1 files changed, 118 insertions, 0 deletions
diff --git a/src/screen.c b/src/screen.c
new file mode 100644
index 0000000..aa7b1df
--- /dev/null
+++ b/src/screen.c
@@ -0,0 +1,118 @@
+/* Copyright (C) 2000-2003 Shawn Betts
+ *
+ * This file is part of ratpoison.
+ *
+ * ratpoison is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ * 
+ * ratpoison is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this software; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307 USA
+ */
+
+#include "ratpoison.h"
+
+int
+screen_width (screen_info *s)
+{
+  return DisplayWidth (dpy, s->screen_num) - defaults.padding_right - defaults.padding_left;
+}
+
+int
+screen_height (screen_info *s)
+{
+  return DisplayHeight (dpy, s->screen_num) - defaults.padding_bottom - defaults.padding_top;
+}
+
+int
+screen_left (screen_info *s)
+{
+  return defaults.padding_left;
+}
+
+int
+screen_right (screen_info *s)
+{
+  return screen_left (s) + screen_width (s);
+}
+
+int
+screen_top (screen_info *s)
+{
+  return defaults.padding_top;
+}
+
+int
+screen_bottom (screen_info *s)
+{
+  return screen_top (s) + screen_height (s);
+}
+
+/* Returns a pointer to a list of frames. */
+struct list_head *
+screen_copy_frameset (screen_info *s)
+{
+  struct list_head *head;
+  rp_window_frame *cur;
+
+  /* Init our new list. */
+  head = xmalloc (sizeof (struct list_head));
+  INIT_LIST_HEAD (head);
+
+  /* Copy each frame to our new list. */
+  list_for_each_entry (cur, &s->rp_window_frames, node)
+    {
+      list_add_tail (&(frame_copy (cur))->node, head);
+    }
+
+  return head;
+}
+
+/* Set head as the frameset, deleting the existing one. */
+void
+screen_restore_frameset (screen_info *s, struct list_head *head)
+{
+  frameset_free (&s->rp_window_frames);
+  INIT_LIST_HEAD (&s->rp_window_frames);
+
+  /* Hook in our new frameset. */
+  list_splice (head, &s->rp_window_frames);
+}
+
+/* Given a list of frames, free them, but don't remove their numbers
+   from the numset. */
+void
+frameset_free (struct list_head *head)
+{
+  rp_window_frame *frame;
+  struct list_head *iter, *tmp;
+
+  list_for_each_safe_entry (frame, iter, tmp, head, node)
+    {
+      /* FIXME: what if rp_window_frames has memory inside its struct
+	 that needs to be freed? */
+      free (frame);
+    }
+}
+
+rp_window_frame *
+screen_get_frame (screen_info *s, int frame_num)
+{
+  rp_window_frame *cur;
+
+  list_for_each_entry (cur, &s->rp_window_frames, node)
+    {
+      if (cur->number == frame_num)
+	return cur;
+    }
+  
+  return NULL;
+}