I am new to this Model/View Framework of Qt. In my application I want to have 1000 X 1000 cells. There should be minimum memory requirement & it should be fast. I don't know what this Model terminology is for. But I have my own class which knows how to deal with the double variables stored in the table. Currently I am using QLineEdit's with a Validator to create the array of cells. But it was way too slow for cells > 50 X 50. So I decided to go the good old MS Excel way.
So which Widget should I use: QTableWidget
or QTableView
?
And can anybody please explain in short what this Model/View framework is? I am not a Computer Science guy hence I am finding it tough to understand...
cmannett85's recommendation is a good one. Read the docs about a dozen times.
Then, if performance and memory issues are your primary concern and you think you can out-perform the QTableWidget implementation, then a QTableView interface on top of a QAbstractTableModel or QStandardItemModel is what you're looking for.
Since you're new to Qt's model-view architecture, I'd recommend using the QStandardItemModel until you feel like you're getting the hang of it. If your performance still isn't good enough, avoid a lot of the memory duplication and wasted objects by implementing your custom model. Plus, get yourself a good textbook and read its chapter on the model-view framework about 12 times. That section alone was worth its weight in gold, imho.
Here are the basics for Qt's custom model-view framework:
If you're feeling both cheap and brave, check out this excerpt on implementing your own custom model. Work at it one function at a time and play with it as you go.