src/motif/cursor.cpp

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

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

#ifndef WX_PRECOMP
    #include "wx/list.h"
#endif

#include "wx/cursor.h"

#ifndef WX_PRECOMP
    #include "wx/app.h"
    #include "wx/utils.h"
    #include "wx/window.h"
    #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 wxCursor;
public:
    wxCursorRefData();
    virtual ~wxCursorRefData();

    wxXCursorList m_cursors;  // wxXCursor objects, one per display
    wxStockCursor m_cursorId; // wxWidgets 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::compatibility_iterator 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 = (unsigned char)(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 = (unsigned char)((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 = (unsigned char)(cMask << 1);
            }
        }
    }
    else // no mask
    {
        for (i=0; i<imagebitcount; i++)
            maskBits[i] = 0xFF;
    }

    int hotSpotX;
    int hotSpotY;

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

    if (image.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_Y))
        hotSpotY = image.GetOptionInt(wxIMAGE_OPTION_CUR_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),
                                 name.mb_str(),
                                 &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::IsOk() const
{
    return m_refData != NULL;
}

// Motif-specific: create/get a cursor for the current display
WXCursor wxCursor::GetXCursor(WXDisplay* display) const
{
    if (!M_CURSORDATA)
        return (WXCursor) 0;
    wxXCursorList::compatibility_iterator 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) const
{
    Display* dpy = (Display*) display;
    Cursor cursor = (Cursor) 0;
    int x_cur = -1;

    switch (id)
    {
    case wxCURSOR_CHAR:             return (WXCursor)cursor;

