Orange.widgets.utils.plot.OWAxis.make_title() - Code Metrics - hugobuddel/orange3 - Measure and Improve Code Quality continuously with Scrutinizer

Orange.widgets.utils.plot.OWAxis.make_title() A
last analyzed 2015-12-08 12:38 UTC

↳ Parent: Orange.widgets.utils.plot.OWAxis

Complexity

Conditions

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Metric	Value
cc	2
dl	0
loc	6
rs	9.4286

"""
    The Axis class display an axis on a graph

    The axis contains a line with configurable style, possible arrows, and a title

    .. attribute:: line_style
        The LineStyle with which the axis line is drawn

    .. attribute:: title
        The string to be displayed alongside the axis

    .. attribute:: title_above
        A boolean which specifies whether the title should be placed above or below the axis
        Normally the title would be above for top and left axes.

    .. attribute:: title_location
        can either be AxisStart, AxisEnd or AxisMiddle. The default is AxisMiddle

    .. attribute:: arrows
        A bitfield containing AxisEnd if an arrow should be drawn at the line's end (line.p2())
        and AxisStart if there should be an arrows at the first point.

        By default, there's an arrow at the end of the line

    .. attribute:: zoomable
        If this is set to True, the axis line will zoom together with the rest of the graph.
        Otherwise, the line will remain in place and only tick marks will zoom.

    .. method:: make_title
        Makes a pretty title, with the quantity title in italics and the unit in normal text

    .. method:: label_pos
        Controls where the axis title and tick marks are placed relative to the axis
"""

from math import *


from PyQt4.QtGui import QGraphicsItem, QGraphicsLineItem, QGraphicsTextItem, QPainterPath, QGraphicsPathItem, \
# .scrutinizer.yml
before_commands:
    - sudo pip install abc # Python2
    - sudo pip3 install abc # Python3
    QTransform, QGraphicsRectItem, QPen, QFontMetrics
from PyQt4.QtCore import QLineF, QPointF, QRectF, Qt
# .scrutinizer.yml
before_commands:
    - sudo pip install abc # Python2
    - sudo pip3 install abc # Python3

from .owconstants import *

from .owtools import resize_plot_item_list
from .owpalette import OWPalette


class OWAxis(QGraphicsItem):
    Role = OWPalette.Axis

    def __init__(self, id, title='', title_above=False, title_location=AxisMiddle,

                 line=None, arrows=0, plot=None, bounds=None):
        QGraphicsItem.__init__(self)
        self.setFlag(QGraphicsItem.ItemHasNoContents)
        self.setZValue(AxisZValue)
        self.id = id
        self.title = title
        self.title_location = title_location
        self.data_line = line
        self.plot = plot
        self.graph_line = None
        self.size = None
        self.scale = None
        self.tick_length = (10, 5, 0)
        self.arrows = arrows
        self.title_above = title_above
        self.line_item = QGraphicsLineItem(self)
        self.title_item = QGraphicsTextItem(self)
        self.end_arrow_item = None
        self.start_arrow_item = None
        self.show_title = False
        self.scale = None
        path = QPainterPath()
        path.setFillRule(Qt.WindingFill)
        path.moveTo(0, 3.09)
        path.lineTo(0, -3.09)
        path.lineTo(9.51, 0)
        path.closeSubpath()
        self.arrow_path = path
        self.label_items = []
        self.label_bg_items = []
        self.tick_items = []
        self._ticks = []
        self.zoom_transform = QTransform()
        self.labels = None
        self.values = None
        self._bounds = bounds
        self.auto_range = None
        self.auto_scale = True

        self.zoomable = False
        self.update_callback = None
        self.max_text_width = 50
        self.text_margin = 5
        self.always_horizontal_text = False

