Fixes #1172: Added basic loading/saving progress bar

The progress is not particularly accurate. It simply uses the current / total number of records written/read as indication. Cell records are currently the largest by far, but there is a good chance that could be optimized using a change tracking system.

apps/openmw/mwbase/dialoguemanager.hpp

@@ -5,6 +5,11 @@
 
 #include <stdint.h>
 
+namespace Loading
+{
+    class Listener;
+}
+
 namespace ESM
 {
     class ESMReader;
@@ -60,7 +65,7 @@ namespace MWBase
 
             virtual int countSavedGameRecords() const = 0;
 
-            virtual void write (ESM::ESMWriter& writer) const = 0;
+            virtual void write (ESM::ESMWriter& writer, Loading::Listener& progress) const = 0;
 
             virtual void readRecord (ESM::ESMReader& reader, int32_t type) = 0;
     };

apps/openmw/mwbase/journal.hpp

@@ -11,6 +11,11 @@
 #include "../mwdialogue/topic.hpp"
 #include "../mwdialogue/quest.hpp"
 
+namespace Loading
+{
+    class Listener;
+}
+
 namespace ESM
 {
     class ESMReader;
@@ -80,7 +85,7 @@ namespace MWBase
 
             virtual int countSavedGameRecords() const = 0;
 
-            virtual void write (ESM::ESMWriter& writer) const = 0;
+            virtual void write (ESM::ESMWriter& writer, Loading::Listener& progress) const = 0;
 
             virtual void readRecord (ESM::ESMReader& reader, int32_t type) = 0;
     };

apps/openmw/mwbase/windowmanager.hpp

@@ -303,7 +303,7 @@ namespace MWBase
             /// Clear all savegame-specific data
             virtual void clear() = 0;
 
-            virtual void write (ESM::ESMWriter& writer) = 0;
+            virtual void write (ESM::ESMWriter& writer, Loading::Listener& progress) = 0;
             virtual void readRecord (ESM::ESMReader& reader, int32_t type) = 0;
     };
 }

apps/openmw/mwbase/world.hpp

@@ -108,7 +108,7 @@ namespace MWBase
 
             virtual int countSavedGameRecords() const = 0;
 
-            virtual void write (ESM::ESMWriter& writer) const = 0;
+            virtual void write (ESM::ESMWriter& writer, Loading::Listener& listener) const = 0;
 
             virtual void readRecord (ESM::ESMReader& reader, int32_t type,
                 const std::map<int, int>& contentFileMap) = 0;

apps/openmw/mwdialogue/dialoguemanagerimp.cpp

@@ -609,7 +609,7 @@ namespace MWDialogue
         return 1; // known topics
     }
 
-    void DialogueManager::write (ESM::ESMWriter& writer) const
+    void DialogueManager::write (ESM::ESMWriter& writer, Loading::Listener& progress) const
     {
         ESM::DialogueState state;
 
@@ -621,6 +621,7 @@ namespace MWDialogue
         writer.startRecord (ESM::REC_DIAS);
         state.save (writer);
         writer.endRecord (ESM::REC_DIAS);
+        progress.increaseProgress();
     }
 
     void DialogueManager::readRecord (ESM::ESMReader& reader, int32_t type)

apps/openmw/mwdialogue/dialoguemanagerimp.hpp

@@ -83,7 +83,7 @@ namespace MWDialogue
 
             virtual int countSavedGameRecords() const;
 
-            virtual void write (ESM::ESMWriter& writer) const;
+            virtual void write (ESM::ESMWriter& writer, Loading::Listener& progress) const;
 
             virtual void readRecord (ESM::ESMReader& reader, int32_t type);
     };

apps/openmw/mwdialogue/journalimp.cpp

@@ -167,7 +167,7 @@ namespace MWDialogue
         return count;
     }
 
-    void Journal::write (ESM::ESMWriter& writer) const
+    void Journal::write (ESM::ESMWriter& writer, Loading::Listener& progress) const
     {
         for (TQuestIter iter (mQuests.begin()); iter!=mQuests.end(); ++iter)
         {
@@ -178,6 +178,7 @@ namespace MWDialogue
             writer.startRecord (ESM::REC_QUES);
             state.save (writer);
             writer.endRecord (ESM::REC_QUES);
+            progress.increaseProgress();
 
             for (Topic::TEntryIter iter (quest.begin()); iter!=quest.end(); ++iter)
             {
@@ -188,6 +189,7 @@ namespace MWDialogue
                 writer.startRecord (ESM::REC_JOUR);
                 entry.save (writer);
                 writer.endRecord (ESM::REC_JOUR);
+                progress.increaseProgress();
             }
         }
 
