Line plot: Customizable figure

Author: VesnaT

Orange/widgets/visualize/owlineplot.py

@@ -1,3 +1,4 @@
+from typing import List
 from xml.sax.saxutils import escape
 
 import numpy as np
@@ -84,8 +85,9 @@ class LinePlotStyle:
     SELECTION_LINE_COLOR = QColor(Qt.black)
     SELECTION_LINE_WIDTH = 2
 
+    UNSELECTED_LINE_WIDTH = 1
     UNSELECTED_LINE_ALPHA = 100
-    UNSELECTED_LINE_ALPHA_SEL = 50
+    UNSELECTED_LINE_ALPHA_SEL = 50  # unselected lines, when selection exists
 
     SELECTED_LINE_WIDTH = 3
     SELECTED_LINE_ALPHA = 170
@@ -189,6 +191,11 @@ def reset(self):
 
 
 class ParameterSetter(Setter):
+    MEAN_LABEL = "Mean"
+    LINE_LABEL = "Lines"
+    SEL_LINE_LABEL = "Selected lines"
+    RANGE_LABEL = "Range"
+    SEL_RANGE_LABEL = "Selected range"
     initial_settings = {
         Setter.LABELS_BOX: {
             Setter.FONT_FAMILY_LABEL: Updater.FONT_FAMILY_SETTING,
@@ -201,9 +208,104 @@ class ParameterSetter(Setter):
             Setter.TITLE_LABEL: {Setter.TITLE_LABEL: ("", "")},
             Setter.X_AXIS_LABEL: {Setter.TITLE_LABEL: ("", "")},
             Setter.Y_AXIS_LABEL: {Setter.TITLE_LABEL: ("", "")},
+        },
+        Setter.PLOT_BOX: {
+            MEAN_LABEL: {
+                Updater.WIDTH_LABEL: (range(1, 15), LinePlotStyle.MEAN_WIDTH),
+                Updater.STYLE_LABEL: (list(Updater.LINE_STYLES),
+                                      Updater.DEFAULT_LINE_STYLE),
+            },
+            LINE_LABEL: {
+                Updater.WIDTH_LABEL: (range(1, 15),
+                                      LinePlotStyle.UNSELECTED_LINE_WIDTH),
+                Updater.STYLE_LABEL: (list(Updater.LINE_STYLES),
+                                      Updater.DEFAULT_LINE_STYLE),
+                Updater.ALPHA_LABEL: (range(0, 255, 5),
+                                      LinePlotStyle.UNSELECTED_LINE_ALPHA),
+                Updater.ANTIALIAS_LABEL: (None, True),
+            },
+            SEL_LINE_LABEL: {
+                Updater.WIDTH_LABEL: (range(1, 15),
+                                      LinePlotStyle.SELECTED_LINE_WIDTH),
+                Updater.STYLE_LABEL: (list(Updater.LINE_STYLES),
+                                      Updater.DEFAULT_LINE_STYLE),
+                Updater.ALPHA_LABEL: (range(0, 255, 5),
+                                      LinePlotStyle.SELECTED_LINE_ALPHA),
+                Updater.ANTIALIAS_LABEL: (None, False),
+            },
+            RANGE_LABEL: {
+                Updater.ALPHA_LABEL: (range(0, 255, 5),
+                                      LinePlotStyle.RANGE_ALPHA),
+            },
+            SEL_RANGE_LABEL: {
+                Updater.ALPHA_LABEL: (range(0, 255, 5),
+                                      LinePlotStyle.SELECTED_RANGE_ALPHA),
+            },
         }
     }
 