    @staticmethod
    def compute_scale(min, max):

        magnitude = int(3 * log10(abs(max - min)) + 1)
        if magnitude % 3 == 0:
            first_place = 1
        elif magnitude % 3 == 1:
            first_place = 2
        else:
            first_place = 5
        magnitude = magnitude // 3 - 1
        step = first_place * pow(10, magnitude)
        first_val = ceil(min / step) * step
        return first_val, step

    def update_ticks(self):
        self._ticks = []
        major, medium, minor = self.tick_length

        if self.labels is not None and not self.auto_scale:
            values = self.values or range(len(self.labels))
            for i, text in zip(values, self.labels):
                self._ticks.append((i, text, medium, 1))
        else:
            if self.scale and not self.auto_scale:
                min, max, step = self.scale

            elif self.auto_range:
                min, max = self.auto_range

                if min is not None and max is not None:
                    step = (max - min) / 10
                else:
                    return
            else:
                return

            if max == min:
                return

            val, step = self.compute_scale(min, max)
            while val <= max:
                self._ticks.append((val, "%.4g" % val, medium, step))
                val += step

    def update_graph(self):
        if self.update_callback:
            self.update_callback()

    def update(self, zoom_only=False):
        self.update_ticks()
        line_color = self.plot.color(OWPalette.Axis)
        text_color = self.plot.color(OWPalette.Text)
        if not self.graph_line or not self.scene():
            return
        self.line_item.setLine(self.graph_line)
        self.line_item.setPen(line_color)
        if self.title:
            self.title_item.setHtml('<b>' + self.title + '</b>')
            self.title_item.setDefaultTextColor(text_color)
        if self.title_location == AxisMiddle:
            title_p = 0.5
        elif self.title_location == AxisEnd:
            title_p = 0.95
        else:
            title_p = 0.05
        title_pos = self.graph_line.pointAt(title_p)
        v = self.graph_line.normalVector().unitVector()

        dense_text = False
        if hasattr(self, 'title_margin'):
            offset = self.title_margin
        elif self._ticks:
            if self.should_be_expanded():
                offset = 55
                dense_text = True
            else:
                offset = 35
        else:
            offset = 10

        if self.title_above:
            title_pos += (v.p2() - v.p1()) * (offset + QFontMetrics(self.title_item.font()).height())
        else:
            title_pos -= (v.p2() - v.p1()) * offset
            ## TODO: Move it according to self.label_pos

        self.title_item.setVisible(self.show_title)
        self.title_item.setRotation(-self.graph_line.angle())
        c = self.title_item.mapToParent(self.title_item.boundingRect().center())
        tl = self.title_item.mapToParent(self.title_item.boundingRect().topLeft())
        self.title_item.setPos(title_pos - c + tl)

        ## Arrows
        if not zoom_only:
            if self.start_arrow_item:
                self.scene().removeItem(self.start_arrow_item)
                self.start_arrow_item = None
            if self.end_arrow_item:
                self.scene().removeItem(self.end_arrow_item)
                self.end_arrow_item = None

        if self.arrows & AxisStart:
            if not zoom_only or not self.start_arrow_item:
                self.start_arrow_item = QGraphicsPathItem(self.arrow_path, self)
            self.start_arrow_item.setPos(self.graph_line.p1())
            self.start_arrow_item.setRotation(-self.graph_line.angle() + 180)
            self.start_arrow_item.setBrush(line_color)
            self.start_arrow_item.setPen(line_color)
        if self.arrows & AxisEnd:
            if not zoom_only or not self.end_arrow_item:
                self.end_arrow_item = QGraphicsPathItem(self.arrow_path, self)
            self.end_arrow_item.setPos(self.graph_line.p2())
            self.end_arrow_item.setRotation(-self.graph_line.angle())
            self.end_arrow_item.setBrush(line_color)
            self.end_arrow_item.setPen(line_color)

