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1.1 root 1: #include <X/mit-copyright.h>
2:
3: /* Copyright 1985, Massachusetts Institute of Technology */
4: #ifndef lint
5: static char *rcsid_xfd_c = "$Header: xfd.c,v 10.8 86/02/01 15:58:54 tony Rel $";
6: #endif
7:
8: #include <X/Xlib.h>
9: #include <stdio.h>
10: #include <strings.h>
11:
12: short gray_bits[16] = {
13: 0xaaaa, 0x5555, 0xaaaa, 0x5555,
14: 0xaaaa, 0x5555, 0xaaaa, 0x5555,
15: 0xaaaa, 0x5555, 0xaaaa, 0x5555,
16: 0xaaaa, 0x5555, 0xaaaa, 0x5555};
17:
18:
19: char chars[9];
20: int last_line;
21:
22: main(argc, argv)
23: int argc;
24: char **argv;
25: {
26: Window w;
27: FontInfo *fontInfo;
28: int width;
29: char *fontname = "vtsingle";
30: register char *option;
31: char *border_color;
32: char *back_color;
33: char *fore_color;
34: int border_width;
35: int reverse = 0;
36: char *geometry; /* user supplied geometry spec */
37: char def[32]; /* default size */
38: int defwidth;
39: int defheight;
40: char display[128];
41: register int i;
42: OpaqueFrame window; /* frame for the window */
43: Pixmap border_pixmap;
44: int background; /* color of background */
45: int foreground; /* color of graph */
46: int highlight; /* color of text, scale */
47: Color cdef;
48:
49: if ((option = XGetDefault(argv[0],"ReverseVideo")) != NULL )
50: if (strcmp (option, "on") == 0)
51: reverse = 1;
52: if ((option = XGetDefault(argv[0],"BorderWidth")) != NULL)
53: border_width = atoi(option);
54: if ((border_color = XGetDefault(argv[0],"Border")) == NULL)
55: border_color = XGetDefault(argv[0],"BorderColor");
56: back_color = XGetDefault(argv[0],"Background");
57: fore_color = XGetDefault(argv[0],"Foreground");
58: display[0] = '\0';
59:
60: for (i = 1; i < argc; i++) { /* Parse line */
61: if (argv[i][0] == '=') {
62: geometry = argv[i];
63: continue;
64: }
65: if (index(argv[i], ':') != NULL) { /* host:display */
66: (void)strncpy(display, argv[i], sizeof(display));
67: continue;
68: }
69: if (strcmp(argv[i], "-rv") == 0 ||
70: strcmp(argv[i], "-reverse") == 0) { /* black on white */
71: reverse = 1;
72: continue;
73: }
74: if (strcmp(argv[i], "-fw") == 0 ||
75: strcmp(argv[i], "-forward") == 0) { /* white on black */
76: reverse = 0;
77: continue;
78: }
79: if (strcmp(argv[i], "-bw") == 0 ||
80: strcmp(argv[i], "-border") == 0) { /* border width */
81: if (++i >= argc) usage(argv[0]);
82: border_width = atoi(argv[i]);
83: continue;
84: }
85: if (strcmp(argv[i], "-bd") == 0 ||
86: strcmp(argv[i], "-color") == 0) { /* border color */
87: if (++i >= argc) usage(argv[0]);
88: border_color = argv[i];
89: continue;
90: }
91: if (strcmp(argv[i], "-fg") == 0 ||
92: strcmp(argv[i], "-foreground") == 0) { /* foreground color */
93: if (++i >= argc) usage(argv[0]);
94: fore_color = argv[i];
95: continue;
96: }
97: if (strcmp(argv[i], "-bg") == 0 ||
98: strcmp(argv[i], "-background") == 0) { /* background color */
99: if (++i >= argc) usage(argv[0]);
100: back_color = argv[i];
101: continue;
102: }
103: if (argv[i][0] == '-') usage (argv[0]);
104: fontname = argv[i];
105: }
106: if (!XOpenDisplay(display)) {
107: fprintf (stderr, "%s: Could not open display %s!\n", argv[0], display);
108: exit(1);
109: }
110: if (!(fontInfo = XOpenFont (fontname))) {
111: fprintf (stderr, "%s: Could not open font %s!\n", argv[0], fontname);
112: exit(1);
113: }
114: last_line = (unsigned char)(fontInfo->lastchar)/8;
115: width = ComputeWidth (fontInfo);
