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feat: add gui sample
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-23
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+303
-23
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‎engine/samples/12_gui/CMakeLists.txt

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#////////////////////////////////////////////////////////////////////////////////////////////////////
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#// Copyright (c) 2024 RacoonStudios
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#//
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#// Permission is hereby granted, free of charge, to any person obtaining a copy of this
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#// software and associated documentation files (the "Software"), to deal in the Software
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#// without restriction, including without limitation the rights to use, copy, modify, merge,
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#// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
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#// to whom the Software is furnished to do so, subject to the following conditions:
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#//
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#// The above copyright notice and this permission notice shall be included in all copies or
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#// substantial portions of the Software.
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#//
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#// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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#// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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#// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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#// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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#// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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#// DEALINGS IN THE SOFTWARE.
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#////////////////////////////////////////////////////////////////////////////////////////////////////
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##################################################
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## Project
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##################################################
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re_add_target(
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NAME 12_gui EXECUTABLE
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NAMESPACE RE
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FILES_CMAKE
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${CMAKE_CURRENT_SOURCE_DIR}/gui_files.cmake
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PLATFORM_INCLUDE_FILES
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${CMAKE_CURRENT_SOURCE_DIR}/gui_${PAL_PLATFORM_NAME_LOWERCASE}.cmake
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INCLUDE_DIRECTORIES
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PUBLIC
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${ME_CONFIG_FILE_LOCATION}
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${CMAKE_CURRENT_SOURCE_DIR}/public
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${CMAKE_CURRENT_SOURCE_DIR}/private
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BUILD_DEPENDENCIES
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PUBLIC
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core
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gui
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RUNTIME_DEPENDENCIES
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PUBLIC
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core
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gui
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COMPILE_DEFINITIONS
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PUBLIC
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${${PAL_PLATFORM_NAME_UPPERCASE}_COMPILE_DEFS}
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${PAL_PLATFORM_NAME_UPPERCASE}
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TARGET_PROPERTIES
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-fPIC
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)

‎engine/foundation/gui/gui_linux_files.cmake renamed to ‎engine/samples/12_gui/gui_files.cmake

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#////////////////////////////////////////////////////////////////////////////////////////////////////
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#// Copyright (c) 2025 RacoonStudios
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#// Copyright (c) 2024 RacoonStudios
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#//
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#// Permission is hereby granted, free of charge, to any person obtaining a copy of this
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#// software and associated documentation files (the "Software"), to deal in the Software
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2020

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set(FILES
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private/linux/linux_clipboard.cpp
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private/linux/linux_graphics.cpp
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private/linux/linux_gui.cpp
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private/main.cpp
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private/application.cpp
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private/sample_window.cpp
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)

‎engine/foundation/gui/gui_linux.cmake renamed to ‎engine/samples/12_gui/gui_linux.cmake

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#////////////////////////////////////////////////////////////////////////////////////////////////////
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#// Copyright (c) 2025 RacoonStudios
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#// Copyright (c) 2024 RacoonStudios
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#//
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#// Permission is hereby granted, free of charge, to any person obtaining a copy of this
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#// software and associated documentation files (the "Software"), to deal in the Software
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dl
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atomic
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ncurses
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uuid
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${LINUX_XCB_LIBS}
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${LINUX_CAIRO_LIBS}
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)
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${LINUX_X11_LIBS}
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${DBUS_LIBRARIES}
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stdc++fs
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)

‎engine/samples/12_gui/private/application.cpp

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////////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright (c) 2024 RacoonStudios
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this
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// software and associated documentation files (the "Software"), to deal in the Software
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// without restriction, including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
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// to whom the Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all copies or
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// substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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////////////////////////////////////////////////////////////////////////////////////////////////////
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//[-------------------------------------------------------]
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//[ Includes ]
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//[-------------------------------------------------------]
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#include "application.h"
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#include "sample_window.h"
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#include <core/frontend/cursor_device.h>
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#include <core/frontend/window_device.h>
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#include <gui/gui/gui_server.h>
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#include <gui/gui/gui_window_callback.h>
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Application::Application()
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: gui::GuiApplication() {
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}
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Application::~Application() {
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}
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core::Ptr<gui::GuiWindow> Application::create_window(const core::WindowCreateDesc& windowCreateDesc) {
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core::uint32 colorId = get_window_device()->get_num_windows();
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auto window = get_window_device()->create_window(windowCreateDesc);
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// Append gui_window_callbacks
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window->add_window_callback(new gui::GuiWindowCallbacks());
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SampleWindow* guiWindow = new SampleWindow(mGuiServer, colorId);
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gui::GuiWindow* mainWindow = get_gui_server()->create_window(guiWindow, window);
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return core::Ptr<gui::GuiWindow>(guiWindow);
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}
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void Application::main() {
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auto window = create_window({"Some window", core::Recti(100, 100, 800, 600), core::EWindowStyle::WindowStyle_NoBorder});
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//auto window2 = create_window("Some window", core::Recti(200, 200, 800, 600), core::EWindowStyle::WindowStyle_NoBorder);
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while (true && get_window_device()->get_num_windows() > 0) {
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gui::GuiApplication::on_update();
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gui::GuiApplication::on_draw();
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}
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}

