+++ /dev/null
-package net.sourceforge.phpdt.internal.ui.text;
-
-/*
- * (c) Copyright IBM Corp. 2000, 2001.
- * All Rights Reserved.
- */
-
-
-import java.io.IOException;
-import java.io.Reader;
-import java.io.StringReader;
-import java.util.Iterator;
-
-import net.sourceforge.phpdt.internal.ui.PHPUIMessages;
-import net.sourceforge.phpeclipse.PHPeclipsePlugin;
-
-import org.eclipse.jface.text.DefaultInformationControl;
-import org.eclipse.jface.text.Region;
-import org.eclipse.jface.text.TextPresentation;
-import org.eclipse.swt.custom.StyleRange;
-import org.eclipse.swt.graphics.GC;
-import org.eclipse.swt.widgets.Display;
-
-
-
-
-public class HTMLTextPresenter implements DefaultInformationControl.IInformationPresenter {
-
- private static final String LINE_DELIM= System.getProperty("line.separator", "\n"); //$NON-NLS-1$ //$NON-NLS-2$
-
- private int fCounter;
- private boolean fEnforceUpperLineLimit;
-
- public HTMLTextPresenter(boolean enforceUpperLineLimit) {
- super();
- fEnforceUpperLineLimit= enforceUpperLineLimit;
- }
-
- public HTMLTextPresenter() {
- this(true);
- }
-
- protected Reader createReader(String hoverInfo, TextPresentation presentation) {
- return new HTML2TextReader(new StringReader(hoverInfo), presentation);
- }
-
- protected void adaptTextPresentation(TextPresentation presentation, int offset, int insertLength) {
-
- int yoursStart= offset;
- int yoursEnd= offset + insertLength -1;
- yoursEnd= Math.max(yoursStart, yoursEnd);
-
- Iterator e= presentation.getAllStyleRangeIterator();
- while (e.hasNext()) {
-
- StyleRange range= (StyleRange) e.next();
-
- int myStart= range.start;
- int myEnd= range.start + range.length -1;
- myEnd= Math.max(myStart, myEnd);
-
- if (myEnd < yoursStart)
- continue;
-
- if (myStart < yoursStart)
- range.length += insertLength;
- else
- range.start += insertLength;
- }
- }
-
- private void append(StringBuffer buffer, String string, TextPresentation presentation) {
-
- int length= string.length();
- buffer.append(string);
-
- if (presentation != null)
- adaptTextPresentation(presentation, fCounter, length);
-
- fCounter += length;
- }
-
- private String getIndent(String line) {
- int length= line.length();
-
- int i= 0;
- while (i < length && Character.isWhitespace(line.charAt(i))) ++i;
-
- return (i == length ? line : line.substring(0, i)) + " "; //$NON-NLS-1$
- }
-
- /*
- * @see IHoverInformationPresenter#updatePresentation(Display display, String, TextPresentation, int, int)
- */
- public String updatePresentation(Display display, String hoverInfo, TextPresentation presentation, int maxWidth, int maxHeight) {
-
- if (hoverInfo == null)
- return null;
-
- GC gc= new GC(display);
- try {
-
- StringBuffer buffer= new StringBuffer();
- int maxNumberOfLines= Math.round(maxHeight / gc.getFontMetrics().getHeight());
-
- fCounter= 0;
- LineBreakingReader reader= new LineBreakingReader(createReader(hoverInfo, presentation), gc, maxWidth);
-
- boolean lastLineFormatted= false;
- String lastLineIndent= null;
-
- String line=reader.readLine();
- boolean lineFormatted= reader.isFormattedLine();
- boolean firstLineProcessed= false;
-
- while (line != null) {
-
- if (fEnforceUpperLineLimit && maxNumberOfLines <= 0)
- break;
-
- if (firstLineProcessed) {
- if (!lastLineFormatted)
- append(buffer, LINE_DELIM, null);
- else {
- append(buffer, LINE_DELIM, presentation);
- if (lastLineIndent != null)
- append(buffer, lastLineIndent, presentation);
- }
- }
-
- append(buffer, line, null);
- firstLineProcessed= true;
-
- lastLineFormatted= lineFormatted;
- if (!lineFormatted)
- lastLineIndent= null;
- else if (lastLineIndent == null)
- lastLineIndent= getIndent(line);
-
- line= reader.readLine();
- lineFormatted= reader.isFormattedLine();
-
- maxNumberOfLines--;
- }
-
- if (line != null) {
- append(buffer, LINE_DELIM, lineFormatted ? presentation : null);
- append(buffer, PHPUIMessages.getString("HTMLTextPresenter.ellipsis"), presentation); //$NON-NLS-1$
- }
-
- return trim(buffer, presentation);
-
- } catch (IOException e) {
-
- PHPeclipsePlugin.log(e);
- return null;
-
- } finally {
- gc.dispose();
- }
- }
-
- private String trim(StringBuffer buffer, TextPresentation presentation) {
-
- int length= buffer.length();
-
- int end= length -1;
- while (end >= 0 && Character.isWhitespace(buffer.charAt(end)))
- -- end;
-
- if (end == -1)
- return ""; //$NON-NLS-1$
-
- if (end < length -1)
- buffer.delete(end + 1, length);
- else
- end= length;
-
- int start= 0;
- while (start < end && Character.isWhitespace(buffer.charAt(start)))
- ++ start;
-
- buffer.delete(0, start);
- presentation.setResultWindow(new Region(start, buffer.length()));
- return buffer.toString();
- }
-}
-
git://secure.phpeclipse.com / phpeclipse.git / blobdiff