diff options
Diffstat (limited to 'bundles/org.eclipse.wst.xml.ui/src-multipage/org/eclipse/wst/xml/ui/internal/tabletree/TreeExtension.java')
| -rw-r--r-- | bundles/org.eclipse.wst.xml.ui/src-multipage/org/eclipse/wst/xml/ui/internal/tabletree/TreeExtension.java | 553 |
1 files changed, 0 insertions, 553 deletions
diff --git a/bundles/org.eclipse.wst.xml.ui/src-multipage/org/eclipse/wst/xml/ui/internal/tabletree/TreeExtension.java b/bundles/org.eclipse.wst.xml.ui/src-multipage/org/eclipse/wst/xml/ui/internal/tabletree/TreeExtension.java deleted file mode 100644 index ea03d96057..0000000000 --- a/bundles/org.eclipse.wst.xml.ui/src-multipage/org/eclipse/wst/xml/ui/internal/tabletree/TreeExtension.java +++ /dev/null @@ -1,553 +0,0 @@ -/***************************************************************************** - * Copyright (c) 2004 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 - ****************************************************************************/ - - -package org.eclipse.wst.xml.ui.internal.tabletree; - -import java.util.Iterator; -import java.util.List; -import java.util.Vector; - -import org.eclipse.jface.viewers.CellEditor; -import org.eclipse.jface.viewers.ICellEditorListener; -import org.eclipse.jface.viewers.ICellModifier; -import org.eclipse.swt.SWT; -import org.eclipse.swt.events.FocusEvent; -import org.eclipse.swt.events.FocusListener; -import org.eclipse.swt.events.KeyAdapter; -import org.eclipse.swt.events.KeyEvent; -import org.eclipse.swt.events.KeyListener; -import org.eclipse.swt.events.MouseAdapter; -import org.eclipse.swt.events.MouseEvent; -import org.eclipse.swt.events.MouseMoveListener; -import org.eclipse.swt.events.PaintEvent; -import org.eclipse.swt.events.PaintListener; -import org.eclipse.swt.events.SelectionEvent; -import org.eclipse.swt.events.SelectionListener; -import org.eclipse.swt.graphics.Color; -import org.eclipse.swt.graphics.Cursor; -import org.eclipse.swt.graphics.GC; -import org.eclipse.swt.graphics.Point; -import org.eclipse.swt.graphics.Rectangle; -import org.eclipse.swt.widgets.Composite; -import org.eclipse.swt.widgets.Control; -import org.eclipse.swt.widgets.Display; -import org.eclipse.swt.widgets.ScrollBar; -import org.eclipse.swt.widgets.Text; -import org.eclipse.swt.widgets.Tree; -import org.eclipse.swt.widgets.TreeItem; -import org.eclipse.ui.PlatformUI; - - -public class TreeExtension implements PaintListener { - - protected Tree fTree; - protected EditManager editManager; - protected String[] fColumnProperties; - protected ICellModifier cellModifier; - protected int columnPosition = 300; - protected int columnHitWidth = 5; - protected Color tableLineColor; - protected int controlWidth; - protected DelayedDrawTimer delayedDrawTimer; - private boolean fisUnsupportedInput = false; - - public TreeExtension(Tree tree) { - this.fTree = tree; - InternalMouseListener listener = new InternalMouseListener(); - tree.addMouseMoveListener(listener); - tree.addMouseListener(listener); - tree.addPaintListener(this); - editManager = new EditManager(tree); - delayedDrawTimer = new DelayedDrawTimer(tree); - - tableLineColor = tree.getDisplay().getSystemColor(SWT.COLOR_WIDGET_LIGHT_SHADOW); - } - - public void dispose() { - tableLineColor.dispose(); - } - - public void setCellModifier(ICellModifier modifier) { - cellModifier = modifier; - } - - public void resetCachedData() { - // todo: sure seems we should reset something? - } - - public ICellModifier getCellModifier() { - return cellModifier; - } - - public List getItemList() { - List list = new Vector(); - getItemListHelper(fTree.getItems(), list); - return list; - } - - protected void getItemListHelper(TreeItem[] items, List list) { - for (int i = 0; i < items.length; i++) { - TreeItem item = items[i]; - list.add(item); - getItemListHelper(item.getItems(), list); - } - } - - protected TreeItem getTreeItemOnRow(int px, int py) { - TreeItem result = null; - List list = getItemList(); - for (Iterator