+    def __init__(self):
+        self.mean_settings = {
+            Updater.WIDTH_LABEL: LinePlotStyle.MEAN_WIDTH,
+            Updater.STYLE_LABEL: Updater.DEFAULT_LINE_STYLE,
+        }
+        self.line_settings = {
+            Updater.WIDTH_LABEL: LinePlotStyle.UNSELECTED_LINE_WIDTH,
+            Updater.ALPHA_LABEL: LinePlotStyle.UNSELECTED_LINE_ALPHA,
+            Updater.STYLE_LABEL: Updater.DEFAULT_LINE_STYLE,
+            Updater.ANTIALIAS_LABEL: True,
+        }
+        self.sel_line_settings = {
+            Updater.WIDTH_LABEL: LinePlotStyle.SELECTED_LINE_WIDTH,
+            Updater.ALPHA_LABEL: LinePlotStyle.SELECTED_LINE_ALPHA,
+            Updater.STYLE_LABEL: Updater.DEFAULT_LINE_STYLE,
+            Updater.ANTIALIAS_LABEL: False,
+        }
+        self.range_settings = {
+            Updater.ALPHA_LABEL: LinePlotStyle.RANGE_ALPHA,
+        }
+        self.sel_range_settings = {
+            Updater.ALPHA_LABEL: LinePlotStyle.SELECTED_RANGE_ALPHA,
+        }
+        super().__init__()
+
+    def update_setters(self):
+        def update_mean(**settings):
+            self.mean_settings.update(**settings)
+            Updater.update_lines(self.mean_lines_items, **self.mean_settings)
+
+        def update_lines(**settings):
+            self.line_settings.update(**settings)
+            Updater.update_lines(self.lines_items, **self.line_settings)
+
+        def update_sel_lines(**settings):
+            self.sel_line_settings.update(**settings)
+            Updater.update_lines(self.sel_lines_items, **self.sel_line_settings)
+
+        def _update_brush(items, **settings):
+            for item in items:
+                brush = item.brush()
+                color = brush.color()
+                color.setAlpha(settings[Updater.ALPHA_LABEL])
+                brush.setColor(color)
+                item.setBrush(brush)
+
+        def update_range(**settings):
+            self.range_settings.update(**settings)
+            _update_brush(self.range_items, **settings)
+
+        def update_sel_range(**settings):
+            self.sel_range_settings.update(**settings)
+            _update_brush(self.sel_range_items, **settings)
+
+        self._setters[self.PLOT_BOX] = {
+            self.MEAN_LABEL: update_mean,
+            self.LINE_LABEL: update_lines,
+            self.SEL_LINE_LABEL: update_sel_lines,
+            self.RANGE_LABEL: update_range,
+            self.SEL_RANGE_LABEL: update_sel_range,
+        }
+
     @property
     def title_item(self):
         return self.getPlotItem().titleLabel
@@ -216,10 +318,32 @@ def axis_items(self):
     def legend_items(self):
         return self.legend.items
 
+    @property
+    def mean_lines_items(self):
+        return [group.mean for group in self.groups]
+
+    @property
+    def lines_items(self):
+        return [group.profiles for group in self.groups]
+
+    @property
+    def sel_lines_items(self):
+        return [group.sel_profiles for group in self.groups] + \
+               [group.sub_profiles for group in self.groups]
+
+    @property
+    def range_items(self):
+        return [group.range for group in self.groups]
+
+    @property
+    def sel_range_items(self):
+        return [group.sel_range for group in self.groups]
+
 
 # Customizable plot widget
 class LinePlotGraph(pg.PlotWidget, ParameterSetter):
     def __init__(self, parent):
+        self.groups: List[ProfileGroup] = []
         self.bottom_axis = BottomAxisItem(orientation="bottom")
         self.bottom_axis.setLabel("")
         left_axis = AxisItem(orientation="left")
@@ -270,6 +394,7 @@ def reset(self):
         self.clear()
         self.getAxis('bottom').set_ticks(None)
         self.legend.hide()
+        self.groups = []
 
     def select_button_clicked(self):
         self.view_box.set_graph_state(SELECT)
@@ -322,20 +447,19 @@ def __create_curves(self):
 
