Linux平台Qt绘图技术问询：Windows应用移植相关疑问

Hey there! Let's tackle your questions about using Qt for porting your Windows app to Linux, especially around chart integration:

1. Qt图表能否放在类MFC对话框的容器中？ #

Absolutely! In Qt, QDialog is the equivalent of MFC's dialog boxes, and you can easily embed Qt's chart components (like those from the Qt Charts module) directly into it. For example, you can create a QChartView (the main widget that displays a QChart), then add it to the QDialog's layout system—just like how you'd add controls to an MFC dialog. Qt's layout system will handle resizing and positioning automatically, which is actually more straightforward than MFC's manual layout setup in many cases.

2. 是否需要类MFC图片控件的组件来承载图表？ #

Nope, you don't need a separate component like MFC's picture control. The QChartView itself is a fully functional Qt Widget that can be placed directly into your dialog, window, or any other container widget. It handles all the rendering and interaction for the chart on its own. That said, if you want to add extra styling, padding, or nest it within a more complex layout, you could wrap it in a QWidget, but this is totally optional—no mandatory "host" control is required.

3. 能否不使用Qt内置组件，转而采用第三方软件实现上述功能？ #

Definitely! Qt is designed to play nice with other libraries, so you can absolutely use third-party charting solutions instead of Qt Charts. Popular options include:

• QCustomPlot: A lightweight, easy-to-integrate library that provides Qt Widgets for plotting, perfect for embedding into dialogs.
• Matplotlib-C++: A C++ wrapper for Python's Matplotlib, if you're already familiar with that ecosystem.
• ChartDirector: A feature-rich commercial library with Qt support.

As long as the third-party library offers a Qt-compatible Widget or can render to a QPainter surface (which Qt uses for drawing), you can embed it into your Qt dialogs just like any other widget. Keep in mind that using third-party libraries may require extra steps for compiling, linking, and managing dependencies, but it's a totally valid approach if Qt Charts doesn't meet your specific needs.

内容的提问来源于stack exchange，提问作者jim