If an information entry will be added to KFileItemDelegate (like done recently), adjusting the corresponding code in Dolphin is a real pain, as the new information will be shown in Dolphin the following way:

 - As additional columns in the details view
 - As additional lines in the icons view
 - As menu entries in the "Sort By" and "Additional Information" groups
 - As popup menu entries in the details view header popup
 - As checkable entries in the View Properties dialog

To prevent similar painful transitions in future, the class AdditionalInfoManager has been introduced. All parts in Dolphin that access/show/store additional information, use the AdditionalInfoManager now. If a new information entry will be added in KFileItemDelegate in future, only a small adjustment in AdditionalInfoManager will be required.

Still open currently:
- AdditionalInfoDialog does not use AdditionalInfoManager yet
- DolphinView::Sorting should be replaced by KFileItemDelegate::Information, so that the sorting can also be done in a generic way.
- The data for KFileItemDelegate::PathOrUrl is not determined

The open issues will get fixed during the next days.

Kudos to the brave warriors Sebastian and Frank, that tried to add a new information ;-)

CCMAIL: [email protected]
CCMAIL: [email protected]

svn path=/trunk/KDE/kdebase/apps/; revision=1126410

1 files changed, 107 insertions, 0 deletions

diff --git a/src/additionalinfomanager.cpp b/src/additionalinfomanager.cpp
new file mode 100644
index 000000000..e27bcd262
--- /dev/null
+++ b/src/additionalinfomanager.cpp
@@ -0,0 +1,107 @@
+/***************************************************************************
+ *   Copyright (C) 2010 by Peter Penz <[email protected]>             *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
+ ***************************************************************************/
+
+#include "additionalinfomanager.h"
+
+#include "dolphinmodel.h"
+#include <kglobal.h>
+#include <klocale.h>
+
+class AdditionalInfoManagerSingleton
+{
+public:
+    AdditionalInfoManager instance;
+};
+K_GLOBAL_STATIC(AdditionalInfoManagerSingleton, s_additionalInfoManager)
+
+AdditionalInfoManager& AdditionalInfoManager::instance()
+{
+    return s_additionalInfoManager->instance;
+}
+
+KFileItemDelegate::InformationList AdditionalInfoManager::keys() const
+{
+    return m_informations;
+}
+
+KFileItemDelegate::Information AdditionalInfoManager::keyForColumn(int columnIndex) const
+{
+    KFileItemDelegate::Information info = KFileItemDelegate::NoInformation;
+
+    switch (columnIndex) {
+    case DolphinModel::Size:           info = KFileItemDelegate::Size; break;
+    case DolphinModel::ModifiedTime:   info = KFileItemDelegate::ModificationTime; break;
+    case DolphinModel::Permissions:    info = KFileItemDelegate::Permissions; break;
+    case DolphinModel::Owner:          info = KFileItemDelegate::Owner; break;
+    case DolphinModel::Group:          info = KFileItemDelegate::OwnerAndGroup; break;
+    case DolphinModel::Type:           info = KFileItemDelegate::FriendlyMimeType; break;
+    case DolphinModel::LinkDest:       info = KFileItemDelegate::LinkDest; break;
+    case DolphinModel::LocalPathOrUrl: info = KFileItemDelegate::LocalPathOrUrl; break;
+    default: break;
+    }
+
+    return info;
+}
+
+QString AdditionalInfoManager::actionCollectionName(KFileItemDelegate::Information info) const
+{
+    return QLatin1String(m_map[info]->actionCollectionName);
+}
+
+QString AdditionalInfoManager::translation(KFileItemDelegate::Information info) const
+{
+    return i18n(m_map[info]->translation);
+}
+
+int AdditionalInfoManager::bitValue(KFileItemDelegate::Information info) const
+{
+    return m_map[info]->bitValue;
+}
+
+AdditionalInfoManager::AdditionalInfoManager() :
+    m_informations(),
+    m_map()
+{
+    static const AdditionalInfoManager::AdditionalInfo additionalInfos[] = {
+        { "size",        I18N_NOOP2("@label", "Size"),          1 },
+        { "date",        I18N_NOOP2("@label", "Date"),          2 },
+        { "permissions", I18N_NOOP2("@label", "Permissions"),   4 },
+        { "owner",       I18N_NOOP2("@label", "Owner"),         8 },
+        { "group",       I18N_NOOP2("@label", "Group"),        16 },
+        { "type",        I18N_NOOP2("@label", "Type"),         32 },
+        { "destination", I18N_NOOP2("@label", "Destination"),  64 },
+        { "path",        I18N_NOOP2("@label", "Path"),        128 }
+    };
+
+    m_map.insert(KFileItemDelegate::Size, &additionalInfos[0]);
+    m_map.insert(KFileItemDelegate::ModificationTime, &additionalInfos[1]);
+    m_map.insert(KFileItemDelegate::Permissions, &additionalInfos[2]);
+    m_map.insert(KFileItemDelegate::Owner, &additionalInfos[3]);
+    m_map.insert(KFileItemDelegate::OwnerAndGroup, &additionalInfos[4]);
+    m_map.insert(KFileItemDelegate::FriendlyMimeType, &additionalInfos[5]);
+    m_map.insert(KFileItemDelegate::LinkDest, &additionalInfos[6]);
+    m_map.insert(KFileItemDelegate::LocalPathOrUrl, &additionalInfos[7]);
+
+    m_informations = m_map.keys();
+}
+
+AdditionalInfoManager::~AdditionalInfoManager()
+{
+}
+