/usr/share/pyshared/chavier/gui.py is in python-pycha 0.6.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# This file is part of Chavier.
#
# Chavier is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Chavier is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Chavier. If not, see <http://www.gnu.org/licenses/>.
import pygtk
pygtk.require('2.0')
import gtk
from chavier.dialogs import (
TextInputDialog, PointDialog, OptionDialog, RandomGeneratorDialog,
AboutDialog, warning,
)
class GUI(object):
def __init__(self, app):
self.app = app
self.chart = None
self.surface = None
self.main_window = gtk.Window(gtk.WINDOW_TOPLEVEL)
self.main_window.connect('delete_event', self.delete_event)
self.main_window.connect('destroy', self.destroy)
self.main_window.set_default_size(640, 480)
self.main_window.set_title(u'Chavier')
vbox = gtk.VBox()
self.main_window.add(vbox)
vbox.show()
menubar, toolbar = self._create_ui_manager()
vbox.pack_start(menubar, False, False)
menubar.show()
vbox.pack_start(toolbar, False, False)
toolbar.show()
hpaned = gtk.HPaned()
vbox.pack_start(hpaned, True, True)
hpaned.show()
vpaned = gtk.VPaned()
hpaned.add1(vpaned)
vpaned.show()
block1 = self._create_sidebar_block(u'Data sets',
self._datasets_notebook_creator)
self._create_dataset("Dataset 1")
block1.set_size_request(-1, 200)
vpaned.add1(block1)
block1.show()
block2 = self._create_sidebar_block(u'Options',
self._options_treeview_creator)
vpaned.add2(block2)
block2.show()
self.drawing_area = gtk.DrawingArea()
self.drawing_area.connect('expose_event',
self.drawing_area_expose_event)
self.drawing_area.connect('size_allocate',
self.drawing_area_size_allocate_event)
hpaned.add2(self.drawing_area)
self.drawing_area.show()
self.main_window.show()
def _create_ui_manager(self):
self.uimanager = gtk.UIManager()
accel_group = self.uimanager.get_accel_group()
self.main_window.add_accel_group(accel_group)
action_group = gtk.ActionGroup('default')
action_group.add_actions([
('file', None, '_File', None, 'File', None),
('quit', gtk.STOCK_QUIT, None, None, 'Quit the program',
self.quit),
('edit', None, '_Edit', None, 'Edit', None),
('add_dataset', gtk.STOCK_ADD, '_Add dataset',
'<ctrl><alt>plus', 'Add another dataset', self.add_dataset),
('remove_dataset', gtk.STOCK_REMOVE, '_Remove dataset',
'<ctrl><alt>minus', 'Remove the current dataset',
self.remove_dataset),
('edit_dataset', gtk.STOCK_EDIT, '_Edit dataset name',
'<ctrl><alt>e', 'Edit the name of the current dataset',
self.edit_dataset),
('add_point', gtk.STOCK_ADD, 'Add _point', '<ctrl>plus',
'Add another point to the current dataset', self.add_point),
('remove_point', gtk.STOCK_REMOVE, 'Remove p_oint',
'<ctrl>minus',
'Remove the current point of the current dataset',
self.remove_point),
('edit_point', gtk.STOCK_EDIT, 'Edit po_int', '<ctrl>e',
'Edit the current point of the current dataset',
self.edit_point),
('edit_option', gtk.STOCK_EDIT, 'Edit op_tion', None,
'Edit the current option',
self.edit_option),
('view', None, '_View', None, 'View', None),
('refresh', gtk.STOCK_REFRESH, None, '<ctrl>r',
'Update the chart', self.refresh),
('tools', None, '_Tools', None, 'Tools', None),
('random-points', gtk.STOCK_EXECUTE, '_Generate random points',
'<ctrl>g', 'Generate random points',
self.generate_random_points),
('dump-chart-state', gtk.STOCK_CONVERT, '_Dump chart state',
'<ctrl>d', 'Dump internal chart variables',
self.dump_chart_state),
('help', None, '_Help', None, 'Help', None),
('about', gtk.STOCK_ABOUT, None, None, 'About this program',
self.about),
])
action_group.add_radio_actions([
('verticalbar', None, '_Vertical bars', None,
'Use vertical bars chart', self.app.VERTICAL_BAR_TYPE),
('horizontalbar', None, '_Horizontal bars', None,
