src/unix/displayx11.cpp

///////////////////////////////////////////////////////////////////////////
// Name:        src/unix/displayx11.cpp
// Purpose:     Unix/X11 implementation of wxDisplay class
// Author:      Brian Victor, Vadim Zeitlin
// Modified by:
// Created:     12/05/02
// RCS-ID:      $Id$
// Copyright:   (c) wxWidgets team
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#if wxUSE_DISPLAY

#include "wx/display.h"

#ifndef WX_PRECOMP
    #include "wx/dynarray.h"
    #include "wx/gdicmn.h"
    #include "wx/string.h"
    #include "wx/utils.h"
    #include "wx/intl.h"
    #include "wx/log.h"
#endif /* WX_PRECOMP */

#include "wx/display_impl.h"

#ifdef __WXGTK20__
    #include <gdk/gdk.h>
    #include <gdk/gdkx.h>

    // define the struct with the same fields as XineramaScreenInfo (except for
    // screen number which we don't need) but which we can use without
    // including Xinerama headers
    struct ScreenInfo
    {
       short x_org;
       short y_org;
       short width;
       short height;
    };
#else // use raw Xinerama functions
    /* These must be included after the wx files.  Otherwise the Data macro in
     * Xlibint.h conflicts with a function declaration in wx/list.h.  */
    extern "C"
    {
        #include <X11/Xlib.h>
        #include <X11/Xlibint.h>

        #include <X11/extensions/Xinerama.h>
    }

    typedef XineramaScreenInfo ScreenInfo;
#endif // GTK+/Xinerama

// ----------------------------------------------------------------------------
// helper class storing information about all screens
// ----------------------------------------------------------------------------

// the base class provides access to ScreenInfo array, derived class
// initializes it using either GTK+ or Xinerama functions
class ScreensInfoBase
{
public:
    operator const ScreenInfo *() const { return m_screens; }

    unsigned GetCount() const { return static_cast<unsigned>(m_num); }

protected:
    ScreenInfo *m_screens;
    int m_num;
};

#ifdef __WXGTK20__

class ScreensInfo : public ScreensInfoBase
{
public:
    ScreensInfo()
    {
        GdkScreen * const screen = gdk_screen_get_default();

        m_num = gdk_screen_get_n_monitors(screen);
        m_screens = new ScreenInfo[m_num];
        for ( int i = 0; i < m_num; i++ )
        {
            GdkRectangle rect;
            gdk_screen_get_monitor_geometry(screen, i, &rect);
            m_screens[i].x_org = rect.x;
            m_screens[i].y_org = rect.y;
            m_screens[i].width = rect.width;
            m_screens[i].height = rect.height;
        }
    }

    ~ScreensInfo()
    {
        delete [] m_screens;
    }
};

#else // Xinerama

class ScreensInfo : public ScreensInfoBase
{
public:
    ScreensInfo()
    {
        m_screens = XineramaQueryScreens((Display *)wxGetDisplay(), &m_num);
    }

    ~ScreensInfo()
    {
        XFree(m_screens);
    }
};

#endif // GTK+/Xinerama

// ----------------------------------------------------------------------------
// display and display factory classes
// ----------------------------------------------------------------------------

class WXDLLEXPORT wxDisplayImplX11 : public wxDisplayImpl
{
public:
    wxDisplayImplX11(unsigned n, const ScreenInfo& info)
        : wxDisplayImpl(n),
          m_rect(info.x_org, info.y_org, info.width, info.height)
    {
    }

    virtual wxRect GetGeometry() const { return m_rect; }
    virtual wxRect GetClientArea() const
    {
        // we intentionally don't cache the result here because the client
        // display area may change (e.g. the user resized or hid a panel) and
        // we don't currently react to its changes
        return IsPrimary() ? wxGetClientDisplayRect() : m_rect;
    }

    virtual wxString GetName() const { return wxString(); }

    virtual wxArrayVideoModes GetModes(const wxVideoMode& mode) const;
    virtual wxVideoMode GetCurrentMode() const;
    virtual bool ChangeMode(const wxVideoMode& mode);

private:
    wxRect m_rect;
    int m_depth;

    wxDECLARE_NO_COPY_CLASS(wxDisplayImplX11);
};

class wxDisplayFactoryX11 : public wxDisplayFactory
{
public:
    wxDisplayFactoryX11() { }

    virtual wxDisplayImpl *CreateDisplay(unsigned n);
    virtual unsigned GetCount();
    virtual int GetFromPoint(const wxPoint& pt);

protected:
    wxDECLARE_NO_COPY_CLASS(wxDisplayFactoryX11);
};

