def _do_draw(self, context, rect, mode, maximum_value, value_label_size, label_size):
if maximum_value == 0:
return
exp = int(math.log10(maximum_value))
if exp:
n = maximum_value / 10 ** exp
else:
n = maximum_value / 10
context.set_antialias(cairo.ANTIALIAS_NONE)
set_context_line_style(context, self._line_style)
labels = []
if mode == MODE_VERTICAL:
delta = (rect.height - value_label_size - label_size) / n
if self._show_values:
max_label_size = 0
for i in range(0, int(n + 1)):
y = rect.y + rect.height - i * delta - label_size
value = maximum_value * float(i) / n
value_label = label.Label((rect.x, y), str(value))
max_label_size = max(max_label_size, value_label.get_calculated_dimensions(context, rect)[0])
labels.append(value_label)
max_label_size += 3
rect = gtk.gdk.Rectangle(int(rect.x + max_label_size), rect.y, int(rect.width - max_label_size), rect.height)
for i in range(0, len(labels)):
y = rect.y + rect.height - i * delta - label_size
value_label = labels[i]
value_label.set_position((rect.x - 3, y))
value_label.set_anchor(label.ANCHOR_RIGHT_CENTER)
value_label.draw(context, rect)
context.fill()
elif mode == MODE_HORIZONTAL:
delta = (rect.width - value_label_size - label_size) / n
if self._show_values:
max_label_size = 0
for i in range(0, int(n + 1)):
x = rect.x + i * delta + label_size
value = maximum_value * float(i) / n
value_label = label.Label((x, rect.y + rect.height), str(value))
max_label_size = max(max_label_size, value_label.get_calculated_dimensions(context, rect)[1])
labels.append(value_label)
max_label_size += 3
rect = gtk.gdk.Rectangle(rect.x, rect.y, rect.width, int(rect.height - max_label_size))
for i in range(0, len(labels)):
x = rect.x + i * delta + label_size
value_label = labels[i]
value_label.set_position((x, rect.y + rect.height + 3))
value_label.set_anchor(label.ANCHOR_TOP_CENTER)
value_label.draw(context, rect)
context.fill()
for i in range(0, int(n + 1)):
x = rect.x + i * delta + label_size
context.set_source_rgb(*color_gdk_to_cairo(self._color))
context.move_to(x, rect.y)
context.rel_line_to(0, rect.height)
context.stroke()
rect = gtk.gdk.Rectangle(rect.x, rect.y + self._padding, rect.width, rect.height - 2 * self._padding)
return rect
def __init__(self, name, title=""):
ChartObject.__init__(self)
#private properties:
self._group_label_object = label.Label((0, 0), title)
#gobject properties:
self._bars = []
self._name = name
self._title = title
self._bar_padding = 2
def __init__(self, name, value, title=""):
chart.Area.__init__(self, name, value, title)
self._label_object = label.Label((0, 0), title)
self._value_label_object = label.Label((0, 0), "")
self._corner_radius = 0
def __init__(self, name, value, title=""):
chart.Area.__init__(self, name, value, title)
self._label_object = label.Label((0, 0), title)