src/gtk/cursor.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        src/gtk/cursor.cpp
// Purpose:
// Author:      Robert Roebling
// Id:          $Id$
// Copyright:   (c) 1998 Robert Roebling
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

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

#include "wx/cursor.h"

#ifndef WX_PRECOMP
    #include "wx/window.h"
    #include "wx/app.h"
    #include "wx/image.h"
    #include "wx/bitmap.h"
#endif // WX_PRECOMP

#include <gtk/gtk.h>

//-----------------------------------------------------------------------------
// wxCursor
//-----------------------------------------------------------------------------

class wxCursorRefData: public wxGDIRefData
{
public:
    wxCursorRefData();
    virtual ~wxCursorRefData();

    virtual bool IsOk() const { return m_cursor != NULL; }

    GdkCursor *m_cursor;
};

wxCursorRefData::wxCursorRefData()
{
    m_cursor = (GdkCursor *) NULL;
}

wxCursorRefData::~wxCursorRefData()
{
    if (m_cursor) gdk_cursor_unref( m_cursor );
}

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

#define M_CURSORDATA wx_static_cast(wxCursorRefData*, m_refData)

IMPLEMENT_DYNAMIC_CLASS(wxCursor, wxGDIObject)

wxCursor::wxCursor()
{
}

wxCursor::wxCursor( int cursorId )
{
    m_refData = new wxCursorRefData();

    GdkCursorType gdk_cur = GDK_LEFT_PTR;
    switch (cursorId)
    {
        case wxCURSOR_BLANK:
            {
                const char bits[] = { 0 };
                const GdkColor color = { 0, 0, 0, 0 };

                GdkPixmap *pixmap = gdk_bitmap_create_from_data(NULL, bits, 1, 1);
                M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap(pixmap,
                                                                    pixmap,
                                                                    &color,
                                                                    &color,
                                                                    0, 0);
                g_object_unref(pixmap);
            }
            return;

        case wxCURSOR_ARROW:            // fall through to default
        case wxCURSOR_DEFAULT:          gdk_cur = GDK_LEFT_PTR; break;
        case wxCURSOR_RIGHT_ARROW:      gdk_cur = GDK_RIGHT_PTR; break;
        case wxCURSOR_HAND:             gdk_cur = GDK_HAND2; break;
        case wxCURSOR_CROSS:            gdk_cur = GDK_CROSSHAIR; break;
        case wxCURSOR_SIZEWE:           gdk_cur = GDK_SB_H_DOUBLE_ARROW; break;
        case wxCURSOR_SIZENS:           gdk_cur = GDK_SB_V_DOUBLE_ARROW; break;
        case wxCURSOR_ARROWWAIT:
        case wxCURSOR_WAIT:
        case wxCURSOR_WATCH:            gdk_cur = GDK_WATCH; break;
        case wxCURSOR_SIZING:           gdk_cur = GDK_SIZING; break;
        case wxCURSOR_SPRAYCAN:         gdk_cur = GDK_SPRAYCAN; break;
        case wxCURSOR_IBEAM:            gdk_cur = GDK_XTERM; break;
        case wxCURSOR_PENCIL:           gdk_cur = GDK_PENCIL; break;
        case wxCURSOR_NO_ENTRY:         gdk_cur = GDK_PIRATE; break;
        case wxCURSOR_SIZENWSE:
        case wxCURSOR_SIZENESW:         gdk_cur = GDK_FLEUR; break;
        case wxCURSOR_QUESTION_ARROW:   gdk_cur = GDK_QUESTION_ARROW; break;
        case wxCURSOR_PAINT_BRUSH:      gdk_cur = GDK_SPRAYCAN; break;
        case wxCURSOR_MAGNIFIER:        gdk_cur = GDK_PLUS; break;
        case wxCURSOR_CHAR:             gdk_cur = GDK_XTERM; break;
        case wxCURSOR_LEFT_BUTTON:      gdk_cur = GDK_LEFTBUTTON; break;
        case wxCURSOR_MIDDLE_BUTTON:    gdk_cur = GDK_MIDDLEBUTTON; break;
        case wxCURSOR_RIGHT_BUTTON:     gdk_cur = GDK_RIGHTBUTTON; break;
        case wxCURSOR_BULLSEYE:         gdk_cur = GDK_TARGET; break;

