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# Copyright (C) 2009, Aleksey Lim
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import gtk
import math
import hippo
import gobject
from sugar.graphics import style
from sugar.graphics.roundbox import CanvasRoundBox
from jarabe.journal.smoothtable import SmoothTable
COLOR_BACKGROUND = style.COLOR_WHITE
COLOR_SELECTED = style.COLOR_TEXT_FIELD_GREY
class TableCell:
def __init__(self):
self.row = None
self.table = None
def do_fill_in(self):
pass
class TableView(SmoothTable):
def __init__(self, cell_class, rows, columns):
SmoothTable.__init__(self, rows, columns,
lambda: self._create_cell(cell_class), self._do_fill_in)
self._model = None
self._hover_selection = False
self._selected_cell = None
self._row_changed_id = None
def get_cursor(self):
return (self.frame[0], )
def set_cursor(self, cursor):
self.goto(cursor)
def get_model(self):
return self._model
def set_model(self, model):
if self._model == model:
return
if self._model is not None and self._row_changed_id is not None:
self._model.disconnect(self._row_changed_id)
self._model = model
if model is not None:
self._row_changed_id = \
self._model.connect('row-changed', self.__row_changed_cb)
if model is not None:
rows = math.ceil(float(model.iter_n_children(None)) / self.columns)
self.bin_rows = int(rows)
model = gobject.property(type=object,
getter=get_model, setter=set_model)
def get_hover_selection(self):
return self._hover_selection
def set_hover_selection(self, value):
self._hover_selection = value
hover_selection = gobject.property(type=object,
getter=get_hover_selection, setter=set_hover_selection)
def get_visible_range(self):
return ((self.frame[0], ), (self.frame[1], ))
def _create_cell(self, cell_class):
canvas = hippo.Canvas()
canvas.show()
canvas.modify_bg(gtk.STATE_NORMAL, COLOR_BACKGROUND.get_gdk_color())
sel_box = CanvasRoundBox()
sel_box.props.border_color = COLOR_BACKGROUND.get_int()
canvas.set_root(sel_box)
cell = cell_class()
cell.table = self
sel_box.append(cell, hippo.PACK_EXPAND)
canvas.connect('enter-notify-event',
self.__enter_notify_event_cb, cell)
canvas.connect('leave-notify-event', self.__leave_notify_event_cb)
canvas.table_view_cell_sel_box = sel_box
canvas.table_view_cell = cell
return canvas
def _do_fill_in(self, canvas, y, x, prepared_row=None):
cell = canvas.table_view_cell
sel_box = canvas.table_view_cell_sel_box
if self._selected_cell == cell and cell.get_visible():
bg_color = COLOR_SELECTED
else:
bg_color = COLOR_BACKGROUND
sel_box.props.background_color = bg_color.get_int()
cell.row = prepared_row
if cell.row is None:
cell_num = y * self.columns + x
if cell_num < self._model.iter_n_children(None):
row = self._model.get_row((cell_num, ), self.frame)
if row is not None and row != False:
cell.row = row
if cell.row is None:
cell.set_visible(False)
else:
cell.do_fill_in()
cell.set_visible(True)
def __enter_notify_event_cb(self, canvas, event, cell):
if not self.hover_selection:
return
if cell.get_visible():
sel_box = canvas.table_view_cell_sel_box
sel_box.props.background_color = COLOR_SELECTED.get_int()
self._selected_cell = cell
def __leave_notify_event_cb(self, canvas, event):
if not self.hover_selection:
return
sel_box = canvas.table_view_cell_sel_box
sel_box.props.background_color = COLOR_BACKGROUND.get_int()
self._selected_cell = None
def __row_changed_cb(self, model, path, iterator):
y = path[0] / self.columns
x = path[0] % self.columns
canvas = self.get_visible_cell(y, x)
if canvas is None:
return
row = self._model.get_row(path)
self._do_fill_in(canvas, y, x, row)
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