
+ TT_Postscript* ttInfo =
+ (TT_Postscript*)FT_Get_Sfnt_Table(m_Face, ft_sfnt_post);
+ if (ttInfo)
+ return ttInfo->italicAngle;
+ return 0;
+}
+
+uint32_t CFPF_SkiaFont::GetFontData(uint32_t dwTable,
+ uint8_t* pBuffer,
+ uint32_t dwSize) {
+ if (!m_Face)
+ return 0;
+
+ FT_ULong ulSize = pdfium::base::checked_cast<FT_ULong>(dwSize);
+ if (FXFT_Load_Sfnt_Table(m_Face, dwTable, 0, pBuffer, &ulSize))
+ return 0;
+ return pdfium::base::checked_cast<uint32_t>(ulSize);
+}
+
+FX_BOOL CFPF_SkiaFont::InitFont(CFPF_SkiaFontMgr* pFontMgr,
+ CFPF_SkiaFontDescriptor* pFontDes,
+ const CFX_ByteStringC& bsFamily,
+ uint32_t dwStyle,
+ uint8_t uCharset) {
+ if (!pFontMgr || !pFontDes)
+ return FALSE;
+
+ switch (pFontDes->GetType()) {
+ case FPF_SKIAFONTTYPE_Path: {
+ CFPF_SkiaPathFont* pFont = (CFPF_SkiaPathFont*)pFontDes;
+ m_Face = pFontMgr->GetFontFace(pFont->m_pPath, pFont->m_iFaceIndex);
+ break;
+ }
+ case FPF_SKIAFONTTYPE_File: {
+ CFPF_SkiaFileFont* pFont = (CFPF_SkiaFileFont*)pFontDes;
+ m_Face = pFontMgr->GetFontFace(pFont->m_pFile, pFont->m_iFaceIndex);
+ break;
+ }
+ case FPF_SKIAFONTTYPE_Buffer: {
+ CFPF_SkiaBufferFont* pFont = (CFPF_SkiaBufferFont*)pFontDes;
+ m_Face = pFontMgr->GetFontFace((const uint8_t*)pFont->m_pBuffer,
+ pFont->m_szBuffer, pFont->m_iFaceIndex);
+ break;
+ }
+ default:
+ return FALSE;
+ }
+ if (!m_Face)
+ return FALSE;
+
+ m_dwStyle = dwStyle;
+ m_uCharset = uCharset;
+ m_pFontMgr = pFontMgr;
+ m_pFontDes = pFontDes;
+ m_dwRefCount = 1;
+ return TRUE;
+}