mirror of
https://github.com/eclipse-cdt/cdt
synced 2025-07-25 01:45:33 +02:00
removed unsed hyperlink stuff which leaked cursors
This commit is contained in:
parent
6e2179b64b
commit
339d480d39
4 changed files with 28 additions and 229 deletions
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@ -1,3 +1,7 @@
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2002-11-27 David Inglis
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* utils.ui/.../controls/ControlFactory.java:
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removed unsed hyperlink stuff since it was leaking Cursors.
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2002-11-27 Alain Magloire
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* src/.../internal/ui/preferences/CProjectPropertyPage.java:
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@ -5,32 +5,39 @@ package org.eclipse.cdt.utils.ui.controls;
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* All Rights Reserved.
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*/
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import org.eclipse.swt.custom.CCombo;
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import org.eclipse.swt.events.*;
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import org.eclipse.swt.graphics.Color;
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import org.eclipse.swt.graphics.Font;
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import org.eclipse.swt.graphics.FontData;
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import org.eclipse.swt.widgets.*;
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import org.eclipse.swt.widgets.List;
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import org.eclipse.swt.widgets.TableColumn;
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import org.eclipse.swt.layout.*;
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import java.util.StringTokenizer;
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import org.eclipse.jface.viewers.CellEditor;
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import org.eclipse.jface.viewers.CheckboxTableViewer;
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import org.eclipse.jface.viewers.ColumnWeightData;
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import org.eclipse.jface.viewers.TableLayout;
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import org.eclipse.jface.viewers.TableViewer;
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import org.eclipse.ui.PlatformUI;
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import org.eclipse.swt.SWT;
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import java.util.StringTokenizer;
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import org.eclipse.swt.custom.CCombo;
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import org.eclipse.swt.events.SelectionListener;
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import org.eclipse.swt.graphics.Color;
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import org.eclipse.swt.graphics.Font;
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import org.eclipse.swt.graphics.FontData;
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import org.eclipse.swt.layout.GridData;
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import org.eclipse.swt.layout.GridLayout;
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import org.eclipse.swt.widgets.Button;
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import org.eclipse.swt.widgets.Combo;
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import org.eclipse.swt.widgets.Composite;
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import org.eclipse.swt.widgets.Control;
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import org.eclipse.swt.widgets.Display;
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import org.eclipse.swt.widgets.Group;
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import org.eclipse.swt.widgets.Label;
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import org.eclipse.swt.widgets.List;
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import org.eclipse.swt.widgets.MessageBox;
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import org.eclipse.swt.widgets.Shell;
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import org.eclipse.swt.widgets.Table;
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import org.eclipse.swt.widgets.TableColumn;
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import org.eclipse.swt.widgets.TableItem;
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import org.eclipse.swt.widgets.Text;
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import org.eclipse.ui.PlatformUI;
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public class ControlFactory {
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private static HyperlinkHandler defaultHyperlinkHandler = new HyperlinkHandler();
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public static void dispose() {
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defaultHyperlinkHandler.dispose();
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}
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public static Control setParentColors(Control control) {
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Composite parent = control.getParent();
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control.setBackground(parent.getBackground());
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@ -164,28 +171,7 @@ public class ControlFactory {
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return createLabel(parent, text, widthHint, heightHint, SWT.LEFT | SWT.WRAP);
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}
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/**
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* Utility method that creates a HyperLinkLabel instance
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* and sets the default layout data.
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*
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* @param parent the parent for the new label
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* @param text the text for the new label
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* @param TypedListener click event listener
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* @return the new label
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*/
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public static Label createHyperlinkLabel(Composite parent, String text, IHyperlinkListener listener,
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HyperlinkHandler hyperlinkHandler) {
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Label label = createLabel(parent, text);
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turnIntoHyperlink(label, listener,
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(null == hyperlinkHandler) ? defaultHyperlinkHandler : hyperlinkHandler);
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return label;
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}
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public static void turnIntoHyperlink(Control control, IHyperlinkListener listener,
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HyperlinkHandler hyperlinkHandler) {
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hyperlinkHandler.registerHyperlink(control, listener);
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}
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/**
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* Creates an new checkbox instance and sets the default
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* layout data.
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@ -1,176 +0,0 @@
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package org.eclipse.cdt.utils.ui.controls;
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/*
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* (c) Copyright IBM Corp. 2000, 2001.
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* All Rights Reserved.
