@Override
public void drag(
Collection<Direction> resizeDirection,
int diffX,
int diffY,
Point mousePosBeforeDrag,
boolean isShiftKeyDown,
boolean firstDrag,
StickableMap stickables,
boolean undoable) {
Rectangle oldRect = getRectangle();
StickingPolygon stickingPolygonBeforeLocationChange = generateStickingBorder();
String oldAddAttr = getAdditionalAttributes();
if (resizeDirection.isEmpty()) { // Move GridElement
setLocationDifference(diffX, diffY);
} else { // Resize GridElement
Rectangle rect = getRectangle();
if (isShiftKeyDown && diagonalResize(resizeDirection)) { // Proportional Resize
boolean mouseToRight = diffX > 0 && diffX > diffY;
boolean mouseDown = diffY > 0 && diffY > diffX;
boolean mouseLeft = diffX < 0 && diffX < diffY;
boolean mouseUp = diffY < 0 && diffY < diffX;
if (mouseToRight || mouseLeft) {
diffY = diffX;
}
if (mouseDown || mouseUp) {
diffX = diffY;
}
}
if (resizeDirection.contains(Direction.LEFT) && resizeDirection.contains(Direction.RIGHT)) {
rect.setX(rect.getX() - diffX / 2);
rect.setWidth(Math.max(rect.getWidth() + diffX, minSize()));
} else if (resizeDirection.contains(Direction.LEFT)) {
int newWidth = rect.getWidth() - diffX;
if (newWidth >= minSize()) {
rect.setX(rect.getX() + diffX);
rect.setWidth(newWidth);
}
} else if (resizeDirection.contains(Direction.RIGHT)) {
rect.setWidth(Math.max(rect.getWidth() + diffX, minSize()));
}
if (resizeDirection.contains(Direction.UP)) {
int newHeight = rect.getHeight() - diffY;
if (newHeight >= minSize()) {
rect.setY(rect.getY() + diffY);
rect.setHeight(newHeight);
}
}
if (resizeDirection.contains(Direction.DOWN)) {
rect.setHeight(Math.max(rect.getHeight() + diffY, minSize()));
}
setRectangle(rect);
updateModelFromText();
}
moveStickables(stickables, undoable, oldRect, stickingPolygonBeforeLocationChange, oldAddAttr);
}
/**
* realigns a rectangle to the grid enlarging any side if necessary (eg: x=9, width=10, x2=19 will
* be realigned to x=0, width=20, x2=20)
*
* @param rectangle rectangle to realign
* @return a realigned copy of the input rectangle
* @param realignHeightAndWidth if true height and width are also realigned if necessary
*/
public static Rectangle realignToGrid(Rectangle rectangle, boolean realignHeightAndWidth) {
int x = realignToGrid(false, rectangle.getX(), false);
int y = realignToGrid(false, rectangle.getY(), false);
if (realignHeightAndWidth) {
int width =
realignToGrid(
false,
rectangle.getX() - x + rectangle.getWidth(),
true); // IMPORTANT: the difference from original x and realigned x must be added,
// otherwise the upper example would return x=0, width=10, x2=10. x2 would be
// too small
int height = realignToGrid(false, rectangle.getY() - y + rectangle.getHeight(), true);
return new Rectangle(x, y, width, height);
} else {
return new Rectangle(x, y, rectangle.getWidth(), rectangle.getHeight());
}
}