src/x11/utils.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        src/x11/utils.cpp
// Purpose:     Various utilities
// 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"

#if defined(__BORLANDC__)
    #pragma hdrstop
#endif

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

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

#include "wx/utils.h"

#ifndef WX_PRECOMP
    #include "wx/app.h"
    #include "wx/window.h" // for wxTopLevelWindows
    #include "wx/cursor.h"
    #include "wx/msgdlg.h"
#endif

#include "wx/apptrait.h"

#include <ctype.h>
#include <stdarg.h>
#include <dirent.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/wait.h>
#include <pwd.h>
#include <errno.h>
// #include <netdb.h>
#include <signal.h>

#if (defined(__SUNCC__) || defined(__CLCC__))
    #include <sysent.h>
#endif

#ifdef __VMS__
#pragma message disable nosimpint
#endif

#include "wx/unix/execute.h"

#include "wx/x11/private.h"

#include "X11/Xutil.h"

#ifdef __VMS__
#pragma message enable nosimpint
#endif

// ----------------------------------------------------------------------------
// async event processing
// ----------------------------------------------------------------------------

// Consume all events until no more left
void wxFlushEvents()
{
    Display *display = (Display*) wxGetDisplay();

    XSync (display, FALSE);

    // TODO for X11
    // ??
}

bool wxCheckForInterrupt(wxWindow *wnd)
{
    wxFAIL_MSG(wxT("wxCheckForInterrupt not yet implemented."));
    return false;
}

// ----------------------------------------------------------------------------
// wxExecute stuff
// ----------------------------------------------------------------------------

WX_DECLARE_HASH_MAP( int, wxEndProcessData*, wxIntegerHash, wxIntegerEqual, wxProcMap );

static wxProcMap *gs_procmap;

int wxAddProcessCallback(wxEndProcessData *proc_data, int fd)
{
    if (!gs_procmap) gs_procmap = new wxProcMap();
    (*gs_procmap)[fd] = proc_data;
    return 1;
}

void wxCheckForFinishedChildren()
{
    wxProcMap::iterator it;
    if (!gs_procmap) return;
    if (gs_procmap->size() == 0) {
      // Map empty, delete it.
      delete gs_procmap;
      gs_procmap = NULL;
      return;
    }
    for (it = gs_procmap->begin();it != gs_procmap->end(); ++it)
    {
        wxEndProcessData *proc_data = it->second;
        int pid = (proc_data->pid > 0) ? proc_data->pid : -(proc_data->pid);
        int status = 0;
        // has the process really terminated?
        int rc = waitpid(pid, &status, WNOHANG);
        if (rc == 0)
            continue;       // no, it didn't exit yet, continue waiting

        // set exit code to -1 if something bad happened
        proc_data->exitcode = rc != -1 && WIFEXITED(status) ?
                   WEXITSTATUS(status) : -1;

        // child exited, end waiting
        close(it->first);

        // don't call us again!
        gs_procmap->erase(it->first);

        wxHandleProcessTermination(proc_data);

        // Iterator is invalid. Handle any further children in subsequent
        // calls.
        break;
    }
}

// ----------------------------------------------------------------------------
// misc
// ----------------------------------------------------------------------------

// Emit a beeeeeep
#ifndef __EMX__
// on OS/2, we use the wxBell from wxBase library (src/os2/utils.cpp)
void wxBell()
{
    // Use current setting for the bell
    XBell ((Display*) wxGetDisplay(), 0);
}
#endif

wxPortId wxGUIAppTraits::GetToolkitVersion(int *verMaj, int *verMin) const
{
    // get X protocol version
    Display *display = wxGlobalDisplay();
    if (display)
    {
        if ( verMaj )
            *verMaj = ProtocolVersion (display);
        if ( verMin )
            *verMin = ProtocolRevision (display);
    }

    return wxPORT_X11;
}


// ----------------------------------------------------------------------------
// display info
// ----------------------------------------------------------------------------

void wxGetMousePosition( int* x, int* y )
{
#if wxUSE_NANOX
    // TODO
    *x = 0;
    *y = 0;
#else
    XMotionEvent xev;
    Window root, child;
    XQueryPointer((Display*) wxGetDisplay(),
                  DefaultRootWindow((Display*) wxGetDisplay()),
                  &root, &child,
                  &(xev.x_root), &(xev.y_root),
                  &(xev.x),      &(xev.y),
                  &(xev.state));
    *x = xev.x_root;
    *y = xev.y_root;
#endif
};

