]> git.lizzy.rs Git - plan9front.git/blob - sys/src/cmd/proof/screen.c
fix ref822 again: remove uniqarray(), fix case with many entries in 'n'.
[plan9front.git] / sys / src / cmd / proof / screen.c
1 #include <u.h>
2 #include <libc.h>
3 #include <draw.h>
4 #include <cursor.h>
5 #include <event.h>
6 #include <bio.h>
7 #include "proof.h"
8
9 static  int     checkmouse(void);
10 static  int     buttondown(void);
11 static  char    *getmousestr(void);
12 static  char    *getkbdstr(int);
13
14 extern  Cursor  blot;
15 extern  char    *track;
16
17 Mouse   mouse;
18
19 void
20 mapscreen(void)
21 {
22         if(initdraw(0, 0, "proof") < 0){
23                 fprint(2, "proof: initdraw failed: %r\n");
24                 exits("initdraw");
25         }
26         einit(Ekeyboard|Emouse);
27 }
28
29 void
30 clearscreen(void)
31 {
32         draw(screen, screen->r, display->black, nil, ZP);
33 }
34
35 void
36 screenprint(char *fmt, ...)
37 {
38         char buf[100];
39         Point p;
40         va_list args;
41
42         va_start(args, fmt);
43         vseprint(buf, &buf[sizeof buf], fmt, args);
44         va_end(args);
45         p = Pt(screen->clipr.min.x+40, screen->clipr.max.y-40);
46         string(screen, p, display->black, ZP, font, buf);
47 }
48
49 #define Viewkey 0xb2
50
51 char *
52 getcmdstr(void)
53 {
54         Event ev;
55         int e;
56         static ulong timekey = 0;
57         ulong tracktm = 0;
58         Dir *dir;
59
60         if(track){
61                 if(timekey == 0)
62                         timekey = etimer(0, 5000);
63                 dir = dirstat(track);
64                 if(dir != nil){
65                         tracktm = dir->mtime;
66                         free(dir);
67                 }
68         }
69         for (;;) {
70                 e = event(&ev);
71                 if(resized){
72                         resized = 0;
73                         return "p";
74                 }
75                 if ((e & Emouse) && ev.mouse.buttons) {
76                         mouse = ev.mouse;
77                         return getmousestr();
78                 } else if (e & Ekeyboard)
79                         return getkbdstr(ev.kbdc);      /* sadly, no way to unget */
80                 else if (e & timekey) {
81                         if((dir = dirstat(track)) != nil){
82                                 if(tracktm < dir->mtime){
83                                         free(dir);
84                                         return "q";
85                                 }
86                                 free(dir);
87                         }
88                 }
89         }
90 }
91
92 static char *
93 getkbdstr(int c0)
94 {
95         static char buf[100];
96         char *p;
97         int c;
98
99         if (c0 == '\n')
100                 return "";
101         buf[0] = c0;
102         buf[1] = 0;
103         screenprint("%s", buf);
104         for (p = buf+1; (c = ekbd()) != '\n' && c != '\r' && c != -1 && c != Viewkey; ) {
105                 if (c == '\b' && p > buf) {
106                         *--p = ' ';
107                 } else {
108                         *p++ = c;
109                         *p = 0;
110                 }
111                 screenprint("%s", buf);
112         }
113         *p = 0;
114         return buf;
115 }
116
117
118 #define button3(b)      ((b) & 4)
119 #define button2(b)      ((b) & 2)
120 #define button1(b)      ((b) & 1)
121 #define button23(b)     ((b) & 6)
122 #define button123(b)    ((b) & 7)
123
124 #define butcvt(b)       (1 << ((b) - 1))
125
126 int waitdown(void)      /* wait until some button is down */
127 {
128         while (!(mouse.buttons & 7))
129                 mouse = emouse();
130         return mouse.buttons & 7;
131 }
132
133 int waitup(void)
134 {
135         while (mouse.buttons & 7)
136                 mouse = emouse();
137         return mouse.buttons & 7;
138 }
139
140 char *m3[]      = { "next", "prev", "page n", "again", "bigger", "smaller", "pan", "quit?", 0 };
141 char *m2[]      = { 0 };
142
143 enum { Next = 0, Prev, Page, Again, Bigger, Smaller, Pan, Quit };
144
145 Menu    mbut3   = { m3, 0, 0 };
146 Menu    mbut2   = { m2, 0, 0 };
147
148 int     last_hit;
149 int     last_but;
150
151 char *pan(void)
152 {
153         Point dd, xy, lastxy, min, max;
154
155         esetcursor(&blot);
156         waitdown();
157         xy = mouse.xy;
158         do{
159                 lastxy = mouse.xy;
160                 mouse = emouse();
161                 dd = subpt(mouse.xy, lastxy);
162                 min = addpt(screen->clipr.min, dd);
163                 max = addpt(screen->clipr.max, dd);
164                 draw(screen, rectaddpt(screen->r, subpt(mouse.xy, lastxy)),
165                         screen, nil, screen->r.min);
166                 if(mouse.xy.x < lastxy.x)       /* moved left, clear right */
167                         draw(screen, Rect(max.x, screen->r.min.y, screen->r.max.x, screen->r.max.y),
168                                 display->white, nil, ZP);
169                 else    /* moved right, clear left*/
170                         draw(screen, Rect(screen->r.min.x, screen->r.min.y, min.x, screen->r.max.y),
