--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-win32-2.6.1/lib/curses/textpad.py Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,188 @@
+"""Simple textbox editing widget with Emacs-like keybindings."""
+
+import curses
+import curses.ascii
+
+def rectangle(win, uly, ulx, lry, lrx):
+ """Draw a rectangle with corners at the provided upper-left
+ and lower-right coordinates.
+ """
+ win.vline(uly+1, ulx, curses.ACS_VLINE, lry - uly - 1)
+ win.hline(uly, ulx+1, curses.ACS_HLINE, lrx - ulx - 1)
+ win.hline(lry, ulx+1, curses.ACS_HLINE, lrx - ulx - 1)
+ win.vline(uly+1, lrx, curses.ACS_VLINE, lry - uly - 1)
+ win.addch(uly, ulx, curses.ACS_ULCORNER)
+ win.addch(uly, lrx, curses.ACS_URCORNER)
+ win.addch(lry, lrx, curses.ACS_LRCORNER)
+ win.addch(lry, ulx, curses.ACS_LLCORNER)
+
+class Textbox:
+ """Editing widget using the interior of a window object.
+ Supports the following Emacs-like key bindings:
+
+ Ctrl-A Go to left edge of window.
+ Ctrl-B Cursor left, wrapping to previous line if appropriate.
+ Ctrl-D Delete character under cursor.
+ Ctrl-E Go to right edge (stripspaces off) or end of line (stripspaces on).
+ Ctrl-F Cursor right, wrapping to next line when appropriate.
+ Ctrl-G Terminate, returning the window contents.
+ Ctrl-H Delete character backward.
+ Ctrl-J Terminate if the window is 1 line, otherwise insert newline.
+ Ctrl-K If line is blank, delete it, otherwise clear to end of line.
+ Ctrl-L Refresh screen.
+ Ctrl-N Cursor down; move down one line.
+ Ctrl-O Insert a blank line at cursor location.
+ Ctrl-P Cursor up; move up one line.
+
+ Move operations do nothing if the cursor is at an edge where the movement
+ is not possible. The following synonyms are supported where possible:
+
+ KEY_LEFT = Ctrl-B, KEY_RIGHT = Ctrl-F, KEY_UP = Ctrl-P, KEY_DOWN = Ctrl-N
+ KEY_BACKSPACE = Ctrl-h
+ """
+ def __init__(self, win, insert_mode=False):
+ self.win = win
+ self.insert_mode = insert_mode
+ (self.maxy, self.maxx) = win.getmaxyx()
+ self.maxy = self.maxy - 1
+ self.maxx = self.maxx - 1
+ self.stripspaces = 1
+ self.lastcmd = None
+ win.keypad(1)
+
+ def _end_of_line(self, y):
+ """Go to the location of the first blank on the given line,
+ returning the index of the last non-blank character."""
+ last = self.maxx
+ while True:
+ if curses.ascii.ascii(self.win.inch(y, last)) != curses.ascii.SP:
+ last = min(self.maxx, last+1)
+ break
+ elif last == 0:
+ break
+ last = last - 1
+ return last
+
+ def _insert_printable_char(self, ch):
+ (y, x) = self.win.getyx()
+ if y < self.maxy or x < self.maxx:
+ if self.insert_mode:
+ oldch = self.win.inch()
+ # The try-catch ignores the error we trigger from some curses
+ # versions by trying to write into the lowest-rightmost spot
+ # in the window.
+ try:
+ self.win.addch(ch)
+ except curses.error:
+ pass
+ if self.insert_mode:
+ (backy, backx) = self.win.getyx()
+ if curses.ascii.isprint(oldch):
+ self._insert_printable_char(oldch)
+ self.win.move(backy, backx)
+
+ def do_command(self, ch):
+ "Process a single editing command."
