src/motif/utils.cpp

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

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

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

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

#ifdef __VMS
#define XtDisplay XTDISPLAY
#endif

#include "wx/utils.h"

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

#include "wx/apptrait.h"
#include "wx/evtloop.h"
#include "wx/motif/private/timer.h"

#include <string.h>

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

#ifdef __VMS__
#pragma message disable nosimpint
#endif

#include "wx/unix/execute.h"

#include <Xm/Xm.h>
#include <Xm/Frame.h>

#include "wx/motif/private.h"

#include "X11/Xutil.h"

#ifdef __VMS__
#pragma message enable nosimpint
#endif


// ============================================================================
// implementation
// ============================================================================

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

// Consume all events until no more left
void wxFlushEvents(WXDisplay* wxdisplay)
{
    Display *display = (Display*)wxdisplay;
    wxEventLoop evtLoop;

    XSync (display, False);

    while (evtLoop.Pending())
    {
        XFlush (display);
        evtLoop.Dispatch();
    }
}

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

static void xt_notify_end_process(XtPointer data, int *WXUNUSED(fid),
                                  XtInputId *id)
{
    wxEndProcessData *proc_data = (wxEndProcessData *)data;

    wxHandleProcessTermination(proc_data);

    // VZ: I think they should be the same...
    wxASSERT( (int)*id == proc_data->tag );

    XtRemoveInput(*id);
}

int wxAddProcessCallback(wxEndProcessData *proc_data, int fd)
{
    XtInputId id = XtAppAddInput((XtAppContext) wxTheApp->GetAppContext(),
                                 fd,
                                 (XtPointer *) XtInputReadMask,
                                 (XtInputCallbackProc) xt_notify_end_process,
                                 (XtPointer) proc_data);

    return (int)id;
}

// ----------------------------------------------------------------------------
// 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 (wxGlobalDisplay(), 0);
}
#endif

wxPortId wxGUIAppTraits::GetToolkitVersion(int *verMaj, int *verMin) const
{
    // XmVERSION and XmREVISION are defined in Xm/Xm.h
    if ( verMaj )
        *verMaj = XmVERSION;
    if ( verMin )
        *verMin = XmREVISION;

    return wxPORT_MOTIF;
}

wxEventLoopBase* wxGUIAppTraits::CreateEventLoop()
{
    return new wxEventLoop;
}

wxTimerImpl* wxGUIAppTraits::CreateTimerImpl(wxTimer* timer)
{
    return new wxMotifTimerImpl(timer);
}

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

void wxGetMousePosition( int* x, int* y )
{
#if wxUSE_NANOX
    // TODO
    *x = 0;
    *y = 0;
#else
    XMotionEvent xev;
    Window root, child;
    XQueryPointer(wxGlobalDisplay(),
                  DefaultRootWindow(wxGlobalDisplay()),
                  &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 = wxGlobalDisplay();

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

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

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

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

    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);
}


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

WXDisplay *wxGetDisplay()
{
    if (gs_currentDisplay)
        return gs_currentDisplay;
    else if (wxTheApp)
        return wxTheApp->GetInitialDisplay();
    return NULL;
}

bool wxSetDisplay(const wxString& display_name)
{
    gs_displayName = display_name;

    if ( display_name.empty() )
    {
        gs_currentDisplay = NULL;

        return true;
    }
    else
    {
        Cardinal argc = 0;

        Display *display = XtOpenDisplay((XtAppContext) wxTheApp->GetAppContext(),
            display_name.c_str(),
            wxTheApp->GetAppName().c_str(),
            wxTheApp->GetClassName().c_str(),
            NULL,
#if XtSpecificationRelease < 5
            0, &argc,
#else
            0, (int *)&argc,
#endif
            NULL);

        if (display)
        {
            gs_currentDisplay = (WXDisplay*) display;
            return true;
        }
        else
            return false;
    }
}

