src/motif/cursor.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        cursor.cpp
// Purpose:     wxCursor class
// Author:      Julian Smart
// Modified by:
// Created:     17/09/98
// RCS-ID:      $Id$
// Copyright:   (c) Julian Smart
// Licence:   	wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifdef __GNUG__
#pragma implementation "cursor.h"
#endif

#include "wx/cursor.h"
#include "wx/app.h"
#include "wx/utils.h"
#include "wx/list.h"
#include "wx/window.h"
#if wxUSE_IMAGE
#include "wx/image.h"
#endif

#ifdef __VMS__
#pragma message disable nosimpint
#endif
#include <Xm/Xm.h>
#include <X11/cursorfont.h>
#ifdef __VMS__
#pragma message enable nosimpint
#endif

#include "wx/motif/private.h"

// Cursor for one display, so we can choose the correct one for
// the current display.
class wxXCursor
{
public:
    WXDisplay*  m_display;
    WXCursor    m_cursor;
};

WX_DECLARE_LIST(wxXCursor, wxXCursorList);
#include "wx/listimpl.cpp"
WX_DEFINE_LIST(wxXCursorList);

class WXDLLEXPORT wxCursorRefData: public wxObjectRefData
{
    friend class WXDLLEXPORT wxCursor;
public:
    wxCursorRefData();
    ~wxCursorRefData();

    wxXCursorList m_cursors;  // wxXCursor objects, one per display
    wxStockCursor m_cursorId; // wxWindows standard cursor id
};

#define M_CURSORDATA ((wxCursorRefData *)m_refData)
#define M_CURSORHANDLERDATA ((wxCursorRefData *)bitmap->m_refData)

IMPLEMENT_DYNAMIC_CLASS(wxCursor, wxObject)

wxCursorRefData::wxCursorRefData()
{
    m_cursorId = wxCURSOR_NONE;
}

wxCursorRefData::~wxCursorRefData()
{
    wxXCursorList::Node* node = m_cursors.GetFirst();
    while (node)
    {
        wxXCursor* c = node->GetData();
        XFreeCursor((Display*) c->m_display, (Cursor) c->m_cursor);
        delete c;
        node = node->GetNext();
    }
}

wxCursor::wxCursor()
{
}

#if wxUSE_IMAGE
wxCursor::wxCursor(const wxImage & image)
{
    unsigned char * rgbBits = image.GetData();
    int w = image.GetWidth() ;
    int h = image.GetHeight();
    bool bHasMask = image.HasMask();
    int imagebitcount = (w*h)/8;

    unsigned char * bits = new unsigned char [imagebitcount];
    unsigned char * maskBits = new unsigned char [imagebitcount];

    int i, j, i8; unsigned char c, cMask;
    for (i=0; i<imagebitcount; i++)
    {
        bits[i] = 0xff;
        i8 = i * 8;

        cMask = 0xfe; // 11111110
        for (j=0; j<8; j++)
        {
            // possible overflow if we do the summation first ?
            c = rgbBits[(i8+j)*3]/3 + rgbBits[(i8+j)*3+1]/3 + rgbBits[(i8+j)*3+2]/3;
            //if average value is > mid grey
            if (c>127)
                bits[i] = bits[i] & cMask;
            cMask = (cMask << 1) | 1;
        }
    }

    if (bHasMask)
    {
        unsigned char
            r = image.GetMaskRed(),
            g = image.GetMaskGreen(),
            b = image.GetMaskBlue();

        for (i=0; i<imagebitcount; i++)
        {
            maskBits[i] = 0x0;
            i8 = i * 8;

            cMask = 0x1;
            for (j=0; j<8; j++)
            {
                if (rgbBits[(i8+j)*3] != r || rgbBits[(i8+j)*3+1] != g || rgbBits[(i8+j)*3+2] != b)
                    maskBits[i] = maskBits[i] | cMask;
                cMask = (cMask << 1);
            }
        }
    }
    else // no mask
    {
        for (i=0; i<imagebitcount; i++)
            maskBits[i] = 0xFF;
    }

    int hotSpotX;
    int hotSpotY;

    if (image.HasOption(wxCUR_HOTSPOT_X))
        hotSpotX = image.GetOptionInt(wxCUR_HOTSPOT_X);
    else
        hotSpotX = 0;

    if (image.HasOption(wxCUR_HOTSPOT_Y))
        hotSpotY = image.GetOptionInt(wxCUR_HOTSPOT_Y);
    else
        hotSpotY = 0;

    if (hotSpotX < 0 || hotSpotX >= w)
        hotSpotX = 0;
    if (hotSpotY < 0 || hotSpotY >= h)
        hotSpotY = 0;