@@ -199,6 +201,7 @@ namespace MWDialogue
             writer.startRecord (ESM::REC_JOUR);
             entry.save (writer);
             writer.endRecord (ESM::REC_JOUR);
+            progress.increaseProgress();
         }
 
         for (TTopicIter iter (mTopics.begin()); iter!=mTopics.end(); ++iter)
@@ -214,6 +217,7 @@ namespace MWDialogue
                 writer.startRecord (ESM::REC_JOUR);
                 entry.save (writer);
                 writer.endRecord (ESM::REC_JOUR);
+                progress.increaseProgress();
             }
         }
     }

apps/openmw/mwdialogue/journalimp.hpp

@@ -64,7 +64,7 @@ namespace MWDialogue
 
             virtual int countSavedGameRecords() const;
 
-            virtual void write (ESM::ESMWriter& writer) const;
+            virtual void write (ESM::ESMWriter& writer, Loading::Listener& progress) const;
 
             virtual void readRecord (ESM::ESMReader& reader, int32_t type);
     };

apps/openmw/mwgui/loadingscreen.hpp

@@ -25,7 +25,7 @@ namespace MWGui
 
         virtual void setProgressRange (size_t range);
         virtual void setProgress (size_t value);
-        virtual void increaseProgress (size_t increase);
+        virtual void increaseProgress (size_t increase=1);
 
         virtual void setVisible(bool visible);
 

apps/openmw/mwgui/mapwindow.cpp

@@ -595,7 +595,7 @@ namespace MWGui
             MyGUI::Gui::getInstance().destroyWidget(mGlobalMapOverlay->getChildAt(0));
     }
 
-    void MapWindow::write(ESM::ESMWriter &writer)
+    void MapWindow::write(ESM::ESMWriter &writer, Loading::Listener& progress)
     {
         ESM::GlobalMap map;
         mGlobalMapRender->write(map);
@@ -605,6 +605,7 @@ namespace MWGui
         writer.startRecord(ESM::REC_GMAP);
         map.save(writer);
         writer.endRecord(ESM::REC_GMAP);
+        progress.increaseProgress();
     }
 
     void MapWindow::readRecord(ESM::ESMReader &reader, int32_t type)

apps/openmw/mwgui/mapwindow.hpp

@@ -108,7 +108,7 @@ namespace MWGui
         /// Clear all savegame-specific data
         void clear();
 
-        void write (ESM::ESMWriter& writer);
+        void write (ESM::ESMWriter& writer, Loading::Listener& progress);
         void readRecord (ESM::ESMReader& reader, int32_t type);
 
     private:

apps/openmw/mwgui/windowmanagerimp.cpp

@@ -1407,9 +1407,9 @@ namespace MWGui
         mMap->clear();
     }
 
-    void WindowManager::write(ESM::ESMWriter &writer)
+    void WindowManager::write(ESM::ESMWriter &writer, Loading::Listener& progress)
     {
-        mMap->write(writer);
+        mMap->write(writer, progress);
     }
 
     void WindowManager::readRecord(ESM::ESMReader &reader, int32_t type)

apps/openmw/mwgui/windowmanagerimp.hpp

@@ -291,7 +291,7 @@ namespace MWGui
     /// Clear all savegame-specific data
     virtual void clear();
 
