class Editor:
def __init__(self, h, w):
self.win = Window(top=0, x=w, y=h)
self.buffer = Buffer()
self.filename = ""
self.cursor = Cursor()
self.mode = "normal"
self.exit = False
self.handlers = Handler()
self.command = ""
self.message = ""
def __str__(self):
return "An Editor"
def port(self):
lines = self.textport()
lines.append(self.statline())
return lines
def textport(self):
if not self.buffer.valid_line(self.win.top):
raise IndexError, "Line %d is not within the buffer." % self.win.top
if self.win.top + self.win.y >= self.buffer.line_count():
slines = self.buffer.lines[self.win.top:]
extracount = self.win.y - len(slines)
for i in range(extracount):
slines.append("")
else:
slines = self.buffer.lines[self.win.top:self.win.top + self.win.y]
vlines = [linepad(line, self.win.x) for line in slines]
return vlines
def statline(self):
if self.command:
left = self.command
else:
left = self.message
right = "%s %s " % (self.mode, self.cursor)
line = left + " " * (self.win.x - len(left) - len(right) - 1) + right
return line
def set_win(self, firstline, height, width):
if height < 2 or width < 10 or firstline < 0:
raise Exception, "Can't set a window to (%d,%d,%d)." % (
firstline, height, width)
self.win.y = height
self.win.x = width
self.win.top = firstline
#adjust cursor to still be in the window..
if self.cursor.y >= self.win.top + self.win.y:
self.cursor.y = self.win.top + self.win.y - 1
elif self.cursor.y < self.win.top:
self.cursor.y = self.win.top
if self.cursor.x >= self.win.x:
self.cursor.x = self.win.x - 1
def move_cursor(self, row=-1, col=-1):
if row == -1: row = self.cursor.y
if col == -1: col = self.cursor.x
nc = Cursor(y=self.cursor.y, x=self.cursor.x)
#find a good y value
if row >= self.buffer.line_count():
nc.y = self.buffer.line_count() - 1
elif row < 0:
nc.y = 0
else:
nc.y = row
#find a good x value on that line
if col >= len(self.buffer.get_line(nc.y)):
nc.x = len(self.buffer.get_line(nc.y)) - 1
elif col < 0:
nc.x = 0
else:
nc.x = col
if nc.x > self.win.x - 1:
nc.x = self.win.x - 1
self.cursor = nc
#adjust the window to include the cursor
if self.cursor.y < self.win.top:
self.win.top = self.cursor.y
elif self.cursor.y >= self.win.top + self.win.y:
self.win.top = self.cursor.y - self.win.y + 1
def move_window(self, top):
newtop = self.win.top
#figure out where the window will now sit
if top < 0:
newtop = 0
elif top >= self.buffer.line_count() - self.win.y:
newtop = max(0, self.buffer.line_count() - self.win.y)
else:
newtop = top
self.win.top = newtop
#figure out a new cursor location that's within that window.
if self.cursor.y < self.win.top:
self.move_cursor(row=self.win.top)
elif self.cursor.y >= self.win.top + self.win.y:
self.move_cursor(row=self.win.top + self.win.y - 1)
def handle_key(self, key):
self.message = ""
self.command = self.command + key
if self.handlers.mode[self.mode].has_key(self.command):
self.handlers.call_handler(self, self.mode, self.command)
self.command = ""
else:
keys = self.handlers.mode[self.mode].keys()
for key in keys:
if key.startswith(self.command):
return
attempted = self.command
self.command = ""
raise KeyChainError, "The keychain '%s' doesn't belong to any existing maps." % attempted
class Editor:
def __init__(self,h,w):
self.win = Window(top=0,x=w,y=h)
self.buffer = Buffer()
self.filename = ""
self.cursor = Cursor()
self.mode = "normal"
self.exit = False
self.handlers = Handler()
self.command = ""
self.message = ""
def __str__(self):
return "An Editor"
def port(self):
lines = self.textport()
lines.append(self.statline())
return lines
def textport(self):
if not self.buffer.valid_line(self.win.top):
raise IndexError, "Line %d is not within the buffer." % self.win.top
if self.win.top+ self.win.y >= self.buffer.line_count():
slines = self.buffer.lines[self.win.top:]
extracount = self.win.y - len(slines)
for i in range(extracount):
slines.append("")
else:
slines = self.buffer.lines[self.win.top:self.win.top+self.win.y]
vlines = [linepad(line,self.win.x) for line in slines]
return vlines
def statline(self):
if self.command:
left = self.command
else:
left = self.message
right = "%s %s " % (self.mode,self.cursor)
line = left + " " * (self.win.x - len(left) - len(right) - 1) + right
return line
def set_win(self,firstline,height,width):
if height < 2 or width < 10 or firstline < 0:
raise Exception, "Can't set a window to (%d,%d,%d)." % (firstline,height,width)
self.win.y = height
self.win.x = width
self.win.top = firstline
#adjust cursor to still be in the window..
if self.cursor.y >= self.win.top + self.win.y:
self.cursor.y = self.win.top+ self.win.y - 1
elif self.cursor.y < self.win.top:
self.cursor.y = self.win.top
if self.cursor.x >= self.win.x:
self.cursor.x = self.win.x - 1
def move_cursor(self,row=-1,col=-1):
if row == -1: row = self.cursor.y
if col == -1: col = self.cursor.x
nc = Cursor(y=self.cursor.y,x=self.cursor.x)
#find a good y value
if row >= self.buffer.line_count():
nc.y = self.buffer.line_count()-1
elif row < 0:
nc.y = 0
else:
nc.y = row
#find a good x value on that line
if col >= len(self.buffer.get_line(nc.y)):
nc.x = len(self.buffer.get_line(nc.y)) - 1
elif col < 0:
nc.x = 0
else:
nc.x = col
if nc.x > self.win.x-1:
nc.x = self.win.x-1
self.cursor = nc
#adjust the window to include the cursor
if self.cursor.y < self.win.top:
self.win.top = self.cursor.y
elif self.cursor.y >= self.win.top + self.win.y:
self.win.top = self.cursor.y - self.win.y + 1
def move_window(self,top):
newtop = self.win.top
#figure out where the window will now sit
if top < 0:
newtop = 0
elif top >= self.buffer.line_count() - self.win.y:
newtop = max(0,self.buffer.line_count()-self.win.y)
else:
newtop = top
self.win.top = newtop
#figure out a new cursor location that's within that window.
if self.cursor.y < self.win.top:
self.move_cursor(row=self.win.top)
elif self.cursor.y >= self.win.top + self.win.y:
self.move_cursor(row=self.win.top + self.win.y - 1)
def handle_key(self,key):
self.message = ""
self.command = self.command + key
if self.handlers.mode[self.mode].has_key(self.command):
self.handlers.call_handler(self,self.mode,self.command)
self.command = ""
else:
keys = self.handlers.mode[self.mode].keys()
for key in keys:
if key.startswith(self.command):
return
attempted = self.command
self.command = ""
raise KeyChainError, "The keychain '%s' doesn't belong to any existing maps." % attempted
