Gui: Add about image for dev version

Co-authored-by: ein-shved <yury.shvedov@kaspersky.com>
Co-authored-by: Ladislav Michl <ladis@triops.cz>
Co-authored-by: qewer33 <qewer33@proton.me>
Co-authored-by: 3x380V <i58604845+3x380V@users.noreply.github.com>

src/App/Application.cpp

@@ -1132,6 +1132,14 @@ std::string Application::getNameWithVersion()
     return fmt::format("{} {}.{}.{}{}", appname, major, minor, point, suffix);
 }
 
+bool Application::isDevelopmentVersion()
+{
+    static std::string suffix = []() constexpr {
+        return FCVersionSuffix;
+    }();
+    return suffix == "dev";
+}
+
 std::string Application::getTempPath()
 {
     return mConfig["AppTempPath"];

src/App/Application.h

@@ -422,6 +422,7 @@ public:
     static std::string getHomePath();
     static std::string getExecutableName();
     static std::string getNameWithVersion();
+    static bool isDevelopmentVersion();
     /*!
      Returns the temporary directory. By default, this is set to the
      system's temporary directory but can be customized by the user.

src/Gui/Dialogs/DlgAbout.cpp

@@ -164,7 +164,11 @@ QPixmap AboutDialog::aboutImage() const
         about_image.load(fi.filePath(), "PNG");
     }
 
-    std::string about_path = App::Application::Config()["AboutImage"];
+    // Use dev or generic version of image depending on current build version.
+    const auto& suffix = App::Application::Config()["BuildVersionSuffix"];
+    const auto about_path_key = (suffix == "dev") ? "AboutImageDev" : "AboutImage";
+    const auto& about_path = App::Application::Config()[about_path_key];
+
     if (!about_path.empty() && about_image.isNull()) {
         QString path = QString::fromStdString(about_path);
         if (QDir(path).isRelative()) {

src/Gui/Icons/resource.qrc

@@ -89,6 +89,7 @@
         <file>freecad-doc.svg</file>
         <file>freecad.svg</file>
         <file>freecadabout.png</file>
+        <file>freecadaboutdev.png</file>
         <file>freecadsplash_2x.png</file>
         <file>freecadsplash.png</file>
         <file>freecadsplash0_2x.png</file>

src/Main/MainGui.cpp

@@ -196,7 +196,8 @@ int main(int argc, char** argv)
     App::Application::Config()["CopyrightInfo"] = sBanner;
     App::Application::Config()["AppIcon"] = "freecad";
     App::Application::Config()["SplashScreen"] = "freecadsplash";
-    App::Application::Config()["AboutImage"] = "freecadabout";
+    App::Application::Config()["AboutImage"] =
+        App::Application::isDevelopmentVersion() ? "freecadaboutdev" : "freecadabout";
     App::Application::Config()["StartWorkbench"] = "PartDesignWorkbench";
     // App::Application::Config()["HiddenDockWindow"] = "Property editor";
     App::Application::Config()["SplashAlignment"] = "Bottom|Left";