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xsublim.c @ 20148

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Revision 20148, 22.5 KB checked in by ghudson, 21 years ago (diff)
This commit was generated by cvs2svn to compensate for changes in r20147, which included commits to RCS files with non-trunk default branches.

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1	/****************************************************************************
2	* *
3	* xsublim -- Submit. Conform. Obey. *
4	* *
5	* Copyright (c) 1999 - 2000 Greg Knauss (greg@eod.com) *
6	* *
7	* Thanks to Jamie Zawinski, whose suggestions and advice made what was a *
8	* boring little program into a less boring (and a _lot_ less little) *
9	* program. *
10	* *
11	* Permission to use, copy, modify, distribute, and sell this software and *
12	* its documentation for any purpose is hereby granted without fee, provided *
13	* that the above copyright notice appear in all copies and that both that *
14	* copyright notice and this permission notice appear in supporting *
15	* documentation. No representations are made about the suitability of this *
16	* software for any purpose. It is provided "as is" without express or *
17	* implied warranty. *
18	* *
19	* Stare into the subliminal for as long as you can... *
20	* *
21	*****************************************************************************/
22
23
24	/* Warnings *******************************************************************
25
26	Please don't end this process with a SIGKILL. If it's got the X server
27	grabbed when you do, you'll never get it back and it won't be my fault.
28	*/
29
30
31	/* Arguments ******************************************************************
32
33	-font font Font to use
34	-file filename New-line delimited phrase file
35	-program executable New-line delimited phrase-producing executable
36	-delayShow ms Microsecs for display of each word
37	-delayWord ms Microsecs for blank between words
38	-delayPhraseMin ms Microsecs for min blank between phrases
39	-delayPhraseMax ms Microsecs for max blank between phrases
40	-random Show phrases in random order (Default)
41	-no-random Show phrases in listed order
42	-screensaver Wait for an active screensaver (Default)
43	-no-screensaver Draw over active windows
44	-outline Draw a contrasting outline around words (Default)
45	-no-outline Draw words without an outline
46	-center Draw words in the center of the screen (Default)
47	-no-center Draw words randomly around the screen
48	*/
49
50
51	/* Changelog ******************************************************************
52
53	1.1.1 20000407 Added -program
54	1.1.0 19991221 Added -file
55	1.0.1 19990716 Assume that XGetImage()/XDestroyImage() don't leak,
56	which they apparently don't. I have no idea how I
57	convinced myself that they did. Huh. (greg@eod.com)
58	1.0.0 19990716 Initial release
59	*/
60
61
62	/* Defines *******************************************************************/
63	#define XSUBLIM_NAME "XSublim"
64	#define XSUBLIM_TEXT_COUNT 1000
65	#define XSUBLIM_TEXT_LENGTH 128
66	#define XSUBLIM_TEXT_OUTLINE 1
67	#define XSUBLIM_PROGRAM_SIZE 1024*10
68	#define XSUBLIM_ARG_DELAYSHOW "delayShow"
69	#define XSUBLIM_ARG_DELAYWORD "delayWord"
