Add AppleWin version number in the About dialog box.

Signed-off-by: Andrea Odetti <mariofutire@gmail.com>

source/CMakeLists.txt

@@ -1,3 +1,8 @@
+add_custom_command(OUTPUT linux/version.hpp
+  COMMAND grep FILEVERSION ${CMAKE_CURRENT_SOURCE_DIR}/../resource/Applewin.rc | sed 's/FILEVERSION/\#define FILEVERSION/' > linux/version.hpp
+  DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/../resource/Applewin.rc
+)
+
 add_library(appleii SHARED
   SaveState.cpp
   Pravets.cpp
@@ -24,6 +29,8 @@ add_library(appleii SHARED
   linux/state.cpp
   linux/benchmark.cpp
   linux/paddle.cpp
+  linux/version.cpp
+  linux/version.hpp
 
   Z80VICE/z80.cpp
   Z80VICE/z80mem.cpp

source/frontends/qapple/qapple.cpp

@@ -16,6 +16,7 @@
 
 #include "linux/data.h"
 #include "linux/benchmark.h"
+#include "linux/version.h"
 
 #include "emulator.h"
 #include "memorycontainer.h"
@@ -305,7 +306,9 @@ void QApple::on_actionAbout_Qt_triggered()
 
 void QApple::on_actionAbout_triggered()
 {
-    QMessageBox::about(this, QApplication::applicationName(), "Apple ][ emulator\n\nBased on AppleWin\n");
+    QString qversion = QString::fromStdString(getVersion());
+    QString message = QString("Apple ][ emulator\n\nBased on AppleWin %1\n").arg(qversion);
+    QMessageBox::about(this, QApplication::applicationName(), message);
 }
 
 QString getImageFilename()

source/linux/version.cpp

@@ -0,0 +1,10 @@
+#include "linux/version.h"
+#include "linux/version.hpp"
+
+#define xstr(a) str(a)
+#define str(a, b, c, d) #a"."#b"."#c"."#d
+
+std::string getVersion()
+{
+  return xstr(FILEVERSION);
+}

source/linux/version.h

@@ -0,0 +1,3 @@
+#include <string>
+
+std::string getVersion();