--- a/tuikit/editbox.py Wed Jan 30 20:21:08 2013 +0100
+++ b/tuikit/editbox.py Fri Feb 01 00:24:02 2013 +0100
@@ -5,80 +5,73 @@
class EditBox(Widget):
+
+ """Multiline text edit widget.
+
+ Spot is used for text cursor position.
+
+ """
+
def __init__(self, text=''):
Widget.__init__(self)
- self._default_size.update(20, 20)
+ self._default_size.update(40, 40)
self.allow_focus = True
- self.xofs = 0
- self.yofs = 0
+ # Cursor position is same as spot.
+ # This variable rememberes horizontal position
+ # for the case when cursor moves to shorter line.
+ self.cursor_column = 0
+ # selection - line and column of selection start
+ self.sel_line = 0
+ self.sel_column = 0
- # cursor
- self.cline = 0
- self.cpos = 0
+ self.add_events('scroll', Event)
+
+ self.text = text
- # selection
- self.sline = 0
- self.spos = 0
+ @property
+ def text(self):
+ return '\n'.join(self.lines)
- self.add_events(
- 'scroll', Event,
- 'areasize', Event)
+ @text.setter
+ def text(self, value):
+ self.lines = value.split('\n')
+ maxlen = max([len(line) for line in self.lines])
+ self._default_size.update(w=maxlen, h=len(self.lines))
- self.set_text(text)
+ @property
+ def cur_line(self):
+ return self.lines[self._spot.y]
+ @cur_line.setter
+ def cur_line(self, value):
+ self.lines[self._spot.y] = value
def on_draw(self, ev):
- for j in range(self.height):
- if self.yofs + j >= len(self.lines):
- break
- line = self.lines[self.yofs + j]
- #if len(line) < self.width:
- #line += ' ' * (self.width - len(line))
- #else:
- #line = line[:self.width]
+ ev.driver.pushcolor('normal')
+ end_y = min(len(self.lines), ev.exposed.y + ev.exposed.h)
+ for j in range(ev.exposed.y, end_y):
+ line = self.lines[j]
ev.driver.puts(ev.x, ev.y + j, line)
-
- self.cursor = (self.get_cpos() - self.xofs, self.cline - self.yofs)
-
+ self.cursor = (self._spot.x, self._spot.y)
+ ev.driver.popcolor()
def on_keypress(self, ev):
if ev.keyname:
- if ev.keyname == 'left':
- self.move_left()
-
- if ev.keyname == 'right':
- self.move_right()
-
- if ev.keyname == 'home':
- self.move_home()
-
- if ev.keyname == 'end':
- self.move_end()
-
- if ev.keyname == 'up':
- self.move_up()
-
- if ev.keyname == 'down':
- self.move_down()
-
- if ev.keyname == 'pageup':
- self.move_pageup()
-
- if ev.keyname == 'pagedown':
- self.move_pagedown()
-
- if ev.keyname == 'backspace':
- if self.cline > 0 or self.cpos > 0:
- self.move_left()
- self.del_char()
-
- if ev.keyname == 'delete':
- self.del_char()
-
- if ev.keyname == 'enter':
- self.add_newline()
- self.move_right()
+ if ev.keyname == 'left': self.move_left()
+ if ev.keyname == 'right': self.move_right()
+ if ev.keyname == 'home': self.move_home()
+ if ev.keyname == 'end': self.move_end()
+ if ev.keyname == 'up': self.move_up()
+ if ev.keyname == 'down': self.move_down()
+ if ev.keyname == 'pageup': self.move_pageup()
+ if ev.keyname == 'pagedown': self.move_pagedown()
+ if ev.keyname == 'backspace': self.backspace()
+ if ev.keyname == 'delete': self.del_char()
+ if ev.keyname == 'enter': self.add_newline(move=True)
+ if ev.mod == ev.MOD_CTRL:
+ if ev.keyname == 'home': self.move_top()
+ if ev.keyname == 'end': self.move_bottom()
if ev.char:
self.add_char(ev.char)
@@ -86,139 +79,114 @@
self.redraw()
+ def on_mousedown(self, ev):
+ y = ev.wy
+ x = min(ev.wx, len(self.lines[y]))
+ self._spot.update(x=x, y=y)
def on_mousewheel(self, ev):
- # up
if ev.button == 4:
- self.move_up()
- # down
+ # wheel up
+ self.emit('scrollreq', -5)
if ev.button == 5:
- self.move_down()
+ # wheel down
+ self.emit('scrollreq', +5)
self.redraw()
-
- def set_text(self, text):
- self.lines = text.split('\n')
- self.emit('areasize')
-
-
- def get_text(self):
- return '\n'.join(self.lines)
-
-
- def get_linelen(self):
- return len(self.lines[self.cline])
-
-
- def get_cpos(self):
- if self.cpos > self.get_linelen():
- return self.get_linelen()
- return self.cpos
-
-
- def set_yofs(self, yofs):
- if yofs > len(self.lines) - self.height:
- yofs = len(self.lines) - self.height
- if yofs < 0:
- yofs = 0
