Example #1
0
    def _compute_margin(self):
        """Compute graph margins from set texts"""
        if self.show_legend and self.series:
            h, w = get_texts_box(
                map(lambda x: truncate(x, self.truncate_legend or 15),
                    cut(self.series, 'title')),
                self.legend_font_size)
            if self.legend_at_bottom:
                h_max = max(h, self.legend_box_size)
                self.margin.bottom += 10 + h_max * round(
                    sqrt(self._order) - 1) * 1.5 + h_max
            else:
                self.margin.right += 10 + w + self.legend_box_size

        if self.title:
            h, _ = get_text_box(self.title[0], self.title_font_size)
            self.margin.top += len(self.title) * (10 + h)

        if self._x_labels:
            h, w = get_texts_box(
                cut(self._x_labels), self.label_font_size)
            self._x_labels_height = 10 + max(
                w * sin(rad(self.x_label_rotation)), h)
            self.margin.bottom += self._x_labels_height
            if self.x_label_rotation:
                self.margin.right = max(
                    w * cos(rad(self.x_label_rotation)),
                    self.margin.right)
        else:
            self._x_labels_height = 0
        if self._y_labels:
            h, w = get_texts_box(
                cut(self._y_labels), self.label_font_size)
            self.margin.left += 10 + max(
                w * cos(rad(self.y_label_rotation)), h)
Example #2
0
    def _compute_margin(self):
        """Compute graph margins from set texts"""
        if self.show_legend and self.series:
            h, w = get_texts_box(
                map(lambda x: truncate(x, self.truncate_legend or 15),
                    cut(self.series, 'title')), self.legend_font_size)
            if self.legend_at_bottom:
                h_max = max(h, self.legend_box_size)
                self.margin.bottom += 10 + h_max * round(
                    sqrt(self._order) - 1) * 1.5 + h_max
            else:
                self.margin.right += 10 + w + self.legend_box_size

        if self.title:
            h, _ = get_text_box(self.title[0], self.title_font_size)
            self.margin.top += len(self.title) * (10 + h)

        if self._x_labels:
            h, w = get_texts_box(cut(self._x_labels), self.label_font_size)
            self._x_labels_height = 10 + max(
                w * sin(rad(self.x_label_rotation)), h)
            self.margin.bottom += self._x_labels_height
            if self.x_label_rotation:
                self.margin.right = max(w * cos(rad(self.x_label_rotation)),
                                        self.margin.right)
        else:
            self._x_labels_height = 0
        if self._y_labels:
            h, w = get_texts_box(cut(self._y_labels), self.label_font_size)
            self.margin.left += 10 + max(w * cos(rad(self.y_label_rotation)),
                                         h)
Example #3
0
    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
Example #4
0
    def _legend(self):
        """Make the legend box"""
        if not self.show_legend:
            return
        truncation = self.truncate_legend
        if self.legend_at_bottom:
            x = self.margin.left + self.spacing
            y = (self.margin.top + self.view.height +
                 self._x_title_height +
                 self._x_labels_height + self.spacing)
            cols = 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.legend_font_size)
        else:
            x = self.spacing
            y = self.margin.top + self.spacing
            cols = 1
            if not truncation:
                truncation = 15

        legends = self.svg.node(
            self.nodes['graph'], class_='legends',
            transform='translate(%d, %d)' % (x, y))

        h = max(self.legend_box_size, self.legend_font_size)
        x_step = self.view.width / cols
        if self.legend_at_bottom:
            # if legends at the bottom, we dont split the windows
            # gen structure - (i, (j, (l, tf)))
            # i - global serie number - used for coloring and identification
            # j - position within current legend box
            # l - label
            # tf - whether it is secondary label
            gen = enumerate(enumerate(chain(
                zip(self._legends, repeat(False)),
                zip(self._secondary_legends, repeat(True)))))
            secondary_legends = legends  # svg node is the same
        else:
            gen = enumerate(chain(
                enumerate(zip(self._legends, repeat(False))),
                enumerate(zip(self._secondary_legends, repeat(True)))))

            # draw secondary axis on right
            x = self.margin.left + self.view.width + self.spacing
            if self._y_2nd_labels:
                h, w = get_texts_box(
                    cut(self._y_2nd_labels), self.label_font_size)
                x += self.spacing + max(w * cos(rad(self.y_label_rotation)), h)

            y = self.margin.top + self.spacing

            secondary_legends = self.svg.node(
                self.nodes['graph'], class_='legends',
                transform='translate(%d, %d)' % (x, y))

        for (global_serie_number, (i, (title, is_secondary))) in gen:

            col = i % cols
            row = i // cols

            legend = self.svg.node(
                secondary_legends if is_secondary else legends,
                class_='legend reactive activate-serie',
                id="activate-serie-%d" % global_serie_number)
            self.svg.node(
                legend, 'rect',
                x=col * x_step,
                y=1.5 * row * h + (
                    self.legend_font_size - self.legend_box_size
                    if self.legend_font_size > self.legend_box_size else 0
                ) / 2,
                width=self.legend_box_size,
                height=self.legend_box_size,
                class_="color-%d reactive" % (
                    global_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)
            self.svg.node(
                node, 'text',
                x=col * x_step + self.legend_box_size + 5,
                y=1.5 * row * h + .5 * h + .3 * self.legend_font_size
            ).text = truncated

