JTextComponent.print();打印空白 [英] JTextComponent.print(); Prints Blank

问题描述

我正在寻找一种解决方案，根据用户 UI 内容动态生成文本和图像，然后在简单的单击"基础上进行打印.

I am looking for a solution where text and images are dynamically generated based on user UI content, and then printed on a simple "one click" basis.

到目前为止，我的意图(通过做一点研究)是创建一个 JTextComponent，它的内容将根据用户的输入(间接)生成并简单地打印 JTextComponent.这个 JTextComponent 永远不会显示在 UI 的任何地方，只会打印出来.

My intention thus far (from having done a little research) is to create a JTextComponent who's content will be generated based on the user's input (indirectly) and simply print the JTextComponent. This JTextComponent will never be displayed in the UI anywhere, only printed.

到目前为止，我设置了一个临时测试；

So far I set up a temporary test using;

    JTextArea report = new JTextArea("Test Text");
        try {
            report.print();
        } catch (PrinterException ex) {
            ex.printStackTrace();
        }

这会正确显示打印菜单(我稍后会针对出现的菜单进行指定)但会打印空白页.

This brings up the print menu correctly (I will later specify against the menu coming up at all) but prints a blank page.

问题 1:这是一种可行的方法吗?

Q1: Is this a viable way of going about this?

Q2:谁能告诉我为什么页面打印出来是空白的?

Q2: Can anyone tell me why the pages are printing blank?

推荐答案

您应该设置报告的大小.在相反的情况下，它只是 0,0 大小.

You should set the report's size. In opposite case it's just 0,0 sized.

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