+ (y, x) = self.win.getyx()
+ self.lastcmd = ch
+ if curses.ascii.isprint(ch):
+ if y < self.maxy or x < self.maxx:
+ self._insert_printable_char(ch)
+ elif ch == curses.ascii.SOH: # ^a
+ self.win.move(y, 0)
+ elif ch in (curses.ascii.STX,curses.KEY_LEFT, curses.ascii.BS,curses.KEY_BACKSPACE):
+ if x > 0:
+ self.win.move(y, x-1)
+ elif y == 0:
+ pass
+ elif self.stripspaces:
+ self.win.move(y-1, self._end_of_line(y-1))
+ else:
+ self.win.move(y-1, self.maxx)
+ if ch in (curses.ascii.BS, curses.KEY_BACKSPACE):
+ self.win.delch()
+ elif ch == curses.ascii.EOT: # ^d
+ self.win.delch()
+ elif ch == curses.ascii.ENQ: # ^e
+ if self.stripspaces:
+ self.win.move(y, self._end_of_line(y))
+ else:
+ self.win.move(y, self.maxx)
+ elif ch in (curses.ascii.ACK, curses.KEY_RIGHT): # ^f
+ if x < self.maxx:
+ self.win.move(y, x+1)
+ elif y == self.maxy:
+ pass
+ else:
+ self.win.move(y+1, 0)
+ elif ch == curses.ascii.BEL: # ^g
+ return 0
+ elif ch == curses.ascii.NL: # ^j
+ if self.maxy == 0:
+ return 0
+ elif y < self.maxy:
+ self.win.move(y+1, 0)
+ elif ch == curses.ascii.VT: # ^k
+ if x == 0 and self._end_of_line(y) == 0:
+ self.win.deleteln()
+ else:
+ # first undo the effect of self._end_of_line
+ self.win.move(y, x)
+ self.win.clrtoeol()
+ elif ch == curses.ascii.FF: # ^l
+ self.win.refresh()
+ elif ch in (curses.ascii.SO, curses.KEY_DOWN): # ^n
+ if y < self.maxy:
+ self.win.move(y+1, x)
+ if x > self._end_of_line(y+1):
+ self.win.move(y+1, self._end_of_line(y+1))
+ elif ch == curses.ascii.SI: # ^o
+ self.win.insertln()
+ elif ch in (curses.ascii.DLE, curses.KEY_UP): # ^p
+ if y > 0:
+ self.win.move(y-1, x)
+ if x > self._end_of_line(y-1):
+ self.win.move(y-1, self._end_of_line(y-1))
+ return 1
+
+ def gather(self):
+ "Collect and return the contents of the window."
+ result = ""
+ for y in range(self.maxy+1):
+ self.win.move(y, 0)
+ stop = self._end_of_line(y)
+ if stop == 0 and self.stripspaces:
+ continue
+ for x in range(self.maxx+1):
+ if self.stripspaces and x > stop:
+ break
+ result = result + chr(curses.ascii.ascii(self.win.inch(y, x)))
+ if self.maxy > 0:
+ result = result + "\n"
+ return result
+
+ def edit(self, validate=None):
+ "Edit in the widget window and collect the results."
+ while 1:
+ ch = self.win.getch()
+ if validate:
+ ch = validate(ch)
+ if not ch:
+ continue
+ if not self.do_command(ch):
+ break
+ self.win.refresh()
+ return self.gather()
+
+if __name__ == '__main__':
+ def test_editbox(stdscr):
+ ncols, nlines = 9, 4
+ uly, ulx = 15, 20
+ stdscr.addstr(uly-2, ulx, "Use Ctrl-G to end editing.")
+ win = curses.newwin(nlines, ncols, uly, ulx)
+ rectangle(stdscr, uly-1, ulx-1, uly + nlines, ulx + ncols)
+ stdscr.refresh()
+ return Textbox(win).edit()
+
+ str = curses.wrapper(test_editbox)
+ print 'Contents of text box:', repr(str)