Mercurial > projects > dwt-addons
view dwtx/jface/viewers/TreeViewerRow.d @ 104:04b47443bb01
Reworked the collection uses to make use of a wrapper collection that is compatible to the Java Collections.
These new wrappers now use the tango.util.containers instead of the tango.util.collections.
author | Frank Benoit <benoit@tionex.de> |
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date | Thu, 07 Aug 2008 15:01:33 +0200 |
parents | 7ffeace6c47f |
children |
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/******************************************************************************* * Copyright (c) 2006, 2008 IBM Corporation 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: * IBM Corporation - initial API and implementation * Tom Schindl <tom.schindl@bestsolution.at> - initial API and implementation * - fix in bug: 174355,171126,,195908,198035,215069,227421 * Port to the D programming language: * Frank Benoit <benoit@tionex.de> *******************************************************************************/ module dwtx.jface.viewers.TreeViewerRow; import dwtx.jface.viewers.ViewerRow; import dwtx.jface.viewers.TreePath; import dwt.graphics.Color; import dwt.graphics.Font; import dwt.graphics.Image; import dwt.graphics.Rectangle; import dwt.widgets.Control; import dwt.widgets.Tree; import dwt.widgets.TreeItem; import dwt.widgets.Widget; import dwtx.core.runtime.Assert; import dwt.dwthelper.utils; import dwtx.dwtxhelper.Collection; /** * TreeViewerRow is the Tree implementation of ViewerRow. * * @since 3.3 * */ public class TreeViewerRow : ViewerRow { private TreeItem item; /** * Create a new instance of the receiver. * * @param item */ this(TreeItem item) { this.item = item; } /* * (non-Javadoc) * * @see dwtx.jface.viewers.ViewerRow#getBounds(int) */ public override Rectangle getBounds(int columnIndex) { return item.getBounds(columnIndex); } /* * (non-Javadoc) * * @see dwtx.jface.viewers.ViewerRow#getBounds() */ public override Rectangle getBounds() { return item.getBounds(); } /* * (non-Javadoc) * * @see dwtx.jface.viewers.ViewerRow#getColumnCount() */ public override int getColumnCount() { return item.getParent().getColumnCount(); } /* * (non-Javadoc) * * @see dwtx.jface.viewers.ViewerRow#getItem() */ public override Widget getItem() { return item; } /* * (non-Javadoc) * * @see dwtx.jface.viewers.ViewerRow#getBackground(int) */ public override Color getBackground(int columnIndex) { return item.getBackground(columnIndex); } /* * (non-Javadoc) * * @see dwtx.jface.viewers.ViewerRow#getFont(int) */ public override Font getFont(int columnIndex) { return item.getFont(columnIndex); } /* * (non-Javadoc) * * @see dwtx.jface.viewers.ViewerRow#getForeground(int) */ public override Color getForeground(int columnIndex) { return item.getForeground(columnIndex); } /* * (non-Javadoc) * * @see dwtx.jface.viewers.ViewerRow#getImage(int) */ public override Image getImage(int columnIndex) { return item.getImage(columnIndex); } /* * (non-Javadoc) * * @see dwtx.jface.viewers.ViewerRow#getText(int) */ public override String getText(int columnIndex) { return item.getText(columnIndex); } /* * (non-Javadoc) * * @see dwtx.jface.viewers.ViewerRow#setBackground(int, * dwt.graphics.Color) */ public override void setBackground(int columnIndex, Color color) { item.setBackground(columnIndex, color); } /* * (non-Javadoc) * * @see dwtx.jface.viewers.ViewerRow#setFont(int, * dwt.graphics.Font) */ public override void setFont(int columnIndex, Font font) { item.setFont(columnIndex, font); } /* * (non-Javadoc) * * @see dwtx.jface.viewers.ViewerRow#setForeground(int, * dwt.graphics.Color) */ public override void setForeground(int columnIndex, Color color) { item.setForeground(columnIndex, color); } /* * (non-Javadoc) * * @see dwtx.jface.viewers.ViewerRow#setImage(int, * dwt.graphics.Image) */ public override void setImage(int columnIndex, Image image) { Image oldImage = item.getImage(columnIndex); if (image !is oldImage) { item.setImage(columnIndex, image); } } /* * (non-Javadoc) * * @see dwtx.jface.viewers.ViewerRow#setText(int, java.lang.String) */ public override void setText(int columnIndex, String text) { item.setText(columnIndex, text is null ? "" : text); //$NON-NLS-1$ } /* * (non-Javadoc) * * @see dwtx.jface.viewers.ViewerRow#getControl() */ public override Control getControl() { return item.getParent(); } public override ViewerRow getNeighbor(int direction, bool sameLevel) { if (direction