你可以添加这个css:
.combo-box > .list-cell{
-fx-background-color: -fx-outer-border, white;
-fx-background-insets: 1 -3 1 1, 1 -2 1 1 ;
}
但是要从可编辑的组合框中获取所有样式,您必须从 /jfxrt.jar!/com/sun/javafx/scene/control/skin/modena/modena.css 中找到 .combo-box-base:editable 并将 .text-field 替换为 .list-cell,因为只有可编辑的组合框具有 .text-field
.combo-box > .arrow-button {
-fx-background-color: -fx-shadow-highlight-color, -fx-outer-border, -fx-inner-border, -fx-body-color;
-fx-background-insets: 0 0 -1 0, 0, 1, 2;
-fx-background-radius: 3px, 3px, 2px, 1px;
-fx-padding: 0.333333em 0.666667em 0.333333em 0.666667em; /* 4 8 4 8 */
-fx-text-fill: -fx-text-base-color;
-fx-alignment: CENTER;
-fx-content-display: LEFT;
}
.combo-box > .arrow-button{
-fx-background-color: -fx-outer-border, -fx-inner-border, -fx-body-color;
-fx-background-insets: 1 1 1 0, 1, 2;
-fx-background-radius: 0 3 3 0, 0 2 2 0, 0 1 1 0;
}
.combo-box > .list-cell {
-fx-background-color:
linear-gradient(to bottom, derive(-fx-text-box-border, -10%), -fx-text-box-border),
linear-gradient(from 0px 0px to 0px 5px, derive(-fx-control-inner-background, -9%), -fx-control-inner-background);
-fx-background-insets: 1 0 1 1;
-fx-background-radius: 2 0 0 2;
}
.combo-box:contains-focus {
-fx-background-color: -fx-focus-color;
-fx-background-insets: -0.2;
-fx-background-radius: 3;
}
.combo-box:focused > .list-cell{
-fx-background-color:
-fx-control-inner-background,
-fx-faint-focus-color,
linear-gradient(from 0px 0px to 0px 5px, derive(-fx-control-inner-background, -9%), -fx-control-inner-background);
-fx-background-insets: 1 0 1 1, 1 0 1 1, 3 2 3 3;
-fx-background-radius: 2 0 0 2, 1 0 0 1, 0;
}
.combo-box :contains-focus > .arrow-button{
-fx-background-color: -fx-inner-border, -fx-body-color, -fx-faint-focus-color, -fx-body-color;
-fx-background-insets: 1, 2, 1, 2.6;
-fx-background-radius: 0 2 2 0, 0 1 1 0, 0 1 1 0, 0 1 1 0;
}
结果如下:
只有 2 行样式的第一个框
2-nd 有 testComboBox2.setEditable(true);
使用默认样式的大 css 进行 3-d 样式。