-    virtual void write (ESM::ESMWriter& writer);
+    virtual void write (ESM::ESMWriter& writer, Loading::Listener& progress);
     virtual void readRecord (ESM::ESMReader& reader, int32_t type);
 
   private:

apps/openmw/mwscript/globalscripts.cpp

@@ -97,7 +97,7 @@ namespace MWScript
         return mScripts.size();
     }
 
-    void GlobalScripts::write (ESM::ESMWriter& writer) const
+    void GlobalScripts::write (ESM::ESMWriter& writer, Loading::Listener& progress) const
     {
         for (std::map<std::string, std::pair<bool, Locals> >::const_iterator iter (mScripts.begin());
             iter!=mScripts.end(); ++iter)
@@ -113,6 +113,7 @@ namespace MWScript
             writer.startRecord (ESM::REC_GSCR);
             script.save (writer);
             writer.endRecord (ESM::REC_GSCR);
+            progress.increaseProgress();
         }
     }
 

apps/openmw/mwscript/globalscripts.hpp

@@ -14,6 +14,11 @@ namespace ESM
     class ESMReader;
 }
 
+namespace Loading
+{
+    class Listener;
+}
+
 namespace MWWorld
 {
     struct ESMStore;
@@ -46,7 +51,7 @@ namespace MWScript
 
             int countSavedGameRecords() const;
 
-            void write (ESM::ESMWriter& writer) const;
+            void write (ESM::ESMWriter& writer, Loading::Listener& progress) const;
 
             bool readRecord (ESM::ESMReader& reader, int32_t type);
             ///< Records for variables that do not exist are dropped silently.

apps/openmw/mwstate/statemanagerimp.cpp

@@ -196,26 +196,35 @@ void MWState::StateManager::saveGame (const std::string& description, const Slot
         writer.addMaster (*iter, 0); // not using the size information anyway -> use value of 0
 
     writer.setFormat (ESM::Header::CurrentFormat);
-    writer.setRecordCount (
-        1 // saved game header
-        +MWBase::Environment::get().getJournal()->countSavedGameRecords()
-        +MWBase::Environment::get().getWorld()->countSavedGameRecords()
-        +MWBase::Environment::get().getScriptManager()->getGlobalScripts().countSavedGameRecords()
-        +MWBase::Environment::get().getDialogueManager()->countSavedGameRecords()
-        +1 // global map
-        );
+    int recordCount =         1 // saved game header
+            +MWBase::Environment::get().getJournal()->countSavedGameRecords()
+            +MWBase::Environment::get().getWorld()->countSavedGameRecords()
+            +MWBase::Environment::get().getScriptManager()->getGlobalScripts().countSavedGameRecords()
+            +MWBase::Environment::get().getDialogueManager()->countSavedGameRecords()
+           +1; // global map
+    writer.setRecordCount (recordCount);
 
     writer.save (stream);
 
+    Loading::Listener& listener = *MWBase::Environment::get().getWindowManager()->getLoadingScreen();
+    listener.setProgressRange(recordCount);
+    listener.setLabel("#{sNotifyMessage4}");
+
+    Loading::ScopedLoad load(&listener);
+
     writer.startRecord (ESM::REC_SAVE);
     slot->mProfile.save (writer);
     writer.endRecord (ESM::REC_SAVE);
+    listener.increaseProgress();
+
+    MWBase::Environment::get().getJournal()->write (writer, listener);
+    MWBase::Environment::get().getDialogueManager()->write (writer, listener);
+    MWBase::Environment::get().getWorld()->write (writer, listener);
+    MWBase::Environment::get().getScriptManager()->getGlobalScripts().write (writer, listener);
+    MWBase::Environment::get().getWindowManager()->write(writer, listener);
 
-    MWBase::Environment::get().getJournal()->write (writer);
-    MWBase::Environment::get().getDialogueManager()->write (writer);
-    MWBase::Environment::get().getWorld()->write (writer);
-    MWBase::Environment::get().getScriptManager()->getGlobalScripts().write (writer);
-    MWBase::Environment::get().getWindowManager()->write(writer);
+    // Ensure we have written the number of records that was estimated
+    assert (writer.getRecordCount() == recordCount+1); // 1 extra for TES3 record
 
     writer.close();
 
@@ -261,6 +270,15 @@ void MWState::StateManager::loadGame (const Character *character, const Slot *sl
 
         std::map<int, int> contentFileMap = buildContentFileIndexMap (reader);
 
