def _compute_margin(self):
"""Compute graph margins from set texts"""
self._legend_at_left_width = 0
for series_group in (self.series, self.secondary_series):
if self.show_legend and series_group:
h, w = get_texts_box(
map(lambda x: truncate(x, self.truncate_legend or 15),
cut(series_group, 'title')),
self.legend_font_size)
if self.legend_at_bottom:
h_max = max(h, self.legend_box_size)
cols = (self._order // self.legend_at_bottom_columns
if self.legend_at_bottom_columns
else ceil(sqrt(self._order)) or 1)
self.margin.bottom += self.spacing + h_max * round(
cols - 1) * 1.5 + h_max
else:
if series_group is self.series:
legend_width = self.spacing + w + self.legend_box_size
self.margin.left += legend_width
self._legend_at_left_width += legend_width
else:
self.margin.right += (
self.spacing + w + self.legend_box_size)
self._x_labels_height = 0
if (self._x_labels or self._x_2nd_labels) and self.show_x_labels:
for xlabels in (self._x_labels, self._x_2nd_labels):
if xlabels:
h, w = get_texts_box(
map(lambda x: truncate(x, self.truncate_label or 25),
cut(xlabels)),
self.label_font_size)
self._x_labels_height = self.spacing + max(
w * sin(rad(self.x_label_rotation)), h)
if xlabels is self._x_labels:
self.margin.bottom += self._x_labels_height
else:
self.margin.top += self._x_labels_height
if self.x_label_rotation:
self.margin.right = max(
w * cos(rad(self.x_label_rotation)),
self.margin.right)
if self.show_y_labels:
for ylabels in (self._y_labels, self._y_2nd_labels):
if ylabels:
h, w = get_texts_box(
cut(ylabels), self.label_font_size)
if ylabels is self._y_labels:
self.margin.left += self.spacing + max(
w * cos(rad(self.y_label_rotation)), h)
else:
self.margin.right += self.spacing + max(
w * cos(rad(self.y_label_rotation)), h)
self.title = split_title(
self.title, self.width, self.title_font_size)
if self.title:
h, _ = get_text_box(self.title[0], self.title_font_size)
self.margin.top += len(self.title) * (self.spacing + h)
self.x_title = split_title(
self.x_title, self.width - self.margin.x, self.title_font_size)
self._x_title_height = 0
if self.x_title:
h, _ = get_text_box(self.x_title[0], self.title_font_size)
height = len(self.x_title) * (self.spacing + h)
self.margin.bottom += height
self._x_title_height = height + self.spacing
self.y_title = split_title(
self.y_title, self.height - self.margin.y, self.title_font_size)
self._y_title_height = 0
if self.y_title:
h, _ = get_text_box(self.y_title[0], self.title_font_size)
height = len(self.y_title) * (self.spacing + h)
self.margin.left += height
self._y_title_height = height + self.spacing
def _compute_margin(self):
"""Compute graph margins from set texts"""
self._legend_at_left_width = 0
for series_group in (self.series, self.secondary_series):
if self.show_legend and series_group:
h, w = get_texts_box(
map(lambda x: truncate(x, self.truncate_legend or 15),
[serie.title['title']
if isinstance(serie.title, dict)
else serie.title or '' for serie in series_group]),
self.style.legend_font_size)
if self.legend_at_bottom:
h_max = max(h, self.legend_box_size)
cols = (self._order // self.legend_at_bottom_columns
if self.legend_at_bottom_columns
else ceil(sqrt(self._order)) or 1)
self.margin_box.bottom += self.spacing + h_max * round(
cols - 1) * 1.5 + h_max
else:
if series_group is self.series:
legend_width = self.spacing + w + self.legend_box_size
self.margin_box.left += legend_width
self._legend_at_left_width += legend_width
else:
self.margin_box.right += (
self.spacing + w + self.legend_box_size)
self._x_labels_height = 0
if (self._x_labels or self._x_2nd_labels) and self.show_x_labels:
for xlabels in (self._x_labels, self._x_2nd_labels):
if xlabels:
h, w = get_texts_box(
map(lambda x: truncate(x, self.truncate_label or 25),
cut(xlabels)),
self.style.label_font_size)
self._x_labels_height = self.spacing + max(
w * abs(sin(rad(self.x_label_rotation))), h)
if xlabels is self._x_labels:
self.margin_box.bottom += self._x_labels_height
else:
self.margin_box.top += self._x_labels_height
if self.x_label_rotation:
if self.x_label_rotation % 180 < 90:
self.margin_box.right = max(
w * abs(cos(rad(self.x_label_rotation))),
