/**
* This function updates the checkboxes after a change by disabling packs that cannot be installed
* anymore and enabling those that can after the change. This is accomplished by running a search
* that pinpoints the packs that must be disabled by a non-fullfiled dependency. TODO: Look into
* "+2" and "-2", doesn't look safe
*/
protected void updateDeps() {
int[] statusArray = new int[packs.size()];
for (int i = 0; i < statusArray.length; i++) {
statusArray[i] = 0;
}
dfs(statusArray);
for (int i = 0; i < statusArray.length; i++) {
if (statusArray[i] == 0 && checkValues[i] < 0) {
checkValues[i] += PARTIAL_SELECTED;
}
if (statusArray[i] == 1 && checkValues[i] >= 0) {
checkValues[i] = DEPENDENT_DESELECTED;
}
}
// The required ones must propagate their required status to all the ones that they depend on
for (Pack pack : packs) {
if (pack.isRequired()) {
String name = pack.getName();
if (!(!rules.canInstallPack(name, variables)
&& rules.canInstallPackOptional(name, variables))) {
checkValues = propRequirement(name, checkValues);
}
}
}
}
/**
* Update the conditions for dependent packages. Update the conditions for optional packages.
*
* @param initial indicates if its the first time updating conditions.
*/
private void updateConditions(boolean initial) {
boolean changes = true;
while (changes) {
changes = false;
for (Pack pack : packs) {
String packName = pack.getName();
int pos = getPos(packName);
logger.fine("Conditions fulfilled for: " + packName + "?");
if (!rules.canInstallPack(packName, variables)) {
logger.fine("no");
if (rules.canInstallPackOptional(packName, variables)) {
logger.fine("optional");
logger.fine(packName + " can be installed optionally.");
if (initial) {
if (checkValues[pos] != DESELECTED) {
checkValues[pos] = DESELECTED;
changes = true;
}
}
} else {
if (checkValues[pos] != DEPENDENT_DESELECTED) {
logger.fine("Pack" + packName + " cannot be installed");
checkValues[pos] = DEPENDENT_DESELECTED;
changes = true;
}
}
}
}
}
}
/*
* @see TableModel#setValueAt(Object, int, int)
* Update the value of some checkbox
*/
@Override
public void setValueAt(Object checkValue, int rowIndex, int columnIndex) {
if (columnIndex != 0 || !(checkValue instanceof Integer)) {
return;
} else {
Pack pack = packs.get(rowIndex);
boolean added;
if ((Integer) checkValue == SELECTED) {
added = true;
String name = pack.getName();
if (rules.canInstallPack(name, variables)
|| rules.canInstallPackOptional(name, variables)) {
if (pack.isRequired()) {
checkValues[rowIndex] = REQUIRED_SELECTED;
} else {
checkValues[rowIndex] = SELECTED;
}
}
} else {
added = false;
checkValues[rowIndex] = DESELECTED;
}
updateExcludes(rowIndex);
updateDeps();
if (added) {
onSelectionUpdate(rowIndex);
this.packsToInstall.add(pack); // Temporarily add
updateConditions();
this.packsToInstall.remove(pack); // Redo
} else {
onDeselectionUpdate(rowIndex);
this.packsToInstall.remove(pack); // Temporarily remove
updateConditions();
this.packsToInstall.add(pack); // Redo
}
updatePacksToInstall();
if (pack.hasParent()) {
updateParent(pack);
} else if (pack.hasChildren()) {
updateChildren(pack);
}
fireTableDataChanged();
}
}