// Return true if we have a colour display
bool wxColourDisplay()
{
    return wxDisplayDepth() > 1;
}

// Returns depth of screen
int wxDisplayDepth()
{
    Display *dpy = (Display*) wxGetDisplay();

    return DefaultDepth (dpy, DefaultScreen (dpy));
}

// Get size of display
void wxDisplaySize(int *width, int *height)
{
    Display *dpy = (Display*) wxGetDisplay();

    if ( width )
        *width = DisplayWidth (dpy, DefaultScreen (dpy));
    if ( height )
        *height = DisplayHeight (dpy, DefaultScreen (dpy));
}

void wxDisplaySizeMM(int *width, int *height)
{
    Display *dpy = (Display*) wxGetDisplay();

    if ( width )
        *width = DisplayWidthMM(dpy, DefaultScreen (dpy));
    if ( height )
        *height = DisplayHeightMM(dpy, DefaultScreen (dpy));
}

void wxClientDisplayRect(int *x, int *y, int *width, int *height)
{
    // This is supposed to return desktop dimensions minus any window
    // manager panels, menus, taskbars, etc.  If there is a way to do that
    // for this platform please fix this function, otherwise it defaults
    // to the entire desktop.
    if (x) *x = 0;
    if (y) *y = 0;
    wxDisplaySize(width, height);
}

wxWindow* wxFindWindowAtPoint(const wxPoint& pt)
{
    return wxGenericFindWindowAtPoint(pt);
}


// Configurable display in wxX11 and wxMotif
static Display *gs_currentDisplay = NULL;
static wxString gs_displayName;

WXDisplay *wxGetDisplay()
{
    return (WXDisplay *)gs_currentDisplay;
}

// close the current display
void wxCloseDisplay()
{
    if ( gs_currentDisplay )
    {
        if ( XCloseDisplay(gs_currentDisplay) != 0 )
        {
            wxLogWarning(_("Failed to close the display \"%s\""),
                         gs_displayName.c_str());
        }

        gs_currentDisplay = NULL;
        gs_displayName.clear();
    }
}

bool wxSetDisplay(const wxString& displayName)
{
    Display *dpy = XOpenDisplay
                   (
                    displayName.empty() ? NULL
                                        : (const char *)displayName.mb_str()
                   );

    if ( !dpy )
    {
        wxLogError(_("Failed to open display \"%s\"."), displayName.c_str());
        return false;
    }

    wxCloseDisplay();

    gs_currentDisplay = dpy;
    gs_displayName = displayName;

    return true;
}

wxString wxGetDisplayName()
{
    return gs_displayName;
}

#include "wx/module.h"

// the module responsible for closing the X11 display at the program end
class wxX11DisplayModule : public wxModule
{
public:
    virtual bool OnInit() { return true; }
    virtual void OnExit() { wxCloseDisplay(); }

private:
    DECLARE_DYNAMIC_CLASS(wxX11DisplayModule)
};

IMPLEMENT_DYNAMIC_CLASS(wxX11DisplayModule, wxModule)

// ----------------------------------------------------------------------------
// Some colour manipulation routines
// ----------------------------------------------------------------------------

void wxHSVToXColor(wxHSV *hsv,XColor *rgb)
{
    int h = hsv->h;
    int s = hsv->s;
    int v = hsv->v;
    int r = 0, g = 0, b = 0;
    int i, f;
    int p, q, t;
    s = (s * wxMAX_RGB) / wxMAX_SV;
    v = (v * wxMAX_RGB) / wxMAX_SV;
    if (h == 360) h = 0;
    if (s == 0) { h = 0; r = g = b = v; }
    i = h / 60;
    f = h % 60;
    p = v * (wxMAX_RGB - s) / wxMAX_RGB;
    q = v * (wxMAX_RGB - s * f / 60) / wxMAX_RGB;
    t = v * (wxMAX_RGB - s * (60 - f) / 60) / wxMAX_RGB;
    switch (i)
    {
    case 0: r = v, g = t, b = p; break;
    case 1: r = q, g = v, b = p; break;
    case 2: r = p, g = v, b = t; break;
    case 3: r = p, g = q, b = v; break;
    case 4: r = t, g = p, b = v; break;
    case 5: r = v, g = p, b = q; break;
    }
    rgb->red = r << 8;
    rgb->green = g << 8;
    rgb->blue = b << 8;
}

