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+/*
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+ * This source file is part of RmlUi, the HTML/CSS Interface Middleware
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+ *
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+ * For the latest information, see http://github.com/mikke89/RmlUi
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+ *
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+ * Copyright (c) 2018 Michael R. P. Ragazzon
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+ * Copyright (c) 2019 The RmlUi Team, and contributors
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+ *
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+ * Permission is hereby granted, free of charge, to any person obtaining a copy
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+ * of this software and associated documentation files (the "Software"), to deal
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+ * in the Software without restriction, including without limitation the rights
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+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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+ * copies of the Software, and to permit persons to whom the Software is
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+ * 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
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+ * all copies or 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
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+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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+ * THE SOFTWARE.
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+ *
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+ */
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+
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+#include <RmlUi/Core.h>
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+#include <RmlUi/Controls.h>
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+#include <RmlUi/Debugger.h>
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+#include <Input.h>
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+#include <Shell.h>
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+#include <ShellRenderInterfaceOpenGL.h>
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+
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+
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+class DemoWindow : public Rml::Core::EventListener
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+{
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+public:
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+ DemoWindow(const Rml::Core::String &title, const Rml::Core::Vector2f &position, Rml::Core::Context *context)
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+ {
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+ using namespace Rml::Core;
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+ document = context->LoadDocument("basic/databinding/data/databinding.rml");
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+ if (document)
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+ {
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+ document->GetElementById("title")->SetInnerRML(title);
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+ document->SetProperty(PropertyId::Left, Property(position.x, Property::PX));
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+ document->SetProperty(PropertyId::Top, Property(position.y, Property::PX));
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+
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+ document->Show();
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+ }
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+ }
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+
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+ void Update()
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+ {
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+
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+ }
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+
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+ void Shutdown()
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+ {
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+ if (document)
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+ {
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+ document->Close();
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+ document = nullptr;
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+ }
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+ }
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+
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+ void ProcessEvent(Rml::Core::Event& event) override
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+ {
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+ using namespace Rml::Core;
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+
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+ switch (event.GetId())
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+ {
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+ case EventId::Keydown:
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+ {
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+ Rml::Core::Input::KeyIdentifier key_identifier = (Rml::Core::Input::KeyIdentifier) event.GetParameter< int >("key_identifier", 0);
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+ bool ctrl_key = event.GetParameter< bool >("ctrl_key", false);
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+
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+ if (key_identifier == Rml::Core::Input::KI_ESCAPE)
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+ {
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+ Shell::RequestExit();
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+ }
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+ else if (key_identifier == Rml::Core::Input::KI_F8)
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+ {
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+ Rml::Debugger::SetVisible(!Rml::Debugger::IsVisible());
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+ }
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+ }
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+ break;
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+
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+ default:
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+ break;
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+ }
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+ }
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+
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+ Rml::Core::ElementDocument * GetDocument() {
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+ return document;
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+ }
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+
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+
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+private:
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+ Rml::Core::ElementDocument *document = nullptr;
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+};
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+
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+
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+Rml::Core::Context* context = nullptr;
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+ShellRenderInterfaceExtensions *shell_renderer;
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+std::unique_ptr<DemoWindow> demo_window;
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+
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+void GameLoop()
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+{
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+ demo_window->Update();
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+ context->Update();
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+
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+ shell_renderer->PrepareRenderBuffer();
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+ context->Render();
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+ shell_renderer->PresentRenderBuffer();
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+}
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+
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+
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+
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+
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+class DemoEventListener : public Rml::Core::EventListener
