Error: no matching function for call to 'QObject::connect
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wrote on 3 Jan 2018, 22:20 last edited by
Thank you very much for all the help!
The last problem I have is how to pass the label and lineedit to the slot. I don't want to make them global variables. if I create a custom signal with the label and lineedit to match the slot, I'm confused about where to emit the signal.
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Before that, why do you need the
MainWindowContent. It looks like a convoluted mean to create the central widget content. -
wrote on 4 Jan 2018, 01:26 last edited by
I want to keep the logic of how the program progresses from page to page in MainWindow. But I want other classes to generate the pages to be displayed. Basically I want to be able to manage the program without having a single .cpp file that is a thousand lines or so.
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Then why not make them full QWidget derivative ?
That's what is usually done, cut your application in logical pieces and then build as many QWidget based classes as needed to keep the code clean, simple and tidy.
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wrote on 4 Jan 2018, 10:12 last edited by
Can you give an example please? Or direct me to any tutorial on the topic?
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The scribble example is a simple example to start with.
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wrote on 9 Jan 2018, 17:01 last edited by
I went over the example but I still have some difficulty converting it to my use. I created a MainWindowContent that is a subclass of QWidget and created a
QGridLayout* MainWindowContent::getPageWidgetsLayout()the exact same function I provided in the code above.
I don't think that this is the intended goal of this example because in MainWindow an instance of the QWidget subclass (ScribbleArea) is passed to setCentralWidget not a call to a function using the instance. Am I supposed to move all the code from getPageWidgetsLayout() to the constructor and declare the label, lineedit, and pushbutton as private variables.
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No the example shows what I suggested: create a separated widget that encapsulates the functionality of interest and use that one in the MainWindow.
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wrote on 10 Jan 2018, 19:40 last edited by
Finally, I got it to work but I still have the same problem that I started with. How do I pass the line edit and label to the slot?
I searched online and all the examples have a condition other than the button being clicked that emit the signal . Any hints please?
30/30