void wxXColorToHSV(wxHSV *hsv,XColor *rgb)
{
    int r = rgb->red >> 8;
    int g = rgb->green >> 8;
    int b = rgb->blue >> 8;
    int maxv = wxMax3(r, g, b);
    int minv = wxMin3(r, g, b);
    int h = 0, s, v;
    v = maxv;
    if (maxv) s = (maxv - minv) * wxMAX_RGB / maxv;
    else s = 0;
    if (s == 0) h = 0;
    else
    {
        int rc, gc, bc, hex = 0;
        rc = (maxv - r) * wxMAX_RGB / (maxv - minv);
        gc = (maxv - g) * wxMAX_RGB / (maxv - minv);
        bc = (maxv - b) * wxMAX_RGB / (maxv - minv);
        if (r == maxv) { h = bc - gc, hex = 0; }
        else if (g == maxv) { h = rc - bc, hex = 2; }
        else if (b == maxv) { h = gc - rc, hex = 4; }
        h = hex * 60 + (h * 60 / wxMAX_RGB);
        if (h < 0) h += 360;
    }
    hsv->h = h;
    hsv->s = (s * wxMAX_SV) / wxMAX_RGB;
    hsv->v = (v * wxMAX_SV) / wxMAX_RGB;
}

void wxAllocNearestColor(Display *d,Colormap cmp,XColor *xc)
{
#if !wxUSE_NANOX
    int llp;

    int screen = DefaultScreen(d);
    int num_colors = DisplayCells(d,screen);

    XColor *color_defs = new XColor[num_colors];
    for(llp = 0;llp < num_colors;llp++) color_defs[llp].pixel = llp;
    XQueryColors(d,cmp,color_defs,num_colors);

    wxHSV hsv_defs, hsv;
    wxXColorToHSV(&hsv,xc);

    int diff, min_diff = 0, pixel = 0;

    for(llp = 0;llp < num_colors;llp++)
    {
        wxXColorToHSV(&hsv_defs,&color_defs[llp]);
        diff = wxSIGN(wxH_WEIGHT * (hsv.h - hsv_defs.h)) +
            wxSIGN(wxS_WEIGHT * (hsv.s - hsv_defs.s)) +
            wxSIGN(wxV_WEIGHT * (hsv.v - hsv_defs.v));
        if (llp == 0) min_diff = diff;
        if (min_diff > diff) { min_diff = diff; pixel = llp; }
        if (min_diff == 0) break;
    }

    xc -> red = color_defs[pixel].red;
    xc -> green = color_defs[pixel].green;
    xc -> blue = color_defs[pixel].blue;
    xc -> flags = DoRed | DoGreen | DoBlue;

/*  FIXME, TODO
    if (!XAllocColor(d,cmp,xc))
        cout << "wxAllocNearestColor : Warning : Cannot find nearest color !\n";
*/

    delete[] color_defs;
#endif
}

void wxAllocColor(Display *d,Colormap cmp,XColor *xc)
{
    if (!XAllocColor(d,cmp,xc))
    {
        //          cout << "wxAllocColor : Warning : Can not allocate color, attempt find nearest !\n";
        wxAllocNearestColor(d,cmp,xc);
    }
}

#ifdef __WXDEBUG__
wxString wxGetXEventName(XEvent& event)
{
#if wxUSE_NANOX
    wxString str(wxT("(some event)"));
    return str;
#else
    int type = event.xany.type;
    static char* event_name[] = {
        "", "unknown(-)",                                         // 0-1
        "KeyPress", "KeyRelease", "ButtonPress", "ButtonRelease", // 2-5
        "MotionNotify", "EnterNotify", "LeaveNotify", "FocusIn",  // 6-9
        "FocusOut", "KeymapNotify", "Expose", "GraphicsExpose",   // 10-13
        "NoExpose", "VisibilityNotify", "CreateNotify",           // 14-16
        "DestroyNotify", "UnmapNotify", "MapNotify", "MapRequest",// 17-20
        "ReparentNotify", "ConfigureNotify", "ConfigureRequest",  // 21-23
        "GravityNotify", "ResizeRequest", "CirculateNotify",      // 24-26
        "CirculateRequest", "PropertyNotify", "SelectionClear",   // 27-29
        "SelectionRequest", "SelectionNotify", "ColormapNotify",  // 30-32
        "ClientMessage", "MappingNotify",                         // 33-34
        "unknown(+)"};                                            // 35
        type = wxMin(35, type); type = wxMax(1, type);
        return wxString::FromAscii(event_name[type]);
#endif
}
#endif