        case wxCURSOR_POINT_LEFT:       gdk_cur = GDK_SB_LEFT_ARROW; break;
        case wxCURSOR_POINT_RIGHT:      gdk_cur = GDK_SB_RIGHT_ARROW; break;
/*
        case wxCURSOR_DOUBLE_ARROW:     gdk_cur = GDK_DOUBLE_ARROW; break;
        case wxCURSOR_CROSS_REVERSE:    gdk_cur = GDK_CROSS_REVERSE; break;
        case wxCURSOR_BASED_ARROW_UP:   gdk_cur = GDK_BASED_ARROW_UP; break;
        case wxCURSOR_BASED_ARROW_DOWN: gdk_cur = GDK_BASED_ARROW_DOWN; break;
*/

        default:
            wxFAIL_MSG(wxT("unsupported cursor type"));
            // will use the standard one
            break;
    }

    M_CURSORDATA->m_cursor = gdk_cursor_new( gdk_cur );
}

extern GtkWidget *wxGetRootWindow();

wxCursor::wxCursor(const char bits[], int width, int  height,
                   int hotSpotX, int hotSpotY,
                   const char maskBits[], const wxColour *fg, const wxColour *bg)
{
    if (!maskBits)
        maskBits = bits;
    if (!fg)
        fg = wxBLACK;
    if (!bg)
        bg = wxWHITE;
    if (hotSpotX < 0 || hotSpotX >= width)
        hotSpotX = 0;
    if (hotSpotY < 0 || hotSpotY >= height)
        hotSpotY = 0;

    GdkBitmap *data = gdk_bitmap_create_from_data( wxGetRootWindow()->window, (gchar *) bits, width, height );
    GdkBitmap *mask = gdk_bitmap_create_from_data( wxGetRootWindow()->window, (gchar *) maskBits, width, height);

    m_refData = new wxCursorRefData;
    M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap(
                 data, mask, fg->GetColor(), bg->GetColor(),
                 hotSpotX, hotSpotY );

    g_object_unref (data);
    g_object_unref (mask);
}

#if wxUSE_IMAGE

static void GetHotSpot(const wxImage& image, int& x, int& y)
{
    if (image.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_X))
        x = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_X);
    else
        x = 0;

    if (image.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_Y))
        y = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_Y);
    else
        y = 0;

    if (x < 0 || x >= image.GetWidth())
        x = 0;
    if (y < 0 || y >= image.GetHeight())
        y = 0;
}

wxCursor::wxCursor( const wxImage & image )
{
    int w = image.GetWidth() ;
    int h = image.GetHeight();
    bool bHasMask = image.HasMask();
    int hotSpotX, hotSpotY;
    GetHotSpot(image, hotSpotX, hotSpotY);
    m_refData = new wxCursorRefData;
    wxImage image_copy(image);

    GdkDisplay* display = gdk_drawable_get_display(wxGetRootWindow()->window);
    if (gdk_display_supports_cursor_color(display))
    {
        if (!image.HasAlpha())
        {
            // add alpha, so wxBitmap will convert to pixbuf format
            image_copy.InitAlpha();
        }
        wxBitmap bitmap(image_copy);
        wxASSERT(bitmap.HasPixbuf());
        M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixbuf
                             (
                              display,
                              bitmap.GetPixbuf(),
                              hotSpotX, hotSpotY
                             );
        return;
    }

    unsigned long keyMaskColor = 0;
    GdkPixmap* mask;
    if (bHasMask)
    {
        keyMaskColor = wxImageHistogram::MakeKey(
            image.GetMaskRed(), image.GetMaskGreen(), image.GetMaskBlue());
        // get mask before image is modified
        wxBitmap bitmap(image, 1);
        mask = bitmap.GetMask()->GetBitmap();
        g_object_ref(mask);
    }
    else
    {
        const int size = ((w + 7) / 8) * h;
        char* bits = new char[size];
        memset(bits, 0xff, size);
        mask = gdk_bitmap_create_from_data(
            wxGetRootWindow()->window, bits, w, h);
        delete[] bits;
    }