// ============================================================================
// wxDisplayFactoryX11 implementation
// ============================================================================

unsigned wxDisplayFactoryX11::GetCount()
{
    return ScreensInfo().GetCount();
}

int wxDisplayFactoryX11::GetFromPoint(const wxPoint& p)
{
    ScreensInfo screens;

    const unsigned numscreens(screens.GetCount());
    for ( unsigned i = 0; i < numscreens; ++i )
    {
        const ScreenInfo& s = screens[i];
        if ( p.x >= s.x_org && p.x < s.x_org + s.width &&
                p.y >= s.y_org && p.y < s.y_org + s.height )
        {
            return i;
        }
    }

    return wxNOT_FOUND;
}

wxDisplayImpl *wxDisplayFactoryX11::CreateDisplay(unsigned n)
{
    ScreensInfo screens;

    return n < screens.GetCount() ? new wxDisplayImplX11(n, screens[n]) : NULL;
}

// ============================================================================
// wxDisplayImplX11 implementation
// ============================================================================

#ifdef HAVE_X11_EXTENSIONS_XF86VMODE_H

#include <X11/extensions/xf86vmode.h>

//
//  See (http://www.xfree86.org/4.2.0/XF86VidModeDeleteModeLine.3.html) for more
//  info about xf86 video mode extensions
//

//free private data common to x (usually s3) servers
#define wxClearXVM(vm)  if(vm.privsize) XFree(vm.c_private)

// Correct res rate from GLFW
#define wxCRR2(v,dc) (int) (((1000.0f * (float) dc) /*PIXELS PER SECOND */) / ((float) v.htotal * v.vtotal /*PIXELS PER FRAME*/) + 0.5f)
#define wxCRR(v) wxCRR2(v,v.dotclock)
#define wxCVM2(v, dc) wxVideoMode(v.hdisplay, v.vdisplay, DefaultDepth((Display*)wxGetDisplay(), DefaultScreen((Display*)wxGetDisplay())), wxCRR2(v,dc))
#define wxCVM(v) wxCVM2(v, v.dotclock)

wxArrayVideoModes wxDisplayImplX11::GetModes(const wxVideoMode& mode) const
{
    //Convenience...
    Display* pDisplay = (Display*) wxGetDisplay(); //default display
    int nScreen = DefaultScreen(pDisplay); //default screen of (default) display...

    //Some variables..
    XF86VidModeModeInfo** ppXModes; //Enumerated Modes (Don't forget XFree() :))
    int nNumModes; //Number of modes enumerated....

    wxArrayVideoModes Modes; //modes to return...

    if (XF86VidModeGetAllModeLines(pDisplay, nScreen, &nNumModes, &ppXModes) == TRUE)
    {
        for (int i = 0; i < nNumModes; ++i)
        {
            if (mode == wxDefaultVideoMode || //According to display.h All modes valid if dafault mode...
                mode.Matches(wxCVM((*ppXModes[i]))) ) //...?
            {
                Modes.Add(wxCVM((*ppXModes[i])));
            }
            wxClearXVM((*ppXModes[i]));
        //  XFree(ppXModes[i]); //supposed to free?
        }
        XFree(ppXModes);
    }
    else //OOPS!
    {
        wxLogSysError(_("Failed to enumerate video modes"));
    }

    return Modes;
}

wxVideoMode wxDisplayImplX11::GetCurrentMode() const
{
  XF86VidModeModeLine VM;
  int nDotClock;
  XF86VidModeGetModeLine((Display*)wxGetDisplay(), DefaultScreen((Display*)wxGetDisplay()),
                         &nDotClock, &VM);
  wxClearXVM(VM);
  return wxCVM2(VM, nDotClock);
}

bool wxDisplayImplX11::ChangeMode(const wxVideoMode& mode)
{
    XF86VidModeModeInfo** ppXModes; //Enumerated Modes (Don't forget XFree() :))
    int nNumModes; //Number of modes enumerated....

