unixsite.cpp

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/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: unixsite.cpp,v 1.4.4.8 2004/07/22 23:25:26 nhart Exp $
 * 
 * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
 * 
 * The contents of this file, and the files included with this file,
 * are subject to the current version of the RealNetworks Public
 * Source License (the "RPSL") available at
 * http://www.helixcommunity.org/content/rpsl unless you have licensed
 * the file under the current version of the RealNetworks Community
 * Source License (the "RCSL") available at
 * http://www.helixcommunity.org/content/rcsl, in which case the RCSL
 * will apply. You may also obtain the license terms directly from
 * RealNetworks.  You may not use this file except in compliance with
 * the RPSL or, if you have a valid RCSL with RealNetworks applicable
 * to this file, the RCSL.  Please see the applicable RPSL or RCSL for
 * the rights, obligations and limitations governing use of the
 * contents of the file.
 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL") in which case the provisions of the GPL are applicable
 * instead of those above. If you wish to allow use of your version of
 * this file only under the terms of the GPL, and not to allow others
 * to use your version of this file under the terms of either the RPSL
 * or RCSL, indicate your decision by deleting the provisions above
 * and replace them with the notice and other provisions required by
 * the GPL. If you do not delete the provisions above, a recipient may
 * use your version of this file under the terms of any one of the
 * RPSL, the RCSL or the GPL.
 * 
 * This file is part of the Helix DNA Technology. RealNetworks is the
 * developer of the Original Code and owns the copyrights in the
 * portions it created.
 * 
 * This file, and the files included with this file, is distributed
 * and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
 * KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
 * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET
 * ENJOYMENT OR NON-INFRINGEMENT.
 * 
 * Technology Compatibility Kit Test Suite(s) Location:
 *    http://www.helixcommunity.org/content/tck
 * 
 * Contributor(s):
 *                 Phil Dibowitz
 * 
 * ***** END LICENSE BLOCK ***** */

#ifndef _UNIX
#error This is the UNIX platform specific implementation.
#endif

//
// System includes...
//
#include <stdio.h>
#include "hlxclib/string.h"
#include <X11/Intrinsic.h>
#include <X11/Shell.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/keysym.h>
#include <X11/Xos.h>
#include <X11/cursorfont.h>
#include <X11/extensions/XShm.h>


//
// RMA includes...
//
#include "hxcom.h"
#include "hxcore.h"
#include "hxevent.h"
#include "hxwintyp.h"
#include "hxwin.h"
#include "hxsite2.h"
#include "hxtypes.h"
#include "unixsite.h"
#include "unixcmap.h"
#include "visuals.h"
#include "region.h"
#include "basesurf.h"
#include "unixroot.h"
#include "hxthread.h"
#include "hxtick.h"
#include "sitetext.h"

#include "unixsurf.h"

#include "hxprefs.h"

//
// Global & Static global/member data....
//
Display *CHXUnixSite::zm_display = NULL;
static CHXMapPtrToPtr z_mapSiteToWindow;

//
// Scroll bar support
//
#define SCROLL_BAR_WIDTH 13        //Width of scroll bar.
//#define _ARROWS_SIDE_BY_SIDE 1   //Regular or side by side arrows?




//
// CHXUnixSite only Methods...
//
CHXUnixSite::CHXUnixSite( IUnknown* pContext, IUnknown* pUnkOuter, INT32 lInitialZorder)
   : CHXBaseSite( pContext, pUnkOuter, lInitialZorder )
   , m_pUnixEventHandler(NULL)
   , m_ScrollHorizButtonL(0)
   , m_ScrollHorizButtonR(0)
   , m_ScrollVertButtonT(0)
   , m_ScrollVertButtonB(0)
   , m_winFullScreenWindow(0)
   , m_winOldParent(0)
   , m_bScrollingInProgress(FALSE)
   , m_nScrollDir(0)
   , m_bLastPointInSite(FALSE)
   , m_bDamaged(FALSE)
   , m_bIgnoreFocusOutInFS(FALSE)
{
   m_ptScrollVertPosT.x   = m_ptScrollVertPosT.y   = 0;
   m_ptScrollVertPosB.x   = m_ptScrollVertPosB.y   = 0;
   m_ptScrollHorizPosR.x  = m_ptScrollHorizPosR.y  = 0;
   m_ptScrollHorizPosL.x  = m_ptScrollHorizPosL.y  = 0;
   m_ptFullScreenOffset.x = m_ptFullScreenOffset.y = 0;
   memset( &m_PreFullScreenSize, 0, sizeof( m_PreFullScreenSize ) );
   