    Create( (const char*)bits, w, h, hotSpotX, hotSpotY,
            (const char*)maskBits );

    delete[] bits;
    delete[] maskBits;
}
#endif

void wxCursor::Create(const char bits[], int width, int height,
                      int hotSpotX, int hotSpotY, const char maskBits[])
{
    if( !m_refData )
        m_refData = new wxCursorRefData;

    Display *dpy = (Display*) wxGetDisplay();
    int screen_num =  DefaultScreen (dpy);

    Pixmap pixmap = XCreatePixmapFromBitmapData (dpy,
                                          RootWindow (dpy, screen_num),
                                          (char*) bits, width, height,
                                          1 , 0 , 1);

    Pixmap mask_pixmap = None;
    if (maskBits != NULL)
    {
        mask_pixmap = XCreatePixmapFromBitmapData (dpy,
                                          RootWindow (dpy, screen_num),
                                          (char*) maskBits, width, height,
                                          1 , 0 , 1);
    }

    Create( (WXPixmap)pixmap, (WXPixmap)mask_pixmap, hotSpotX, hotSpotY );

    XFreePixmap( dpy, pixmap );
    if (mask_pixmap != None)
    {
        XFreePixmap( dpy, mask_pixmap );
    }
}

void wxCursor::Create(WXPixmap pixmap, WXPixmap mask_pixmap,
                      int hotSpotX, int hotSpotY)
{
    if( !m_refData )
        m_refData = new wxCursorRefData;

    Display *dpy = (Display*) wxGetDisplay();
    int screen_num =  DefaultScreen (dpy);

    XColor foreground_color;
    XColor background_color;
    foreground_color.pixel = BlackPixel(dpy, screen_num);
    background_color.pixel = WhitePixel(dpy, screen_num);
    Colormap cmap = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dpy);
    XQueryColor(dpy, cmap, &foreground_color);
    XQueryColor(dpy, cmap, &background_color);

    Cursor cursor = XCreatePixmapCursor (dpy,
                                  (Pixmap)pixmap,
                                  (Pixmap)mask_pixmap,
                                  &foreground_color,
                                  &background_color,
                                  hotSpotX ,
                                  hotSpotY);

    if (cursor)
    {
        wxXCursor *c = new wxXCursor;

        c->m_cursor = (WXCursor) cursor;
        c->m_display = (WXDisplay*) dpy;
        M_CURSORDATA->m_cursors.Append(c);
    }
}

wxCursor::wxCursor(const char bits[], int width, int height,
                   int hotSpotX, int hotSpotY, const char maskBits[])
{
    Create(bits, width, height, hotSpotX, hotSpotY, maskBits);
}

wxCursor::wxCursor(const wxString& name, long flags, int hotSpotX, int hotSpotY)
{
    // Must be an XBM file
    if (flags != wxBITMAP_TYPE_XBM)
        return;

    m_refData = new wxCursorRefData;

    int hotX = -1, hotY = -1;
    unsigned int w, h;
    Pixmap pixmap = None, mask_pixmap = None;

    Display *dpy = (Display*) wxGetDisplay();
    int screen_num =  DefaultScreen (dpy);

    int value = XReadBitmapFile (dpy, RootWindow (dpy, screen_num),
                                 wxConstCast(name.c_str(), char),
                                 &w, &h, &pixmap, &hotX, &hotY);

    if (value == BitmapSuccess)
    {
        // TODO: how do we determine whether hotX, hotY were read correctly?
        if (hotX < 0 || hotY < 0)
        {
            hotX = hotSpotX;
            hotY = hotSpotY;
        }
        if (hotX < 0 || hotY < 0)
        {
            hotX = 0;
            hotY = 0;
        }

        Create( (WXPixmap)pixmap, (WXPixmap)mask_pixmap, hotX, hotY );