‎engine/samples/12_gui/private/main.cpp

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////////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright (c) 2024 RacoonStudios
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this
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// software and associated documentation files (the "Software"), to deal in the Software
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// without restriction, including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
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// to whom the Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all copies or
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// substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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////////////////////////////////////////////////////////////////////////////////////////////////////
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//[-------------------------------------------------------]
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//[ Includes ]
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//[-------------------------------------------------------]
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#include <core/main.h>
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#include "application.h"
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//[-------------------------------------------------------]
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//[ Program entry point ]
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//[-------------------------------------------------------]
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// This is the real entry point for any RacoonEngine executable. You must define this function if you
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// include <PLCore/Main.h> in your project. The parameters passed by the engine into this function
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// are self-explanatory.
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int be_main(const core::String &sExecutableFilename, const core::Vector<core::String> &lstArguments) {
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// We just create an instance of our very basic application class and run it. This will result
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// in the engine being initialized into usable state and the above Application::Main method
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// being called. Note that only the very essential engine systems are initialized, such as log
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// and plugin system. We will explore the initialization of more advanced systems (such as renderer)
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// in future exercise.
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Application app;
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return app.run(sExecutableFilename, lstArguments);
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}

‎engine/samples/12_gui/private/sample_window.cpp

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////////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright (c) 2024 RacoonStudios
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this
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// software and associated documentation files (the "Software"), to deal in the Software
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// without restriction, including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
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// to whom the Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all copies or
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// substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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////////////////////////////////////////////////////////////////////////////////////////////////////
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//[-------------------------------------------------------]
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//[ Includes ]
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//[-------------------------------------------------------]
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#include "sample_window.h"
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#include <core/color/color4.h>
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#include <imgui.h>
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//[-------------------------------------------------------]
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//[ Classes ]
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//[-------------------------------------------------------]
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SampleWindow::SampleWindow(core::Ptr<gui::GuiServer>& gui, core::uint32 colorId)
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: gui::GuiWindow(gui)
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, mColorId(colorId) {
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}
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SampleWindow::~SampleWindow() {
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}
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void SampleWindow::draw() {
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ImGui::ShowDemoWindow();
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}

‎engine/samples/12_gui/public/application.h

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////////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright (c) 2024 RacoonStudios
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this
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// software and associated documentation files (the "Software"), to deal in the Software
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// without restriction, including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
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// to whom the Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all copies or
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// substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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////////////////////////////////////////////////////////////////////////////////////////////////////
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//[-------------------------------------------------------]
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//[ Header guard ]
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//[-------------------------------------------------------]
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#pragma once
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//[-------------------------------------------------------]
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//[ Includes ]
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//[-------------------------------------------------------]
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#include <gui/application/gui_application.h>
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//[-------------------------------------------------------]
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//[ Classes ]
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//[-------------------------------------------------------]
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/**
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* @class
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* Application
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*
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* @brief
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* Example gui application.
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*/
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class Application : public gui::GuiApplication {
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public:
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/**
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* @brief
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* Constructor.
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*
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* @param[in] frontend
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* Reference to the frontend instance.
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*/
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Application();
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/**
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* @brief
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* Destructor.
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*/
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~Application() override;
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public:
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void main() override;
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public:
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core::Ptr<gui::GuiWindow> create_window(const core::WindowCreateDesc& windowCreateDesc) override;
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};

‎engine/foundation/gui/private/gui/gui_impl.cpp renamed to ‎engine/samples/12_gui/public/sample_window.h

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////////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright (c) 2025 RacoonStudios
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// Copyright (c) 2024 RacoonStudios
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this
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// software and associated documentation files (the "Software"), to deal in the Software
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2020

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//[-------------------------------------------------------]
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//[ Includes ]
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//[ Header guard ]
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//[-------------------------------------------------------]
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#include "gui/gui/gui_impl.h"
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#pragma once
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//[-------------------------------------------------------]
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//[ Namespace ]
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//[ Includes ]
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//[-------------------------------------------------------]
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namespace gui {
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#include <gui/gui/gui_window.h>
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//[-------------------------------------------------------]
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//[ Classes ]
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//[-------------------------------------------------------]
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GuiImpl::GuiImpl(Gui* gui)
38-
: mGui(gui) {
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}
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class SampleWindow : public gui::GuiWindow {
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public:
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SampleWindow(core::Ptr<gui::GuiServer>& gui, core::uint32 colorId);
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41-
GuiImpl::~GuiImpl() {
42-
}
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~SampleWindow() override;
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public:
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45-
//[-------------------------------------------------------]
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//[ Namespace ]
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//[-------------------------------------------------------]
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}
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void draw() override;
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private:
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core::uint32 mColorId;
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};

‎engine/samples/CMakeLists.txt

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re_add_subdirectory(06_sample_plugin_app)
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re_add_subdirectory(10_frontend)
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re_add_subdirectory(11_frontend_multiwindow)
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re_add_subdirectory(12_gui)
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re_add_subdirectory(20_low_level_rendering)

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