// -*-c++-*-
//------------------------------------------------------------------------------
// xword - (http://xword.sourceforge.net)
// Copyright 2002 Patrick Crosby <pcrosby@pobox.com>
//------------------------------------------------------------------------------
// XDialog.cpp
//
// $Id: XDialog.cpp,v 1.2 2002/01/23 19:43:03 pcrosby Exp $
//------------------------------------------------------------------------------
// 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 the Free Software
// Foundation; either version 2 of the License, or (at your option) any later
// version.
//
// This program 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
// this program; if not, write to the Free Software Foundation, Inc., 59 Temple
// Place, Suite 330, Boston, MA  02111-1307  USA
//------------------------------------------------------------------------------

#include "XDialog.h"

#include "Namespace.h"

NAMESPACE_OPEN

//------------------------------------------------------------------------------

XDialog* XDialog::m_pInstance(NULL);

//------------------------------------------------------------------------------

XDialog::XDialog()
{
	// set_usize(100, 100);

	// Needed to insure that the underlying GdkWindow* exists.  This
	// is needed so that CenterOverWidget() can successfully call
	// gdk_window_get_size().
	realize();

	m_pPopupWin = GTK_WIDGET(&gtkobj()->window)->window;
}

//------------------------------------------------------------------------------

XDialog*
XDialog::Instance()
{
	if (m_pInstance == NULL) {
		m_pInstance = new XDialog;
	}
	
	return m_pInstance;
}

//------------------------------------------------------------------------------

void
XDialog::WindowManagerDecides()
{
	// You have to call set_position() before the map event.
	set_position(GTK_WIN_POS_NONE);
	show_all();

	// This extra call to gdk_window_show() is needed to raise a
	// window that is mapped but obscured by another window or to
	// uniconify the window.
	gdk_window_show(m_pPopupWin);
}

//------------------------------------------------------------------------------

void
XDialog::CenterOverDisplay()
{
	// You have to call set_position() before the map event.
	set_position(GTK_WIN_POS_CENTER);
	show_all();
	gdk_window_show(m_pPopupWin);  // See comment in WindowManagerDecides().
}

//------------------------------------------------------------------------------

void
XDialog::CenterOverMouse()
{
	// You have to call set_position() before the map event.
	set_position(GTK_WIN_POS_MOUSE);
	show_all();
	gdk_window_show(m_pPopupWin);  // See comment in WindowManagerDecides().
}

//------------------------------------------------------------------------------

void
XDialog::CenterOverWidget(Widget* targetWidget)
{
	gint x, y, w, h;   // parent upper-left position and width and height
	gint dw, dh;       // popup`s width and height
	
	GdkWindow* gdkTargetWin = GTK_WIDGET(targetWidget->gtkobj())->window;
	if( gdkTargetWin == 0 ) {
		return CenterOverDisplay();
	}
	
	if( !is_mapped() ) {
		// Surely there is an easier way to get the size of a Gtk::Window.
		gdk_window_get_origin(gdkTargetWin, &x, &y);
		gdk_window_get_size(gdkTargetWin, &w, &h);
		gdk_window_get_size(m_pPopupWin, &dw, &dh);
		
		int centerX = x + w/2 - dw/2;
		int centerY = y + h/2 - dh/2;
		
		set_position(GTK_WIN_POS_NONE);
		set_uposition(centerX, centerY);
		show_all();
	}
	gdk_window_show(m_pPopupWin);  // See comment in WindowManagerDecides().
}

//------------------------------------------------------------------------------

gint
XDialog::delete_event_impl(GdkEventAny* p0)
{
	hide();
	return 1;
}

//------------------------------------------------------------------------------

NAMESPACE_CLOSE

//------------------------------------------------------------------------------