+        Loading::Listener& listener = *MWBase::Environment::get().getWindowManager()->getLoadingScreen();
+
+        // FIXME: +1 is actually not needed, but older savegames had an off-by-one error with the record count
+        // So we leave this in for now so that these old savegames still work
+        listener.setProgressRange(reader.getRecordCount()+1);
+        listener.setLabel("#{sLoadingMessage14}");
+
+        Loading::ScopedLoad load(&listener);
+
         while (reader.hasMoreRecs())
         {
             ESM::NAME n = reader.getRecName();
@@ -318,6 +336,7 @@ void MWState::StateManager::loadGame (const Character *character, const Slot *sl
                     /// \todo log error
                     reader.skipRecord();
             }
+            listener.increaseProgress();
         }
 
         mCharacterManager.setCurrentCharacter(character);

apps/openmw/mwworld/cells.cpp

@@ -277,17 +277,23 @@ int MWWorld::Cells::countSavedGameRecords() const
     return count;
 }
 
-void MWWorld::Cells::write (ESM::ESMWriter& writer) const
+void MWWorld::Cells::write (ESM::ESMWriter& writer, Loading::Listener& progress) const
 {
     for (std::map<std::pair<int, int>, CellStore>::iterator iter (mExteriors.begin());
         iter!=mExteriors.end(); ++iter)
         if (iter->second.hasState())
+        {
             writeCell (writer, iter->second);
+            progress.increaseProgress(); // Assumes that each cell writes one record
+        }
 
     for (std::map<std::string, CellStore>::iterator iter (mInteriors.begin());
         iter!=mInteriors.end(); ++iter)
         if (iter->second.hasState())
+        {
             writeCell (writer, iter->second);
+            progress.increaseProgress(); // Assumes that each cell writes one record
+        }
 }
 
 bool MWWorld::Cells::readRecord (ESM::ESMReader& reader, int32_t type,

apps/openmw/mwworld/cells.hpp

@@ -15,6 +15,11 @@ namespace ESM
     struct Cell;
 }
 
+namespace Loading
+{
+    class Listener;
+}
+
 namespace MWWorld
 {
     class ESMStore;
@@ -69,7 +74,7 @@ namespace MWWorld
 
             int countSavedGameRecords() const;
 
-            void write (ESM::ESMWriter& writer) const;
+            void write (ESM::ESMWriter& writer, Loading::Listener& progress) const;
 
             bool readRecord (ESM::ESMReader& reader, int32_t type,
                 const std::map<int, int>& contentFileMap);

apps/openmw/mwworld/esmstore.cpp

@@ -153,17 +153,17 @@ void ESMStore::setUp()
             +mWeapons.getDynamicSize();
     }
 
-    void ESMStore::write (ESM::ESMWriter& writer) const
+    void ESMStore::write (ESM::ESMWriter& writer, Loading::Listener& progress) const
     {
-        mPotions.write (writer);
-        mArmors.write (writer);
-        mBooks.write (writer);
-        mClasses.write (writer);
-        mClothes.write (writer);
-        mEnchants.write (writer);
-        mSpells.write (writer);
-        mWeapons.write (writer);
-        mNpcs.write (writer);
+        mPotions.write (writer, progress);
+        mArmors.write (writer, progress);
+        mBooks.write (writer, progress);
+        mClasses.write (writer, progress);
+        mClothes.write (writer, progress);
+        mEnchants.write (writer, progress);
+        mSpells.write (writer, progress);
+        mWeapons.write (writer, progress);
+        mNpcs.write (writer, progress);
     }
 
     bool ESMStore::readRecord (ESM::ESMReader& reader, int32_t type)

apps/openmw/mwworld/esmstore.hpp

@@ -212,7 +212,7 @@ namespace MWWorld
 
         int countSavedGameRecords() const;
 
-        void write (ESM::ESMWriter& writer) const;
+        void write (ESM::ESMWriter& writer, Loading::Listener& progress) const;
 
         bool readRecord (ESM::ESMReader& reader, int32_t type);
         ///< \return Known type?

