Add Matplotlib python widget

pyplugins/CMakeLists.txt

@@ -19,6 +19,8 @@ INSTALL(
   FILES
   ${CMAKE_CURRENT_SOURCE_DIR}/gepetto/gui/pythonwidget.py
   ${CMAKE_CURRENT_SOURCE_DIR}/gepetto/gui/blenderexport.py
+  ${CMAKE_CURRENT_SOURCE_DIR}/gepetto/gui/matplotlibwidget.py
+  ${CMAKE_CURRENT_SOURCE_DIR}/gepetto/gui/matplotlib_example.py
   ${CMAKE_CURRENT_SOURCE_DIR}/gepetto/gui/__init__.py
   DESTINATION ${PYTHON_SITELIB}/gepetto/gui
   )

pyplugins/gepetto/gui/matplotlib_example.py

+from PythonQt import QtGui, Qt
+from gepetto.corbaserver import Client
+import numpy as np
+
+from gepetto.gui.matplotlibwidget import MatplotlibWidget
+
+class Plugin(QtGui.QDockWidget):
+    """
+    Example of plugin using matplotlib
+    """
+    def __init__ (self, mainWindow, flags = None):
+        if flags is None:
+            super(Plugin, self).__init__ ("Matplotlib example plugin", mainWindow)
+        else:
+            super(Plugin, self).__init__ ("Matplotlib example plugin", mainWindow, flags)
+        self.setObjectName("Matplotlib example plugin")
+        self.client = Client()
+
+        # This avoids having a widget bigger than what it needs. It avoids having
+        # a big dock widget and a small osg widget when creating the main osg widget.
+        p = Qt.QSizePolicy.Ignored
+        self.testWidget = MatplotlibWidget(self, True)
+        self.testWidget.setSizePolicy(Qt.QSizePolicy(p,p))
+        self.setWidget (self.testWidget)
+
+        # Plot something
+        x = np.linspace (0, 10, num=100)
+        y = np.sin(x)
+        self.testWidget.figure.gca().plot (x, y)
+
+    ### If present, this function is called when a new OSG Widget is created.
+    def osgWidget(self, osgWindow):
+        pass
+
+    def resetConnection(self):
+        self.client = Client()

pyplugins/gepetto/gui/matplotlibwidget.py

+from matplotlib.figure import Figure
+import matplotlib.pyplot as plt
+from pythonqt.matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg, NavigationToolbar2QT
+
+from PythonQt import QtGui, Qt
+from gepetto.corbaserver import Client
+
+import numpy as np
+
+### This class represents one special tab of the new QDockWidget
+class MatplotlibWidget (QtGui.QWidget):
+    def __init__(self, parent, withToolbar = False):
+        super(MatplotlibWidget, self).__init__ (parent)
+
+        box = QtGui.QVBoxLayout(self)
+        # Create a figure
+        self.figure = Figure(figsize=(5,5), dpi=96)
+        # self.figure = Figure()
+        self.canvas = FigureCanvasQTAgg (self.figure)
+        box.addWidget(self.canvas)
+
+        if withToolbar:
+            self.toolbar = NavigationToolbar2QT(self.canvas, parent, False)
+            box.addWidget(self.toolbar)