    case wxCURSOR_WAIT:             x_cur = XC_watch; break;
    case wxCURSOR_CROSS:            x_cur = XC_crosshair; 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, const 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::compatibility_iterator 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(const wxCursor *cursor)
{
    wxBusyCursorCount++;
    if (wxBusyCursorCount == 1)
    {
        for(wxWindowList::compatibility_iterator 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::compatibility_iterator 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: src/motif/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	// For compilers that support precompilation, includes "wx.h".
	13	#include "wx/wxprec.h"
	14
	15	#ifndef WX_PRECOMP
	16	#include "wx/list.h"
	17	#endif
	18
	19	#include "wx/cursor.h"
	20
	21	#ifndef WX_PRECOMP
	22	#include "wx/app.h"
	23	#include "wx/utils.h"
	24	#include "wx/window.h"
	25	#include "wx/image.h"
	26	#endif
	27
	28	#ifdef __VMS__
	29	#pragma message disable nosimpint
	30	#endif
	31	#include <Xm/Xm.h>
	32	#include <X11/cursorfont.h>
	33	#ifdef __VMS__
	34	#pragma message enable nosimpint
	35	#endif
	36
	37	#include "wx/motif/private.h"
	38
	39	// Cursor for one display, so we can choose the correct one for
	40	// the current display.
	41	class wxXCursor
	42	{
	43	public:
	44	WXDisplay* m_display;
	45	WXCursor m_cursor;
	46	};
	47
	48	WX_DECLARE_LIST(wxXCursor, wxXCursorList);
	49	#include "wx/listimpl.cpp"
	50	WX_DEFINE_LIST(wxXCursorList)
	51
	52	class WXDLLEXPORT wxCursorRefData: public wxObjectRefData
	53	{
	54	friend class wxCursor;
	55	public:
	56	wxCursorRefData();
	57	virtual ~wxCursorRefData();
	58
	59	wxXCursorList m_cursors; // wxXCursor objects, one per display
	60	wxStockCursor m_cursorId; // wxWidgets standard cursor id
	61	};
	62
	63	#define M_CURSORDATA ((wxCursorRefData *)m_refData)
	64	#define M_CURSORHANDLERDATA ((wxCursorRefData *)bitmap->m_refData)
	65
	66	IMPLEMENT_DYNAMIC_CLASS(wxCursor, wxObject)
	67
	68	wxCursorRefData::wxCursorRefData()
	69	{
	70	m_cursorId = wxCURSOR_NONE;
	71	}
	72
	73	wxCursorRefData::~wxCursorRefData()
	74	{
	75	wxXCursorList::compatibility_iterator node = m_cursors.GetFirst();
	76	while (node)
	77	{
	78	wxXCursor* c = node->GetData();
	79	XFreeCursor((Display*) c->m_display, (Cursor) c->m_cursor);
	80	delete c;
	81	node = node->GetNext();
	82	}
	83	}
	84
	85	wxCursor::wxCursor()
	86	{
	87	}
	88
	89	#if wxUSE_IMAGE
	90	wxCursor::wxCursor(const wxImage & image)
	91	{
	92	unsigned char * rgbBits = image.GetData();
	93	int w = image.GetWidth() ;
	94	int h = image.GetHeight();
	95	bool bHasMask = image.HasMask();
	96	int imagebitcount = (w*h)/8;
	97
	98	unsigned char * bits = new unsigned char [imagebitcount];
	99	unsigned char * maskBits = new unsigned char [imagebitcount];
	100
	101	int i, j, i8;
	102	unsigned char c, cMask;
	103	for (i=0; i<imagebitcount; i++)
	104	{
	105	bits[i] = 0xff;
	106	i8 = i * 8;
	107
	108	cMask = 0xfe; // 11111110
	109	for (j=0; j<8; j++)
	110	{
	111	// possible overflow if we do the summation first ?
	112	c = (unsigned char)(rgbBits[(i8+j)3]/3 + rgbBits[(i8+j)3+1]/3 + rgbBits[(i8+j)*3+2]/3);
	113	// if average value is > mid grey
	114	if (c>127)
	115	bits[i] = bits[i] & cMask;
	116	cMask = (unsigned char)((cMask << 1) \| 1);
	117	}
	118	}
	119
	120	if (bHasMask)
	121	{
	122	unsigned char
	123	r = image.GetMaskRed(),
	124	g = image.GetMaskGreen(),
	125	b = image.GetMaskBlue();
	126