            if truncated != title:
                self.svg.node(legend, 'title').text = title
Example #5
0
    def _legend(self):
        """Make the legend box"""
        if not self.show_legend:
            return
        truncation = self.truncate_legend
        if self.legend_at_bottom:
            x = self.margin.left + self.spacing
            y = (self.margin.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.legend_font_size)
        else:
            x = self.spacing
            y = self.margin.top + self.spacing
            cols = 1
            if not truncation:
                truncation = 15

        legends = self.svg.node(self.nodes['graph'],
                                class_='legends',
                                transform='translate(%d, %d)' % (x, y))

        h = max(self.legend_box_size, self.legend_font_size)
        x_step = self.view.width / cols
        if self.legend_at_bottom:
            # if legends at the bottom, we dont split the windows
            # gen structure - (i, (j, (l, tf)))
            # i - global serie number - used for coloring and identification
            # j - position within current legend box
            # l - label
            # tf - whether it is secondary label
            gen = enumerate(
                enumerate(
                    chain(zip(self._legends, repeat(False)),
                          zip(self._secondary_legends, repeat(True)))))
            secondary_legends = legends  # svg node is the same
        else:
            gen = enumerate(
                chain(enumerate(zip(self._legends, repeat(False))),
                      enumerate(zip(self._secondary_legends, repeat(True)))))

            # draw secondary axis on right
            x = self.margin.left + self.view.width + self.spacing
            if self._y_2nd_labels:
                h, w = get_texts_box(cut(self._y_2nd_labels),
                                     self.label_font_size)
                x += self.spacing + max(w * cos(rad(self.y_label_rotation)), h)

            y = self.margin.top + self.spacing

            secondary_legends = self.svg.node(self.nodes['graph'],
                                              class_='legends',
                                              transform='translate(%d, %d)' %
                                              (x, y))

        for (global_serie_number, (i, (title, is_secondary))) in gen:

            col = i % cols
            row = i // cols

            legend = self.svg.node(
                secondary_legends if is_secondary else legends,
                class_='legend reactive activate-serie',
                id="activate-serie-%d" % global_serie_number)
            self.svg.node(
                legend,
                'rect',
                x=col * x_step,
                y=1.5 * row * h +
                (self.legend_font_size - self.legend_box_size
                 if self.legend_font_size > self.legend_box_size else 0) / 2,
                width=self.legend_box_size,
                height=self.legend_box_size,
                class_="color-%d reactive" %
                (global_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)
            self.svg.node(node,
                          'text',
                          x=col * x_step + self.legend_box_size + 5,
                          y=1.5 * row * h + .5 * h +
                          .3 * self.legend_font_size).text = truncated

            if truncated != title:
                self.svg.node(legend, 'title').text = title
Example #6
0
    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
Example #7
0
    def _legend(self):
        """Make the legend box"""
        if not self.show_legend:
            return
        truncation = self.truncate_legend
        if 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
            y = self.margin_box.top + self.spacing
            cols = 1
            if not truncation:
                truncation = 15

        legends = self.svg.node(
            self.nodes['graph'],
            class_='legends',
            transform='translate(%d, %d)' % (x, y)
        )

        h = max(self.legend_box_size, self.style.legend_font_size)
        x_step = self.view.width / cols
        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

            for title in titles:
                serie_number += 1
                if title is None:
                    continue
                col = i % cols
                row = i // cols

                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=col * x_step,
                    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,
                    width=self.legend_box_size,
                    height=self.legend_box_size,
                    class_="color-%d reactive" % serie_number
                )

                if isinstance(title, dict):
                    node = decorate(self.svg, legend, title)
                    title = title['title']
                else:
                    node = legend

                truncated = truncate(title, truncation)
                self.svg.node(
                    node,
                    'text',
                    x=col * x_step + self.legend_box_size + 5,
                    y=1.5 * row * h + .5 * h + .3 * self.style.legend_font_size
                ).text = truncated

                if truncated != title:
                    self.svg.node(legend, 'title').text = title

                i += 1
Example #8
0
    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
Example #9
0
    def _legend(self):
        """Make the legend box"""
        if not self.show_legend:
            return
        truncation = self.truncate_legend
        if 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
            y = self.margin_box.top + self.spacing
            cols = 1
            if not truncation:
                truncation = 15

        legends = self.svg.node(
            self.nodes['graph'], class_='legends',
            transform='translate(%d, %d)' % (x, y))

        h = max(self.legend_box_size, self.style.legend_font_size)
        x_step = self.view.width / cols
        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

            for title in titles:
                serie_number += 1
                if title is None:
                    continue
                col = i % cols
                row = i // cols

                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=col * x_step,
                    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,
                    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)
                self.svg.node(
                    node, 'text',
                    x=col * x_step + self.legend_box_size + 5,
                    y=1.5 * row * h + .5 * h + .3 * self.style.legend_font_size
                ).text = truncated

                if truncated != title:
                    self.svg.node(legend, 'title').text = title

                i += 1