GLViewWidget.itemsAt() now measures y from top of widget.
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@ -15,6 +15,8 @@ pyqtgraph-0.9.9 [unreleased]
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- Renamed GraphicsView signals to avoid collision with ViewBox signals that
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- Renamed GraphicsView signals to avoid collision with ViewBox signals that
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are wrapped in PlotWidget: sigRangeChanged => sigDeviceRangeChanged and
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are wrapped in PlotWidget: sigRangeChanged => sigDeviceRangeChanged and
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sigTransformChanged => sigDeviceTransformChanged.
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sigTransformChanged => sigDeviceTransformChanged.
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- GLViewWidget.itemsAt() now measures y from top of widget to match mouse
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event position.
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New Features:
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New Features:
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- Added ViewBox.setLimits() method
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- Added ViewBox.setLimits() method
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@ -129,6 +129,12 @@ class GLViewWidget(QtOpenGL.QGLWidget):
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return tr
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return tr
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def itemsAt(self, region=None):
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def itemsAt(self, region=None):
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"""
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Return a list of the items displayed in the region (x, y, w, h)
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relative to the widget.
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"""
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region = (region[0], self.height()-(region[1]+region[3]), region[2], region[3])
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#buf = np.zeros(100000, dtype=np.uint)
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#buf = np.zeros(100000, dtype=np.uint)
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buf = glSelectBuffer(100000)
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buf = glSelectBuffer(100000)
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try:
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try:
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@ -294,6 +300,17 @@ class GLViewWidget(QtOpenGL.QGLWidget):
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def mouseReleaseEvent(self, ev):
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def mouseReleaseEvent(self, ev):
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pass
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pass
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# Example item selection code:
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#region = (ev.pos().x()-5, ev.pos().y()-5, 10, 10)
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#print(self.itemsAt(region))
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## debugging code: draw the picking region
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#glViewport(*self.getViewport())
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#glClear( GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT )
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#region = (region[0], self.height()-(region[1]+region[3]), region[2], region[3])
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#self.paintGL(region=region)
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#self.swapBuffers()
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def wheelEvent(self, ev):
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def wheelEvent(self, ev):
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if (ev.modifiers() & QtCore.Qt.ControlModifier):
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if (ev.modifiers() & QtCore.Qt.ControlModifier):
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