i = list.iterator(); i.hasNext();) { - TreeItem item = (TreeItem) i.next(); - Rectangle r = item.getBounds(); - if (r != null && px >= r.x && py >= r.y && py <= r.y + r.height) { - result = item; - } - } - return result; - } - - protected class InternalMouseListener extends MouseAdapter implements MouseMoveListener { - protected int columnDragged = -1; - protected boolean isDown = false; - protected int prevX = -1; - protected Cursor cursor = null; - - public void mouseMove(MouseEvent e) { - if (e.x > columnPosition - columnHitWidth && e.x < columnPosition + columnHitWidth) { - if (cursor == null) { - cursor = new Cursor(fTree.getDisplay(), SWT.CURSOR_SIZEWE); - fTree.setCursor(cursor); - } - } - else { - if (cursor != null) { - fTree.setCursor(null); - cursor.dispose(); - cursor = null; - } - } - - if (columnDragged != -1) { - // using the delay timer will make redraws less flickery - if (e.x > 20) { - columnPosition = e.x; - delayedDrawTimer.reset(20); - } - } - } - - public void mouseDown(MouseEvent e) { - // here we handle the column resizing by detect if the user has - // click on a column separator - // - columnDragged = -1; - editManager.deactivateCellEditor(); - - if (e.x > columnPosition - columnHitWidth && e.x < columnPosition + columnHitWidth) { - columnDragged = 0; - } - - // here we handle selecting tree items when any thing on the 'row' - // is clicked - // - TreeItem item = fTree.getItem(new Point(e.x, e.y)); - if (item == null) { - item = getTreeItemOnRow(e.x, e.y); - if (item != null) { - TreeItem[] items = new TreeItem[1]; - items[0] = item; - fTree.setSelection(items); - } - } - } - - public void mouseUp(MouseEvent e) { - columnDragged = -1; - } - } - - public String[] getColumnProperties() { - return fColumnProperties; - } - - public void setColumnProperties(String[] columnProperties) { - this.fColumnProperties = columnProperties; - } - - public void paintControl(PaintEvent event) { - GC gc = event.gc; - Rectangle treeBounds = fTree.getBounds(); - - controlWidth = treeBounds.width; - Color bg = fTree.getDisplay().getSystemColor(SWT.COLOR_LIST_BACKGROUND); - Color bg2 = fTree.getDisplay().getSystemColor(SWT.COLOR_LIST_SELECTION); - - gc.setBackground(bg2); - - // // This next part causes problems on LINUX, so let's not do it - // there - // if (B2BHacks.IS_UNIX == false) { - // TreeItem[] selectedItems = tree.getSelection(); - // if (selectedItems.length > 0) { - // for (int i = 0; i < selectedItems.length; i++) { - // TreeItem item = selectedItems[i]; - // Rectangle bounds = item.getBounds(); - // if (bounds != null) { - // gc.fillRectangle(bounds.x + bounds.width, bounds.y, controlWidth, - // bounds.height); - // } - // } - // } - // } - // - if (!fisUnsupportedInput) { - TreeItem[] items = fTree.getItems(); - if (items.length > 0) { - gc.setForeground(tableLineColor); - gc.setBackground(bg); - - gc.fillRectangle(columnPosition, treeBounds.x, treeBounds.width, treeBounds.height); - - Rectangle itemBounds = items[0].getBounds(); - int height = computeTreeItemHeight(); - - if (itemBounds != null) { - /* - * Bounds will be for the first item, which will either be - * visible at the top of the Tree, or scrolled off with - * negative values - */ - int startY = itemBounds.y; - - /* Only draw lines within the Tree boundaries */ - for (int i = startY; i < treeBounds.height; i += height) { - if (i >= treeBounds.y) { - gc.drawLine(0, i, treeBounds.width, i); - } - } - } - gc.drawLine(columnPosition, 0, columnPosition, treeBounds.height); - paintItems(gc, items, treeBounds); - - } - else { - addEmptyTreeMessage(gc); - } - } - else { - addUnableToPopulateTreeMessage(gc); - } - } - - protected int computeTreeItemHeight() { - int result = -1; - - /* - * On GTK tree.getItemHeight() seems to lie to us. It reports that the - * tree item occupies a few pixles less vertical space than it should - * (possibly because of the image height vs. the text height?). This - * foils our code that draws