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comparison src/X_supp.c @ 77:a6763f080da5

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author Thinker K.F. Li <thinker@branda.to>
date Wed, 20 Aug 2008 00:32:11 +0800
parents
children 3645e29e4986
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76:8706356a61b4 77:a6763f080da5
1 #include <stdio.h>
2 #include <X11/Xlib.h>
3 #include <X11/Xutil.h>
4 #include "redraw_man.h"
5 #include "mb_timer.h"
6
7
8 /*! \brief Dispatch all events in the queue.
9 */
10 static void handle_x_event(Display *display,
11 redraw_man_t *rdman,
12 mb_tman_t *tman) {
13 XEvent evt;
14 XMotionEvent *mevt;
15 mouse_event_t mouse_event;
16 shape_t *shape;
17 subject_t *subject;
18 ob_factory_t *factory;
19 co_aix x, y;
20 int in_stroke;
21 int but;
22 int r;
23
24 while(XEventsQueued(display, QueuedAfterReading) > 0) {
25 r = XNextEvent(display, &evt);
26 if(r == -1)
27 break;
28
29 switch(evt.type) {
30 case MotionNotify:
31 mevt = (XMotionEvent *)&evt;
32 x = mevt->x;
33 y = mevt->y;
34 but = 0;
35 if(mevt->state & Button1Mask)
36 but |= MOUSE_BUT1;
37 if(mevt->state & Button2Mask)
38 but |= MOUSE_BUT2;
39 if(mevt->state & Button3Mask)
40 but |= MOUSE_BUT3;
41
42 mouse_event.event.type = EVT_MOUSE_MOVE;
43 mouse_event.x = x;
44 mouse_event.y = y;
45 mouse_event.button = but;
46
47 shape = find_shape_at_pos(rdman, x, y,
48 &in_stroke);
49 subject = sh_get_mouse_event_subject(shape);
50 factory = rdman_get_ob_factory(rdman);
51
52 subject_notify(factory, subject, (event_t *)&mouse_event);
53 break;
54
55 case Expose:
56 rdman_redraw_area(rdman, evt.xexpose.x, evt.xexpose.y,
57 evt.xexpose.width, evt.xexpose.height);
58 break;
59 }
60 }
61 rdman_redraw_changed(rdman);
62 XFlush(display);
63 }
64
65 /*! \brief Handle connection coming data and timeout of timers.
66 */
67 void X_handle_connection(Display *display,
68 redraw_man_t *rdman,
69 mb_tman_t *tman) {
70 int fd;
71 mb_timeval_t now, tmo;
72 struct timeval tv;
73 fd_set rfds;
74 int nfds;
75 int r;
76
77 fd = XConnectionNumber(display);
78 nfds = fd + 1;
79 while(1) {
80 FD_ZERO(&rfds);
81 FD_SET(fd, &rfds);
82
83 get_now(&now);
84 r = mb_tman_next_timeout(tman, &now, &tmo);
85
86 if(r == 0) {
87 tv.tv_sec = MB_TIMEVAL_SEC(&tmo);
88 tv.tv_usec = MB_TIMEVAL_USEC(&tmo);
89 r = select(nfds, &rfds, NULL, NULL, &tv);
90 } else
91 r = select(nfds, &rfds, NULL, NULL, NULL);
92
93 if(r == -1) {
94 perror("select");
95 break;
96 }
97
98 if(r == 0) {
99 get_now(&now);
100 mb_tman_handle_timeout(tman, &now);
101 rdman_redraw_changed(rdman);
102 XFlush(display);
103 } else if(FD_ISSET(fd, &rfds)){
104 handle_x_event(display, rdman, tman);
105 }
106 }
107 }