        ## Labels

        n = len(self._ticks)
        resize_plot_item_list(self.label_items, n, QGraphicsTextItem, self)
        resize_plot_item_list(self.label_bg_items, n, QGraphicsRectItem, self)
        resize_plot_item_list(self.tick_items, n, QGraphicsLineItem, self)

        test_rect = QRectF(self.graph_line.p1(), self.graph_line.p2()).normalized()
        test_rect.adjust(-1, -1, 1, 1)

        n_v = self.graph_line.normalVector().unitVector()
        if self.title_above:
            n_p = n_v.p2() - n_v.p1()
        else:
            n_p = n_v.p1() - n_v.p2()
        l_v = self.graph_line.unitVector()
        l_p = l_v.p2() - l_v.p1()
        for i in range(n):
            pos, text, size, step = self._ticks[i]
            hs = 0.5 * step
            tick_pos = self.map_to_graph(pos)
            if not test_rect.contains(tick_pos):
                self.tick_items[i].setVisible(False)
                self.label_items[i].setVisible(False)
                continue
            item = self.label_items[i]
            item.setVisible(True)
            if not zoom_only:
                if self.id in XAxes or getattr(self, 'is_horizontal', False):
                    item.setHtml('<center>' + Qt.escape(text.strip()) + '</center>')
                else:
                    item.setHtml(Qt.escape(text.strip()))

            item.setTextWidth(-1)
            text_angle = 0
            if dense_text:
                w = min(item.boundingRect().width(), self.max_text_width)
                item.setTextWidth(w)
                if self.title_above:
                    label_pos = tick_pos + n_p * (w + self.text_margin) + l_p * item.boundingRect().height() / 2
                else:
                    label_pos = tick_pos + n_p * self.text_margin + l_p * item.boundingRect().height() / 2
                text_angle = -90 if self.title_above else 90
            else:
                w = min(item.boundingRect().width(),
                        QLineF(self.map_to_graph(pos - hs), self.map_to_graph(pos + hs)).length())
                label_pos = tick_pos + n_p * self.text_margin + l_p * item.boundingRect().height() / 2
                item.setTextWidth(w)

            if not self.always_horizontal_text:
                if self.title_above:
                    item.setRotation(-self.graph_line.angle() - text_angle)
                else:
                    item.setRotation(self.graph_line.angle() - text_angle)

            item.setPos(label_pos)
            item.setDefaultTextColor(text_color)

            self.label_bg_items[i].setRect(item.boundingRect())
            self.label_bg_items[i].setPen(QPen(Qt.NoPen))
            self.label_bg_items[i].setBrush(self.plot.color(OWPalette.Canvas))

            item = self.tick_items[i]
            item.setVisible(True)
            tick_line = QLineF(v)
            tick_line.translate(-tick_line.p1())
            tick_line.setLength(size)
            if self.title_above:
                tick_line.setAngle(tick_line.angle() + 180)
            item.setLine(tick_line)
            item.setPen(line_color)
            item.setPos(self.map_to_graph(pos))

    @staticmethod
    def make_title(label, unit=None):
        lab = '<i>' + label + '</i>'
        if unit:
            lab = lab + ' [' + unit + ']'
        return lab

    def set_line(self, line):
        self.graph_line = line
        self.update()

    def set_title(self, title):
        self.title = title
        self.update()

    def set_show_title(self, b):
        self.show_title = b
        self.update()

    def set_labels(self, labels, values):
        self.labels = labels
        self.values = values
        self.graph_line = None
        self.auto_scale = False
        self.update_ticks()
        self.update_graph()

    def set_scale(self, min, max, step_size):

        self.scale = (min, max, step_size)
        self.graph_line = None
        self.auto_scale = False
        self.update_ticks()
        self.update_graph()

    def set_tick_length(self, minor, medium, major):
        self.tick_length = (minor, medium, major)
        self.update()

    def map_to_graph(self, x):
        min, max = self.plot.bounds_for_axis(self.id)

        if min == max:
            return QPointF()
        line_point = self.graph_line.pointAt((x - min) / (max - min))
        end_point = line_point * self.zoom_transform
        return self.projection(end_point, self.graph_line)

