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Code Issues Wiki Activity

RESOLVED - bug 211659: Add FieldAssist to the terminal input field

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https://bugs.eclipse.org/bugs/show_bug.cgi?id=211659
This commit is contained in:
Michael Scharf 2007-11-30 23:51:31 +00:00
parent b660bdcc3a
commit c9a0fb7e54
1 changed files with 69 additions and 1 deletions
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70
org.eclipse.tm.terminal/src/org/eclipse/tm/internal/terminal/control/CommandInputFieldWithHistory.java
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@ -12,9 +12,14 @@ package org.eclipse.tm.internal.terminal.control;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import org.eclipse.jface.fieldassist.IContentProposal;
import org.eclipse.jface.fieldassist.IContentProposalProvider;
import org.eclipse.jface.fieldassist.TextContentAdapter;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.KeyListener;
@ -22,6 +27,7 @@ import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.fieldassist.ContentAssistCommandAdapter;
/**
@ -38,6 +44,52 @@ import org.eclipse.swt.widgets.Text;
*
*/
public class CommandInputFieldWithHistory implements ICommandInputField {
private class FieldAssist implements IContentProposalProvider {
public IContentProposal[] getProposals(String contents, int position) {
String prefix=contents.substring(0, position);
List result=new ArrayList();
// show an entry only once
Set seen=new HashSet();
for (Iterator iterator = fHistory.iterator(); iterator.hasNext();) {
String history = (String) iterator.next();
if(history.startsWith(prefix) && !seen.contains(history)) {
// the content is the rest of the history item
String content=history.substring(prefix.length());
result.add(new Proposal(content,history));
// don't add this proposal again
seen.add(history);
}
}
return (IContentProposal[]) result.toArray(new IContentProposal[result.size()]);
}
}
private static class Proposal implements IContentProposal {
private final String fContent;
private final String fLabel;
Proposal(String content, String label) {
fContent= content;
fLabel= label;
}
public String getContent() {
return fContent;
}
public String getLabel() {
return fLabel;
}
public String getDescription() {
return null;
}
public int getCursorPosition() {
return fContent.length();
}
}
final List fHistory=new ArrayList();
/**
* Keeps a modifiable history while in history editing mode
@ -149,7 +201,15 @@ public class CommandInputFieldWithHistory implements ICommandInputField {
}
public void createControl(Composite parent,final ITerminalViewControl terminal) {
fInputField=new Text(parent, SWT.SINGLE|SWT.BORDER);
fInputField.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
GridData data=new GridData(SWT.FILL, SWT.FILL, true, false);
boolean installDecoration=true;
if(installDecoration) {
// The ContentAssistCommandAdapter says: "The client is responsible for
// ensuring that adequate space is reserved for the decoration."
// TODO: what is the "adequate space"???
data.horizontalIndent=6;
}
fInputField.setLayoutData(data);
fInputField.setFont(terminal.getFont());
fInputField.addKeyListener(new KeyListener(){
public void keyPressed(KeyEvent e) {
@ -180,6 +240,14 @@ public class CommandInputFieldWithHistory implements ICommandInputField {
public void keyReleased(KeyEvent e) {
}
});
// register the field assist
new ContentAssistCommandAdapter(
fInputField,
new TextContentAdapter(),
new FieldAssist(),
null,
null,
installDecoration);
}
public void setFont(Font font) {
fInputField.setFont(font);