bool wxWindowIsVisible(Window win)
{
    XWindowAttributes wa;
    XGetWindowAttributes(wxGlobalDisplay(), win, &wa);

    return (wa.map_state == IsViewable);
}
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: src/x11/utils.cpp
	3	// Purpose: Various utilities
	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	#if defined(__BORLANDC__)
	16	#pragma hdrstop
	17	#endif
	18
	19	// ============================================================================
	20	// declarations
	21	// ============================================================================
	22
	23	// ----------------------------------------------------------------------------
	24	// headers
	25	// ----------------------------------------------------------------------------
	26
	27	#include "wx/utils.h"
	28
	29	#ifndef WX_PRECOMP
	30	#include "wx/app.h"
	31	#include "wx/window.h" // for wxTopLevelWindows
	32	#include "wx/cursor.h"
	33	#include "wx/msgdlg.h"
	34	#endif
	35
	36	#include "wx/apptrait.h"
	37
	38	#include <ctype.h>
	39	#include <stdarg.h>
	40	#include <dirent.h>
	41	#include <string.h>
	42	#include <sys/stat.h>
	43	#include <sys/types.h>
	44	#include <unistd.h>
	45	#include <sys/wait.h>
	46	#include <pwd.h>
	47	#include <errno.h>
	48	// #include <netdb.h>
	49	#include <signal.h>
	50
	51	#if (defined(__SUNCC__) \|\| defined(__CLCC__))
	52	#include <sysent.h>
	53	#endif
	54
	55	#ifdef __VMS__
	56	#pragma message disable nosimpint
	57	#endif
	58
	59	#include "wx/unix/execute.h"
	60
	61	#include "wx/x11/private.h"
	62
	63	#include "X11/Xutil.h"
	64
	65	#ifdef __VMS__
	66	#pragma message enable nosimpint
	67	#endif
	68
	69	// ----------------------------------------------------------------------------
	70	// async event processing
	71	// ----------------------------------------------------------------------------
	72
	73	// Consume all events until no more left
	74	void wxFlushEvents()
	75	{
	76	Display display = (Display) wxGetDisplay();
	77
	78	XSync (display, FALSE);
	79
	80	// TODO for X11
	81	// ??
	82	}
	83
	84	bool wxCheckForInterrupt(wxWindow *wnd)
	85	{
	86	wxFAIL_MSG(wxT("wxCheckForInterrupt not yet implemented."));
	87	return false;
	88	}
	89
	90	// ----------------------------------------------------------------------------
	91	// wxExecute stuff
	92	// ----------------------------------------------------------------------------
	93
	94	WX_DECLARE_HASH_MAP( int, wxEndProcessData*, wxIntegerHash, wxIntegerEqual, wxProcMap );
	95
	96	static wxProcMap *gs_procmap;
	97
	98	int wxAddProcessCallback(wxEndProcessData *proc_data, int fd)
	99	{
	100	if (!gs_procmap) gs_procmap = new wxProcMap();
	101	(*gs_procmap)[fd] = proc_data;
	102	return 1;
	103	}
	104
	105	void wxCheckForFinishedChildren()
	106	{
	107	wxProcMap::iterator it;
	108	if (!gs_procmap) return;
	109	if (gs_procmap->size() == 0) {
	110	// Map empty, delete it.
	111	delete gs_procmap;
	112	gs_procmap = NULL;
	113	return;
	114	}
	115	for (it = gs_procmap->begin();it != gs_procmap->end(); ++it)
	116	{
	117	wxEndProcessData *proc_data = it->second;
	118	int pid = (proc_data->pid > 0) ? proc_data->pid : -(proc_data->pid);
	119	int status = 0;
	120	// has the process really terminated?
	121	int rc = waitpid(pid, &status, WNOHANG);