    if( !XF86VidModeGetAllModeLines((Display*)wxGetDisplay(), DefaultScreen((Display*)wxGetDisplay()), &nNumModes, &ppXModes) )
    {
        wxLogSysError(_("Failed to change video mode"));
        return false;
    }

    bool bRet = false;
    if (mode == wxDefaultVideoMode)
    {
        bRet = XF86VidModeSwitchToMode((Display*)wxGetDisplay(), DefaultScreen((Display*)wxGetDisplay()),
                     ppXModes[0]) == TRUE;

        for (int i = 0; i < nNumModes; ++i)
        {
            wxClearXVM((*ppXModes[i]));
        //  XFree(ppXModes[i]); //supposed to free?
        }
    }
    else
    {
        for (int i = 0; i < nNumModes; ++i)
        {
            if (!bRet &&
                ppXModes[i]->hdisplay == mode.GetWidth() &&
                ppXModes[i]->vdisplay == mode.GetHeight() &&
                wxCRR((*ppXModes[i])) == mode.GetRefresh())
            {
                //switch!
                bRet = XF86VidModeSwitchToMode((Display*)wxGetDisplay(), DefaultScreen((Display*)wxGetDisplay()),
                         ppXModes[i]) == TRUE;
            }
            wxClearXVM((*ppXModes[i]));
        //  XFree(ppXModes[i]); //supposed to free?
        }
    }

    XFree(ppXModes);

    return bRet;
}


#else // !HAVE_X11_EXTENSIONS_XF86VMODE_H

wxArrayVideoModes wxDisplayImplX11::GetModes(const wxVideoMode& modeMatch) const
{
    int count_return;
    int* depths = XListDepths((Display*)wxGetDisplay(), 0, &count_return);
    wxArrayVideoModes modes;
    if ( depths )
    {
        for ( int x = 0; x < count_return; ++x )
        {
            wxVideoMode mode(m_rect.GetWidth(), m_rect.GetHeight(), depths[x]);
            if ( mode.Matches(modeMatch) )
            {
                modes.Add(modeMatch);
            }
        }

        XFree(depths);
    }
    return modes;
}

wxVideoMode wxDisplayImplX11::GetCurrentMode() const
{
    // Not implemented
    return wxVideoMode();
}

bool wxDisplayImplX11::ChangeMode(const wxVideoMode& WXUNUSED(mode))
{
    // Not implemented
    return false;
}

#endif // !HAVE_X11_EXTENSIONS_XF86VMODE_H

// ============================================================================
// wxDisplay::CreateFactory()
// ============================================================================

/* static */ wxDisplayFactory *wxDisplay::CreateFactory()
{
    // GTK+ screen functions are always available, no need to check for them
#ifndef __WXGTK20__
    if ( !XineramaIsActive((Display*)wxGetDisplay()) )
        return new wxDisplayFactorySingle;
#endif

    return new wxDisplayFactoryX11;
}

#endif /* wxUSE_DISPLAY */

#include "wx/utils.h"

#if wxUSE_LIBHILDON || wxUSE_LIBHILDON2 || !defined(GDK_WINDOWING_X11)

void wxClientDisplayRect(int *x, int *y, int *width, int *height)
{
    // TODO: don't hardcode display size
    if ( x )
        *x = 0;
    if ( y )
        *y = 0;
    if ( width )
        *width = 672;
    if ( height )
        *height = 396;
}

#else // !wxUSE_LIBHILDON || !wxUSE_LIBHILDON2

#include "wx/log.h"

#include <X11/Xlib.h>
#include <X11/Xatom.h>

// TODO: make this a full-fledged class and move to a public header
class wxX11Ptr
{
public:
    wxX11Ptr(void *ptr = NULL) : m_ptr(ptr) { }
    ~wxX11Ptr() { if ( m_ptr ) XFree(m_ptr); }

private:
    void *m_ptr;

    wxDECLARE_NO_COPY_CLASS(wxX11Ptr);
};

