Qt 5.10-如何将图表示例添加到布局

Question

It's my very first experience with Qt so i hope its a basic question with a basic answer I couldn't find. I need to add a "custom" chart widget

(like in the following example: https://doc.qt.io/qt-5.10/qtcharts-zoomlinechart-example.html )

to some Qt container like "layout" or "form" . Its very straightforward when you have the widget in the toolbox and you use the designer but since it is a custom widget i cannot do that.

How do you do this in Qt creator?

Answer 1

If your Chart class inherits from QWidget, you have two ways to do this:

1. In the Design mode, put a QWidget on your Window, or into a Layout. Then, right click on it and select "Promote to ...". There, write your class name in "Promoted class name".

2. In your window cpp file, write:

    YourChartClass* ycc = new YourChartClass(this); ycc.show(); 

   or

    YourChartClass* ycc = new YourChartClass(); this->layout()->addWidget(ycc) 

If your chart inherits from another class, and that class inherits from QWidget, the code lines are the same.