diff options
Diffstat (limited to 'jsf/plugins/org.eclipse.jst.pagedesigner/src/org/eclipse/jst/pagedesigner/viewer/EditPartPositionHelper.java')
| -rw-r--r-- | jsf/plugins/org.eclipse.jst.pagedesigner/src/org/eclipse/jst/pagedesigner/viewer/EditPartPositionHelper.java | 682 |
1 files changed, 0 insertions, 682 deletions
diff --git a/jsf/plugins/org.eclipse.jst.pagedesigner/src/org/eclipse/jst/pagedesigner/viewer/EditPartPositionHelper.java b/jsf/plugins/org.eclipse.jst.pagedesigner/src/org/eclipse/jst/pagedesigner/viewer/EditPartPositionHelper.java deleted file mode 100644 index f2c266083..000000000 --- a/jsf/plugins/org.eclipse.jst.pagedesigner/src/org/eclipse/jst/pagedesigner/viewer/EditPartPositionHelper.java +++ /dev/null @@ -1,682 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2006 Sybase, Inc. and others. - * - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * Sybase, Inc. - initial API and implementation - *******************************************************************************/ -package org.eclipse.jst.pagedesigner.viewer; - -import java.util.ArrayList; -import java.util.List; - -import org.eclipse.draw2d.IFigure; -import org.eclipse.draw2d.geometry.Point; -import org.eclipse.draw2d.geometry.Rectangle; -import org.eclipse.gef.EditPart; -import org.eclipse.gef.GraphicalEditPart; -import org.eclipse.jst.pagedesigner.IHTMLConstants; -import org.eclipse.jst.pagedesigner.css2.layout.CSSFigure; -import org.eclipse.jst.pagedesigner.css2.layout.CSSTextFigure; -import org.eclipse.jst.pagedesigner.css2.layout.FlowBox; -import org.eclipse.jst.pagedesigner.dom.DOMPosition; -import org.eclipse.jst.pagedesigner.dom.DOMPositionHelper; -import org.eclipse.jst.pagedesigner.dom.DOMRefPosition; -import org.eclipse.jst.pagedesigner.dom.EditModelQuery; -import org.eclipse.jst.pagedesigner.dom.IDOMPosition; -import org.eclipse.jst.pagedesigner.parts.NodeEditPart; -import org.eclipse.jst.pagedesigner.parts.TextEditPart; -import org.eclipse.jst.pagedesigner.utils.BodyHelper; -import org.eclipse.jst.pagedesigner.validation.caret.IMovementMediator; -import org.eclipse.jst.pagedesigner.validation.caret.IPositionMediator; -import org.eclipse.jst.pagedesigner.validation.caret.Target; -import org.w3c.dom.Node; - -/** - * @author mengbo - */ -public class EditPartPositionHelper { -// private final static Logger _log = PDPlugin -// .getLogger(EditPartPositionHelper.class); - - /** - * Add something to curent - * - * @param lineBox - * @param host - * @param point - * @param validator - */ - private static void addToCurrentLine(FlowBoxLine lineBox, EditPart host, - Point point, IPositionMediator validator) { - Node node = Target.resolveNode(host); - if (!(node == null || EditModelQuery.isDocument(node))) { - // Either it is referencable or is editable. - if (validator.isValidPosition(new DOMRefPosition(node, true)) - || // - validator - .isValidPosition((new DOMRefPosition(node, false))) - || // - validator.isValidPosition(new DOMPosition(node, 0))) { - lineBox.addLayoutPart(host, point); - } - } - } - - /** - * @param endPosition - * @return null means failed to convert to rect. - */ - public static Rectangle convertToAbsoluteCaretRect(DesignPosition position) { - Rectangle ret = null; - try { - final int CARET_OFFSET = 1; - if (position == null || !position.isValid()) { - return null; - } - EditPart containerEditPart = position.getContainerPart(); - if (containerEditPart instanceof TextEditPart) { - CSSTextFigure figure = (CSSTextFigure) ((TextEditPart) containerEditPart) - .getFigure(); - ret = figure.calculateCaretPosition(position.getOffset()); - figure.translateToAbsolute(ret); - ret.width = CaretUpdater.CARET_WIDTH; - } else { - int offset = position.getOffset(); - // there is no child - if (containerEditPart.getChildren().isEmpty() - || LayoutPart.getConcretePart(containerEditPart) == null) { - IFigure figure = ((GraphicalEditPart) containerEditPart) - .getFigure(); - Rectangle bounds = figure.getBounds(); - if (figure instanceof CSSFigure) { - List fragments = ((CSSFigure) figure) - .getFragmentsForRead(); - if (fragments.size() > 0) { - FlowBox box = (FlowBox) fragments.get(fragments - .size() - 1); - bounds = LayoutPart.getBounds(box); - } - } - - ret = new Rectangle(bounds.x + CARET_OFFSET, bounds.y, - CaretUpdater.CARET_WIDTH, bounds.height); - - figure.translateToAbsolute(ret); - } else if (offset >= 0 - && offset <= containerEditPart.getChildren().size()) { - ret = getRefRect(position); - } - } - } catch (Exception e) { - // This should never happen, we catch here for later analysis. - // _log.debug("Error in caret rect resolving", e); - ret = new Rectangle(0, 0, 0, 0); - } - if (ret == null) { - ret = new Rectangle(0, 0, 0, 0); - } - return ret; - } - - /** - * This method will create FlowBoxLine to calculate the accurate parts. - * - * @param host - * @param p - * @return - */ - public static DesignPosition findEditPartPosition(EditPart host, Point p, - IPositionMediator validator) { - try { - host = validator.getEditableContainer(new Target(host)); - FlowBoxLine boxLine = new FlowBoxLine( - new Rectangle(p.x, p.y, 0, 0), validator, p); - DesignPosition position = innerFindEditPartPosition(host, host, p, - boxLine, validator); - if (position == null) { - position = innerFindEditPartPosition(host, host, p, boxLine, - validator); - if (position == null) { - EditPart part = boxLine.getClosestPart(); - if (part != null) { - LayoutPart layoutPart = new LayoutPart(part, p); - position = layoutPart.resolvePosition(validator); - } - } - } - return position; - } catch (Exception e) { - return null; - } - - } - - /** - * This function find the position, if there is one which is widget or text - * and it contains p, or there is not such widget, then boxLine will returns - * the widget that are in a sameline which contains p; - * - * @param p - * @param result - * @param tagName - * @param skip - * @return - */ - //TODO: needs refactoring - public static DesignPosition innerFindEditPartPosition(EditPart rootHost, - EditPart host, Point p, FlowBoxLine boxLine, - IPositionMediator validator) { - Target target = new Target(host); - LayoutPart lPart = new LayoutPart(host, p); - // text - if (host instanceof TextEditPart) { - if (lPart.contains(p)) { - DesignPosition position = null; - // see if the point is within string. - position = findTextEditPartPosition((TextEditPart) host, p); - if (position == null) { - addToCurrentLine(boxLine, host, p, validator); - } - // found?!! - return position; - } - addToCurrentLine(boxLine, host, p, validator); - return null; - } - // widget - else if (isWidget(host)) { - if (lPart.contains(p) - && (validator.isValidPosition(new DOMRefPosition(target - .getNode(), true)) || // - validator.isValidPosition((new DOMRefPosition(target - .getNode(), false))))) { - if (IHTMLConstants.TAG_BR.equalsIgnoreCase(Target.resolveNode( - host).getNodeName())) { - return new DesignRefPosition(host, lPart.isBeforePoint(p)); - } - return new DesignRefPosition(host, lPart.isBeforePoint(p) - || !lPart.atLeftPart(p)); - } - addToCurrentLine(boxLine, host, p, validator); - } else { - // root host. we always supporse it has editable area. - if (host == rootHost) { - if (host.getChildren().size() > 0) { - List children = host.getChildren(); - for (int i = 0, size = children.size(); i < size; i++) { - GraphicalEditPart child = (GraphicalEditPart) children - .get(i); - DesignPosition position = innerFindEditPartPosition( - rootHost, child, p, boxLine, validator); - if (position != null) { - return position; - } - } - } - if (boxLine.getPartsList().size() == 0) { - if (lPart.contains(p)) { - // found!!! - return new DesignPosition(host, 0); - } - addToCurrentLine(boxLine, host, p, validator); - } - } - // container - else { - // cann't edit it. - if (!validator.hasEditableArea(target)) { - if (lPart.contains(p) && // - (validator.isValidPosition(new