'Use horizontal bars chart', self.app.HORIZONTAL_BAR_TYPE),
('line', None, '_Line', None,
'Use lines chart', self.app.LINE_TYPE),
('pie', None, '_Pie', None,
'Use pie chart', self.app.PIE_TYPE),
('scatter', None, '_Scatter', None,
'Use scatter chart', self.app.SCATTER_TYPE),
('stackedverticalbar', None, '_Stacked Vertical bars', None,
'Use stacked vertical bars chart',
self.app.STACKED_VERTICAL_BAR_TYPE),
('stackedhorizontalbar', None, '_Stacked Horizontal bars', None,
'Use stacked horizontal bars chart',
self.app.STACKED_HORIZONTAL_BAR_TYPE),
], self.app.VERTICAL_BAR_TYPE, self.on_chart_type_change)
self.uimanager.insert_action_group(action_group, -1)
ui = """<ui>
<menubar name="MenuBar">
<menu action="file">
<menuitem action="quit"/>
</menu>
<menu action="edit">
<menuitem action="add_dataset"/>
<menuitem action="remove_dataset"/>
<menuitem action="edit_dataset"/>
<separator />
<menuitem action="add_point"/>
<menuitem action="remove_point"/>
<menuitem action="edit_point"/>
<separator />
<menuitem action="edit_option"/>
</menu>
<menu action="view">
<menuitem action="refresh"/>
<separator />
<menuitem action="verticalbar"/>
<menuitem action="horizontalbar"/>
<menuitem action="stackedverticalbar"/>
<menuitem action="stackedhorizontalbar"/>
<menuitem action="line"/>
<menuitem action="pie"/>
<menuitem action="scatter"/>
</menu>
<menu action="tools">
<menuitem action="random-points"/>
<menuitem action="dump-chart-state"/>
</menu>
<menu action="help">
<menuitem action="about"/>
</menu>
</menubar>
<toolbar name="ToolBar">
<toolitem action="quit"/>
<separator />
<toolitem action="add_dataset"/>
<toolitem action="remove_dataset"/>
<separator />
<toolitem action="add_point"/>
<toolitem action="remove_point"/>
<separator />
<toolitem action="refresh"/>
</toolbar>
</ui>
"""
self.uimanager.add_ui_from_string(ui)
self.uimanager.ensure_update()
menubar = self.uimanager.get_widget('/MenuBar')
toolbar = self.uimanager.get_widget('/ToolBar')
return menubar, toolbar
def _create_sidebar_block(self, title, child_widget_creator):
box = gtk.VBox(spacing=6)
box.set_border_width(6)
label = gtk.Label()
label.set_markup(u'<span size="large" weight="bold">%s</span>' % title)
label.set_alignment(0.0, 0.5)
box.pack_start(label, False, False)
label.show()
child_widget = child_widget_creator()
box.pack_start(child_widget, True, True)
child_widget.show()
return box
def _datasets_notebook_creator(self):
self.datasets_notebook = gtk.Notebook()
self.datasets_notebook.set_scrollable(True)
return self.datasets_notebook
def _dataset_treeview_creator(self):
store = gtk.ListStore(float, float)
treeview = gtk.TreeView(store)
column1 = gtk.TreeViewColumn('x', gtk.CellRendererText(), text=0)
treeview.append_column(column1)
column2 = gtk.TreeViewColumn('y', gtk.CellRendererText(), text=1)
treeview.append_column(column2)
treeview.connect('row-activated', self.dataset_treeview_row_activated)
scrolled_window = gtk.ScrolledWindow()
scrolled_window.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC)
scrolled_window.add(treeview)
treeview.show()
return scrolled_window
def _options_treeview_creator(self):
self.options_store = gtk.TreeStore(str, str, object)
options = self.app.get_default_options()
self._fill_options_store(options, None, self.app.OPTIONS_TYPES)
self.options_treeview = gtk.TreeView(self.options_store)
column1 = gtk.TreeViewColumn('Name', gtk.CellRendererText(), text=0)
self.options_treeview.append_column(column1)
column2 = gtk.TreeViewColumn('Value', gtk.CellRendererText(), text=1)
self.options_treeview.append_column(column2)
self.options_treeview.expand_all()
self.options_treeview.connect('row-activated',
self.options_treeview_row_activated)
scrolled_window = gtk.ScrolledWindow()