apps/openmw/mwworld/globals.cpp

@@ -77,7 +77,7 @@ namespace MWWorld
         return mVariables.size();
     }
 
-    void Globals::write (ESM::ESMWriter& writer) const
+    void Globals::write (ESM::ESMWriter& writer, Loading::Listener& progress) const
     {
         for (Collection::const_iterator iter (mVariables.begin()); iter!=mVariables.end(); ++iter)
         {
@@ -85,6 +85,7 @@ namespace MWWorld
             writer.writeHNString ("NAME", iter->first);
             iter->second.write (writer, ESM::Variant::Format_Global);
             writer.endRecord (ESM::REC_GLOB);
+            progress.increaseProgress();
         }
     }
 

apps/openmw/mwworld/globals.hpp

@@ -16,6 +16,11 @@ namespace ESM
     class ESMReader;
 }
 
+namespace Loading
+{
+    class Listener;
+}
+
 namespace MWWorld
 {
     class ESMStore;
@@ -46,7 +51,7 @@ namespace MWWorld
 
             int countSavedGameRecords() const;
 
-            void write (ESM::ESMWriter& writer) const;
+            void write (ESM::ESMWriter& writer, Loading::Listener& progress) const;
 
             bool readRecord (ESM::ESMReader& reader, int32_t type);
             ///< Records for variables that do not exist are dropped silently.

apps/openmw/mwworld/player.cpp

@@ -215,7 +215,7 @@ namespace MWWorld
         mTeleported = false;
     }
 
-    void Player::write (ESM::ESMWriter& writer) const
+    void Player::write (ESM::ESMWriter& writer, Loading::Listener& progress) const
     {
         ESM::Player player;
 
@@ -245,6 +245,8 @@ namespace MWWorld
         writer.startRecord (ESM::REC_PLAY);
         player.save (writer);
         writer.endRecord (ESM::REC_PLAY);
+
+        progress.increaseProgress();
     }
 
     bool Player::readRecord (ESM::ESMReader& reader, int32_t type)

apps/openmw/mwworld/player.hpp

@@ -21,6 +21,11 @@ namespace MWBase
     class Ptr;
 }
 
+namespace Loading
+{
+    class Listener;
+}
+
 namespace MWWorld
 {
     class CellStore;
@@ -95,7 +100,7 @@ namespace MWWorld
 
         void clear();
 
-        void write (ESM::ESMWriter& writer) const;
+        void write (ESM::ESMWriter& writer, Loading::Listener& progress) const;
 
         bool readRecord (ESM::ESMReader& reader, int32_t type);
 

apps/openmw/mwworld/store.hpp

@@ -8,6 +8,8 @@
 
 #include <components/esm/esmwriter.hpp>
 
+#include <components/loadinglistener/loadinglistener.hpp>
+
 #include "recordcmp.hpp"
 
 namespace MWWorld
@@ -313,7 +315,7 @@ namespace MWWorld
             return erase(item.mId);
         }
 
-        void write (ESM::ESMWriter& writer) const
+        void write (ESM::ESMWriter& writer, Loading::Listener& progress) const
         {
             for (typename Dynamic::const_iterator iter (mDynamic.begin()); iter!=mDynamic.end();
                  ++iter)
@@ -322,6 +324,7 @@ namespace MWWorld
                 writer.writeHNString ("NAME", iter->second.mId);
                 iter->second.save (writer);
                 writer.endRecord (T::sRecordId);
+                progress.increaseProgress();
             }
         }
 

apps/openmw/mwworld/weather.cpp

@@ -686,7 +686,7 @@ bool WeatherManager::isDark() const
     return exterior && (mHour < mSunriseTime || mHour > mNightStart - 1);
 }
 
-void WeatherManager::write(ESM::ESMWriter& writer)
+void WeatherManager::write(ESM::ESMWriter& writer, Loading::Listener& progress)
 {
     ESM::WeatherState state;
     state.mHour = mHour;
@@ -701,6 +701,7 @@ void WeatherManager::write(ESM::ESMWriter& writer)
     writer.startRecord(ESM::REC_WTHR);
     state.save(writer);
     writer.endRecord(ESM::REC_WTHR);
+    progress.increaseProgress();
 }
 
 bool WeatherManager::readRecord(ESM::ESMReader& reader, int32_t type)

apps/openmw/mwworld/weather.hpp

@@ -18,6 +18,11 @@ namespace MWRender
     class RenderingManager;
 }
 
+namespace Loading
+{
+    class Listener;
+}
+
 namespace MWWorld
 {
     class Fallback;
@@ -158,7 +163,7 @@ namespace MWWorld
         /// @see World::isDark
         bool isDark() const;
 