	122	if (rc == 0)
	123	continue; // no, it didn't exit yet, continue waiting
	124
	125	// set exit code to -1 if something bad happened
	126	proc_data->exitcode = rc != -1 && WIFEXITED(status) ?
	127	WEXITSTATUS(status) : -1;
	128
	129	// child exited, end waiting
	130	close(it->first);
	131
	132	// don't call us again!
	133	gs_procmap->erase(it->first);
	134
	135	wxHandleProcessTermination(proc_data);
	136
	137	// Iterator is invalid. Handle any further children in subsequent
	138	// calls.
	139	break;
	140	}
	141	}
	142
	143	// ----------------------------------------------------------------------------
	144	// misc
	145	// ----------------------------------------------------------------------------
	146
	147	// Emit a beeeeeep
	148	#ifndef __EMX__
	149	// on OS/2, we use the wxBell from wxBase library (src/os2/utils.cpp)
	150	void wxBell()
	151	{
	152	// Use current setting for the bell
	153	XBell ((Display*) wxGetDisplay(), 0);
	154	}
	155	#endif
	156
	157	wxPortId wxGUIAppTraits::GetToolkitVersion(int verMaj, int verMin) const
	158	{
	159	// get X protocol version
	160	Display *display = wxGlobalDisplay();
	161	if (display)
	162	{
	163	if ( verMaj )
	164	*verMaj = ProtocolVersion (display);
	165	if ( verMin )
	166	*verMin = ProtocolRevision (display);
	167	}
	168
	169	return wxPORT_X11;
	170	}
	171
	172
	173	// ----------------------------------------------------------------------------
	174	// display info
	175	// ----------------------------------------------------------------------------
	176
	177	void wxGetMousePosition( int* x, int* y )
	178	{
	179	#if wxUSE_NANOX
	180	// TODO
	181	*x = 0;
	182	*y = 0;
	183	#else
	184	XMotionEvent xev;
	185	Window root, child;
	186	XQueryPointer((Display*) wxGetDisplay(),
	187	DefaultRootWindow((Display*) wxGetDisplay()),
	188	&root, &child,
	189	&(xev.x_root), &(xev.y_root),
	190	&(xev.x), &(xev.y),
	191	&(xev.state));
	192	*x = xev.x_root;
	193	*y = xev.y_root;
	194	#endif
	195	};
	196
	197	// Return true if we have a colour display
	198	bool wxColourDisplay()
	199	{
	200	return wxDisplayDepth() > 1;
	201	}
	202
	203	// Returns depth of screen
	204	int wxDisplayDepth()
	205	{
	206	Display dpy = (Display) wxGetDisplay();
	207
	208	return DefaultDepth (dpy, DefaultScreen (dpy));
	209	}
	210
	211	// Get size of display
	212	void wxDisplaySize(int width, int height)
	213	{
	214	Display dpy = (Display) wxGetDisplay();
	215
	216	if ( width )
	217	*width = DisplayWidth (dpy, DefaultScreen (dpy));
	218	if ( height )
	219	*height = DisplayHeight (dpy, DefaultScreen (dpy));
	220	}
	221
	222	void wxDisplaySizeMM(int width, int height)
	223	{
	224	Display dpy = (Display) wxGetDisplay();
	225
	226	if ( width )
	227	*width = DisplayWidthMM(dpy, DefaultScreen (dpy));
	228	if ( height )
	229	*height = DisplayHeightMM(dpy, DefaultScreen (dpy));
	230	}
	231
	232	void wxClientDisplayRect(int x, int y, int width, int height)
	233	{
	234	// This is supposed to return desktop dimensions minus any window
	235	// manager panels, menus, taskbars, etc. If there is a way to do that
	236	// for this platform please fix this function, otherwise it defaults
	237	// to the entire desktop.
	238	if (x) *x = 0;