DesignRefPosition( - target.getPart(), true)) || // - validator.isValidPosition(new DesignRefPosition( - target.getPart(), true)))) { - return new DesignRefPosition(host, lPart - .isBeforePoint(p) - || !lPart.atLeftPart(p)); - } - addToCurrentLine(boxLine, host, p, validator); - } - // can edit - else { - // contains p - if (lPart.contains(p) || // - (!validator.isValidPosition(new DesignRefPosition( - target.getPart(), true)) && // - !validator.isValidPosition(new DesignRefPosition( - target.getPart(), true)))) { - if (host.getChildren().size() > 0) { - List children = host.getChildren(); - for (int i = 0, size = children.size(); i < size; i++) { - GraphicalEditPart child = (GraphicalEditPart) children - .get(i); - DesignPosition position = innerFindEditPartPosition( - rootHost, child, p, boxLine, validator); - if (position != null) { - return position; - } - } - } else { - // we put the container which is empty here. - if (lPart.contains(p)) { - // found!!! - return new DesignPosition(host, 0); - } - addToCurrentLine(boxLine, host, p, validator); - } - } - // not contains p - else { - addToCurrentLine(boxLine, host, p, validator); - } - } - } - } - return null; - } - - /** - * similiar to findEditPartPositionConstrained, this method is used to - * vertically move caret. - * - * @param host - * @param p - * @return - */ - public static DesignPosition findEditPartPositionConstrained(EditPart host, - Point p, IMovementMediator validator) { - try { - FlowBoxLine boxLine = new FlowBoxLine( - new Rectangle(p.x, p.y, 0, 0), validator, p); - DesignPosition position = innerFindEditPartPositionConstrained( - host, host, p, boxLine, validator); - if (position == null) { - position = innerFindEditPartPositionConstrained(host, host, p, - boxLine, validator); - if (position == null) { - EditPart part = boxLine.getClosestPart(); - if (part != null) { - LayoutPart layoutPart = new LayoutPart(part, p); - position = layoutPart.resolvePosition(validator); - } - } - } - return position; - } catch (Exception e) { - return null; - } - } - - /** - * This method is used for move up/down, except for using tactics to deal - * with container, this method is similiar to findEditPartPosition. - * - * @param p - * @param result - * @param tagName - * @param skip - * @return - */ - // TODO: needs refactoring - public static DesignPosition innerFindEditPartPositionConstrained( - EditPart rootHost, EditPart host, Point p, FlowBoxLine boxLine, - IMovementMediator validator) { - Target target = new Target(host); - LayoutPart lPart = new LayoutPart(host, p); - // text - if (host instanceof TextEditPart) { - if (lPart.contains(p)) { - DesignPosition position = null; - // see if the point is within string. - position = findTextEditPartPosition((TextEditPart) host, p); - if (position == null) { - addToCurrentLine(boxLine, host, p, validator); - } - // found?!! - return position; - } - addToCurrentLine(boxLine, host, p, validator); - return null; - } - // widget - else if (isWidget(host)) { - if (lPart.contains(p)) { - // found!!! - if (IHTMLConstants.TAG_BR.equalsIgnoreCase(Target.resolveNode( - host).getNodeName())) { - return new DesignRefPosition(host, lPart.isBeforePoint(p)); - } - return new DesignRefPosition(host, lPart.isBeforePoint(p) - || !lPart.atLeftPart(p)); - } - addToCurrentLine(boxLine, host, p, validator); - } else { - // root host. we always supporse it has editable area. - if (host == rootHost) { - if (host.getChildren().size() > 0) { - List children = host.getChildren(); - for (int i = 0, size = children.size(); i < size; i++) { - GraphicalEditPart child = (GraphicalEditPart) children - .get(i); - DesignPosition position = innerFindEditPartPositionConstrained( - rootHost, child, p, boxLine, validator); - if (position != null) { - return position; - } - } - } else { - if (lPart.contains(p)) { - // found!!! - return new DesignPosition(host, 0); - } - addToCurrentLine(boxLine, host, p, validator); - } - } - // container - else { - // cann't edit it. - if (!validator.hasEditableArea(target) - || !validator.allowsMoveIn(target)) { - if (validator.canReference(target, true) - || validator.canReference(target, false)) { - if (lPart.contains(p)) { - return new DesignRefPosition(host, lPart - .isBeforePoint(p) - || !lPart.atLeftPart(p)); - } - addToCurrentLine(boxLine, host, p, validator); - } - } - // can edit - else { - // contains p - if (lPart.contains(p)) { - if (host.getChildren().size() > 0) { - List children = host.getChildren(); - for (int i = 0, size = children.size(); i < size; i++) { - GraphicalEditPart child = (GraphicalEditPart) children - .get(i); - DesignPosition position = innerFindEditPartPositionConstrained( - rootHost, child, p, boxLine, validator); - if (position != null) { - return position; - } - } - } else { - // we put the container which is empty here. - if (lPart.contains(p)) { - // found!!! - return new DesignPosition(host, 0); - } - addToCurrentLine(boxLine, host, p, validator); - } - } - // not contains p - else { - addToCurrentLine(boxLine, host, p, validator); - } - } - } - } - return null; - - } - - // /** - // * @param host - // * @param p - // * @return - // */ - // private static DesignPosition - // findTextEditPartPositionAdjacent(TextEditPart host, Point p) - // { - // if (host.getFigure() instanceof CSSTextFigure) - // { - // CSSTextFigure figure = (CSSTextFigure) host.getFigure(); - // // make a copy to not destroy the original o - // p = p.getCopy(); - // figure.translateToRelative(p); - // int offset = figure.getNewInsertionOffset(p); - // if (offset >= 0) - // { - // return new DesignPosition(host, offset); - // } - // else - // { - // return null; - // } - // } - // else - // { - // // should not happen. - // return new DesignPosition(host, 0); - // } - // } - - /** - * @param host - * @param p - * @return - */ - private static DesignPosition findTextEditPartPosition(TextEditPart host, - Point p) { - if (host.getFigure() instanceof CSSTextFigure) { - CSSTextFigure figure = (CSSTextFigure) host.getFigure(); - // make a copy to not destroy the original o - p = p.getCopy(); - figure.translateToRelative(p); - int offset = figure.getInsertionOffset(p); - if (offset >= 0) { - return new DesignPosition(host, offset); - } - return null; - } - // should not happen. - return new DesignPosition(host, 0); - } - - /** - * @param figure - * @param box - * @return - */ -// public static Rectangle getBoxBounds(IFigure figure, FlowBox box) { -// Rectangle r = new Rectangle(box._x, box._y, box.getWidth(), box -// .getHeight()); -// figure.translateToAbsolute(r); -// return r; -// } - - /** - * @param child - * @return - */ - public static Rectangle getAbsoluteBounds(EditPart child) { - if (child instanceof GraphicalEditPart) { - Rectangle bounds = ((GraphicalEditPart) child).getFigure() - .getBounds().getCopy(); - ((GraphicalEditPart) child).getFigure().translateToAbsolute(bounds); - return bounds; - } - return new Rectangle(0, 0, 0, 0); - } - - /** - * @param host - * @param tagName - * @return - */ - private static boolean isWidget(EditPart host) { - if (host instanceof NodeEditPart) { - return ((NodeEditPart) host).isWidget(); - } - return false; - } - - /** - * Is Caret at right? - * - * @param position - * @param caretRefResult - * @return - */ - private static EditPart tryTwoWays(DesignPosition position, - List caretRefResult) { - EditPart result = null; - // Sibling first: - Node node = EditModelQuery.getInstance().getSibling( - DOMPositionHelper.toDOMPosition(position), true); - if (node != null && !EditModelQuery.isTransparentText(node)) { - result = Target.resolvePart(node); - caretRefResult.add(new Boolean(false)); - } else { - node = EditModelQuery.getInstance().getSibling( - DOMPositionHelper.toDOMPosition(position), false); - if (node != null && !EditModelQuery.isTransparentText(node)) { - result = Target.resolvePart(node); - caretRefResult.add(new Boolean(true)); - } - } - if (result == null) { - if (getConcretePart(position, false) != null) { - result = getConcretePart(position, false); - caretRefResult.add(new Boolean(true)); - } else if (getConcretePart(position, true) != null) { - result = getConcretePart(position, true); - caretRefResult.add(new Boolean(false)); - } - } - return result; - } - - /* - * Here we are doing something to avoid reference witespace tag. Since we - * still need to improve whitespace tags's layout furthure more. - */ - private static EditPart getNextConcretPart(DesignPosition position, - List caretIsAtRightTest) { - EditPart result = null; - boolean caretIsAtRight = true; - if (position instanceof DesignRefPosition) { - caretIsAtRight = ((DesignRefPosition) position).caretIsAtRight(); - result = ((DesignRefPosition) position).getRefPart(); - caretIsAtRightTest.add(new Boolean(caretIsAtRight)); - } - if (result == null - || EditModelQuery.isTransparentText(Target.resolveNode(result))) { - caretIsAtRightTest.clear(); - result = tryTwoWays(position, caretIsAtRightTest); - } - return result; - } - - /** - * Avoid whitespaces - * - * @param position - * @param forward - * @return - */ - public static EditPart getConcretePart(DesignPosition position, - boolean forward) { - EditPart result = null; - Node node = EditModelQuery.getInstance().getSibling( - DOMPositionHelper.toDOMPosition(position), forward); - while (node != null && EditModelQuery.isTransparentText(node)) { - node = EditModelQuery.getInstance().getSibling(node, forward); - } - if (node != null) { - result = Target.resolvePart(node); - } - return result; - } - - public static EditPart getNextConcretPart(DesignPosition position, - boolean forward) { - Node node; - EditPart result = null; - node = EditModelQuery.getInstance().getSibling( - DOMPositionHelper.toDOMPosition(position), forward); - if (node != null) { - if (forward) { - while (node != null) { - if (!EditModelQuery.isTransparentText(node) - && (result = Target.resolvePart(node)) != null) { - result = Target.resolvePart(node); - break; - } - node = node.getNextSibling(); - } - } else { - while (node != null) { - if (!EditModelQuery.isTransparentText(node) - && (result = Target.resolvePart(node)) != null) { - result = Target.resolvePart(node); - break; - } - node = node.getPreviousSibling(); - } - } - } - return result; - } - - private static Rectangle getRefRect(DesignPosition position) { - List caretLocation = new ArrayList(); - EditPart part = getNextConcretPart(position, caretLocation); - LayoutPart layoutPart; - Rectangle rect = null; - if (part != null) { - layoutPart = new LayoutPart(part, null); - boolean caretIsAtRight = ((Boolean) caretLocation.get(0)) - .booleanValue(); - final int CARET_OFFSET = 1; - Rectangle bounds = null; - IFigure figure = ((GraphicalEditPart) part).getFigure(); - if (!caretIsAtRight) { - FlowBox box; - if ((box = layoutPart.getLine(0)) != null) { - bounds = LayoutPart.getBounds(box); - } - } else { - FlowBox box; - if ((box = layoutPart.getLastLine()) != null) { - bounds = LayoutPart.getBounds(box); - } - } - if (bounds == null) { - bounds = figure.getBounds(); - } - if (!caretIsAtRight) { - rect = new Rectangle(bounds.x - CARET_OFFSET, bounds.y, - CaretUpdater.CARET_WIDTH, bounds.height);// new - } else { - rect = new Rectangle(bounds.getRight().x + CARET_OFFSET, - bounds.y, CaretUpdater.CARET_WIDTH, bounds.height);// new - } - figure.translateToAbsolute(rect); - } else { - System.out.println("No concrete part?"); - } - return rect; - } - - public static DesignPosition moveDesignPositionForInsert( - DesignPosition position, String uri, String tag) { - IDOMPosition domposition; - domposition = DOMPositionHelper.toDOMPosition(position); - if (domposition != null) { - domposition = BodyHelper - .adjustInsertPosition(uri, tag, domposition); - } - // TODO: huh? - if (domposition != null) { - return DOMPositionHelper.toDesignPosition(domposition); - } - return null; - } -} |