   HX_ASSERT( m_pContext );
   IHXPreferences* pPreferences = NULL;   
   if( m_pContext && HXR_OK == m_pContext->QueryInterface( IID_IHXPreferences, (void **) &pPreferences))
   { 
       IHXBuffer *pBuffer = NULL;
       pPreferences->ReadPref("IgnoreFocusOutInFS", pBuffer);
       if(pBuffer)
       {
           m_bIgnoreFocusOutInFS = (::atoi((const char*)pBuffer->GetBuffer()) == 1);
           HX_RELEASE(pBuffer);
       }
   }
}

CHXUnixSite::~CHXUnixSite()
{   
   void* pDummy; 
   if (z_mapSiteToWindow.Lookup((void*)this, pDummy))
   {
      z_mapSiteToWindow.RemoveKey((void*)this);
   }

   if( m_pUnixEventHandler )
   {
      m_pUnixEventHandler->CancelCallback();
      HX_RELEASE(m_pUnixEventHandler);
   }
}

HX_RESULT CHXUnixSite::_OpenXDisplay(char* pszDisplayString)
{
   HX_RESULT retVal = HXR_OK;
    
   //Is the connection open already?
   if( NULL==zm_display )
   {
      zm_display = XOpenDisplay(pszDisplayString);
      
      //If you can't open the display your done.
      if(NULL == zm_display )
      {
         HX_ASSERT("Can't open X Display..."==NULL);
         retVal = HXR_FAIL;
      }
      else
      {
         HX_ASSERT(m_pScheduler);
         if( m_pScheduler )
         {
            //UnixEventHandler scheduls itself for init callback
            //in the ctor.
            m_pUnixEventHandler = new UnixEventHandler(this);
            m_pUnixEventHandler->AddRef();
         }
      }
   }
   return retVal;
}

Window CHXUnixSite::CreateXWindow( Window win )
{
   Window     parentWindow;
   HXxWindow* pWindow = NULL;
   //If parentWin is NULL then we belong to the root window.    
   if( win )
   {
      parentWindow = win;
   }
   else
   {
      HX_ASSERT(zm_display);
      XLockDisplay(zm_display);
      parentWindow = RootWindow(zm_display, DefaultScreen(zm_display));
      XUnlockDisplay(zm_display);      
   }
    
   //Find the best visual to use on this display.
   Visual* visual = GetBestVisual(zm_display);

   //Get the visual info.
   int         nNotUsed=0;
   XVisualInfo stVisInfo;
    
   memset(&stVisInfo, 0, sizeof(XVisualInfo));
   stVisInfo.visualid = XVisualIDFromVisual(visual);
   XLockDisplay(zm_display);
   XVisualInfo* pVisual = XGetVisualInfo( zm_display,
                                          VisualIDMask,
                                          &stVisInfo,
                                          &nNotUsed );
   XUnlockDisplay(zm_display);

   // Set up attributes of the window.
   int                  attrMask = CWBackPixel | CWBorderPixel;
   XSetWindowAttributes attr;
    
   memset(&attr, 0, sizeof(XSetWindowAttributes));
   XLockDisplay(zm_display);
   attr.background_pixel = BlackPixel(zm_display, DefaultScreen(zm_display));
   attr.border_pixel     = BlackPixel(zm_display, DefaultScreen(zm_display));
   XUnlockDisplay(zm_display);
   
   //See if the default visaul of hte screen is the same one we Want
   //to use. If not, create a new one and install it.
   Colormap cmap;
   XLockDisplay(zm_display);
   Visual*  defVisual = DefaultVisual(zm_display, DefaultScreen(zm_display));
   XUnlockDisplay(zm_display);
   if( defVisual->visualid != stVisInfo.visualid )
   {
      //XXXgfw Are we leaking this colormap????
      XLockDisplay(zm_display);
      cmap = XCreateColormap(zm_display, parentWindow, visual, AllocNone);
      XUnlockDisplay(zm_display);
      attr.colormap = cmap;
      attrMask |= CWColormap;
   }

   // Set the size/position of the window before creating.
   XSizeHints size_hints;

   size_hints.flags  = PPosition | PSize;
   size_hints.x      = m_position.x;
   size_hints.y      = m_position.y;
   size_hints.width  = 1;
   size_hints.height = 1;

   //Create it.
   XLockDisplay(zm_display);
   Window window = XCreateWindow(zm_display, 
                                 parentWindow,
                                 size_hints.x,
                                 size_hints.y,
                                 size_hints.width,
                                 size_hints.height, 
                                 0,
                                 pVisual->depth,
                                 InputOutput,
                                 visual,
                                 attrMask,
                                 &attr);
   XUnlockDisplay(zm_display);
   XFree(pVisual);

   //Tell the WM about this window.
#if 0
   XSetStandardProperties( zm_display,
                           window,
                           "CHXUnixSite",
                           "CHXUnixSite",
                           None,
                           NULL, 0,
                           &size_hints
                           );
#endif

