fix setTerminal. add termswitch test.

lib/program.js

@@ -302,14 +302,9 @@ Program.prototype.__defineSetter__('terminal', function(terminal) {
 });
 
 Program.prototype.setTerminal = function(terminal) {
-  if (!this.tput) {
   this._terminal = terminal;
+  delete this._tputSetup;
   this.setupTput();
-    return;
-  }
-  this._terminal = terminal;
-  this.tput.terminal = terminal;
-  this.tput.setup();
 };
 
 Program.prototype.has = function(name) {

lib/widgets/screen.js

@@ -257,25 +257,21 @@ Screen.prototype.__defineGetter__('terminal', function() {
 });
 
 Screen.prototype.__defineSetter__('terminal', function(terminal) {
-  return this.program.terminal = terminal;
+  this.setTerminal(terminal);
+  return this.program.terminal;
 });
 
 Screen.prototype.setTerminal = function(terminal) {
-  var entered = !!this.program.isAlt
-    , result;
-
+  var entered = !!this.program.isAlt;
   if (entered) {
     this.program._buf = '';
     this.leave();
   }
-
-  result = this.program.setTerminal(terminal);
-
+  this.program.setTerminal(terminal);
+  this.tput = this.program.tput;
   if (entered) {
     this.enter();
   }
-
-  return result;
 };
 
 Screen.prototype.enter = function() {

test/widget-termswitch.js

@@ -0,0 +1,53 @@
+var blessed = require('../')
+  , screen;
+
+screen = blessed.screen({
+  dump: __dirname + '/logs/termswitch.log',
+  smartCSR: true,
+  warnings: true
+});
+
+var lorem = require('fs').readFileSync(__dirname + '/git.diff', 'utf8');
+
+var btext = blessed.box({
+  parent: screen,
+  left: 'center',
+  top: 'center',
+  width: '80%',
+  height: '80%',
+  style: {
+    bg: 'green'
+  },
+  border: 'line',
+  content: 'CSR should still work.'
+});
+
+var text = blessed.scrollabletext({
+  parent: screen,
+  content: lorem,
+  border: 'line',
+  left: 'center',
+  top: 'center',
+  draggable: true,
+  width: '50%',
+  height: '50%',
+  mouse: true,
+  keys: true,
+  vi: true
+});
+
+text.focus();
+
+screen.key('q', function() {
+  return process.exit(0);
+});
+
+screen.render();
+
+setTimeout(function() {
+  // screen.setTerminal('vt100');
+  screen.terminal = 'vt100';
+  screen.render();
+  text.setContent(screen.program._terminal);
+  screen.render();
+}, 1000);