70	#define XSUBLIM_ARG_DELAYPHRASEMIN "delayPhraseMin"
71	#define XSUBLIM_ARG_DELAYPHRASEMAX "delayPhraseMax"
72	#define XSUBLIM_ARG_RANDOM "random"
73	#define XSUBLIM_ARG_FILE "file"
74	#define XSUBLIM_ARG_PROGRAM "program"
75	#define XSUBLIM_ARG_SCREENSAVER "screensaver"
76	#define XSUBLIM_ARG_OUTLINE "outline"
77	#define XSUBLIM_ARG_CENTER "center"
78	#define XSUBLIM_ARG_FONT "font"
79	#define XSUBLIM_ARG_PHRASES "phrases"
80	#ifndef TRUE
81	#define FALSE 0
82	#define TRUE 1
83	#endif
84
85
86	/* Includes ******************************************************************/
87	#include <stdio.h>
88	#include <stdlib.h>
89	#include <string.h>
90	#include <signal.h>
91	#include <sys/stat.h>
92	#include <X11/Intrinsic.h>
93	#include <X11/IntrinsicP.h>
94	#include <X11/CoreP.h>
95	#include <X11/Shell.h>
96	#include <X11/StringDefs.h>
97	#include <X11/Xutil.h>
98	#include <X11/keysym.h>
99	#include <X11/Xatom.h>
100	#include <X11/Xlib.h>
101	#include <X11/Xos.h>
102	#include <X11/Xproto.h>
103	#if defined(__sgi)
104	#include <X11/SGIScheme.h>
105	#endif
106
107	#include "usleep.h"
108	#include "yarandom.h"
109	#include "resources.h"
110	#include "vroot.h"
111
112
113	/* Globals *******************************************************************/
114	char* progname;
115	XtAppContext app;
116	XrmDatabase db;
117	char* progclass = XSUBLIM_NAME;
118
119	# ifdef __GNUC__
120	__extension__ /* don't warn about "string length is greater than the
121	length ISO C89 compilers are required to support"
122	in the following string constant... */
123	# endif
124
125	char* defaults[] =
126	{
127	".background: #000000",
128	".foreground: #FFFFFF",
129	"*" XSUBLIM_ARG_PHRASES ":"
130	"Submit.\\n"
131	"Conform.\\n"
132	"Obey.\\n"
133	"OBEY. OBEY. OBEY.\\n"
134	"Consume.\\n"
135	"Be silent.\\n"
136	"Fear.\\n"
137	"Waste.\\n"
138	"Money.\\n"
139	"Watch TV.\\n"
140	"Hate yourself.\\n"
141	"Buy needlessly.\\n"
142	"Despair quietly.\\n"
143	"God hates you.\\n"
144	"You are being watched.\\n"
145	"You will be punished.\\n"
146	"You serve no purpose.\\n"
147	"Your contributions are ignored.\\n"
148	"They are laughing at you.\\n"
149	"They lied to you.\\n"
150	"They read your mail.\\n"
151	"They know.\\n"
152	"Surrender.\\n"
153	"You will fail.\\n"
154	"Never question.\\n"
155	"You are a prisoner.\\n"
156	"You are helpless.\\n"
157	"You are diseased.\\n"
158	"Fear the unknown.\\n"
159	"Happiness follows obedience.\\n"
160	"Ignorance is strength.\\n"
161	"War is peace.\\n"
162	"Freedom is slavery.\\n"
163	"Abandon all hope.\\n"
164	"You will be assimilated.\\n"
165	"Resistance is futile.\\n"
166	"Resistance is useless.\\n"
167	"Life is pain.\\n"
168	"No escape.\\n"
169	"What's that smell?\\n"
170	"All praise the company.\\n"
171	"Fnord.\\n",
172	"" XSUBLIM_ARG_FONT ": --utopia--r----600---p---*",
173	"*" XSUBLIM_ARG_DELAYSHOW ": 40000",
174	"*" XSUBLIM_ARG_DELAYWORD ": 100000",
175	"*" XSUBLIM_ARG_DELAYPHRASEMIN ": 5000000",
176	"*" XSUBLIM_ARG_DELAYPHRASEMAX ": 20000000",
177	"*" XSUBLIM_ARG_RANDOM ": true",
178	"*" XSUBLIM_ARG_SCREENSAVER ": true",
179	"*" XSUBLIM_ARG_OUTLINE": true",
180	"*" XSUBLIM_ARG_CENTER": true",
181	NULL
182	};
183	XrmOptionDescRec options[] =
184	{
185	{"-" XSUBLIM_ARG_FONT, "." XSUBLIM_ARG_FONT,
