Architecture Playground

Playground for some (C++) software architecture ideas. More detailed documentation will be added in the future.

Dependencies

• QT5 (https://www.qt.io/)
• Google Test (https://github.com/google/googletest); will be installed by CMake

Build

Build with CMake:

mkdir build
cd build
cmake .. -DQt5_DIR=C:/my_qt_5_install/msvc2017_64/lib/cmake/Qt5 
cmake --build .
ctest

Domains

Core & Utility

The core allows new functions to be registered and provides access to those functions. Extending the core means that new types of functions can be handled.

Features

New functions can be implemented and made available by registering them in the core. For example, adding a new image operation means implementing such a function in a function library:

auto grey(image::Image* img)
{
    img->fill({0.5f, 0.5f, 0.5f});

    return core::SUCCESS;
}

REGISTER_COMMAND(grey, "cmd.fill.grey", "Grey");

Product Design

Products are designed by composing features. Basic product settings (name, version, file name) are defined with CMake:

add_executable(app_product_new)
make_generic_app("The New Product" ${PRODUCT_VERSION} "product_new" config_product_new.cpp app_product_new)
use_qt_ui(app_product_new)
target_link_libraries(app_product_new PRIVATE lib_cmd_colors)
target_link_libraries(app_product_new PRIVATE lib_cmd_filters)
target_link_libraries(app_product_new PRIVATE lib_cmd_random)
target_link_libraries(app_product_new PRIVATE lib_cmd_pattern)
target_link_libraries(app_product_new PRIVATE lib_exports)

If a certain feature library is not linked to the product, the corresponding features are not available. E.g. a demo version is simply created by using the same settings as the default version minus linking exporter features.

The UI settings of a product are defined by implementing a create_config() function, found in the referenced source code file (e.g. config_product_new.cpp). The menus are filled using the IDs used to define certain features.

#include "config.h"
#include "config_standard.h"

namespace core
{
void create_config(Config& c)
{
    fill_app_menu(c);

    generic_menu_element menu;
    menu.name = "Menu";
    add_to_menu(CommandID{"cmd.fill.grey"}, "Fill Grey", menu);
    c.generic_menus.push_back(menu);

    c.width  = 512;
    c.height = 512;
}
}

UI

The UI for all UI-based products is implemented as a separate library. The UI elements are created based on the configuration defined in above create_config() function.