/** Invoked when an action occurs. */
public void actionPerformed(final ActionEvent e) {
final ReportSelectionModel model = getSelectionModel();
if (model == null) {
return;
}
final Element[] visualElements = model.getSelectedVisualElements();
if (visualElements.length <= 1) {
return;
}
final Element[] carrier = new Element[1];
final Element[] objects = ModelUtility.filterParents(visualElements);
final MassElementStyleUndoEntryBuilder builder = new MassElementStyleUndoEntryBuilder(objects);
long minY = Long.MAX_VALUE;
long maxY = Long.MIN_VALUE;
for (int j = 0; j < objects.length; j++) {
final Element object = objects[j];
final CachedLayoutData data = ModelUtility.getCachedLayoutData(object);
final long y1 = data.getY();
final long y2 = y1 + data.getHeight();
if (y2 > maxY) {
maxY = y2;
}
if (y1 < minY) {
minY = y1;
}
}
final long centerPoint = minY + (maxY - minY) / 2;
for (int j = 0; j < objects.length; j++) {
final Element object = objects[j];
final CachedLayoutData data = ModelUtility.getCachedLayoutData(object);
final long elementCenter = data.getY() + data.getHeight() / 2;
final long delta = centerPoint - elementCenter;
if (delta == 0) {
continue;
}
carrier[0] = object;
final MoveDragOperation mop =
new MoveDragOperation(
carrier, ORIGIN_POINT, EmptySnapModel.INSTANCE, EmptySnapModel.INSTANCE);
mop.update(new Point2D.Double(0, StrictGeomUtility.toExternalValue(delta)), 1);
mop.finish();
}
final MassElementStyleUndoEntry massElementStyleUndoEntry = builder.finish();
getActiveContext()
.getUndo()
.addChange(
ActionMessages.getString("AlignMiddleAction.UndoName"), massElementStyleUndoEntry);
}
public void update(final Point2D normalizedPoint, final double zoomFactor) {
final SnapPositionsModel horizontalSnapModel = getHorizontalSnapModel();
final Element[] selectedVisualElements = getSelectedVisualElements();
final long originPointX = getOriginPointX();
final long[] elementWidth = getElementWidth();
final long px = StrictGeomUtility.toInternalValue(normalizedPoint.getX());
final long dx = px - originPointX;
for (int i = 0; i < selectedVisualElements.length; i++) {
final Element element = selectedVisualElements[i];
if (element instanceof RootLevelBand) {
continue;
}
final ElementStyleSheet styleSheet = element.getStyle();
final double elementMinWidth =
styleSheet.getDoubleStyleProperty(ElementStyleKeys.MIN_WIDTH, 0);
// this is where I want the element on a global scale...
final long targetWidth = elementWidth[i] + dx;
final CachedLayoutData data = ModelUtility.getCachedLayoutData(element);
final long elementX = data.getX();
final long targetX2 = elementX + targetWidth;
if (elementMinWidth >= 0) {
// absolute position; resolving is easy here
final long snapPosition =
horizontalSnapModel.getNearestSnapPosition(targetX2, element.getObjectID());
if (Math.abs(snapPosition - targetX2) > snapThreshold) {
final long localWidth = Math.max(0, targetX2 - elementX);
final float position = (float) StrictGeomUtility.toExternalValue(localWidth);
styleSheet.setStyleProperty(ElementStyleKeys.MIN_WIDTH, new Float(position));
} else {
final long localWidth = Math.max(0, snapPosition - elementX);
final float position = (float) StrictGeomUtility.toExternalValue(localWidth);
styleSheet.setStyleProperty(ElementStyleKeys.MIN_WIDTH, new Float(position));
}
} else {
final Element parent = element.getParentSection();
final CachedLayoutData parentData = ModelUtility.getCachedLayoutData(parent);
final long parentBase = parentData.getWidth();
if (parentBase > 0) {
// relative position; resolve the percentage against the height of the parent.
final long snapPosition =
horizontalSnapModel.getNearestSnapPosition(targetX2, element.getObjectID());
if (Math.abs(snapPosition - targetX2) > snapThreshold) {
final long localWidth = Math.max(0, targetX2 - elementX);
// strict geometry: all values are multiplied by 1000
// percentages in the engine are represented by floats betwen 0 and 100.
final long percentage =
StrictGeomUtility.toInternalValue(localWidth * 100 / parentBase);
styleSheet.setStyleProperty(
ElementStyleKeys.MIN_WIDTH,
new Float(StrictGeomUtility.toExternalValue(-percentage)));
} else {
final long localWidth = Math.max(0, snapPosition - elementX);
// strict geometry: all values are multiplied by 1000
// percentages in the engine are represented by floats betwen 0 and 100.
final long percentage =
StrictGeomUtility.toInternalValue(localWidth * 100 / parentBase);
styleSheet.setStyleProperty(
ElementStyleKeys.MIN_WIDTH,
new Float(StrictGeomUtility.toExternalValue(-percentage)));
}
}
}
element.notifyNodePropertiesChanged();
}
}