Import of the contiki-2.x development code from the SICS internal CVS server

core/lib/ctk-textentry-multiline.c

@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 2002-2003, Adam Dunkels.
+ * All rights reserved. 
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions 
+ * are met: 
+ * 1. Redistributions of source code must retain the above copyright 
+ *    notice, this list of conditions and the following disclaimer. 
+ * 2. Redistributions in binary form must reproduce the above
+ *    copyright notice, this list of conditions and the following
+ *    disclaimer in the documentation and/or other materials provided
+ *    with the distribution. 
+ * 3. The name of the author may not be used to endorse or promote
+ *    products derived from this software without specific prior
+ *    written permission.  
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  
+ *
+ * This file is part of the Contiki operating system.
+ *
+ * $Id: ctk-textentry-multiline.c,v 1.1 2006/06/17 22:41:17 adamdunkels Exp $
+ *
+ */
+
+#include <string.h>
+
+#include "ctk/ctk.h"
+
+#include "lib/ctk-textentry-multiline.h"
+
+/*-----------------------------------------------------------------------------------*/
+unsigned char
+ctk_textentry_multiline_input(ctk_arch_key_t c,
+			      struct ctk_textentry *t)
+{
+  unsigned char len;
+
+  switch(c) {
+  case 0:
+    t->xpos = strlen(&t->text[t->ypos * (t->len + 1)]);
+    if(t->xpos == t->len) {
+      --t->xpos;
+    }
+    return 1;
+
+  case CH_CURS_UP:
+    if(t->ypos == 0) {
+      t->xpos = 0;
+      return 1;
+    }
+    --t->ypos;
+    break;
+
+  case CH_CURS_DOWN:
+    if(t->ypos == t->h - 1) {
+      t->xpos = strlen(&t->text[t->ypos * (t->len + 1)]);
+      if(t->xpos == t->len) {
+	--t->xpos;
+      }
+      return 1;
+    }
+    ++t->ypos;
+    break;
+
+  case CH_ENTER:
+    if(t->ypos == t->h - 1) {
+      return 0;
+    }
+    ++t->ypos;
+    t->xpos = 0;
+    return 1;
+
+  default:
+    return 0;
+  }
+
+  len = strlen(&t->text[t->ypos * (t->len + 1)]);
+  if(t->xpos > len) {
+    t->xpos = len;
+  }
+  return 1;
+}
+/*-----------------------------------------------------------------------------------*/