- if self.yofs != yofs:
- self.yofs = yofs
- self.emit('scroll')
-
-
def move_left(self):
- if self.cpos > 0:
- self.cpos = self.get_cpos() - 1
+ if self._spot.x > 0:
+ self._spot.x -= 1
else:
- if self.move_up():
- self.cpos = self.get_linelen()
-
+ if self._spot.y > 0:
+ self._spot.y -= 1
+ self._spot.x = len(self.cur_line)
+ self.cursor_column = self._spot.x
def move_right(self):
- if self.cpos < self.get_linelen():
- self.cpos += 1
+ if self._spot.x < len(self.cur_line):
+ self._spot.x += 1
else:
- if self.move_down():
- self.cpos = 0
-
+ if self._spot.y < len(self.lines) - 1:
+ self._spot.y += 1
+ self._spot.x = 0
+ self.cursor_column = self._spot.x
def move_home(self):
- self.cpos = 0
-
+ self._spot.x = 0
+ self.cursor_column = self._spot.x
def move_end(self):
- self.cpos = self.get_linelen()
-
+ self._spot.x = len(self.cur_line)
+ self.cursor_column = self._spot.x
def move_up(self):
- if self.cline > 0:
- self.cline -= 1
- if self.cline < self.yofs:
- self.set_yofs(self.cline)
- return True
- return False
-
+ if self._spot.y > 0:
+ self._spot.y -= 1
+ self._update_spot_x()
def move_down(self):
- if self.cline < len(self.lines) - 1:
- self.cline += 1
- if self.cline > self.yofs + self.height - 1:
- self.set_yofs(self.cline - (self.height - 1))
- return True
- return False
-
+ if self._spot.y < len(self.lines) - 1:
+ self._spot.y += 1
+ self._update_spot_x()
def move_pageup(self):
- if self.cline >= self.height - 1:
- self.cline -= self.height - 1
- self.set_yofs(self.yofs - (self.height - 1))
+ if self._spot.y >= self.view_height - 1:
+ self.emit('scrollreq', - (self.view_height - 1))
+ self._spot.y -= self.view_height - 1
else:
- self.cline = 0
- self.set_yofs(0)
-
+ self._spot.y = 0
+ self._update_spot_x()
def move_pagedown(self):
- if self.cline <= len(self.lines) - (self.height - 1):
- self.cline += self.height - 1
- self.set_yofs(self.yofs + (self.height - 1))
+ if len(self.lines) - self._spot.y > (self.view_height - 1):
+ self.emit('scrollreq', (self.view_height - 1))
+ self._spot.y += self.view_height - 1
else:
- self.cline = len(self.lines) - 1
- self.set_yofs(self.cline)
-
+ self._spot.y = len(self.lines) - 1
+ self._update_spot_x()
- def move_pagefirst(self):
- self.cline = 0
- self.set_yofs(0)
-
+ def move_top(self):
+ self._spot.y = 0
+ self._update_spot_x()
- def move_pagelast(self):
- self.cline = len(self.lines) - 1
- self.set_yofs(self.cline)
-
+ def move_bottom(self):
+ self._spot.y = len(self.lines) - 1
+ self._update_spot_x()
def add_char(self, c):
- ln = self.lines[self.cline]
- cpos = self.get_cpos()
- self.lines[self.cline] = ln[:cpos] + c + ln[cpos:]
- self.cpos = cpos
-
+ ln = self.cur_line
+ sx = self._spot.x
+ self.cur_line = ln[:sx] + c + ln[sx:]
+ self.cursor_column = sx
- def add_newline(self):
- ln = self.lines[self.cline]
- cpos = self.get_cpos()
- self.lines[self.cline] = ln[cpos:]
- self.lines.insert(self.cline, ln[:cpos])
- self.emit('areasize')
+ def add_newline(self, move=False):
+ ln = self.cur_line
+ sx = self._spot.x
+ self.cur_line = ln[sx:]
+ self.lines.insert(self._spot.y, ln[:sx])
+ self._default_size.update(h=len(self.lines))
+ if move:
+ self.move_right()
+ def backspace(self):
+ if self._spot.y > 0 or self._spot.x > 0:
+ self.move_left()
+ self.del_char()
def del_char(self):
- ln = self.lines[self.cline]
- cpos = self.get_cpos()
- if cpos == self.get_linelen():
- if self.cline + 1 < len(self.lines):
- self.lines[self.cline] = self.lines[self.cline] + self.lines[self.cline+1]
- del self.lines[self.cline+1]
- self.emit('areasize')
+ ln = self.cur_line
+ sx = self._spot.x
+ if sx == len(self.cur_line):
+ if self._spot.y + 1 < len(self.lines):
+ self.cur_line += self.lines[self._spot.y+1]
+ del self.lines[self._spot.y+1]
+ self._default_size.update(h=len(self.lines))
else:
- self.lines[self.cline] = ln[:cpos] + ln[cpos+1:]
+ self.cur_line = ln[:sx] + ln[sx+1:]
+ def _update_spot_x(self):
+ if self.cursor_column > len(self.cur_line):
+ self._spot.x = len(self.cur_line)
+ else:
+ self._spot.x = self.cursor_column
+