altscreen implemented, programs not shown on altscreen

src/asciterm_generic.py

@@ -175,6 +175,7 @@ def on_set_term_title(self, title):
         return True
 
     def on_set_term_altscreen(self, screen):
+        self.parent.altscreen = screen
         return True
 
 class ArtSciTerm:
@@ -207,6 +208,7 @@ def adapt_to_dim(self, width, height):
 
     def __init__(self, args):
 
+        self.altscreen = False
         self.width = 1000
         self.height = 1000
         size = args[0].size.split("x")
@@ -346,8 +348,9 @@ def draw(self, event):
 
         # self.window.clear()
         with self.progman_lock:
-            for internal_id, prog_wrap in self.progman.prog_wraps.items():
-                prog_wrap.draw(time_now = time_now, mouse = self.mouse)
+            if not self.altscreen:
+                for internal_id, prog_wrap in self.progman.prog_wraps.items():
+                    prog_wrap.draw(time_now = time_now, mouse = self.mouse)
 
         self.program.draw(self.program.GL_POINTS)
 
@@ -377,7 +380,7 @@ def process(self):
         with self.progman_lock:
             for internal_id, prog_wrap in self.progman.prog_wraps.items():
                 prog_wrap.active = False
-        while True:
+        while not self.altscreen:
             magic_pos = as_str.find(BufferProcessor.magic_string, magic_pos)
             if (magic_pos != -1):
                 int_pos = magic_pos + len(BufferProcessor.magic_string)

src/vterm/vterm.py

@@ -345,7 +345,7 @@ def _on_bell(self, user):
     def _on_settermprop(self, prop, val, user):
         # TODO .. use this to set the window title...
         if prop == VTerm.VTERM_PROP_ALTSCREEN:
-            self.on_set_term_altscreen(val)
+            self.on_set_term_altscreen(val.contents.boolean)
         elif prop == VTerm.VTERM_PROP_TITLE:
             self.on_set_term_title(val.contents.string)
         return int(True)