Add pyqtgraph as submodule

pyqtgraph/graphicsItems/ViewBox/tests/test_ViewBox.py

@@ -0,0 +1,85 @@
+#import PySide
+import pyqtgraph as pg
+
+app = pg.mkQApp()
+qtest = pg.Qt.QtTest.QTest
+
+def assertMapping(vb, r1, r2):
+    assert vb.mapFromView(r1.topLeft()) == r2.topLeft()
+    assert vb.mapFromView(r1.bottomLeft()) == r2.bottomLeft()
+    assert vb.mapFromView(r1.topRight()) == r2.topRight()
+    assert vb.mapFromView(r1.bottomRight()) == r2.bottomRight()
+
+def test_ViewBox():
+    global app, win, vb
+    QRectF = pg.QtCore.QRectF
+    
+    win = pg.GraphicsWindow()
+    win.ci.layout.setContentsMargins(0,0,0,0)
+    win.resize(200, 200)
+    win.show()
+    vb = win.addViewBox()
+    
+    # set range before viewbox is shown
+    vb.setRange(xRange=[0, 10], yRange=[0, 10], padding=0)
+    
+    # required to make mapFromView work properly.
+    qtest.qWaitForWindowShown(win)
+    
+    g = pg.GridItem()
+    vb.addItem(g)
+    
+    app.processEvents()
+    
+    w = vb.geometry().width()
+    h = vb.geometry().height()
+    view1 = QRectF(0, 0, 10, 10)
+    size1 = QRectF(0, h, w, -h)
+    assertMapping(vb, view1, size1)
+    
+    # test resize
+    win.resize(400, 400)
+    app.processEvents()
+    w = vb.geometry().width()
+    h = vb.geometry().height()
+    size1 = QRectF(0, h, w, -h)
+    assertMapping(vb, view1, size1)
+    
+    # now lock aspect
+    vb.setAspectLocked()
+    
+    # test wide resize
+    win.resize(800, 400)
+    app.processEvents()
+    w = vb.geometry().width()
+    h = vb.geometry().height()
+    view1 = QRectF(-5, 0, 20, 10)
+    size1 = QRectF(0, h, w, -h)
+    assertMapping(vb, view1, size1)
+    
+    # test tall resize
+    win.resize(400, 800)
+    app.processEvents()
+    w = vb.geometry().width()
+    h = vb.geometry().height()
+    view1 = QRectF(0, -5, 10, 20)
+    size1 = QRectF(0, h, w, -h)
+    assertMapping(vb, view1, size1)
+    
+    # test limits + resize  (aspect ratio constraint has priority over limits
+    win.resize(400, 400)
+    app.processEvents()
+    vb.setLimits(xMin=0, xMax=10, yMin=0, yMax=10)
+    win.resize(800, 400)
+    app.processEvents()
+    w = vb.geometry().width()
+    h = vb.geometry().height()
+    view1 = QRectF(-5, 0, 20, 10)
+    size1 = QRectF(0, h, w, -h)
+    assertMapping(vb, view1, size1)
+    
+    
+if __name__ == '__main__':
+    import user,sys
+    test_ViewBox()
+