self.margin_box.right)
else:
self.margin_box.left = max(
w * abs(cos(rad(self.x_label_rotation))),
self.margin_box.left)
if self.show_y_labels:
for ylabels in (self._y_labels, self._y_2nd_labels):
if ylabels:
h, w = get_texts_box(
cut(ylabels), self.style.label_font_size)
if ylabels is self._y_labels:
self.margin_box.left += self.spacing + max(
w * abs(cos(rad(self.y_label_rotation))), h)
else:
self.margin_box.right += self.spacing + max(
w * abs(cos(rad(self.y_label_rotation))), h)
self._title = split_title(
self.title, self.width, self.style.title_font_size)
if self.title:
h, _ = get_text_box(self._title[0], self.style.title_font_size)
self.margin_box.top += len(self._title) * (self.spacing + h)
self._x_title = split_title(
self.x_title, self.width - self.margin_box.x,
self.style.title_font_size)
self._x_title_height = 0
if self._x_title:
h, _ = get_text_box(self._x_title[0], self.style.title_font_size)
height = len(self._x_title) * (self.spacing + h)
self.margin_box.bottom += height
self._x_title_height = height + self.spacing
self._y_title = split_title(
self.y_title, self.height - self.margin_box.y,
self.style.title_font_size)
self._y_title_height = 0
if self._y_title:
h, _ = get_text_box(self._y_title[0], self.style.title_font_size)
height = len(self._y_title) * (self.spacing + h)
self.margin_box.left += height
self._y_title_height = height + self.spacing
# Inner margin
if self.print_values_position == 'top':
gh = self.height - self.margin_box.y
alpha = 1.1 * (self.style.value_font_size / gh) * self._box.height
if self._max > 0:
self._box.ymax += alpha
if self._min < 0:
self._box.ymin -= alpha
def _compute_margin(self):
"""Compute graph margins from set texts"""
self._legend_at_left_width = 0
for series_group in (self.series, self.secondary_series):
if self.show_legend and series_group:
h, w = get_texts_box(
map(
lambda x: truncate(x, self.truncate_legend or 15), [
serie.title['title']
if isinstance(serie.title, dict) else serie.title
or '' for serie in series_group
]
), self.style.legend_font_size
)
if self.legend_at_bottom:
h_max = max(h, self.legend_box_size)
cols = (
self._order // self.legend_at_bottom_columns
if self.legend_at_bottom_columns else
ceil(sqrt(self._order)) or 1
)
self.margin_box.bottom += self.spacing + h_max * round(
cols - 1
) * 1.5 + h_max
else:
if series_group is self.series:
legend_width = self.spacing + w + self.legend_box_size
self.margin_box.left += legend_width
self._legend_at_left_width += legend_width
else:
self.margin_box.right += (
self.spacing + w + self.legend_box_size
)
self._x_labels_height = 0
if (self._x_labels or self._x_2nd_labels) and self.show_x_labels:
for xlabels in (self._x_labels, self._x_2nd_labels):
if xlabels:
h, w = get_texts_box(
map(
lambda x: truncate(x, self.truncate_label or 25),
cut(xlabels)
), self.style.label_font_size
)
self._x_labels_height = self.spacing + max(
w * abs(sin(rad(self.x_label_rotation))), h
)
if xlabels is self._x_labels:
self.margin_box.bottom += self._x_labels_height
else:
self.margin_box.top += self._x_labels_height
if self.x_label_rotation:
if self.x_label_rotation % 180 < 90:
self.margin_box.right = max(
w * abs(cos(rad(self.x_label_rotation))),
self.margin_box.right
)
else:
self.margin_box.left = max(
w * abs(cos(rad(self.x_label_rotation))),
self.margin_box.left
)
if self.show_y_labels:
for ylabels in (self._y_labels, self._y_2nd_labels):
if ylabels:
h, w = get_texts_box(
cut(ylabels), self.style.label_font_size
)
if ylabels is self._y_labels:
self.margin_box.left += self.spacing + max(
w * abs(cos(rad(self.y_label_rotation))), h
)
else:
self.margin_box.right += self.spacing + max(
w * abs(cos(rad(self.y_label_rotation))), h
)
self._title = split_title(
self.title, self.width, self.style.title_font_size
)
if self.title:
h, _ = get_text_box(self._title[0], self.style.title_font_size)
self.margin_box.top += len(self._title) * (self.spacing + h)
self._x_title = split_title(
self.x_title, self.width - self.margin_box.x,
self.style.title_font_size
)
self._x_title_height = 0
if self._x_title:
h, _ = get_text_box(self._x_title[0], self.style.title_font_size)
