/*!
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* Copyright (c) 2002-2013 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.reporting.designer.core.editor.report.drag;
import java.awt.geom.Point2D;
import java.util.List;
import org.pentaho.reporting.designer.core.editor.report.snapping.SnapPositionsModel;
import org.pentaho.reporting.designer.core.model.CachedLayoutData;
import org.pentaho.reporting.designer.core.model.ModelUtility;
import org.pentaho.reporting.designer.core.settings.WorkspaceSettings;
import org.pentaho.reporting.engine.classic.core.Element;
import org.pentaho.reporting.engine.classic.core.RootLevelBand;
import org.pentaho.reporting.engine.classic.core.style.ElementStyleKeys;
import org.pentaho.reporting.engine.classic.core.style.ElementStyleSheet;
import org.pentaho.reporting.engine.classic.core.util.geom.StrictGeomUtility;
public class MoveDragOperation extends AbstractMouseDragOperation
{
private long snapThreshold;
public MoveDragOperation(final List<Element> selectedVisualElements,
final Point2D originPoint,
final SnapPositionsModel horizontalSnapModel,
final SnapPositionsModel verticalSnapModel)
{
super(selectedVisualElements, originPoint, horizontalSnapModel, verticalSnapModel);
snapThreshold = WorkspaceSettings.getInstance().getSnapThreshold();
}
public void update(final Point2D normalizedPoint, final double zoomFactor)
{
final SnapPositionsModel horizontalSnapModel = getHorizontalSnapModel();
final SnapPositionsModel verticalSnapModel = getVerticalSnapModel();
final Element[] selectedVisualElements = getSelectedVisualElements();
final long originPointX = getOriginPointX();
final long originPointY = getOriginPointY();
final long[] elementXCoords = getElementX();
final long[] elementYCoords = getElementY();
final long[] elementWidth = getElementWidth();
final long[] elementHeight = getElementHeight();
final long px = StrictGeomUtility.toInternalValue(normalizedPoint.getX());
final long py = StrictGeomUtility.toInternalValue(normalizedPoint.getY());
final long dx = px - originPointX;
final long dy = py - originPointY;
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 elementX = styleSheet.getDoubleStyleProperty(ElementStyleKeys.POS_X, 0);
final double elementY = styleSheet.getDoubleStyleProperty(ElementStyleKeys.POS_Y, 0);
final Element parent = element.getParentSection();
if (parent == null)
{
throw new IllegalStateException("Parent has been removed, but the drag operation was not finished: " + element);
}
final CachedLayoutData data = ModelUtility.getCachedLayoutData(parent);
final long layoutedParentX = data.getX() + data.getPaddingX();
final long layoutedParentY = data.getY() + data.getPaddingY();
// this is where I want the element on a global scale...
final long targetPositionX = elementXCoords[i] + dx;
final long targetPositionY = elementYCoords[i] + dy;
if (elementX >= 0)
{
// absolute position; resolving is easy here
final long snapPosition = horizontalSnapModel.getNearestSnapPosition
(targetPositionX, element.getObjectID());
if (Math.abs(snapPosition - targetPositionX) > snapThreshold)
{
final long targetPositionX2 = targetPositionX + elementWidth[i];
final long snapPosition2 = horizontalSnapModel.getNearestSnapPosition
(targetPositionX2, element.getObjectID());
if (Math.abs(snapPosition2 - targetPositionX2) < snapThreshold)
{
// snapping to the right border..
final long snapX = snapPosition2 - elementWidth[i];
final long localXPosition = Math.max(0, snapX - layoutedParentX);
final float position = (float) StrictGeomUtility.toExternalValue(localXPosition);
styleSheet.setStyleProperty(ElementStyleKeys.POS_X, new Float(position));
}
else
{
// not snapping ...
final long localXPosition = Math.max(0, targetPositionX - layoutedParentX);
final float position = (float) StrictGeomUtility.toExternalValue(localXPosition);
styleSheet.setStyleProperty(ElementStyleKeys.POS_X, new Float(position));
}
}
else
{
// snapping to the left border..
final long localXPosition = Math.max(0, snapPosition - layoutedParentX);
final float position = (float) StrictGeomUtility.toExternalValue(localXPosition);
styleSheet.setStyleProperty(ElementStyleKeys.POS_X, new Float(position));
}
}
else
{
final long parentBase = data.getWidth();
if (parentBase > 0)
{
// relative position; resolve the percentage against the width of the parent.
