debug and actual first way to display pictures in messageFeed

shared/global.cpp

@@ -81,7 +81,8 @@ Shared::Global::Global():
     }),
     pluginSupport({
         {"KWallet", false}
-    })
+    }),
+    fileCache()
 {
     if (instance != 0) {
         throw 551;
@@ -90,6 +91,34 @@ Shared::Global::Global():
     instance = this;
 }
 
+Shared::Global::FileInfo Shared::Global::getFileInfo(const QString& path)
+{
+    std::map<QString, FileInfo>::const_iterator itr = instance->fileCache.find(path);
+    if (itr == instance->fileCache.end()) {
+        QMimeDatabase db;
+        QMimeType type = db.mimeTypeForFile(path);
+        QStringList parts = type.name().split("/");
+        QString big = parts.front();
+        QFileInfo info(path);
+        
+        FileInfo::Preview p = FileInfo::Preview::none;
+        QSize size;
+        if (big == "image") {
+            if (parts.back() == "gif") {
+                //TODO need to consider GIF as a movie
+            }
+            p = FileInfo::Preview::picture;
+            QImage img(path);
+            size = img.size();
+        }
+        
+        itr = instance->fileCache.insert(std::make_pair(path, FileInfo({info.fileName(), size, type, p}))).first;
+    } 
+    
+    return itr->second;
+}
+
+
 Shared::Global * Shared::Global::getInstance()
 {
     return instance;

shared/global.h

@@ -29,6 +29,11 @@
 
 #include <QCoreApplication>
 #include <QDebug>
+#include <QMimeType>
+#include <QMimeDatabase>
+#include <QFileInfo>
+#include <QImage>
+#include <QSize>
 
 namespace Shared {
     
@@ -36,6 +41,19 @@ namespace Shared {
         Q_DECLARE_TR_FUNCTIONS(Global)
         
     public:
+        struct FileInfo {
+            enum class Preview {
+                none,
+                picture,
+                movie
+            };
+            
+            QString name;
+            QSize size;
+            QMimeType mime;
+            Preview preview;
+        };
+        
         Global();
         
         static Global* getInstance();
@@ -64,6 +82,8 @@ namespace Shared {
         
         static const std::set<QString> supportedImagesExts;
         
+        static FileInfo getFileInfo(const QString& path);
+        
         template<typename T>
         static T fromInt(int src);
         
@@ -87,6 +107,7 @@ namespace Shared {
         static Global* instance;
         
         std::map<QString, bool> pluginSupport;
+        std::map<QString, FileInfo> fileCache;
     };
 }