the 'row' lines since we assume that - * lines should be drawn at 'itemHeight' increments. Don't trust - * getItemHeight() to compute the increment... instead compute the - * value based on distance between two TreeItems, and then use the - * larger value. - * - * This strategy only works on trees where the items are of even - * height, however bug - * https://bugs.eclipse.org/bugs/show_bug.cgi?id=117201 indicates that - * this is no longer promised, at least on win32 and likely on other - * platforms soon. - */ - if (fTree.getItemCount() > 0) { - TreeItem[] items = fTree.getItems(); - Rectangle itemBounds = items[0].getBounds(); - - if (items[0].getExpanded()) { - TreeItem[] children = items[0].getItems(); - if (children.length > 0) { - result = children[0].getBounds().y - itemBounds.y; - } - } - else if (items.length > 1) { - result = items[1].getBounds().y - itemBounds.y; - } - } - - result = Math.max(fTree.getItemHeight(), result); - return result; - } - - protected void addEmptyTreeMessage(GC gc) { - // nothing to add here - } - - private void addUnableToPopulateTreeMessage(GC gc) { - // here we print a message when the document cannot be displayed just - // to give the - // user a visual cue - // so that they know how to proceed to edit the blank view - gc.setForeground(fTree.getDisplay().getSystemColor(SWT.COLOR_BLACK)); - gc.setBackground(fTree.getDisplay().getSystemColor(SWT.COLOR_LIST_BACKGROUND)); - gc.drawString(XMLEditorMessages.TreeExtension_0, 10, 10); - } - - void setIsUnsupportedInput(boolean isUnsupported) { - fisUnsupportedInput = isUnsupported; - } - - public void paintItems(GC gc, TreeItem[] items, Rectangle treeBounds) { - if (items != null) { - for (int i = 0; i < items.length; i++) { - TreeItem item = items[i]; - if (item != null) { - Rectangle bounds = item.getBounds(); - if (bounds != null) { - if (treeBounds.intersects(bounds)) { - paintItem(gc, item, bounds); - } - } - - // defect 241039 - // - if (item.getExpanded()) { - paintItems(gc, item.getItems(), treeBounds); - } - } - } - } - } - - protected void paintItem(GC gc, TreeItem item, Rectangle bounds) { - // nothing to paint - } - - public interface ICellEditorProvider { - CellEditor getCellEditor(Object o, int col); - } - - /** - * This class is used to improve drawing during a column resize. - */ - public class DelayedDrawTimer implements Runnable { - protected Control control; - - public DelayedDrawTimer(Control control1) { - this.control = control1; - } - - public void reset(int milliseconds) { - getDisplay().timerExec(milliseconds, this); - } - - public void run() { - control.redraw(); - } - } - - Display getDisplay() { - - return PlatformUI.getWorkbench().getDisplay(); - } - - /** - * EditManager - */ - public class EditManager { - protected Tree fTree1; - protected Control cellEditorHolder; - protected CellEditorState cellEditorState; - - public EditManager(Tree tree) { - this.fTree1 = tree; - this.cellEditorHolder = new Composite(tree, SWT.NONE); - - final Tree theTree = tree; - - MouseAdapter theMouseAdapter = new MouseAdapter() { - public void mouseDown(MouseEvent e) { - deactivateCellEditor(); - - if (e.x > columnPosition + columnHitWidth) { - TreeItem[] items = theTree.getSelection(); - // No edit if more than one row is selected. - if (items.length == 1) { - Rectangle bounds = items[0].getBounds(); - if (bounds != null && e.y >= bounds.y && e.y <= bounds.y + bounds.height) { - int columnToEdit = 1; - activateCellEditor(items[0], columnToEdit); - } - } - } - } - }; - - SelectionListener selectionListener = new SelectionListener() { - public void widgetDefaultSelected(SelectionEvent e) { - applyCellEditorValue(); - } - - public void widgetSelected(SelectionEvent e) { - applyCellEditorValue(); - } - }; - - KeyListener keyListener = new KeyAdapter() { - public void keyPressed(KeyEvent e) { - if (e.character == SWT.CR) { - deactivateCellEditor(); - TreeItem[] items = theTree.getSelection(); - if (items.length == 1) { - activateCellEditor(items[0], 1); - } - } - } - }; - - tree.addMouseListener(theMouseAdapter); - tree.addKeyListener(keyListener); - ScrollBar hBar = tree.getHorizontalBar(); - if (hBar != null) - hBar.addSelectionListener(selectionListener); - ScrollBar vBar = tree.getVerticalBar(); - if (vBar != null) - vBar.addSelectionListener(selectionListener); - } - - public boolean isCellEditorActive() { - return cellEditorState != null; - } - - public void applyCellEditorValue() { - if (cellEditorState != null && cellModifier != null) { - TreeItem treeItem = cellEditorState.fTreeItem; - - // The area below the cell editor needs to be explicity - // repainted on Linux - // - // Rectangle r = B2BHacks.IS_UNIX ? treeItem.getBounds() : - // null; - - Object value = cellEditorState.fCellEditor.getValue(); - String property = cellEditorState.fProperty; - - deactivateCellEditor(); - - cellModifier.modify(treeItem, property, value); - - // if (r != null) { - // tree.redraw(r.x, r.y, tree.getBounds().width, r.height, - // false); - // } - } - } - - public void deactivateCellEditor() { - // Clean up any previous editor control - if (cellEditorState != null) { - cellEditorState.deactivate(); - cellEditorState = null; - } - } - - public void activateCellEditor(TreeItem treeItem, int column) { - if (cellModifier instanceof ICellEditorProvider) { - ICellEditorProvider cellEditorProvider = (ICellEditorProvider) cellModifier; - Object data = treeItem.getData(); - if (fColumnProperties.length > column) { - String property = fColumnProperties[column]; - if (cellModifier.canModify(data, property)) { - CellEditor newCellEditor = cellEditorProvider.getCellEditor(data, column); - if (newCellEditor != null) { - // The control that will be the editor must be a - // child of the columnPosition - Control control = newCellEditor.getControl(); - if (control != null) { - cellEditorState = new CellEditorState(newCellEditor, control, treeItem, column, property); - cellEditorState.activate(); - } - } - } - } - } - } - - /** - * this class holds the state that is need on a per cell editor - * invocation basis - */ - public class CellEditorState implements ICellEditorListener, FocusListener { - public CellEditor fCellEditor; - public Control fControl; - public TreeItem fTreeItem; - public int fColumnNumber; - public String fProperty; - - public CellEditorState(CellEditor cellEditor, Control control, TreeItem treeItem, int columnNumber, String property) { - this.fCellEditor = cellEditor; - this.fControl = control; - this.fTreeItem = treeItem; - this.fColumnNumber = columnNumber; - this.fProperty = property; - } - - public void activate() { - Object element = fTreeItem.getData(); - String value = cellModifier.getValue(element, fProperty).toString(); - if (fControl instanceof Text) { - Text text = (Text) fControl; - int requiredSize = value.length() + 100; - if (text.getTextLimit() < requiredSize) { - text.setTextLimit(requiredSize); - } - } - Rectangle r = fTreeItem.getBounds(); - if (r != null) { - fControl.setBounds(columnPosition + 5, r.y + 1, fTree1.getClientArea().width - (columnPosition + 5), r.height - 1); - fControl.setVisible(true); - fCellEditor.setValue(value); - fCellEditor.addListener(this); - fCellEditor.setFocus(); - fControl.addFocusListener(this); - } - } - - public void deactivate() { - fCellEditor.removeListener(this); - fControl.removeFocusListener(this); - fCellEditor.deactivate(); - fTree1.forceFocus(); - } - - // ICellEditorListener methods - // - public void applyEditorValue() { - applyCellEditorValue(); - } - - public void cancelEditor() { - deactivateCellEditor(); - } - - public void editorValueChanged(boolean oldValidState, boolean newValidState) { - // nothing, for now - } - - // FocusListener methods - // - public void focusGained(FocusEvent e) { - // do nothing - } - - public void focusLost(FocusEvent e) { - applyCellEditorValue(); - } - } - } -}
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