CODEWITHSUNDEEP
c++qtresizeqt-creator
Jon
Jon

Reputation: 8531

How to let user vertically resize window

I want the user to be able to vertically resize the Window but I'm unsure how I would do this. I have selected my root object (View of type QWidget) in Qt Creator but I do not see an option to allow users to vertically resize the object. Does this have to be done through code?

Upvotes: 1

Views: 223

Answers (1)

cbuchart
cbuchart

Reputation: 11575

By default, if a QWidget is the top-level window you are able to resize it given that the minimumSize and maximumSize are different since they indicate the range of resizing.

If you want to let the user to resize vertically only, then you just have to set both minimumWidth and maximumWidth to the same value (probably to the current width of your QWidget). Qt will take care of indicating the underlying windows manager the rest.

You can do it in the Designer or programmatically using the setMinimumWidth and setMaximumWidth methods. Edit: As mentioned in a comment, there is a setFixedWidth method that simplifies this operation (and make it more explicit in your code).

Of course, you can play with the combinations such as setting a minimum width (or height, or both -minimum size-) to avoid your top-level window to collapse and become unusable, setting a maximum size... One common setting is making minimumSize = maximumSize, so you make the window fixed size (you can use the convenience method setFixedSize).

PS: see that this has nothing to do with the sizePolicy, which simply indicates parent layout which actions can be taken -regarding size- when placing the widget. As a top-level window has no parent layout this policy is simply not used.

Upvotes: 1

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