        XFreePixmap( dpy, pixmap );
    }
}

// Cursors by stock number
wxCursor::wxCursor(wxStockCursor id)
{
    m_refData = new wxCursorRefData;
    M_CURSORDATA->m_cursorId = id;
}

wxCursor::~wxCursor()
{
}

bool wxCursor::Ok() const
{
    return m_refData != NULL;
}

// Motif-specific: create/get a cursor for the current display
WXCursor wxCursor::GetXCursor(WXDisplay* display)
{
    if (!M_CURSORDATA)
        return (WXCursor) 0;
    wxXCursorList::Node* node = M_CURSORDATA->m_cursors.GetFirst();
    while (node)
    {
        wxXCursor* c = node->GetData();
        if (c->m_display == display)
            return c->m_cursor;
        node = node->GetNext();
    }

    // No cursor for this display, so let's see if we're an id-type cursor.

    if (M_CURSORDATA->m_cursorId != wxCURSOR_NONE)
    {
        WXCursor cursor = MakeCursor(display, M_CURSORDATA->m_cursorId);
        if (cursor)
        {
            wxXCursor* c = new wxXCursor;
            c->m_cursor = cursor;
            c->m_display = display;
            M_CURSORDATA->m_cursors.Append(c);
            return cursor;
        }
        else
            return (WXCursor) 0;
    }

    // Not an id-type cursor, so we don't know how to create it.
    return (WXCursor) 0;
}

// Make a cursor from standard id
WXCursor wxCursor::MakeCursor(WXDisplay* display, wxStockCursor id)
{
    Display* dpy = (Display*) display;
    Cursor cursor = (Cursor) 0;
    int x_cur = -1;

    switch (id)
    {
    case wxCURSOR_WAIT:             x_cur = XC_watch; break;
    case wxCURSOR_CROSS:            x_cur = XC_crosshair; break;
    case wxCURSOR_CHAR:                       return (WXCursor)cursor; break;
    case wxCURSOR_HAND:             x_cur = XC_hand1; break;
    case wxCURSOR_BULLSEYE:         x_cur = XC_target; break;
    case wxCURSOR_PENCIL:           x_cur = XC_pencil; break;
    case wxCURSOR_MAGNIFIER:        x_cur = XC_sizing; break;
    case wxCURSOR_IBEAM:            x_cur = XC_xterm; break;
    case wxCURSOR_NO_ENTRY:         x_cur = XC_pirate; break;
    case wxCURSOR_LEFT_BUTTON:      x_cur = XC_leftbutton; break;
    case wxCURSOR_RIGHT_BUTTON:     x_cur = XC_rightbutton; break;
    case wxCURSOR_MIDDLE_BUTTON:    x_cur =  XC_middlebutton; break;
    case wxCURSOR_QUESTION_ARROW:   x_cur = XC_question_arrow; break;
    case wxCURSOR_SIZING:           x_cur = XC_sizing; break;
    case wxCURSOR_WATCH:            x_cur = XC_watch; break;
    case wxCURSOR_SPRAYCAN:         x_cur = XC_spraycan; break;
    case wxCURSOR_PAINT_BRUSH:      x_cur = XC_spraycan; break;
    case wxCURSOR_SIZENWSE:
    case wxCURSOR_SIZENESW:         x_cur = XC_crosshair; break;
    case wxCURSOR_SIZEWE:           x_cur = XC_sb_h_double_arrow; break;
    case wxCURSOR_SIZENS:           x_cur = XC_sb_v_double_arrow; break;
    case wxCURSOR_POINT_LEFT:       x_cur = XC_sb_left_arrow; break;
    case wxCURSOR_POINT_RIGHT:      x_cur = XC_sb_right_arrow; break;
        // (JD Huggins) added more stock cursors for X
        // X-only cursors BEGIN
    case wxCURSOR_CROSS_REVERSE:    x_cur = XC_cross_reverse; break;
    case wxCURSOR_DOUBLE_ARROW:     x_cur = XC_double_arrow; break;
    case wxCURSOR_BASED_ARROW_UP:   x_cur = XC_based_arrow_up; break;
    case wxCURSOR_BASED_ARROW_DOWN: x_cur = XC_based_arrow_down; break;
    case wxCURSOR_BLANK:
    {
        GC gc;
        XGCValues gcv;
        Pixmap empty_pixmap;
        XColor blank_color;

