如何在SWT表中设置可见行,包括单元格中的小部件? [英] How to set lines visible in SWT table, including widgets in cells?
问题描述
我创建了一个包含SWT的表,我使用TableEditor在表格单元格中包含了SWT小部件,例如Label,Text。但现在我的问题是,表格单元格的轮廓现在不可见。我想让所有列和行的边界可见。怎么做?设置 table.setLinesVisible(true)
不成功!
I created a table with SWT and I included SWT widgets such as Label, Text in the table cells using TableEditor. But now my problem is, the outlines of the table cells are not visible now. I want to make visible all the borders of columns and rows. How to do it? Setting table.setLinesVisible(true)
is not a success!
Table table = new Table(detailArea, SWT.BORDER | SWT.MULTI);
table.setLinesVisible(true);
for (int i = 0; i < 4; i++) {
TableColumn column = new TableColumn(table, SWT.NONE);
column.setWidth(100);
}
TableItem x1= new TableItem(table, SWT.NONE);
TableEditor editorw = new TableEditor(table);
Label lblName =new Label(table, SWT.NONE);
lblName.setBackground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
lblName.setText("Language");
editorw.grabHorizontal = true;
editorw.setEditor(lblName, x1, 0);
editorw = new TableEditor(table);
Text txtLang = new Text(table, SWT.BORDER);
editorw.grabHorizontal = true;
editorw.setEditor(txtLang, x1, 1);
editorw = new TableEditor(table);
Label lblReference = new Label(table,
SWT.NONE);
lblReference.setBackground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
lblReference.setText("Value");
editorw.grabHorizontal = true;
editorw.setEditor(lblReference, x1, 2);
editorw = new TableEditor(table);
Text txtValue= new Text(table, SWT.BORDER);
editorw.grabHorizontal = true;
editorw.setEditor(txtValue, x1, 3);
/////table row 2
TableItem x2= new TableItem(table, SWT.NONE);
editorw = new TableEditor(table);
Label lblName2 =new Label(table, SWT.NONE);
lblName2.setBackground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
lblName2.setText("Language");
editorw.grabHorizontal = true;
editorw.setEditor(lblName2, x2, 0);
editorw = new TableEditor(table);
Text txtLang2 = new Text(table, SWT.BORDER);
editorw.grabHorizontal = true;
editorw.setEditor(txtLang2, x2, 1);
editorw = new TableEditor(table);
Label lblReference2 = new Label(table,
SWT.NONE);
lblReference2.setBackground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
lblReference2.setText("Value");
editorw.grabHorizontal = true;
editorw.setEditor(lblReference2, x2, 2);
editorw = new TableEditor(table);
Text txtValue2= new Text(table, SWT.BORDER);
editorw.grabHorizontal = true;
editorw.setEditor(txtValue2, x2, 3);
table.setLinesVisible(true);
以下是当前输出:
推荐答案
您可以将编辑器小部件(标签和文本)包装到 Composite
中。可以为复合提供边框和可以指定边距的布局:
You can wrap the editor widgets (label and text) into a Composite
. The composite can be given a border and a layout that can specify a margin:
Composite composite = new Composite( table, SWT.BORDER );
GridLayout layout = new GridLayout();
composite.setLayout( layout );
Label label = new Label( composite, SWT.NONE );
GridData gridData = new GridData( SWT.FILL, SWT.FILL, true, true );
gridData.verticalIndent = 2;
gridData.horizontalIndent = 2;
label.setLayoutData( gridData );
editor.setEditor( composite, item, 0 );
另一种方法可能是所有者绘制表项特别是看到 EraseItem
事件可以用于绘制背景。但是我担心,因为你无法影响 TableEditor
的布局,所以编辑器小部件将隐藏所有者绘制的边框。
A different approach might be owner draw table items In particular see the EraseItem
event that can be used to draw the background. However I am afraid that since you cannot influence the TableEditor
's layout, the owner-drawn borders will be hidden by the editor widgets.
请注意,这种方法(无论是初始方法还是复合包装方法)对于几个hundret行都不能很好地扩展。对于每一行,将创建4或8个小部件。根据客户端计算机的性能,在创建多个hundret小部件并最终耗尽句柄时,它会变慢。
Note that this approach (neither your initial nor the composite-wrapped one) will not scale well for several hundret rows. For each row, 4 or 8 widgets will be created. Depending on the client computers performance it will slow down when creating several hundret widgets and eventually run out of handles.
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