python - Calling a Slot by QtCore.SignalMapper -


i want check users input in several qtgui.qlineedits same function different parameters. tried qtcore.signalmapper. code in test-application:

    self.signalmapper = qtcore.qsignalmapper(self)     qtcore.qobject.connect(self.lineedit_331, qtcore.signal(_fromutf8('returnpressed()')), self.signalmapper.map)     qtcore.qobject.connect(self.lineedit_341, qtcore.signal(_fromutf8("returnpressed()")), self.signalmapper.map)     self.signalmapper.setmapping(self.lineedit_331,'links')     self.signalmapper.setmapping(self.lineedit_341,'rechts')     qtcore.qobject.connect(self.signalmapper, qtcore.signal(_fromutf8("mapped(qstring)")),self.test)

the signalmapper exists , connects return 'true' slot isn't called (the same after changing order of 'connect' , 'setmapping'). connecting lineedits signals slot works:

    qtcore.qobject.connect(self.lineedit_331, qtcore.signal(_fromutf8("returnpressed()")), self.test_1)

what's wrong in code? help

the main thing wrong code, using ugly, error-prone, old-style syntax connecting signals, instead of new-style syntax.

here re-write of example code:

    self.signalmapper = qtcore.qsignalmapper(self)     self.lineedit_331.returnpressed.connect(self.signalmapper.map)     self.lineedit_331.returnpressed.connect(self.signalmapper.map)     self.signalmapper.setmapping(self.lineedit_331, 'links')     self.signalmapper.setmapping(self.lineedit_341, 'rechts')     self.signalmapper.mapped[str].connect(self.test)

if you're curious why original code didn't work, it's because should have used slot in first 2 connections. should have been:

    qtcore.qobject.connect(         self.lineedit_331, qtcore.signal('returnpressed()'),         self.signalmapper, qtcore.slot('map()'))

this because there 2 overloads of qsignalmapper.map, have needed specify 1 intended use.


Comments

Post a Comment

Popular posts from this blog

android - Get AccessToken using signpost OAuth without opening a browser (Two legged Oauth) -

i using signpost oauth access data magento server. have read various tutorials on same , reach point open browser user can enter credentials. however, per requirement have automate part. hence, user should not browser page. have set-up done on server side ( magento ), hit url , returned call page. same through program in android. i have tried below, consumer = new commonshttpoauthconsumer(key, secret); provider = new commonshttpoauthprovider(oauth_init_url,access_token_url, authorize_url); try { provider.retrieverequesttoken(consumer, oauth.out_of_band); log.d("tokens" , consumer.gettoken() + " -- " + consumer.gettokensecret()); } and request tokens. dont know how bypass next step. tried directly accessing accesstoken (stupid of me) provider.retrieveaccesstoken(consumer, "mycallback://callback"); no luck, ends in oauth.signpost.exception.oauthnotauthorizedexception: authorization failed (server replied 401). ...
Read more

org.mockito.exceptions.misusing.InvalidUseOfMatchersException: mockito -

getting error org.mockito.exceptions.misusing.invaliduseofmatchersexception: invalid use of argument matchers! 1 matchers expected, 2 recorded. exception may occur if matchers combined raw values: //incorrect: somemethod(anyobject(), "raw string"); when using matchers, arguments have provided matchers. example: //correct: somemethod(anyobject(), eq("string matcher")); at when( getprogramservice .callservice(any(getprogramtype.class))) .thenreturn(jaxbresponse); please explain error , possible resolution the code posted looks fine; don't see problem it. code before or above causing exception. key here: invalid use of argument matchers! 1 matchers expected, 2 recorded. any , used above, doesn't return "special kind of null" or "special kind of getprogramtype"; don't exist. instead, returns null , side effect puts matcher on stack. whe...
Read more

google shop client API returns 400 bad request error while adding an item -

i'm working on solution add items in google shopping market java application. following tutorial real mess because of missing classes of laste release, after setting 1.5-beta maven managed make base example typecheck correctly classes. still can make simple task of adding 1 item. instead of posting whole code i'm posting part creates product feed. private product createproduct(string id) { product product = new product(); product.title = "red wool sweater"; product.content = new content( "text", "comfortable , soft, sweater keep warm on " + "cold winter nights. red , blue stripes."); product.appcontrol = new appcontrol(); product.appcontrol.addrequireddestination("productads"); product.externalid = id; product.lang = "it"; product.country = "it"; product.condition = "nuovo"; product.price = new price("eu...
Read more