    // modify image so wxBitmap can be used to convert to pixmap
    image_copy.SetMask(false);
    int i, j;
    wxByte* data = image_copy.GetData();
    for (j = 0; j < h; j++)
    {
        for (i = 0; i < w; i++, data += 3)
        {
            //if average value is > mid grey
            if (int(data[0]) + data[1] + data[2] >= 3 * 128)
            {
                // wxBitmap only converts (255,255,255) to white
                data[0] = 255;
                data[1] = 255;
                data[2] = 255;
            }
        }
    }
    wxBitmap bitmap(image_copy, 1);

    // find the most frequent color(s)
    wxImageHistogram histogram;
    image.ComputeHistogram(histogram);

    long colMostFreq = 0;
    unsigned long nMost = 0;
    long colNextMostFreq = 0;
    unsigned long nNext = 0;
    for ( wxImageHistogram::iterator entry = histogram.begin();
          entry != histogram.end();
          ++entry )
    {
        unsigned long key = entry->first;
        if ( !bHasMask || (key != keyMaskColor) )
        {
            unsigned long value = entry->second.value;
            if (value > nMost)
            {
                nNext = nMost;
                colNextMostFreq = colMostFreq;
                nMost = value;
                colMostFreq = key;
            }
            else if (value > nNext)
            {
                nNext = value;
                colNextMostFreq = key;
            }
        }
    }

    wxColour fg = wxColour ( (unsigned char)(colMostFreq >> 16),
                             (unsigned char)(colMostFreq >> 8),
                             (unsigned char)(colMostFreq) );

    wxColour bg = wxColour ( (unsigned char)(colNextMostFreq >> 16),
                             (unsigned char)(colNextMostFreq >> 8),
                             (unsigned char)(colNextMostFreq) );

    int fg_intensity = fg.Red() + fg.Green() + fg.Blue();
    int bg_intensity = bg.Red() + bg.Green() + bg.Blue();

    if (bg_intensity > fg_intensity)
    {
        //swap fg and bg
        wxColour tmp = fg;
        fg = bg;
        bg = tmp;
    }

    M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap
                             (
                                bitmap.GetPixmap(),
                                mask,
                                fg.GetColor(), bg.GetColor(),
                                hotSpotX, hotSpotY
                             );

    g_object_unref (mask);
}

#endif // wxUSE_IMAGE

wxCursor::~wxCursor()
{
}

GdkCursor *wxCursor::GetCursor() const
{
    return M_CURSORDATA->m_cursor;
}

wxGDIRefData *wxCursor::CreateGDIRefData() const
{
    return new wxCursorRefData;
}

wxGDIRefData *wxCursor::CloneGDIRefData(const wxGDIRefData *data) const
{
    return new wxCursorRefData(*wx_static_cast(const wxCursorRefData *, data));
}

//-----------------------------------------------------------------------------
// busy cursor routines
//-----------------------------------------------------------------------------

/* Current cursor, in order to hang on to
 * cursor handle when setting the cursor globally */
wxCursor g_globalCursor;

static wxCursor  gs_savedCursor;
static int       gs_busyCount = 0;

const wxCursor &wxBusyCursor::GetStoredCursor()
{
    return gs_savedCursor;
}

const wxCursor wxBusyCursor::GetBusyCursor()
{
    return wxCursor(wxCURSOR_WATCH);
}

static void InternalIdle(const wxWindowList& list, GdkDisplay*& display)
{
    wxWindowList::const_iterator i = list.begin();
    for (size_t n = list.size(); n--; ++i)
    {
        wxWindow* win = *i;
        if (display == NULL && win->m_widget && win->m_widget->window)
            display = gdk_drawable_get_display(win->m_widget->window);
        win->OnInternalIdle();
        InternalIdle(win->GetChildren(), display);
    }
}

void wxEndBusyCursor()
{
    if (--gs_busyCount > 0)
        return;

