From 8cf08582766e662b1dbc979b4f5b8dfb60ed4e90 Mon Sep 17 00:00:00 2001
From: Paul LeoNerd Evans <leonerd@leonerd.org.uk>
Date: Thu, 12 Apr 2012 17:02:45 +0100
Subject: Use spare bits in code.mouse[3] to store bigger mouse positions

---
 driver-csi.c | 39 ++++++++++++++++++++++-----------------
 t/30mouse.c  | 10 +++++++++-
 termkey.c    |  6 +++---
 3 files changed, 34 insertions(+), 21 deletions(-)

diff --git a/driver-csi.c b/driver-csi.c
index a8ae0c0..09c7dd7 100644
--- a/driver-csi.c
+++ b/driver-csi.c
@@ -288,15 +288,17 @@ static TermKeyResult peekkey_csi(TermKey *tk, TermKeyCsi *csi, size_t introlen,
       key->modifiers     = (key->code.mouse[0] & 0x1c) >> 2;
       key->code.mouse[0] &= ~0x1c;
 
-      if(arg[1] > 0xff)
-        key->code.mouse[1] = 0xff;
-      else
-        key->code.mouse[1] = arg[1];
+      key->code.mouse[3] = 0;
 
-      if(arg[2] > 0xff)
-        key->code.mouse[2] = 0xff;
-      else
-        key->code.mouse[2] = arg[2];
+      if(arg[1] > 0xfff)
+        arg[1] = 0xfff;
+      key->code.mouse[1]  = (arg[1] & 0x0ff);
+      key->code.mouse[3] |= (arg[1] & 0xf00) >> 8;
+
+      if(arg[2] > 0x7ff)
+        arg[1] = 0x7ff;
+      key->code.mouse[2]  = (arg[2] & 0x0ff);
+      key->code.mouse[3] |= (arg[2] & 0x300) >> 4;
 
       *nbytep = csi_len;
       return TERMKEY_RES_KEY;
@@ -308,17 +310,20 @@ static TermKeyResult peekkey_csi(TermKey *tk, TermKeyCsi *csi, size_t introlen,
       key->modifiers     = (key->code.mouse[0] & 0x1c) >> 2;
       key->code.mouse[0] &= ~0x1c;
 
-      if(arg[1] > 0xff)
-        key->code.mouse[1] = 0xff;
-      else
-        key->code.mouse[1] = arg[1];
+      key->code.mouse[3] = 0;
+
+      if(arg[1] > 0xfff)
+        arg[1] = 0xfff;
+      key->code.mouse[1]  = (arg[1] & 0x0ff);
+      key->code.mouse[3] |= (arg[1] & 0xf00) >> 8;
 
-      if(arg[2] > 0xff)
-        key->code.mouse[2] = 0xff;
-      else
-        key->code.mouse[2] = arg[2];
+      if(arg[2] > 0x7ff)
+        arg[1] = 0x7ff;
+      key->code.mouse[2]  = (arg[2] & 0x0ff);
+      key->code.mouse[3] |= (arg[2] & 0x300) >> 4;
 
-      key->code.mouse[3] = (cmd == 'm');
+      if(cmd == 'm') // release
+        key->code.mouse[3] |= 0x80;
 
       *nbytep = csi_len;
       return TERMKEY_RES_KEY;
diff --git a/t/30mouse.c b/t/30mouse.c
index a466bb4..f6cb707 100644
--- a/t/30mouse.c
+++ b/t/30mouse.c
@@ -10,7 +10,7 @@ int main(int argc, char *argv[])
   char       buffer[32];
   size_t     len;
 
-  plan_tests(58);
+  plan_tests(60);
 
   /* vt100 doesn't have a mouse, we need xterm */
   tk = termkey_new_abstract("xterm", 0);
@@ -126,6 +126,14 @@ int main(int argc, char *argv[])
 
   is_int(ev,     TERMKEY_MOUSE_RELEASE, "mouse event for release SGR");
 
+  termkey_push_bytes(tk, "\e[<0;500;300M", 13);
+
+  termkey_getkey(tk, &key);
+  termkey_interpret_mouse(tk, &key, &ev, &button, &line, &col);
+
+  is_int(line,   300, "mouse line for press SGR wide");
+  is_int(col,    500, "mouse column for press SGR wide");
+
   termkey_destroy(tk);
 
   return exit_status();
diff --git a/termkey.c b/termkey.c
index 0f3a28d..6664151 100644
--- a/termkey.c
+++ b/termkey.c
@@ -912,10 +912,10 @@ TermKeyResult termkey_interpret_mouse(TermKey *tk, const TermKeyKey *key, TermKe
     *button = 0;
 
   if(col)
-    *col  = (unsigned char)key->code.mouse[1];
+    *col  = (unsigned char)key->code.mouse[1] | ((unsigned char)key->code.mouse[3] & 0x0f) << 8;
 
   if(line)
-    *line = (unsigned char)key->code.mouse[2];
+    *line = (unsigned char)key->code.mouse[2] | ((unsigned char)key->code.mouse[3] & 0x70) << 4;
 
   if(!event)
     return TERMKEY_RES_KEY;
@@ -954,7 +954,7 @@ TermKeyResult termkey_interpret_mouse(TermKey *tk, const TermKeyKey *key, TermKe
   if(button)
     *button = btn;
 
-  if(key->code.mouse[3])
+  if(key->code.mouse[3] & 0x80)
     *event = TERMKEY_MOUSE_RELEASE;
 
   return TERMKEY_RES_KEY;
-- 
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