我做错了什么？
这是我的代码摘录
public void createPartControl(Composite parent) {
parent.setLayout(new FillLayout());
ScrolledComposite scrollBox = new ScrolledComposite(parent,SWT.V_SCROLL);
scrollBox.setExpandHorizontal(true);
mParent = new Composite(scrollBox,SWT.NONE);
scrollBox.setContent(mParent);
FormLayout layout = new FormLayout();
mParent.setLayout(layout);
// Adds a bunch of controls here
mParent.layout();
mParent.setSize(mParent.computeSize(SWT.DEFAULT,SWT.DEFAULT,true));
}
但它剪辑最后一个按钮：
bigbrother82：没有工作.
SCdF：我试过你的建议,现在滚动条已经消失了.我需要更多的工作.
解决方法
当使用ScrolledComposite时,这是一个常见的障碍.当SC变得如此之小以至于必须显示滚动条时,客户端控件必须水平收缩以为滚动条腾出空间.这具有使一些标签换行的副作用,这使得以下控件进一步向下移动,这增加了内容复合体所需的最小高度.
您需要监听内容复合(mParent)上的宽度更改,再次给出新的内容宽度计算最小高度,并在带有新高度的滚动复合文件上调用setMinHeight().
public void createPartControl(Composite parent) {
parent.setLayout(new FillLayout());
ScrolledComposite scrollBox = new ScrolledComposite(parent,SWT.V_SCROLL);
scrollBox.setExpandHorizontal(true);
scrollBox.setExpandVertical(true);
// Using 0 here ensures the horizontal scroll bar will never appear. If
// you want the horizontal bar to appear at some threshold (say 100
// pixels) then send that value instead.
scrollBox.setMinWidth(0);
mParent = new Composite(scrollBox,SWT.NONE);
FormLayout layout = new FormLayout();
mParent.setLayout(layout);
// Adds a bunch of controls here
mParent.addListener(SWT.Resize,new Listener() {
int width = -1;
public void handleEvent(Event e) {
int newWidth = mParent.getSize().x;
if (newWidth != width) {
scrollBox.setMinHeight(mParent.computeSize(newWidth,SWT.DEFAULT).y);
width = newWidth;
}
}
}
// Wait until here to set content pane. This way the resize listener will
// fire when the scrolled composite first resizes mParent,which in turn
// computes the minimum height and calls setMinHeight()
scrollBox.setContent(mParent);
}
在侦听大小更改时,请注意,我们忽略宽度保持不变的任何大小调整事件.这是因为内容高度的变化不会影响内容的最小高度,只要宽度相同即可.
