sdlinput.cpp

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/*
 * The ManaPlus Client
 * Copyright (C) 2011-2018 The ManaPlus Developers
 *
 * This file is part of The ManaPlus Client.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
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 *
 * This program is distributed in the hope that it will be useful,
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 */

/* _______ __ __ __ ______ __ __ _______ __ __
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 * Copyright (c) 2004, 2005, 2006, 2007 Olof Naessén and Per Larsson
 * Copyright (C) 2007-2010 The Mana World Development Team
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 * Per Larsson a.k.a finalman _RqZ{a<^_aa
 * Olof Naessén a.k.a jansem/yakslem _asww7!uY`> )\a//
 * _Qhm`] _f "'c 1!5m
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 */

#include "sdlshared.h"

#include "input/inputmanager.h"

#include "gui/gui.h"
#include "gui/sdlinput.h"

#include "render/graphics.h"

PRAGMA48(GCC diagnostic push)
PRAGMA48(GCC diagnostic ignored "-Wshadow")
#include <SDL_timer.h>
PRAGMA48(GCC diagnostic pop)

#include "debug.h"

extern volatile time_t cur_time;

SDLInput *guiInput = nullptr;

SDLInput::SDLInput() :
 mKeyInputQueue(),
 mMouseInputQueue(),
 mMouseMoveTime(0),
 mMouseDown(false),
 mMouseInWindow(true)
{
}

KeyInput SDLInput::dequeueKeyInput()
{
 if (mKeyInputQueue.empty())
 return KeyInput();

 KeyInput keyInput = mKeyInputQueue.front();
 mKeyInputQueue.pop();

 return keyInput;
}

MouseInput SDLInput::dequeueMouseInput()
{
 MouseInput mouseInput;

 if (mMouseInputQueue.empty())
 return MouseInput();

 mouseInput = mMouseInputQueue.front();
 mMouseInputQueue.pop();

 return mouseInput;
}

void SDLInput::pushInput(const SDL_Event &event)
{
 BLOCK_START("SDLInput::pushInput")
 KeyInput keyInput;
 MouseInput mouseInput;

 switch (event.type)
 {
 case SDL_KEYDOWN:
 {
 keyInput.setType(KeyEventType::PRESSED);
 convertKeyEventToKey(event, keyInput);
 mKeyInputQueue.push(keyInput);
 break;
 }

 case SDL_KEYUP:
 {
 keyInput.setType(KeyEventType::RELEASED);
 convertKeyEventToKey(event, keyInput);
 mKeyInputQueue.push(keyInput);
 break;
 }

#ifdef USE_SDL2
 case SDL_TEXTINPUT:
 keyInput.setType(KeyEventType::PRESSED);
 keyInput.setKey(Key(KeyValue::TEXTINPUT));
 keyInput.setText(event.text.text);
 mKeyInputQueue.push(keyInput);
 break;

 case SDL_MOUSEWHEEL:
 {
 const int y = event.wheel.y;
 if (y)
 {
 mouseInput.setX(gui->getLastMouseX());
 mouseInput.setY(gui->getLastMouseY());
#ifdef ANDROID
 mouseInput.setReal(0, 0);
#endif // ANDROID

 mouseInput.setButton(MouseButton::WHEEL);
 if (y > 0)
 mouseInput.setType(MouseEventType::WHEEL_MOVED_UP);
 else
 mouseInput.setType(MouseEventType::WHEEL_MOVED_DOWN);
 mouseInput.setTimeStamp(SDL_GetTicks());
 mMouseInputQueue.push(mouseInput);
 }

 break;
 }
#endif // USE_SDL2

#ifdef ANDROID
#ifndef USE_SDL2
 case SDL_ACCELEROMETER:
 break;
#endif // USE_SDL2
#endif // ANDROID

 case SDL_MOUSEBUTTONDOWN:
 {
 mMouseDown = true;
 const int scale = mainGraphics->getScale();
 const int x = event.button.x / scale;
 const int y = event.button.y / scale;
 mouseInput.setX(x);
 mouseInput.setY(y);
#ifdef ANDROID
#ifdef USE_SDL2
 mouseInput.setReal(x, y);
#else // USE_SDL2

 mouseInput.setReal(event.button.realx / scale,
 event.button.realy / scale);
#endif // USE_SDL2
#endif // ANDROID

 mouseInput.setButton(convertMouseButton(event.button.button));

#ifndef USE_SDL2
 if (event.button.button == SDL_BUTTON_WHEELDOWN)
 mouseInput.setType(MouseEventType::WHEEL_MOVED_DOWN);
 else if (event.button.button == SDL_BUTTON_WHEELUP)
 mouseInput.setType(MouseEventType::WHEEL_MOVED_UP);
 else
#endif // USE_SDL2
 mouseInput.setType(MouseEventType::PRESSED);
 mouseInput.setTimeStamp(SDL_GetTicks());
 mMouseInputQueue.push(mouseInput);
 break;
 }
 case SDL_MOUSEBUTTONUP:
 {
 mMouseDown = false;
 const int scale = mainGraphics->getScale();
 const int x = event.button.x / scale;
 const int y = event.button.y / scale;
 mouseInput.setX(x);
 mouseInput.setY(y);
#ifdef ANDROID
#ifdef USE_SDL2
 mouseInput.setReal(x, y);
#else // USE_SDL2

 mouseInput.setReal(event.button.realx / scale,
 event.button.realy / scale);
#endif // USE_SDL2
#endif // ANDROID

