Fixes #63: stylesheet issue with PySide

Author: PierreRaybaut

qwt/plot_canvas.py

@@ -32,7 +32,7 @@
     QPolygonF,
 )
 from qtpy.QtWidgets import QFrame, QStyleOption, QStyle
-from qtpy.QtCore import Qt, QSizeF, QEvent, QPointF, QRectF
+from qtpy.QtCore import Qt, QSizeF, QEvent, QPointF, QRectF, QRect
 from qtpy import QtCore as QC
 
 
@@ -81,8 +81,17 @@ def updateState(self, state):
             self.__origin = state.brushOrigin()
 
     def drawRects(self, rects, count):
-        for i in range(count):
-            self.border.rectList += [rects[i]]
+        if QT_API.startswith("pyside"):
+            # Pyside
+            if isinstance(rects, (QRect, QRectF)):
+                self.border.list = [rects]
+            else:
+                for i in range(count):
+                    self.border.rectList += [rects.getRect().index(i)]
+        else:
+            # PyQt
+            for i in range(count):
+                self.border.rectList += [rects[i]]
 
     def drawPath(self, path):
         rect = QRectF(QPointF(0.0, 0.0), self.__size)

qwt/tests/data/stylesheet.png

@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+
+SHOW = True  # Show test in GUI-based test launcher
+
+import numpy as np
+from qtpy.QtCore import Qt
+
+import qwt
+
+
+class StyleSheetPlot(qwt.QwtPlot):
+    def __init__(self):
+        super().__init__()
+        self.setTitle("Stylesheet test (Issue #63)")
+        self.setStyleSheet("background-color: #19232D; color: #E0E1E3;")
+        qwt.QwtPlotGrid.make(self, color=Qt.white, width=0, style=Qt.DotLine)
+        x = np.arange(-5.0, 5.0, 0.1)
+        qwt.QwtPlotCurve.make(x, np.sinc(x), "y = sinc(x)", self, linecolor="green")
+
+
+if __name__ == "__main__":
+    from qwt import tests
+
+    tests.test_widget(StyleSheetPlot, size=(600, 400))