    g_globalCursor = gs_savedCursor;
    gs_savedCursor = wxNullCursor;
    GdkDisplay* unused = NULL;
    InternalIdle(wxTopLevelWindows, unused);
}

void wxBeginBusyCursor(const wxCursor* cursor)
{
    if (gs_busyCount++ > 0)
        return;

    wxASSERT_MSG( !gs_savedCursor.Ok(),
                  wxT("forgot to call wxEndBusyCursor, will leak memory") );

    gs_savedCursor = g_globalCursor;
    g_globalCursor = *cursor;
    GdkDisplay* display = NULL;
    InternalIdle(wxTopLevelWindows, display);
    if (display)
        gdk_display_flush(display);
}

bool wxIsBusy()
{
    return gs_busyCount > 0;
}

void wxSetCursor( const wxCursor& cursor )
{
    g_globalCursor = cursor;
    wxTheApp->WakeUpIdle();
}
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: src/gtk/cursor.cpp
	3	// Purpose:
	4	// Author: Robert Roebling
	5	// Id: $Id$
	6	// Copyright: (c) 1998 Robert Roebling
	7	// Licence: wxWindows licence
	8	/////////////////////////////////////////////////////////////////////////////
	9
	10	// For compilers that support precompilation, includes "wx.h".
	11	#include "wx/wxprec.h"
	12
	13	#include "wx/cursor.h"
	14
	15	#ifndef WX_PRECOMP
	16	#include "wx/window.h"
	17	#include "wx/app.h"
	18	#include "wx/image.h"
	19	#include "wx/bitmap.h"
	20	#endif // WX_PRECOMP
	21
	22	#include <gtk/gtk.h>
	23
	24	//-----------------------------------------------------------------------------
	25	// wxCursor
	26	//-----------------------------------------------------------------------------
	27
	28	class wxCursorRefData: public wxGDIRefData
	29	{
	30	public:
	31	wxCursorRefData();
	32	virtual ~wxCursorRefData();
	33
	34	virtual bool IsOk() const { return m_cursor != NULL; }
	35
	36	GdkCursor *m_cursor;
	37	};
	38
	39	wxCursorRefData::wxCursorRefData()
	40	{
	41	m_cursor = (GdkCursor *) NULL;
	42	}
	43
	44	wxCursorRefData::~wxCursorRefData()
	45	{
	46	if (m_cursor) gdk_cursor_unref( m_cursor );
	47	}
	48
	49	//-----------------------------------------------------------------------------
	50
	51	#define M_CURSORDATA wx_static_cast(wxCursorRefData*, m_refData)
	52
	53	IMPLEMENT_DYNAMIC_CLASS(wxCursor, wxGDIObject)
	54
	55	wxCursor::wxCursor()
	56	{
	57	}
	58
	59	wxCursor::wxCursor( int cursorId )
	60	{
	61	m_refData = new wxCursorRefData();
	62
	63	GdkCursorType gdk_cur = GDK_LEFT_PTR;
	64	switch (cursorId)
	65	{
	66	case wxCURSOR_BLANK:
	67	{
	68	const char bits[] = { 0 };
	69	const GdkColor color = { 0, 0, 0, 0 };
	70
	71	GdkPixmap *pixmap = gdk_bitmap_create_from_data(NULL, bits, 1, 1);
	72	M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap(pixmap,
	73	pixmap,
	74	&color,
	75	&color,
	76	0, 0);
	77	g_object_unref(pixmap);
	78	}
	79	return;
	80
	81	case wxCURSOR_ARROW: // fall through to default
	82	case wxCURSOR_DEFAULT: gdk_cur = GDK_LEFT_PTR; break;
	83	case wxCURSOR_RIGHT_ARROW: gdk_cur = GDK_RIGHT_PTR; break;
	84	case wxCURSOR_HAND: gdk_cur = GDK_HAND2; break;
	85	case wxCURSOR_CROSS: gdk_cur = GDK_CROSSHAIR; break;
	86	case wxCURSOR_SIZEWE: gdk_cur = GDK_SB_H_DOUBLE_ARROW; break;
