def on_draw(self):
draw_mode = self.mode_combo.currentText()
self.axes.clear()
if self.g != None:
if hasattr(self.g, 'destruct'):
self.g.destruct()
if draw_mode == "Graph Test":
self.g = GraphTest(self)
elif draw_mode == "Graph Test Numpy":
self.g = GraphTestNumPy(self)
elif draw_mode == "STEP Hierarchy":
self.g = GraphHierarchy(self)
elif draw_mode == "STEP Co-occurence":
self.g = GraphCoOccurrence(self)
elif draw_mode == "STEP Context":
self.g = GraphCoOccurrence(self)
self.connect(self.node_size, QtCore.SIGNAL('valueChanged(int)'), self.g.set_node_mult)
self.axes.grid(self.draw_grid_tf)
self.canvas.draw()
class BrowserMatPlotFrame(QtGui.QWidget):
"定义画图的页面"
def __init__(self, parent = None):
QtGui.QWidget.__init__(self)
self.parent = parent
self.status_bar = parent.status_bar
#State
self.draw_node_labels_tf = True
self.draw_axis_units_tf = False
self.draw_grid_tf = False
self.g = None
#PATH used in drawing STEP hierarchy, co-occurence, context
self.step_path = parent.step_path
#MPL figure
self.dpi = 100
self.fig = Figure((5.0, 4.0), dpi=self.dpi)
self.fig.subplots_adjust(left=0,right=1,top=1,bottom=0)
#QT canvas
self.canvas = FigureCanvas(self.fig)
self.canvas.setParent(self)
self.canvas.mpl_connect('pick_event', self.on_pick) #used when selectingpyth canvas objects
self.canvas.setSizePolicy(QtGui.QSizePolicy.Expanding, QtGui.QSizePolicy.Expanding)
self.axes = self.fig.add_subplot(111)
#self.axes.hold(False) #clear the axes every time plot() is called
self.mpl_toolbar = NavigationToolbar(self.canvas, self)
#GUI controls
self.mode_combo = QComboBox()
self.mode_combo.addItems(["Graph Test",
"Graph Test Numpy",
"STEP Hierarchy",
"STEP Co-occurence",
"STEP Context"])
self.mode_combo.setMinimumWidth(200)
self.draw_button = QPushButton("&Draw/Refresh")
self.connect(self.draw_button, QtCore.SIGNAL('clicked()'), self.on_draw)
self.node_size = QSpinBox(self)
self.node_size.setSingleStep(5)
self.node_size.setMaximum(100)
self.node_size.setValue(25)
self.node_size_label = QLabel('Node Size (%):')
# connection set in on_draw() method
#Horizontal layout
hbox = QtGui.QHBoxLayout()
#Adding matplotlib widgets
for w in [self.mode_combo, 's', self.node_size_label, self.node_size, self.draw_button]:
if w == 's': hbox.addStretch()
else:
hbox.addWidget(w)
hbox.setAlignment(w, Qt.AlignVCenter)
#Vertical layout. Adding all other widgets, and hbox layout.
vbox = QtGui.QVBoxLayout()
vbox.addWidget(self.mpl_toolbar)
vbox.addWidget(self.canvas)
vbox.addLayout(hbox)
self.setLayout(vbox)
self.canvas.setFocus(True)
def draw_axis_units(self):
fw = self.fig.get_figwidth()
fh = self.fig.get_figheight()
l_margin = .4 / fw #.4in
b_margin = .3 / fh #.3in
if self.draw_axis_units_tf == True:
self.fig.subplots_adjust(left=l_margin,right=1,top=1,bottom=b_margin)
else:
self.fig.subplots_adjust(left=0,right=1,top=1,bottom=0)
self.canvas.draw()
def draw_grid(self):
if self.draw_grid_tf == False:
self.draw_grid_tf = True
else:
self.draw_grid_tf = False
self.axes.grid(self.draw_grid_tf)
self.canvas.draw()
def on_draw(self):
draw_mode = self.mode_combo.currentText()
self.axes.clear()
if self.g != None:
if hasattr(self.g, 'destruct'):
self.g.destruct()
if draw_mode == "Graph Test":
self.g = GraphTest(self)
elif draw_mode == "Graph Test Numpy":
self.g = GraphTestNumPy(self)
elif draw_mode == "STEP Hierarchy":
self.g = GraphHierarchy(self)
elif draw_mode == "STEP Co-occurence":
self.g = GraphCoOccurrence(self)
elif draw_mode == "STEP Context":
self.g = GraphCoOccurrence(self)
self.connect(self.node_size, QtCore.SIGNAL('valueChanged(int)'), self.g.set_node_mult)
self.axes.grid(self.draw_grid_tf)
self.canvas.draw()
def on_pick(self, args):
print "in matplotframe: ", args
def resizeEvent(self, ev):
self.draw_axis_units()
def set_step_path(self, path):
self.step_path = path
self.parent.set_step_path(path)
def toggle_axis_units(self):
if self.draw_axis_units_tf == False:
self.draw_axis_units_tf = True
else:
self.draw_axis_units_tf = False
self.draw_axis_units()
def toggle_node_labels(self):
if self.draw_node_labels_tf == False:
self.draw_node_labels_tf = True
else:
self.draw_node_labels_tf = False
if self.g != None:
self.g.redraw()