From daf4ae44faee3e641a743cc9f4e0c56f016faad4 Mon Sep 17 00:00:00 2001
From: Tannin <devnull@localhost>
Date: Sun, 1 Dec 2013 23:50:24 +0100
Subject: - added second context menu for changing categories that applies only
 changes to the selected mods instead of replacing the existing set of
 categories (thanks to Ross!) - bugfix: category filtering didn't work
 correctly when grouping was also active

---
 src/modlistsortproxy.cpp | 24 ++++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)

(limited to 'src/modlistsortproxy.cpp')

diff --git a/src/modlistsortproxy.cpp b/src/modlistsortproxy.cpp
index 888ecdb8..4d767230 100644
--- a/src/modlistsortproxy.cpp
+++ b/src/modlistsortproxy.cpp
@@ -220,7 +220,7 @@ bool ModListSortProxy::hasConflictFlag(const std::vector<ModInfo::EFlag> &flags)
 }
 
 
-bool ModListSortProxy::filterMatches(ModInfo::Ptr info, bool enabled) const
+bool ModListSortProxy::filterMatchesMod(ModInfo::Ptr info, bool enabled) const
 {
   if (!m_CurrentFilter.isEmpty() &&
       !info->name().contains(m_CurrentFilter, Qt::CaseInsensitive)) {
@@ -258,7 +258,7 @@ bool ModListSortProxy::filterMatches(ModInfo::Ptr info, bool enabled) const
 }
 
 
-bool ModListSortProxy::filterAcceptsRow(int row, const QModelIndex&) const
+bool ModListSortProxy::filterAcceptsRow(int row, const QModelIndex &parent) const
 {
   if (m_Profile == NULL) {
     return false;
@@ -268,9 +268,25 @@ bool ModListSortProxy::filterAcceptsRow(int row, const QModelIndex&) const
     qWarning("invalid row idx %d", row);
     return false;
   }
-  bool modEnabled = m_Profile->modEnabled(row);
 
-  return filterMatches(ModInfo::getByIndex(row), modEnabled);
+  QModelIndex idx = sourceModel()->index(row, 0, parent);
+  if (!idx.isValid()) {
+    qDebug("invalid index");
+    return false;
+  }
+  if (idx.isValid() && sourceModel()->hasChildren(idx)) {
+    for (int i = 0; i < sourceModel()->rowCount(idx); ++i) {
+      if (filterAcceptsRow(i, idx)) {
+        return true;
+      }
+    }
+
+    return false;
+  } else {
+    bool modEnabled = idx.sibling(row, 0).data(Qt::CheckStateRole).toInt() == Qt::Checked;
+    unsigned int index = idx.data(Qt::UserRole + 1).toInt();
+    return filterMatchesMod(ModInfo::getByIndex(index), modEnabled);
+  }
 }
 
 
-- 
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