JavaFX的 - 覆蓋根CSS屬性

Question

我知道它可以覆蓋動態CSS使用StyleableObjectProperty的節點定義的屬性。我現在問我如何更改在CSS樣式表中的「.root」類中聲明的根屬性，以便所有節點都將繼承此更改。

我想例如更改用於我的應用程序中的所有文本的字體顏色屬性。該顏色可以在應用程序中動態更改，並且應用於使用它的所有節點。

感謝

Answer 1

一般來說，搞清楚CSS設置你的最好的辦法是看source code默認樣式表。

例如，字體顏色實際上是通過根據背景的強度自動選擇三種固定字體顏色中的一種來管理的（例如，您不會以白色背景上的白色文本結束）：

/* One of these colors will be chosen based upon a ladder calculation 
* that uses the brightness of a background color. Instead of using these 
* colors directly as -fx-text-fill values, the sections in this file should 
* use a derived color to match the background in use. See also: 
* 
* -fx-text-base-color for text on top of -fx-base, -fx-color, and -fx-body-color 
* -fx-text-background-color for text on top of -fx-background 
* -fx-text-inner-color for text on top of -fx-control-inner-color 
* -fx-selection-bar-text for text on top of -fx-selection-bar 
*/ 
-fx-dark-text-color: black; 
-fx-mid-text-color: #333; 
-fx-light-text-color: white; 

所以，你可以像

.root { 
    -fx-dark-text-color: navy; 
    -fx-mid-text-color: blue; 
    -fx-light-text-color: lightskyblue; 
} 

在外部樣式表

的東西覆蓋這些，它將改變整個應用程序的字體顏色。 （如果你肯定你的背景永遠不會成爲一個問題，你可以讓他們都相同的顏色，但我不會建議。）

這裏設置的屬性實際上是「查到的顏色」。由於查找顏色的值是從父節點繼承的，因此這些值將應用於整個場景圖。

如果你想從代碼做到這一點，就可以達到同樣的用

root.setStyle(
    "-fx-dark-text-color: navy ;"+ 
    "-fx-mid-text-color: blue ;"+ 
    "-fx-light-text-color: lightskyblue ;"); 

Answer 2

這是modena.css @ jfxrt.jar（COM /陽光/ JavaFX的/場景/控制/皮膚/） - 在JavaFX運行時JAR文件中找到。雖然，caspian.css可能是默認的樣式表。
的-fx-base: #ececec;對您的應用程序一個巨大的整體效果。

//add css example 
scene.getStylesheets().add(getClass() 
       .getResource("/theshow/jimmylandstudios/gui/THESHOW5.css") 
       .toExternalForm()); 

 
/******************************************************************************* 
*                    * 
* CSS Styles for core infrastructure bits. The .root section provides the * 
* overall default colors used by the rest of the sections.     * 
*                    * 
******************************************************************************/ 

.root { 
    /*************************************************************************** 
    *                   * 
    * The main color palette from which the rest of the colors are derived. * 
    *                   * 
    **************************************************************************/ 

    /* A light grey that is the base color for objects. Instead of using 
    * -fx-base directly, the sections in this file will typically use -fx-color. 
    */ 
    -fx-base: #ececec; 

    /* A very light grey used for the background of windows. See also 
    * -fx-text-background-color, which should be used as the -fx-text-fill 
    * value for text painted on top of backgrounds colored with -fx-background. 
    */ 
    -fx-background: derive(-fx-base,26.4%); 

    /* Used for the inside of text boxes, password boxes, lists, trees, and 
    * tables. See also -fx-text-inner-color, which should be used as the 
    * -fx-text-fill value for text painted on top of backgrounds colored 
    * with -fx-control-inner-background. 
    */ 
    -fx-control-inner-background: derive(-fx-base,80%); 
    /* Version of -fx-control-inner-background for alternative rows */ 
    -fx-control-inner-background-alt: derive(-fx-control-inner-background,-2%); 

    /* One of these colors will be chosen based upon a ladder calculation 
    * that uses the brightness of a background color. Instead of using these 
    * colors directly as -fx-text-fill values, the sections in this file should 
    * use a derived color to match the background in use. See also: 
    * 
    * -fx-text-base-color for text on top of -fx-base, -fx-color, and -fx-body-color 
    * -fx-text-background-color for text on top of -fx-background 
    * -fx-text-inner-color for text on top of -fx-control-inner-color 
    * -fx-selection-bar-text for text on top of -fx-selection-bar 
    */ 
    -fx-dark-text-color: black; 
    -fx-mid-text-color: #333; 
    -fx-light-text-color: white; 

    /* A bright blue for highlighting/accenting objects. For example: selected 
    * text; selected items in menus, lists, trees, and tables; progress bars */ 
    -fx-accent: #0096C9; 

    /* Default buttons color, this is similar to accent but more subtle */ 
    -fx-default-button: #ABD8ED; 