// NB: this function is implemented using X11 and not GDK calls as it's shared
//     by wxGTK[12], wxX11 and wxMotif ports
void wxClientDisplayRect(int *x, int *y, int *width, int *height)
{
    Display * const dpy = wxGetX11Display();
    wxCHECK_RET( dpy, wxT("can't be called before initializing the GUI") );

    wxRect rectClient;

    const Atom atomWorkArea = XInternAtom(dpy, "_NET_WORKAREA", True);
    if ( atomWorkArea )
    {
        long *workareas = NULL;
        unsigned long numItems;
        unsigned long bytesRemaining;
        Atom actualType;
        int format;

        if ( XGetWindowProperty
             (
                dpy,
                XDefaultRootWindow(dpy),
                atomWorkArea,
                0,                          // offset of data to retrieve
                4,                          // number of items to retrieve
                False,                      // don't delete property
                XA_CARDINAL,                // type of the items to get
                &actualType,
                &format,
                &numItems,
                &bytesRemaining,
                (unsigned char **)&workareas
             ) == Success && workareas )
        {
            wxX11Ptr x11ptr(workareas); // ensure it will be freed

            // check that we retrieved the property of the expected type and
            // that we did get back 4 longs (32 is the format for long), as
            // requested
            if ( actualType != XA_CARDINAL ||
                    format != 32 ||
                        numItems != 4 )
            {
                wxLogDebug(wxT("XGetWindowProperty(\"_NET_WORKAREA\") failed"));
            }
            else
            {
                rectClient = wxRect(workareas[0], workareas[1],
                                    workareas[2], workareas[3]);
            }
        }
    }

    // Although _NET_WORKAREA is supposed to return the client size of the
    // screen, not all implementations are conforming, apparently, see #14419,
    // so make sure we return a subset of the primary display.
    wxRect rectFull;
#if wxUSE_DISPLAY
    ScreensInfo screens;
    const ScreenInfo& info = screens[0];
    rectFull = wxRect(info.x_org, info.y_org, info.width, info.height);
#else
    wxDisplaySize(&rectFull.width, &rectFull.height);
#endif

    if ( !rectClient.width || !rectClient.height )
    {
        // _NET_WORKAREA not available or didn't work, fall back to the total
        // display size.
        rectClient = rectFull;
    }
    else
    {
        rectClient = rectClient.Intersect(rectFull);
    }

    if ( x )
        *x = rectClient.x;
    if ( y )
        *y = rectClient.y;
    if ( width )
        *width = rectClient.width;
    if ( height )
        *height = rectClient.height;
}

