diff options
| -rw-r--r-- | src/main/java/io/github/cottonmc/cotton/gui/widget/WBox.java | 79 |
1 files changed, 77 insertions, 2 deletions
diff --git a/src/main/java/io/github/cottonmc/cotton/gui/widget/WBox.java b/src/main/java/io/github/cottonmc/cotton/gui/widget/WBox.java index b7fe4c2..60944fe 100644 --- a/src/main/java/io/github/cottonmc/cotton/gui/widget/WBox.java +++ b/src/main/java/io/github/cottonmc/cotton/gui/widget/WBox.java @@ -21,6 +21,13 @@ public class WBox extends WPanel { protected Axis axis; /** + * The alignment for this box's children. + * + * @since 2.1.0 + */ + protected Alignment alignment = Alignment.START; + + /** * Constructs a box. * * @param axis the box axis @@ -62,10 +69,41 @@ public class WBox extends WPanel { for (int i = 0; i < children.size(); i++) { WWidget child = children.get(i); + if (axis == Axis.HORIZONTAL) { - child.setLocation(dimension, 0); + int y; + + switch (alignment) { + case START: + default: + y = 0; + break; + case CENTER: + y = (getHeight() - child.getHeight()) / 2; + break; + case END: + y = getHeight() - child.getHeight(); + break; + } + + child.setLocation(dimension, y); } else { - child.setLocation(0, dimension); + int x; + + switch (alignment) { + case START: + default: + x = 0; + break; + case CENTER: + x = (getWidth() - child.getWidth()) / 2; + break; + case END: + x = getWidth() - child.getWidth(); + break; + } + + child.setLocation(x, dimension); } if (child instanceof WPanel) ((WPanel) child).layout(); @@ -120,4 +158,41 @@ public class WBox extends WPanel { this.axis = Objects.requireNonNull(axis, "axis"); return this; } + + /** + * Gets the alignment of this box. + * + * @return the alignment + * @since 2.1.0 + */ + public Alignment getAlignment() { + return alignment; + } + + /** + * Sets the alignment of this box. + * + * @param alignment the new alignment + * @return this box + * @throws NullPointerException if the alignment is null + * @since 2.1.0 + */ + public WBox setAlignment(Alignment alignment) { + this.alignment = Objects.requireNonNull(alignment, "alignment"); + return this; + } + + /** + * All possible alignments for children in a {@link WBox}. + * + * @since 2.1.0 + */ + public enum Alignment { + /** Aligned on the start of the axis, i.e. left or up. This is the default. */ + START, + /** Centered on the axis. */ + CENTER, + /** Aligned on the end of the axis, i.e. right or down. */ + END; + } } |