scrolled_window.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC)
scrolled_window.add(self.options_treeview)
self.options_treeview.show()
return scrolled_window
def _fill_options_store(self, options, parent_node, types):
for name, value in options.items():
value_type = types[name]
if isinstance(value, dict):
current_parent = self.options_store.append(parent_node,
(name, None, None))
self._fill_options_store(value, current_parent, value_type)
else:
if value is not None:
value = str(value)
self.options_store.append(parent_node,
(name, value, value_type))
def _get_current_dataset_tab(self):
current_tab = self.datasets_notebook.get_current_page()
if current_tab != -1:
return self.datasets_notebook.get_nth_page(current_tab)
def _create_dataset(self, name):
scrolled_window = self._dataset_treeview_creator()
scrolled_window.show()
label = gtk.Label(name)
self.datasets_notebook.append_page(scrolled_window, label)
def _get_datasets(self):
datasets = []
n_pages = self.datasets_notebook.get_n_pages()
for i in range(n_pages):
tab = self.datasets_notebook.get_nth_page(i)
label = self.datasets_notebook.get_tab_label(tab)
name = label.get_label()
treeview = tab.get_children()[0]
model = treeview.get_model()
points = [(x, y) for x, y in model]
if len(points) > 0:
datasets.append((name, points))
return datasets
def _get_chart_type(self):
action_group = self.uimanager.get_action_groups()[0]
action = action_group.get_action('verticalbar')
return action.get_current_value()
def _get_options(self, iter):
options = {}
while iter is not None:
name, value, value_type = self.options_store.get(iter, 0, 1, 2)
if value_type is None:
child = self.options_store.iter_children(iter)
options[name] = self._get_options(child)
else:
if value is not None:
converter = str_converters[value_type]
value = converter(value)
options[name] = value
iter = self.options_store.iter_next(iter)
return options
def _edit_point_internal(self, model, iter):
x, y = model.get(iter, 0, 1)
dialog = PointDialog(self.main_window, x, y)
response = dialog.run()
if response == gtk.RESPONSE_ACCEPT:
x, y = dialog.get_point()
model.set(iter, 0, x, 1, y)
self.refresh()
dialog.destroy()
def _edit_option_internal(self, model, iter):
name, value, value_type = model.get(iter, 0, 1, 2)
parents = []
parent = model.iter_parent(iter)
while parent is not None:
parents.append(model.get_value(parent, 0))
parent = model.iter_parent(parent)
parents.reverse()
parents.append(name)
label = u'.'.join(parents)
dialog = OptionDialog(self.main_window, label, value, value_type)
response = dialog.run()
if response == gtk.RESPONSE_ACCEPT:
new_value = dialog.get_value()
if new_value == "":
new_value = None
model.set_value(iter, 1, new_value)
self.refresh()
dialog.destroy()
def delete_event(self, widget, event, data=None):
return False
def destroy(self, widget, data=None):
gtk.main_quit()
def drawing_area_expose_event(self, widget, event, data=None):
if self.chart is None:
return
cr = widget.window.cairo_create()
cr.rectangle(event.area.x, event.area.y,
event.area.width, event.area.height)
cr.clip()
cr.set_source_surface(self.chart.surface, 0, 0)
cr.paint()
def drawing_area_size_allocate_event(self, widget, event, data=None):
if self.chart is not None:
self.refresh()
def on_chart_type_change(self, action, current, data=None):
if self.chart is not None:
self.refresh()
def dataset_treeview_row_activated(self, treeview, path, view_column):
model = treeview.get_model()
iter = model.get_iter(path)
self._edit_point_internal(model, iter)
def options_treeview_row_activated(self, treeview, path, view_column):
model = treeview.get_model()
iter = model.get_iter(path)
self._edit_option_internal(model, iter)
def quit(self, action):
self.main_window.destroy()
