/* ******************************************************************************
* Copyright (c) 2006-2012 XMind Ltd. and others.
*
* This file is a part of XMind 3. XMind releases 3 and
* above are dual-licensed under the Eclipse Public License (EPL),
* which is available at http://www.eclipse.org/legal/epl-v10.html
* and the GNU Lesser General Public License (LGPL),
* which is available at http://www.gnu.org/licenses/lgpl.html
* See http://www.xmind.net/license.html for details.
*
* Contributors:
* XMind Ltd. - initial API and implementation
*******************************************************************************/
package org.xmind.ui.internal.branch;
import java.util.Iterator;
import java.util.List;
import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.PositionConstants;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.draw2d.geometry.Insets;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.draw2d.geometry.Rectangle;
import org.xmind.gef.GEF;
import org.xmind.gef.draw2d.IReferencedFigure;
import org.xmind.gef.draw2d.geometry.ITransformer;
import org.xmind.gef.draw2d.geometry.VerticalFlipper;
import org.xmind.gef.part.IPart;
import org.xmind.ui.branch.AbstractBranchStructure;
import org.xmind.ui.branch.BoundaryLayoutHelper;
import org.xmind.ui.branch.IInsertion;
import org.xmind.ui.branch.Insertion;
import org.xmind.ui.mindmap.IBranchPart;
import org.xmind.ui.mindmap.IBranchRangePart;
import org.xmind.ui.mindmap.IPlusMinusPart;
import org.xmind.ui.mindmap.ISummaryPart;
import org.xmind.ui.mindmap.ITopicPart;
import org.xmind.ui.mindmap.MindMapUI;
import org.xmind.ui.tools.ParentSearchKey;
public class UpDownStructure extends AbstractBranchStructure {
private boolean upwards;
private ITransformer t = new VerticalFlipper();
public UpDownStructure(boolean upwards) {
this.upwards = upwards;
this.t.setEnabled(upwards);
}
public boolean isUpwards() {
return upwards;
}
protected void doFillPlusMinus(IBranchPart branch,
IPlusMinusPart plusMinus, LayoutInfo info) {
Point ref = info.getReference();
t.setOrigin(ref);
int x = ref.x;
Rectangle topicBounds = info.getCheckedClientArea();
topicBounds = t.tr(topicBounds);
int y = topicBounds.bottom();
IFigure pmFigure = plusMinus.getFigure();
Dimension size = pmFigure.getPreferredSize();
Rectangle r = new Rectangle(x - size.width / 2, y, size.width,
size.height);
info.put(pmFigure, t.rr(r));
}
protected void doFillSubBranches(IBranchPart branch,
List<IBranchPart> subBranches, LayoutInfo info) {
int majorSpacing = getMajorSpacing(branch);
int minorSpacing = getMinorSpacing(branch);
Point ref = info.getReference();
t.setOrigin(ref);
Rectangle refBounds = info.getCheckedClientArea();
refBounds = t.tr(refBounds);
int y = refBounds.bottom() + majorSpacing;
int num = subBranches.size();
int totalWidth = calcTotalChildrenWidth(branch, minorSpacing, true);
int left = totalWidth / 2;
int x = ref.x - left;
IInsertion insertion = getCurrentInsertion(branch);
BoundaryLayoutHelper helper = getBoundaryLayoutHelper(branch);
for (int i = 0; i < num; i++) {
if (insertion != null && i == insertion.getIndex()) {
Rectangle r = insertion.createRectangle(x, y);
info.add(t.rr(r));
x += r.width + minorSpacing;
}
IBranchPart subBranchPart = subBranches.get(i);
IFigure subBranchFigure = subBranchPart.getFigure();
Insets ins = helper.getInsets(subBranchPart);
Dimension size = subBranchFigure.getPreferredSize();
Rectangle r = new Rectangle(x + ins.left, y + ins.top, size.width,
size.height);
info.put(subBranchFigure, t.rr(r));
x += size.width + ins.getWidth() + minorSpacing;
}
if (insertion != null && num == insertion.getIndex()) {
Dimension insSize = insertion.getSize();
if (insSize != null) {
Rectangle r = new Rectangle(x, y, insSize.width, insSize.height);
info.add(t.rr(r));
}
}
}
// public Object calcNavigation(IBranchPart branch, int direction) {
// switch (direction) {
// case PositionConstants.WEST:
// return NAVI_PREV;
// case PositionConstants.EAST:
// return NAVI_NEXT;
// case PositionConstants.NORTH:
// return isUpwards() ? NAVI_CHILD : NAVI_PARENT;
// case PositionConstants.SOUTH:
// return isUpwards() ? NAVI_PARENT : NAVI_CHILD;
// }
// return NAVI_SELF;
// }
public IPart calcChildNavigation(IBranchPart branch,
IBranchPart sourceChild, String navReqType, boolean sequential) {
if (GEF.REQ_NAV_LEFT.equals(navReqType)) {
return getSubTopicPart(branch, sourceChild.getBranchIndex() - 1);
} else if (GEF.REQ_NAV_RIGHT.equals(navReqType)) {
return getSubTopicPart(branch, sourceChild.getBranchIndex() + 1);
} else if (!sequential) {
if (isUpwards()) {
if (GEF.REQ_NAV_DOWN.equals(navReqType)) {
return branch.getTopicPart();
}
} else {
if (GEF.REQ_NAV_UP.equals(navReqType)) {