 mouseInput.setButton(convertMouseButton(event.button.button));
 mouseInput.setType(MouseEventType::RELEASED);
 mouseInput.setTimeStamp(SDL_GetTicks());
 mMouseInputQueue.push(mouseInput);
 break;
 }
 case SDL_MOUSEMOTION:
 {
 const int scale = mainGraphics->getScale();
 const int x = event.motion.x / scale;
 const int y = event.motion.y / scale;
 mouseInput.setX(x);
 mouseInput.setY(y);
#ifdef ANDROID
#ifdef USE_SDL2
 mouseInput.setReal(x, y);
#else // USE_SDL2

  mouseInput.setReal(event.motion.realx / scale,
 event.motion.realy / scale);
#endif // USE_SDL2
#endif // ANDROID

 mouseInput.setButton(MouseButton::EMPTY);
 mouseInput.setType(MouseEventType::MOVED);
 mouseInput.setTimeStamp(SDL_GetTicks());
 mMouseInputQueue.push(mouseInput);
 mMouseMoveTime = cur_time;
 break;
 }
#ifndef USE_SDL2
 case SDL_ACTIVEEVENT:
 /*
 * This occurs when the mouse leaves the window and the Gui-chan
 * application loses its mousefocus.
 */
 if ((event.active.state & SDL_APPMOUSEFOCUS) != 0 &&
 event.active.gain == 0u)
 {
 mMouseInWindow = false;

 if (!mMouseDown)
 {
 mouseInput.setX(-1);
 mouseInput.setY(-1);
 mouseInput.setButton(MouseButton::EMPTY);
 mouseInput.setType(MouseEventType::MOVED);
 mMouseInputQueue.push(mouseInput);
 mMouseMoveTime = cur_time;
 }
 }

 if ((event.active.state & SDL_APPMOUSEFOCUS) != 0 &&
 event.active.gain != 0u)
 {
 mMouseInWindow = true;
 }
 break;
#endif // USE_SDL2

 default:
 break;
 } // end switch
 BLOCK_END("SDLInput::pushInput")
}

void SDLInput::convertKeyEventToKey(const SDL_Event &event, KeyInput &keyInput)
{
 keyInput.setKey(Key(convertKeyCharacter(event)));
 const InputActionT actionId = inputManager.getActionByKey(event);
 if (actionId > InputAction::NO_VALUE)
 keyInput.setActionId(actionId);
}

MouseButtonT SDLInput::convertMouseButton(const int button)
{
 switch (button)
 {
 case SDL_BUTTON_LEFT:
 return MouseButton::LEFT;
 case SDL_BUTTON_RIGHT:
  return MouseButton::RIGHT;
 case SDL_BUTTON_MIDDLE:
 return MouseButton::MIDDLE;
#ifndef USE_SDL2
 case SDL_BUTTON_WHEELUP:
 case SDL_BUTTON_WHEELDOWN:
 return MouseButton::EMPTY;
#endif // USE_SDL2

 default:
 // We have an unknown mouse type which is ignored.
 logger->log("unknown button type: %d", button);
 return MouseButton::EMPTY;
 }
}

void SDLInput::simulateMouseClick(const int x, const int y,
 const MouseButtonT button)
{
 MouseInput mouseInput;
 mouseInput.setX(x);
 mouseInput.setY(y);
 mouseInput.setReal(x, y);
 mouseInput.setButton(MouseButton::EMPTY);
 mouseInput.setType(MouseEventType::MOVED);
 mouseInput.setTimeStamp(SDL_GetTicks());
 mMouseInputQueue.push(mouseInput);
 mouseInput.setButton(button);
 mouseInput.setType(MouseEventType::PRESSED);
 mouseInput.setTimeStamp(SDL_GetTicks());
 mMouseInputQueue.push(mouseInput);
 mouseInput.setType(MouseEventType::RELEASED);
 mouseInput.setTimeStamp(SDL_GetTicks());
 mMouseInputQueue.push(mouseInput);
}

void SDLInput::simulateMouseMove()
{
 if (gui == nullptr)
 return;

 if (mMouseMoveTime == cur_time)
 return;

 mMouseMoveTime = cur_time;
 int x, y;
 Gui::getMouseState(x, y);

 MouseInput mouseInput;
 mouseInput.setX(x);
 mouseInput.setY(y);
 mouseInput.setReal(x, y);
 mouseInput.setButton(MouseButton::EMPTY);
 mouseInput.setType(MouseEventType::MOVED);
 mouseInput.setTimeStamp(SDL_GetTicks());
 mMouseInputQueue.push(mouseInput);
}

void SDLInput::simulateKey(const int guiKey,
 const InputActionT actionId)
{
 KeyInput keyInput;
 keyInput.setType(KeyEventType::PRESSED);
#ifdef USE_SDL2
 char str[2];
 str[0] = CAST_S8(guiKey);
 str[1] = 0;

 keyInput.setKey(Key(KeyValue::TEXTINPUT));
 keyInput.setText(str);
 if (guiKey >= 32)
 mKeyInputQueue.push(keyInput);
#endif // USE_SDL2

 keyInput.setKey(Key(guiKey));
 if (actionId > InputAction::NO_VALUE)
 keyInput.setActionId(actionId);
 mKeyInputQueue.push(keyInput);
 keyInput.setType(KeyEventType::RELEASED);
 mKeyInputQueue.push(keyInput);
}