private static int calcMaxWidth(JTable table) {
int colsNum = table.getColumnModel().getColumnCount();
int totalWidth = 0;
for (int col = 0; col < colsNum - 1; col++) {
TableColumn column = table.getColumnModel().getColumn(col);
int preferred = column.getPreferredWidth();
int width = Math.max(preferred, columnMaxWidth(table, col));
totalWidth += width;
column.setMinWidth(width);
column.setMaxWidth(width);
column.setWidth(width);
column.setPreferredWidth(width);
}
totalWidth += columnMaxWidth(table, colsNum - 1);
return totalWidth;
}
@NotNull
private static MyModel setTableModel(
@NotNull JTable table,
@NotNull UsageViewImpl usageView,
@NotNull final List<UsageNode> data) {
ApplicationManager.getApplication().assertIsDispatchThread();
final int columnCount = calcColumnCount(data);
MyModel model = table.getModel() instanceof MyModel ? (MyModel) table.getModel() : null;
if (model == null || model.getColumnCount() != columnCount) {
model = new MyModel(data, columnCount);
table.setModel(model);
ShowUsagesTableCellRenderer renderer = new ShowUsagesTableCellRenderer(usageView);
for (int i = 0; i < table.getColumnModel().getColumnCount(); i++) {
TableColumn column = table.getColumnModel().getColumn(i);
column.setCellRenderer(renderer);
}
}
return model;
}
private static int columnMaxWidth(@NotNull JTable table, int col) {
TableColumn column = table.getColumnModel().getColumn(col);
int width = 0;
for (int row = 0; row < table.getRowCount(); row++) {
Component component = table.prepareRenderer(column.getCellRenderer(), row, col);
int rendererWidth = component.getPreferredSize().width;
width = Math.max(width, rendererWidth + table.getIntercellSpacing().width);
}
return width;
}
public static Image createImage(final JTable table, int column) {
final int height =
Math.max(20, Math.min(100, table.getSelectedRowCount() * table.getRowHeight()));
final int width = table.getColumnModel().getColumn(column).getWidth();
final BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
Graphics2D g2 = (Graphics2D) image.getGraphics();
g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.7f));
drawSelection(table, column, g2, width);
return image;
}
@NotNull
@Override
public RelativePoint guessBestPopupLocation(@NotNull final JComponent component) {
Point popupMenuPoint = null;
final Rectangle visibleRect = component.getVisibleRect();
if (component instanceof JList) { // JList
JList list = (JList) component;
int firstVisibleIndex = list.getFirstVisibleIndex();
int lastVisibleIndex = list.getLastVisibleIndex();
int[] selectedIndices = list.getSelectedIndices();
for (int index : selectedIndices) {
if (firstVisibleIndex <= index && index <= lastVisibleIndex) {
Rectangle cellBounds = list.getCellBounds(index, index);
popupMenuPoint =
new Point(visibleRect.x + visibleRect.width / 4, cellBounds.y + cellBounds.height);
break;
}
}
} else if (component instanceof JTree) { // JTree
JTree tree = (JTree) component;
int[] selectionRows = tree.getSelectionRows();
if (selectionRows != null) {
Arrays.sort(selectionRows);
for (int i = 0; i < selectionRows.length; i++) {
int row = selectionRows[i];
Rectangle rowBounds = tree.getRowBounds(row);
if (visibleRect.contains(rowBounds)) {
popupMenuPoint = new Point(rowBounds.x + 2, rowBounds.y + rowBounds.height - 1);
break;
}
}
if (popupMenuPoint == null) { // All selected rows are out of visible rect
Point visibleCenter =
new Point(
visibleRect.x + visibleRect.width / 2, visibleRect.y + visibleRect.height / 2);
double minDistance = Double.POSITIVE_INFINITY;
int bestRow = -1;
Point rowCenter;
double distance;
for (int i = 0; i < selectionRows.length; i++) {
int row = selectionRows[i];
Rectangle rowBounds = tree.getRowBounds(row);
rowCenter =
new Point(rowBounds.x + rowBounds.width / 2, rowBounds.y + rowBounds.height / 2);
distance = visibleCenter.distance(rowCenter);
if (minDistance > distance) {
minDistance = distance;
bestRow = row;
}
}
if (bestRow != -1) {
Rectangle rowBounds = tree.getRowBounds(bestRow);
tree.scrollRectToVisible(
new Rectangle(
rowBounds.x,
rowBounds.y,
Math.min(visibleRect.width, rowBounds.width),
rowBounds.height));
popupMenuPoint = new Point(rowBounds.x + 2, rowBounds.y + rowBounds.height - 1);
}
}
}
} else if (component instanceof JTable) {
JTable table = (JTable) component;
int column = table.getColumnModel().getSelectionModel().getLeadSelectionIndex();
int row =
Math.max(
table.getSelectionModel().getLeadSelectionIndex(),
table.getSelectionModel().getAnchorSelectionIndex());
Rectangle rect = table.getCellRect(row, column, false);
if (!visibleRect.intersects(rect)) {
table.scrollRectToVisible(rect);
}
popupMenuPoint = new Point(rect.x, rect.y + rect.height);
} else if (component instanceof PopupOwner) {
popupMenuPoint = ((PopupOwner) component).getBestPopupPosition();
}
if (popupMenuPoint == null) {
popupMenuPoint =
new Point(visibleRect.x + visibleRect.width / 2, visibleRect.y + visibleRect.height / 2);
}
return new RelativePoint(component, popupMenuPoint);
}