1 // Copyright 2014 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6 
7 #include "core/include/fxcrt/fx_system.h"
8 #include "core/include/fxge/fx_ge.h"
9 
10 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
11 
12 #include "apple_int.h"
13 #include "core/include/fxge/fx_freetype.h"
14 #include "core/include/fxge/fx_ge_apple.h"
15 #include "core/src/fxge/agg/include/fx_agg_driver.h"
16 #include "core/src/fxge/dib/dib_int.h"
17 #include "core/src/fxge/ge/text_int.h"
18 
InitPlatform()19 void CFX_AggDeviceDriver::InitPlatform() {
20   CQuartz2D& quartz2d =
21       ((CApplePlatform*)CFX_GEModule::Get()->GetPlatformData())->_quartz2d;
22   m_pPlatformGraphics = quartz2d.createGraphics(m_pBitmap);
23 }
DestroyPlatform()24 void CFX_AggDeviceDriver::DestroyPlatform() {
25   CQuartz2D& quartz2d =
26       ((CApplePlatform*)CFX_GEModule::Get()->GetPlatformData())->_quartz2d;
27   if (m_pPlatformGraphics) {
28     quartz2d.destroyGraphics(m_pPlatformGraphics);
29     m_pPlatformGraphics = NULL;
30   }
31 }
InitPlatform()32 void CFX_FaceCache::InitPlatform() {}
DestroyPlatform()33 void CFX_FaceCache::DestroyPlatform() {}
RenderGlyph_Nativetext(CFX_Font * pFont,FX_DWORD glyph_index,const CFX_Matrix * pMatrix,int dest_width,int anti_alias)34 CFX_GlyphBitmap* CFX_FaceCache::RenderGlyph_Nativetext(
35     CFX_Font* pFont,
36     FX_DWORD glyph_index,
37     const CFX_Matrix* pMatrix,
38     int dest_width,
39     int anti_alias) {
40   return NULL;
41 }
_CGDrawGlyphRun(CGContextRef pContext,int nChars,const FXTEXT_CHARPOS * pCharPos,CFX_Font * pFont,CFX_FontCache * pCache,const CFX_Matrix * pObject2Device,FX_FLOAT font_size,FX_DWORD argb,int alpha_flag,void * pIccTransform)42 static FX_BOOL _CGDrawGlyphRun(CGContextRef pContext,
43                                int nChars,
44                                const FXTEXT_CHARPOS* pCharPos,
45                                CFX_Font* pFont,
46                                CFX_FontCache* pCache,
47                                const CFX_Matrix* pObject2Device,
48                                FX_FLOAT font_size,
49                                FX_DWORD argb,
50                                int alpha_flag,
51                                void* pIccTransform) {
52   if (nChars == 0) {
53     return TRUE;
54   }
55   CFX_Matrix new_matrix;
56   FX_BOOL bNegSize = font_size < 0;
57   if (bNegSize) {
58     font_size = -font_size;
59   }
60   FX_FLOAT ori_x = pCharPos[0].m_OriginX, ori_y = pCharPos[0].m_OriginY;
61   new_matrix.Transform(ori_x, ori_y);
62   if (pObject2Device) {
63     new_matrix.Concat(*pObject2Device);
64   }
65   CQuartz2D& quartz2d =
66       ((CApplePlatform*)CFX_GEModule::Get()->GetPlatformData())->_quartz2d;
67   if (!pFont->GetPlatformFont()) {
68     if (pFont->GetPsName() == CFX_WideString::FromLocal("DFHeiStd-W5")) {
69       return FALSE;
70     }
71     pFont->SetPlatformFont(
72         quartz2d.CreateFont(pFont->GetFontData(), pFont->GetSize()));
73     if (!pFont->GetPlatformFont()) {
74       return FALSE;
75     }
76   }
77   CFX_FixedBufGrow<FX_WORD, 32> glyph_indices(nChars);
78   CFX_FixedBufGrow<CGPoint, 32> glyph_positions(nChars);
79   for (int i = 0; i < nChars; i++) {
80     glyph_indices[i] = pCharPos[i].m_ExtGID;
81     if (bNegSize) {
82       glyph_positions[i].x = -pCharPos[i].m_OriginX;
83     } else {
84       glyph_positions[i].x = pCharPos[i].m_OriginX;
85     }
86     glyph_positions[i].y = pCharPos[i].m_OriginY;
87   }
88   if (bNegSize) {
89     new_matrix.a = -new_matrix.a;
90   } else {
91     new_matrix.b = -new_matrix.b;
92     new_matrix.d = -new_matrix.d;
93   }