is ViewerRow.ABOVE) { return getRowAbove(sameLevel); } else if (direction is ViewerRow.BELOW) { return getRowBelow(sameLevel); } else { throw new IllegalArgumentException( "Illegal value of direction argument."); //$NON-NLS-1$ } } private ViewerRow getRowBelow(bool sameLevel) { Tree tree = item.getParent(); // This means we have top-level item if (item.getParentItem() is null) { if (sameLevel || !item.getExpanded()) { int index = tree.indexOf(item) + 1; if (index < tree.getItemCount()) { return new TreeViewerRow(tree.getItem(index)); } } else if (item.getExpanded() && item.getItemCount() > 0) { return new TreeViewerRow(item.getItem(0)); } } else { if (sameLevel || !item.getExpanded()) { TreeItem parentItem = item.getParentItem(); int nextIndex = parentItem.indexOf(item) + 1; int totalIndex = parentItem.getItemCount(); TreeItem itemAfter; // This would mean that it was the last item if (nextIndex is totalIndex) { itemAfter = findNextItem(parentItem); } else { itemAfter = parentItem.getItem(nextIndex); } if (itemAfter !is null) { return new TreeViewerRow(itemAfter); } } else if (item.getExpanded() && item.getItemCount() > 0) { return new TreeViewerRow(item.getItem(0)); } } return null; } private ViewerRow getRowAbove(bool sameLevel) { Tree tree = item.getParent(); // This means we have top-level item if (item.getParentItem() is null) { int index = tree.indexOf(item) - 1; TreeItem nextTopItem = null; if (index >= 0) { nextTopItem = tree.getItem(index); } if (nextTopItem !is null) { if (sameLevel) { return new TreeViewerRow(nextTopItem); } return new TreeViewerRow(findLastVisibleItem(nextTopItem)); } } else { TreeItem parentItem = item.getParentItem(); int previousIndex = parentItem.indexOf(item) - 1; TreeItem itemBefore; if (previousIndex >= 0) { if (sameLevel) { itemBefore = parentItem.getItem(previousIndex); } else { itemBefore = findLastVisibleItem(parentItem .getItem(previousIndex)); } } else { itemBefore = parentItem; } if (itemBefore !is null) { return new TreeViewerRow(itemBefore); } } return null; } private TreeItem findLastVisibleItem(TreeItem parentItem) { TreeItem rv = parentItem; while (rv.getExpanded() && rv.getItemCount() > 0) { rv = rv.getItem(rv.getItemCount() - 1); } return rv; } private TreeItem findNextItem(TreeItem item) { TreeItem rv = null; Tree tree = item.getParent(); TreeItem parentItem = item.getParentItem(); int nextIndex; int totalItems; if (parentItem is null) { nextIndex = tree.indexOf(item) + 1; totalItems = tree.getItemCount(); } else { nextIndex = parentItem.indexOf(item) + 1; totalItems = parentItem.getItemCount(); } // This is once more the last item in the tree // Search on if (nextIndex is totalItems) { if (item.getParentItem() !is null) { rv = findNextItem(item.getParentItem()); } } else { if (parentItem is null) { rv = tree.getItem(nextIndex); } else { rv = parentItem.getItem(nextIndex); } } return rv; } public override TreePath getTreePath() { TreeItem tItem = item; LinkedList segments = new LinkedList(); while (tItem !is null) { Object segment = tItem.getData(); Assert.isNotNull(segment); segments.addFirst(segment); tItem = tItem.getParentItem(); } return new TreePath(segments.toArray()); } void setItem(TreeItem item) { this.item = item; } public override Object clone() { return new TreeViewerRow(item); } public override Object getElement() { return item.getData(); } public int getVisualIndex(int creationIndex) { int[] order = item.getParent().getColumnOrder(); for (int i = 0; i < order.length; i++) { if (order[i] is creationIndex) { return i; } } return super.getVisualIndex(creationIndex); } public int getCreationIndex(int visualIndex) { if( item !is null && ! item.isDisposed() && hasColumns() && isValidOrderIndex(visualIndex) ) { return item.getParent().getColumnOrder()[visualIndex]; } return super.getCreationIndex(visualIndex); } /* (non-Javadoc) * @see dwtx.jface.viewers.ViewerRow#getTextBounds(int) */ public Rectangle getTextBounds(int index) { return item.getTextBounds(index); } /* (non-Javadoc) * @see dwtx.jface.viewers.ViewerRow#getImageBounds(int) */ public Rectangle getImageBounds(int index) { return item.getImageBounds(index); } private bool hasColumns() { return this.item.getParent().getColumnCount() !is 0; } private bool isValidOrderIndex(int currentIndex) { return currentIndex < this.item.getParent().getColumnOrder().length; } int getWidth(int columnIndex) { return item.getParent().getColumn(columnIndex).getWidth(); } }