116:
117: if (border_color && DisplayCells() > 2 &&
118: XParseColor(border_color, &cdef) && XGetHardwareColor(&cdef))
119: border_pixmap = XMakeTile(cdef.pixel);
120: else if (border_color && strcmp(border_color, "black") == 0)
121: border_pixmap = BlackPixmap;
122: else if (border_color && strcmp(border_color, "white") == 0)
123: border_pixmap = WhitePixmap;
124: else
125: border_pixmap = XMakePixmap (XStoreBitmap (16, 16, gray_bits),
126: BlackPixel, WhitePixel);
127:
128: if (back_color && DisplayCells() > 2 &&
129: XParseColor(back_color, &cdef) && XGetHardwareColor(&cdef)) {
130: background = cdef.pixel;
131: } else if (back_color && strcmp(back_color, "white") == 0) {
132: background = WhitePixel;
133: reverse = 0;
134: } else if (back_color && strcmp(back_color, "black") == 0) {
135: background = BlackPixel;
136: reverse = 0;
137: } else
138: background = BlackPixel;
139:
140: if (fore_color && DisplayCells() > 2 &&
141: XParseColor(fore_color, &cdef) && XGetHardwareColor(&cdef)) {
142: foreground = cdef.pixel;
143: } else if (fore_color && strcmp(fore_color, "black") == 0) {
144: foreground = BlackPixel;
145: reverse = 0;
146: } else if (fore_color && strcmp(fore_color, "white") == 0) {
147: foreground = WhitePixel;
148: reverse = 0;
149: } else
150: foreground = WhitePixel;
151:
152: if (reverse) {
153: highlight = background;
154: background = foreground;
155: foreground = highlight;
156: }
157:
158: window.bdrwidth = border_width;
159: window.border = border_pixmap;
160: window.background = XMakeTile(background);
161:
162: defwidth = width + 10;
163: defheight = fontInfo->height * (last_line + 1) + 10;
164: (void) sprintf(def, "=%dx%d+300+300", defwidth, defheight);
165: w = XCreate ("Font Display", argv[0], geometry, def, &window,
166: defwidth, defheight);
167:
168: if (!w) {
169: fprintf (stderr, "XCreateWindow failed\n");
170: exit(1);
171: }
172: XSelectInput (w, ExposeWindow | ButtonPressed);
173: XMapWindow (w);
174: while (1) {
175: XEvent event;
176: int i, j;
177: XWindowEvent (w, ExposeWindow | ButtonPressed, &event);
178: if(event.type == ButtonPressed) exit(0);
179: for (i=0;i<=last_line;i++) {
180: for (j=0;j<8;j++)
181: chars[j] = (char)((8*i)+j);
182: XText (w, 5, 5+(i*fontInfo->height), chars, 8,
183: fontInfo->id, foreground, background);
184: }
185: }
186: }
187:
188: usage (program)
189: char *program;
190: {
191: fprintf(stderr,
192: "usage: %s [host:display] [=geom] [-fw] [-rv] [-bw] [-bd] [-fg] [-bg] fontname\n", program);
193: exit(1);
194: }
195:
196: ComputeWidth (fontInfo)
197: FontInfo *fontInfo;
198: {
199: int maxwidth, i, j;
200:
201: /* Horrible hack needed for first line because line starts
202: with \0, and XStringWidth considers \0 to terminate string */
203: for (j=1;j<8;j++)
204: chars[j] = j;
205: maxwidth = XStringWidth (&chars[1], fontInfo, 0, 0);
206: /* add the width of the '\0' character, if it has one */
207: if (fontInfo->firstchar == '\0')
208: maxwidth += (fontInfo->fixedwidth ?
209: fontInfo->width : fontInfo->widths[0]);
210:
211: /* now measure the width of remaining lines */
212: for (i=1;i<=last_line;i++) {
213: int this_width;
214: for (j=0;j<8;j++)
215: chars[j] = (char)((8*i)+j);
216: this_width = XStringWidth (chars, fontInfo, 0, 0);
217: if (this_width > maxwidth)
218: maxwidth = this_width;
219: }
220: return (maxwidth);
221: }
222:
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