如何在MFC应用程序中打印QGraphicsTextItem
我在 MFC 应用程序中使用 QGraphicsTextItem 进行文本编辑，然后将结果转换为位图以显示在视图（屏幕）中。但打印时出现问题。例如，如果我打印到 PDF 文件，则文本不可缩放，因为它是位图并且文件大小也很大。
如何在MFC打印框架中打印QGraphicsTextItem？理想的解决方案是我们可以将 QPrinter 连接到 MFC 打印框架中，或者我可以使用 Win32 DC 初始化 QPrinter。 MFC打印框架已经为我准备了打印机和DC，所以我不需要QPrintDialog再次执行该任务。 代码可能是这样的：
QPrinter printer;
printer.paintEngine()->setDC(myHDC); //**Note: this line is imagined by me.
QPainter painter(&printer);
这可能吗？我必须重新实现我自己的 QPrinter 吗？浏览QPrinter的源代码，发现它非常复杂。我希望有一种简单的方法来实现我的目标。如果我必须实现自己的QPrinter，我需要注意什么？有人可以给我一些建议吗？
I have used QGraphicsTextItem in my MFC applications for text editing, then converted the results to a bitmap to show in the view (screen). But it has issues when printing. For example, if I print to a PDF file, the text is not scalable since it is a bitmap and the file size is also big.
How can I print the QGraphicsTextItem in the MFC printing framework? The ideal solution is that we can hook QPrinter into the MFC printing framework or I can initialize QPrinter with Win32 DC. MFC printing framework has prepared printer and DC for me, so I don't need QPrintDialog to do that task again. The code may something like this:
QPrinter printer;
printer.paintEngine()->setDC(myHDC); //**Note: this line is imagined by me.
QPainter painter(&printer);
Is that possible? Do I have to reimplement my own QPrinter? Scanning QPrinter's source code, I found it very complex. I hope there is an easy way to get my goal. If I have to implement my own QPrinter, what should I need to notice? Can anyone give me some advices?
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