/**
* Used inside the getSizeDeltaToFitAnchors operation. It's goal is to modify a SizeDelta in order
* to keep fitting an anchor within the figureBounds
*
* @param anchor The anchor whose position will be kept
* @param sizeDelta
* @param preserveAxis
* @param figureBounds
*/
protected static void modifySizeDeltaToFitAnchor(
IdentityAnchor anchor, Dimension sizeDelta, int preserveAxis, Rectangle figureBounds) {
if (anchor == null) {
return;
}
PrecisionPoint pp = BaseSlidableAnchor.parseTerminalString(anchor.getId());
int margin = 6;
if (preserveAxis == PRESERVE_Y || preserveAxis == PRESERVE_XY) {
int anchorYPos = (int) Math.round(figureBounds.height * pp.preciseY);
int newHeight = figureBounds.height + sizeDelta.height;
if (anchorYPos + margin > newHeight) {
sizeDelta.height = (anchorYPos - figureBounds.height) + margin;
}
}
if (preserveAxis == PRESERVE_X || preserveAxis == PRESERVE_XY) {
int anchorXPos = (int) Math.round(figureBounds.width * pp.preciseX);
int newWidth = figureBounds.width + sizeDelta.width;
if (anchorXPos + margin > newWidth) {
sizeDelta.width = (anchorXPos - figureBounds.width) + margin;
}
}
}
/**
* Returns the new anchor's position to preserve it's position after
*
* @param anchor
* @return the new IdStr
*/
protected String getNewIdStr(IdentityAnchor anchor) {
Dimension sizeDelta = getSizeDelta();
Rectangle figureBounds = getFigureBounds();
PrecisionPoint pp = BaseSlidableAnchor.parseTerminalString(anchor.getId());
if (getPreserveAxis() == PRESERVE_Y || getPreserveAxis() == PRESERVE_XY) {
int anchorYPos = (int) Math.round(figureBounds.height * pp.preciseY);
pp.preciseY = (double) anchorYPos / (figureBounds.height + sizeDelta.height);
// If the resize direction is NORTH, the location of the figure move, but the anchor stay
// visually at the same location
if (PositionConstants.NORTH == resizeDirection
|| PositionConstants.NORTH_EAST == resizeDirection
|| PositionConstants.NORTH_WEST == resizeDirection) {
pp.preciseY =
pp.preciseY + ((double) sizeDelta.height / (figureBounds.height + sizeDelta.height));
}
if (pp.preciseY > 1.0) {
pp.preciseY = 1.0;
} else if (pp.preciseY < 0.0) {
pp.preciseY = 0.0;
}
}
if (getPreserveAxis() == PRESERVE_X || getPreserveAxis() == PRESERVE_XY) {
int anchorXPos = (int) Math.round(figureBounds.width * pp.preciseX);
pp.preciseX = (double) anchorXPos / (figureBounds.width + sizeDelta.width);
// If the resize direction is WEST, the location of the figure move, but the anchor stay
// visually at the same location
if (PositionConstants.WEST == resizeDirection
|| PositionConstants.NORTH_WEST == resizeDirection
|| PositionConstants.SOUTH_WEST == resizeDirection) {
pp.preciseX =
pp.preciseX + ((double) sizeDelta.width / (figureBounds.width + sizeDelta.width));
}
if (pp.preciseX > 1.0) {
pp.preciseX = 1.0;
} else if (pp.preciseX < 0.0) {
pp.preciseX = 0.0;
}
}
String idStr = (new BaseSlidableAnchor(null, pp)).getTerminal();
return idStr;
}