        empty_pixmap =
            XCreatePixmap (dpy, RootWindow (dpy, DefaultScreen (dpy)),
                           16, 16, 1);
        gcv.function = GXxor;
        gc = XCreateGC (dpy,
                        empty_pixmap,
                        GCFunction,
                        &gcv);
        XCopyArea (dpy,
                   empty_pixmap,
                   empty_pixmap,
                   gc,
                   0, 0,
                   16, 16,
                   0, 0);
        XFreeGC (dpy, gc);
        cursor = XCreatePixmapCursor (dpy,
                                      empty_pixmap,
                                      empty_pixmap,
                                      &blank_color,
                                      &blank_color,
                                      8, 8);

        break;
    }
    case wxCURSOR_ARROW:
    default:       x_cur =  XC_top_left_arrow; break;
    }

    if( x_cur == -1 )
        return (WXCursor)cursor;

    cursor = XCreateFontCursor (dpy, x_cur);
    return (WXCursor) cursor;
}

// Global cursor setting
void wxSetCursor(const wxCursor& WXUNUSED(cursor))
{
  // Nothing to do for Motif (no global cursor)
}


// ----------------------------------------------------------------------------
// busy cursor stuff
// ----------------------------------------------------------------------------

static int wxBusyCursorCount = 0;

// Helper function
static void
wxXSetBusyCursor (wxWindow * win, wxCursor * cursor)
{
    Display *display = (Display*) win->GetXDisplay();

    Window xwin = (Window) win->GetXWindow();
    if (!xwin)
       return;

    XSetWindowAttributes attrs;

    if (cursor)
    {
        attrs.cursor = (Cursor) cursor->GetXCursor(display);
    }
    else
    {
        // Restore old cursor
        if (win->GetCursor().Ok())
            attrs.cursor = (Cursor) win->GetCursor().GetXCursor(display);
        else
            attrs.cursor = None;
    }
    if (xwin)
        XChangeWindowAttributes (display, xwin, CWCursor, &attrs);

    XFlush (display);

    for(wxWindowList::Node *node = win->GetChildren().GetFirst (); node;
        node = node->GetNext())
    {
        wxWindow *child = node->GetData ();
        wxXSetBusyCursor (child, cursor);
    }
}

// Set the cursor to the busy cursor for all windows
void wxBeginBusyCursor(wxCursor *cursor)
{
    wxBusyCursorCount++;
    if (wxBusyCursorCount == 1)
    {
        for(wxWindowList::Node *node = wxTopLevelWindows.GetFirst (); node;
            node = node->GetNext())
        {
            wxWindow *win = node->GetData ();
            wxXSetBusyCursor (win, cursor);
        }
    }
}

// Restore cursor to normal
void wxEndBusyCursor()
{
    if (wxBusyCursorCount == 0)
        return;

    wxBusyCursorCount--;
    if (wxBusyCursorCount == 0)
    {
        for(wxWindowList::Node *node = wxTopLevelWindows.GetFirst (); node;
            node = node->GetNext())
        {
            wxWindow *win = node->GetData ();
            wxXSetBusyCursor (win, NULL);
        }
    }
}

