如何使用我的水平滚轮滚屏触控板,在Java AWT的ScrollPane [英] How to use my trackpad for horizontal mousewheel scrolling in a Java AWT ScrollPane
问题描述
像许多现代鼠标和触控板,我的笔记本电脑支持垂直和水平滚动。这是一个令人上瘾的功能,一旦你习惯了它。我只是希望我的Java应用程序通过触控板/鼠标滚轮支持横向滚动,却处处搜索我看来这是不可能在Java中。
我真的希望有人告诉我,我不知怎么做错了,这个功能已经要求行为:的 http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6440198
由于无法做到这一点简单的事情其实是我工作的应用程序一个大忌。事实上,对于任何应用程序,我可以想像!我已经投入了一点在Java后端的时间,所以我真的很想找到这个看似简单的事情的解决方案。
问题是,我还能有什么来实现这一行为?甚至在Java暴露在我的原始操作系统级别的事件,我会那么需要从头写这个?
进口java.awt中的*。公共类ScrollExample扩展画布{ 公共无效漆(图形G){ g.setColor(Color.green);
g.fillOval(0,0,400,400); } 公共静态无效的主要(字串[] args){ ScrollExample B =新ScrollExample();
架F =新的帧(滚动示例); 滚动窗格滚动=新的滚动面板(ScrollPane.SCROLLBARS_ALWAYS);
scroller.add(二,中心);
f.set preferredSize(新尺寸(500,500));
f.add(中心,滚动条);
f.pack();
f.show(); }}
摇摆例子使用水平和垂直滚动
进口java.awt中的*。
进口的javax.swing *。公共类ScrollExample继承JPanel { 公共无效漆(图形G){ super.paint(G); g.setColor(Color.green);
g.fillOval(0,0,400,400); } 公共静态无效的主要(字串[] args){ JFrame的F =新的JFrame(滚动示例);
ScrollExample P =新ScrollExample();
P.SET preferredSize(新尺寸(1000,1000)); JScrollPane的滚动=新JScrollPane的(P,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
scroller.getHorizontalScrollBar()setUnitIncrement(10)。
scroller.getVerticalScrollBar()setUnitIncrement(10)。 f.set preferredSize(新尺寸(500,500));
f.add(滚轮,BorderLayout.CENTER);
f.pack();
f.show();
}
}
这是默认在Swing虽然垂直scolling支持优先于当两个滚动条是可见的水平滚动。
我希望新的发展,在Swing不是AWT来完成。
编辑:
您应该能够使用鼠标滚轮控制器定制滚动速度。我从来没有尝试过的横向滚动,让我知道如果它的工作原理。
Like many modern mice and trackpads, my laptop supports vertical and horizontal scrolling. It's an addictive feature once you get used to it. I simply want my Java apps to support horizontal scrolling via the trackpad/mousewheel, but everywhere I search it seems that this is not possible in Java.
I really want someone to tell me that I'm somehow doing it wrong, this feature is already requested behaviour: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6440198
The inability to do this simple thing is actually a deal breaker for the app I'm working on. In fact, for any app I can envision! I've invested a bit of time in the Java backend, so I'd really like to find a solution for this seemingly simple thing.
Question is what could I do to implement this behaviour? Are raw OS level events even exposed to me by java, would I then need to write this from scratch?
import java.awt.*;
public class ScrollExample extends Canvas {
public void paint(Graphics g) {
g.setColor(Color.green);
g.fillOval(0,0,400, 400);
}
public static void main(String[] args) {
ScrollExample b = new ScrollExample();
Frame f = new Frame ("Scroll Example");
ScrollPane scroller = new ScrollPane (ScrollPane.SCROLLBARS_ALWAYS);
scroller.add(b,"Center");
f.setPreferredSize(new Dimension(500,500));
f.add ("Center",scroller);
f.pack();
f.show();
}
}
Swing example works with both horizontal and vertical scrolling
import java.awt.*;
import javax.swing.*;
public class ScrollExample extends JPanel {
public void paint(Graphics g) {
super.paint(g);
g.setColor(Color.green);
g.fillOval(0,0,400, 400);
}
public static void main(String[] args) {
JFrame f = new JFrame ("Scroll Example");
ScrollExample p = new ScrollExample();
p.setPreferredSize(new Dimension(1000, 1000));
JScrollPane scroller = new JScrollPane(p,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
scroller.getHorizontalScrollBar().setUnitIncrement(10);
scroller.getVerticalScrollBar().setUnitIncrement(10);
f.setPreferredSize(new Dimension(500,500));
f.add (scroller,BorderLayout.CENTER);
f.pack();
f.show();
}
}
This is supported by default in Swing although vertical scolling has priority over horizontal scrolling when both scrollbars are visible.
I would expect new development to be done in Swing not AWT.
Edit:
You should be able to use the Mouse Wheel Controller to customize the scroll speed. I've never tried it on horizontal scrolling, let me know if it works.
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