Camera App ubports#79 : Initial try

Author: EranUzan

CMakeLists.txt

@@ -15,6 +15,9 @@ find_package(Qt5Qml)
 find_package(Qt5Quick)
 find_package(Qt5Multimedia)
 find_package(Qt5Gui)
+find_package(PkgConfig REQUIRED)
+
+pkg_check_modules(EXIV2 REQUIRED exiv2)
 
 find_program(INTLTOOL_MERGE intltool-merge)
 find_program(INTLTOOL_EXTRACT intltool-extract)
@@ -121,7 +124,7 @@ install(TARGETS ${CAMERA_APP}
     RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
     )
 
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC -std=c++11 -Wall -Werror")
 
 file(GLOB QML_JS_FILES *.qml *.js *.png)
 

CameraApp/adddatestamp.cpp

@@ -1,3 +1,5 @@
+#include <exiv2/exiv2.hpp>
+
 #include <QtCore/QFile>
 #include <QImage>
 #include <QPainter>
@@ -16,6 +18,10 @@ AddDateStamp::AddDateStamp(QString inPath, QString dateFormat, QColor  stampColo
 
 void AddDateStamp::run() {
   try {
+      const char* exifPath = path.toUtf8().toStdString().c_str();
+      Exiv2::Image::AutoPtr oldExifImage = Exiv2::ImageFactory::open(exifPath);
+      oldExifImage->readMetadata();
+      Exiv2::ExifData &exifData = oldExifImage->exifData();
 
       QImage image = QImage(path);
       QDateTime now = QDateTime::currentDateTime();
@@ -42,6 +48,10 @@ void AddDateStamp::run() {
       success &= QFile::rename(tmpPath, path);
       if(success) {
           QFile::remove(backupFilePath);
+          Exiv2::Image::AutoPtr newExifImage = Exiv2::ImageFactory::open(exifPath);
+          newExifImage->setExifData(exifData);
+          newExifImage->writeMetadata();
+
       } else { //try and move the backup file back to it original name
           QFile::rename(backupFilePath, path);
       }

CameraApp/adddatestamp.h

@@ -5,8 +5,8 @@
 
 class AddDateStamp : public QThread
 {
-    static const float MAXIMUM_TEXT_HEIGHT_PECENT_OF_IMAGE = 0.04f;
-    static const float MINIMUM_TEXT_HEIGHT_PECENT_OF_IMAGE = 0.02f;
+    static constexpr float MAXIMUM_TEXT_HEIGHT_PECENT_OF_IMAGE = 0.04f;
+    static constexpr float MINIMUM_TEXT_HEIGHT_PECENT_OF_IMAGE = 0.02f;
 
 public:
     AddDateStamp(QString inPath, QString dateFormat, QColor  stampColor, float   opacity, int alignment);