pyqtgraph/examples/__main__.py
2018-02-16 20:42:34 -08:00

146 lines
4.8 KiB
Python

import sys, os
if __name__ == "__main__" and (__package__ is None or __package__==''):
parent_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.insert(0, parent_dir)
import examples
__package__ = "examples"
import pyqtgraph as pg
import subprocess
from pyqtgraph.python2_3 import basestring
from pyqtgraph.Qt import QtGui, QT_LIB
from .utils import buildFileList, testFile, path, examples
if QT_LIB == 'PySide':
from .exampleLoaderTemplate_pyside import Ui_Form
elif QT_LIB == 'PySide2':
from .exampleLoaderTemplate_pyside2 import Ui_Form
elif QT_LIB == 'PyQt5':
from .exampleLoaderTemplate_pyqt5 import Ui_Form
else:
from .exampleLoaderTemplate_pyqt import Ui_Form
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)
self.codeBtn = QtGui.QPushButton('Run Edited Code')
self.codeLayout = QtGui.QGridLayout()
self.ui.codeView.setLayout(self.codeLayout)
self.codeLayout.addItem(QtGui.QSpacerItem(100,100,QtGui.QSizePolicy.Expanding,QtGui.QSizePolicy.Expanding), 0, 0)
self.codeLayout.addWidget(self.codeBtn, 1, 1)
self.codeBtn.hide()
global examples
self.itemCache = []
self.populateTree(self.ui.exampleTree.invisibleRootItem(), examples)
self.ui.exampleTree.expandAll()
self.resize(1000,500)
self.show()
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)
self.ui.codeView.textChanged.connect(self.codeEdited)
self.codeBtn.clicked.connect(self.runEditedCode)
def populateTree(self, root, examples):
for key, val in examples.items():
item = QtGui.QTreeWidgetItem([key])
self.itemCache.append(item) # PyQt 4.9.6 no longer keeps references to these wrappers,
# so we need to make an explicit reference or else the .file
# attribute will disappear.
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, edited=False):
extra = []
qtLib = str(self.ui.qtLibCombo.currentText())
gfxSys = str(self.ui.graphicsSystemCombo.currentText())
if qtLib != 'default':
extra.append(qtLib.lower())
elif gfxSys != 'default':
extra.append(gfxSys)
if edited:
path = os.path.abspath(os.path.dirname(__file__))
proc = subprocess.Popen([sys.executable, '-'] + extra, stdin=subprocess.PIPE, cwd=path)
code = str(self.ui.codeView.toPlainText()).encode('UTF-8')
proc.stdin.write(code)
proc.stdin.close()
else:
fn = self.currentFile()
if fn is None:
return
if sys.platform.startswith('win'):
os.spawnl(os.P_NOWAIT, sys.executable, '"'+sys.executable+'"', '"' + fn + '"', *extra)
else:
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
if os.path.isdir(fn):
fn = os.path.join(fn, '__main__.py')
text = open(fn).read()
self.ui.codeView.setPlainText(text)
self.ui.loadedFileLabel.setText(fn)
self.codeBtn.hide()
def codeEdited(self):
self.codeBtn.show()
def runEditedCode(self):
self.loadFile(edited=True)
def run():
app = QtGui.QApplication([])
loader = ExampleLoader()
app.exec_()
if __name__ == '__main__':
args = sys.argv[1:]
if '--test' in args:
# get rid of orphaned cache files first
pg.renamePyc(path)
files = buildFileList(examples)
if '--pyside' in args:
lib = 'PySide'
elif '--pyqt' in args or '--pyqt4' in args:
lib = 'PyQt4'
elif '--pyqt5' in args:
lib = 'PyQt5'
else:
lib = ''
exe = sys.executable
print("Running tests:", lib, sys.executable)
for f in files:
testFile(f[0], f[1], exe, lib)
else:
run()