如何使 RichTextFx 的外观和感觉类似于 TextArea？

Question

RichTextFx（顶部控件）默认看起来不像 TextArea（底部控件）：

我找到了一种添加圆角的方法（只需从 modena.css 复制和配置some styles）：

.virtualized-scroll-pane {
    -fx-padding: 0;
    -fx-cursor: default;
    -fx-background-color: linear-gradient(to bottom, derive(-fx-text-box-border, -10%), -fx-text-box-border),
        derive(-fx-base,-1%);
}
.virtualized-scroll-pane {
    -fx-background-color: null;
}
.virtualized-scroll-pane > .scroll-bar:horizontal {
    -fx-background-radius: 0 0 2 2;
}
.virtualized-scroll-pane > .scroll-bar:vertical {
    -fx-background-radius: 0 2 2 0;
}
.virtualized-scroll-pane > .corner {
    -fx-background-radius: 0 0 2 0;
}
.virtualized-scroll-pane .code-area {
    /*the is 1px less top and bottom than TextInput because of scrollpane border */
    -fx-padding: 0.25em 0.583em 0.25em 0.583em; /* 3 7 3 7 */
    -fx-cursor: text;
    -fx-background-color:
        linear-gradient(from 0px 0px to 0px 4px, derive(-fx-control-inner-background, -8%), -fx-control-inner-background);
    -fx-background-radius: 2;
}
.virtualized-scroll-pane:focused .code-area {
    -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: 0, 0, 2;
    -fx-background-radius: 2, 1, 0;
}

但不明白如何在非焦点控件周围添加灰色边框和在焦点控件周围添加蓝色边框（即文本控件和滚动条周围）？

似乎配置了here 的聚焦控件的蓝色边框，但以下 CSS 不起作用：

.virtualized-scroll-pane {
    -fx-text-fill: -fx-text-inner-color;
    -fx-highlight-fill: derive(-fx-control-inner-background,-20%);
    -fx-highlight-text-fill: -fx-text-inner-color;
    -fx-prompt-text-fill: derive(-fx-control-inner-background,-30%);
    -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: 0, 1;
    -fx-background-radius: 3, 2;
    -fx-cursor: text;
    -fx-padding: 0.333333em 0.583em 0.333333em 0.583em; /* 4 7 4 7 */
}
.virtualized-scroll-pane:focused {
    -fx-highlight-fill: -fx-accent;
    -fx-highlight-text-fill: white;
    -fx-background-color:
        -fx-focus-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: -0.2, 1, -1.4, 3;
    -fx-background-radius: 3, 2, 4, 0;
    -fx-prompt-text-fill: transparent;
}

据我了解，这是行不通的，因为 .virtualized-scroll-pane 没有集中注意力。

Here 是 Maven 项目，用于重现问题。

那么，如何解决呢？

仅供参考：RichTextFX 0.7-M1，JDK 1.8.0_91-b14

Answer 1

您可以手动切换VirtualizedScrollPane 的focused 伪类，然后您可以在CSS 中使用.virtualized-scroll-pane:focused 选择器：

PseudoClass FOCUSED = PseudoClass.getPseudoClass("focused");
area.focusedProperty().addListener((obs, oldVal, newVal) -> {
    virtualizedScrollPane.pseudoClassStateChanged(FOCUSED, newVal);
});

Answer 2

我找到了以下自定义 RichTextFx 的方法：

对于 0.6.10 版本：

.code-area {
    -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: 0, 1;
    -fx-background-radius: 3, 2;
    -fx-padding: 0.041666625em;
}

.code-area:focused {
    -fx-background-color:
        -fx-focus-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: -0.2, 1, -1.4, 3;
    -fx-background-radius: 3, 2, 4, 0;
}

.code-area .scroll-bar:horizontal {
    -fx-background-radius: 0 0 2 2;
}

.code-area .scroll-bar:vertical {
    -fx-background-radius: 0 2 2 0;
}

对于 0.7-M1（修复了“专注”伪类）：

.virtualized-scroll-pane {
    -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: 0, 1;
    -fx-background-radius: 3, 2;
}

.virtualized-scroll-pane:focused {
    -fx-background-color:
        -fx-focus-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: -0.2, 1, -1.4, 3;
    -fx-background-radius: 3, 2, 4, 0;
}

/* 
I don't understand why this rule fix problem with border around CodeArea.
May be somebody can explain it.
*/
.virtualized-scroll-pane .styled-text-area {
    -fx-background-insets: 0px;
}

.virtualized-scroll-pane .scroll-bar:horizontal {
    -fx-background-radius: 0 0 2 2;

    -fx-padding: 0 0.08333325em 0.08333325em 0.08333325em;
    -fx-border-insets: 0 0.08333325em 0.08333325em 0.08333325em;
    -fx-background-insets: 0 0.08333325em 0.08333325em 0.08333325em;
}

.virtualized-scroll-pane .scroll-bar:vertical {
    -fx-background-radius: 0 2 2 0;

    -fx-padding: 0.08333325em 0.08333325em 0.08333325em 0;
    -fx-border-insets: 0.08333325em 0.08333325em 0.08333325em 0;
    -fx-background-insets: 0.08333325em 0.08333325em 0.08333325em 0;
}

完整版本可在 repository 的单独分支中找到。

未解决的问题：

• 滚动条大小
• 右下角正方形的颜色
• 在文本之前和顶部缩进

也许有人可以提供更好的解决方案？

Answer 3

右下角方块的颜色用这个：

.virtualized-scroll-pane  .scroll-pane .filler {
    -fx-background-color: white;
}

.virtualized-scroll-pane  .scroll-pane .corner {
    -fx-background-color: white;
}