height = len(self._x_title) * (self.spacing + h)
self.margin_box.bottom += height
self._x_title_height = height + self.spacing
self._y_title = split_title(
self.y_title, self.height - self.margin_box.y,
self.style.title_font_size
)
self._y_title_height = 0
if self._y_title:
h, _ = get_text_box(self._y_title[0], self.style.title_font_size)
height = len(self._y_title) * (self.spacing + h)
self.margin_box.left += height
self._y_title_height = height + self.spacing
# Inner margin
if self.print_values_position == 'top':
gh = self.height - self.margin_box.y
alpha = 1.1 * (self.style.value_font_size / gh) * self._box.height
if self._max and self._max > 0:
self._box.ymax += alpha
if self._min and self._min < 0:
self._box.ymin -= alpha
def _legend(self):
"""Make the legend box"""
if not self.show_legend:
return
truncation = self.truncate_legend
if self.legend_at_top:
x = self.margin_box.left
y = self.spacing
_title = split_title(self.title, self.width,
self.style.title_font_size)
if self.title:
h, _ = get_text_box(_title[0], self.style.title_font_size)
y += len(self._title) * (self.spacing + h) + 20
_sub_title = split_title(self.sub_title, self.width,
self.style.sub_title_font_size)
if self.sub_title:
h, _ = get_text_box(_sub_title[0],
self.style.sub_title_font_size)
y += len(self._sub_title) * (self.spacing + h) + 20
cols = self.legend_at_top_columns or ceil(sqrt(self._order)) or 1
if not truncation:
available_space = self.view.width / cols - (
self.legend_box_size + 5)
truncation = reverse_text_len(available_space,
self.style.legend_font_size)
elif self.legend_at_bottom:
x = self.margin_box.left + self.spacing
y = (self.margin_box.top + self.view.height +
self._x_title_height + self._x_labels_height + self.spacing)
cols = self.legend_at_bottom_columns or ceil(sqrt(
self._order)) or 1
if not truncation:
available_space = self.view.width / cols - (
self.legend_box_size + 5)
truncation = reverse_text_len(available_space,
self.style.legend_font_size)
else:
x = self.spacing + 60
y = self.margin_box.top + self.spacing
cols = 1
if not truncation:
truncation = 15
if not self.legend_at_top:
legends = self.svg.node(self.nodes['graph'],
class_='legends',
transform='translate(%d, %d)' % (x, y))
else:
legends = self.nodes['legends']
legends.attrib['transform'] = 'translate(%d, %d)' % (x, y)
h = max(self.legend_box_size, self.style.legend_font_size)
x_step = 20
if self.legend_at_bottom:
secondary_legends = legends # svg node is the same
else:
# draw secondary axis on right
x = self.margin_box.left + self.view.width + self.spacing
if self._y_2nd_labels:
h, w = get_texts_box(cut(self._y_2nd_labels),
self.style.label_font_size)
x += self.spacing + max(
w * abs(cos(rad(self.y_label_rotation))), h)
y = self.margin_box.top + self.spacing
secondary_legends = self.svg.node(self.nodes['graph'],
class_='legends',
transform='translate(%d, %d)' %
(x, y))
serie_number = -1
i = 0
for titles, is_secondary in ((self._legends, False),
(self._secondary_legends, True)):
if not self.legend_at_bottom and is_secondary:
i = 0
x = 0
for title in titles:
serie_number += 1
if title is None:
continue
col = i % cols
row = i // cols
if col == 0:
x = 0
legend = self.svg.node(
secondary_legends if is_secondary else legends,
class_='legend reactive activate-serie',
id="activate-serie-%d" % serie_number)
self.svg.node(
legend,
'rect',
x=x,
y=1.5 * row * h +
(self.style.legend_font_size - self.legend_box_size if
self.style.legend_font_size > self.legend_box_size else 0)
/ 2,
rx=3,
ry=3,
width=self.legend_box_size,
height=self.legend_box_size,
class_="color-%d reactive" %
(serie_number % len(self.style.colors)))
if isinstance(title, dict):
node = decorate(self.svg, legend, title)
title = title['title']
else:
node = legend
truncated = truncate(title, truncation)
legend_text = self.svg.node(node,
'text',
x=x + self.legend_box_size + 5,
y=1.5 * row * h + .5 * h +
.3 * self.style.legend_font_size)
legend_text.text = truncated
legend_text.attrib['font-weight'] = 'bold'
x = x + x_step + text_len(len(title),
self.style.legend_font_size)
if truncated != title:
self.svg.node(legend, 'title').text = title
i += 1