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+{
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+public:
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+ DemoEventListener(const Rml::Core::String& value, Rml::Core::Element* element) : value(value), element(element) {}
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+
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+ void ProcessEvent(Rml::Core::Event& event) override
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+ {
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+ using namespace Rml::Core;
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+
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+ if (value == "exit")
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+ {
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+ Shell::RequestExit();
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+ }
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+ }
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+
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+ void OnDetach(Rml::Core::Element* element) override { delete this; }
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+
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+private:
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+ Rml::Core::String value;
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+ Rml::Core::Element* element;
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+};
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+
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+
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+
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+class DemoEventListenerInstancer : public Rml::Core::EventListenerInstancer
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+{
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+public:
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+ Rml::Core::EventListener* InstanceEventListener(const Rml::Core::String& value, Rml::Core::Element* element) override
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+ {
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+ return new DemoEventListener(value, element);
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+ }
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+};
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+
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+
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+#if defined RMLUI_PLATFORM_WIN32
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+#include <windows.h>
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+int APIENTRY WinMain(HINSTANCE RMLUI_UNUSED_PARAMETER(instance_handle), HINSTANCE RMLUI_UNUSED_PARAMETER(previous_instance_handle), char* RMLUI_UNUSED_PARAMETER(command_line), int RMLUI_UNUSED_PARAMETER(command_show))
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+#else
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+int main(int RMLUI_UNUSED_PARAMETER(argc), char** RMLUI_UNUSED_PARAMETER(argv))
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+#endif
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+{
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+#ifdef RMLUI_PLATFORM_WIN32
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+ RMLUI_UNUSED(instance_handle);
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+ RMLUI_UNUSED(previous_instance_handle);
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+ RMLUI_UNUSED(command_line);
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+ RMLUI_UNUSED(command_show);
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+#else
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+ RMLUI_UNUSED(argc);
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+ RMLUI_UNUSED(argv);
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+#endif
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+
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+ const int width = 1600;
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+ const int height = 900;
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+
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+ ShellRenderInterfaceOpenGL opengl_renderer;
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+ shell_renderer = &opengl_renderer;
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+
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+ // Generic OS initialisation, creates a window and attaches OpenGL.
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+ if (!Shell::Initialise() ||
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+ !Shell::OpenWindow("Data Binding Sample", shell_renderer, width, height, true))
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+ {
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+ Shell::Shutdown();
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+ return -1;
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+ }
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+
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+ // RmlUi initialisation.
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+ Rml::Core::SetRenderInterface(&opengl_renderer);
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+ opengl_renderer.SetViewport(width, height);
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+
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+ ShellSystemInterface system_interface;
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+ Rml::Core::SetSystemInterface(&system_interface);
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+
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+ Rml::Core::Initialise();
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+
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+ // Create the main RmlUi context and set it on the shell's input layer.
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+ context = Rml::Core::CreateContext("main", Rml::Core::Vector2i(width, height));
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+ if (context == nullptr)
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+ {
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+ Rml::Core::Shutdown();
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+ Shell::Shutdown();
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+ return -1;
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+ }
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+
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+ Rml::Controls::Initialise();
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+ Rml::Debugger::Initialise(context);
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+ Input::SetContext(context);
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+ shell_renderer->SetContext(context);
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+
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+ DemoEventListenerInstancer event_listener_instancer;
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+ Rml::Core::Factory::RegisterEventListenerInstancer(&event_listener_instancer);
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+
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+ Shell::LoadFonts("assets/");
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+
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+ demo_window = std::make_unique<DemoWindow>("Data binding", Rml::Core::Vector2f(150, 50), context);
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+ demo_window->GetDocument()->AddEventListener(Rml::Core::EventId::Keydown, demo_window.get());
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+ demo_window->GetDocument()->AddEventListener(Rml::Core::EventId::Keyup, demo_window.get());
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+
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+ Shell::EventLoop(GameLoop);
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+
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+ demo_window->Shutdown();
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+
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+ // Shutdown RmlUi.
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+ Rml::Core::Shutdown();
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+
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+ Shell::CloseWindow();
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+ Shell::Shutdown();
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+
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+ demo_window.reset();
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+
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+ return 0;
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+}
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Michael Ragazzon