     def _get_profiles_curve(self):
         x, y, con = self.__get_disconnected_curve_data(self.y_data)
-        color = QColor(self.color)
-        color.setAlpha(LinePlotStyle.UNSELECTED_LINE_ALPHA)
-        pen = self.make_pen(color)
-        return pg.PlotCurveItem(x=x, y=y, connect=con, pen=pen, antialias=True)
+        pen = self.make_pen(self.color)
+        curve = pg.PlotCurveItem(x=x, y=y, connect=con, pen=pen)
+        Updater.update_lines([curve], **self.graph.line_settings)
+        return curve
 
     def _get_sel_profiles_curve(self):
-        color = QColor(self.color)
-        color.setAlpha(LinePlotStyle.SELECTED_LINE_ALPHA)
-        pen = self.make_pen(color, LinePlotStyle.SELECTED_LINE_WIDTH)
-        return pg.PlotCurveItem(x=None, y=None, pen=pen, antialias=False)
+        curve = pg.PlotCurveItem(x=None, y=None, pen=self.make_pen(self.color))
+        Updater.update_lines([curve], **self.graph.sel_line_settings)
+        return curve
 
     def _get_range_curve(self):
         color = QColor(self.color)
-        color.setAlpha(LinePlotStyle.RANGE_ALPHA)
+        color.setAlpha(self.graph.range_settings[Updater.ALPHA_LABEL])
         bottom, top = nanmin(self.y_data, axis=0), nanmax(self.y_data, axis=0)
         return pg.FillBetweenItem(
             pg.PlotDataItem(x=self.x_data, y=bottom),
@@ -344,15 +468,15 @@ def _get_range_curve(self):
 
     def _get_sel_range_curve(self):
         color = QColor(self.color)
-        color.setAlpha(LinePlotStyle.SELECTED_RANGE_ALPHA)
+        color.setAlpha(self.graph.sel_range_settings[Updater.ALPHA_LABEL])
         curve1 = curve2 = pg.PlotDataItem(x=self.x_data, y=self.__mean)
         return pg.FillBetweenItem(curve1, curve2, brush=color)
 
     def _get_mean_curve(self):
-        pen = self.make_pen(self.color.darker(LinePlotStyle.MEAN_DARK_FACTOR),
-                            LinePlotStyle.MEAN_WIDTH)
-        return pg.PlotCurveItem(x=self.x_data, y=self.__mean,
-                                pen=pen, antialias=True)
+        pen = self.make_pen(self.color.darker(LinePlotStyle.MEAN_DARK_FACTOR))
+        curve = pg.PlotCurveItem(x=self.x_data, y=self.__mean, pen=pen)
+        Updater.update_lines([curve], **self.graph.mean_settings)
+        return curve
 
     def _get_error_bar(self):
         std = nanstd(self.y_data, axis=0)
@@ -402,11 +526,12 @@ def set_visible_error(self, show_error=True, **_):
 
     def update_profiles_color(self, selection):
         color = QColor(self.color)
-        alpha = LinePlotStyle.UNSELECTED_LINE_ALPHA if not selection \
-            else LinePlotStyle.UNSELECTED_LINE_ALPHA_SEL
+        alpha = self.graph.line_settings[Updater.ALPHA_LABEL] \
+            if not selection else LinePlotStyle.UNSELECTED_LINE_ALPHA_SEL
         color.setAlpha(alpha)
-        x, y = self.profiles.getData()
-        self.profiles.setData(x=x, y=y, pen=self.make_pen(color))
+        pen = self.profiles.opts["pen"]
+        pen.setColor(color)
+        self.profiles.setPen(pen)
 
     def update_sel_profiles(self, y_data):
         x, y, connect = self.__get_disconnected_curve_data(y_data) \
@@ -415,10 +540,10 @@ def update_sel_profiles(self, y_data):
 