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*/
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import org.eclipse.swt.widgets.*;
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import org.eclipse.swt.events.*;
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import org.eclipse.swt.graphics.*;
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import java.util.*;
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import org.eclipse.swt.*;
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public class HyperlinkHandler implements MouseListener, MouseTrackListener, PaintListener {
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public static final int UNDERLINE_NEVER = 1;
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public static final int UNDERLINE_ROLLOVER = 2;
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public static final int UNDERLINE_ALWAYS = 3;
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private Cursor hyperlinkCursor;
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private Cursor busyCursor;
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private boolean hyperlinkCursorUsed=true;
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private int hyperlinkUnderlineMode=UNDERLINE_ALWAYS;
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private Color background;
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private Color foreground;
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private Color activeBackground;
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private Color activeForeground;
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private Hashtable hyperlinkListeners;
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private Control lastLink;
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public HyperlinkHandler() {
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hyperlinkListeners = new Hashtable();
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hyperlinkCursor = new Cursor(Display.getCurrent(), SWT.CURSOR_HAND);
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busyCursor = new Cursor(Display.getCurrent(), SWT.CURSOR_WAIT);
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}
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public void dispose() {
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hyperlinkCursor.dispose();
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busyCursor.dispose();
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}
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public org.eclipse.swt.graphics.Color getActiveBackground() {
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return activeBackground;
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}
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public org.eclipse.swt.graphics.Color getActiveForeground() {
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return activeForeground;
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}
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public org.eclipse.swt.graphics.Color getBackground() {
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return background;
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}
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public org.eclipse.swt.graphics.Cursor getBusyCursor() {
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return busyCursor;
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}
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public org.eclipse.swt.graphics.Color getForeground() {
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return foreground;
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}
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public org.eclipse.swt.graphics.Cursor getHyperlinkCursor() {
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return hyperlinkCursor;
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}
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public int getHyperlinkUnderlineMode() {
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return hyperlinkUnderlineMode;
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}
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public org.eclipse.swt.widgets.Control getLastLink() {
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return lastLink;
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}
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public boolean isHyperlinkCursorUsed() {
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return hyperlinkCursorUsed;
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}
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public void mouseDoubleClick(MouseEvent e) {
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}
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public void mouseDown(MouseEvent e) {
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if (e.button == 1)
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return;
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lastLink = (Control)e.widget;
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}
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public void mouseEnter(MouseEvent e) {
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Control control = (Control) e.widget;
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if (isHyperlinkCursorUsed())
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control.setCursor(hyperlinkCursor);
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if (activeBackground != null)
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control.setBackground(activeBackground);
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if (activeForeground != null)
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control.setForeground(activeForeground);
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if (hyperlinkUnderlineMode==UNDERLINE_ROLLOVER) underline(control, true);
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IHyperlinkListener action =
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(IHyperlinkListener) hyperlinkListeners.get(control);
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if (action != null)
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action.linkEntered(control);
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}
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public void mouseExit(MouseEvent e) {
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Control control = (Control) e.widget;
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if (isHyperlinkCursorUsed())
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control.setCursor(null);
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if (hyperlinkUnderlineMode==UNDERLINE_ROLLOVER)
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underline(control, false);
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if (background != null)
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control.setBackground(background);
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if (foreground != null)
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control.setForeground(foreground);
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IHyperlinkListener action =
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(IHyperlinkListener) hyperlinkListeners.get(control);
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if (action != null)
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action.linkExited(control);
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}
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public void mouseHover(MouseEvent e) {
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}
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public void mouseUp(MouseEvent e) {
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if (e.button != 1)
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return;
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IHyperlinkListener action =
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(IHyperlinkListener) hyperlinkListeners.get(e.widget);
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if (action != null) {
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Control c = (Control) e.widget;
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c.setCursor(busyCursor);
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action.linkActivated(c);
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if (!c.isDisposed())
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c.setCursor(isHyperlinkCursorUsed()?hyperlinkCursor:null);
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}
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}
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public void paintControl(PaintEvent e) {
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Control label = (Control) e.widget;
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if (hyperlinkUnderlineMode == UNDERLINE_ALWAYS)
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HyperlinkHandler.underline(label, true);
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}
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public void registerHyperlink(Control control, IHyperlinkListener listener) {
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if (background != null)
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control.setBackground(background);
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if (foreground != null)
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control.setForeground(foreground);
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control.addMouseListener(this);
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control.addMouseTrackListener(this);
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if (hyperlinkUnderlineMode == UNDERLINE_ALWAYS)
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control.addPaintListener(this);
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hyperlinkListeners.put(control, listener);
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removeDisposedLinks();
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}
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private void removeDisposedLinks() {
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for (Enumeration keys = hyperlinkListeners.keys(); keys.hasMoreElements();) {
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Control control = (Control)keys.nextElement();
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if (control.isDisposed()) {
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hyperlinkListeners.remove(control);
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}
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}
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}
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public void reset() {
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hyperlinkListeners.clear();
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}
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public void setActiveBackground(org.eclipse.swt.graphics.Color newActiveBackground) {
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activeBackground = newActiveBackground;
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}
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public void setActiveForeground(org.eclipse.swt.graphics.Color newActiveForeground) {
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activeForeground = newActiveForeground;
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}
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public void setBackground(org.eclipse.swt.graphics.Color newBackground) {
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background = newBackground;
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}
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public void setForeground(org.eclipse.swt.graphics.Color newForeground) {
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foreground = newForeground;
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}
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public void setHyperlinkCursorUsed(boolean newHyperlinkCursorUsed) {
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hyperlinkCursorUsed = newHyperlinkCursorUsed;
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}
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public void setHyperlinkUnderlineMode(int newHyperlinkUnderlineMode) {
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hyperlinkUnderlineMode = newHyperlinkUnderlineMode;
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}
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public static void underline(Control control, boolean inside) {
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if (!(control instanceof Label))
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return;
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Composite parent = control.getParent();
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Rectangle bounds = control.getBounds();
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GC gc = new GC(parent);
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Color color = inside? control.getForeground() : control.getBackground();
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gc.setForeground(color);
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int y = bounds.y + bounds.height;
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gc.drawLine(bounds.x, y, bounds.x+bounds.width, y);
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gc.dispose();
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}
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}
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@ -1,15 +0,0 @@
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package org.eclipse.cdt.utils.ui.controls;
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/*
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* (c) Copyright IBM Corp. 2000, 2001.
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* All Rights Reserved.
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*/
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import org.eclipse.swt.widgets.*;
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public interface IHyperlinkListener {
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public void linkActivated(Control linkLabel);
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public void linkEntered(Control linkLabel);
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public void linkExited(Control linkLabel);
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}
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