   //Select all input events on the window since the other platforms
   //we work with have no concept of event masks
   XLockDisplay(zm_display);   
   int result = XSelectInput( zm_display, window,
                              ButtonPressMask   | ButtonReleaseMask | KeyPressMask    |
                              KeyReleaseMask    | EnterWindowMask   | LeaveWindowMask |
                              PointerMotionMask | ButtonMotionMask  | KeymapStateMask |
                              ExposureMask      | StructureNotifyMask | FocusChangeMask
                              );
   XUnlockDisplay(zm_display);
   if( BadWindow == result )
   {
#ifdef _DEBUG
      fprintf( stderr, "Can select events.\n" );
#endif      
   }
   
   //Map the window.
   XLockDisplay(zm_display);
   XMapWindow(zm_display, window);

   //Flush event queue.
   XFlush(zm_display);
   XUnlockDisplay(zm_display);


   return window;
}

void CHXUnixSite::_MapHorzScroll()
{
   if( GetWindow() && GetWindow()->display && m_ScrollHorizButtonL)
   {
      Display* pDis = (Display*)GetWindow()->display;
      XLockDisplay(pDis);
      XMapWindow( pDis, m_ScrollHorizButtonL );
      XMapWindow( pDis, m_ScrollHorizButtonR ); 
      XUnlockDisplay(pDis);
   }
   _DrawArrows();
}

void CHXUnixSite::_MapVertScroll()
{
   if( GetWindow() && GetWindow()->display && m_ScrollVertButtonT)
   {
      Display* pDis = (Display*)GetWindow()->display;
      XLockDisplay(pDis);
      XMapWindow( pDis, m_ScrollVertButtonT );
      XMapWindow( pDis, m_ScrollVertButtonB );
      XUnlockDisplay(pDis);
   }
   _DrawArrows();
}

void CHXUnixSite::_MapScrollButtons()
{
   _MapHorzScroll();
   _MapVertScroll();
}

void CHXUnixSite::_UnmapHorzScroll()
{
   HX_ASSERT( GetWindow() );
   if( m_ScrollHorizButtonL && GetWindow()->display )
   {
      Display* pDis = (Display*)GetWindow()->display;
      XLockDisplay(pDis);
      XUnmapWindow( pDis, m_ScrollHorizButtonL );
      XUnmapWindow( pDis, m_ScrollHorizButtonR );
      XUnlockDisplay(pDis);
   }
}
void CHXUnixSite::_UnmapVertScroll()
{
   HX_ASSERT( GetWindow() );
   if( m_ScrollVertButtonT && GetWindow()->display )
   {
      Display* pDis = (Display*)GetWindow()->display;
      XLockDisplay(pDis);
      XUnmapWindow( pDis, m_ScrollVertButtonT );
      XUnmapWindow( pDis, m_ScrollVertButtonB ); 
      XUnlockDisplay(pDis);
   }
}

void CHXUnixSite::_UnmapScrollButtons()
{
   if( GetWindow() )
   {
      _UnmapVertScroll();
      _UnmapHorzScroll();
   }
}

void CHXUnixSite::_DestroyScrollButtons()
{
    if (GetWindow())
    {
	Display* pDis = (Display*)GetWindow()->display;
	if( m_ScrollHorizButtonL && pDis )
	{
	    XLockDisplay(pDis);
	    XDestroyWindow( pDis, m_ScrollHorizButtonL );
	    m_ScrollHorizButtonL = 0;
	    XDestroyWindow( pDis, m_ScrollHorizButtonR );
	    XUnlockDisplay(pDis);
	    m_ScrollHorizButtonR = 0;
	}
	if( m_ScrollVertButtonT && pDis)
	{
	    XLockDisplay(pDis);
	    XDestroyWindow( pDis, m_ScrollVertButtonT );
	    m_ScrollVertButtonT = 0;
	    XDestroyWindow( pDis, m_ScrollVertButtonB );
	    XUnlockDisplay(pDis);
	    m_ScrollVertButtonB = 0;
	}

	m_ptScrollVertPosT.x = m_ptScrollVertPosT.y = 0;
	m_ptScrollVertPosB.x = m_ptScrollVertPosB.y = 0;
	m_ptScrollHorizPosR.x = m_ptScrollHorizPosR.y = 0;
	m_ptScrollHorizPosL.x = m_ptScrollHorizPosL.y = 0;
    }
}

void CHXUnixSite::_DrawArrows()
{
   //only do the work if our site is visible.
   if( !IsSiteVisible() )
      return;
    
    //Draw an arrow on this window.
   XPoint points[4];
   int offset = SCROLL_BAR_WIDTH/10;
   GC tmpGC;
   XGCValues values;
   Display* dis = (Display*)GetWindow()->display;

   if( m_ScrollVertButtonB )
   {