    /* A bright blue for the focus indicator of objects. Typically used as the 
    * first color in -fx-background-color for the "focused" pseudo-class. Also 
    * typically used with insets of -1.4 to provide a glowing effect. 
    */ 
    -fx-focus-color: #039ED3; 
    -fx-faint-focus-color: #039ED322; 

    /* The color that is used in styling controls. The default value is based 
    * on -fx-base, but is changed by pseudoclasses to change the base color. 
    * For example, the "hover" pseudoclass will typically set -fx-color to 
    * -fx-hover-base (see below) and the "armed" pseudoclass will typically 
    * set -fx-color to -fx-pressed-base. 
    */ 
    -fx-color: -fx-base; 

    /* Chart Color Palette */ 
    CHART_COLOR_1: #f3622d; 
    CHART_COLOR_2: #fba71b; 
    CHART_COLOR_3: #57b757; 
    CHART_COLOR_4: #41a9c9; 
    CHART_COLOR_5: #4258c9; 
    CHART_COLOR_6: #9a42c8; 
    CHART_COLOR_7: #c84164; 
    CHART_COLOR_8: #888888; 
    /* Chart Color Palette Semi-Transparent 
    * These are used by charts that need semi transparent versions of the above colors, such as BubbleChart. They 
    * are exactly the same colors as above just with alpha 
    * 
    * 20% opacity 
    */ 
    CHART_COLOR_1_TRANS_20: #f3622d33; 
    CHART_COLOR_2_TRANS_20: #fba71b33; 
    CHART_COLOR_3_TRANS_20: #57b75733; 
    CHART_COLOR_4_TRANS_20: #41a9c933; 
    CHART_COLOR_5_TRANS_20: #4258c933; 
    CHART_COLOR_6_TRANS_20: #9a42c833; 
    CHART_COLOR_7_TRANS_20: #c8416433; 
    CHART_COLOR_8_TRANS_20: #88888833; 
    /* 70% opacity */ 
    CHART_COLOR_1_TRANS_70: #f3622db3; 
    CHART_COLOR_2_TRANS_70: #fba71bb3; 
    CHART_COLOR_3_TRANS_70: #57b757b3; 
    CHART_COLOR_4_TRANS_70: #41a9c9b3; 
    CHART_COLOR_5_TRANS_70: #4258c9b3; 
    CHART_COLOR_6_TRANS_70: #9a42c8b3; 
    CHART_COLOR_7_TRANS_70: #c84164b3; 
    CHART_COLOR_8_TRANS_70: #888888b3; 

    /*************************************************************************** 
    *                   * 
    * Colors that are derived from the main color palette.     * 
    *                   * 
    **************************************************************************/ 

    /* A little lighter than -fx-base and used as the -fx-color for the 
    * "hovered" pseudoclass state. 
    */ 
    -fx-hover-base: ladder(
     -fx-base, 
     derive(-fx-base,20%) 20%, 
     derive(-fx-base,30%) 35%, 
     derive(-fx-base,40%) 50% 
    ); 

    /* A little darker than -fx-base and used as the -fx-color for the 
    * "armed" pseudoclass state. 
    * 
    * TODO: should this be renamed to -fx-armed-base? 
    */ 
    -fx-pressed-base: derive(-fx-base,-6%); 

    /* The color to use for -fx-text-fill when text is to be painted on top of 
    * a background filled with the -fx-background color. 
    */ 
    -fx-text-background-color: ladder(
     -fx-background, 
     -fx-light-text-color 45%, 
     -fx-dark-text-color 46%, 
     -fx-dark-text-color 59%, 
     -fx-mid-text-color 60% 
    ); 

    /* A little darker than -fx-color and used to draw boxes around objects such 
    * as progress bars, scroll bars, scroll panes, trees, tables, and lists. 
    */ 
    -fx-box-border: ladder(
     -fx-color, 
     black 20%, 
     derive(-fx-color,-15%) 30% 
    ); 

    /* Darker than -fx-background and used to draw boxes around text boxes and 
    * password boxes. 
    */ 
    -fx-text-box-border: ladder(
     -fx-background, 
     black 10%, 
     derive(-fx-background, -15%) 30% 
    ); 

    /* Lighter than -fx-background and used to provide a small highlight when 
    * needed on top of -fx-background. This is never a shadow in Modena but 
    * keep -fx-shadow-highlight-color name to be compatible with Caspian. 
    */ 
    -fx-shadow-highlight-color: ladder(
     -fx-background, 
     rgba(255,255,255,0.07) 0%, 
     rgba(255,255,255,0.07) 20%, 
     rgba(255,255,255,0.07) 70%, 
     rgba(255,255,255,0.7) 90%, 
     rgba(255,255,255,0.75) 100% 
    ); 

    /* A gradient that goes from a little darker than -fx-color on the top to 
    * even more darker than -fx-color on the bottom. Typically is the second 
    * color in the -fx-background-color list as the small thin border around 
    * a control. It is typically the same size as the control (i.e., insets 
    * are 0). 
    */ 
    -fx-outer-border: derive(-fx-color,-23%); 