	87	case wxCURSOR_SIZENS: gdk_cur = GDK_SB_V_DOUBLE_ARROW; break;
	88	case wxCURSOR_ARROWWAIT:
	89	case wxCURSOR_WAIT:
	90	case wxCURSOR_WATCH: gdk_cur = GDK_WATCH; break;
	91	case wxCURSOR_SIZING: gdk_cur = GDK_SIZING; break;
	92	case wxCURSOR_SPRAYCAN: gdk_cur = GDK_SPRAYCAN; break;
	93	case wxCURSOR_IBEAM: gdk_cur = GDK_XTERM; break;
	94	case wxCURSOR_PENCIL: gdk_cur = GDK_PENCIL; break;
	95	case wxCURSOR_NO_ENTRY: gdk_cur = GDK_PIRATE; break;
	96	case wxCURSOR_SIZENWSE:
	97	case wxCURSOR_SIZENESW: gdk_cur = GDK_FLEUR; break;
	98	case wxCURSOR_QUESTION_ARROW: gdk_cur = GDK_QUESTION_ARROW; break;
	99	case wxCURSOR_PAINT_BRUSH: gdk_cur = GDK_SPRAYCAN; break;
	100	case wxCURSOR_MAGNIFIER: gdk_cur = GDK_PLUS; break;
	101	case wxCURSOR_CHAR: gdk_cur = GDK_XTERM; break;
	102	case wxCURSOR_LEFT_BUTTON: gdk_cur = GDK_LEFTBUTTON; break;
	103	case wxCURSOR_MIDDLE_BUTTON: gdk_cur = GDK_MIDDLEBUTTON; break;
	104	case wxCURSOR_RIGHT_BUTTON: gdk_cur = GDK_RIGHTBUTTON; break;
	105	case wxCURSOR_BULLSEYE: gdk_cur = GDK_TARGET; break;
	106
	107	case wxCURSOR_POINT_LEFT: gdk_cur = GDK_SB_LEFT_ARROW; break;
	108	case wxCURSOR_POINT_RIGHT: gdk_cur = GDK_SB_RIGHT_ARROW; break;
	109	/*
	110	case wxCURSOR_DOUBLE_ARROW: gdk_cur = GDK_DOUBLE_ARROW; break;
	111	case wxCURSOR_CROSS_REVERSE: gdk_cur = GDK_CROSS_REVERSE; break;
	112	case wxCURSOR_BASED_ARROW_UP: gdk_cur = GDK_BASED_ARROW_UP; break;
	113	case wxCURSOR_BASED_ARROW_DOWN: gdk_cur = GDK_BASED_ARROW_DOWN; break;
	114	*/
	115
	116	default:
	117	wxFAIL_MSG(wxT("unsupported cursor type"));
	118	// will use the standard one
	119	break;
	120	}
	121
	122	M_CURSORDATA->m_cursor = gdk_cursor_new( gdk_cur );
	123	}
	124
	125	extern GtkWidget *wxGetRootWindow();
	126
	127	wxCursor::wxCursor(const char bits[], int width, int height,
	128	int hotSpotX, int hotSpotY,
	129	const char maskBits[], const wxColour fg, const wxColour bg)
	130	{
	131	if (!maskBits)
	132	maskBits = bits;
	133	if (!fg)
	134	fg = wxBLACK;
	135	if (!bg)
	136	bg = wxWHITE;
	137	if (hotSpotX < 0 \|\| hotSpotX >= width)
	138	hotSpotX = 0;
	139	if (hotSpotY < 0 \|\| hotSpotY >= height)
	140	hotSpotY = 0;
	141
	142	GdkBitmap data = gdk_bitmap_create_from_data( wxGetRootWindow()->window, (gchar ) bits, width, height );
	143	GdkBitmap mask = gdk_bitmap_create_from_data( wxGetRootWindow()->window, (gchar ) maskBits, width, height);
	144
	145	m_refData = new wxCursorRefData;
	146	M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap(
	147	data, mask, fg->GetColor(), bg->GetColor(),
	148	hotSpotX, hotSpotY );
	149
	150	g_object_unref (data);
	151	g_object_unref (mask);
	152	}
	153
	154	#if wxUSE_IMAGE
	155
	156	static void GetHotSpot(const wxImage& image, int& x, int& y)
	157	{
	158	if (image.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_X))
	159	x = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_X);
	160	else
	161	x = 0;
	162
	163	if (image.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_Y))