#endif // wxUSE_LIBHILDON/!wxUSE_LIBHILDON
Commit	Line	Data
	1	///////////////////////////////////////////////////////////////////////////
	2	// Name: src/unix/displayx11.cpp
	3	// Purpose: Unix/X11 implementation of wxDisplay class
	4	// Author: Brian Victor, Vadim Zeitlin
	5	// Modified by:
	6	// Created: 12/05/02
	7	// RCS-ID: $Id$
	8	// Copyright: (c) wxWidgets team
	9	// Licence: wxWindows licence
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	// ============================================================================
	13	// declarations
	14	// ============================================================================
	15
	16	// ----------------------------------------------------------------------------
	17	// headers
	18	// ----------------------------------------------------------------------------
	19
	20	// For compilers that support precompilation, includes "wx.h".
	21	#include "wx/wxprec.h"
	22
	23	#ifdef __BORLANDC__
	24	#pragma hdrstop
	25	#endif
	26
	27	#if wxUSE_DISPLAY
	28
	29	#include "wx/display.h"
	30
	31	#ifndef WX_PRECOMP
	32	#include "wx/dynarray.h"
	33	#include "wx/gdicmn.h"
	34	#include "wx/string.h"
	35	#include "wx/utils.h"
	36	#include "wx/intl.h"
	37	#include "wx/log.h"
	38	#endif /* WX_PRECOMP */
	39
	40	#include "wx/display_impl.h"
	41
	42	#ifdef __WXGTK20__
	43	#include <gdk/gdk.h>
	44	#include <gdk/gdkx.h>
	45
	46	// define the struct with the same fields as XineramaScreenInfo (except for
	47	// screen number which we don't need) but which we can use without
	48	// including Xinerama headers
	49	struct ScreenInfo
	50	{
	51	short x_org;
	52	short y_org;
	53	short width;
	54	short height;
	55	};
	56	#else // use raw Xinerama functions
	57	/* These must be included after the wx files. Otherwise the Data macro in
	58	* Xlibint.h conflicts with a function declaration in wx/list.h. */
	59	extern "C"
	60	{
	61	#include <X11/Xlib.h>
	62	#include <X11/Xlibint.h>
	63
	64	#include <X11/extensions/Xinerama.h>
	65	}
	66
	67	typedef XineramaScreenInfo ScreenInfo;
	68	#endif // GTK+/Xinerama
	69
	70	// ----------------------------------------------------------------------------
	71	// helper class storing information about all screens
	72	// ----------------------------------------------------------------------------
	73
	74	// the base class provides access to ScreenInfo array, derived class
	75	// initializes it using either GTK+ or Xinerama functions
	76	class ScreensInfoBase
	77	{
	78	public:
	79	operator const ScreenInfo *() const { return m_screens; }
	80
	81	unsigned GetCount() const { return static_cast<unsigned>(m_num); }
	82
	83	protected:
	84	ScreenInfo *m_screens;
	85	int m_num;
	86	};
	87
	88	#ifdef __WXGTK20__
	89
	90	class ScreensInfo : public ScreensInfoBase
	91	{
	92	public:
	93	ScreensInfo()
	94	{
	95	GdkScreen * const screen = gdk_screen_get_default();
	96
	97	m_num = gdk_screen_get_n_monitors(screen);
	98	m_screens = new ScreenInfo[m_num];
	99	for ( int i = 0; i < m_num; i++ )
	100	{
	101	GdkRectangle rect;
	102	gdk_screen_get_monitor_geometry(screen, i, &rect);
	103	m_screens[i].x_org = rect.x;
	104	m_screens[i].y_org = rect.y;
	105	m_screens[i].width = rect.width;
	106	m_screens[i].height = rect.height;
	107	}
	108	}
	109
	110	~ScreensInfo()
	111	{
	112	delete [] m_screens;
	113	}
	114	};
	115
	116	#else // Xinerama
	117
	118	class ScreensInfo : public ScreensInfoBase
	119	{
	120	public:
	121	ScreensInfo()
	122	{
	123	m_screens = XineramaQueryScreens((Display *)wxGetDisplay(), &m_num);
	124	}
	125
	126	~ScreensInfo()
	127	{
	128	XFree(m_screens);
	129	}
	130	};
	131
	132	#endif // GTK+/Xinerama
	133