return branch.getTopicPart();
}
}
}
return super.calcChildNavigation(branch, sourceChild, navReqType,
sequential);
}
public IPart calcNavigation(IBranchPart branch, String navReqType) {
if (!branch.getSubBranches().isEmpty()) {
if (isUpwards()) {
if (GEF.REQ_NAV_UP.equals(navReqType)) {
return getSubTopicPart(branch, 0);
}
} else {
if (GEF.REQ_NAV_DOWN.equals(navReqType)) {
return getSubTopicPart(branch, 0);
}
}
}
return super.calcNavigation(branch, navReqType);
}
public int getSourceOrientation(IBranchPart branch) {
if (isUpwards())
return PositionConstants.NORTH;
return PositionConstants.SOUTH;
}
public int getChildTargetOrientation(IBranchPart branch,
IBranchPart subBranch) {
return calcChildTargetOrientation();
}
// public int calcChildTargetOrientation(IBranchPart branch,
// IReferencedFigure childFigure) {
// return calcChildTargetOrientation();
// }
private int calcChildTargetOrientation() {
if (isUpwards())
return PositionConstants.SOUTH;
return PositionConstants.NORTH;
}
public int calcChildDistance(IBranchPart branch, ParentSearchKey key) {
IFigure branchFigure = branch.getFigure();
IReferencedFigure topicFigure = (IReferencedFigure) branch
.getTopicPart().getFigure();
Point ref = topicFigure.getReference();
t.setOrigin(ref);
Point childRef = t.tp(getChildRef(branch, ref, key));
Rectangle branchBounds = t.tr(branchFigure.getBounds());
Rectangle topicBounds = t.tr(topicFigure.getBounds());
int dy = childRef.y - topicBounds.bottom();
if (dy > 0) {
if (childRef.x >= branchBounds.x
&& childRef.x < branchBounds.right()
&& dy < MindMapUI.SEARCH_RANGE) {
return dy;
}
int dx = childRef.x - ref.x;
int d = dx * dx + dy * dy;
return d;
}
return super.calcChildDistance(branch, key);
}
private Point getChildRef(IBranchPart branch, Point branchRef,
ParentSearchKey key) {
return key.getCursorPos();
}
public int calcChildIndex(IBranchPart branch, ParentSearchKey key) {
return calcInsIndex(branch, key, false);
}
private int calcInsIndex(IBranchPart branch, ParentSearchKey key,
boolean withDisabled) {
if (branch.getSubBranches().isEmpty() || branch.isFolded())
return withDisabled ? 0 : -1;
ITopicPart topic = branch.getTopicPart();
if (topic == null)
return withDisabled ? 0 : -1;
IFigure topicFigure = topic.getFigure();
Point ref = ((IReferencedFigure) topicFigure).getReference();
t.setOrigin(ref);
Point childRef = t.tp(getChildRef(branch, ref, key));
Dimension insSize = calcInsSize(branch, key);
int insWidth = insSize.width;
int minorSpacing = getMinorSpacing(branch);
int totalChildrenWidth = calcTotalChildrenWidth(branch, minorSpacing,
false);
int totalWidth = totalChildrenWidth + insWidth + minorSpacing;
int x = ref.x - totalWidth / 2;
return calcInsIndex(branch, x, childRef, minorSpacing, insWidth,
withDisabled);
}
private int calcInsIndex(IBranchPart branch, int x, Point childRef,
int spacing, int childWidth, boolean withDisabled) {
int ret = 0;
int sum = 0;
List<IBranchPart> subBranches = branch.getSubBranches();
int num = subBranches.size();
for (IBranchPart subBranch : subBranches) {
IFigure subFigure = subBranch.getFigure();
int w = subFigure.getPreferredSize().width;
int hint = x + sum + (childWidth + w + spacing) / 2;
if (childRef.x < hint) {
return ret;
}
sum += w + spacing;
if (withDisabled || subFigure.isEnabled())
ret++;
}
return withDisabled ? num : -1;
}
private Dimension calcInsSize(IBranchPart branch, ParentSearchKey key) {
return key.getFigure().getSize().scale(0.8);
}
private int calcTotalChildrenWidth(IBranchPart branch, int minorSpacing,
boolean withInsertion) {
int totalWidth = 0;
Iterator<IBranchPart> it = branch.getSubBranches().iterator();
while (it.hasNext()) {
IBranchPart subBranch = it.next();
totalWidth += subBranch.getFigure().getPreferredSize().width;
if (it.hasNext()) {
totalWidth += minorSpacing;
}
}
if (withInsertion) {
IInsertion ins = getCurrentInsertion(branch);
if (ins != null) {
Dimension insSize = ins.getSize();
if (insSize != null) {
totalWidth += minorSpacing + insSize.width;
}
}
}
return totalWidth;
}
public IInsertion calcInsertion(IBranchPart branch, ParentSearchKey key) {
return new Insertion(branch, calcInsIndex(branch, key, true),
calcInsSize(branch, key));
}
public int getSummaryDirection(IBranchPart branch, ISummaryPart summary) {
return upwards ? PositionConstants.NORTH : PositionConstants.SOUTH;
}
public int getRangeGrowthDirection(IBranchPart branch,
IBranchRangePart range) {
return PositionConstants.EAST;
}
public int getQuickMoveOffset(IBranchPart branch, IBranchPart child,
int direction) {
if (direction == PositionConstants.EAST)
return 1;
if (direction == PositionConstants.WEST)
return -1;
return super.getQuickMoveOffset(branch, child, direction);
}
}