186	XrmoptionSepArg,0},
187	{"-" XSUBLIM_ARG_DELAYSHOW, "." XSUBLIM_ARG_DELAYSHOW,
188	XrmoptionSepArg,0},
189	{"-" XSUBLIM_ARG_DELAYWORD, "." XSUBLIM_ARG_DELAYWORD,
190	XrmoptionSepArg,0},
191	{"-" XSUBLIM_ARG_DELAYPHRASEMIN,"." XSUBLIM_ARG_DELAYPHRASEMIN,
192	XrmoptionSepArg,0},
193	{"-" XSUBLIM_ARG_DELAYPHRASEMAX,"." XSUBLIM_ARG_DELAYPHRASEMAX,
194	XrmoptionSepArg,0},
195	{"-" XSUBLIM_ARG_RANDOM, "." XSUBLIM_ARG_RANDOM,
196	XrmoptionNoArg,"true"},
197	{"-no-" XSUBLIM_ARG_RANDOM, "." XSUBLIM_ARG_RANDOM,
198	XrmoptionNoArg,"false"},
199	{"-" XSUBLIM_ARG_FILE, "." XSUBLIM_ARG_FILE,
200	XrmoptionSepArg,0 },
201	#if !defined(VMS)
202	{"-" XSUBLIM_ARG_PROGRAM, "." XSUBLIM_ARG_PROGRAM,
203	XrmoptionSepArg,0 },
204	#endif
205	{"-" XSUBLIM_ARG_SCREENSAVER, "." XSUBLIM_ARG_SCREENSAVER,
206	XrmoptionNoArg,"true"},
207	{"-no-" XSUBLIM_ARG_SCREENSAVER,"." XSUBLIM_ARG_SCREENSAVER,
208	XrmoptionNoArg,"false"},
209	{"-" XSUBLIM_ARG_OUTLINE, "." XSUBLIM_ARG_OUTLINE,
210	XrmoptionNoArg,"true"},
211	{"-no-" XSUBLIM_ARG_OUTLINE, "." XSUBLIM_ARG_OUTLINE,
212	XrmoptionNoArg,"false"},
213	{"-" XSUBLIM_ARG_CENTER, "." XSUBLIM_ARG_CENTER,
214	XrmoptionNoArg,"true"},
215	{"-no-" XSUBLIM_ARG_CENTER, "." XSUBLIM_ARG_CENTER,
216	XrmoptionNoArg,"false"},
217	{NULL, NULL,
218	0, 0 }
219	};
220	static int Xsublim_Sig_Last;
221
222
223	/* Functions *****************************************************************/
224
225	/* Defer signals to protect the server grab ================================ */
226	void xsublim_Sig_Catch(int sig_Number)
227	{
228	/* BSD needs this reset each time, and it shouldn't hurt anything
229	else */
230	signal(sig_Number,xsublim_Sig_Catch);
231	Xsublim_Sig_Last = sig_Number;
232	}
233
234	/* This was all basically swiped from driver/remote.c and util/vroot.h */
235	static Window xsublim_Ss_GetWindow(Display* ss_Display)
236	{
237	Screen *s = DefaultScreenOfDisplay (ss_Display);
238	Window root = XRootWindowOfScreen (s);
239	Window vroot = VirtualRootWindowOfScreen (s);
240	if (root == vroot)
241	return 0;
242	else
243	return vroot;
244	}
245
246	/* Main ==================================================================== */
247	static XErrorHandler Xsublim_Sh_Handler = NULL;
248	static int Xsublim_Sh_Status = 0;
249
250	static int xsublim_Sh_Handler(Display* handle_Display,
251	XErrorEvent* handle_Error)
252	{
253	if (handle_Error->error_code == BadMatch)
254	{
255	Xsublim_Sh_Status = BadMatch;
256	return 0;
257	}
258	if (Xsublim_Sh_Handler == NULL)
259	{
260	fprintf(stderr,"%s: ",progname);
261	abort();
262	}
263	return (*Xsublim_Sh_Handler)(handle_Display,handle_Error);
264	}
265	int main(int argc,char* argv[])
266	{
267	int sig_Number;
268	int sig_Signal[] =
269	{
270	SIGHUP,
271	SIGINT,
272	SIGQUIT,
273	SIGILL,
274	SIGTRAP,
275	#if defined(SIGIOT)
276	SIGIOT,
277	#endif
278	SIGABRT,
279	#if defined(SIGEMT)
280	SIGEMT,
281	#endif
282	SIGFPE,
283	SIGBUS,
284	SIGSEGV,
285	#if defined(SIGSYS)
286	SIGSYS,
287	#endif
288	SIGTERM,
289	#if defined(SIGXCPU)
290	SIGXCPU,
291	#endif
292	#if defined(SIGXFSZ)
293	SIGXFSZ,
294	#endif
295	#if defined(SIGDANGER)
296	SIGDANGER,
297	#endif
298	-1
299	};
300	Widget app_App;
301	Display* disp_Display;
302	Window win_Root;
303	XWindowAttributes attr_Win;