    @staticmethod
    def projection(point, line):
        norm = line.normalVector()
        norm.translate(point - norm.p1())
        p = QPointF()
        type = line.intersect(norm, p)

        return p

    def continuous_labels(self):
        min, max, step = self.scale

        magnitude = log10(abs(max - min))


    def paint(self, painter, option, widget):
        pass

    def boundingRect(self):
class Foo:
    def some_method(self, x, y):
        return x + y;
        return QRectF()

    def ticks(self):
        if not self._ticks:
            self.update_ticks()
        return self._ticks

    def bounds(self):
        if self._bounds:
            return self._bounds
        if self.labels:
            return -0.2, len(self.labels) - 0.8
        elif self.scale:
            min, max, _step = self.scale

            return min, max
        elif self.auto_range:
            return self.auto_range
        else:
            return 0, 1

    def set_bounds(self, value):
        self._bounds = value

    def should_be_expanded(self):
        self.update_ticks()
        return self.id in YAxes or self.always_horizontal_text or sum(
            len(t[1]) for t in self._ticks) * 12 > self.plot.width()



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Orange.widgets.utils.plot.OWAxis.make_title() A
last analyzed 2015-12-08 12:38 UTC

Complexity

Size

Duplication

1. Missing Dependencies

2. Missing init.py files

1. Missing Dependencies

2. Missing init.py files

1			"""
2			The Axis class display an axis on a graph
3
4			The axis contains a line with configurable style, possible arrows, and a title
5
6			.. attribute:: line_style
7			The LineStyle with which the axis line is drawn
8
9			.. attribute:: title
10			The string to be displayed alongside the axis
11
12			.. attribute:: title_above
13			A boolean which specifies whether the title should be placed above or below the axis
14			Normally the title would be above for top and left axes.
15
16			.. attribute:: title_location
17			can either be AxisStart, AxisEnd or AxisMiddle. The default is AxisMiddle
18
19			.. attribute:: arrows
20			A bitfield containing AxisEnd if an arrow should be drawn at the line's end (line.p2())
21			and AxisStart if there should be an arrows at the first point.
22
23			By default, there's an arrow at the end of the line
24
25			.. attribute:: zoomable
26			If this is set to True, the axis line will zoom together with the rest of the graph.
27			Otherwise, the line will remain in place and only tick marks will zoom.
28
29			.. method:: make_title
30			Makes a pretty title, with the quantity title in italics and the unit in normal text
31
32			.. method:: label_pos
33			Controls where the axis title and tick marks are placed relative to the axis
34			"""
35
36			from math import *
			0 ignored issues – show Bug Best Practice introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report This seems to re-define the built-in `pow`. It is generally discouraged to redefine built-ins as this makes code very hard to read. Loading history... Coding Style introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report The usage of wildcard imports like `math` should generally be avoided. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `erfc` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `hypot` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `degrees` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `asin` was imported with wildcard, but is not used. 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Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `isfinite` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `e` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `atanh` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `isnan` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `lgamma` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `acos` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `factorial` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `log1p` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `atan2` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `atan` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `log` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `isinf` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `tan` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `cosh` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `trunc` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `sinh` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `floor` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `exp` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `radians` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `gamma` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `tanh` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `modf` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `erf` was imported with wildcard, but is not used. Loading history... Unused Code introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report `fsum` was imported with wildcard, but is not used. Loading history... 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37
38			from PyQt4.QtGui import QGraphicsItem, QGraphicsLineItem, QGraphicsTextItem, QPainterPath, QGraphicsPathItem, \
			0 ignored issues – show Configuration introduced 2015-12-02 09:15 UTC by Report Bug Copy Issue Report The import `PyQt4.QtGui` could not be resolved. This can be caused by one of the following: 1. Missing Dependencies This error could indicate a configuration issue of Pylint. Make sure that your libraries are available by adding the necessary commands. # .scrutinizer.yml before_commands: - sudo pip install abc # Python2 - sudo pip3 install abc # Python3 Tip: We are currently not using virtualenv to run pylint, when installing your modules make sure to use the command for the correct version. 2. Missing __init__.py files This error could also result from missing `__init__.py` files in your module folders. Make sure that you place one file in each sub-folder. Loading history...

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Orange.widgets.utils.plot.OWAxis.make_title() A last analyzed 2015-12-08 12:38 UTC

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Orange.widgets.utils.plot.OWAxis.make_title() A
last analyzed 2015-12-08 12:38 UTC

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