actually complete the input config dialog

src/frontend/qt_sdl/Input.cpp

@@ -0,0 +1,119 @@
+/*
+    Copyright 2016-2020 Arisotura
+
+    This file is part of melonDS.
+
+    melonDS is free software: you can redistribute it and/or modify it under
+    the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    melonDS is distributed in the hope that it will be useful, but WITHOUT ANY
+    WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+    FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with melonDS. If not, see http://www.gnu.org/licenses/.
+*/
+
+#include <QKeyEvent>
+#include <SDL2/SDL.h>
+
+#include "Input.h"
+#include "PlatformConfig.h"
+
+
+namespace Input
+{
+
+int JoystickID;
+SDL_Joystick* Joystick = nullptr;
+
+u32 KeyInputMask, JoyInputMask;
+u32 KeyHotkeyMask, JoyHotkeyMask;
+u32 HotkeyMask, LastHotkeyMask;
+u32 HotkeyPress, HotkeyRelease;
+
+
+void OpenJoystick()
+{
+    if (Joystick) SDL_JoystickClose(Joystick);
+
+    int num = SDL_NumJoysticks();
+    if (num < 1)
+    {
+        Joystick = nullptr;
+        return;
+    }
+
+    if (JoystickID >= num)
+        JoystickID = 0;
+
+    Joystick = SDL_JoystickOpen(JoystickID);
+}
+
+void CloseJoystick()
+{
+    if (Joystick)
+    {
+        SDL_JoystickClose(Joystick);
+        Joystick = nullptr;
+    }
+}
+
+
+void Process()
+{
+    SDL_JoystickUpdate();
+
+    if (Joystick)
+    {
+        if (!SDL_JoystickGetAttached(Joystick))
+        {
+            SDL_JoystickClose(Joystick);
+            Joystick = NULL;
+        }
+    }
+    if (!Joystick && (SDL_NumJoysticks() > 0))
+    {
+        JoystickID = Config::JoystickID;
+        OpenJoystick();
+    }
+
+    /*JoyInputMask = 0xFFF;
+    for (int i = 0; i < 12; i++)
+        if (JoystickButtonDown(Config::JoyMapping[i]))
+            JoyInputMask &= ~(1<<i);
+
+    JoyHotkeyMask = 0;
+    for (int i = 0; i < HK_MAX; i++)
+        if (JoystickButtonDown(Config::HKJoyMapping[i]))
+            JoyHotkeyMask |= (1<<i);
+
+    HotkeyMask = KeyHotkeyMask | JoyHotkeyMask;
+    HotkeyPress = HotkeyMask & ~LastHotkeyMask;
+    HotkeyRelease = LastHotkeyMask & ~HotkeyMask;
+    LastHotkeyMask = HotkeyMask;*/
+}
+
+
+// TODO: MacOS version of this!
+// distinguish between left and right modifier keys (Ctrl, Alt, Shift)
+// Qt provides no real cross-platform way to do this, so here we go
+// for Windows and Linux we can distinguish via scancodes (but both
+// provide different scancodes)
+#ifdef __WIN32__
+bool IsRightModKey(QKeyEvent* event)
+{
+    quint32 scan = event->nativeScanCode();
+    return (scan == 0x11D || scan == 0x138 || scan == 0x36);
+}
+#else
+bool IsRightModKey(QKeyEvent* event)
+{
+    quint32 scan = event->nativeScanCode();
+    return (scan == 0x69 || scan == 0x6C || scan == 0x3E);
+}
+#endif
+
+}