wxString wxGetDisplayName()
{
    return gs_displayName;
}

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

// ----------------------------------------------------------------------------
// 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 = (unsigned short)(r << 8);
    rgb->green = (unsigned short)(g << 8);
    rgb->blue = (unsigned short)(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[] = {
        wxMOTIF_STR(""), wxMOTIF_STR("unknown(-)"),                                         // 0-1
        wxMOTIF_STR("KeyPress"), wxMOTIF_STR("KeyRelease"), wxMOTIF_STR("ButtonPress"), wxMOTIF_STR("ButtonRelease"), // 2-5
        wxMOTIF_STR("MotionNotify"), wxMOTIF_STR("EnterNotify"), wxMOTIF_STR("LeaveNotify"), wxMOTIF_STR("FocusIn"),  // 6-9
        wxMOTIF_STR("FocusOut"), wxMOTIF_STR("KeymapNotify"), wxMOTIF_STR("Expose"), wxMOTIF_STR("GraphicsExpose"),   // 10-13
        wxMOTIF_STR("NoExpose"), wxMOTIF_STR("VisibilityNotify"), wxMOTIF_STR("CreateNotify"),           // 14-16
        wxMOTIF_STR("DestroyNotify"), wxMOTIF_STR("UnmapNotify"), wxMOTIF_STR("MapNotify"), wxMOTIF_STR("MapRequest"),// 17-20
        wxMOTIF_STR("ReparentNotify"), wxMOTIF_STR("ConfigureNotify"), wxMOTIF_STR("ConfigureRequest"),  // 21-23
        wxMOTIF_STR("GravityNotify"), wxMOTIF_STR("ResizeRequest"), wxMOTIF_STR("CirculateNotify"),      // 24-26
        wxMOTIF_STR("CirculateRequest"), wxMOTIF_STR("PropertyNotify"), wxMOTIF_STR("SelectionClear"),   // 27-29
        wxMOTIF_STR("SelectionRequest"), wxMOTIF_STR("SelectionNotify"), wxMOTIF_STR("ColormapNotify"),  // 30-32
        wxMOTIF_STR("ClientMessage"), wxMOTIF_STR("MappingNotify"),                         // 33-34
        wxMOTIF_STR("unknown(+)")};                                            // 35
    type = wxMin(35, type); type = wxMax(1, type);
    wxString str(event_name[type]);
    return str;
#endif
}
#endif

// ----------------------------------------------------------------------------
// accelerators
// ----------------------------------------------------------------------------

// Find the letter corresponding to the mnemonic, for Motif
char wxFindMnemonic (const char *s)
{
    char mnem = 0;
    int len = strlen (s);
    int i;

    for (i = 0; i < len; i++)
    {
        if (s[i] == '&')
        {
            // Carefully handle &&
            if ((i + 1) <= len && s[i + 1] == '&')
                i++;
            else
            {
                mnem = s[i + 1];
                break;
            }
        }
    }
    return mnem;
}

char* wxFindAccelerator( const char *s )
{
#if 1
    wxUnusedVar(s);
    // VZ: this function returns incorrect keysym which completely breaks kbd
    //     handling
    return NULL;
#else
    // The accelerator text is after the \t char.
    s = strchr( s, '\t' );

    if( !s ) return NULL;

    /*
    Now we need to format it as X standard:

      input            output

        F7           --> <Key>F7
        Ctrl+N       --> Ctrl<Key>N
        Alt+k        --> Meta<Key>k
        Ctrl+Shift+A --> Ctrl Shift<Key>A

        and handle Ctrl-N & similia
    */

    static char buf[256];

    buf[0] = '\0';
    wxString tmp = s + 1; // skip TAB
    size_t index = 0;

    while( index < tmp.length() )
    {
        size_t plus  = tmp.find( '+', index );
        size_t minus = tmp.find( '-', index );

        // neither '+' nor '-', add <Key>
        if( plus == wxString::npos && minus == wxString::npos )
        {
            strcat( buf, "<Key>" );
            strcat( buf, tmp.c_str() + index );

            return buf;
        }

        // OK: npos is big and positive
        size_t sep = wxMin( plus, minus );
        wxString mod = tmp.substr( index, sep - index );

        // Ctrl  -> Ctrl
        // Shift -> Shift
        // Alt   -> Meta
        if( mod == "Alt" )
            mod = "Meta";

        if( buf[0] )
            strcat( buf, " " );

        strcat( buf, mod.c_str() );

        index = sep + 1;
    }

    return NULL;
#endif
}

XmString wxFindAcceleratorText (const char *s)
{
#if 1
    wxUnusedVar(s);
    // VZ: this function returns incorrect keysym which completely breaks kbd
    //     handling
    return NULL;
#else
    // The accelerator text is after the \t char.
    s = strchr( s, '\t' );

    if( !s ) return NULL;

    return wxStringToXmString( s + 1 ); // skip TAB!
#endif
}

// Change a widget's foreground and background colours.
void wxDoChangeForegroundColour(WXWidget widget, wxColour& foregroundColour)
{
    if (!foregroundColour.Ok())
        return;

    // When should we specify the foreground, if it's calculated
    // by wxComputeColours?
    // Solution: say we start with the default (computed) foreground colour.
    // If we call SetForegroundColour explicitly for a control or window,
    // then the foreground is changed.
    // Therefore SetBackgroundColour computes the foreground colour, and
    // SetForegroundColour changes the foreground colour. The ordering is
    // important.

