forked from pythonguis/pythonguis-examples
-
Notifications
You must be signed in to change notification settings - Fork 0
/
notepad.py
188 lines (141 loc) · 6.56 KB
/
notepad.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtPrintSupport import *
import os
import sys
class MainWindow(QMainWindow):
def __init__(self, *args, **kwargs):
super(MainWindow, self).__init__(*args, **kwargs)
layout = QVBoxLayout()
self.editor = QPlainTextEdit() # Could also use a QTextEdit and set self.editor.setAcceptRichText(False)
# Setup the QTextEdit editor configuration
fixedfont = QFontDatabase.systemFont(QFontDatabase.FixedFont)
fixedfont.setPointSize(12)
self.editor.setFont(fixedfont)
# self.path holds the path of the currently open file.
# If none, we haven't got a file open yet (or creating new).
self.path = None
layout.addWidget(self.editor)
container = QWidget()
container.setLayout(layout)
self.setCentralWidget(container)
self.status = QStatusBar()
self.setStatusBar(self.status)
file_toolbar = QToolBar("File")
file_toolbar.setIconSize(QSize(14, 14))
self.addToolBar(file_toolbar)
file_menu = self.menuBar().addMenu("&File")
open_file_action = QAction(QIcon(os.path.join('images', 'blue-folder-open-document.png')), "Open file...", self)
open_file_action.setStatusTip("Open file")
open_file_action.triggered.connect(self.file_open)
file_menu.addAction(open_file_action)
file_toolbar.addAction(open_file_action)
save_file_action = QAction(QIcon(os.path.join('images', 'disk.png')), "Save", self)
save_file_action.setStatusTip("Save current page")
save_file_action.triggered.connect(self.file_save)
file_menu.addAction(save_file_action)
file_toolbar.addAction(save_file_action)
saveas_file_action = QAction(QIcon(os.path.join('images', 'disk--pencil.png')), "Save As...", self)
saveas_file_action.setStatusTip("Save current page to specified file")
saveas_file_action.triggered.connect(self.file_saveas)
file_menu.addAction(saveas_file_action)
file_toolbar.addAction(saveas_file_action)
print_action = QAction(QIcon(os.path.join('images', 'printer.png')), "Print...", self)
print_action.setStatusTip("Print current page")
print_action.triggered.connect(self.file_print)
file_menu.addAction(print_action)
file_toolbar.addAction(print_action)
edit_toolbar = QToolBar("Edit")
edit_toolbar.setIconSize(QSize(16, 16))
self.addToolBar(edit_toolbar)
edit_menu = self.menuBar().addMenu("&Edit")
undo_action = QAction(QIcon(os.path.join('images', 'arrow-curve-180-left.png')), "Undo", self)
undo_action.setStatusTip("Undo last change")
undo_action.triggered.connect(self.editor.undo)
edit_menu.addAction(undo_action)
redo_action = QAction(QIcon(os.path.join('images', 'arrow-curve.png')), "Redo", self)
redo_action.setStatusTip("Redo last change")
redo_action.triggered.connect(self.editor.redo)
edit_toolbar.addAction(redo_action)
edit_menu.addAction(redo_action)
edit_menu.addSeparator()
cut_action = QAction(QIcon(os.path.join('images', 'scissors.png')), "Cut", self)
cut_action.setStatusTip("Cut selected text")
cut_action.triggered.connect(self.editor.cut)
edit_toolbar.addAction(cut_action)
edit_menu.addAction(cut_action)
copy_action = QAction(QIcon(os.path.join('images', 'document-copy.png')), "Copy", self)
copy_action.setStatusTip("Copy selected text")
copy_action.triggered.connect(self.editor.copy)
edit_toolbar.addAction(copy_action)
edit_menu.addAction(copy_action)
paste_action = QAction(QIcon(os.path.join('images', 'clipboard-paste-document-text.png')), "Paste", self)
paste_action.setStatusTip("Paste from clipboard")
paste_action.triggered.connect(self.editor.paste)
edit_toolbar.addAction(paste_action)
edit_menu.addAction(paste_action)
select_action = QAction(QIcon(os.path.join('images', 'selection-input.png')), "Select all", self)
select_action.setStatusTip("Select all text")
select_action.triggered.connect(self.editor.selectAll)
edit_menu.addAction(select_action)
edit_menu.addSeparator()
wrap_action = QAction(QIcon(os.path.join('images', 'arrow-continue.png')), "Wrap text to window", self)
wrap_action.setStatusTip("Toggle wrap text to window")
wrap_action.setCheckable(True)
wrap_action.setChecked(True)
wrap_action.triggered.connect(self.edit_toggle_wrap)
edit_menu.addAction(wrap_action)
self.update_title()
self.show()
def dialog_critical(self, s):
dlg = QMessageBox(self)
dlg.setText(s)
dlg.setIcon(QMessageBox.Critical)
dlg.show()
def file_open(self):
path, _ = QFileDialog.getOpenFileName(self, "Open file", "", "Text documents (*.txt);All files (*.*)")
if path:
try:
with open(path, 'rU') as f:
text = f.read()
except Exception as e:
self.dialog_critical(str(e))
else:
self.path = path
self.editor.setPlainText(text)
self.update_title()
def file_save(self):
if self.path is None:
# If we do not have a path, we need to use Save As.
return self.file_saveas()
self._save_to_path(self.path)
def file_saveas(self):
path, _ = QFileDialog.getSaveFileName(self, "Save file", "", "Text documents (*.txt);All files (*.*)")
if not path:
# If dialog is cancelled, will return ''
return
self._save_to_path(path)
def _save_to_path(self, path):
text = self.editor.toPlainText()
try:
with open(path, 'w') as f:
f.write(text)
except Exception as e:
self.dialog_critical(str(e))
else:
self.path = path
self.update_title()
def file_print(self):
dlg = QPrintDialog()
if dlg.exec_():
self.editor.print_(dlg.printer())
def update_title(self):
self.setWindowTitle("%s - No2Pads" % (os.path.basename(self.path) if self.path else "Untitled"))
def edit_toggle_wrap(self):
self.editor.setLineWrapMode( 1 if self.editor.lineWrapMode() == 0 else 0 )
if __name__ == '__main__':
app = QApplication(sys.argv)
app.setApplicationName("No2Pads")
window = MainWindow()
app.exec_()