Implement mouse button events and motion-event and any-event tracking.

* src/vte.c: Implement mouse button events and motion-event and any-event
	tracking.  Implement the rest of the special graphics characters.
	Rename signals to be more consistent.  Add thin wrappers for emitting
	signals, and use them everywhere.  Support pangox even when XFT isn't
	available.  Try to provide bold text again.  Add signals for most of
	the window manipulation control sequences.  Hide the mouse cursor when
	we get keyboard events.  Use a different mouse cursor if the child is
	mouse-aware.  Handle eA() by treating it as as().
* src/caps.c, src/caps.h: Export definitions of VTE_CAP_CSI and friends.
* src/ring.c: Remove a check in vte_ring_at() which is already made before
	the function is called.

1 files changed, 6 insertions, 9 deletions

diff --git a/src/ring.c b/src/ring.c
index 0c99394..38290df 100644
--- a/src/ring.c
+++ b/src/ring.c
@@ -161,16 +161,13 @@ vte_ring_append(VteRing *ring, gpointer data)
 gpointer
 vte_ring_at(VteRing *ring, long position)
 {
-	if (vte_ring_contains(ring, position)) {
-		if (ring->array[position % ring->max] == NULL) {
-			g_error("NULL at %ld(%ld) delta %ld, length %ld.\n",
-				position, position % ring->max,
-				ring->delta, ring->length);
-		}
-		g_assert(ring->array[position % ring->max]);
-		return ring->array[position % ring->max];
+	if (ring->array[position % ring->max] == NULL) {
+		g_error("NULL at %ld(%ld) delta %ld, length %ld.\n",
+			position, position % ring->max,
+			ring->delta, ring->length);
 	}
-	return NULL;
+	g_assert(ring->array[position % ring->max] != NULL);
+	return ring->array[position % ring->max];
 }
 
 gboolean