first version of the generic gui for the tracer

2016-04-11 11:18:26 +02:00
parent ee6789cdde
commit 2bb04f0105
18 changed files with 1737 additions and 1 deletions
@@ -0,0 +1,59 @@
+#include "gui.h"
+#include "gui_defs.h"
+#include "x.h"
+#include <sys/select.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+
+void gui_loop(gui *_gui)
+{
+  struct gui *g = _gui;
+  int xfd;
+  int eventfd;
+  int maxfd;
+  fd_set rd;
+
+  xfd = x_connection_fd(g->x);
+  eventfd = g->event_pipe[0];
+
+  if (eventfd > xfd) maxfd = eventfd;
+  else               maxfd = xfd;
+
+  while (1) {
+    x_flush(g->x);
+    FD_ZERO(&rd);
+    FD_SET(xfd, &rd);
+    FD_SET(eventfd, &rd);
+    if (select(maxfd+1, &rd, NULL, NULL, NULL) == -1)
+      ERR("select: %s\n", strerror(errno));
+
+    glock(g);
+
+    if (FD_ISSET(xfd, &rd))
+      x_events(g);
+
+    if (FD_ISSET(eventfd, &rd)) {
+      char c[256];
+      if (read(eventfd, c, 256)); /* for no gcc warnings */
+    }
+
+    gui_events(g);
+
+    if (g->repainted) {
+      struct widget_list *cur;
+      g->repainted = 0;
+      cur = g->toplevel;
+      while (cur) {
+        struct toplevel_window_widget *w =
+            (struct toplevel_window_widget *)cur->item;
+        x_draw(g->x, w->x);
+        cur = cur->next;
+      }
+    }
+
+    gunlock(g);
+  }
+}