Class ComboBoxBaseSkin<T>

    • Constructor Detail

      • ComboBoxBaseSkin

        public ComboBoxBaseSkin​(ComboBoxBase<T> control)
        Creates a new instance of ComboBoxBaseSkin, although note that this instance does not handle any behavior / input mappings - this needs to be handled appropriately by subclasses.
        Parameters:
        control - The control that this skin should be installed onto.
    • Method Detail

      • getDisplayNode

        public abstract Node getDisplayNode​()
        This method should return a Node that will be positioned within the ComboBox 'button' area.
        Returns:
        the node that will be positioned within the ComboBox 'button' area
      • show

        public abstract void show​()
        This method will be called when the ComboBox popup should be displayed. It is up to specific skin implementations to determine how this is handled.
      • hide

        public abstract void hide​()
        This method will be called when the ComboBox popup should be hidden. It is up to specific skin implementations to determine how this is handled.
      • layoutChildren

        protected void layoutChildren​(double x,
                                      double y,
                                      double w,
                                      double h)
        Called during the layout pass of the scenegraph.
        Overrides:
        layoutChildren in class SkinBase<ComboBoxBase<T>>
        Parameters:
        x - the x position
        y - the y position
        w - the width
        h - the height
      • computePrefWidth

        protected double computePrefWidth​(double height,
                                          double topInset,
                                          double rightInset,
                                          double bottomInset,
                                          double leftInset)
        Calculates the preferred width of this SkinBase. The default implementation calculates this width as the width of the area occupied by its managed children when they are positioned at their current positions at their preferred widths.
        Overrides:
        computePrefWidth in class SkinBase<ComboBoxBase<T>>
        Parameters:
        height - the height that should be used if preferred width depends on it
        topInset - the pixel snapped top inset
        rightInset - the pixel snapped right inset
        bottomInset - the pixel snapped bottom inset
        leftInset - the pixel snapped left inset
        Returns:
        the calculated preferred width
      • computePrefHeight

        protected double computePrefHeight​(double width,
                                           double topInset,
                                           double rightInset,
                                           double bottomInset,
                                           double leftInset)
        Calculates the preferred height of this SkinBase. The default implementation calculates this height as the height of the area occupied by its managed children when they are positioned at their current positions at their preferred heights.
        Overrides:
        computePrefHeight in class SkinBase<ComboBoxBase<T>>
        Parameters:
        width - the width that should be used if preferred height depends on it
        topInset - the pixel snapped top inset
        rightInset - the pixel snapped right inset
        bottomInset - the pixel snapped bottom inset
        leftInset - the pixel snapped left inset
        Returns:
        the calculated preferred height
      • computeMaxWidth

        protected double computeMaxWidth​(double height,
                                         double topInset,
                                         double rightInset,
                                         double bottomInset,
                                         double leftInset)
        Computes the maximum allowable width of the Skin, based on the provided height.
        Overrides:
        computeMaxWidth in class SkinBase<ComboBoxBase<T>>
        Parameters:
        height - The height of the Skin, in case this value might dictate the maximum width.
        topInset - the pixel snapped top inset
        rightInset - the pixel snapped right inset
        bottomInset - the pixel snapped bottom inset
        leftInset - the pixel snapped left inset
        Returns:
        A double representing the maximum width of this Skin.
      • computeMaxHeight

        protected double computeMaxHeight​(double width,
                                          double topInset,
                                          double rightInset,
                                          double bottomInset,
                                          double leftInset)
        Computes the maximum allowable height of the Skin, based on the provided width.
        Overrides:
        computeMaxHeight in class SkinBase<ComboBoxBase<T>>
        Parameters:
        width - The width of the Skin, in case this value might dictate the maximum height.
        topInset - the pixel snapped top inset
        rightInset - the pixel snapped right inset
        bottomInset - the pixel snapped bottom inset
        leftInset - the pixel snapped left inset
        Returns:
        A double representing the maximum height of this Skin.
      • computeBaselineOffset

        protected double computeBaselineOffset​(double topInset,
                                               double rightInset,
                                               double bottomInset,
                                               double leftInset)
        Calculates the baseline offset based on the first managed child. If there is no such child, returns Node.getBaselineOffset().
        Overrides:
        computeBaselineOffset in class SkinBase<ComboBoxBase<T>>
        Parameters:
        topInset - the pixel snapped top inset
        rightInset - the pixel snapped right inset
        bottomInset - the pixel snapped bottom inset
        leftInset - the pixel snapped left inset
        Returns:
        baseline offset