// TRUE if we're between the above two calls
bool wxIsBusy()
{
    return (wxBusyCursorCount > 0);
}
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: cursor.cpp
	3	// Purpose: wxCursor class
	4	// Author: Julian Smart
	5	// Modified by:
	6	// Created: 17/09/98
	7	// RCS-ID: $Id$
	8	// Copyright: (c) Julian Smart
	9	// Licence: wxWindows licence
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	#ifdef __GNUG__
	13	#pragma implementation "cursor.h"
	14	#endif
	15
	16	#include "wx/cursor.h"
	17	#include "wx/app.h"
	18	#include "wx/utils.h"
	19	#include "wx/list.h"
	20	#include "wx/window.h"
	21	#if wxUSE_IMAGE
	22	#include "wx/image.h"
	23	#endif
	24
	25	#ifdef __VMS__
	26	#pragma message disable nosimpint
	27	#endif
	28	#include <Xm/Xm.h>
	29	#include <X11/cursorfont.h>
	30	#ifdef __VMS__
	31	#pragma message enable nosimpint
	32	#endif
	33
	34	#include "wx/motif/private.h"
	35
	36	// Cursor for one display, so we can choose the correct one for
	37	// the current display.
	38	class wxXCursor
	39	{
	40	public:
	41	WXDisplay* m_display;
	42	WXCursor m_cursor;
	43	};
	44
	45	WX_DECLARE_LIST(wxXCursor, wxXCursorList);
	46	#include "wx/listimpl.cpp"
	47	WX_DEFINE_LIST(wxXCursorList);
	48
	49	class WXDLLEXPORT wxCursorRefData: public wxObjectRefData
	50	{
	51	friend class WXDLLEXPORT wxCursor;
	52	public:
	53	wxCursorRefData();
	54	~wxCursorRefData();
	55
	56	wxXCursorList m_cursors; // wxXCursor objects, one per display
	57	wxStockCursor m_cursorId; // wxWindows standard cursor id
	58	};
	59
	60	#define M_CURSORDATA ((wxCursorRefData *)m_refData)
	61	#define M_CURSORHANDLERDATA ((wxCursorRefData *)bitmap->m_refData)
	62
	63	IMPLEMENT_DYNAMIC_CLASS(wxCursor, wxObject)
	64
	65	wxCursorRefData::wxCursorRefData()
	66	{
	67	m_cursorId = wxCURSOR_NONE;
	68	}
	69
	70	wxCursorRefData::~wxCursorRefData()
	71	{
	72	wxXCursorList::Node* node = m_cursors.GetFirst();
	73	while (node)
	74	{
	75	wxXCursor* c = node->GetData();
	76	XFreeCursor((Display*) c->m_display, (Cursor) c->m_cursor);
	77	delete c;
	78	node = node->GetNext();
	79	}
	80	}
	81
	82	wxCursor::wxCursor()
	83	{
	84	}
	85
	86	#if wxUSE_IMAGE
	87	wxCursor::wxCursor(const wxImage & image)
	88	{
	89	unsigned char * rgbBits = image.GetData();
	90	int w = image.GetWidth() ;
	91	int h = image.GetHeight();
	92	bool bHasMask = image.HasMask();
	93	int imagebitcount = (w*h)/8;
	94
	95	unsigned char * bits = new unsigned char [imagebitcount];
	96	unsigned char * maskBits = new unsigned char [imagebitcount];
	97
	98	int i, j, i8; unsigned char c, cMask;
	99	for (i=0; i<imagebitcount; i++)
	100	{
	101	bits[i] = 0xff;
	102	i8 = i * 8;
	103
	104	cMask = 0xfe; // 11111110
	105	for (j=0; j<8; j++)
	106	{
	107	// possible overflow if we do the summation first ?
	108	c = rgbBits[(i8+j)3]/3 + rgbBits[(i8+j)3+1]/3 + rgbBits[(i8+j)*3+2]/3;
	109	//if average value is > mid grey
	110	if (c>127)
	111	bits[i] = bits[i] & cMask;
	112	cMask = (cMask << 1) \| 1;
	113	}
	114	}
	115
	116	if (bHasMask)
	117	{
	118	unsigned char
	119	r = image.GetMaskRed(),
	120	g = image.GetMaskGreen(),
	121	b = image.GetMaskBlue();
	122
	123	for (i=0; i<imagebitcount; i++)
	124	{
	125	maskBits[i] = 0x0;
	126	i8 = i * 8;
	127
	128	cMask = 0x1;
	129	for (j=0; j<8; j++)
	130	{
	131	if (rgbBits[(i8+j)3] != r \|\| rgbBits[(i8+j)3+1] != g \|\| rgbBits[(i8+j)*3+2] != b)
