private void setTreeInput(GradleProject project) {
if (taskSelectionTreeViewer != null) {
taskSelectionTreeViewer.setInput(project);
Tree tree = taskSelectionTreeViewer.getTree();
for (TreeColumn col : tree.getColumns()) {
col.pack();
}
}
}
/**
* **** The same version as {@link BaseScopeView.initTableColumns} but without worrying if the
* tree has been disposed or not.
*
* @param tree
* @param keepColumnStatus
*/
private void initTableColumns(Tree tree, boolean keepColumnStatus) {
final Experiment myExperiment = database.getExperiment();
final int numMetric = myExperiment.getMetricCount();
int iColCount = tree.getColumnCount();
boolean status[] = new boolean[numMetric];
if (iColCount > 1) {
TreeColumn[] columns = tree.getColumns();
// this is Eclipse Indigo bug: when a column is disposed, the next column will have
// zero as its width. Somehow they didn't preserve the width of the columns.
// Hence, we have to retrieve the information of column width before the dispose action
for (int i = 1; i < iColCount; i++) {
// bug fix: for callers view activation, we have to reserve the current status
if (keepColumnStatus && i - 1 < status.length) {
int width = columns[i].getWidth();
status[i - 1] = (width > 0);
}
}
// remove the metric columns blindly
// TODO we need to have a more elegant solution here
for (int i = 1; i < iColCount; i++) {
TreeColumn column = columns[i]; // treeViewer.getTree().getColumn(1);
column.dispose();
}
}
// prepare the data for the sorter class for tree
sorterTreeColumn.setMetric(myExperiment.getMetric(0));
// dirty solution to update titles
TreeViewerColumn[] colMetrics = new TreeViewerColumn[numMetric];
{
// Update metric title labels
String[] titles = new String[numMetric + 1];
titles[0] = "Scope"; // unused element. Already defined
// add table column for each metric
for (int i = 0; i < numMetric; i++) {
final BaseMetric metric = myExperiment.getMetric(i);
if (metric != null) {
titles[i + 1] = metric.getDisplayName(); // get the title
colMetrics[i] = this.treeViewer.addTreeColumn(metric, (i == 0));
// bug fix: for view initialization, we need to reset the status of hide/view
if (!keepColumnStatus) {
status[i] = metric.getDisplayed();
}
}
}
treeViewer.setColumnProperties(titles); // do we need this ??
}
// update the root scope of the actions !
this.objViewActions.updateContent(myExperiment, this.myRootScope);
this.objViewActions.objActionsGUI.setColumnsStatus(status);
}
public static void packColumns(@NotNull Tree tree, boolean fit, @Nullable float[] ratios) {
tree.setRedraw(false);
try {
// Check for disposed items
// TODO: it looks like SWT error. Sometimes tree items are disposed and NPE is thrown from
// column.pack
for (TreeItem item : tree.getItems()) {
if (item.isDisposed()) {
return;
}
}
int totalWidth = 0;
final TreeColumn[] columns = tree.getColumns();
for (TreeColumn column : columns) {
column.pack();
totalWidth += column.getWidth();
}
Rectangle clientArea = tree.getClientArea();
if (clientArea.isEmpty()) {
return;
}
if (fit) {
int areaWidth = clientArea.width;
if (tree.getVerticalBar() != null) {
areaWidth -= tree.getVerticalBar().getSize().x;
}
if (totalWidth > areaWidth) {
int extraSpace = totalWidth - areaWidth;
for (TreeColumn tc : columns) {
double ratio = (double) tc.getWidth() / totalWidth;
tc.setWidth((int) (tc.getWidth() - extraSpace * ratio));
}
} else if (totalWidth < areaWidth) {
float extraSpace = areaWidth - totalWidth;
if (columns.length > 0) {
if (ratios == null || ratios.length < columns.length) {
extraSpace /= columns.length;
extraSpace--;
for (TreeColumn tc : columns) {
tc.setWidth((int) (tc.getWidth() + extraSpace));
}
} else {
for (int i = 0; i < columns.length; i++) {
TreeColumn tc = columns[i];
tc.setWidth((int) (tc.getWidth() + extraSpace * ratios[i]));
}
}
}
}
}
} finally {
tree.setRedraw(true);
}
}