GridLayouts
您可以通过使用一组对齐设置为SWT.FILL
并将两个grabExcess*Space
参数设置为 true 来获得我认为您正在寻找的行为(树以及使用所有可用空间的表) 。
试试这个:
@Override
public void createPartControl(Composite parent) {
Composite container = new Composite(parent, SWT.NONE);
GridLayout gl_container = new GridLayout(1, false);
gl_container.horizontalSpacing = 15;
container.setLayout(gl_container);
Composite mainComposite = new Composite(container, SWT.NONE);
mainComposite.setLayout(new GridLayout(1, false));
mainComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
Composite treesComposite = new Composite(mainComposite, SWT.NONE);
treesComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
treesComposite.setLayout(new GridLayout(2, false));
TreeViewer leftTreeViewer = new TreeViewer(treesComposite, SWT.BORDER);
Tree leftTree = leftTreeViewer.getTree();
leftTree.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
TreeViewer rightTreeViewer = new TreeViewer(treesComposite, SWT.BORDER);
Tree rightTree = rightTreeViewer.getTree();
rightTree.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
TableViewer bottomTableViewer = new TableViewer(mainComposite, SWT.BORDER | SWT.FULL_SELECTION);
bottomTable = bottomTableViewer.getTable();
bottomTable.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
}
或者,您可以尝试使用FormLayouts
.
在这里,我使用“分子/偏移”方法指定事物的位置。在您看到0/50/100 之类的数字时,这些数字本质上是可用空间的百分比。像5/-5这样较小的数字是从这些百分比描述的位置的偏移量,以像素为单位;它们在组件之间提供了很小的余量。
@Override
public void createPartControl(Composite parent) {
Composite container = new Composite(parent, SWT.NONE);
GridLayout gl_container = new GridLayout(1, false);
gl_container.horizontalSpacing = 15;
container.setLayout(gl_container);
Composite mainComposite = new Composite(container, SWT.NONE);
mainComposite.setLayout(new FormLayout());
mainComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
Composite treesComposite = new Composite(mainComposite, SWT.NONE);
FormData fd_treesComposite = new FormData();
fd_treesComposite.bottom = new FormAttachment(50);
fd_treesComposite.right = new FormAttachment(100);
fd_treesComposite.top = new FormAttachment(0);
fd_treesComposite.left = new FormAttachment(0);
treesComposite.setLayoutData(fd_treesComposite);
treesComposite.setLayout(new FormLayout());
TreeViewer leftTreeViewer = new TreeViewer(treesComposite, SWT.BORDER);
Tree leftTree = leftTreeViewer.getTree();
FormData fd_leftTree = new FormData();
fd_leftTree.bottom = new FormAttachment(100);
fd_leftTree.right = new FormAttachment(50, -2);
fd_leftTree.top = new FormAttachment(0, 5);
fd_leftTree.left = new FormAttachment(0, 5);
leftTree.setLayoutData(fd_leftTree);
TreeViewer rightTreeViewer = new TreeViewer(treesComposite, SWT.BORDER);
Tree rightTree = rightTreeViewer.getTree();
FormData fd_rightTree = new FormData();
fd_rightTree.bottom = new FormAttachment(100);
fd_rightTree.right = new FormAttachment(100, -5);
fd_rightTree.top = new FormAttachment(0, 5);
fd_rightTree.left = new FormAttachment(50, 3);
rightTree.setLayoutData(fd_rightTree);
TableViewer bottomTableViewer = new TableViewer(mainComposite, SWT.BORDER | SWT.FULL_SELECTION);
bottomTable = bottomTableViewer.getTable();
FormData fd_bottomTable = new FormData();
fd_bottomTable.bottom = new FormAttachment(100, -5);
fd_bottomTable.right = new FormAttachment(100, -5);
fd_bottomTable.top = new FormAttachment(50, 5);
fd_bottomTable.left = new FormAttachment(0, 5);
bottomTable.setLayoutData(fd_bottomTable);
}