获取JTextpane的x，y坐标 [英] Getting x,y co-ordinates of JTextpane

问题描述

我有一个JTextPane，想知道是否有一种方法可以获取当前光标的(x，y)像素位置.我不想要getCaretPosition()中的插入符号位置，而是光标当前所在位置的像素坐标.

我在窗格中使用了可变宽度的字体，因此仅将光标位置乘以某个固定宽度是行不通的.

我需要这样做是因为我希望JPopUpMenu直接出现在光标所在的位置下方，而JPopUpMenu show()方法仅采用(x，y)像素坐标.

感谢所有帮助.

提前致谢.

Hi,

I have a JTextPane and want to know if there is a way to get the (x,y) pixel position of the current cursor. I don''t want the caret position that''s from getCaretPosition(), but the pixel co-ordinates of where the cursor currently is.

I''m using a variable width font in the pane, so simply multiplying the cursor position by some fixed width won''t work.

I need this because I want a JPopUpMenu to appear directly below where the cursor is, and the JPopUpMenu show() method only takes (x,y) pixel coordinates.

All help is appreciated.

Thanks in Advance.

推荐答案

您可以翻译插入符号的位置:

Hi,

You can translate the caret position:

Rectangle caretRectangle = 
   myTextPane.getUI().modelToView(myTextPanepane, myTextPanepane.getCaretPosition());

然后caretRectangle将插入符号的下部和上部的(x，y)(以像素为单位).

希望这会有所帮助，
弗雷德里克(Fredrik)

The caretRectangle will then hold the (x, y) for the lower part and the upper part of the caret in pixels.

Hope this helps,
Fredrik

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