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editor.ParserFeedbackPanel Maven / Gradle / Ivy
/*
*
* Copyright 2010 Guidewire Software, Inc.
*
*/
package editor;
import editor.util.EditorUtilities;
import editor.util.HTMLEscapeUtil;
import gw.lang.IIssue;
import gw.lang.IIssueContainer;
import javax.swing.*;
import javax.swing.text.Highlighter;
import java.awt.*;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionListener;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* Displays gosu parser error feedback within a GosuEditor.
*/
public class ParserFeedbackPanel extends JPanel
{
private JLabel _icon;
private FeedbackMargin _feedback;
private EditorHost _editor;
public ParserFeedbackPanel()
{
configureUI();
}
/**
* Updates this panel with current parser feedback.
*
* @param editor The Gosu editor
*/
public void update( EditorHost editor )
{
_editor = editor;
_icon.setIcon( findIconForResults() );
_feedback.repaint();
repaint();
editor.repaint();
}
private Icon findIconForResults()
{
IIssueContainer issues = _editor.getIssues();
if( issues.isEmpty() )
{
return EditorUtilities.loadIcon( "images/rule_green.gif" );
}
if( !issues.getErrors().isEmpty() )
{
return EditorUtilities.loadIcon( "images/rule_red.gif" );
}
return EditorUtilities.loadIcon( "images/rule_yellow.gif" );
}
void configureUI()
{
setLayout( new BorderLayout() );
setBackground( Scheme.active().getControl() );
setBorder( null );
_icon = new JLabel();
_icon.setBorder( BorderFactory.createEmptyBorder( 1, 1, 1, 1 ) );
add( _icon, BorderLayout.NORTH );
_feedback = new FeedbackMargin();
ToolTipManager.sharedInstance().registerComponent( _feedback );
add( _feedback, BorderLayout.CENTER );
}
private class FeedbackMargin extends JPanel
{
private Point _iMousePos;
FeedbackMargin()
{
MarkMouseHandler errorMarkMouser = new MarkMouseHandler();
addMouseMotionListener( errorMarkMouser );
addMouseListener( errorMarkMouser );
}
@Override
public void paintComponent( Graphics g )
{
super.paintComponent( g );
if( _editor == null )
{
return;
}
int iLineCount = getLineCount();
paintHighlightMarks( g, iLineCount );
paintIssueMarks( g, iLineCount );
}
private void paintIssueMarks( Graphics g, int iLineCount )
{
//noinspection ThrowableResultOfMethodCallIgnored
IIssueContainer pe = _editor.getIssues();
if( pe != null )
{
Iterable warnings = pe.getWarnings();
for( IIssue issue: warnings )
{
paintWarningMark( g, issue, iLineCount );
}
Iterable errors = pe.getErrors();
for( IIssue issue: errors )
{
paintErrorMark( g, issue, iLineCount );
}
}
}
private void paintHighlightMarks( Graphics g, int iLineCount )
{
for( Highlighter.Highlight highlight : _editor.getEditor().getHighlighter().getHighlights() )
{
Highlighter.HighlightPainter painter = highlight.getPainter();
if( painter == GosuEditor.LabHighlighter.TEXT || painter == GosuEditor.LabHighlighter.USAGE )
{
int line = _editor.getEditor().getDocument().getDefaultRootElement().getElementIndex( highlight.getStartOffset() );
paintHighlightMark( g, line, iLineCount );
}
}
}
private void paintWarningMark( Graphics g, IIssue w, int iLineCount )
{
int iMark = getMarkForLine( w.getLine(), iLineCount );
g.setColor( Scheme.active().getColorWarning() );
g.fillRect( 1, iMark - 1, getWidth() - 2, 3 );
g.setColor( Scheme.active().getColorWarningShadow() );
g.drawLine( 2, iMark + 1, getWidth() - 2, iMark + 1 );
g.drawLine( getWidth() - 2, iMark - 1, getWidth() - 2, iMark + 1 );
}
private void paintErrorMark( Graphics g, IIssue e, int iLineCount )
{
int iMark = getMarkForLine( e.getLine(), iLineCount );
g.setColor( Scheme.active().getColorError() );
g.fillRect( 1, iMark - 1, getWidth() - 2, 3 );
g.setColor( Scheme.active().getColorErrorShadow() );
g.drawLine( 2, iMark + 1, getWidth() - 2, iMark + 1 );