	132	maskBits[i] = maskBits[i] \| cMask;
	133	cMask = (cMask << 1);
	134	}
	135	}
	136	}
	137	else // no mask
	138	{
	139	for (i=0; i<imagebitcount; i++)
	140	maskBits[i] = 0xFF;
	141	}
	142
	143	int hotSpotX;
	144	int hotSpotY;
	145
	146	if (image.HasOption(wxCUR_HOTSPOT_X))
	147	hotSpotX = image.GetOptionInt(wxCUR_HOTSPOT_X);
	148	else
	149	hotSpotX = 0;
	150
	151	if (image.HasOption(wxCUR_HOTSPOT_Y))
	152	hotSpotY = image.GetOptionInt(wxCUR_HOTSPOT_Y);
	153	else
	154	hotSpotY = 0;
	155
	156	if (hotSpotX < 0 \|\| hotSpotX >= w)
	157	hotSpotX = 0;
	158	if (hotSpotY < 0 \|\| hotSpotY >= h)
	159	hotSpotY = 0;
	160
	161	Create( (const char*)bits, w, h, hotSpotX, hotSpotY,
	162	(const char*)maskBits );
	163
	164	delete[] bits;
	165	delete[] maskBits;
	166	}
	167	#endif
	168
	169	void wxCursor::Create(const char bits[], int width, int height,
	170	int hotSpotX, int hotSpotY, const char maskBits[])
	171	{
	172	if( !m_refData )
	173	m_refData = new wxCursorRefData;
	174
	175	Display dpy = (Display) wxGetDisplay();
	176	int screen_num = DefaultScreen (dpy);
	177
	178	Pixmap pixmap = XCreatePixmapFromBitmapData (dpy,
	179	RootWindow (dpy, screen_num),
	180	(char*) bits, width, height,
	181	1 , 0 , 1);
	182
	183	Pixmap mask_pixmap = None;
	184	if (maskBits != NULL)
	185	{
	186	mask_pixmap = XCreatePixmapFromBitmapData (dpy,
	187	RootWindow (dpy, screen_num),
	188	(char*) maskBits, width, height,
	189	1 , 0 , 1);
	190	}
	191
	192	Create( (WXPixmap)pixmap, (WXPixmap)mask_pixmap, hotSpotX, hotSpotY );
	193
	194	XFreePixmap( dpy, pixmap );
	195	if (mask_pixmap != None)
	196	{
	197	XFreePixmap( dpy, mask_pixmap );
	198	}
	199	}
	200
	201	void wxCursor::Create(WXPixmap pixmap, WXPixmap mask_pixmap,
	202	int hotSpotX, int hotSpotY)
	203	{
	204	if( !m_refData )
	205	m_refData = new wxCursorRefData;
	206
	207	Display dpy = (Display) wxGetDisplay();
	208	int screen_num = DefaultScreen (dpy);
	209
	210	XColor foreground_color;
	211	XColor background_color;
	212	foreground_color.pixel = BlackPixel(dpy, screen_num);
	213	background_color.pixel = WhitePixel(dpy, screen_num);
	214	Colormap cmap = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dpy);
	215	XQueryColor(dpy, cmap, &foreground_color);
	216	XQueryColor(dpy, cmap, &background_color);
	217
	218	Cursor cursor = XCreatePixmapCursor (dpy,
	219	(Pixmap)pixmap,
	220	(Pixmap)mask_pixmap,
	221	&foreground_color,
	222	&background_color,
	223	hotSpotX ,
	224	hotSpotY);
	225
	226	if (cursor)
	227	{
	228	wxXCursor *c = new wxXCursor;
	229
	230	c->m_cursor = (WXCursor) cursor;
	231	c->m_display = (WXDisplay*) dpy;
	232	M_CURSORDATA->m_cursors.Append(c);
	233	}
	234	}
	235
	236	wxCursor::wxCursor(const char bits[], int width, int height,
	237	int hotSpotX, int hotSpotY, const char maskBits[])
	238	{
	239	Create(bits, width, height, hotSpotX, hotSpotY, maskBits);
	240	}
	241
	242	wxCursor::wxCursor(const wxString& name, long flags, int hotSpotX, int hotSpotY)
	243	{
	244	// Must be an XBM file
	245	if (flags != wxBITMAP_TYPE_XBM)
	246	return;
	247
	248	m_refData = new wxCursorRefData;
	249
	250	int hotX = -1, hotY = -1;
	251	unsigned int w, h;
	252	Pixmap pixmap = None, mask_pixmap = None;
	253
	254	Display dpy = (Display) wxGetDisplay();
	255	int screen_num = DefaultScreen (dpy);
	256
	257	int value = XReadBitmapFile (dpy, RootWindow (dpy, screen_num),
