Results: Hydrograph: Add legend.

src/View/Results/PlotH.py

@@ -54,6 +54,10 @@ class PlotH(PamhyrPlot):
         self.label_x = _translate("Results", "Time (s)")
         self.label_y = _translate("Results", "Discharge (m³/s)")
 
+        self.label_discharge = _translate("Results", "Cross-section discharge")
+        self.label_discharge_max = _translate("Results", "Max discharge")
+        self.label_timestamp = _translate("Results", "Current timestamp")
+
         self._isometric_axis = False
 
         self._auto_relim_update = True
@@ -88,6 +92,8 @@ class PlotH(PamhyrPlot):
 
         self.set_ticks_time_formater()
 
+        self.enable_legend()
+
         self.idle()
         self._init = True
 
@@ -100,6 +106,7 @@ class PlotH(PamhyrPlot):
 
         self._line, = self.canvas.axes.plot(
             x, y,
+            label=self.label_discharge,
             color=self.color_plot,
             **self.plot_default_kargs
         )
@@ -112,6 +119,7 @@ class PlotH(PamhyrPlot):
         self._current, = self.canvas.axes.plot(
             self._current_timestamp,
             y[self.ts.index(self._current_timestamp)],
+            # label=self.label_timestamp,
             color=self.color_plot_current,
             **kargs
         )
@@ -131,6 +139,7 @@ class PlotH(PamhyrPlot):
 
         self._line_max, = self.canvas.axes.plot(
             x, y,
+            label=self.label_discharge_max,
             color=self.color_plot_highlight,
             linestyle='dotted',
             **self.plot_default_kargs

src/View/Tools/PamhyrPlot.py

@@ -200,3 +200,10 @@ class PamhyrPlot(APlot):
             labelsize=9,
             labelrotation=45
         )
+
+    def enable_legend(self):
+        self.canvas.axes.legend(
+            fancybox=True,
+            shadow=True,
+            fontsize=8
+        )