/*
**  ClanLib SDK
**  Copyright (c) 1997-2020 The ClanLib Team
**
**  This software is provided 'as-is', without any express or implied
**  warranty.  In no event will the authors be held liable for any damages
**  arising from the use of this software.
**
**  Permission is granted to anyone to use this software for any purpose,
**  including commercial applications, and to alter it and redistribute it
**  freely, subject to the following restrictions:
**
**  1. The origin of this software must not be misrepresented; you must not
**     claim that you wrote the original software. If you use this software
**     in a product, an acknowledgment in the product documentation would be
**     appreciated but is not required.
**  2. Altered source versions must be plainly marked as such, and must not be
**     misrepresented as being the original software.
**  3. This notice may not be removed or altered from any source distribution.
**
**  Note: Some of the libraries ClanLib may link to may have additional
**  requirements or restrictions.
**
**  File Author(s):
**
**    Magnus Norddahl
*/

#include "Display/precomp.h"
#include "API/Display/Window/input_event.h"
#include "API/Core/Text/string_format.h"
#ifdef __MINGW32__
#include "API/Display/Window/display_window.h"
#endif
#include "input_device_provider_win32mouse.h"
#include "win32_window.h"

namespace clan
{
	InputDeviceProvider_Win32Mouse::InputDeviceProvider_Win32Mouse(Win32Window *window) : window(window)
	{
		for (int i = 0; i < 32; i++) key_states[i] = false;
	}

	InputDeviceProvider_Win32Mouse::~InputDeviceProvider_Win32Mouse()
	{
		dispose();
	}

	Pointf InputDeviceProvider_Win32Mouse::get_position() const
	{
		return Pointf(get_device_position()) / window->get_pixel_ratio();
	}

	Point InputDeviceProvider_Win32Mouse::get_device_position() const
	{
		throw_if_disposed();
		POINT cursor_pos;
		GetCursorPos(&cursor_pos);

		BOOL res = ScreenToClient(window->get_hwnd(), &cursor_pos);
		if (res == FALSE) return Point();

		return Point(cursor_pos.x, cursor_pos.y);
	}

	bool InputDeviceProvider_Win32Mouse::get_keycode(int keycode) const
	{
		throw_if_disposed();
		if (keycode < 0 || keycode >= 32) return false;
		return key_states[keycode];
	}

	std::string InputDeviceProvider_Win32Mouse::get_key_name(int id) const
	{
		throw_if_disposed();
		switch (id)
		{
		case 0: return "Mouse left";
		case 1: return "Mouse right";
		case 2: return "Mouse middle";
		case 3: return "Mouse wheel up";
		case 4: return "Mouse wheel down";
		}

		return string_format("Mouse button %1", id);
	}

	std::string InputDeviceProvider_Win32Mouse::get_name() const
	{
		throw_if_disposed();
		return "System Mouse";
	}

	std::string InputDeviceProvider_Win32Mouse::get_device_name() const
	{
		throw_if_disposed();
		return "System Mouse";
	}

	int InputDeviceProvider_Win32Mouse::get_button_count() const
	{
		throw_if_disposed();
		return -1;
	}

	void InputDeviceProvider_Win32Mouse::set_position(float x, float y)
	{
		x *= window->get_pixel_ratio();
		y *= window->get_pixel_ratio();
		set_device_position(x, y);
	}

	void InputDeviceProvider_Win32Mouse::set_device_position(int x, int y)
	{
		throw_if_disposed();
		POINT pt;
		pt.x = x;
		pt.y = y;

		ClientToScreen(window->get_hwnd(), &pt);
		SetCursorPos(pt.x, pt.y);
	}

	void InputDeviceProvider_Win32Mouse::on_dispose()
	{
	}
}
