Added "plot without margins" test for Issue #35

Author: PierreRaybaut

qwt/tests/no_margin.py

@@ -0,0 +1,105 @@
+# -*- coding: utf-8 -*-
+#
+# Licensed under the terms of the MIT License
+# Copyright (c) 2015 Pierre Raybaut
+# (see LICENSE file for more details)
+
+"""Simple plot without margins"""
+
+SHOW = True # Show test in GUI-based test launcher
+
+import numpy as np
+
+from qwt.qt.QtGui import QApplication, QFont, QPen, QPalette, QColor
+from qwt.qt.QtCore import Qt
+
+import os
+if os.environ.get('USE_PYQWT5', True):
+    USE_PYQWT5 = True
+    from PyQt4.Qwt5 import QwtPlot, QwtPlotCurve, QwtPlotMarker, QwtText
+else:
+    USE_PYQWT5 = False
+    from qwt import QwtPlot, QwtPlotCurve, QwtPlotMarker, QwtText  # analysis:ignore
+
+
+class TestPlot(QwtPlot):
+    def __init__(self, parent=None):
+        super(TestPlot, self).__init__(parent)
+        self.setWindowTitle("PyQwt" if USE_PYQWT5 else "PythonQwt")
+        self.enableAxis(self.xTop, True)
+        self.enableAxis(self.yRight, True)
+        y = np.linspace(0, 10, 500)
+        curve1 = QwtPlotCurve('Test Curve 1')
+        curve1.setData(np.sin(y), y)
+        curve2 = QwtPlotCurve('Test Curve 2')
+        curve2.setData(y**3, y)
+        if USE_PYQWT5:
+            curve2.setAxis(self.xTop, self.yRight)
+        else:
+            # PythonQwt
+            curve2.setAxes(self.xTop, self.yRight)
+
+        for item, col, xa, ya in ((curve1, Qt.green, self.xBottom, self.yLeft),
+                                  (curve2, Qt.red, self.xTop, self.yRight)):
+            if not USE_PYQWT5:
+                # PythonQwt
+                item.setOrientation(Qt.Vertical)
+            item.attach(self)
+            item.setPen(QPen(col))
+            for axis_id in xa, ya:
+                palette = self.axisWidget(axis_id).palette()
+                palette.setColor(QPalette.WindowText, QColor(col))
+                palette.setColor(QPalette.Text, QColor(col))
+                self.axisWidget(axis_id).setPalette(palette)
+                ticks_font = self.axisFont(axis_id)
+                self.setAxisFont(axis_id, ticks_font)
+        
+        self.canvas().setFrameStyle(0)#QFrame.Panel|QFrame.Sunken)
+        self.plotLayout().setCanvasMargin(0)
+        self.axisWidget(QwtPlot.yLeft).setMargin(0)
+        self.axisWidget(QwtPlot.xTop).setMargin(0)
+        self.axisWidget(QwtPlot.yRight).setMargin(0)
+        self.axisWidget(QwtPlot.xBottom).setMargin(0)
+
+        self.marker = QwtPlotMarker()
+        self.marker.setValue(0, 5)
+        self.marker.attach(self)
+        
+    def resizeEvent(self, event):
+        super(TestPlot, self).resizeEvent(event)
+        self.show_layout_details()
+    
+    def show_layout_details(self):
+        text = QwtText(
+          "plotLayout().canvasRect():\n%r\n\n"
+          "canvas().geometry():\n%r\n\n"
+          "plotLayout().scaleRect(QwtPlot.yLeft):\n%r\n\n"
+          "axisWidget(QwtPlot.yLeft).geometry():\n%r\n\n"
+          "plotLayout().scaleRect(QwtPlot.yRight):\n%r\n\n"
+          "axisWidget(QwtPlot.yRight).geometry():\n%r\n\n"
+          "plotLayout().scaleRect(QwtPlot.xBottom):\n%r\n\n"
+          "axisWidget(QwtPlot.xBottom).geometry():\n%r\n\n"
+          "plotLayout().scaleRect(QwtPlot.xTop):\n%r\n\n"
+          "axisWidget(QwtPlot.xTop).geometry():\n%r\n\n"
+              % (self.plotLayout().canvasRect().getCoords(),
+                 self.canvas().geometry().getCoords(),
+                 self.plotLayout().scaleRect(QwtPlot.yLeft).getCoords(),
+                 self.axisWidget(QwtPlot.yLeft).geometry().getCoords(),
+                 self.plotLayout().scaleRect(QwtPlot.yRight).getCoords(),
+                 self.axisWidget(QwtPlot.yRight).geometry().getCoords(),
+                 self.plotLayout().scaleRect(QwtPlot.xBottom).getCoords(),
+                 self.axisWidget(QwtPlot.xBottom).geometry().getCoords(),
+                 self.plotLayout().scaleRect(QwtPlot.xTop).getCoords(),
+                 self.axisWidget(QwtPlot.xTop).geometry().getCoords(),
+                 )
+                       )
+        text.setFont(QFont('Courier New'))
+        text.setColor(Qt.blue)
+        self.marker.setLabel(text)
+
+if __name__ == '__main__':
+    app = QApplication([])
+    plot = TestPlot()
+    plot.resize(300, 1000)
+    plot.show()
+    app.exec_()