Revision 245 trunk/org.gvsig.app.document.layout2.app/org.gvsig.app.document.layout2.app.mainplugin/src/main/java/org/gvsig/app/project/documents/layout/fframes/FFrameView.java
| FFrameView.java | ||
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import org.gvsig.gui.beans.Messages; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dynobject.DynStruct; |
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import org.gvsig.tools.locator.LocatorException; |
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import org.gvsig.tools.persistence.PersistenceManager; |
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import org.gvsig.tools.persistence.PersistentState; |
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import org.gvsig.tools.persistence.exception.PersistenceException; |
| ... | ... | |
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protected OwnMapContextListener ownMapContextListener; |
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private boolean b_hasToc = true; |
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protected static final GeometryManager geomManager = GeometryLocator.getGeometryManager(); |
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protected Envelope oldViewEnvelope = null; |
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/** |
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* When we load a FFrameview from project, it will receive a wrong |
| ... | ... | |
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* @param r Envelope to be set |
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*/ |
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public void setNewEnvelope(Envelope r) {
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if (getView()!=null) {
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oldViewEnvelope = getView().getMapContext().getViewPort().getAdjustedEnvelope(); |
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} |
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getMapContext().getViewPort().setEnvelope(r); |
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updateScaleCtrl(); |
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} |
| ... | ... | |
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syncExtents = synced; |
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resetListeners(); |
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} |
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/** |
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* Returns true if the newEnvelope represents a pan operation on oldEnvelope, |
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* (both extents have the same height and width) |
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*/ |
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public static boolean isPan(Envelope oldEnvelope, Envelope newEnvelope) {
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if (oldEnvelope!=null && newEnvelope!=null) {
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double toleranceX = 0.00000001*Math.min(oldEnvelope.getLength(0), newEnvelope.getLength(0)); |
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double toleranceY = 0.00000001*Math.min(oldEnvelope.getLength(1), newEnvelope.getLength(1)); |
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// we consider it to be a pan if both lengths are equal |
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// (we use tolerance to avoid direct comparison of double values) |
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if ( ((oldEnvelope.getLength(0)-newEnvelope.getLength(0))<toleranceX) |
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&& ((oldEnvelope.getLength(1)-newEnvelope.getLength(1))<toleranceY) ) {
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* Calculates the new extent for the FFrame. It is necessary to avoid |
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* scale changes when a pan is triggered from the view, as the different |
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* size factors from View/FFrameView introduces scale changes even for |
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* pans |
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* |
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* @param newEnvelope |
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* @return |
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*/ |
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protected Envelope calculateNewExtent(Envelope newEnvelope) {
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if (isPan(oldViewEnvelope, newEnvelope)) {
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Envelope envelope = getMapContext().getViewPort().getAdjustedEnvelope(); |
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double shiftX = newEnvelope.getMinimum(0) - oldViewEnvelope.getMinimum(0); |
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double shiftY = newEnvelope.getMinimum(1) - oldViewEnvelope.getMinimum(1); |
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double minX = envelope.getMinimum(0) + shiftX; |
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double minY = envelope.getMinimum(1) + shiftY; |
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double maxX = envelope.getMaximum(0) + shiftX; |
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double maxY = envelope.getMaximum(1) + shiftY; |
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try {
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return GeometryLocator.getGeometryManager().createEnvelope(minX, minY, maxX, maxY, SUBTYPES.GEOM2D); |
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} |
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catch (LocatorException e) {}
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catch (CreateEnvelopeException e) {}
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} |
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return newEnvelope; |
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} |
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private class ViewDocListener |
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implements ViewPortListener, LegendListener, LayerCollectionListener, AtomicEventListener {
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|
| ... | ... | |
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} |
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if (getMapContext()!=null) {
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b_updating = true; |
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getMapContext().getViewPort().setEnvelope(e.getNewExtent()); |
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getMapContext().getViewPort().setEnvelope(calculateNewExtent(e.getNewExtent())); |
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oldViewEnvelope = getView().getMapContext().getViewPort().getAdjustedEnvelope(); |
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updateScaleCtrl(); |
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invalidateLayout(); |
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b_updating = false; |
| ... | ... | |
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b_updating = true; |
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if (getExtentSynced()){
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getView().getMapContext().getViewPort().setEnvelope(e.getNewExtent()); |
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oldViewEnvelope = getView().getMapContext().getViewPort().getAdjustedEnvelope(); |
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} |
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updateScaleCtrl(); |
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invalidateLayout(); |
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