public void actionPerformed(ActionEvent evt)
{
JEditTextArea textArea = getTextArea(evt);
int caret = textArea.getCaretPosition();
int line = textArea.getCaretLine();
if(line == 0)
{
textArea.getToolkit().beep();
return;
}
int magic = textArea.getMagicCaretPosition();
if(magic == -1)
{
magic = textArea.offsetToX(line,
caret - textArea.getLineStartOffset(line));
}
caret = textArea.getLineStartOffset(line - 1)
+ textArea.xToOffset(line - 1,magic);
if(select)
textArea.select(textArea.getMarkPosition(),caret);
else
textArea.setCaretPosition(caret);
textArea.setMagicCaretPosition(magic);
}
public void actionPerformed(ActionEvent evt)
{
JEditTextArea textArea = getTextArea(evt);
int caret = textArea.getCaretPosition();
int firstLine = textArea.getFirstLine();
int firstOfLine = textArea.getLineStartOffset(
textArea.getCaretLine());
int firstVisibleLine = (firstLine == 0 ? 0 :
firstLine + textArea.getElectricScroll());
int firstVisible = textArea.getLineStartOffset(
firstVisibleLine);
if(caret == 0)
{
textArea.getToolkit().beep();
return;
}
else if(!Boolean.TRUE.equals(textArea.getClientProperty(
SMART_HOME_END_PROPERTY)))
caret = firstOfLine;
else if(caret == firstVisible)
caret = 0;
else if(caret == firstOfLine)
caret = firstVisible;
else
caret = firstOfLine;
if(select)
textArea.select(textArea.getMarkPosition(),caret);
else
textArea.setCaretPosition(caret);
}
public void actionPerformed(ActionEvent evt)
{
JEditTextArea textArea = getTextArea(evt);
int caret = textArea.getCaretPosition();
int line = textArea.getCaretLine();
int lineStart = textArea.getLineStartOffset(line);
caret -= lineStart;
String lineText = textArea.getLineText(textArea
.getCaretLine());
if(caret == 0)
{
if(lineStart == 0)
{
textArea.getToolkit().beep();
return;
}
caret--;
}
else
{
String noWordSep = (String)textArea.getDocument().getProperty("noWordSep");
caret = TextUtilities.findWordStart(lineText,caret,noWordSep);
}
if(select)
textArea.select(textArea.getMarkPosition(),
lineStart + caret);
else
textArea.setCaretPosition(lineStart + caret);
}
public void actionPerformed(ActionEvent evt)
{
JEditTextArea textArea = getTextArea(evt);
int firstLine = textArea.getFirstLine();
int visibleLines = textArea.getVisibleLines();
int line = textArea.getCaretLine();
if(firstLine < visibleLines)
firstLine = visibleLines;
textArea.setFirstLine(firstLine - visibleLines);
int caret = textArea.getLineStartOffset(
Math.max(0,line - visibleLines));
if(select)
textArea.select(textArea.getMarkPosition(),caret);
else
textArea.setCaretPosition(caret);
}
public void actionPerformed(ActionEvent evt)
{
JEditTextArea textArea = getTextArea(evt);
int start = textArea.getSelectionStart();
if(start != textArea.getSelectionEnd())
{
textArea.setSelectedText("");
}
int line = textArea.getCaretLine();
int lineStart = textArea.getLineStartOffset(line);
int caret = start - lineStart;
String lineText = textArea.getLineText(textArea
.getCaretLine());
if(caret == 0)
{
if(lineStart == 0)
{
textArea.getToolkit().beep();
return;
}
caret--;
}
else
{
String noWordSep = (String)textArea.getDocument().getProperty("noWordSep");
caret = TextUtilities.findWordStart(lineText,caret,noWordSep);
}
try
{
textArea.getDocument().remove(
caret + lineStart,
start - (caret + lineStart));
}
catch(BadLocationException bl)
{
bl.printStackTrace();
}
}
public void actionPerformed(ActionEvent evt)
{
JEditTextArea textArea = getTextArea(evt);
int lineCount = textArea.getLineCount();
int firstLine = textArea.getFirstLine();
int visibleLines = textArea.getVisibleLines();
int line = textArea.getCaretLine();
firstLine += visibleLines;
if(firstLine + visibleLines >= lineCount - 1)
firstLine = lineCount - visibleLines;
textArea.setFirstLine(firstLine);
int caret = textArea.getLineStartOffset(
Math.min(textArea.getLineCount() - 1,
line + visibleLines));
if(select)
textArea.select(textArea.getMarkPosition(),caret);
else
textArea.setCaretPosition(caret);
}