roadmap-commit Mailing List for RoadMap (Page 5)

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Revision: 2904
          http://sourceforge.net/p/roadmap/code/2904
Author:   pgf
Date:     2015-06-30 15:00:30 +0000 (Tue, 30 Jun 2015)
Log Message:
-----------
add support for binding to "all arrows pressed", for OLPC XO game button

Modified Paths:
--------------
    trunk/roadmap/src/gtk2/roadmap_main.c
    trunk/roadmap/src/roadmap_start.c

Modified: trunk/roadmap/src/gtk2/roadmap_main.c
===================================================================

--- trunk/roadmap/src/gtk2/roadmap_main.c	2015-06-29 22:02:49 UTC (rev 2903)
+++ trunk/roadmap/src/gtk2/roadmap_main.c	2015-06-30 15:00:30 UTC (rev 2904)
@@ -153,14 +153,72 @@
 }
 
 
+static char *arrows[] = {
+    "Special-LeftArrow",
+    "Special-RightArrow",
+    "Special-UpArrow",
+    "Special-DownArrow"
+};
+static int arrows_down, keybits, first_key, numkeys;
+
+static void arrow_keys_timeout(void) {
+
+   char *newkey;
+
+   roadmap_main_remove_periodic(arrow_keys_timeout);
+   if (!keybits) return;
+
+   if (keybits == 15) {
+	newkey = "Special-All-Arrows";
+   } else if (numkeys >= 1) {  /* use the first pressed */
+	newkey = arrows[first_key];
+   } else {
+	arrows_down = first_key = keybits = numkeys = 0;
+	return;
+   }
+   if (newkey != NULL && RoadMapMainInput != NULL) {
+      (*RoadMapMainInput) (newkey);
+   }
+   arrows_down = first_key = keybits = numkeys = 0;
+}
+
+
+/* the OLPC XO has a game-key button that produces arrow events.  it
+ * can produce more than one event at a time.  this code lets us
+ * define more more unique key event:  all arrows down at once.
+ * otherwise, the KP_<arrow> keys simply map to "Special-<arrow>".
+ */
+static void special_keypad_arrow_treatment(int keyval)
+{
+    int key;
+
+    switch (keyval) {
+      case GDK_KP_Left:      key = 0;	break;
+      case GDK_KP_Right:     key = 1;	break;
+      case GDK_KP_Up:        key = 2;	break;
+      case GDK_KP_Down:      key = 3;	break;
+    }
+
+    /* don't count the same arrow twice */
+    if ((keybits & (1<<key)) == 0)
+	numkeys++;
+
+    /* first arrow key down starts the timer */
+    if (!arrows_down) {
+	first_key = key;
+	roadmap_main_set_periodic (100, arrow_keys_timeout);
+	arrows_down = 1;
+    }
+
+    /* keep track of what's down */
+    keybits |= (1 << key);
+}
+
 static gint roadmap_main_key_pressed (GtkWidget *w, GdkEventKey *event) {
 
    char *key = NULL;
    char regular_key[2];
 
-   // fprintf(stderr, "got 0x%x\n", event->keyval);
-
-
    switch (event->keyval) {
 
       case GDK_Left:   key = "LeftArrow";           break;
@@ -181,11 +239,14 @@
       case GDK_KP_Page_Down: key = "Special-PageDown";     break; // square
       case GDK_KP_Home:      key = "Special-Home";         break; // X
       case GDK_KP_End:       key = "Special-End";          break; // checkmark
-      case GDK_KP_Left:      key = "Special-LeftArrow";    break; // joy left
-      case GDK_KP_Right:     key = "Special-RightArrow";   break; // joy right
-      case GDK_KP_Up:        key = "Special-UpArrow";      break; // joy up
-      case GDK_KP_Down:      key = "Special-DownArrow";    break; // joy down
 
+      case GDK_KP_Left:
+      case GDK_KP_Right:
+      case GDK_KP_Up:
+      case GDK_KP_Down:
+	    special_keypad_arrow_treatment(event->keyval);
+	    return TRUE;
+
       case 0xffbe:     key = "F1";          break;
       case 0xffbf:     key = "F2";          break;
       case 0xffc0:     key = "F3";          break;

Modified: trunk/roadmap/src/roadmap_start.c
===================================================================
--- trunk/roadmap/src/roadmap_start.c	2015-06-29 22:02:49 UTC (rev 2903)
+++ trunk/roadmap/src/roadmap_start.c	2015-06-30 15:00:30 UTC (rev 2904)
@@ -1213,7 +1213,14 @@
    "Special-PageDown" ROADMAP_MAPPED_TO "zoomout",     // square   
    "Special-Home"     ROADMAP_MAPPED_TO "resumeroute", // X        
    "Special-End"      ROADMAP_MAPPED_TO "destination", // checkmark
+   "Special-LeftArrow"     ROADMAP_MAPPED_TO "left",  // joy button left
+   "Special-RightArrow"    ROADMAP_MAPPED_TO "right",  // joy button right
+   "Special-UpArrow"       ROADMAP_MAPPED_TO "up",  // joy button up
+   "Special-DownArrow"     ROADMAP_MAPPED_TO "down",  // joy button down
+   "Special-All-Arrows"    ROADMAP_MAPPED_TO "resumeroute", // joy button all
 
+   "Special-All-Arrows"     ROADMAP_MAPPED_TO "resumeroute", // mash the joy button down
+
    /* These binding are for regular keyboards (case unsensitive !): */
    "+"               ROADMAP_MAPPED_TO "zoomin",
    "="               ROADMAP_MAPPED_TO "zoomin",

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roadmap-commit Mailing List for RoadMap (Page 5)

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