Changed redraw policy.

diff --git a/Demo/cwilib/vt100win.py b/Demo/cwilib/vt100win.py
index dcaf17bd1c7ce423ebb13f95e8e5134d5745bcbd..122e5f9dfaee582f3237fe38ed186dfdd2228235 100755 (executable)
--- a/Demo/cwilib/vt100win.py
+++ b/Demo/cwilib/vt100win.py
@@ -9,16 +9,18 @@ class VT100win(VT100):
        def __init__(self):
                VT100.__init__(self)
                self.window = None
-##             self.last_x = -1
-##             self.last_y = -1
+               self.last_x = -1
+               self.last_y = -1
 
        def __del__(self):
                self.close()
 
        def open(self, title):
                stdwin.setfont('7x14')
-               self.docwidth = self.width * stdwin.textwidth('m')
-               self.docheight = self.height * stdwin.lineheight()
+               self.charwidth = stdwin.textwidth('m')
+               self.lineheight = stdwin.lineheight()
+               self.docwidth = self.width * self.charwidth
+               self.docheight = self.height * self.lineheight
                stdwin.setdefwinsize(self.docwidth + 2, self.docheight + 2)
                stdwin.setdefscrollbars(0, 0)
                self.window = stdwin.open(title)
@@ -31,7 +33,8 @@ class VT100win(VT100):
 
        def show(self):
                if not self.window: return
-               self.draw(((-10, -10), (self.docwidth+10, self.docheight+10)))
+               self.window.change(((-10, -10),
+                         (self.docwidth+10, self.docheight+10)))
 
        def draw(self, detail):
                d = self.window.begindrawing()
@@ -39,8 +42,8 @@ class VT100win(VT100):
                red = stdwin.fetchcolor('red')
                d.cliprect(detail)
                d.erase(detail)
-               lh = d.lineheight()
-               cw = d.textwidth('m')
+               lh = self.lineheight
+               cw = self.charwidth
                for y in range(self.height):
                        d.text((0, y*lh), self.lines[y].tostring())
                        if self.attrs[y] <> self.blankattr:
@@ -56,13 +59,20 @@ class VT100win(VT100):
                d.setfgcolor(fg)
                d.close()
 
-##     def move_to(self, x, y):
-##             VT100.move_to(self, x, y)
-##             if self.y != self.last_y:
-##                     self.show()
-##             self.last_x = self.x
-##             self.last_y = y
+       def move_to(self, x, y):
+               VT100.move_to(self, x, y)
+               if not self.window: return
+               if self.y != self.last_y:
+                       self.window.change((0, self.last_y * self.lineheight),
+                                 (self.width*self.charwidth,
+                                 (self.last_y+1) * self.lineheight))
+               self.last_x = self.x
+               self.last_y = y
+               self.window.change((0, self.y * self.lineheight),
+                         (self.width*self.charwidth,
+                         (self.y+1) * self.lineheight))
 
        def send(self, str):
                VT100.send(self, str)
-               self.show()
+##             self.show()
+