final long snapPosition = horizontalSnapModel.getNearestSnapPosition(targetPositionX,
element.getObjectID());
if (Math.abs(snapPosition - targetPositionX) > snapThreshold)
{
final long targetPositionX2 = targetPositionX + elementWidth[i];
final long snapPosition2 = horizontalSnapModel.getNearestSnapPosition(targetPositionX2,
element.getObjectID());
if (Math.abs(snapPosition2 - targetPositionX2) < snapThreshold)
{
// snapping to the right
final long snapX = snapPosition2 - elementWidth[i];
final long localXPosition = Math.max(0, snapX - layoutedParentX);
final long percentage = StrictGeomUtility.toInternalValue(localXPosition * 100 / parentBase);
styleSheet.setStyleProperty(ElementStyleKeys.POS_X,
new Float(StrictGeomUtility.toExternalValue(-percentage)));
}
else
{
// not snapping
final long localXPosition = Math.max(0, targetPositionX - layoutedParentX);
// 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(localXPosition * 100 / parentBase);
styleSheet.setStyleProperty(ElementStyleKeys.POS_X,
new Float(StrictGeomUtility.toExternalValue(-percentage)));
}
}
else
{
// snapping to the left
final long localXPosition = Math.max(0, snapPosition - layoutedParentX);
// 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(localXPosition * 100 / parentBase);
styleSheet.setStyleProperty(ElementStyleKeys.POS_X,
new Float(StrictGeomUtility.toExternalValue(-percentage)));
}
}
}
if (elementY >= 0)
{
// absolute position; resolving is easy here
final long snapPosition = verticalSnapModel.getNearestSnapPosition(targetPositionY, element.getObjectID());
if (Math.abs(snapPosition - targetPositionY) > snapThreshold)
{
final long targetPositionY2 = targetPositionY + elementHeight[i];
final long snapPosition2 = horizontalSnapModel.getNearestSnapPosition(targetPositionY2,
element.getObjectID());
if (Math.abs(snapPosition2 - targetPositionY2) < snapThreshold)
{
// snap to the bottom
final long snapY = snapPosition2 - elementHeight[i];
final long localYPosition = Math.max(0, snapY - layoutedParentY);
final float position = (float) StrictGeomUtility.toExternalValue(localYPosition);
styleSheet.setStyleProperty(ElementStyleKeys.POS_Y, new Float(position));
}
else
{
// not snapping
final long localYPosition = Math.max(0, targetPositionY - layoutedParentY);
final float position = (float) StrictGeomUtility.toExternalValue(localYPosition);
styleSheet.setStyleProperty(ElementStyleKeys.POS_Y, new Float(position));
}
}
else
{
// snap to the top
final long localYPosition = Math.max(0, snapPosition - layoutedParentY);
final float position = (float) StrictGeomUtility.toExternalValue(localYPosition);
styleSheet.setStyleProperty(ElementStyleKeys.POS_Y, new Float(position));
}
}
else
{
final long parentBase;
if (isCanvasElement(parent))
{
parentBase = data.getHeight();
}
else
{
parentBase = data.getWidth();
}
if (parentBase > 0)
{
// relative position; resolve the percentage against the height of the parent.
final long snapPosition = verticalSnapModel.getNearestSnapPosition(targetPositionY, element.getObjectID());
if (Math.abs(snapPosition - targetPositionY) > snapThreshold)
{
final long targetPositionY2 = targetPositionY + elementHeight[i];
final long snapPosition2 = horizontalSnapModel.getNearestSnapPosition(targetPositionY2,
element.getObjectID());
if (Math.abs(snapPosition2 - targetPositionY2) < snapThreshold)
{
// snap to the bottom
final long snapY = snapPosition2 - elementHeight[i];
final long localYPosition = Math.max(0, snapY - layoutedParentY);
final long percentage = StrictGeomUtility.toInternalValue(localYPosition * 100 / parentBase);
styleSheet.setStyleProperty(ElementStyleKeys.POS_Y,
new Float(StrictGeomUtility.toExternalValue(-percentage)));
}
else
{
// not snapping at all
final long localYPosition = Math.max(0, targetPositionY - layoutedParentY);
// 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(localYPosition * 100 / parentBase);
styleSheet.setStyleProperty(ElementStyleKeys.POS_Y,
new Float(StrictGeomUtility.toExternalValue(-percentage)));
}
}
else
{
// snap to the top
final long localYPosition = Math.max(0, snapPosition - layoutedParentY);
// 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(localYPosition * 100 / parentBase);
styleSheet.setStyleProperty(ElementStyleKeys.POS_Y,
new Float(StrictGeomUtility.toExternalValue(-percentage)));
}
}
}
element.notifyNodePropertiesChanged();
}
}
public void finish()
{
}
}