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[processing] some methods to add Processing algorithms in menus and b…
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from qgis.utils import iface | ||
from PyQt4 import QtGui | ||
from processing.core.Processing import Processing | ||
from processing.gui.MessageDialog import MessageDialog | ||
from processing.gui.AlgorithmDialog import AlgorithmDialog | ||
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algorithmsToolbar = None | ||
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def addAlgorithmEntry(algname, menuName, submenuName, actionText = None, icon = None, addButton = False): | ||
alg = Processing.getAlgorithm(algname) | ||
if alg is None: | ||
return | ||
if menuName: | ||
menu = getMenu(menuName, iface.mainWindow().menuBar()) | ||
submenu = getMenu(submenuName, menu) | ||
action = QtGui.QAction(icon or alg.getIcon(), actionText or alg.name, iface.mainWindow()) | ||
action.triggered.connect(lambda: _executeAlgorithm(alg)) | ||
submenu.addAction(action) | ||
if addButton: | ||
global algorithmsToolbar | ||
if algorithmsToolbar is None: | ||
algorithmsToolbar = iface.addToolBar("ProcessingAlgorithms") | ||
algorithmsToolbar.addAction(action) | ||
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def _executeAlgorithm(alg): | ||
message = alg.checkBeforeOpeningParametersDialog() | ||
if message: | ||
dlg = MessageDialog() | ||
dlg.setTitle(tr('Missing dependency')) | ||
dlg.setMessage( | ||
tr('<h3>Missing dependency. This algorithm cannot ' | ||
'be run :-( </h3>\n%s') % message) | ||
dlg.exec_() | ||
return | ||
alg = alg.getCopy() | ||
dlg = alg.getCustomParametersDialog() | ||
if not dlg: | ||
dlg = AlgorithmDialog(alg) | ||
canvas = iface.mapCanvas() | ||
prevMapTool = canvas.mapTool() | ||
dlg.show() | ||
dlg.exec_() | ||
if canvas.mapTool() != prevMapTool: | ||
try: | ||
canvas.mapTool().reset() | ||
except: | ||
pass | ||
canvas.setMapTool(prevMapTool) | ||
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def getMenu(name, parent): | ||
menus = [c for c in parent.children() if isinstance(c, QtGui.QMenu)] | ||
menusDict = {m.title():m for m in menus} | ||
if name in menusDict: | ||
return menusDict[name] | ||
else: | ||
menu = QtGui.QMenu(name, parent) | ||
parent.addMenu(menu) | ||
return menu | ||
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