     def update_sel_profiles_color(self, subset):
         color = QColor(Qt.black) if subset else QColor(self.color)
-        color.setAlpha(LinePlotStyle.SELECTED_LINE_ALPHA)
-        pen = self.make_pen(color, LinePlotStyle.SELECTED_LINE_WIDTH)
-        x, y = self.sel_profiles.getData()
-        self.sel_profiles.setData(x=x, y=y, pen=pen)
+        color.setAlpha(self.graph.sel_line_settings[Updater.ALPHA_LABEL])
+        pen = self.sel_profiles.opts["pen"]
+        pen.setColor(color)
+        self.sel_profiles.setPen(pen)
 
     def update_sub_profiles(self, y_data):
         x, y, connect = self.__get_disconnected_curve_data(y_data) \
@@ -674,12 +799,14 @@ def plot_groups(self):
                 group_data = self.data[indices, self.graph_variables]
                 self._plot_group(group_data, indices, index)
         self.graph.update_legend(self.group_var)
+        self.graph.groups = self.__groups
         self.graph.view_box.add_profiles(data.X)
 
     def _remove_groups(self):
         for group in self.__groups:
             group.remove_items()
         self.graph.view_box.remove_profiles()
+        self.graph.groups = []
         self.__groups = []
 
     def _plot_group(self, data, indices, index=None):

Orange/widgets/visualize/utils/customizableplot.py

@@ -1,6 +1,7 @@
 import sys
-from typing import Tuple, List, Dict, Callable, Iterable
+from typing import Tuple, List, Dict, Iterable
 
+from AnyQt.QtCore import Qt
 from AnyQt.QtGui import QFont, QFontDatabase
 from AnyQt.QtWidgets import QApplication
 
@@ -71,6 +72,21 @@ class Updater:
         IS_ITALIC_LABEL: (None, False)
     }
 
+    WIDTH_LABEL, ALPHA_LABEL, STYLE_LABEL, ANTIALIAS_LABEL = \
+        "Width", "Opacity", "Style", "Antialias"
+    LINE_STYLES = {"Solid line": Qt.SolidLine,
+                   "Dash line": Qt.DashLine,
+                   "Dot line": Qt.DotLine,
+                   "Dash dot line": Qt.DashDotLine,
+                   "Dash dot dot line": Qt.DashDotDotLine}
+    DEFAULT_LINE_STYLE = "Solid line"
+    LINE_SETTING: SettingsType = {
+        WIDTH_LABEL: (range(1, 15), 1),
+        ALPHA_LABEL: (range(0, 255, 5), 255),
+        STYLE_LABEL: (list(LINE_STYLES), DEFAULT_LINE_STYLE),
+        ANTIALIAS_LABEL: (None, False),
+    }
+
     @staticmethod
     def update_plot_title_text(title_item: pg.LabelItem, text: str):
         title_item.text = text
@@ -164,11 +180,36 @@ def change_font(font: QFont, settings: _SettingType) -> QFont:
             font.setItalic(italic)
         return font
 
+    @staticmethod
+    def update_lines(items: List[pg.PlotCurveItem], **settings: _SettingType):
+        for item in items:
+            antialias = settings.get(Updater.ANTIALIAS_LABEL)
+            if antialias is not None:
+                item.setData(item.xData, item.yData, antialias=antialias)
+
+            pen = item.opts["pen"]
+            alpha = settings.get(Updater.ALPHA_LABEL)
+            if alpha is not None:
+                color = pen.color()
+                color.setAlpha(alpha)
+                pen.setColor(color)
+
+            style = settings.get(Updater.STYLE_LABEL)
+            if style is not None:
+                pen.setStyle(Updater.LINE_STYLES[style])
+
+            width = settings.get(Updater.WIDTH_LABEL)
+            if width is not None:
+                pen.setWidth(width)
+
+            item.setPen(pen)
+
 
 class BaseParameterSetter:
     """ Subclass to add 'setter' functionality to a plot. """
     LABELS_BOX = "Fonts"
     ANNOT_BOX = "Annotations"
+    PLOT_BOX = "Figure"
 
     FONT_FAMILY_LABEL = "Font family"
     AXIS_TITLE_LABEL = "Axis title"