304	XGCValues gc_ValFore;
305	XGCValues gc_ValBack;
306	GC gc_GcFore;
307	GC gc_GcBack;
308	XFontStruct* font_Font;
309	char* font_List[] =
310	{
311	"--character--r----600---p---",
312	"--helvetica--r----600---p---",
313	"--lucida--r----600---p---",
314	"--times--r----600---p---",
315	"----r--sans--600---p---",
316	"----r----600---m---*",
317	"--helvetica--r----240---p---",
318	"--lucida--r----240---p---",
319	"--times--r----240---p---",
320	"----r--sans--240---p---",
321	"----r----240---m---*",
322	"fixed",
323	NULL
324	};
325	int font_Index;
326	int text_Length;
327	int text_X;
328	int text_Y;
329	int text_Width;
330	int text_Height;
331	char* text_List[XSUBLIM_TEXT_COUNT];
332	int text_Used[XSUBLIM_TEXT_COUNT];
333	char text_Text[XSUBLIM_TEXT_LENGTH+1];
334	char* text_Phrase;
335	char* text_Word;
336	int text_Index;
337	int text_Item;
338	int text_Count;
339	struct
340	{
341	int outline_X;
342	int outline_Y;
343	} text_Outline[] =
344	{
345	{ -1,-1 },
346	{ 1,-1 },
347	{ -1, 1 },
348	{ 1, 1 },
349	{ 0, 0 }
350	};
351	int text_OutlineIndex;
352	XImage* image_Image = NULL;
353	int image_X = 0;
354	int image_Y = 0;
355	int image_Width = 0;
356	int image_Height = 0;
357	int arg_Count;
358	int arg_FlagCenter;
359	int arg_FlagOutline;
360	int arg_FlagScreensaver;
361	int arg_FlagRandom;
362	int arg_DelayShow;
363	int arg_DelayWord;
364	int arg_DelayPhraseMin;
365	int arg_DelayPhraseMax;
366	char* arg_Text;
367	char* arg_Source;
368
369	/* Set-up ---------------------------------------------------------- */
370
371	/* Catch signals */
372	Xsublim_Sig_Last = -1;
373	for (sig_Number = 0;sig_Signal[sig_Number] != -1;sig_Number++)
374	{
375	signal(sig_Number,xsublim_Sig_Catch);
376	}
377
378	/* Randomize -- only need to do this here because this program
379	doesn't use the `screenhack.h' or `lockmore.h' APIs. */
380	# undef ya_rand_init
381	ya_rand_init (0);
382
383	/* Handle all the X nonsense */
384	#if defined(__sgi)
385	SgiUseSchemes("none");
386	#endif
387	for (arg_Count = 0;options[arg_Count].option != NULL;arg_Count++)
388	{
389	;
390	}
391	app_App = XtAppInitialize(&app,progclass,options,arg_Count,&argc,argv,
392	defaults,0,0);
393
394	/* jwz */
395	if (argc > 1)
396	{
397	int x = 18;
398	int end = 78;
399	int i;
400	int count = (sizeof(options)/sizeof(*options))-1;
401	fprintf(stderr, "Unrecognised option: %s\n", argv[1]);
402	fprintf (stderr, "Options include: ");
403	for (i = 0; i < count; i++)
404	{
405	char *sw = options [i].option;
406	Bool argp = (options [i].argKind == XrmoptionSepArg);
407	int size = strlen (sw) + (argp ? 6 : 0) + 2;
408	if (x + size >= end)
409	{
410	fprintf (stderr, "\n\t\t ");
411	x = 18;
412	}
413	x += size;
414	fprintf (stderr, "%s", sw);
415	if (argp) fprintf (stderr, " <arg>");
416	if (i != count-1) fprintf (stderr, ", ");
417	}
418	fprintf (stderr, ".\n");
419	exit (-1);
420	}
421
422	disp_Display = XtDisplay(app_App);
423	db = XtDatabase(disp_Display);
424	XtGetApplicationNameAndClass(disp_Display,&progname,&progclass);
425	win_Root = RootWindowOfScreen(XtScreen(app_App));
426	XtDestroyWidget(app_App);
427
428	/* Get the arguments */
429	arg_FlagCenter = get_boolean_resource(XSUBLIM_ARG_CENTER,"Boolean");
430	arg_FlagOutline = get_boolean_resource(XSUBLIM_ARG_OUTLINE,"Boolean");
