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/cvs/rxvt-unicode/src/rxvtfont.h
Revision: 1.46
Committed: Thu Jun 17 19:37:28 2021 UTC (2 years, 10 months ago) by root
Content type: text/plain
Branch: MAIN
CVS Tags: rxvt-unicode-rel-9_29, rxvt-unicode-rel-9_30, HEAD
Changes since 1.45: +0 -1 lines
Log Message:
sanctified by exg

File Contents

# Content
1 #ifndef DEFAULTFONT_H_
2 #define DEFAULTFONT_H_
3
4 #include <X11/Xlib.h>
5 #if XFT
6 # include <X11/Xft/Xft.h>
7 #endif
8
9 #include <inttypes.h>
10
11 #include "encoding.h"
12 #include "rxvtutil.h"
13 #include "rxvttoolkit.h"
14
15 struct rxvt_term;
16
17 struct rxvt_fontprop
18 {
19 enum {
20 unset = -1,
21 medium = 100, bold = 200,
22 roman = 0, italic = 100,
23 };
24 int width, height, ascent;
25 int weight, slant;
26 };
27
28 struct rxvt_font
29 {
30 // managed by the fontset
31 rxvt_term *term;
32 void set_term (rxvt_term *term) { this->term = term; }
33
34 char *name;
35 codeset cs;
36 bool loaded; // whether we tried loading it before (not whether it's loaded)
37
38 // managed by the font object
39 int ascent, descent,
40 width, height;
41
42 void set_name (char *name_);
43
44 rxvt_font ();
45 virtual ~rxvt_font () { free (name); };
46
47 virtual void clear () { };
48
49 void clear_rect (rxvt_drawable &d, int x, int y, int w, int h, int color) const;
50
51 virtual rxvt_fontprop properties () = 0;
52
53 virtual bool load (const rxvt_fontprop &morph, bool force_prop) = 0;
54 virtual bool has_char (uint32_t unicode, const rxvt_fontprop *prop, bool &careful) const = 0;
55
56 virtual void draw (rxvt_drawable &d,
57 int x, int y,
58 const text_t *text, int len,
59 int fg, int bg) = 0;
60
61 void unref ()
62 {
63 clear ();
64 delete this;
65 }
66 };
67
68 struct rxvt_fallback_font;
69
70 struct rxvt_fontset
71 {
72 char *fontdesc;
73
74 // must be power-of-two - 1, also has to match RS_fontMask in rxvt.h
75 #if USE_256_COLORS
76 enum { fontCount = 7 }; // 2 extra colors bits, 2 fewer fontcount bits
77 #else
78 enum { fontCount = 31 };
79 #endif
80
81 // index of first font in set
82 enum { firstFont = 2 };
83
84 rxvt_fontset (rxvt_term *term);
85 ~rxvt_fontset ();
86
87 bool populate (const char *desc);
88 void set_prop (const rxvt_fontprop &prop, bool force_prop) { this->prop = prop; this->force_prop = force_prop; }
89 int find_font_idx (uint32_t unicode);
90 int find_font (const char *name) const;
91 bool realize_font (int i);
92
93 rxvt_font *operator [] (int id) const
94 {
95 return fonts[id >> 1];
96 }
97
98 int
99 find_font (unicode_t unicode)
100 {
101 return min<int> ((fontCount << 1) | 1, find_font_idx (unicode));
102 }
103
104 // find the font containing ' ' - we always assume this is font 1, as
105 // every font should contain space, and font 1 is our base font.
106 // pango assumes this, so it must be correct!
107 int
108 find_space_font ()
109 {
110 return 1 << 1;
111 }
112
113 private:
114 rxvt_term *term;
115 rxvt_fontprop prop;
116 bool force_prop;
117 simplevec<rxvt_font *> fonts;
118 const rxvt_fallback_font *fallback;
119
120 // this once was a "typedef xxx pagemap[256]
121 // but c++ arrays are not normal types, and cannot be
122 // put into containers, new doesn't work for them etc. etc.
123 // so we wrap out array into an object that acts like one. doh.
124 // example: C++ has no separate new and new [] forms,
125 // and if pagemap is char[256], new incorrectly assumes we want to
126 // allocate an array of chars instead of a single pagemap.
127 struct pagemap
128 {
129 unsigned char cppsucks[256];
130 unsigned char &operator [](int i) { return cppsucks [i]; };
131 };
132 vector<pagemap *> fmap;
133
134 void clear ();
135 rxvt_font *new_font (const char *name, codeset cs);
136 void prepare_font (rxvt_font *font, codeset cs);
137 void add_fonts (const char *desc);
138 void push_font (rxvt_font *font);
139 };
140
141 #endif /* _DEFAULTFONT_H_ */
142