Mercurial Repositories > eric / file comparison
comparison: src/eric7/Network/IRC/IrcMessageEdit.py
src/eric7/Network/IRC/IrcMessageEdit.py
- branch
- eric7
- changeset 9221
- bf71ee032bb4
- parent 9209
- b99e7fd55fd3
- child 9653
- e67609152c5e
equal
deleted
inserted
replaced
| 9220:e9e7eca7efee | 9221:bf71ee032bb4 |
|---|---|
| 13 | 13 |
| 14 class IrcMessageEdit(QLineEdit): | 14 class IrcMessageEdit(QLineEdit): |
| 15 """ | 15 """ |
| 16 Class implementing a specialized line edit for entering IRC messages. | 16 Class implementing a specialized line edit for entering IRC messages. |
| 17 """ | 17 """ |
| 18 | |
| 18 MaxHistory = 100 | 19 MaxHistory = 100 |
| 19 | 20 |
| 20 def __init__(self, parent=None): | 21 def __init__(self, parent=None): |
| 21 """ | 22 """ |
| 22 Constructor | 23 Constructor |
| 23 | 24 |
| 24 @param parent reference to the parent widget | 25 @param parent reference to the parent widget |
| 25 @type QWidget | 26 @type QWidget |
| 26 """ | 27 """ |
| 27 super().__init__(parent) | 28 super().__init__(parent) |
| 28 | 29 |
| 29 self.__historyList = [""] # initialize with one empty line | 30 self.__historyList = [""] # initialize with one empty line |
| 30 self.__historyLine = 0 | 31 self.__historyLine = 0 |
| 31 | 32 |
| 32 def setText(self, text): | 33 def setText(self, text): |
| 33 """ | 34 """ |
| 34 Public method to set the text. | 35 Public method to set the text. |
| 35 | 36 |
| 36 Note: This reimplementation ensures, that the cursor is at the end of | 37 Note: This reimplementation ensures, that the cursor is at the end of |
| 37 the text. | 38 the text. |
| 38 | 39 |
| 39 @param text text to be set (string) | 40 @param text text to be set (string) |
| 40 """ | 41 """ |
| 41 super().setText(text) | 42 super().setText(text) |
| 42 self.setCursorPosition(len(text)) | 43 self.setCursorPosition(len(text)) |
| 43 | 44 |
| 44 def keyPressEvent(self, evt): | 45 def keyPressEvent(self, evt): |
| 45 """ | 46 """ |
| 46 Protected method implementing special key handling. | 47 Protected method implementing special key handling. |
| 47 | 48 |
| 48 @param evt reference to the event (QKeyEvent) | 49 @param evt reference to the event (QKeyEvent) |
| 49 """ | 50 """ |
| 50 key = evt.key() | 51 key = evt.key() |
| 51 if key == Qt.Key.Key_Up: | 52 if key == Qt.Key.Key_Up: |
| 52 self.__getHistory(True) | 53 self.__getHistory(True) |
| 58 if self.text(): | 59 if self.text(): |
| 59 self.__addHistory(self.text()) | 60 self.__addHistory(self.text()) |
| 60 elif evt.text() == chr(21): | 61 elif evt.text() == chr(21): |
| 61 # ^U: clear the text | 62 # ^U: clear the text |
| 62 self.setText("") | 63 self.setText("") |
| 63 | 64 |
| 64 super().keyPressEvent(evt) | 65 super().keyPressEvent(evt) |
| 65 | 66 |
| 66 def wheelEvent(self, evt): | 67 def wheelEvent(self, evt): |
| 67 """ | 68 """ |
| 68 Protected slot to support wheel events. | 69 Protected slot to support wheel events. |
| 69 | 70 |
| 70 @param evt reference to the wheel event (QWheelEvent) | 71 @param evt reference to the wheel event (QWheelEvent) |
| 71 """ | 72 """ |
| 72 delta = evt.angleDelta().y() | 73 delta = evt.angleDelta().y() |
| 73 if delta > 0: | 74 if delta > 0: |
| 74 self.__getHistory(True) | 75 self.__getHistory(True) |
| 75 elif delta < 0: | 76 elif delta < 0: |
| 76 self.__getHistory(False) | 77 self.__getHistory(False) |
| 77 | 78 |
| 78 super().wheelEvent(evt) | 79 super().wheelEvent(evt) |
| 79 | 80 |
| 80 def __addHistory(self, txt): | 81 def __addHistory(self, txt): |
| 81 """ | 82 """ |
| 82 Private method to add an entry to the history. | 83 Private method to add an entry to the history. |
| 83 | 84 |
| 84 @param txt text to be added to the history (string) | 85 @param txt text to be added to the history (string) |
| 85 """ | 86 """ |
| 86 # Only add the entry, if it is not the same as last time | 87 # Only add the entry, if it is not the same as last time |
| 87 if ( | 88 if len(self.__historyList) == 1 or ( |
| 88 len(self.__historyList) == 1 or | 89 len(self.__historyList) > 1 and self.__historyList[1] != txt |
| 89 (len(self.__historyList) > 1 and self.__historyList[1] != txt) | |
| 90 ): | 90 ): |
| 91 # Replace empty first entry and add new empty first entry | 91 # Replace empty first entry and add new empty first entry |
| 92 self.__historyList[0] = txt | 92 self.__historyList[0] = txt |
| 93 self.__historyList.insert(0, "") | 93 self.__historyList.insert(0, "") |
| 94 # Keep history below the defined limit | 94 # Keep history below the defined limit |
| 95 del self.__historyList[IrcMessageEdit.MaxHistory:] | 95 del self.__historyList[IrcMessageEdit.MaxHistory :] |
| 96 | 96 |
| 97 self.__historyLine = 0 | 97 self.__historyLine = 0 |
| 98 | 98 |
| 99 def __getHistory(self, up): | 99 def __getHistory(self, up): |
| 100 """ | 100 """ |
| 101 Private method to move in the history. | 101 Private method to move in the history. |
| 102 | 102 |
| 103 @param up flag indicating the direction (boolean) | 103 @param up flag indicating the direction (boolean) |
| 104 """ | 104 """ |
| 105 # preserve the current text, if it is not empty | 105 # preserve the current text, if it is not empty |
| 106 if self.text(): | 106 if self.text(): |
| 107 self.__historyList[self.__historyLine] = self.text() | 107 self.__historyList[self.__historyLine] = self.text() |
| 108 | 108 |
| 109 if up: | 109 if up: |
| 110 self.__historyLine += 1 | 110 self.__historyLine += 1 |
| 111 # If the position was moved past the end of the history, | 111 # If the position was moved past the end of the history, |
| 112 # go to the last entry | 112 # go to the last entry |
| 113 if self.__historyLine == len(self.__historyList): | 113 if self.__historyLine == len(self.__historyList): |
| 122 self.setText("") | 122 self.setText("") |
| 123 else: | 123 else: |
| 124 # If the position is not at the top of the history, | 124 # If the position is not at the top of the history, |
| 125 # decrement it | 125 # decrement it |
| 126 self.__historyLine -= 1 | 126 self.__historyLine -= 1 |
| 127 | 127 |
| 128 # replace the text of the line edit with the selected history entry | 128 # replace the text of the line edit with the selected history entry |
| 129 self.setText(self.__historyList[self.__historyLine]) | 129 self.setText(self.__historyList[self.__historyLine]) |