431	arg_FlagScreensaver = get_boolean_resource(XSUBLIM_ARG_SCREENSAVER,
432	"Boolean");
433	arg_FlagRandom = get_boolean_resource(XSUBLIM_ARG_RANDOM,"Boolean");
434	arg_DelayShow = get_integer_resource(XSUBLIM_ARG_DELAYSHOW,"Integer");
435	arg_DelayWord = get_integer_resource(XSUBLIM_ARG_DELAYWORD,"Integer");
436	arg_DelayPhraseMin = get_integer_resource(XSUBLIM_ARG_DELAYPHRASEMIN,
437	"Integer");
438	arg_DelayPhraseMax = get_integer_resource(XSUBLIM_ARG_DELAYPHRASEMAX,
439	"Integer");
440	if (arg_DelayPhraseMax < arg_DelayPhraseMin)
441	{
442	arg_DelayPhraseMax = arg_DelayPhraseMin;
443	}
444
445	/* Get the phrases */
446	text_Index = 0;
447	text_Item = 0;
448	text_Count = 0;
449	memset(text_Used,0,sizeof(text_Used));
450	arg_Source = get_string_resource(XSUBLIM_ARG_FILE,"Filename");
451	if (arg_Source != NULL)
452	{
453	FILE* file_Fs;
454	struct stat file_Stat;
455
456	file_Fs = fopen(arg_Source,"rb");
457	if (file_Fs == NULL)
458	{
459	fprintf(stderr,"%s: Could not open '%s'\n",progname,
460	arg_Source);
461	exit(-1);
462	}
463	if (fstat(fileno(file_Fs),&file_Stat) != 0)
464	{
465	fprintf(stderr,"%s: Could not stat '%s'\n",progname,
466	arg_Source);
467	exit(-1);
468	}
469	arg_Text = calloc(1,file_Stat.st_size+1);
470	if (arg_Text != NULL)
471	{
472	if (fread(arg_Text,file_Stat.st_size,1,file_Fs) != 1)
473	{
474	fprintf(stderr,"%s: Could not read '%s'\n",
475	progname,arg_Source);
476	exit(-1);
477	}
478	}
479	fclose(file_Fs);
480	}
481	else
482	{
483	arg_Source = get_string_resource(XSUBLIM_ARG_PROGRAM,
484	"Executable");
485	if (arg_Source != NULL)
486	{
487	char* exe_Command = calloc(1,strlen(arg_Source)+10);
488	FILE* exe_Fs;
489
490	if (exe_Command == NULL)
491	{
492	fprintf(stderr,
493	"%s: Could not allocate space for '%s'\n",
494	progname,arg_Source);
495	exit(-1);
496	}
497	sprintf(exe_Command,"( %s ) 2>&1",arg_Source);
498
499	exe_Fs = popen(exe_Command,"r");
500	if (exe_Fs == NULL)
501	{
502	fprintf(stderr,"%s: Could not run '%s'\n",
503	progname,arg_Source);
504	exit(-1);
505	}
506	arg_Text = calloc(1,XSUBLIM_PROGRAM_SIZE);
507	if (arg_Text != NULL)
508	{
509	if (fread(arg_Text,1,XSUBLIM_PROGRAM_SIZE,
510	exe_Fs) <= 0)
511	{
512	fprintf(stderr,
513	"%s: Could not read output of '%s'\n",
514	progname,arg_Source);
515	exit(-1);
516	}
517	if (
518	strstr(arg_Text,": not found") \|\|
519	strstr(arg_Text,": Not found") \|\|
520	strstr(arg_Text,": command not found") \|\|
521	strstr(arg_Text,": Command not found"))
522	{
523	fprintf(stderr,
524	"%s: Could not find '%s'\n",
525	progname,arg_Source);
526	exit(-1);
527	}
528	}
529	fclose(exe_Fs);
530	}
531	else
532	{
533	arg_Text =
534	get_string_resource(XSUBLIM_ARG_PHRASES,"Phrases");
535	if (arg_Text != NULL)
536	{
537	arg_Text = strdup(arg_Text);
538	}
539	}
540	}
541	if (arg_Text != NULL)
542	{
543	while (((text_Phrase = strtok(arg_Text,"\n")) != NULL) &&
544	(text_Count < XSUBLIM_TEXT_COUNT))
545	{
546	arg_Text = NULL;
547	text_List[text_Count] = text_Phrase;
548	text_Count++;
549	}
550	text_List[text_Count] = NULL;
551	}
552	if (text_Count == 0)
553	{
554	fprintf(stderr,"%s: No text to display\n",progname);
555	exit(-1);
556	}
557
558	/* Load the font */
559	font_Font = XLoadQueryFont(disp_Display,
