implement resize feature

This commit is contained in:
2026-03-19 22:20:23 +01:00
parent 332ac76a23
commit b34ad6a2e4
9 changed files with 249 additions and 9 deletions

View File

@@ -16,6 +16,54 @@ public class STriangle extends AbstractShape {
visitor.visitTriangle(this);
}
@Override
public void resize(ResizeHandle handle, int dx, int dy) {
Rectangle bounds = getBounds();
int delta = Math.max(Math.abs(dx), Math.abs(dy));
boolean shrink = switch (handle) {
case SE -> (dx < 0 || dy < 0);
case NW -> (dx > 0 || dy > 0);
case NE -> (dx < 0);
case SW -> (dx > 0);
case E, W -> (dx < 0);
case N, S -> (dy < 0);
default -> false;
};
int sizeChange = shrink ? -delta : delta;
switch (handle) {
case SE, E, W -> {
bounds.width += sizeChange;
bounds.height += sizeChange;
}
case NW -> {
bounds.x -= sizeChange;
bounds.width += sizeChange;
bounds.y -= sizeChange;
bounds.height += sizeChange;
}
case NE -> {
bounds.y -= sizeChange;
bounds.width += sizeChange;
bounds.height += sizeChange;
}
case SW -> {
bounds.x -= sizeChange;
bounds.width += sizeChange;
bounds.height += sizeChange;
}
case N, S -> {
bounds.width += sizeChange;
bounds.height += sizeChange;
}
}
if (bounds.width < 1) bounds.width = 1;
if (bounds.height < 1) bounds.height = 1;
}
@Override
public Shape clone() {
var color = (ColorAttributes) getAttributes(ColorAttributes.ID);