	134	// ----------------------------------------------------------------------------
	135	// display and display factory classes
	136	// ----------------------------------------------------------------------------
	137
	138	class WXDLLEXPORT wxDisplayImplX11 : public wxDisplayImpl
	139	{
	140	public:
	141	wxDisplayImplX11(unsigned n, const ScreenInfo& info)
	142	: wxDisplayImpl(n),
	143	m_rect(info.x_org, info.y_org, info.width, info.height)
	144	{
	145	}
	146
	147	virtual wxRect GetGeometry() const { return m_rect; }
	148	virtual wxRect GetClientArea() const
	149	{
	150	// we intentionally don't cache the result here because the client
	151	// display area may change (e.g. the user resized or hid a panel) and
	152	// we don't currently react to its changes
	153	return IsPrimary() ? wxGetClientDisplayRect() : m_rect;
	154	}
	155
	156	virtual wxString GetName() const { return wxString(); }
	157
	158	virtual wxArrayVideoModes GetModes(const wxVideoMode& mode) const;
	159	virtual wxVideoMode GetCurrentMode() const;
	160	virtual bool ChangeMode(const wxVideoMode& mode);
	161
	162	private:
	163	wxRect m_rect;
	164	int m_depth;
	165
	166	wxDECLARE_NO_COPY_CLASS(wxDisplayImplX11);
	167	};
	168
	169	class wxDisplayFactoryX11 : public wxDisplayFactory
	170	{
	171	public:
	172	wxDisplayFactoryX11() { }
	173
	174	virtual wxDisplayImpl *CreateDisplay(unsigned n);
	175	virtual unsigned GetCount();
	176	virtual int GetFromPoint(const wxPoint& pt);
	177
	178	protected:
	179	wxDECLARE_NO_COPY_CLASS(wxDisplayFactoryX11);
	180	};
	181
	182	// ============================================================================
	183	// wxDisplayFactoryX11 implementation
	184	// ============================================================================
	185
	186	unsigned wxDisplayFactoryX11::GetCount()
	187	{
	188	return ScreensInfo().GetCount();
	189	}
	190
	191	int wxDisplayFactoryX11::GetFromPoint(const wxPoint& p)
	192	{
	193	ScreensInfo screens;
	194
	195	const unsigned numscreens(screens.GetCount());
	196	for ( unsigned i = 0; i < numscreens; ++i )
	197	{
	198	const ScreenInfo& s = screens[i];
	199	if ( p.x >= s.x_org && p.x < s.x_org + s.width &&
	200	p.y >= s.y_org && p.y < s.y_org + s.height )
	201	{
	202	return i;
	203	}
	204	}
	205
	206	return wxNOT_FOUND;
	207	}
	208
	209	wxDisplayImpl *wxDisplayFactoryX11::CreateDisplay(unsigned n)
	210	{
	211	ScreensInfo screens;
	212
	213	return n < screens.GetCount() ? new wxDisplayImplX11(n, screens[n]) : NULL;
	214	}
	215
	216	// ============================================================================
	217	// wxDisplayImplX11 implementation
	218	// ============================================================================
	219
	220	#ifdef HAVE_X11_EXTENSIONS_XF86VMODE_H
	221
	222	#include <X11/extensions/xf86vmode.h>
	223
	224	//
	225	// See (http://www.xfree86.org/4.2.0/XF86VidModeDeleteModeLine.3.html) for more
	226	// info about xf86 video mode extensions
	227	//
	228
	229	//free private data common to x (usually s3) servers
	230	#define wxClearXVM(vm) if(vm.privsize) XFree(vm.c_private)
	231
	232	// Correct res rate from GLFW
	233	#define wxCRR2(v,dc) (int) (((1000.0f * (float) dc) /PIXELS PER SECOND /) / ((float) v.htotal * v.vtotal /PIXELS PER FRAME/) + 0.5f)
	234	#define wxCRR(v) wxCRR2(v,v.dotclock)
	235	#define wxCVM2(v, dc) wxVideoMode(v.hdisplay, v.vdisplay, DefaultDepth((Display)wxGetDisplay(), DefaultScreen((Display)wxGetDisplay())), wxCRR2(v,dc))
	236	#define wxCVM(v) wxCVM2(v, v.dotclock)
	237
	238	wxArrayVideoModes wxDisplayImplX11::GetModes(const wxVideoMode& mode) const
	239	{
	240	//Convenience...
	241	Display* pDisplay = (Display*) wxGetDisplay(); //default display
