pyqtgraph/examples/__main__.py

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import sys, os
## make sure this pyqtgraph is importable before any others
sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..', '..'))
from pyqtgraph.Qt import QtCore, QtGui, USE_PYSIDE
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if USE_PYSIDE:
from exampleLoaderTemplate_pyside import Ui_Form
else:
from exampleLoaderTemplate_pyqt import Ui_Form
import os, sys
from pyqtgraph.pgcollections import OrderedDict
examples = OrderedDict([
('Command-line usage', 'CLIexample.py'),
('Basic Plotting', 'Plotting.py'),
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('ImageView', 'ImageView.py'),
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('ParameterTree', 'parametertree.py'),
('Crosshair / Mouse interaction', 'crosshair.py'),
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('Data Slicing', 'DataSlicing.py'),
('Plot Customization', 'customPlot.py'),
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('Dock widgets', 'dockarea.py'),
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('Console', 'ConsoleWidget.py'),
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('Histograms', 'histogram.py'),
('GraphicsItems', OrderedDict([
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('Scatter Plot', 'ScatterPlot.py'),
#('PlotItem', 'PlotItem.py'),
('IsocurveItem', 'isocurve.py'),
('ImageItem - video', 'ImageItem.py'),
('ImageItem - draw', 'Draw.py'),
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('Region-of-Interest', 'ROIExamples.py'),
('GraphicsLayout', 'GraphicsLayout.py'),
('LegendItem', 'Legend.py'),
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('Text Item', 'text.py'),
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('Linked Views', 'linkedViews.py'),
('Arrow', 'Arrow.py'),
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('ViewBox', 'ViewBox.py'),
])),
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('Benchmarks', OrderedDict([
('Video speed test', 'VideoSpeedTest.py'),
('Line Plot update', 'PlotSpeedTest.py'),
('Scatter Plot update', 'ScatterPlotSpeedTest.py'),
])),
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('3D Graphics', OrderedDict([
('Volumetric', 'GLVolumeItem.py'),
('Isosurface', 'GLIsosurface.py'),
('Surface Plot', 'GLSurfacePlot.py'),
('Scatter Plot', 'GLScatterPlotItem.py'),
('Shaders', 'GLshaders.py'),
('Mesh', 'GLMeshItem.py'),
('Image', 'GLImageItem.py'),
])),
('Widgets', OrderedDict([
('PlotWidget', 'PlotWidget.py'),
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('SpinBox', 'SpinBox.py'),
('ConsoleWidget', 'ConsoleWidget.py'),
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('TreeWidget', 'TreeWidget.py'),
('DataTreeWidget', 'DataTreeWidget.py'),
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('GradientWidget', 'GradientWidget.py'),
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#('TableWidget', '../widgets/TableWidget.py'),
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('ColorButton', 'ColorButton.py'),
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#('CheckTable', '../widgets/CheckTable.py'),
#('VerticalLabel', '../widgets/VerticalLabel.py'),
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('JoystickButton', 'JoystickButton.py'),
])),
('GraphicsScene', 'GraphicsScene.py'),
('Flowcharts', 'Flowchart.py'),
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#('Canvas', '../canvas'),
#('MultiPlotWidget', 'MultiPlotWidget.py'),
])
path = os.path.abspath(os.path.dirname(__file__))
class ExampleLoader(QtGui.QMainWindow):
def __init__(self):
QtGui.QMainWindow.__init__(self)
self.ui = Ui_Form()
self.cw = QtGui.QWidget()
self.setCentralWidget(self.cw)
self.ui.setupUi(self.cw)
global examples
self.populateTree(self.ui.exampleTree.invisibleRootItem(), examples)
self.ui.exampleTree.expandAll()
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self.resize(1000,500)
self.show()
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self.ui.splitter.setSizes([250,750])
self.ui.loadBtn.clicked.connect(self.loadFile)
self.ui.exampleTree.currentItemChanged.connect(self.showFile)
self.ui.exampleTree.itemDoubleClicked.connect(self.loadFile)
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self.ui.pyqtCheck.toggled.connect(self.pyqtToggled)
self.ui.pysideCheck.toggled.connect(self.pysideToggled)
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def pyqtToggled(self, b):
if b:
self.ui.pysideCheck.setChecked(False)
def pysideToggled(self, b):
if b:
self.ui.pyqtCheck.setChecked(False)
def populateTree(self, root, examples):
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for key, val in examples.items():
item = QtGui.QTreeWidgetItem([key])
if isinstance(val, basestring):
item.file = val
else:
self.populateTree(item, val)
root.addChild(item)
def currentFile(self):
item = self.ui.exampleTree.currentItem()
if hasattr(item, 'file'):
global path
return os.path.join(path, item.file)
return None
def loadFile(self):
fn = self.currentFile()
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extra = []
if self.ui.pyqtCheck.isChecked():
extra.append('pyqt')
elif self.ui.pysideCheck.isChecked():
extra.append('pyside')
if fn is None:
return
if sys.platform.startswith('win'):
os.spawnl(os.P_NOWAIT, sys.executable, '"'+sys.executable+'"', '"' + fn + '"', *extra)
else:
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os.spawnl(os.P_NOWAIT, sys.executable, sys.executable, fn, *extra)
def showFile(self):
fn = self.currentFile()
if fn is None:
self.ui.codeView.clear()
return
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if os.path.isdir(fn):
fn = os.path.join(fn, '__main__.py')
text = open(fn).read()
self.ui.codeView.setPlainText(text)
def run():
app = QtGui.QApplication([])
loader = ExampleLoader()
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app.exec_()
if __name__ == '__main__':
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run()