	239	if (y) *y = 0;
	240	wxDisplaySize(width, height);
	241	}
	242
	243	wxWindow* wxFindWindowAtPoint(const wxPoint& pt)
	244	{
	245	return wxGenericFindWindowAtPoint(pt);
	246	}
	247
	248
	249	// Configurable display in wxX11 and wxMotif
	250	static Display *gs_currentDisplay = NULL;
	251	static wxString gs_displayName;
	252
	253	WXDisplay *wxGetDisplay()
	254	{
	255	return (WXDisplay *)gs_currentDisplay;
	256	}
	257
	258	// close the current display
	259	void wxCloseDisplay()
	260	{
	261	if ( gs_currentDisplay )
	262	{
	263	if ( XCloseDisplay(gs_currentDisplay) != 0 )
	264	{
	265	wxLogWarning(_("Failed to close the display \"%s\""),
	266	gs_displayName.c_str());
	267	}
	268
	269	gs_currentDisplay = NULL;
	270	gs_displayName.clear();
	271	}
	272	}
	273
	274	bool wxSetDisplay(const wxString& displayName)
	275	{
	276	Display *dpy = XOpenDisplay
	277	(
	278	displayName.empty() ? NULL
	279	: (const char *)displayName.mb_str()
	280	);
	281
	282	if ( !dpy )
	283	{
	284	wxLogError(_("Failed to open display \"%s\"."), displayName.c_str());
	285	return false;
	286	}
	287
	288	wxCloseDisplay();
	289
	290	gs_currentDisplay = dpy;
	291	gs_displayName = displayName;
	292
	293	return true;
	294	}
	295
	296	wxString wxGetDisplayName()
	297	{
	298	return gs_displayName;
	299	}
	300
	301	#include "wx/module.h"
	302
	303	// the module responsible for closing the X11 display at the program end
	304	class wxX11DisplayModule : public wxModule
	305	{
	306	public:
	307	virtual bool OnInit() { return true; }
	308	virtual void OnExit() { wxCloseDisplay(); }
	309
	310	private:
	311	DECLARE_DYNAMIC_CLASS(wxX11DisplayModule)
	312	};
	313
	314	IMPLEMENT_DYNAMIC_CLASS(wxX11DisplayModule, wxModule)
	315
	316	// ----------------------------------------------------------------------------
	317	// Some colour manipulation routines
	318	// ----------------------------------------------------------------------------
	319
	320	void wxHSVToXColor(wxHSV hsv,XColor rgb)
	321	{
	322	int h = hsv->h;
	323	int s = hsv->s;
	324	int v = hsv->v;
	325	int r = 0, g = 0, b = 0;
	326	int i, f;
	327	int p, q, t;
	328	s = (s * wxMAX_RGB) / wxMAX_SV;
	329	v = (v * wxMAX_RGB) / wxMAX_SV;
	330	if (h == 360) h = 0;
	331	if (s == 0) { h = 0; r = g = b = v; }
	332	i = h / 60;
	333	f = h % 60;
	334	p = v * (wxMAX_RGB - s) / wxMAX_RGB;
	335	q = v * (wxMAX_RGB - s * f / 60) / wxMAX_RGB;
	336	t = v * (wxMAX_RGB - s * (60 - f) / 60) / wxMAX_RGB;
	337	switch (i)
	338	{
	339	case 0: r = v, g = t, b = p; break;
	340	case 1: r = q, g = v, b = p; break;
	341	case 2: r = p, g = v, b = t; break;
	342	case 3: r = p, g = q, b = v; break;
	343	case 4: r = t, g = p, b = v; break;
	344	case 5: r = v, g = p, b = q; break;
	345	}
	346	rgb->red = r << 8;
	347	rgb->green = g << 8;
	348	rgb->blue = b << 8;
	349	}
	350
	351	void wxXColorToHSV(wxHSV hsv,XColor rgb)
	352	{
	353	int r = rgb->red >> 8;
	354	int g = rgb->green >> 8;
	355	int b = rgb->blue >> 8;
	356	int maxv = wxMax3(r, g, b);
	357	int minv = wxMin3(r, g, b);
	358	int h = 0, s, v;
	359	v = maxv;
	360	if (maxv) s = (maxv - minv) * wxMAX_RGB / maxv;
	361	else s = 0;
	362	if (s == 0) h = 0;
	363	else
	364	{
	365	int rc, gc, bc, hex = 0;
	366	rc = (maxv - r) * wxMAX_RGB / (maxv - minv);