	164	y = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_Y);
	165	else
	166	y = 0;
	167
	168	if (x < 0 \|\| x >= image.GetWidth())
	169	x = 0;
	170	if (y < 0 \|\| y >= image.GetHeight())
	171	y = 0;
	172	}
	173
	174	wxCursor::wxCursor( const wxImage & image )
	175	{
	176	int w = image.GetWidth() ;
	177	int h = image.GetHeight();
	178	bool bHasMask = image.HasMask();
	179	int hotSpotX, hotSpotY;
	180	GetHotSpot(image, hotSpotX, hotSpotY);
	181	m_refData = new wxCursorRefData;
	182	wxImage image_copy(image);
	183
	184	GdkDisplay* display = gdk_drawable_get_display(wxGetRootWindow()->window);
	185	if (gdk_display_supports_cursor_color(display))
	186	{
	187	if (!image.HasAlpha())
	188	{
	189	// add alpha, so wxBitmap will convert to pixbuf format
	190	image_copy.InitAlpha();
	191	}
	192	wxBitmap bitmap(image_copy);
	193	wxASSERT(bitmap.HasPixbuf());
	194	M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixbuf
	195	(
	196	display,
	197	bitmap.GetPixbuf(),
	198	hotSpotX, hotSpotY
	199	);
	200	return;
	201	}
	202
	203	unsigned long keyMaskColor = 0;
	204	GdkPixmap* mask;
	205	if (bHasMask)
	206	{
	207	keyMaskColor = wxImageHistogram::MakeKey(
	208	image.GetMaskRed(), image.GetMaskGreen(), image.GetMaskBlue());
	209	// get mask before image is modified
	210	wxBitmap bitmap(image, 1);
	211	mask = bitmap.GetMask()->GetBitmap();
	212	g_object_ref(mask);
	213	}
	214	else
	215	{
	216	const int size = ((w + 7) / 8) * h;
	217	char* bits = new char[size];
	218	memset(bits, 0xff, size);
	219	mask = gdk_bitmap_create_from_data(
	220	wxGetRootWindow()->window, bits, w, h);
	221	delete[] bits;
	222	}
	223
	224	// modify image so wxBitmap can be used to convert to pixmap
	225	image_copy.SetMask(false);
	226	int i, j;
	227	wxByte* data = image_copy.GetData();
	228	for (j = 0; j < h; j++)
	229	{
	230	for (i = 0; i < w; i++, data += 3)
	231	{
	232	//if average value is > mid grey
	233	if (int(data[0]) + data[1] + data[2] >= 3 * 128)
	234	{
	235	// wxBitmap only converts (255,255,255) to white
	236	data[0] = 255;
	237	data[1] = 255;
	238	data[2] = 255;
	239	}
	240	}
	241	}
	242	wxBitmap bitmap(image_copy, 1);
	243
	244	// find the most frequent color(s)
	245	wxImageHistogram histogram;
	246	image.ComputeHistogram(histogram);
	247
	248	long colMostFreq = 0;
	249	unsigned long nMost = 0;
	250	long colNextMostFreq = 0;
	251	unsigned long nNext = 0;
	252	for ( wxImageHistogram::iterator entry = histogram.begin();
	253	entry != histogram.end();
	254	++entry )
	255	{
	256	unsigned long key = entry->first;
	257	if ( !bHasMask \|\| (key != keyMaskColor) )
	258	{
	259	unsigned long value = entry->second.value;
	260	if (value > nMost)
	261	{
	262	nNext = nMost;
	263	colNextMostFreq = colMostFreq;
	264	nMost = value;
	265	colMostFreq = key;
	266	}
	267	else if (value > nNext)
	268	{
	269	nNext = value;
	270	colNextMostFreq = key;
	271	}
	272	}
	273	}
	274
	275	wxColour fg = wxColour ( (unsigned char)(colMostFreq >> 16),
	276	(unsigned char)(colMostFreq >> 8),
	277	(unsigned char)(colMostFreq) );
	278