	127	for (i=0; i<imagebitcount; i++)
	128	{
	129	maskBits[i] = 0x0;
	130	i8 = i * 8;
	131
	132	cMask = 0x1;
	133	for (j=0; j<8; j++)
	134	{
	135	if (rgbBits[(i8+j)3] != r \|\| rgbBits[(i8+j)3+1] != g \|\| rgbBits[(i8+j)*3+2] != b)
	136	maskBits[i] = maskBits[i] \| cMask;
	137	cMask = (unsigned char)(cMask << 1);
	138	}
	139	}
	140	}
	141	else // no mask
	142	{
	143	for (i=0; i<imagebitcount; i++)
	144	maskBits[i] = 0xFF;
	145	}
	146
	147	int hotSpotX;
	148	int hotSpotY;
	149
	150	if (image.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_X))
	151	hotSpotX = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_X);
	152	else
	153	hotSpotX = 0;
	154
	155	if (image.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_Y))
	156	hotSpotY = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_Y);
	157	else
	158	hotSpotY = 0;
	159
	160	if (hotSpotX < 0 \|\| hotSpotX >= w)
	161	hotSpotX = 0;
	162	if (hotSpotY < 0 \|\| hotSpotY >= h)
	163	hotSpotY = 0;
	164
	165	Create( (const char*)bits, w, h, hotSpotX, hotSpotY,
	166	(const char*)maskBits );
	167
	168	delete[] bits;
	169	delete[] maskBits;
	170	}
	171	#endif
	172
	173	void wxCursor::Create(const char bits[], int width, int height,
	174	int hotSpotX, int hotSpotY, const char maskBits[])
	175	{
	176	if( !m_refData )
	177	m_refData = new wxCursorRefData;
	178
	179	Display dpy = (Display) wxGetDisplay();
	180	int screen_num = DefaultScreen (dpy);
	181
	182	Pixmap pixmap = XCreatePixmapFromBitmapData (dpy,
	183	RootWindow (dpy, screen_num),
	184	(char*) bits, width, height,
	185	1 , 0 , 1);
	186
	187	Pixmap mask_pixmap = None;
	188	if (maskBits != NULL)
	189	{
	190	mask_pixmap = XCreatePixmapFromBitmapData (dpy,
	191	RootWindow (dpy, screen_num),
	192	(char*) maskBits, width, height,
	193	1 , 0 , 1);
	194	}
	195
	196	Create( (WXPixmap)pixmap, (WXPixmap)mask_pixmap, hotSpotX, hotSpotY );
	197
	198	XFreePixmap( dpy, pixmap );
	199	if (mask_pixmap != None)
	200	{
	201	XFreePixmap( dpy, mask_pixmap );
	202	}
	203	}
	204
	205	void wxCursor::Create(WXPixmap pixmap, WXPixmap mask_pixmap,
	206	int hotSpotX, int hotSpotY)
	207	{
	208	if( !m_refData )
	209	m_refData = new wxCursorRefData;
	210
	211	Display dpy = (Display) wxGetDisplay();
	212	int screen_num = DefaultScreen (dpy);
	213
	214	XColor foreground_color;
	215	XColor background_color;
	216	foreground_color.pixel = BlackPixel(dpy, screen_num);
	217	background_color.pixel = WhitePixel(dpy, screen_num);
	218	Colormap cmap = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dpy);
	219	XQueryColor(dpy, cmap, &foreground_color);
	220	XQueryColor(dpy, cmap, &background_color);
	221
	222	Cursor cursor = XCreatePixmapCursor (dpy,
	223	(Pixmap)pixmap,
	224	(Pixmap)mask_pixmap,
	225	&foreground_color,
	226	&background_color,
	227	hotSpotX ,
	228	hotSpotY);
	229
	230	if (cursor)
	231	{
	232	wxXCursor *c = new wxXCursor;
	233
	234	c->m_cursor = (WXCursor) cursor;
	235	c->m_display = (WXDisplay*) dpy;
	236	M_CURSORDATA->m_cursors.Append(c);
	237	}
	238	}
	239
	240	wxCursor::wxCursor(const char bits[], int width, int height,
	241	int hotSpotX, int hotSpotY, const char maskBits[])
	242	{
	243	Create(bits, width, height, hotSpotX, hotSpotY, maskBits);
	244	}
	245
	246	wxCursor::wxCursor(const wxString& name, long flags, int hotSpotX, int hotSpotY)
	247	{
	248	// Must be an XBM file
	249	if (flags != wxBITMAP_TYPE_XBM)
	250	return;
	251
	252	m_refData = new wxCursorRefData;
	253
	254	int hotX = -1, hotY = -1;
	255	unsigned int w, h;
