JavaFX tableview颜色

Question

我需要创建具有多色行的JavaFx TableView(color1用于低优先级,color2用于中等优先级等).我创建了CellFactory

public class TaskCellFactory implements Callback<TableColumn, TableCell> {

@Override
public TableCell call(TableColumn p) {

   TableCell cell = new TableCell<Task, Object>() {
        @Override
        public void updateItem(Object item, boolean empty) {
            super.updateItem(item, empty);
            setText(empty ? null : getString());
            setGraphic(null);
            TableRow currentRow = getTableRow();
            Task currentTask = currentRow == null ? null : (Task)currentRow.getItem();
            if(currentTask != null){   
                Priority priority = currentTask.getPriority();
                clearPriorityStyle();
                if(!isHover() && !isSelected() && !isFocused()){
                    setPriorityStyle(priority);
                }
            }
        }

        @Override
        public void updateSelected(boolean upd){
            super.updateSelected(upd);
            System.out.println("is update");
        }

        private void clearPriorityStyle(){
            ObservableList<String> styleClasses = getStyleClass();
            styleClasses.remove("priorityLow");
            styleClasses.remove("priorityMedium");
            styleClasses.remove("priorityHigh");
        }

        private void setPriorityStyle(Priority priority){
            switch(priority){
                case LOW:
                    getStyleClass().add("priorityLow");
                    break;
                case MEDIUM:
                    getStyleClass().add("priorityMedium");
                    break;
                case HIGH:
                    getStyleClass().add("priorityHigh");
                    break;
            }
            System.out.println(getStyleClass());
        }

        private String getString() {
            return getItem() == null ? "" : getItem().toString();
        }
    };
    return cell;
} }

和css

.priorityLow{ -fx-background-color: palegreen; }
.priorityMedium{ -fx-background-color: skyblue;}
.priorityHigh{ -fx-background-color: palevioletred;}

但我仍然需要突出显示所选行.我怎样才能做到这一点？

Answer 1

不要在css中设置整个单元格的背景颜色,只需设置-fx-control-inner-background即可.然后你将拥有默认重音,悬停和对焦环仍然可用.当然也要删除你的setPriorityStyle电话周围的if语句.

如果您还想覆盖默认重音(选定)颜色或悬停颜色等内容,您也可以在下面的css中执行此操作 - 不确定是否真的建议使用突出显示覆盖,猜测它取决于您的应用和期望的用户体验.

.priorityLow { 
  -fx-control-inner-background: palegreen;
  -fx-accent: derive(-fx-control-inner-background, -40%);
  -fx-cell-hover-color: derive(-fx-control-inner-background, -20%);
}

.priorityMedium { 
  -fx-control-inner-background: skyblue;
  -fx-accent: derive(-fx-control-inner-background, -40%);
  -fx-cell-hover-color: derive(-fx-control-inner-background, -20%);
}

.priorityHigh { 
  -fx-control-inner-background: palevioletred;
  -fx-accent: derive(-fx-control-inner-background, -40%);
  -fx-cell-hover-color: derive(-fx-control-inner-background, -20%);
}

JavaFX的详细样式信息可以在JavaFX 2.2 的默认caspian.css样式表和JavaFX 2 CSS参考指南中找到.要为您的JavaFX版本找到caspian.css,您可以解开jfxrt.jar(有时可以在jre/lib目录中找到).