add progress bar while loading in SDL2 in Android.

3 files changed, 56 insertions, 2 deletions

diff --git a/src/client.cpp b/src/client.cpp
index 461ce03c8..bcaba2a40 100644
--- a/src/client.cpp
+++ b/src/client.cpp
@@ -152,6 +152,12 @@
 #define _nacl_dir std::string("/persistent/manaplus")
 #endif
 
+#ifdef ANDROID
+#ifdef USE_SDL2
+int loadingProgressCounter = 1;
+#endif
+#endif
+
 std::string errorMessage;
 ErrorListener errorListener;
 LoginData loginData;
@@ -309,7 +315,6 @@ void Client::gameInit()
                                 "Exiting.", mLocalDataDir.c_str()));
     }
 
-    extractDataDir();
     initLang();
 
     chatLogger = new ChatLogger;
@@ -348,6 +353,8 @@ void Client::gameInit()
     SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
     SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
 
+    initGraphics();
+    extractDataDir();
     mountDataDir();
 
     if (mOptions.dataPath.empty()
@@ -373,7 +380,6 @@ void Client::gameInit()
     resman->addToSearchPath(mLocalDataDir, false);
     TranslationManager::loadCurrentLang();
 
-    initGraphics();
     initTitle();
 
     Theme::selectSkin();
@@ -580,10 +586,33 @@ void Client::initTitle()
     setIcon();
 }
 
+#ifdef ANDROID
+#ifdef USE_SDL2
+static void updateProgress(int cnt)
+{
+    const int progress = cnt + loadingProgressCounter;
+    const int h = mainGraphics->mHeight;
+    mainGraphics->setColor(gcn::Color(255, 255, 255));
+    const int maxSize = mainGraphics->mWidth - 100;
+    const int width = maxSize * progress / 450;
+    mainGraphics->fillRectangle(gcn::Rectangle(50, h - 100, width, 50));
+    mainGraphics->updateScreen();
+}
+
+static void setProgress(const int val)
+{
+    loadingProgressCounter = val;
+    updateProgress(loadingProgressCounter);
+}
+#endif
+#endif
+
 void Client::extractDataDir()
 {
 #ifdef ANDROID
 #ifdef USE_SDL2
+    Files::setCopyCallBack(&updateProgress);
+    setProgress(0);
     extractAssets();
 
     const std::string zipName = std::string(getenv(
@@ -2965,6 +2994,7 @@ void Client::extractAssets()
             logger->log("asset size: %d", size2);
             fwrite(buf, 1, size2, file);
             SDL_RWclose(rw);
+            setProgress(loadingProgressCounter + 1);
         }
         else
         {
@@ -2983,6 +3013,7 @@ void Client::extractAssets()
         int size2 = SDL_RWread(rw, buf, 1, size);
         fwrite(buf, 1, size2, file2);
         SDL_RWclose(rw);
+        setProgress(loadingProgressCounter + 1);
     }
     fclose(file2);
 
diff --git a/src/utils/files.cpp b/src/utils/files.cpp
index 6f57d3062..bfaed472a 100644
--- a/src/utils/files.cpp
+++ b/src/utils/files.cpp
@@ -63,6 +63,18 @@ void Files::extractLocale()
 #endif // ANDROID
 
 #if defined(ANDROID) || defined(__native_client__)
+
+namespace
+{
+    int mFilesCount = 0;
+    Files::CopyFileCallbackPtr mCallbackPtr = nullptr;
+}  // namespace
+
+void Files::setCopyCallBack(Files::CopyFileCallbackPtr callback)
+{
+    mCallbackPtr = callback;
+}
+
 void Files::copyPhysFsFile(const std::string &inFile,
                            const std::string &outFile)
 {
@@ -72,6 +84,13 @@ void Files::copyPhysFsFile(const std::string &inFile,
     fwrite(buf, 1, size, file);
     fclose(file);
     free(buf);
+#ifdef ANDROID
+    if (mCallbackPtr)
+    {
+        mCallbackPtr(mFilesCount);
+        mFilesCount ++;
+    }
+#endif
 }
 
 void Files::copyPhysFsDir(const std::string &inDir, const std::string &outDir)
diff --git a/src/utils/files.h b/src/utils/files.h
index 735812563..f356d7688 100644
--- a/src/utils/files.h
+++ b/src/utils/files.h
@@ -30,6 +30,10 @@ namespace Files
 #endif
 
 #if defined(ANDROID) || defined(__native_client__)
+    typedef void (*CopyFileCallbackPtr) (int cnt);
+
+    void setCopyCallBack(CopyFileCallbackPtr callback);
+
     void copyPhysFsFile(const std::string &inFile, const std::string &outFile);
 
     void copyPhysFsDir(const std::string &inDir, const std::string &outDir);