[FEATURE] pie chart label style

DataPlotly/core/plot_settings.py

@@ -147,6 +147,9 @@ def __init__(self, plot_type: str = 'scatter', properties: dict = None, layout:
             'pie_hole': 0,
             'fill': False,
             'line_combo_threshold': 'Dot Line',
+            'font_plot_family': 'Arial',
+            'font_plot_size': 10,
+            'font_plot_color': '#000000',
             # Be consistent with the value of line_combo_threshold 
             # since the value of 'line_dash_threshold is set from 
             # the combo value

DataPlotly/core/plot_types/pie.py

@@ -39,7 +39,12 @@ def create_trace(settings):
                     'colors': settings.data_defined_colors if settings.data_defined_colors else [settings.properties['in_color']]
                 },
                 name=settings.properties['custom'][0],
-                hole=settings.properties.get('pie_hole', 0)
+                hole=settings.properties.get('pie_hole', 0),
+                textfont={
+                    'size': settings.properties.get('font_plot_size', 30),
+                    'color': settings.properties.get('font_plot_color', '#000000'),
+                    'family': settings.properties.get('font_plot_family', 'Arial')
+                }
                 )]
 
     @staticmethod

DataPlotly/gui/plot_settings_widget.py

@@ -58,7 +58,8 @@
     QgsExpressionContextGenerator,
     QgsPropertyCollection,
     QgsLayoutItemRegistry,
-    QgsPropertyDefinition
+    QgsPropertyDefinition,
+    QgsTextFormat
 )
 from qgis.gui import (
     QgsPanelWidget,
@@ -378,6 +379,9 @@ def __init__(self, mode=MODE_CANVAS, parent=None, override_iface=None, message_b
         self.font_ylabel_style.setCurrentFont(QFont('Arial', 10))
         self.font_yticks_style.setCurrentFont(QFont('Arial', 10))
         self.font_legend_style.setCurrentFont(QFont('Arial', 10))
+        default_text_format = QgsTextFormat()
+        default_text_format.setFont(QFont('Arial', 10))
+        self.font_plot_style.setTextFormat(default_text_format)
 
         # set range of axis min/max spin boxes
         self.x_axis_min.setRange(sys.float_info.max * -1, sys.float_info.max)
@@ -1069,6 +1073,8 @@ def refreshWidgets(self):  # pylint: disable=too-many-statements,too-many-branch
             self.violinBox: ['violin'],
             self.pie_hole_label : ['pie'],
             self.pie_hole : ['pie'],
+            self.font_plot_label: ['pie'],
+            self.font_plot_style: ['pie'],
             self.fill : ['radar'],
             self.threshold: ['radar'],
             self.threshold_value: ['radar'],
@@ -1245,7 +1251,10 @@ def get_settings(self) -> PlotSettings:  # pylint: disable=R0915
                            'threshold_value': self.threshold_value.value(),
                            'y_fields_combo': ', '.join(self.y_fields_combo.checkedItems()),
                            'connect_gaps': self.scatterline_gaps_check.isChecked(),
-                           'interpolation_shape': self.scatterline_interpolation_combo.currentData()
+                           'interpolation_shape': self.scatterline_interpolation_combo.currentData(),
+                           'font_plot_size': self.font_plot_style.textFormat().size(),
+                           'font_plot_family': self.font_plot_style.textFormat().font().family(),
+                           'font_plot_color': self.font_plot_style.textFormat().color().name()
                            }
 
         if self.in_color_defined_button.isActive():