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Viewing changes to annotate/spanselector.py

  • Committer: Jelmer Vernooij
  • Date: 2008-07-17 11:51:03 UTC
  • Revision ID: jelmer@samba.org-20080717115103-djh5sb0pvpse2zkb
Add note about glade.

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annotate/spanselector.py
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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from gi.repository import GObject
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from gi.repository import Gtk
 
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import pygtk
 
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pygtk.require("2.0")
 
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import gobject
 
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import gtk
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(
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) = range(4)
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class SpanSelector(Gtk.HBox):
 
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class SpanSelector(gtk.HBox):
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    """Encapsulates creation and functionality of widgets used for changing
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    highlight spans.
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    Note that calling any activate_* methods will emit "span-changed".
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    """
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    max_custom_spans = 4
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    custom_spans = []
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    last_selected = None
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    def __init__(self, homogeneous=False, spacing=6):
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        GObject.GObject.__init__(self, homogeneous, spacing)
 
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        gtk.HBox.__init__(self, homogeneous, spacing)
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        self.model = self._create_model()
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        self.combo = self._create_combobox(self.model)
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        self.entry = self._create_custom_entry()
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        label = Gtk.Label(label="Highlighting spans:")
 
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        label = gtk.Label("Highlighting spans:")
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        label.show()
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        self.pack_start(label, False, True, True, 0)
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        self.pack_start(self.combo, False, False, True, 0)
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        self.pack_start(self.entry, False, False, True, 0)
 
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        self.pack_start(label, expand=False, fill=True)
 
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        self.pack_start(self.combo, expand=False, fill=False)
 
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        self.pack_start(self.entry, expand=False, fill=False)
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    def set_to_oldest_span(self, span):
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        """Set the span associated with the "to Oldest Revision" entry."""
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        self.max_custom_spans = n
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    def activate(self, iter):
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        """Activate the row pointed to by Gtk.TreeIter iter."""
 
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        """Activate the row pointed to by gtk.TreeIter iter."""
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        index = self._get_index_from_iter(iter)
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        self.combo.set_active(index)
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            self.emit("span-changed", model.get_value(iter, SPAN_DAYS_COL))
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    def _activate_custom_span_cb(self, w):
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        self.entry.hide()
 
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        self.entry.hide_all()
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        self.combo.show()
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        span = float(w.get_text())
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        if span == 0:
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            # FIXME this works as "cancel", returning to the previous span,
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            # but it emits "span-changed", which isn't necessary.
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            self.custom_iter = self.model.insert_after(self.custom_iter,
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                                                       self.separator)
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            self.custom_iter_top = self.custom_iter.copy()
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        if len(self.custom_spans) == self.max_custom_spans:
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            self.custom_spans.pop(0)
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            self.model.remove(self.model.iter_next(self.custom_iter_top))
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        self.custom_spans.append(span)
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        self.custom_iter = self.model.insert_after(
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            self.custom_iter, [span, "%.2f Days" % span, False, False])
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    def _create_model(self):
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        # [span in days, span as string, row is seperator?, row is select
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        # default?]
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        m = Gtk.ListStore(GObject.TYPE_FLOAT,
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                          GObject.TYPE_STRING,
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                          GObject.TYPE_BOOLEAN,
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                          GObject.TYPE_BOOLEAN)
 
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        m = gtk.ListStore(gobject.TYPE_FLOAT,
 
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                          gobject.TYPE_STRING,
 
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                          gobject.TYPE_BOOLEAN,
 
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                          gobject.TYPE_BOOLEAN)
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        self.separator = [0., "", True, False]
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        self.oldest_iter = m.append([0., "to Oldest Revision", False, False])
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        self.newest_iter = m.append([0., "Newest to Oldest", False, False])
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        m.append(self.separator)
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        return m
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    def _create_combobox(self, model):
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        cb = Gtk.ComboBox(model)
 
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        cb = gtk.ComboBox(model)
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        cb.set_row_separator_func(
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            lambda m, i: m.get_value(i, SPAN_IS_SEPARATOR_COL))
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        cell = Gtk.CellRendererText()
 
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        cell = gtk.CellRendererText()
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        cb.pack_start(cell, False)
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        cb.add_attribute(cell, "text", SPAN_STR_COL)
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        cb.connect("changed", self._combo_changed_cb)
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        return cb
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    def _create_custom_entry(self):
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        entry = Gtk.HBox(False, 6)
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        spin = Gtk.SpinButton(digits=2)
 
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        entry = gtk.HBox(False, 6)
 
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        spin = gtk.SpinButton(digits=2)
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        spin.set_numeric(True)
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        spin.set_increments(1., 10.)
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        spin.set_range(0., 100 * 365) # I presume 100 years is sufficient
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        spin.connect("activate", self._activate_custom_span_cb)
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        spin.connect("show", lambda w: w.grab_focus())
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        label = Gtk.Label(label="Days")
 
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        label = gtk.Label("Days")
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        entry.pack_start(spin, False, False, True, 0)
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        entry.pack_start(label, False, False, True, 0)
 
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        entry.pack_start(spin, expand=False, fill=False)
 
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        entry.pack_start(label, expand=False, fill=False)
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        return entry
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Callback signature: def callback(SpanSelector, span, [user_param, ...])
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"""
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GObject.signal_new("span-changed", SpanSelector,
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                   GObject.SignalFlags.RUN_LAST,
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                   None,
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                   (GObject.TYPE_FLOAT,))
 
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gobject.signal_new("span-changed", SpanSelector,
 
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                   gobject.SIGNAL_RUN_LAST,
 
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                   gobject.TYPE_NONE,
 
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                   (gobject.TYPE_FLOAT,))
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"""The "custom-span-added" signal is emitted after a custom span has been
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added, but before it has been selected.
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Callback signature: def callback(SpanSelector, span, [user_param, ...])
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"""
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GObject.signal_new("custom-span-added", SpanSelector,
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                   GObject.SignalFlags.RUN_LAST,
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                   None,
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                   (GObject.TYPE_FLOAT,))
 
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gobject.signal_new("custom-span-added", SpanSelector,
 
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                   gobject.SIGNAL_RUN_LAST,
 
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                   gobject.TYPE_NONE,
 
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                   (gobject.TYPE_FLOAT,))
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