回答編集履歴
4
追記
answer
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@@ -119,4 +119,5 @@
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- [29.12. inspect — 活動中のオブジェクトの情報を取得する | docs.python.jp](https://docs.python.jp/3/library/inspect.html)
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- [Python でイベント指向のプログラミングを実現する | emptypage.jp](https://emptypage.jp/notes/pyevent.html)
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- [Does Python classes support events like other languages? | stackoverflow](https://stackoverflow.com/questions/6158602)
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- [Event system in Python | stackoverflow](https://stackoverflow.com/questions/1092531/event-system-in-python)
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- [Event system in Python | stackoverflow](https://stackoverflow.com/questions/1092531/event-system-in-python)
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- [Pythonの変数の変化を検知してEventを起こしたい | teratail](https://teratail.com/questions/124221)
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3
追記
answer
CHANGED
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@@ -118,4 +118,5 @@
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118
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■参考情報
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- [29.12. inspect — 活動中のオブジェクトの情報を取得する | docs.python.jp](https://docs.python.jp/3/library/inspect.html)
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- [Python でイベント指向のプログラミングを実現する | emptypage.jp](https://emptypage.jp/notes/pyevent.html)
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-
- [Does Python classes support events like other languages? | stackoverflow](https://stackoverflow.com/questions/6158602)
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- [Does Python classes support events like other languages? | stackoverflow](https://stackoverflow.com/questions/6158602)
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- [Event system in Python | stackoverflow](https://stackoverflow.com/questions/1092531/event-system-in-python)
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2
追記
answer
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@@ -116,5 +116,6 @@
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```
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■参考情報
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-
- [29.12. inspect — 活動中のオブジェクトの情報を取得する](https://docs.python.jp/3/library/inspect.html)
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- [29.12. inspect — 活動中のオブジェクトの情報を取得する | docs.python.jp](https://docs.python.jp/3/library/inspect.html)
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- [Python でイベント指向のプログラミングを実現する](https://emptypage.jp/notes/pyevent.html)
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- [Python でイベント指向のプログラミングを実現する | emptypage.jp](https://emptypage.jp/notes/pyevent.html)
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- [Does Python classes support events like other languages? | stackoverflow](https://stackoverflow.com/questions/6158602)
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1
追記
answer
CHANGED
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@@ -1,4 +1,6 @@
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1
1
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ModelからViewに通知したいという要件として認識しました。
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Eventを発火させる部分はデコレータでもう少し簡単に記述できそうですが。
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こんな感じのコードでどうでしょうか。
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3
5
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4
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```Python
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@@ -8,15 +10,50 @@
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from pprint import pformat
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class EventHandler(object):
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def __init__(self):
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self._observers = []
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def append(self, listener):
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"""
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Listenerの追加
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:param listener:
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:return:
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"""
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assert listener is not None
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if listener not in self._observers:
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self._observers.append(listener)
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return self
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def remove(self, listener):
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"""
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Listenerの削除
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:param listener:
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:return:
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"""
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self._observers.remove(listener)
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return self
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def fire(self, sender: str, new_value):
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for callback in self._observers:
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callback(sender, new_value)
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def __iadd__(self, other):
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return self.append(other)
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def __isub__(self, other):
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return self.remove(other)
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class Model(object):
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"""
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モデル
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"""
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def __init__(self):
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self.handler = EventHandler()
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self._TopMost = True
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self._ForeColor = "#000000"
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self._BackColor = "#000000"
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-
self._observers = []
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@property
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def top_most(self) -> bool:
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@@ -25,7 +62,7 @@
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@top_most.setter
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def top_most(self, value: bool) -> None:
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self._TopMost = value
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-
self.
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self.handler.fire(currentframe().f_code.co_name, value)
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@property
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def fore_color(self) -> str:
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@@ -34,7 +71,7 @@
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@fore_color.setter
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def fore_color(self, value: str) -> None:
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36
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self._ForeColor = value
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self.
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self.handler.fire(currentframe().f_code.co_name, value)
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38
75
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@property
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def back_color(self) -> str:
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@@ -43,29 +80,8 @@
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@back_color.setter
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def back_color(self, value: str) -> None:
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45
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self._BackColor = value
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-
self.
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self.handler.fire(currentframe().f_code.co_name, value)
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84
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48
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-
def add_listener(self, listener):
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49
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"""
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50
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-
Listenerの追加
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51
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-
:param listener:
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-
:return:
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"""
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-
if listener not in self._observers:
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55
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-
self._observers.append(listener)
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-
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57
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-
def remove_listener(self, listener):
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"""
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-
Listenerの削除
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60
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-
:param listener:
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61
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-
:return:
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62
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-
"""
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63
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-
self._observers.remove(listener)
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-
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-
def _fire_property_change(self, name: str, new_value):
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66
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-
for callback in self._observers:
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-
callback(name, new_value)
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68
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-
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85
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def __deepcopy__(self, memo):
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cls = self.__class__
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result = cls.__new__(cls)
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@@ -78,8 +94,8 @@
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78
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return pformat(vars(self), indent=4, width=1)
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-
def changed(
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97
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+
def changed(sender, val):
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82
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-
print(
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98
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print(sender, val)
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84
100
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85
101
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def main():
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@@ -87,12 +103,18 @@
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87
103
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エントリーポイント
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88
104
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"""
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89
105
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model = Model()
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90
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-
model.
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106
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+
model.handler += changed
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107
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+
print(model)
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108
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+
print("#" * 60)
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91
109
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model.top_most = False
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92
110
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model.fore_color = "#AAAAAA"
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111
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print(model)
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93
112
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94
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-
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95
113
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if __name__ == '__main__':
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main()
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115
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-
```
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116
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+
```
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117
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+
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118
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+
■参考情報
|
|
119
|
+
- [29.12. inspect — 活動中のオブジェクトの情報を取得する](https://docs.python.jp/3/library/inspect.html)
|
|
120
|
+
- [Python でイベント指向のプログラミングを実現する](https://emptypage.jp/notes/pyevent.html)
|