return frame
-class ItemSpinBox (gtk.HBox):
- """Control for selecting one of a small number of text items.
-
- Somewhat like a `gtk.SpinButton`, but with a textual ``(value,
- display_value)`` list model, and with the buttons positioned at either
- end of the central label. Hopefully nothing too unusual.
-
- Intended as an alternative to `gtk.ComboBox` which doesn't involve any
- pointer grab breaking, which makes it more useful for dropdown panels.
- """
-
- ARROW_SHADOW_TYPE = gtk.SHADOW_OUT
-
- def __init__(self, model, changed_cb, value=None):
- gtk.HBox.__init__(self)
- self._left_button = borderless_button(tooltip=_("Previous item"))
- self._left_button.add(gtk.Arrow(gtk.ARROW_LEFT, self.ARROW_SHADOW_TYPE))
- self._left_button.connect("clicked", self._spin_button_clicked, -1)
- self._right_button = borderless_button(tooltip=_("Next item"))
- self._right_button.add(gtk.Arrow(gtk.ARROW_RIGHT, self.ARROW_SHADOW_TYPE))
- self._right_button.connect("clicked", self._spin_button_clicked, 1)
- self._label = gtk.Label()
- self.pack_start(self._left_button, False, False)
- self.pack_start(self._label, True, True)
- self.pack_start(self._right_button, False, False)
- self._changed_cb = changed_cb
- self._model = None
- self._model_index = None
- self.set_model(model, value)
-
- def set_model(self, model, value=None):
- """Set the model.
-
- The `model` argument is either `None`, or a list of pairs of the form
- ``[(value, text), ...]``. The ``value``s must be unique and testable by
- equality. The ``text`` values are what is displayed in the label area
- of the `ItemSpinBox` widget.
- """
- old_index = self._model_index
- old_value = None
- old_text = None
- if old_index is not None:
- old_value, old_text = self.model[old_index]
-
- self._model = model
- self._model_index = None
- text = None
- if value is None:
- value = old_value
- self.set_value(value)
-
- model_valid = self._is_model_valid()
- buttons_sensitive = model_valid and len(self._model) > 1
- self._left_button.set_sensitive(buttons_sensitive)
- self._right_button.set_sensitive(buttons_sensitive)
-
-
- def _is_model_valid(self):
- if self._model is None: return False
- if not self._model: return False
- if self._model_index is None: return False
- if self._model_index < 0: return False
- if self._model_index >= len(self._model): return False
- return True
-
-
- def _update_label(self):
- if not self._is_model_valid():
- text = _("(Nothing to show)")
- self._label.set_sensitive(False)
- else:
- value, text = self._model[self._model_index]
- self._label.set_sensitive(True)
- self._label.set_text(text)
-
-
- def get_value(self):
- if not self._is_model_valid():
- return None
- value, text = self._model[self._model_index]
- return value
-
-
- def set_value(self, value, notify=False):
- new_value = None
- if not self._model:
- self._model_index = None
- self._update_label()
- new_value = None
- else:
- found = False
- for i, entry in enumerate(self._model):
- v, t = entry
- if v == value:
- self._model_index = i
- self._update_label()
- new_value = v
- found = True
- break
- if not found:
- self._model_index = 0
- self._update_label()
- new_value = self._model[0][0]
- if notify:
- self._changed_cb(new_value)
-
-
- def _spin_button_clicked(self, widget, delta):
- if not self._is_model_valid():
- return
- i = self._model_index + delta
- while i < 0:
- i += len(self._model)
- i %= len(self._model)
- self._model_index = i
- self._update_label()
- self._changed_cb(self.get_value())
-
-
def find_widgets(widget, predicate):
"""Finds widgets in a container's tree by predicate.
"""
dialogs.change_current_color_detailed(self.app)
current.connect("button-press-event", on_button_press)
prev.connect("button-press-event", on_button_press)
-
-
-
-
-if __name__ == '__main__':
- win = gtk.Window()
- win.set_title("misc widgets")
- win.connect("destroy", gtk.main_quit)
-
- outer_vbox = gtk.VBox()
- outer_vbox.set_border_width(SPACING)
- win.add(outer_vbox)
-
- frame = section_frame("Item spin buttons")
- outer_vbox.pack_start(frame, True, True)
- vbox = gtk.VBox()
- vbox.set_border_width(SPACING)
- vbox.set_spacing(SPACING_TIGHT)
- frame.add(vbox)
-
- def changed_cb(new_value):
- print "SSB changed:", new_value
-
- sb0 = ItemSpinBox(None, changed_cb)
- vbox.pack_start(sb0, False, False)
-
- model1 = list(enumerate("Apple Orange Pear Banana Lychee Herring Guava".split()))
- sb1 = ItemSpinBox(model1, changed_cb)
- vbox.pack_start(sb1, False, False)
-
- sb1a = ItemSpinBox(model1, changed_cb, 4)
- vbox.pack_start(sb1a, False, False)
-
- model2 = [(0, "Single value")]
- sb2 = ItemSpinBox(model2, changed_cb)
- vbox.pack_start(sb2, False, False)
-
- #win.set_size_request(200, 150)
-
- win.show_all()
- gtk.main()
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