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comparison font/font_face.cc @ 52:15a18fbe6f21

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* Known bugs added to the README * Code cleaning (0 -> NULL when needed, indentation, spaces, ...)
author thib
date Sat, 18 Apr 2009 18:35:39 +0000
parents fa8511a21d05
children 4416cfac86ae
comparison
equal deleted inserted replaced
51:cbb301016a4e 52:15a18fbe6f21
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */ 26 */
27 27
28 #include <stdlib.h> 28 #include <stdlib.h>
29 #include <stdio.h> 29 #include <stdio.h>
30 #include"font.h" 30 #include "font.h"
31 #include"font_peer.h" 31 #include "font_peer.h"
32 #include <map> 32 #include <map>
33 #include <string> 33 #include <string>
34 #include <iostream> 34 #include <iostream>
35 35
36 namespace XKFont { 36 namespace XKFont {
37 37
38 class Cache : public std::map<unsigned int, Glyph*> { 38 class Cache : public std::map<unsigned int, Glyph*> {
39 public: 39 public:
40 Cache() {} 40 Cache() {}
41 ~Cache() { 41 ~Cache() {
42 iterator it;
43 for (it = begin(); it != end(); it++)
44 delete (it->second);
45 }
46 };
47
48 Face::Face(const char *name_orig, int index, int hsize, int vsize)
49 {
50 cache = new Cache;
51
52 /* name: ';' 区切りで複数指定可能 */
53 char* name = new char[strlen(name_orig)+1];
54 while(*name_orig != 0) {
55 const char* next_name = strchr(name_orig, ';');
56 if (next_name) {
57 strncpy(name, name_orig, next_name - name_orig);
58 name[next_name-name_orig] = 0;
59 name_orig = next_name + 1;
60 } else {
61 strcpy(name, name_orig);
62 name_orig += strlen(name_orig);
63 }
64 if (strstr(name, "fn.dat")) {
65 peer.push_back(new PeerFn(name, index, hsize, vsize));
66 } else if (strstr(name, ".ttf") || strstr(name, ".ttc")) {
67 peer.push_back(new PeerFt2(name, index, hsize, vsize));
68 #if USE_X11
69 } else {
70 peer.push_back(new PeerX11(name, index, hsize, vsize));
71 #endif
72 }
73 }
74 delete[] name;
75 return;
76 }
77
78 Face::~Face() {
79 delete cache;
80 }
81
82 Glyph* Face::GlyphLoad(unsigned int code) {
83 if (cache->count(code))
84 return (*cache)[code];
85
86 Glyph* g = new Glyph;
42 iterator it; 87 iterator it;
43 for (it = begin(); it != end(); it++) 88 for (it=peer.begin(); it != peer.end(); it++) {
44 delete (it->second); 89 if ( (*it)->GlyphCreate(code, g)) break;
90 }
91 if (it == peer.end()) {
92 fprintf(stderr,"Cannot find glyph, code %04x\n",code);
93 g->bitmap_left = 0;
94 g->bitmap_top = 0;
95 g->bitmap.width = 0;
96 g->bitmap.rows = 0;
97 g->bitmap.buffer = new unsigned char[1];
98 g->bitmap.buffer[0] = 0;
99 g->advance.x = 0;
100 g->advance.y = 0;
101 }
102 (*cache)[code] = g;
103 return g;
45 } 104 }
46 };
47 105
48 Face::Face(const char *name_orig, int index, int hsize, int vsize) 106 class FontImpl {
49 { 107 public:
50 cache = new Cache; 108 std::map<int, Face*> cache;
109 std::string fontname;
110 int size;
111 ~FontImpl();
112 };
51 113
52 /* name: ';' 区切りで複数指定可能 */ 114 FontImpl::~FontImpl() {
53 char* name = new char[strlen(name_orig)+1]; 115 std::map<int,Face*>::iterator it;
54 while(*name_orig != 0) { 116 for (it=cache.begin(); it!=cache.end(); it++) delete it->second;
55 const char* next_name = strchr(name_orig, ';'); 117 }
56 if (next_name) { 118
57 strncpy(name, name_orig, next_name - name_orig); 119 Font::Font(const char* name, int size) {
58 name[next_name-name_orig] = 0; 120 pimpl = new FontImpl;
59 name_orig = next_name + 1; 121 pimpl->fontname = name;
60 } else { 122 pimpl->size = size;
61 strcpy(name, name_orig); 123 vsize = size;