	279	wxColour bg = wxColour ( (unsigned char)(colNextMostFreq >> 16),
	280	(unsigned char)(colNextMostFreq >> 8),
	281	(unsigned char)(colNextMostFreq) );
	282
	283	int fg_intensity = fg.Red() + fg.Green() + fg.Blue();
	284	int bg_intensity = bg.Red() + bg.Green() + bg.Blue();
	285
	286	if (bg_intensity > fg_intensity)
	287	{
	288	//swap fg and bg
	289	wxColour tmp = fg;
	290	fg = bg;
	291	bg = tmp;
	292	}
	293
	294	M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap
	295	(
	296	bitmap.GetPixmap(),
	297	mask,
	298	fg.GetColor(), bg.GetColor(),
	299	hotSpotX, hotSpotY
	300	);
	301
	302	g_object_unref (mask);
	303	}
	304
	305	#endif // wxUSE_IMAGE
	306
	307	wxCursor::~wxCursor()
	308	{
	309	}
	310
	311	GdkCursor *wxCursor::GetCursor() const
	312	{
	313	return M_CURSORDATA->m_cursor;
	314	}
	315
	316	wxGDIRefData *wxCursor::CreateGDIRefData() const
	317	{
	318	return new wxCursorRefData;
	319	}
	320
	321	wxGDIRefData wxCursor::CloneGDIRefData(const wxGDIRefData data) const
	322	{
	323	return new wxCursorRefData(wx_static_cast(const wxCursorRefData , data));
	324	}
	325
	326	//-----------------------------------------------------------------------------
	327	// busy cursor routines
	328	//-----------------------------------------------------------------------------
	329
	330	/* Current cursor, in order to hang on to
	331	* cursor handle when setting the cursor globally */
	332	wxCursor g_globalCursor;
	333
	334	static wxCursor gs_savedCursor;
	335	static int gs_busyCount = 0;
	336
	337	const wxCursor &wxBusyCursor::GetStoredCursor()
	338	{
	339	return gs_savedCursor;
	340	}
	341
	342	const wxCursor wxBusyCursor::GetBusyCursor()
	343	{
	344	return wxCursor(wxCURSOR_WATCH);
	345	}
	346
	347	static void InternalIdle(const wxWindowList& list, GdkDisplay*& display)
	348	{
	349	wxWindowList::const_iterator i = list.begin();
	350	for (size_t n = list.size(); n--; ++i)
	351	{
	352	wxWindow* win = *i;
	353	if (display == NULL && win->m_widget && win->m_widget->window)
	354	display = gdk_drawable_get_display(win->m_widget->window);
	355	win->OnInternalIdle();
	356	InternalIdle(win->GetChildren(), display);
	357	}
	358	}
	359
	360	void wxEndBusyCursor()
	361	{
	362	if (--gs_busyCount > 0)
	363	return;
	364
	365	g_globalCursor = gs_savedCursor;
	366	gs_savedCursor = wxNullCursor;
	367	GdkDisplay* unused = NULL;
	368	InternalIdle(wxTopLevelWindows, unused);
	369	}
	370
	371	void wxBeginBusyCursor(const wxCursor* cursor)
	372	{
	373	if (gs_busyCount++ > 0)
	374	return;
	375
	376	wxASSERT_MSG( !gs_savedCursor.Ok(),
	377	wxT("forgot to call wxEndBusyCursor, will leak memory") );
	378
	379	gs_savedCursor = g_globalCursor;
	380	g_globalCursor = *cursor;
	381	GdkDisplay* display = NULL;
	382	InternalIdle(wxTopLevelWindows, display);
	383	if (display)
	384	gdk_display_flush(display);
	385	}
	386
	387	bool wxIsBusy()
	388	{
	389	return gs_busyCount > 0;
	390	}
	391
	392	void wxSetCursor( const wxCursor& cursor )
	393	{
	394	g_globalCursor = cursor;
	395	wxTheApp->WakeUpIdle();
	396	}