	256	Pixmap pixmap = None, mask_pixmap = None;
	257
	258	Display dpy = (Display) wxGetDisplay();
	259	int screen_num = DefaultScreen (dpy);
	260
	261	int value = XReadBitmapFile (dpy, RootWindow (dpy, screen_num),
	262	name.mb_str(),
	263	&w, &h, &pixmap, &hotX, &hotY);
	264
	265	if (value == BitmapSuccess)
	266	{
	267	// TODO: how do we determine whether hotX, hotY were read correctly?
	268	if (hotX < 0 \|\| hotY < 0)
	269	{
	270	hotX = hotSpotX;
	271	hotY = hotSpotY;
	272	}
	273	if (hotX < 0 \|\| hotY < 0)
	274	{
	275	hotX = 0;
	276	hotY = 0;
	277	}
	278
	279	Create( (WXPixmap)pixmap, (WXPixmap)mask_pixmap, hotX, hotY );
	280
	281	XFreePixmap( dpy, pixmap );
	282	}
	283	}
	284
	285	// Cursors by stock number
	286	wxCursor::wxCursor(wxStockCursor id)
	287	{
	288	m_refData = new wxCursorRefData;
	289	M_CURSORDATA->m_cursorId = id;
	290	}
	291
	292	wxCursor::~wxCursor()
	293	{
	294	}
	295
	296	bool wxCursor::IsOk() const
	297	{
	298	return m_refData != NULL;
	299	}
	300
	301	// Motif-specific: create/get a cursor for the current display
	302	WXCursor wxCursor::GetXCursor(WXDisplay* display) const
	303	{
	304	if (!M_CURSORDATA)
	305	return (WXCursor) 0;
	306	wxXCursorList::compatibility_iterator node = M_CURSORDATA->m_cursors.GetFirst();
	307	while (node)
	308	{
	309	wxXCursor* c = node->GetData();
	310	if (c->m_display == display)
	311	return c->m_cursor;
	312	node = node->GetNext();
	313	}
	314
	315	// No cursor for this display, so let's see if we're an id-type cursor.
	316
	317	if (M_CURSORDATA->m_cursorId != wxCURSOR_NONE)
	318	{
	319	WXCursor cursor = MakeCursor(display, M_CURSORDATA->m_cursorId);
	320	if (cursor)
	321	{
	322	wxXCursor* c = new wxXCursor;
	323	c->m_cursor = cursor;
	324	c->m_display = display;
	325	M_CURSORDATA->m_cursors.Append(c);
	326	return cursor;
	327	}
	328	else
	329	return (WXCursor) 0;
	330	}
	331
	332	// Not an id-type cursor, so we don't know how to create it.
	333	return (WXCursor) 0;
	334	}
	335
	336	// Make a cursor from standard id
	337	WXCursor wxCursor::MakeCursor(WXDisplay* display, wxStockCursor id) const
	338	{
	339	Display* dpy = (Display*) display;
	340	Cursor cursor = (Cursor) 0;
	341	int x_cur = -1;
	342
	343	switch (id)
	344	{
	345	case wxCURSOR_CHAR: return (WXCursor)cursor;
	346
	347	case wxCURSOR_WAIT: x_cur = XC_watch; break;
	348	case wxCURSOR_CROSS: x_cur = XC_crosshair; break;
	349	case wxCURSOR_HAND: x_cur = XC_hand1; break;
	350	case wxCURSOR_BULLSEYE: x_cur = XC_target; break;
	351	case wxCURSOR_PENCIL: x_cur = XC_pencil; break;
	352	case wxCURSOR_MAGNIFIER: x_cur = XC_sizing; break;
	353	case wxCURSOR_IBEAM: x_cur = XC_xterm; break;
	354	case wxCURSOR_NO_ENTRY: x_cur = XC_pirate; break;
	355	case wxCURSOR_LEFT_BUTTON: x_cur = XC_leftbutton; break;
	356	case wxCURSOR_RIGHT_BUTTON: x_cur = XC_rightbutton; break;
	357	case wxCURSOR_MIDDLE_BUTTON: x_cur = XC_middlebutton; break;
	358	case wxCURSOR_QUESTION_ARROW: x_cur = XC_question_arrow; break;
	359	case wxCURSOR_SIZING: x_cur = XC_sizing; break;
	360	case wxCURSOR_WATCH: x_cur = XC_watch; break;
	361	case wxCURSOR_SPRAYCAN: x_cur = XC_spraycan; break;
	362	case wxCURSOR_PAINT_BRUSH: x_cur = XC_spraycan; break;
	363	case wxCURSOR_SIZENWSE:
	364	case wxCURSOR_SIZENESW: x_cur = XC_crosshair; break;
	365	case wxCURSOR_SIZEWE: x_cur = XC_sb_h_double_arrow; break;
	366	case wxCURSOR_SIZENS: x_cur = XC_sb_v_double_arrow; break;
	367	case wxCURSOR_POINT_LEFT: x_cur = XC_sb_left_arrow; break;