def add_dataset(self, action):
n_pages = self.datasets_notebook.get_n_pages()
suggested_name = u'Dataset %d' % (n_pages + 1)
dialog = TextInputDialog(self.main_window, suggested_name)
response = dialog.run()
if response == gtk.RESPONSE_ACCEPT:
name = dialog.get_name()
self._create_dataset(name)
self.datasets_notebook.set_current_page(n_pages)
dialog.destroy()
def remove_dataset(self, action):
current_tab = self.datasets_notebook.get_current_page()
assert current_tab != -1
self.datasets_notebook.remove_page(current_tab)
def edit_dataset(self, action):
tab = self._get_current_dataset_tab()
assert tab is not None
label = self.datasets_notebook.get_tab_label(tab)
name = label.get_label()
dialog = TextInputDialog(self.main_window, name)
response = dialog.run()
if response == gtk.RESPONSE_ACCEPT:
name = dialog.get_name()
label.set_label(name)
dialog.destroy()
def add_point(self, action):
tab = self._get_current_dataset_tab()
assert tab is not None
treeview = tab.get_children()[0]
model = treeview.get_model()
dialog = PointDialog(self.main_window, len(model) * 1.0, 0.0)
response = dialog.run()
if response == gtk.RESPONSE_ACCEPT:
x, y = dialog.get_point()
model.append((x, y))
self.refresh()
dialog.destroy()
def remove_point(self, action):
tab = self._get_current_dataset_tab()
assert tab is not None
treeview = tab.get_children()[0]
selection = treeview.get_selection()
model, selected = selection.get_selected()
if selected is None:
warning(self.main_window, "You must select the point to remove")
return
model.remove(selected)
self.refresh()
def edit_point(self, action):
tab = self._get_current_dataset_tab()
assert tab is not None
treeview = tab.get_children()[0]
selection = treeview.get_selection()
model, selected = selection.get_selected()
if selected is None:
warning(self.main_window, "You must select the point to edit")
return
self._edit_point_internal(model, selected)
def edit_option(self, action):
selection = self.options_treeview.get_selection()
model, selected = selection.get_selected()
if selected is None:
warning(self.main_window, "You must select the option to edit")
return
self._edit_option_internal(model, selected)
def refresh(self, action=None):
datasets = self._get_datasets()
if datasets:
root = self.options_store.get_iter_first()
options = self._get_options(root)
chart_type = self._get_chart_type()
alloc = self.drawing_area.get_allocation()
self.chart = self.app.get_chart(datasets, options, chart_type,
alloc.width, alloc.height)
self.drawing_area.queue_draw()
else:
self.chart = None
def generate_random_points(self, action=None):
tab = self._get_current_dataset_tab()
assert tab is not None
treeview = tab.get_children()[0]
model = treeview.get_model()
dialog = RandomGeneratorDialog(self.main_window)
response = dialog.run()
if response == gtk.RESPONSE_ACCEPT:
points = dialog.generate_points()
for point in points:
model.append(point)
self.refresh()
dialog.destroy()
def dump_chart_state(self, action=None):
if self.chart is None:
return
alloc = self.drawing_area.get_allocation()
print 'CHART STATE'
print '-' * 70
print 'surface: %d x %d' % (alloc.width, alloc.height)
print 'area :', self.chart.area
print
print 'minxval:', self.chart.minxval
print 'maxxval:', self.chart.maxxval
print 'xrange :', self.chart.xrange
print
print 'minyval:', self.chart.minyval
print 'maxyval:', self.chart.maxyval
print 'yrange :', self.chart.yrange
def about(self, action=None):
dialog = AboutDialog(self.main_window)
dialog.run()
dialog.destroy()
def run(self):
gtk.main()
def str2bool(str):
if str.lower() == "true":
return True
else:
return False
str_converters = {
str: str,
int: int,
float: float,
unicode: unicode,
bool: str2bool,
}
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