	242	int nScreen = DefaultScreen(pDisplay); //default screen of (default) display...
	243
	244	//Some variables..
	245	XF86VidModeModeInfo** ppXModes; //Enumerated Modes (Don't forget XFree() :))
	246	int nNumModes; //Number of modes enumerated....
	247
	248	wxArrayVideoModes Modes; //modes to return...
	249
	250	if (XF86VidModeGetAllModeLines(pDisplay, nScreen, &nNumModes, &ppXModes) == TRUE)
	251	{
	252	for (int i = 0; i < nNumModes; ++i)
	253	{
	254	if (mode == wxDefaultVideoMode \|\| //According to display.h All modes valid if dafault mode...
	255	mode.Matches(wxCVM((*ppXModes[i]))) ) //...?
	256	{
	257	Modes.Add(wxCVM((*ppXModes[i])));
	258	}
	259	wxClearXVM((*ppXModes[i]));
	260	// XFree(ppXModes[i]); //supposed to free?
	261	}
	262	XFree(ppXModes);
	263	}
	264	else //OOPS!
	265	{
	266	wxLogSysError(_("Failed to enumerate video modes"));
	267	}
	268
	269	return Modes;
	270	}
	271
	272	wxVideoMode wxDisplayImplX11::GetCurrentMode() const
	273	{
	274	XF86VidModeModeLine VM;
	275	int nDotClock;
	276	XF86VidModeGetModeLine((Display)wxGetDisplay(), DefaultScreen((Display)wxGetDisplay()),
	277	&nDotClock, &VM);
	278	wxClearXVM(VM);
	279	return wxCVM2(VM, nDotClock);
	280	}
	281
	282	bool wxDisplayImplX11::ChangeMode(const wxVideoMode& mode)
	283	{
	284	XF86VidModeModeInfo** ppXModes; //Enumerated Modes (Don't forget XFree() :))
	285	int nNumModes; //Number of modes enumerated....
	286
	287	if( !XF86VidModeGetAllModeLines((Display)wxGetDisplay(), DefaultScreen((Display)wxGetDisplay()), &nNumModes, &ppXModes) )
	288	{
	289	wxLogSysError(_("Failed to change video mode"));
	290	return false;
	291	}
	292
	293	bool bRet = false;
	294	if (mode == wxDefaultVideoMode)
	295	{
	296	bRet = XF86VidModeSwitchToMode((Display)wxGetDisplay(), DefaultScreen((Display)wxGetDisplay()),
	297	ppXModes[0]) == TRUE;
	298
	299	for (int i = 0; i < nNumModes; ++i)
	300	{
	301	wxClearXVM((*ppXModes[i]));
	302	// XFree(ppXModes[i]); //supposed to free?
	303	}
	304	}
	305	else
	306	{
	307	for (int i = 0; i < nNumModes; ++i)
	308	{
	309	if (!bRet &&
	310	ppXModes[i]->hdisplay == mode.GetWidth() &&
	311	ppXModes[i]->vdisplay == mode.GetHeight() &&
	312	wxCRR((*ppXModes[i])) == mode.GetRefresh())
	313	{
	314	//switch!
	315	bRet = XF86VidModeSwitchToMode((Display)wxGetDisplay(), DefaultScreen((Display)wxGetDisplay()),
	316	ppXModes[i]) == TRUE;
	317	}
	318	wxClearXVM((*ppXModes[i]));
	319	// XFree(ppXModes[i]); //supposed to free?
	320	}
	321	}
	322
	323	XFree(ppXModes);
	324
	325	return bRet;
	326	}
	327
	328
	329	#else // !HAVE_X11_EXTENSIONS_XF86VMODE_H
	330
	331	wxArrayVideoModes wxDisplayImplX11::GetModes(const wxVideoMode& modeMatch) const
	332	{
	333	int count_return;
	334	int* depths = XListDepths((Display*)wxGetDisplay(), 0, &count_return);
	335	wxArrayVideoModes modes;
	336	if ( depths )
	337	{
	338	for ( int x = 0; x < count_return; ++x )
	339	{
	340	wxVideoMode mode(m_rect.GetWidth(), m_rect.GetHeight(), depths[x]);
	341	if ( mode.Matches(modeMatch) )
	342	{
	343	modes.Add(modeMatch);
	344	}
	345	}
	346
	347	XFree(depths);
	348	}
	349	return modes;
	350	}
	351
	352	wxVideoMode wxDisplayImplX11::GetCurrentMode() const
	353	{
	354	// Not implemented
	355	return wxVideoMode();
	356	}
	357
	358	bool wxDisplayImplX11::ChangeMode(const wxVideoMode& WXUNUSED(mode))
	359	{
	360	// Not implemented
	361	return false;
	362	}
	363
	364	#endif // !HAVE_X11_EXTENSIONS_XF86VMODE_H
	365
	366	// ============================================================================
	367	// wxDisplay::CreateFactory()
	368	// ============================================================================
	369
	370	/* static / wxDisplayFactory wxDisplay::CreateFactory()