	367	gc = (maxv - g) * wxMAX_RGB / (maxv - minv);
	368	bc = (maxv - b) * wxMAX_RGB / (maxv - minv);
	369	if (r == maxv) { h = bc - gc, hex = 0; }
	370	else if (g == maxv) { h = rc - bc, hex = 2; }
	371	else if (b == maxv) { h = gc - rc, hex = 4; }
	372	h = hex * 60 + (h * 60 / wxMAX_RGB);
	373	if (h < 0) h += 360;
	374	}
	375	hsv->h = h;
	376	hsv->s = (s * wxMAX_SV) / wxMAX_RGB;
	377	hsv->v = (v * wxMAX_SV) / wxMAX_RGB;
	378	}
	379
	380	void wxAllocNearestColor(Display d,Colormap cmp,XColor xc)
	381	{
	382	#if !wxUSE_NANOX
	383	int llp;
	384
	385	int screen = DefaultScreen(d);
	386	int num_colors = DisplayCells(d,screen);
	387
	388	XColor *color_defs = new XColor[num_colors];
	389	for(llp = 0;llp < num_colors;llp++) color_defs[llp].pixel = llp;
	390	XQueryColors(d,cmp,color_defs,num_colors);
	391
	392	wxHSV hsv_defs, hsv;
	393	wxXColorToHSV(&hsv,xc);
	394
	395	int diff, min_diff = 0, pixel = 0;
	396
	397	for(llp = 0;llp < num_colors;llp++)
	398	{
	399	wxXColorToHSV(&hsv_defs,&color_defs[llp]);
	400	diff = wxSIGN(wxH_WEIGHT * (hsv.h - hsv_defs.h)) +
	401	wxSIGN(wxS_WEIGHT * (hsv.s - hsv_defs.s)) +
	402	wxSIGN(wxV_WEIGHT * (hsv.v - hsv_defs.v));
	403	if (llp == 0) min_diff = diff;
	404	if (min_diff > diff) { min_diff = diff; pixel = llp; }
	405	if (min_diff == 0) break;
	406	}
	407
	408	xc -> red = color_defs[pixel].red;
	409	xc -> green = color_defs[pixel].green;
	410	xc -> blue = color_defs[pixel].blue;
	411	xc -> flags = DoRed \| DoGreen \| DoBlue;
	412
	413	/* FIXME, TODO
	414	if (!XAllocColor(d,cmp,xc))
	415	cout << "wxAllocNearestColor : Warning : Cannot find nearest color !\n";
	416	*/
	417
	418	delete[] color_defs;
	419	#endif
	420	}
	421
	422	void wxAllocColor(Display d,Colormap cmp,XColor xc)
	423	{
	424	if (!XAllocColor(d,cmp,xc))
	425	{
	426	// cout << "wxAllocColor : Warning : Can not allocate color, attempt find nearest !\n";
	427	wxAllocNearestColor(d,cmp,xc);
	428	}
	429	}
	430
	431	#ifdef __WXDEBUG__
	432	wxString wxGetXEventName(XEvent& event)
	433	{
	434	#if wxUSE_NANOX
	435	wxString str(wxT("(some event)"));
	436	return str;
	437	#else
	438	int type = event.xany.type;
	439	static char* event_name[] = {
	440	"", "unknown(-)", // 0-1
	441	"KeyPress", "KeyRelease", "ButtonPress", "ButtonRelease", // 2-5
	442	"MotionNotify", "EnterNotify", "LeaveNotify", "FocusIn", // 6-9
	443	"FocusOut", "KeymapNotify", "Expose", "GraphicsExpose", // 10-13
	444	"NoExpose", "VisibilityNotify", "CreateNotify", // 14-16
	445	"DestroyNotify", "UnmapNotify", "MapNotify", "MapRequest",// 17-20
	446	"ReparentNotify", "ConfigureNotify", "ConfigureRequest", // 21-23
	447	"GravityNotify", "ResizeRequest", "CirculateNotify", // 24-26
	448	"CirculateRequest", "PropertyNotify", "SelectionClear", // 27-29
	449	"SelectionRequest", "SelectionNotify", "ColormapNotify", // 30-32
	450	"ClientMessage", "MappingNotify", // 33-34
	451	"unknown(+)"}; // 35
	452	type = wxMin(35, type); type = wxMax(1, type);
	453	return wxString::FromAscii(event_name[type]);
	454	#endif
	455	}
	456	#endif
	457
	458	bool wxWindowIsVisible(Window win)
	459	{
	460	XWindowAttributes wa;
	461	XGetWindowAttributes(wxGlobalDisplay(), win, &wa);
	462
	463	return (wa.map_state == IsViewable);
	464	}