private boolean expandOrCollapseRoots(@NotNull MouseEvent e) {
TableColumn column = getRootColumnOrNull(e);
if (column != null) {
myUI.setShowRootNames(!myUI.isShowRootNames());
return true;
}
return false;
}
private void setRootColumnSize(TableColumn column) {
int rootWidth;
if (!myUI.isMultipleRoots()) {
rootWidth = 0;
} else if (!myUI.isShowRootNames()) {
rootWidth = ROOT_INDICATOR_WIDTH;
} else {
rootWidth = Math.min(calculateMaxRootWidth(), ROOT_NAME_MAX_WIDTH);
}
// NB: all further instructions and their order are important, otherwise the minimum size which
// is less than 15 won't be applied
column.setMinWidth(rootWidth);
column.setMaxWidth(rootWidth);
column.setPreferredWidth(rootWidth);
}
@Override
public Component getTableCellRendererComponent(
JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
String text;
Color color;
if (value instanceof VirtualFile) {
VirtualFile root = (VirtualFile) value;
int readableRow =
ScrollingUtil.getReadableRow(table, Math.round(myUi.getTable().getRowHeight() * 0.5f));
if (row < readableRow) {
text = "";
} else if (row == 0
|| !value.equals(table.getModel().getValueAt(row - 1, column))
|| readableRow == row) {
text = root.getName();
} else {
text = "";
}
color = getRootBackgroundColor(root, myUi.getColorManager());
} else {
text = null;
color = UIUtil.getTableBackground(isSelected);
}
myColor = color;
Color background =
((VcsLogGraphTable) table)
.getStyle(row, column, text, hasFocus, isSelected)
.getBackground();
assert background != null;
myBorderColor = background;
setForeground(UIUtil.getTableForeground(false));
if (myUi.isShowRootNames()) {
setText(text);
isNarrow = false;
} else {
setText("");
isNarrow = true;
}
return this;
}
@Override
public String getToolTipText(@NotNull MouseEvent event) {
int row = rowAtPoint(event.getPoint());
int column = columnAtPoint(event.getPoint());
if (column < 0 || row < 0) {
return null;
}
if (column == GraphTableModel.ROOT_COLUMN) {
Object at = getValueAt(row, column);
if (at instanceof VirtualFile) {
return "<html><b>"
+ ((VirtualFile) at).getPresentableUrl()
+ "</b><br/>Click to "
+ (myUI.isShowRootNames() ? "collapse" : "expand")
+ "</html>";
}
}
return null;
}