g.drawLine( getWidth() - 2, iMark - 1, getWidth() - 2, iMark + 1 );
}
private void paintHighlightMark( Graphics g, int line, int iLineCount )
{
int iMark = getMarkForLine( line, iLineCount );
g.setColor( Scheme.active().usageReadHighlightColor() );
g.fillRect( 1, iMark - 1, getWidth() - 2, 3 );
g.setColor( Scheme.active().usageReadHighlightShadowColor() );
g.drawLine( 2, iMark + 1, getWidth() - 2, iMark + 1 );
g.drawLine( getWidth() - 2, iMark - 1, getWidth() - 2, iMark + 1 );
}
@Override
public String getToolTipText()
{
if( _iMousePos == null )
{
return null;
}
return makeToolTipText( getErrorsFromCursorPos() );
}
private String makeToolTipText( List issues )
{
if( issues == null || issues.isEmpty() )
{
return null;
}
String strFeedback = "";
for( int i = issues.size() - 1; i >= 0; i-- )
{
if( strFeedback.length() > 0 )
{
strFeedback += " getErrorsFromCursorPos()
{
if( _editor == null )
{
return Collections.emptyList();
}
List matches = new ArrayList<>();
//noinspection ThrowableResultOfMethodCallIgnored
IIssueContainer pe = _editor.getIssues();
if( pe == null )
{
return matches;
}
int iLineCount = getLineCount();
List pes = pe.getIssues();
for( int i = pes.size() - 1; i >= 0; i-- )
{
IIssue e = pes.get( i );
int iMark = getMarkForLine( e.getLine(), iLineCount );
if( iMark >= _iMousePos.y - 3 && iMark <= _iMousePos.y + 3 )
{
matches.add( e );
}
}
return matches;
}
private List getHighlightsFromCursorPos()
{
if( _editor == null )
{
return Collections.emptyList();
}
List matches = new ArrayList<>();
int iLineCount = getLineCount();
for( Highlighter.Highlight highlight : _editor.getEditor().getHighlighter().getHighlights() )
{
Highlighter.HighlightPainter painter = highlight.getPainter();
if( painter == GosuEditor.LabHighlighter.TEXT || painter == GosuEditor.LabHighlighter.USAGE )
{
int line = _editor.getEditor().getDocument().getDefaultRootElement().getElementIndex( highlight.getStartOffset() );
int iMark = getMarkForLine( line, iLineCount );
if( iMark >= _iMousePos.y - 3 && iMark <= _iMousePos.y + 3 )
{
matches.add( highlight );
}
}
}
return matches;
}
private int getMarkForLine( int line, int iLineCount )
{
iLineCount--;
if( iLineCount == 0 )
{
return getHeight() / 2;
}
int iLine = line - 1;
float fOffset = (float)iLine / (float)iLineCount;
return (int)((getHeight() - 10) * fOffset) + 5;
}
public int getLineCount()
{
int iLinesOfCode = _editor.getEditor().getDocument().getDefaultRootElement().getElementCount();
int iViewHeight = _editor.getScroller().getViewport().getHeight();
FontMetrics fm = _editor.getEditor().getFontMetrics( _editor.getEditor().getFont() );
int iLineHeight = fm.getHeight();
int iViewLines = iViewHeight / iLineHeight;
return Math.max( iViewLines, iLinesOfCode );
}
private class MarkMouseHandler extends MouseAdapter implements MouseMotionListener
{
@Override
public void mouseMoved( MouseEvent e )
{
_iMousePos = e.getPoint();
List errors = getErrorsFromCursorPos();
if( !errors.isEmpty() )
{
setCursor( Cursor.getPredefinedCursor( Cursor.HAND_CURSOR ) );
}
else
{
List highlights = getHighlightsFromCursorPos();
if( !highlights.isEmpty() )
{
setCursor( Cursor.getPredefinedCursor( Cursor.HAND_CURSOR ) );
}
else
{
setCursor( Cursor.getDefaultCursor() );
}
}
}
@Override
public void mouseClicked( MouseEvent e )
{
List errors = getErrorsFromCursorPos();
if( !errors.isEmpty() )
{
_editor.getEditor().requestFocusInWindow();
_editor.getEditor().setCaretPosition( errors.get( 0 ).getStartOffset() );
}
else
{
List highlights = getHighlightsFromCursorPos();
if( !highlights.isEmpty() )
{
_editor.getEditor().requestFocusInWindow();
_editor.getEditor().setCaretPosition( highlights.get( 0 ).getStartOffset() );
}
}
}
@Override
public void mouseDragged( MouseEvent e )
{
}
}
}
}
