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"""Incremental demo for wx support of tasks.
Create and delete task panes
"""
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,
)
from pyface.tasks.action.api import DockPaneToggleGroup, TaskAction
from traits.api import Property, Instance
class ExamplePane(DockPane):
""" A simple file browser pane.
"""
# TaskPane interface ---------------------------------------------------
id = "steps.example_pane"
name = "Example Pane"
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)
menu_bar = SMenuBar(
SMenu(
TaskAction(name="New", method="new", accelerator="Ctrl+N"),
id="File",
name="&File",
),
SMenu(DockPaneToggleGroup(), id="View", name="&View"),
)
tool_bars = [
SToolBar(
TaskAction(
method="new",
tooltip="New file",
image=ImageResource("document_new"),
),
image_size=(32, 32),
)
]
# ------------------------------------------------------------------------
# 'Task' interface.
# ------------------------------------------------------------------------
def _default_layout_default(self):
return TaskLayout(top=PaneItem("steps.example_pane"))
def create_central_pane(self):
""" Create the central pane: the script editor.
"""
self.editor_area = EditorAreaPane()
return self.editor_area
def create_dock_panes(self):
""" Create the file browser and connect to its double click event.
"""
pane = ExamplePane()
return [pane]
# ------------------------------------------------------------------------
# '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
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.
task = ExampleTask()
window = TaskWindow(size=(800, 600))
window.add_task(task)
# Show the window.
window.open()
# Start the GUI event loop.
gui.start_event_loop()
if __name__ == "__main__":
import sys
main(sys.argv)
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