171                                 display->white, nil, ZP);
172                 if(mouse.xy.y < lastxy.y)       /* moved up, clear down */
173                         draw(screen, Rect(screen->r.min.x, max.y, screen->r.max.x, screen->r.max.y),
174                                 display->white, nil, ZP);
175                 else            /* moved down, clear up */
176                         draw(screen, Rect(screen->r.min.x, screen->r.min.y, screen->r.max.x, min.y),
177                                 display->white, nil, ZP);
178                 flushimage(display, 1);
179         }while(mouse.buttons);
180
181         xyoffset = addpt(xyoffset, subpt(mouse.xy, xy));
182
183         esetcursor(0);
184         return "p";
185 }
186
187 static char *
188 getmousestr(void)
189 {
190         static char buf[64];
191
192         checkmouse();
193         if (last_but == 1)
194                 return "p";     /* repaint after panning */
195         if (last_but == 2) {
196                 return "c";
197         } else if (last_but == 3) {
198                 switch (last_hit) {
199                 case Next:
200                         return "";
201                 case Prev:
202                         return "-1";
203                 case Page:
204                         screenprint("page? ");
205                         return "c";
206                 case Again:
207                         return "p";
208                 case Bigger:
209                         snprint(buf, sizeof buf, "m%g", mag * 1.1);
210                         return buf;
211                 case Smaller:
212                         snprint(buf, sizeof buf, "m%g", mag / 1.1);
213                         return buf;
214                 case Pan:
215                         return pan();
216                 case Quit:
217                         return "q";
218                 default:
219                         return "c";
220                 }
221         } else {                /* button 1 or bail out */
222                 return "c";
223         }
224 }
225
226 static int
227 checkmouse(void)        /* return button touched if any */
228 {
229         int c, b;
230         char *p;
231         extern int confirm(int);
232
233         b = waitdown();
234         last_but = 0;
235         last_hit = -1;
236         c = 0;
237         if (button3(b)) {
238                 last_hit = emenuhit(3, &mouse, &mbut3);
239                 last_but = 3;
240         } else if (button2(b)) {
241                 last_hit = emenuhit(2, &mouse, &mbut2);
242                 last_but = 2;
243         } else {                /* button1() */
244                 pan();
245                 last_but = 1;
246         }
247         waitup();
248         if (last_but == 3 && last_hit >= 0) {
249                 p = m3[last_hit];
250                 c = p[strlen(p) - 1];
251         }
252         if (c == '?' && !confirm(last_but))
253                 last_hit = -1;
254         return last_but;
255 }
256
257 Cursor deadmouse = {
258         { 0, 0},        /* offset */
259         { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
260           0x00, 0x00, 0x00, 0x0C, 0x00, 0x82, 0x04, 0x41,
261           0xFF, 0xE1, 0x5F, 0xF1, 0x3F, 0xFE, 0x17, 0xF0,
262           0x03, 0xE0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
263         { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
264           0x00, 0x00, 0x00, 0x0C, 0x00, 0x82, 0x04, 0x41,
265           0xFF, 0xE1, 0x5F, 0xF1, 0x3F, 0xFE, 0x17, 0xF0,
266           0x03, 0xE0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }
267 };
268
269 Cursor blot ={
270         { 0, 0 },
271         { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
272           0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
273           0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
274           0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, },
275         { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
276           0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
277           0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
278           0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, }
279 };
280
281 Cursor skull ={
282         { 0, 0 },
283         { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x03,
284           0xE7, 0xE7, 0x3F, 0xFC, 0x0F, 0xF0, 0x0D, 0xB0,
285           0x07, 0xE0, 0x06, 0x60, 0x37, 0xEC, 0xE4, 0x27,
286           0xC3, 0xC3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
287         { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x03,
288           0xE7, 0xE7, 0x3F, 0xFC, 0x0F, 0xF0, 0x0D, 0xB0,
289           0x07, 0xE0, 0x06, 0x60, 0x37, 0xEC, 0xE4, 0x27,
290           0xC3, 0xC3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }
291 };
292
293 confirm(int but)        /* ask for confirmation if menu item ends with '?' */
294 {
295         int c;
296         static int but_cvt[8] = { 0, 1, 2, 0, 3, 0, 0, 0 };
297
298         esetcursor(&skull);
299         c = waitdown();
300         waitup();
301         esetcursor(0);
302         return but == but_cvt[c];
303 }