94   quartz2d.setGraphicsTextMatrix(pContext, &new_matrix);
95   return quartz2d.drawGraphicsString(pContext, pFont->GetPlatformFont(),
96                                      font_size, glyph_indices, glyph_positions,
97                                      nChars, argb, NULL);
98 }
_DoNothing(void * info,const void * data,size_t size)99 static void _DoNothing(void* info, const void* data, size_t size) {}
DrawDeviceText(int nChars,const FXTEXT_CHARPOS * pCharPos,CFX_Font * pFont,CFX_FontCache * pCache,const CFX_Matrix * pObject2Device,FX_FLOAT font_size,FX_DWORD argb,int alpha_flag,void * pIccTransform)100 FX_BOOL CFX_AggDeviceDriver::DrawDeviceText(int nChars,
101                                             const FXTEXT_CHARPOS* pCharPos,
102                                             CFX_Font* pFont,
103                                             CFX_FontCache* pCache,
104                                             const CFX_Matrix* pObject2Device,
105                                             FX_FLOAT font_size,
106                                             FX_DWORD argb,
107                                             int alpha_flag,
108                                             void* pIccTransform) {
109   if (!pFont) {
110     return FALSE;
111   }
112   FX_BOOL bBold = pFont->IsBold();
113   if (!bBold && pFont->GetSubstFont() &&
114       pFont->GetSubstFont()->m_Weight >= 500 &&
115       pFont->GetSubstFont()->m_Weight <= 600) {
116     return FALSE;
117   }
118   for (int i = 0; i < nChars; i++) {
119     if (pCharPos[i].m_bGlyphAdjust) {
120       return FALSE;
121     }
122   }
123   CGContextRef ctx = CGContextRef(m_pPlatformGraphics);
124   if (NULL == ctx) {
125     return FALSE;
126   }
127   CGContextSaveGState(ctx);
128   CGContextSetTextDrawingMode(ctx, kCGTextFillClip);
129   CGRect rect_cg;
130   CGImageRef pImageCG = NULL;
131   if (m_pClipRgn) {
132     rect_cg =
133         CGRectMake(m_pClipRgn->GetBox().left, m_pClipRgn->GetBox().top,
134                    m_pClipRgn->GetBox().Width(), m_pClipRgn->GetBox().Height());
135     const CFX_DIBitmap* pClipMask = m_pClipRgn->GetMask();
136     if (pClipMask) {
137       CGDataProviderRef pClipMaskDataProvider = CGDataProviderCreateWithData(
138           NULL, pClipMask->GetBuffer(),
139           pClipMask->GetPitch() * pClipMask->GetHeight(), _DoNothing);
140       CGFloat decode_f[2] = {255.f, 0.f};
141       pImageCG = CGImageMaskCreate(
142           pClipMask->GetWidth(), pClipMask->GetHeight(), 8, 8,
143           pClipMask->GetPitch(), pClipMaskDataProvider, decode_f, FALSE);
144       CGDataProviderRelease(pClipMaskDataProvider);
145     }
146   } else {
147     rect_cg = CGRectMake(0, 0, m_pBitmap->GetWidth(), m_pBitmap->GetHeight());
148   }
149   rect_cg = CGContextConvertRectToDeviceSpace(ctx, rect_cg);
150   if (pImageCG) {
151     CGContextClipToMask(ctx, rect_cg, pImageCG);
152   } else {
153     CGContextClipToRect(ctx, rect_cg);
154   }
155   FX_BOOL ret =
156       _CGDrawGlyphRun(ctx, nChars, pCharPos, pFont, pCache, pObject2Device,
157                       font_size, argb, alpha_flag, pIccTransform);
158   if (pImageCG) {
159     CGImageRelease(pImageCG);
160   }
161   CGContextRestoreGState(ctx);
162   return ret;
163 }
ReleasePlatformResource()164 void CFX_Font::ReleasePlatformResource() {
165   if (m_pPlatformFont) {
166     CQuartz2D& quartz2d =
167         ((CApplePlatform*)CFX_GEModule::Get()->GetPlatformData())->_quartz2d;
168     quartz2d.DestroyFont(m_pPlatformFont);
169     m_pPlatformFont = NULL;
170   }
171 }
172 
173 #endif  // _FXM_PLATFORM_  == _FXM_PLATFORM_APPLE_
174