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
|
"""Incremental demo for wx support of tasks.
Multiple tasks
Note that naively subclassing SecondTask from ExampleTask, it initially used
the same menu_bar and tool_bars traits from ExampleTask. This caused the
incorrect tying of the controls to SecondTask because the class attributes
were shared between both classes.
"""
from pyface.action.schema.api import SMenu, SMenuBar, SToolBar
from pyface.api import (
GUI,
ConfirmationDialog,
FileDialog,
ImageResource,
YES,
OK,
CANCEL,
)
from pyface.tasks.api import (
Task,
TaskWindow,
TaskLayout,
PaneItem,
IEditor,
IEditorAreaPane,
EditorAreaPane,
Editor,
DockPane,
HSplitter,
VSplitter,
)
from pyface.tasks.action.api import (
DockPaneToggleGroup,
TaskAction,
TaskToggleGroup,
)
from traits.api import Property, Instance
class ExampleTask(Task):
""" A simple task for opening a blank editor.
"""
# Task interface -------------------------------------------------------
id = "example.example_task"
name = "Multi-Tab Editor"
active_editor = Property(
Instance(IEditor), observe="editor_area.active_editor"
)
editor_area = Instance(IEditorAreaPane)
tool_bars = [
SToolBar(
TaskAction(
method="new",
tooltip="New file",
image=ImageResource("document_new"),
),
image_size=(32, 32),
)
]
# ------------------------------------------------------------------------
# 'Task' interface.
# ------------------------------------------------------------------------
def _menu_bar_default(self):
return SMenuBar(
SMenu(
TaskAction(name="New", method="new", accelerator="Ctrl+N"),
id="File",
name="&File",
),
SMenu(
DockPaneToggleGroup(),
TaskToggleGroup(),
id="View",
name="&View",
),
)
def create_central_pane(self):
""" Create the central pane: the script editor.
"""
self.editor_area = EditorAreaPane()
return self.editor_area
# ------------------------------------------------------------------------
# 'ExampleTask' interface.
# ------------------------------------------------------------------------
def new(self):
""" Opens a new empty window
"""
editor = Editor()
self.editor_area.add_editor(editor)
self.editor_area.activate_editor(editor)
self.activated()
# Trait property getter/setters ----------------------------------------
def _get_active_editor(self):
if self.editor_area is not None:
return self.editor_area.active_editor
return None
class SecondTask(ExampleTask):
""" A simple task for opening a blank editor.
"""
# Task interface -------------------------------------------------------
id = "example.second_task"
name = "Second Multi-Tab Editor"
tool_bars = [
SToolBar(
TaskAction(
method="new",
tooltip="New file",
image=ImageResource("document_new"),
),
image_size=(32, 32),
)
]
# ------------------------------------------------------------------------
# 'Task' interface.
# ------------------------------------------------------------------------
def _menu_bar_default(self):
return SMenuBar(
SMenu(
TaskAction(name="New", method="new", accelerator="Ctrl+N"),
id="File",
name="&File",
),
SMenu(
DockPaneToggleGroup(),
TaskToggleGroup(),
id="View",
name="&View",
),
SMenu(
TaskAction(name="Item 1", method="item1"),
TaskAction(name="Item 2", method="item2"),
id="Task2",
name="&Task2",
),
)
def main(argv):
""" A simple example of using Tasks.
"""
# Create the GUI (this does NOT start the GUI event loop).
gui = GUI()
# Create a Task and add it to a TaskWindow.
task1 = ExampleTask()
window = TaskWindow(size=(800, 600))
window.add_task(task1)
window.open()
task2 = SecondTask()
window = TaskWindow(size=(800, 600))
window.add_task(task2)
window.open()
# Start the GUI event loop.
gui.start_event_loop()
if __name__ == "__main__":
import sys
main(sys.argv)
|
