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 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 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);
if(!textArea.isEditable())
{
textArea.getToolkit().beep();
return;
}
if(textArea.getSelectionStart()
!= textArea.getSelectionEnd())
{
textArea.setSelectedText("");
}
else
{
int caret = textArea.getCaretPosition();
if(caret == textArea.getDocumentLength())
{
textArea.getToolkit().beep();
return;
}
try
{
textArea.getDocument().remove(caret,1);
}
catch(BadLocationException bl)
{
bl.printStackTrace();
}
}
}
protected void paintCaret(Graphics gfx, int line, int y) {
// System.out.println("painting caret " + line + " " + y);
if (textArea.isCaretVisible()) {
// System.out.println("caret is visible");
int offset = textArea.getCaretPosition() - textArea.getLineStartOffset(line);
int caretX = textArea._offsetToX(line, offset);
int caretWidth = ((blockCaret || textArea.isOverwriteEnabled()) ? fm.charWidth('w') : 1);
y += fm.getLeading() + fm.getMaxDescent();
int height = fm.getHeight();
// System.out.println("caretX, width = " + caretX + " " + caretWidth);
gfx.setColor(caretColor);
if (textArea.isOverwriteEnabled()) {
gfx.fillRect(caretX, y + height - 1, caretWidth, 1);
} else {
// some machines don't like the drawRect for the single
// pixel caret.. this caused a lot of hell because on that
// minority of machines, the caret wouldn't show up past
// the first column. the fix is to use drawLine() in
// those cases, as a workaround.
if (caretWidth == 1) {
gfx.drawLine(caretX, y, caretX, y + height - 1);
} else {
gfx.drawRect(caretX, y, caretWidth - 1, height - 1);
}
// gfx.drawRect(caretX, y, caretWidth, height - 1);
}
}
}
public void actionPerformed(ActionEvent evt)
{
JEditTextArea textArea = getTextArea(evt);
int caret = textArea.getCaretPosition();
if(caret == 0)
{
textArea.getToolkit().beep();
return;
}
if(select)
textArea.select(textArea.getMarkPosition(),
caret - 1);
else
textArea.setCaretPosition(caret - 1);
}
protected void paintCaret(Graphics gfx, int line, int y) {
if (textArea.isCaretVisible()) {
int offset = textArea.getCaretPosition() - textArea.getLineStartOffset(line);
int caretX = textArea._offsetToX(line, offset);
int caretWidth = ((blockCaret || textArea.isOverwriteEnabled()) ? fm.charWidth('w') : 1);
y += fm.getLeading() + fm.getMaxDescent();
int height = fm.getHeight();
gfx.setColor(caretColor);
if (textArea.isOverwriteEnabled()) {
gfx.fillRect(caretX, y + height - 1, caretWidth, 1);
} else {
gfx.drawRect(caretX, y, caretWidth - 1, height - 1);
}
}
}
public void actionPerformed(ActionEvent evt)
{
JEditTextArea textArea = getTextArea(evt);
int caret = textArea.getCaretPosition();
int lastOfLine = textArea.getLineEndOffset(
textArea.getCaretLine()) - 1;
int lastVisibleLine = textArea.getFirstLine()
+ textArea.getVisibleLines();
if(lastVisibleLine >= textArea.getLineCount())
{
lastVisibleLine = Math.min(textArea.getLineCount() - 1,
lastVisibleLine);
}
else
lastVisibleLine -= (textArea.getElectricScroll() + 1);
int lastVisible = textArea.getLineEndOffset(lastVisibleLine) - 1;
int lastDocument = textArea.getDocumentLength();
if(caret == lastDocument)
{
textArea.getToolkit().beep();
return;
}
else if(!Boolean.TRUE.equals(textArea.getClientProperty(
SMART_HOME_END_PROPERTY)))
caret = lastOfLine;
else if(caret == lastVisible)
caret = lastDocument;
else if(caret == lastOfLine)
caret = lastVisible;
else
caret = lastOfLine;
if(select)
textArea.select(textArea.getMarkPosition(),caret);
else
textArea.setCaretPosition(caret);
}