-        void write(ESM::ESMWriter& writer);
+        void write(ESM::ESMWriter& writer, Loading::Listener& progress);
 
         bool readRecord(ESM::ESMReader& reader, int32_t type);
 

apps/openmw/mwworld/worldimp.cpp

@@ -268,19 +268,20 @@ namespace MWWorld
     int World::countSavedGameRecords() const
     {
         return
-            mStore.countSavedGameRecords()
+            mCells.countSavedGameRecords()
+            +mStore.countSavedGameRecords()
             +mGlobalVariables.countSavedGameRecords()
             +1 // player record
-            +mCells.countSavedGameRecords();
+            +1; // weather record
     }
 
-    void World::write (ESM::ESMWriter& writer) const
+    void World::write (ESM::ESMWriter& writer, Loading::Listener& progress) const
     {
-        mStore.write (writer);
-        mGlobalVariables.write (writer);
-        mCells.write (writer);
-        mPlayer->write (writer);
-        mWeatherManager->write (writer);
+        mCells.write (writer, progress);
+        mStore.write (writer, progress);
+        mGlobalVariables.write (writer, progress);
+        mPlayer->write (writer, progress);
+        mWeatherManager->write (writer, progress);
     }
 
     void World::readRecord (ESM::ESMReader& reader, int32_t type,

apps/openmw/mwworld/worldimp.hpp

@@ -194,7 +194,7 @@ namespace MWWorld
 
             virtual int countSavedGameRecords() const;
 
-            virtual void write (ESM::ESMWriter& writer) const;
+            virtual void write (ESM::ESMWriter& writer, Loading::Listener& progress) const;
 
             virtual void readRecord (ESM::ESMReader& reader, int32_t type,
                 const std::map<int, int>& contentFileMap);

components/esm/esmreader.hpp

@@ -31,6 +31,7 @@ public:
    *************************************************************************/
 
   int getVer() const { return mHeader.mData.version; }
+  int getRecordCount() const { return mHeader.mData.records; }
   float getFVer() const { if(mHeader.mData.version == VER_12) return 1.2; else return 1.3; }
   const std::string getAuthor() const { return mHeader.mData.author.toString(); }
   const std::string getDesc() const { return mHeader.mData.desc.toString(); }

components/esm/esmwriter.hpp

@@ -29,7 +29,12 @@ class ESMWriter
         void setEncoder(ToUTF8::Utf8Encoder *encoding);
         void setAuthor(const std::string& author);
         void setDescription(const std::string& desc);
+        // Set the record count for writing it in the file header
         void setRecordCount (int count);
+        // Counts how many records we have actually written.
+        // It is a good idea to compare this with the value you wrote into the header (setRecordCount)
+        // It should be the record count you set + 1 (1 additional record for the TES3 header)
+        int getRecordCount() { return mRecordCount; }
         void setFormat (int format);
 
         void clearMaster();

components/esm/loadtes3.hpp

@@ -28,7 +28,7 @@ namespace ESM
             int type;           // 0=esp, 1=esm, 32=ess (unused)
             NAME32 author;      // Author's name
             NAME256 desc;       // File description
-            int records;        // Number of records? Not used.
+            int records;        // Number of records
         };
 
         // Defines another files (esm or esp) that this file depends upon.
@@ -52,4 +52,4 @@ namespace ESM
 
 }
 
-#endif
+#endif

components/loadinglistener/loadinglistener.hpp

@@ -17,7 +17,7 @@ namespace Loading
 
         virtual void setProgressRange (size_t range) = 0;
         virtual void setProgress (size_t value) = 0;
-        virtual void increaseProgress (size_t increase) = 0;
+        virtual void increaseProgress (size_t increase = 1) = 0;
 
         /// Indicate the scene is now ready to be shown
         virtual void removeWallpaper() = 0;