	371	{
	372	// GTK+ screen functions are always available, no need to check for them
	373	#ifndef __WXGTK20__
	374	if ( !XineramaIsActive((Display*)wxGetDisplay()) )
	375	return new wxDisplayFactorySingle;
	376	#endif
	377
	378	return new wxDisplayFactoryX11;
	379	}
	380
	381	#endif /* wxUSE_DISPLAY */
	382
	383	#include "wx/utils.h"
	384
	385	#if wxUSE_LIBHILDON \|\| wxUSE_LIBHILDON2 \|\| !defined(GDK_WINDOWING_X11)
	386
	387	void wxClientDisplayRect(int x, int y, int width, int height)
	388	{
	389	// TODO: don't hardcode display size
	390	if ( x )
	391	*x = 0;
	392	if ( y )
	393	*y = 0;
	394	if ( width )
	395	*width = 672;
	396	if ( height )
	397	*height = 396;
	398	}
	399
	400	#else // !wxUSE_LIBHILDON \|\| !wxUSE_LIBHILDON2
	401
	402	#include "wx/log.h"
	403
	404	#include <X11/Xlib.h>
	405	#include <X11/Xatom.h>
	406
	407	// TODO: make this a full-fledged class and move to a public header
	408	class wxX11Ptr
	409	{
	410	public:
	411	wxX11Ptr(void *ptr = NULL) : m_ptr(ptr) { }
	412	~wxX11Ptr() { if ( m_ptr ) XFree(m_ptr); }
	413
	414	private:
	415	void *m_ptr;
	416
	417	wxDECLARE_NO_COPY_CLASS(wxX11Ptr);
	418	};
	419
	420	// NB: this function is implemented using X11 and not GDK calls as it's shared
	421	// by wxGTK[12], wxX11 and wxMotif ports
	422	void wxClientDisplayRect(int x, int y, int width, int height)
	423	{
	424	Display * const dpy = wxGetX11Display();
	425	wxCHECK_RET( dpy, wxT("can't be called before initializing the GUI") );
	426
	427	wxRect rectClient;
	428
	429	const Atom atomWorkArea = XInternAtom(dpy, "_NET_WORKAREA", True);
	430	if ( atomWorkArea )
	431	{
	432	long *workareas = NULL;
	433	unsigned long numItems;
	434	unsigned long bytesRemaining;
	435	Atom actualType;
	436	int format;
	437
	438	if ( XGetWindowProperty
	439	(
	440	dpy,
	441	XDefaultRootWindow(dpy),
	442	atomWorkArea,
	443	0, // offset of data to retrieve
	444	4, // number of items to retrieve
	445	False, // don't delete property
	446	XA_CARDINAL, // type of the items to get
	447	&actualType,
	448	&format,
	449	&numItems,
	450	&bytesRemaining,
	451	(unsigned char **)&workareas
	452	) == Success && workareas )
	453	{
	454	wxX11Ptr x11ptr(workareas); // ensure it will be freed
	455
	456	// check that we retrieved the property of the expected type and
	457	// that we did get back 4 longs (32 is the format for long), as
	458	// requested
	459	if ( actualType != XA_CARDINAL \|\|
	460	format != 32 \|\|
	461	numItems != 4 )
	462	{
	463	wxLogDebug(wxT("XGetWindowProperty(\"_NET_WORKAREA\") failed"));
	464	}
	465	else
	466	{
	467	rectClient = wxRect(workareas[0], workareas[1],
	468	workareas[2], workareas[3]);
	469	}
	470	}
	471	}
	472
	473	// Although _NET_WORKAREA is supposed to return the client size of the
	474	// screen, not all implementations are conforming, apparently, see #14419,
	475	// so make sure we return a subset of the primary display.
	476	wxRect rectFull;
	477	#if wxUSE_DISPLAY
	478	ScreensInfo screens;
	479	const ScreenInfo& info = screens[0];
	480	rectFull = wxRect(info.x_org, info.y_org, info.width, info.height);
	481	#else
	482	wxDisplaySize(&rectFull.width, &rectFull.height);
	483	#endif
	484
	485	if ( !rectClient.width \|\| !rectClient.height )
	486	{
	487	// _NET_WORKAREA not available or didn't work, fall back to the total
	488	// display size.
	489	rectClient = rectFull;
	490	}
	491	else
	492	{
	493	rectClient = rectClient.Intersect(rectFull);
	494	}
	495
	496	if ( x )
	497	*x = rectClient.x;
	498	if ( y )
	499	*y = rectClient.y;
	500	if ( width )
	501	*width = rectClient.width;
	502	if ( height )
	503	*height = rectClient.height;
	504	}
	505
	506	#endif // wxUSE_LIBHILDON/!wxUSE_LIBHILDON