560	get_string_resource(XSUBLIM_ARG_FONT,"Font"));
561	font_Index = 0;
562	while ((font_Font == NULL) && (font_List[font_Index] != NULL))
563	{
564	font_Font = XLoadQueryFont(disp_Display,font_List[font_Index]);
565	font_Index++;
566	}
567	if (font_Font == NULL)
568	{
569	fprintf(stderr,"%s: Couldn't load a font\n",progname);
570	exit(-1);
571	}
572
573	/* Create the GCs */
574	XGetWindowAttributes(disp_Display,win_Root,&attr_Win);
575	gc_ValFore.font = font_Font->fid;
576	gc_ValFore.foreground = get_pixel_resource("foreground","Foreground",
577	disp_Display,attr_Win.colormap);
578	gc_ValFore.background = get_pixel_resource("background","Background",
579	disp_Display,attr_Win.colormap);
580	gc_ValFore.subwindow_mode = IncludeInferiors;
581	gc_GcFore = XCreateGC(disp_Display,win_Root,
582	(GCFont\|GCForeground\|GCBackground\|GCSubwindowMode),&gc_ValFore);
583	gc_ValBack.font = font_Font->fid;
584	gc_ValBack.foreground = get_pixel_resource("background","Background",
585	disp_Display,attr_Win.colormap);
586	gc_ValBack.background = get_pixel_resource("foreground","Foreground",
587	disp_Display,attr_Win.colormap);
588	gc_ValBack.subwindow_mode = IncludeInferiors;
589	gc_GcBack = XCreateGC(disp_Display,win_Root,
590	(GCFont\|GCForeground\|GCBackground\|GCSubwindowMode),&gc_ValBack);
591
592	/* Loop ------------------------------------------------------------ */
593	while (Xsublim_Sig_Last == -1)
594	{
595	/* Once-per-phrase stuff ----------------------------------- */
596
597	/* If we're waiting for a screensaver... */
598	if (arg_FlagScreensaver != FALSE)
599	{
600	/* Find the screensaver's window */
601	win_Root = xsublim_Ss_GetWindow(disp_Display);
602	if (win_Root == 0)
603	{
604	usleep(30000000);
605	continue;
606	}
607	}
608
609	/* Pick the next phrase */
610	if (arg_FlagRandom != FALSE)
611	{
612	text_Item = random()%text_Count;
613	text_Index = 0;
614	}
615	while (text_Used[text_Item] != FALSE)
616	{
617	text_Index++;
618	text_Item++;
619	if (text_Index == text_Count)
620	{
621	text_Index = 0;
622	memset(text_Used,0,sizeof(text_Used));
623	}
624	if (text_List[text_Item] == NULL)
625	{
626	text_Item = 0;
627	}
628	}
629	text_Used[text_Item] = TRUE;
630	strncpy(text_Text,text_List[text_Item],
631	XSUBLIM_TEXT_LENGTH);
632	text_Phrase = text_Text;
633
634	/* Run through the phrase */
635	while (((text_Word = strtok(text_Phrase," \t")) != NULL) &&
636	(Xsublim_Sig_Last == -1))
637	{
638	text_Phrase = NULL;
639
640	/* Once-per-word stuff ----------------------------- */
641
642	/* Find the text's position */
643	XGetWindowAttributes(disp_Display,win_Root,&attr_Win);
644	text_Length = strlen(text_Word);
645	text_Width = XTextWidth(font_Font,text_Word,
646	text_Length)+XSUBLIM_TEXT_OUTLINE*2;
647	text_Height = font_Font->ascent+font_Font->descent+1+
648	XSUBLIM_TEXT_OUTLINE*2;
649	if (arg_FlagCenter == FALSE)
650	{
651	text_X = random()%(attr_Win.width-text_Width);
652	text_Y = random()%(attr_Win.height-
653	text_Height);
654	}
655	else
656	{
657	text_X = (attr_Win.width/2)-(text_Width/2);
658	text_Y = (attr_Win.height/2)-(text_Height/2);
659	}
660
661	/* Find the image's position (and pad it out slightly,
662	otherwise bits of letter get left behind -- are
663	there boundry issues I don't know about?) */