	258	wxConstCast(name.c_str(), char),
	259	&w, &h, &pixmap, &hotX, &hotY);
	260
	261	if (value == BitmapSuccess)
	262	{
	263	// TODO: how do we determine whether hotX, hotY were read correctly?
	264	if (hotX < 0 \|\| hotY < 0)
	265	{
	266	hotX = hotSpotX;
	267	hotY = hotSpotY;
	268	}
	269	if (hotX < 0 \|\| hotY < 0)
	270	{
	271	hotX = 0;
	272	hotY = 0;
	273	}
	274
	275	Create( (WXPixmap)pixmap, (WXPixmap)mask_pixmap, hotX, hotY );
	276
	277	XFreePixmap( dpy, pixmap );
	278	}
	279	}
	280
	281	// Cursors by stock number
	282	wxCursor::wxCursor(wxStockCursor id)
	283	{
	284	m_refData = new wxCursorRefData;
	285	M_CURSORDATA->m_cursorId = id;
	286	}
	287
	288	wxCursor::~wxCursor()
	289	{
	290	}
	291
	292	bool wxCursor::Ok() const
	293	{
	294	return m_refData != NULL;
	295	}
	296
	297	// Motif-specific: create/get a cursor for the current display
	298	WXCursor wxCursor::GetXCursor(WXDisplay* display)
	299	{
	300	if (!M_CURSORDATA)
	301	return (WXCursor) 0;
	302	wxXCursorList::Node* node = M_CURSORDATA->m_cursors.GetFirst();
	303	while (node)
	304	{
	305	wxXCursor* c = node->GetData();
	306	if (c->m_display == display)
	307	return c->m_cursor;
	308	node = node->GetNext();
	309	}
	310
	311	// No cursor for this display, so let's see if we're an id-type cursor.
	312
	313	if (M_CURSORDATA->m_cursorId != wxCURSOR_NONE)
	314	{
	315	WXCursor cursor = MakeCursor(display, M_CURSORDATA->m_cursorId);
	316	if (cursor)
	317	{
	318	wxXCursor* c = new wxXCursor;
	319	c->m_cursor = cursor;
	320	c->m_display = display;
	321	M_CURSORDATA->m_cursors.Append(c);
	322	return cursor;
	323	}
	324	else
	325	return (WXCursor) 0;
	326	}
	327
	328	// Not an id-type cursor, so we don't know how to create it.
	329	return (WXCursor) 0;
	330	}
	331
	332	// Make a cursor from standard id
	333	WXCursor wxCursor::MakeCursor(WXDisplay* display, wxStockCursor id)
	334	{
	335	Display* dpy = (Display*) display;
	336	Cursor cursor = (Cursor) 0;
	337	int x_cur = -1;
	338
	339	switch (id)
	340	{
	341	case wxCURSOR_WAIT: x_cur = XC_watch; break;
	342	case wxCURSOR_CROSS: x_cur = XC_crosshair; break;
	343	case wxCURSOR_CHAR: return (WXCursor)cursor; break;
	344	case wxCURSOR_HAND: x_cur = XC_hand1; break;
	345	case wxCURSOR_BULLSEYE: x_cur = XC_target; break;
	346	case wxCURSOR_PENCIL: x_cur = XC_pencil; break;
	347	case wxCURSOR_MAGNIFIER: x_cur = XC_sizing; break;
	348	case wxCURSOR_IBEAM: x_cur = XC_xterm; break;
	349	case wxCURSOR_NO_ENTRY: x_cur = XC_pirate; break;
	350	case wxCURSOR_LEFT_BUTTON: x_cur = XC_leftbutton; break;
	351	case wxCURSOR_RIGHT_BUTTON: x_cur = XC_rightbutton; break;
	352	case wxCURSOR_MIDDLE_BUTTON: x_cur = XC_middlebutton; break;
	353	case wxCURSOR_QUESTION_ARROW: x_cur = XC_question_arrow; break;
	354	case wxCURSOR_SIZING: x_cur = XC_sizing; break;
	355	case wxCURSOR_WATCH: x_cur = XC_watch; break;
	356	case wxCURSOR_SPRAYCAN: x_cur = XC_spraycan; break;
	357	case wxCURSOR_PAINT_BRUSH: x_cur = XC_spraycan; break;
	358	case wxCURSOR_SIZENWSE:
	359	case wxCURSOR_SIZENESW: x_cur = XC_crosshair; break;
	360	case wxCURSOR_SIZEWE: x_cur = XC_sb_h_double_arrow; break;
	361	case wxCURSOR_SIZENS: x_cur = XC_sb_v_double_arrow; break;
	362	case wxCURSOR_POINT_LEFT: x_cur = XC_sb_left_arrow; break;
	363	case wxCURSOR_POINT_RIGHT: x_cur = XC_sb_right_arrow; break;
	364	// (JD Huggins) added more stock cursors for X
