suyu/src/yuzu_cmd/emu_window/emu_window_sdl2.h
Lioncash 9e1b0af259 input_common: Eliminate most global state
Abstracts most of the input mechanisms under an InputSubsystem class
that is managed by the frontends, eliminating any static constructors
and destructors. This gets rid of global accessor functions and also
allows the frontends to have a more fine-grained control over the
lifecycle of the input subsystem.

This also makes it explicit which interfaces rely on the input subsystem
instead of making it opaque in the interface functions. All that remains
to migrate over is the factories, which can be done in a separate
change.
2020-08-27 16:11:17 -04:00

88 lines
2.5 KiB
C++

// Copyright 2016 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <memory>
#include <utility>
#include "core/frontend/emu_window.h"
struct SDL_Window;
namespace Core {
class System;
}
namespace InputCommon {
class InputSubsystem;
}
class EmuWindow_SDL2 : public Core::Frontend::EmuWindow {
public:
explicit EmuWindow_SDL2(Core::System& system, bool fullscreen,
InputCommon::InputSubsystem* input_subsystem);
~EmuWindow_SDL2();
/// Polls window events
void PollEvents() override;
/// Whether the window is still open, and a close request hasn't yet been sent
bool IsOpen() const;
/// Returns if window is shown (not minimized)
bool IsShown() const override;
/// Presents the next frame
virtual void Present() = 0;
protected:
/// Called by PollEvents when a key is pressed or released.
void OnKeyEvent(int key, u8 state);
/// Called by PollEvents when the mouse moves.
void OnMouseMotion(s32 x, s32 y);
/// Called by PollEvents when a mouse button is pressed or released
void OnMouseButton(u32 button, u8 state, s32 x, s32 y);
/// Translates pixel position (0..1) to pixel positions
std::pair<unsigned, unsigned> TouchToPixelPos(float touch_x, float touch_y) const;
/// Called by PollEvents when a finger starts touching the touchscreen
void OnFingerDown(float x, float y);
/// Called by PollEvents when a finger moves while touching the touchscreen
void OnFingerMotion(float x, float y);
/// Called by PollEvents when a finger stops touching the touchscreen
void OnFingerUp();
/// Called by PollEvents when any event that may cause the window to be resized occurs
void OnResize();
/// Called when user passes the fullscreen parameter flag
void Fullscreen();
/// Called when a configuration change affects the minimal size of the window
void OnMinimalClientAreaChangeRequest(std::pair<unsigned, unsigned> minimal_size) override;
/// Instance of the system, used to access renderer for the presentation thread
Core::System& system;
/// Is the window still open?
bool is_open = true;
/// Is the window being shown?
bool is_shown = true;
/// Internal SDL2 render window
SDL_Window* render_window{};
/// Keeps track of how often to update the title bar during gameplay
u32 last_time = 0;
/// Input subsystem to use with this window.
InputCommon::InputSubsystem* input_subsystem;
};