62 name_orig += strlen(name_orig); 124 };
63 } 125
64 if (strstr(name, "fn.dat")) { 126 Font::~Font() {
65 peer.push_back(new PeerFn(name, index, hsize, vsize)); 127 delete pimpl;
66 } else if (strstr(name, ".ttf") || strstr(name, ".ttc")) { 128 }
67 peer.push_back(new PeerFt2(name, index, hsize, vsize)); 129
68 #if USE_X11 130 Face* Font::FaceLoad(double scale) {
69 } else { 131 std::map<int, Face*>& cache = pimpl->cache;
70 peer.push_back(new PeerX11(name, index, hsize, vsize)); 132 int size = int(scale * pimpl->size);
71 #endif 133 if (cache.find(size) != cache.end()) return cache[size];
134 try {
135 Face* face = new Face(pimpl->fontname.c_str(), 0, size, size);
136 cache[size] = face;
137 return face;
138 } catch(...) {
139 std::cerr << "Cannot create font face; font "<<pimpl->fontname<<", size "<<size<<std::endl;
140 /* 別の大きさを探す */
141 int i;
142 for (i=0; i<size; i++) {
143 if (cache.find(size-i) != cache.end()) return cache[size-i];
144 if (cache.find(size+i) != cache.end()) return cache[size+i];
145 try {
146 Face* face = new Face(pimpl->fontname.c_str(), 0, size-i, size-i);
147 cache[size-i] = face;
148 return face;
149 } catch(...) {};
150 try {
151 Face* face = new Face(pimpl->fontname.c_str(), 0, size+i, size+i);
152 cache[size+i] = face;
153 return face;
154 } catch(...) {};
155 }
156 /* 見つからない */
157 throw;
72 } 158 }
73 } 159 }
74 delete[] name;
75 return;
76 }
77
78 Face::~Face() {
79 delete cache;
80 }
81
82 Glyph*
83 Face::GlyphLoad(unsigned int code) {
84 if (cache->count(code))
85 return (*cache)[code];
86
87 Glyph* g = new Glyph;
88 iterator it;
89 for (it=peer.begin(); it != peer.end(); it++) {
90 if ( (*it)->GlyphCreate(code, g)) break;
91 }
92 if (it == peer.end()) {
93 fprintf(stderr,"Cannot find glyph, code %04x\n",code);
94 g->bitmap_left = 0;
95 g->bitmap_top = 0;
96 g->bitmap.width = 0;
97 g->bitmap.rows = 0;
98 g->bitmap.buffer = new unsigned char[1];
99 g->bitmap.buffer[0] = 0;
100 g->advance.x = 0;
101 g->advance.y = 0;
102 }
103 (*cache)[code] = g;
104 return g;
105 }
106
107 class FontImpl {
108 public:
109 std::map<int, Face*> cache;
110 std::string fontname;
111 int size;
112 ~FontImpl();
113 };
114
115 FontImpl::~FontImpl() {
116 std::map<int,Face*>::iterator it;
117 for (it=cache.begin(); it!=cache.end(); it++) delete it->second;
118 }
119
120 Font::Font(const char* name, int size) {
121 pimpl = new FontImpl;
122 pimpl->fontname = name;
123 pimpl->size = size;
124 vsize = size;
125 };
126 Font::~Font() {
127 delete pimpl;
128 }
129 Face*
130 Font::FaceLoad(double scale) {
131 std::map<int, Face*>& cache = pimpl->cache;
132 int size = int(scale * pimpl->size);
133 if (cache.find(size) != cache.end()) return cache[size];
134 try {
135 Face* face = new Face(pimpl->fontname.c_str(), 0, size, size);
136 cache[size] = face;
137 return face;
138 } catch(...) {
139 std::cerr << "Cannot create font face; font "<<pimpl->fontname<<", size "<<size<<std::endl;
140 /* 別の大きさを探す */
141 int i;
142 for (i=0; i<size; i++) {
143 if (cache.find(size-i) != cache.end()) return cache[size-i];
144 if (cache.find(size+i) != cache.end()) return cache[size+i];
145 try {
146 Face* face = new Face(pimpl->fontname.c_str(), 0, size-i, size-i);
147 cache[size-i] = face;
148 return face;
149 } catch(...) {};
150 try {
151 Face* face = new Face(pimpl->fontname.c_str(), 0, size+i, size+i);
152 cache[size+i] = face;
153 return face;
154 } catch(...) {};
155 }
156 /* 見つからない */
157 throw;
158 }
159 }
160 160
161 } /* namespace XKFont */ 161 } /* namespace XKFont */