打印JComponent [英] Printing JComponent

问题描述

我需要能够以某种方式打印JComponent，因此它看起来很棒。不要问我有什么可怕的，因为我不知道。

I am required to be able to print a JComponent in a fashion so it looks awesome. Don't ask me what awesome is as I don't know either.

对于x和y格式的页面，JComponent都要求太大。我需要将相同的JComponent打印到在给定y坐标处分割的许多页面中。

The JComponent is required to be too big for a page both in a x and y format. I am required to print the same JComponent into many pages split at a given y coordinate.

我尝试过缩放JComponent，但是在选择给定的y坐标时遇到问题并使它看起来很好。

I have tried just scale the JComponent, though get problems to select a given y coordinate and to make it look good.

我试图将JComponent更改为给定的大小，但是给定的y坐标有问题，JComponent看起来不那么好，我遇到很多问题如果程序被更改了。

I have tried to change the JComponent to a given size, though then a given y coordinate is problematic, the JComponent don't look so good and I get lots of problems if the program is changed.

所以现在我坐在这里，不知道该怎么做，因为似乎完全缺乏关于该主题的在线教程.. 。

So now I sit here and don't know what to do as there seems to be a total lack of tutorials online on the topic...

Word和其他基于文本的程序如何实现这一目标？

How do Word and other text based programs accomplish this?

祝你好运，
Skarion

Best regards, Skarion

推荐答案

这是我必须说的一个常见问题。
这些教程对我有用：

This is a common problem I must say I faced it already. Useful for me were these tutorials:

1. Tutorial1 ---它描述的问题显示了页面的外观等。

1. Tutorial1 --- It describes the problem shows how a page looks like etc.

Tutorial2 ---这里有一个很好的工作代码示例，我用它来解决我的问题。作者还介绍了缩放，翻译等用于打印的内容。

Tutorial2 --- Here you have nice working code example, which I have used in solving my problems. The author also presents use of scaling, translating, etc. for printing.

我希望它也会对你有帮助。

I hope it will help you too.

也许当你更了解你的问题意味着什么很棒时，我可以提供更多帮助。 ：）

Maybe when you know more about what in your problem means awesome, I can help more. :)

EDIT1：

    double scale = 1;
    //scale only when component is wider then a page (page and component widths are doubles)
    if(componentWidth > pageWidth)
        scale = pageWidth/ componentWidth;
    //I first calculate where each page should end 
    //...
    //then when I paint a page I calculate translation over Y for each page
    double translateY = 0;
    //if page index grater then zero then take where the previous page ends
    if(pageIndex > 0)
        translateY = pageHeightEnds.get(pageIndex - 1);
    //shift Graphic to line up with beginning of next page to print
    g2.translate(0f, -translateY);

    g2.setClip(0, (int) Math.round(translateY),(int) Math.round(pageWidth), (int) Math.round(currentPageWidth));
    //  scale the page so the width fits...
    g2.scale(scala, scala);
    componentToPaint.paint(g2); 

祝你好运，博罗。

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