    /* A gradient that goes from a bit lighter than -fx-color on the top to 
    * a little darker at the bottom. Typically is the third color in the 
    * -fx-background-color list as a thin highlight inside the outer border. 
    * Insets are typically 1. 
    */ 
    -fx-inner-border: linear-gradient(to bottom, 
       ladder(
        -fx-color, 
        derive(-fx-color,30%) 0%, 
        derive(-fx-color,20%) 40%, 
        derive(-fx-color,25%) 60%, 
        derive(-fx-color,55%) 80%, 
        derive(-fx-color,55%) 90%, 
        derive(-fx-color,75%) 100% 
       ), 
       ladder(
        -fx-color, 
        derive(-fx-color,20%) 0%, 
        derive(-fx-color,10%) 20%, 
        derive(-fx-color,5%) 40%, 
        derive(-fx-color,-2%) 60%, 
        derive(-fx-color,-5%) 100% 
       )); 
    -fx-inner-border-horizontal: linear-gradient(to right, derive(-fx-color,55%), derive(-fx-color,-5%)); 
    -fx-inner-border-bottomup: linear-gradient(to top, derive(-fx-color,55%), derive(-fx-color,-5%)); 

    /* A gradient that goes from a little lighter than -fx-color at the top to 
    * a little darker than -fx-color at the bottom and is used to fill the 
    * body of many controls such as buttons. 
    */ 
    -fx-body-color: linear-gradient(to bottom, 
      ladder(
       -fx-color, 
       derive(-fx-color,8%) 75%, 
       derive(-fx-color,10%) 80% 
      ), 
      derive(-fx-color,-8%)); 
    -fx-body-color-bottomup: linear-gradient(to top, derive(-fx-color,10%) ,derive(-fx-color,-6%)); 
    -fx-body-color-to-right: linear-gradient(to right, derive(-fx-color,10%) ,derive(-fx-color,-6%)); 

    /* The color to use as -fx-text-fill when painting text on top of 
    * backgrounds filled with -fx-base, -fx-color, and -fx-body-color. 
    */ 
    -fx-text-base-color: ladder(
     -fx-color, 
     -fx-light-text-color 45%, 
     -fx-dark-text-color 46%, 
     -fx-dark-text-color 59%, 
     -fx-mid-text-color 60% 
    ); 

    /* The color to use as -fx-text-fill when painting text on top of 
    * backgrounds filled with -fx-control-inner-background. 
    */ 
    -fx-text-inner-color: ladder(
     -fx-control-inner-background, 
     -fx-light-text-color 45%, 
     -fx-dark-text-color 46%, 
     -fx-dark-text-color 59%, 
     -fx-mid-text-color 60% 
    ); 

    /* The color to use for small mark-like objects such as checks on check 
    * boxes, filled in circles in radio buttons, arrows on scroll bars, etc. 
    */ 
    -fx-mark-color: ladder(
     -fx-color, 
     white 30%, 
     derive(-fx-color,-63%) 31% 
    ); 

    /* The small thin light "shadow" for mark-like objects. Typically used in 
    * conjunction with -fx-mark-color with an insets of 1 0 -1 0. */ 
    -fx-mark-highlight-color: ladder(
     -fx-color, 
     derive(-fx-color,80%) 60%, 
     white 70% 
    ); 

    /* Background for items in list like things such as menus, lists, trees, 
    * and tables. */ 
    -fx-selection-bar: -fx-accent; 

    /* Background color to use for selection of list cells etc. This is when 
    * the control doesn't have focus or the row of a previously selected item. */ 
    -fx-selection-bar-non-focused: lightgrey; 

    /* The color to use as -fx-text-fill when painting text on top of 
    * backgrounds filled with -fx-selection-bar. 
    * 
    * TODO: this can be removed 
    */ 
    -fx-selection-bar-text: -fx-text-background-color; 

    /* These are needed for Popup */ 
    -fx-background-color: inherit; 
    -fx-background-radius: inherit; 
    -fx-background-insets: inherit; 
    -fx-padding: inherit; 

    /* The color to use in ListView/TreeView/TableView to indicate hover. */ 
    -fx-cell-hover-color: #cce3f4; 

    /** Focus line for keyboard focus traversal on cell based controls */ 
    -fx-cell-focus-inner-border: derive(-fx-selection-bar,30%); 

    /* The colors to use in Pagination */ 
    -fx-page-bullet-border: #acacac; 
    -fx-page-indicator-hover-border: #accee5; 

    -fx-focused-text-base-color : ladder(
     -fx-selection-bar, 
     -fx-light-text-color 45%, 
     -fx-dark-text-color 46%, 
     -fx-dark-text-color 59%, 
     -fx-mid-text-color 60% 
    ); 
    -fx-focused-mark-color : -fx-focused-text-base-color ; 

    /*************************************************************************** 
    *                   * 
    * Set the default background color for the scene       * 
    *                   * 
    **************************************************************************/ 

    -fx-background-color: -fx-background; 
}