public void actionPerformed(ActionEvent e) {
JGrid grid = (JGrid) e.getSource();
if (toLimit) {
if (vertically) {
int rowCount = grid.getRowCount();
this.dx = 0;
this.dy = forwards ? rowCount : -rowCount;
} else {
int colCount = grid.getColumnCount();
this.dx = forwards ? colCount : -colCount;
this.dy = 0;
}
} else {
if (!(grid.getParent().getParent() instanceof JScrollPane)) {
return;
}
Dimension delta = grid.getParent().getSize();
SelectionModel sm = grid.getSelectionModel();
int start = 0;
if (vertically) {
start = (extend) ? sm.getLeadRow() : sm.getAnchorRow();
} else {
start = (extend) ? sm.getLeadColumn() : sm.getAnchorColumn();
}
if (vertically) {
Rectangle r = grid.getCellBounds(start, 0);
r.y += forwards ? delta.height : -delta.height;
this.dx = 0;
int newRow = grid.rowAtPoint(r.getLocation());
if (newRow == -1 && forwards) {
newRow = grid.getRowCount();
}
this.dy = newRow - start;
} else {
Rectangle r = grid.getCellBounds(0, start);
r.x += forwards ? delta.width : -delta.width;
int newColumn = grid.columnAtPoint(r.getLocation());
if (newColumn == -1 && forwards) {
newColumn = grid.getColumnCount();
}
this.dx = newColumn - start;
this.dy = 0;
}
}
super.actionPerformed(e);
}
protected void paintEditor(Graphics g) {
Component component = grid.getEditorComponent();
if (component == null) {
return;
}
Rectangle cellBounds = grid.getCellBounds(grid.getEditingRow(), grid.getEditingColumn());
component.setBounds(cellBounds);
component.validate();
component.requestFocus();
}
public Dimension getMaximumSize(JComponent c) {
int lastRow = grid.getRowCount() - 1;
int lastCol = grid.getColumnCount() - 1;
Rectangle cellBounds = grid.getCellBounds(lastRow, lastCol);
int width = cellBounds.x + cellBounds.width;
int height = cellBounds.y + cellBounds.height;
return new Dimension(width, height);
}
protected void paintCells(Graphics g, int rowMin, int rowMax, int colMin, int colMax) {
for (int row = rowMin; row <= rowMax; row++) {
for (int column = colMin; column <= colMax; column++) {
/* Paint cell if it is atomic */
if (!grid.isCellSpan(row, column)) {
Rectangle cellBounds = grid.getCellBounds(row, column);
paintCell(g, cellBounds, row, column);
}
}
}
}
/*
* Borders are handled by the UI since they are shared between cells
* and therefore must overlay after the painting of the cells
*/
private void paintBorders(Graphics g, int rowMin, int rowMax, int colMin, int colMax) {
// Include borders from adjacent rows/columns of the clip region
rowMin = Math.max(0, rowMin - 1);
rowMax = Math.min(grid.getRowCount() - 1, rowMax + 1);
colMin = Math.max(0, colMin - 1);
colMax = Math.min(grid.getColumnCount() - 1, colMax + 1);
for (int row = rowMin; row <= rowMax; row++) {
for (int column = colMin; column <= colMax; column++) {
Rectangle cellRect = grid.getCellBounds(row, column);
paintBorder(g, cellRect, row, column);
}
}
}
/** special paint handler for merged cell regions */
protected void paintSpans(Graphics g, int rowMin, int rowMax, int colMin, int colMax) {
Rectangle clip = g.getClipBounds();
Iterator cell = grid.getSpanModel().getSpanIterator();
while (cell.hasNext()) {
CellSpan span = (CellSpan) cell.next();
Rectangle cellBounds = grid.getCellBounds(span.getRow(), span.getColumn());
// Only paint cell if visible
if (span.getLastRow() >= rowMin
&& span.getLastColumn() >= colMin
&& span.getFirstRow() <= rowMax
&& span.getFirstColumn() <= colMax) {
paintCell(g, cellBounds, span.getRow(), span.getColumn());
// Paint grid line around cell
if (grid.getShowGrid()) {
g.setColor(grid.getGridColor());
g.drawRect(cellBounds.x, cellBounds.y, cellBounds.width, cellBounds.height);
}
}
}
}