| author | Radek Brich <radek.brich@devl.cz> |
| Wed, 13 Apr 2011 13:07:26 +0200 | |
| changeset 8 | fcaabd817774 |
| parent 5 | ae128c885d0f |
| child 9 | 7175ed629a76 |
| permissions | -rw-r--r-- |
| 0 | 1 |
# -*- coding: utf-8 -*- |
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import locale |
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from .widget import Widget |
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class EditField(Widget): |
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def __init__(self, width=10, value=''): |
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Widget.__init__(self, width, 1) |
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self.code = locale.getpreferredencoding() |
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if not type(value) is str: |
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value = str(value, self.code) |
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self.value = value |
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self.maxlen = None # unlimited |
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8
fcaabd817774
Update editfield - place cursor to end initially.
Radek Brich <radek.brich@devl.cz>
parents:
5
diff
changeset
|
19 |
self.tw = 0 # real width of text field (minus space for arrows) |
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fcaabd817774
Update editfield - place cursor to end initially.
Radek Brich <radek.brich@devl.cz>
parents:
5
diff
changeset
|
20 |
self.pos = len(value) # position of cursor in value |
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self.ofs = 0 # position of value beginning on screen |
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5
ae128c885d0f
New GridLayout. Change cursor behavior (hide on unfocus event). Change resize event to propagate through containers. Change container clipping - allowlayout=false children are clipped without borders. More Widget doc.
Radek Brich <radek.brich@devl.cz>
parents:
0
diff
changeset
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self.connect('resize', self.on_resize)
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self.connect('draw', self.on_draw)
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self.connect('keypress', self.on_keypress)
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5
ae128c885d0f
New GridLayout. Change cursor behavior (hide on unfocus event). Change resize event to propagate through containers. Change container clipping - allowlayout=false children are clipped without borders. More Widget doc.
Radek Brich <radek.brich@devl.cz>
parents:
0
diff
changeset
|
28 |
def on_resize(self): |
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8
fcaabd817774
Update editfield - place cursor to end initially.
Radek Brich <radek.brich@devl.cz>
parents:
5
diff
changeset
|
29 |
self.tw = self.width - 2 |
|
5
ae128c885d0f
New GridLayout. Change cursor behavior (hide on unfocus event). Change resize event to propagate through containers. Change container clipping - allowlayout=false children are clipped without borders. More Widget doc.
Radek Brich <radek.brich@devl.cz>
parents:
0
diff
changeset
|
30 |
|
|
ae128c885d0f
New GridLayout. Change cursor behavior (hide on unfocus event). Change resize event to propagate through containers. Change container clipping - allowlayout=false children are clipped without borders. More Widget doc.
Radek Brich <radek.brich@devl.cz>
parents:
0
diff
changeset
|
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def on_draw(self, screen, x, y): |
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# draw value |
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val = self.value + ' ' * self.tw # add spaces to fill rest of field |
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val = val[self.ofs : self.ofs + self.tw] # cut value - begin from ofs, limit to tw chars |
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screen.puts(x + 1, y, val.encode(self.code)) |
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# draw arrows if content overflows |
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c = ' ' |
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if self.ofs > 0: |
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c = '<' |
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screen.putch(x, y, c) |
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c = ' ' |
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if len(self.value[self.ofs:]) > self.tw: |
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c = '>' |
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screen.putch(x + self.width-1, y, c) |
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||
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8
fcaabd817774
Update editfield - place cursor to end initially.
Radek Brich <radek.brich@devl.cz>
parents:
5
diff
changeset
|
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self.cursor = (1 + self.pos - self.ofs, 0) |
| 0 | 50 |
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def on_keypress(self, keyname, char): |
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if keyname: |
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if keyname == 'left': |
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self.move_left() |
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if keyname == 'right': |
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self.move_right() |
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if keyname == 'backspace': |
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if self.pos > 0: |
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self.move_left() |
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self.del_char() |
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if keyname == 'delete': |
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self.del_char() |
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if char: |
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self.add_char(char) |
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self.move_right() |
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self.redraw() |
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def move_left(self): |
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8
fcaabd817774
Update editfield - place cursor to end initially.
Radek Brich <radek.brich@devl.cz>
parents:
5
diff
changeset
|
76 |
if self.pos - self.ofs > 1 or (self.ofs == 0 and self.pos == 1): |
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# move cursor |
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self.pos -= 1 |
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else: |
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# move content in field |
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8
fcaabd817774
Update editfield - place cursor to end initially.
Radek Brich <radek.brich@devl.cz>
parents:
5
diff
changeset
|
81 |
if self.ofs > 0: |
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self.pos -= 1 |
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self.ofs -= 1 |
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def move_right(self): |
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if self.pos < len(self.value): |
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8
fcaabd817774
Update editfield - place cursor to end initially.
Radek Brich <radek.brich@devl.cz>
parents:
5
diff
changeset
|
88 |
if self.pos - self.ofs < self.tw - 2 \ |
|
fcaabd817774
Update editfield - place cursor to end initially.
Radek Brich <radek.brich@devl.cz>
parents:
5
diff
changeset
|
89 |
or (self.pos - self.ofs == self.tw - 2 and self.pos == len(self.value)-1): |
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# move cursor |
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self.pos += 1 |
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else: |
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# move content in field |
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self.pos += 1 |
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self.ofs += 1 |
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def add_char(self, c): |
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self.value = self.value[:self.pos] + c + self.value[self.pos:] |
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def del_char(self): |
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self.value = self.value[:self.pos] + self.value[self.pos+1:] |
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