664	image_X = text_X-16;
665	image_Y = text_Y;
666	image_Width = text_Width+32;
667	image_Height = text_Height;
668	if (image_X < 0)
669	{
670	image_X = 0;
671	}
672	if (image_Y < 0)
673	{
674	image_Y = 0;
675	}
676	if (image_X+image_Width > attr_Win.width)
677	{
678	image_Width = attr_Win.width-image_X;
679	}
680	if (image_Y+image_Height > attr_Win.height)
681	{
682	image_Height = attr_Win.height-image_Y;
683	}
684
685	/* Influence people for our own ends --------------- */
686
687	/* Grab the server -- we can't let anybody draw over
688	us */
689	XSync(disp_Display,FALSE);
690	XGrabServer(disp_Display);
691	XSync(disp_Display,FALSE);
692
693	/* Set up an error handler that ignores BadMatches --
694	since the screensaver can take its window away at
695	any time, any call that uses it might choke */
696	Xsublim_Sh_Status = 0;
697	Xsublim_Sh_Handler =
698	XSetErrorHandler(xsublim_Sh_Handler);
699
700	/* Save the current background */
701	image_Image = XGetImage(disp_Display,win_Root,image_X,
702	image_Y,image_Width,image_Height,~0L,ZPixmap);
703
704	/* If we've successfully saved the background... */
705	if (image_Image != NULL)
706	{
707	if (Xsublim_Sh_Status == 0)
708	{
709	/* Draw the outline */
710	if (arg_FlagOutline != FALSE)
711	{
712	for (text_OutlineIndex = 0;
713	text_Outline[
714	text_OutlineIndex].outline_X
715	!= 0;text_OutlineIndex++)
716	{
717	/* Y'know, eight
718	character tabs and
719	descriptive variable
720	names become
721	annoying at some
722	point... */
723	XDrawString(
724	disp_Display,
725	win_Root,gc_GcBack,
726	text_X+text_Outline[
727	text_OutlineIndex].
728	outline_X*
729	XSUBLIM_TEXT_OUTLINE,
730	text_Y+
731	(font_Font->ascent)+
732	text_Outline[
733	text_OutlineIndex].
734	outline_Y*
735	XSUBLIM_TEXT_OUTLINE,
736	text_Word,
737	text_Length);
738	}
739	}
740
741	/* Draw the word */
742	XDrawString(disp_Display,win_Root,
743	gc_GcFore,text_X,
744	text_Y+(font_Font->ascent),text_Word,
745	text_Length);
746	}
747	if (Xsublim_Sh_Status == 0)
748	{
749	/* Wait a bit */
750	XSync(disp_Display,FALSE);
751	if (Xsublim_Sig_Last == -1)
752	{
753	usleep(arg_DelayShow);
754	}
755
756	/* Restore the background */
757	XPutImage(disp_Display,win_Root,
758	gc_GcFore,image_Image,0,0,image_X,
759	image_Y,image_Width,image_Height);
760	}
761
762	/* Free the image */
763	XDestroyImage(image_Image);
764	}
765
766	/* Restore the error handler, ungrab the server */
767	XSync(disp_Display,FALSE);
768	XSetErrorHandler(Xsublim_Sh_Handler);
769	XUngrabServer(disp_Display);
770	XSync(disp_Display,FALSE);
771
772	/* Pause between words */
773	if (Xsublim_Sig_Last == -1)
774	{
775	usleep(arg_DelayWord);
776	}
777	}
778
779	/* Pause between phrases */
780	if (Xsublim_Sig_Last == -1)
781	{
782	usleep(random()%(arg_DelayPhraseMax-
783	arg_DelayPhraseMin+1)+arg_DelayPhraseMin);
784	}
785	}
786
787	/* Exit ------------------------------------------------------------ */
788	for (sig_Number = 0;sig_Signal[sig_Number] != -1;sig_Number++)
789	{
790	signal(sig_Number,SIG_DFL);
791	}
792	kill(getpid(),Xsublim_Sig_Last);
793
794	return 0;
795	}

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source: trunk/third/xscreensaver/hacks/xsublim.c @ 20148

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