	365	// X-only cursors BEGIN
	366	case wxCURSOR_CROSS_REVERSE: x_cur = XC_cross_reverse; break;
	367	case wxCURSOR_DOUBLE_ARROW: x_cur = XC_double_arrow; break;
	368	case wxCURSOR_BASED_ARROW_UP: x_cur = XC_based_arrow_up; break;
	369	case wxCURSOR_BASED_ARROW_DOWN: x_cur = XC_based_arrow_down; break;
	370	case wxCURSOR_BLANK:
	371	{
	372	GC gc;
	373	XGCValues gcv;
	374	Pixmap empty_pixmap;
	375	XColor blank_color;
	376
	377	empty_pixmap =
	378	XCreatePixmap (dpy, RootWindow (dpy, DefaultScreen (dpy)),
	379	16, 16, 1);
	380	gcv.function = GXxor;
	381	gc = XCreateGC (dpy,
	382	empty_pixmap,
	383	GCFunction,
	384	&gcv);
	385	XCopyArea (dpy,
	386	empty_pixmap,
	387	empty_pixmap,
	388	gc,
	389	0, 0,
	390	16, 16,
	391	0, 0);
	392	XFreeGC (dpy, gc);
	393	cursor = XCreatePixmapCursor (dpy,
	394	empty_pixmap,
	395	empty_pixmap,
	396	&blank_color,
	397	&blank_color,
	398	8, 8);
	399
	400	break;
	401	}
	402	case wxCURSOR_ARROW:
	403	default: x_cur = XC_top_left_arrow; break;
	404	}
	405
	406	if( x_cur == -1 )
	407	return (WXCursor)cursor;
	408
	409	cursor = XCreateFontCursor (dpy, x_cur);
	410	return (WXCursor) cursor;
	411	}
	412
	413	// Global cursor setting
	414	void wxSetCursor(const wxCursor& WXUNUSED(cursor))
	415	{
	416	// Nothing to do for Motif (no global cursor)
	417	}
	418
	419
	420	// ----------------------------------------------------------------------------
	421	// busy cursor stuff
	422	// ----------------------------------------------------------------------------
	423
	424	static int wxBusyCursorCount = 0;
	425
	426	// Helper function
	427	static void
	428	wxXSetBusyCursor (wxWindow * win, wxCursor * cursor)
	429	{
	430	Display display = (Display) win->GetXDisplay();
	431
	432	Window xwin = (Window) win->GetXWindow();
	433	if (!xwin)
	434	return;
	435
	436	XSetWindowAttributes attrs;
	437
	438	if (cursor)
	439	{
	440	attrs.cursor = (Cursor) cursor->GetXCursor(display);
	441	}
	442	else
	443	{
	444	// Restore old cursor
	445	if (win->GetCursor().Ok())
	446	attrs.cursor = (Cursor) win->GetCursor().GetXCursor(display);
	447	else
	448	attrs.cursor = None;
	449	}
	450	if (xwin)
	451	XChangeWindowAttributes (display, xwin, CWCursor, &attrs);
	452
	453	XFlush (display);
	454
	455	for(wxWindowList::Node *node = win->GetChildren().GetFirst (); node;
	456	node = node->GetNext())
	457	{
	458	wxWindow *child = node->GetData ();
	459	wxXSetBusyCursor (child, cursor);
	460	}
	461	}
	462
	463	// Set the cursor to the busy cursor for all windows
	464	void wxBeginBusyCursor(wxCursor *cursor)
	465	{
	466	wxBusyCursorCount++;
	467	if (wxBusyCursorCount == 1)
	468	{
	469	for(wxWindowList::Node *node = wxTopLevelWindows.GetFirst (); node;
	470	node = node->GetNext())
	471	{
	472	wxWindow *win = node->GetData ();
	473	wxXSetBusyCursor (win, cursor);
	474	}
	475	}
	476	}
	477
	478	// Restore cursor to normal
	479	void wxEndBusyCursor()
	480	{
	481	if (wxBusyCursorCount == 0)
	482	return;
	483
	484	wxBusyCursorCount--;
	485	if (wxBusyCursorCount == 0)
	486	{
	487	for(wxWindowList::Node *node = wxTopLevelWindows.GetFirst (); node;
	488	node = node->GetNext())
	489	{
	490	wxWindow *win = node->GetData ();
	491	wxXSetBusyCursor (win, NULL);
	492	}
	493	}
	494	}
	495
	496	// TRUE if we're between the above two calls
	497	bool wxIsBusy()
	498	{
	499	return (wxBusyCursorCount > 0);
	500	}