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AppContextController.h
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AppContextController.h
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/******************************************************************************
Copyright 2019-2020 Evgeny Gorodetskiy
Licensed under the Apache License, Version 2.0 (the "License"),
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*******************************************************************************
FILE: Methane/Graphics/AppContextController.h
Graphics context controller for switching parameters in runtime.
******************************************************************************/
#pragma once
#include <Methane/Platform/Input/Controller.h>
#include <Methane/Platform/Input/KeyboardActionControllerBase.hpp>
#include <map>
namespace Methane::Graphics::Rhi
{
struct IRenderContext;
} // namespace Methane::Graphics::Rhi
namespace Methane::Graphics
{
enum class AppContextAction
{
None,
SwitchVSync,
SwitchDevice,
AddFrameBufferToSwapChain,
RemoveFrameBufferFromSwapChain
};
namespace pin = Methane::Platform::Input;
class AppContextController final
: public pin::Controller
, public pin::Keyboard::ActionControllerBase<AppContextAction>
{
public:
inline static const ActionByKeyboardState default_action_by_keyboard_state{
{ { pin::Keyboard::Key::LeftControl, pin::Keyboard::Key::V }, AppContextAction::SwitchVSync },
{ { pin::Keyboard::Key::LeftControl, pin::Keyboard::Key::X }, AppContextAction::SwitchDevice },
{ { pin::Keyboard::Key::LeftControl, pin::Keyboard::Key::Equal }, AppContextAction::AddFrameBufferToSwapChain },
{ { pin::Keyboard::Key::LeftControl, pin::Keyboard::Key::Minus }, AppContextAction::RemoveFrameBufferFromSwapChain },
};
AppContextController(Rhi::IRenderContext& context, const ActionByKeyboardState& action_by_keyboard_state = default_action_by_keyboard_state);
// Input::Controller implementation
void OnKeyboardChanged(pin::Keyboard::Key, pin::Keyboard::KeyState, const pin::Keyboard::StateChange& state_change) override;
HelpLines GetHelp() const override;
protected:
// Input::Keyboard::ActionControllerBase interface
void OnKeyboardKeyAction(AppContextAction, pin::Keyboard::KeyState) override { /* not handled in this controller */ }
void OnKeyboardStateAction(AppContextAction action) override;
std::string GetKeyboardActionName(AppContextAction action) const override;
private:
void ResetContextWithNextDevice();
Rhi::IRenderContext& m_context;
};
} // namespace Methane::Graphics