	368	case wxCURSOR_POINT_RIGHT: x_cur = XC_sb_right_arrow; break;
	369	// (JD Huggins) added more stock cursors for X
	370	// X-only cursors BEGIN
	371	case wxCURSOR_CROSS_REVERSE: x_cur = XC_cross_reverse; break;
	372	case wxCURSOR_DOUBLE_ARROW: x_cur = XC_double_arrow; break;
	373	case wxCURSOR_BASED_ARROW_UP: x_cur = XC_based_arrow_up; break;
	374	case wxCURSOR_BASED_ARROW_DOWN: x_cur = XC_based_arrow_down; break;
	375	case wxCURSOR_BLANK:
	376	{
	377	GC gc;
	378	XGCValues gcv;
	379	Pixmap empty_pixmap;
	380	XColor blank_color;
	381
	382	empty_pixmap =
	383	XCreatePixmap (dpy, RootWindow (dpy, DefaultScreen (dpy)),
	384	16, 16, 1);
	385	gcv.function = GXxor;
	386	gc = XCreateGC (dpy,
	387	empty_pixmap,
	388	GCFunction,
	389	&gcv);
	390	XCopyArea (dpy,
	391	empty_pixmap,
	392	empty_pixmap,
	393	gc,
	394	0, 0,
	395	16, 16,
	396	0, 0);
	397	XFreeGC (dpy, gc);
	398	cursor = XCreatePixmapCursor (dpy,
	399	empty_pixmap,
	400	empty_pixmap,
	401	&blank_color,
	402	&blank_color,
	403	8, 8);
	404
	405	break;
	406	}
	407	case wxCURSOR_ARROW:
	408	default: x_cur = XC_top_left_arrow; break;
	409	}
	410
	411	if( x_cur == -1 )
	412	return (WXCursor)cursor;
	413
	414	cursor = XCreateFontCursor (dpy, x_cur);
	415	return (WXCursor) cursor;
	416	}
	417
	418	// Global cursor setting
	419	void wxSetCursor(const wxCursor& WXUNUSED(cursor))
	420	{
	421	// Nothing to do for Motif (no global cursor)
	422	}
	423
	424
	425	// ----------------------------------------------------------------------------
	426	// busy cursor stuff
	427	// ----------------------------------------------------------------------------
	428
	429	static int wxBusyCursorCount = 0;
	430
	431	// Helper function
	432	static void
	433	wxXSetBusyCursor (wxWindow * win, const wxCursor * cursor)
	434	{
	435	Display display = (Display) win->GetXDisplay();
	436
	437	Window xwin = (Window) win->GetXWindow();
	438	if (!xwin)
	439	return;
	440
	441	XSetWindowAttributes attrs;
	442
	443	if (cursor)
	444	{
	445	attrs.cursor = (Cursor) cursor->GetXCursor(display);
	446	}
	447	else
	448	{
	449	// Restore old cursor
	450	if (win->GetCursor().Ok())
	451	attrs.cursor = (Cursor) win->GetCursor().GetXCursor(display);
	452	else
	453	attrs.cursor = None;
	454	}
	455	if (xwin)
	456	XChangeWindowAttributes (display, xwin, CWCursor, &attrs);
	457
	458	XFlush (display);
	459
	460	for(wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst (); node;
	461	node = node->GetNext())
	462	{
	463	wxWindow *child = node->GetData ();
	464	wxXSetBusyCursor (child, cursor);
	465	}
	466	}
	467
	468	// Set the cursor to the busy cursor for all windows
	469	void wxBeginBusyCursor(const wxCursor *cursor)
	470	{
	471	wxBusyCursorCount++;
	472	if (wxBusyCursorCount == 1)
	473	{
	474	for(wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst (); node;
	475	node = node->GetNext())
	476	{
	477	wxWindow *win = node->GetData ();
	478	wxXSetBusyCursor (win, cursor);
	479	}
	480	}
	481	}
	482
	483	// Restore cursor to normal
	484	void wxEndBusyCursor()
	485	{
	486	if (wxBusyCursorCount == 0)
	487	return;
	488
	489	wxBusyCursorCount--;
	490	if (wxBusyCursorCount == 0)
	491	{
	492	for(wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst (); node;
	493	node = node->GetNext())
	494	{
	495	wxWindow *win = node->GetData ();
	496	wxXSetBusyCursor (win, NULL);
	497	}
	498	}
	499	}
	500
	501	// true if we're between the above two calls
	502	bool wxIsBusy()
	503	{
	504	return (wxBusyCursorCount > 0);
	505	}