qzdoom/wadsrc/static/zscript/menu/messagebox.txt

/*
** messagebox.cpp
** Confirmation, notification screns
**
**---------------------------------------------------------------------------
** Copyright 2010-2017 Christoph Oelckers
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
**    notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
**    notice, this list of conditions and the following disclaimer in the
**    documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
**    derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**---------------------------------------------------------------------------
**
*/

class MessageBoxMenu : Menu native
{
	native voidptr Handler;
	native int mMessageMode;
	native int messageSelection;
	native int mMouseLeft, mMouseRight, mMouseY;
	native Name mAction;

	native static void CallHandler(voidptr hnd);


	//=============================================================================
	//
	//
	//
	//=============================================================================

	protected void CloseSound()
	{
		MenuSound (GetCurrentMenu() != NULL? "menu/backup" : "menu/dismiss");
	}

	//=============================================================================
	//
	//
	//
	//=============================================================================

	virtual void HandleResult(bool res)
	{
		if (Handler != null)
		{
			if (res) 
			{
				CallHandler(Handler);
			}
			else
			{
				Close();
				CloseSound();
			}
		}
		else if (mParentMenu != NULL)
		{
			if (mMessageMode == 0)
			{
				if (mAction == 'None') 
				{
					mParentMenu.MenuEvent(res? MKEY_MBYes : MKEY_MBNo, false);
					Close();
				}
				else 
				{
					Close();
					if (res) SetMenu(mAction, -1);
				}
				CloseSound();
			}
		}
	}

	//=============================================================================
	//
	//
	//
	//=============================================================================

	override bool Responder(InputEventData ev)
	{
		if (ev.type == InputEventData.GUI_Event && ev.subtype == InputEventData.GUI_KeyDown)
		{
			if (mMessageMode == 0)
			{
				// tolower
				int ch = ev.data1;
				ch = ch >= 65 && ch <91? ch + 32 : ch;

				if (ch == 78 /*'n'*/ || ch == 32) 
				{
					HandleResult(false);		
					return true;
				}
				else if (ch == 89 /*'y'*/) 
				{
					HandleResult(true);
					return true;
				}
			}
			else
			{
				Close();
				return true;
			}
			return false;
		}
		else if (ev.type == InputEventData.KeyDown)
		{
			Close();
			return true;
		}
		return Super.Responder(ev);
	}

	//=============================================================================
	//
	//
	//
	//=============================================================================

	override bool MenuEvent(int mkey, bool fromcontroller)
	{
		if (mMessageMode == 0)
		{
			if (mkey == MKEY_Up || mkey == MKEY_Down)
			{
				MenuSound("menu/cursor");
				messageSelection = !messageSelection;
				return true;
			}
			else if (mkey == MKEY_Enter)
			{
				// 0 is yes, 1 is no
				HandleResult(!messageSelection);
				return true;
			}
			else if (mkey == MKEY_Back)
			{
				HandleResult(false);
				return true;
			}
			return false;
		}
		else
		{
			Close();
			CloseSound();
			return true;
		}
	}

	//=============================================================================
	//
	//
	//
	//=============================================================================

	override bool MouseEvent(int type, int x, int y)
	{
		if (mMessageMode == 1)
		{
			if (type == MOUSE_Click)
			{
				return MenuEvent(MKEY_Enter, true);
			}
			return false;
		}
		else
		{
			int sel = -1;
			int fh = SmallFont.GetHeight() + 1;

			// convert x/y from screen to virtual coordinates, according to CleanX/Yfac use in DrawTexture
			x = ((x - (screen.GetWidth() / 2)) / CleanXfac) + 160;
			y = ((y - (screen.GetHeight() / 2)) / CleanYfac) + 100;

			if (x >= mMouseLeft && x <= mMouseRight && y >= mMouseY && y < mMouseY + 2 * fh)
			{
				sel = y >= mMouseY + fh;
			}
			if (sel != -1 && sel != messageSelection)
			{
				//S_Sound (CHAN_VOICE | CHAN_UI, "menu/cursor", snd_menuvolume, ATTN_NONE);
			}
			messageSelection = sel;
			if (type == MOUSE_Release)
			{
				return MenuEvent(MKEY_Enter, true);
			}
			return true;
		}
	}


}