1,在使用TableViewer時,要實現隔列換色是比較容易的,只要在標簽提供器里加上表格的顏色提供器的實現就可以,代碼也很簡單.如下:
public class XXXXLableProvider implements ITableLabelProvider, ITableColorProvider {
??? private Color[] bg = new Color[]{new Color(null, 255,255,255), new Color(null, 247,247,240)};
??? private Color[] force = new Color[]{new Color(null, 0,0,0), new Color(null, 0,0,0)};
??? .....
??? public Color getForeground(Object element, int columnIndex) {
??? ??? return force[columnIndex%2];
??? }
???
??? public Color getBackground(Object element, int columnIndex) {
??? ??? return bg[columnIndex%2];
??? }
}
bg是背景色,分兩種,force是前景色,也是兩種,分別對應,想換成其它的顏色,修改兩個定義部分就可以了.
2,但要實現隔行換色就比較麻煩些了,不過還是可以實現,實現原理也很簡單,就是記錄上一次的對象,與本次對象如果不同就換顏色,否則一直使用當前顏色.代碼如下:
public class XXXXLableProvider implements ITableLabelProvider, ITableColorProvider {
??? private Color[] bg = new Color[]{new Color(null, 255,255,255), new Color(null, 247,247,240)};
??? private Color[] force = new Color[]{new Color(null, 0,0,0), new Color(null, 0,0,0)};
??? private Object current = null;
??? private int currentColor = 0;
??? ......
??? public Color getForeground(Object element, int columnIndex) {
??? ??? return force[currentColor];
??? }
??? public Color getBackground(Object element, int columnIndex) {
??? ??? if (current != element) {
??? ??? ??? currentColor = 1 - currentColor;
??? ??? ??? current = element;
??? ??? }
??? ??? return bg[currentColor];
??? }
}
顏色也是和上面一樣,不過這樣做出來的隔行換色畢竟還不是SWT表格本身支持的,如果表格行沒有充滿,在后面看到的還是表格的背景色(默認白色)
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