Beispiel #1
0
  private Insets getButtonInsets(SynthContext context, Insets insets) {
    // The following calculations are derived from gtkbutton.c
    // (GTK+ version 2.8.20), gtk_button_size_allocate() method.
    int CHILD_SPACING = 1;
    int focusSize = getClassSpecificIntValue(context, "focus-line-width", 1);
    int focusPad = getClassSpecificIntValue(context, "focus-padding", 1);
    int xThickness = getXThickness();
    int yThickness = getYThickness();
    int w = focusSize + focusPad + xThickness + CHILD_SPACING;
    int h = focusSize + focusPad + yThickness + CHILD_SPACING;
    insets.left = insets.right = w;
    insets.top = insets.bottom = h;

    Component component = context.getComponent();
    if ((component instanceof JButton)
        && !(component.getParent() instanceof JToolBar)
        && ((JButton) component).isDefaultCapable()) {
      // Include the default border insets, but only for JButtons
      // that are default capable.  Note that
      // JButton.getDefaultCapable() returns true by default, but
      // GtkToolButtons are never default capable, so we skip this
      // step if the button is contained in a toolbar.
      Insets defaultInsets =
          getClassSpecificInsetsValue(context, "default-border", BUTTON_DEFAULT_BORDER_INSETS);
      insets.left += defaultInsets.left;
      insets.right += defaultInsets.right;
      insets.top += defaultInsets.top;
      insets.bottom += defaultInsets.bottom;
    }

    return insets;
  }
 // Overridden for performance reasons. ---->
 @Override
 public boolean isOpaque() {
   Color back = getBackground();
   Component p = getParent();
   if (Objects.nonNull(p)) {
     p = p.getParent();
   } // p should now be the JTable.
   boolean colorMatch =
       Objects.nonNull(back)
           && Objects.nonNull(p)
           && back.equals(p.getBackground())
           && p.isOpaque();
   return !colorMatch && super.isOpaque();
 }