    XtVaSetValues ((Widget) widget,
        XmNforeground, foregroundColour.AllocColour(XtDisplay((Widget) widget)),
        NULL);
}

void wxDoChangeBackgroundColour(WXWidget widget, const wxColour& backgroundColour, bool changeArmColour)
{
    if (!backgroundColour.Ok())
        return;

    wxComputeColours (XtDisplay((Widget) widget), & backgroundColour,
        (wxColour*) NULL);

    XtVaSetValues ((Widget) widget,
        XmNbackground, g_itemColors[wxBACK_INDEX].pixel,
        XmNtopShadowColor, g_itemColors[wxTOPS_INDEX].pixel,
        XmNbottomShadowColor, g_itemColors[wxBOTS_INDEX].pixel,
        XmNforeground, g_itemColors[wxFORE_INDEX].pixel,
        NULL);

    if (changeArmColour)
        XtVaSetValues ((Widget) widget,
        XmNarmColor, g_itemColors[wxSELE_INDEX].pixel,
        NULL);
}

extern void wxDoChangeFont(WXWidget widget, const wxFont& font)
{
    // Lesstif 0.87 hangs here, but 0.93 does not; MBN: sometimes it does
#if !wxCHECK_LESSTIF() // || wxCHECK_LESSTIF_VERSION( 0, 93 )
    Widget w = (Widget)widget;
    XtVaSetValues( w,
                   wxFont::GetFontTag(), font.GetFontTypeC( XtDisplay(w) ),
                   NULL );
#else
    wxUnusedVar(widget);
    wxUnusedVar(font);
#endif

}

wxString wxXmStringToString( const XmString& xmString )
{
    char *txt;
    if( XmStringGetLtoR( xmString, XmSTRING_DEFAULT_CHARSET, &txt ) )
    {
        wxString str(txt);
        XtFree (txt);
        return str;
    }

    return wxEmptyString;
}

XmString wxStringToXmString( const wxString& str )
{
    return wxStringToXmString(str.mb_str());
}

XmString wxStringToXmString( const char* str )
{
    return XmStringCreateLtoR((char *)str, XmSTRING_DEFAULT_CHARSET);
}

// ----------------------------------------------------------------------------
// wxBitmap utility functions
// ----------------------------------------------------------------------------

// Creates a bitmap with transparent areas drawn in
// the given colour.
wxBitmap wxCreateMaskedBitmap(const wxBitmap& bitmap, const wxColour& colour)
{
    wxBitmap newBitmap(bitmap.GetWidth(),
                       bitmap.GetHeight(),
                       bitmap.GetDepth());
    wxMemoryDC destDC;
    wxMemoryDC srcDC;

    srcDC.SelectObjectAsSource(bitmap);
    destDC.SelectObject(newBitmap);

    wxBrush brush(colour, wxSOLID);
    destDC.SetBackground(brush);
    destDC.Clear();
    destDC.Blit(0, 0, bitmap.GetWidth(), bitmap.GetHeight(),
                &srcDC, 0, 0, wxCOPY, true);

    return newBitmap;
}

// ----------------------------------------------------------------------------
// Miscellaneous functions
// ----------------------------------------------------------------------------

WXWidget wxCreateBorderWidget( WXWidget parent, long style )
{
    Widget borderWidget = (Widget)NULL, parentWidget = (Widget)parent;

    if (style & wxSIMPLE_BORDER)
    {
        borderWidget = XtVaCreateManagedWidget
                                   (
                                    "simpleBorder",
                                    xmFrameWidgetClass, parentWidget,
                                    XmNshadowType, XmSHADOW_ETCHED_IN,
                                    XmNshadowThickness, 1,
                                    NULL
                                   );
    }
    else if (style & wxSUNKEN_BORDER)
    {
        borderWidget = XtVaCreateManagedWidget
                                   (
                                    "sunkenBorder",
                                    xmFrameWidgetClass, parentWidget,
                                    XmNshadowType, XmSHADOW_IN,
                                    NULL
                                   );
    }
    else if (style & wxRAISED_BORDER)
    {
        borderWidget = XtVaCreateManagedWidget
                                   (
                                    "raisedBorder",
                                    xmFrameWidgetClass, parentWidget,
                                    XmNshadowType, XmSHADOW_OUT,
                                    NULL
                                   );
    }

    return borderWidget;
}
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: src/motif/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	// ============================================================================
	13	// declarations
	14	// ============================================================================
	15
	16	// ----------------------------------------------------------------------------
	17	// headers
	18	// ----------------------------------------------------------------------------
	19
	20	// For compilers that support precompilation, includes "wx.h".
	21	#include "wx/wxprec.h"
	22
	23	#ifdef __VMS
	24	#define XtDisplay XTDISPLAY
	25	#endif
	26
	27	#include "wx/utils.h"
	28
	29	#ifndef WX_PRECOMP
	30	#include "wx/app.h"
	31	#include "wx/dcmemory.h"
	32	#include "wx/bitmap.h"
	33	#endif
	34
	35	#include "wx/apptrait.h"
	36	#include "wx/evtloop.h"
	37	#include "wx/motif/private/timer.h"
	38
	39	#include <string.h>
	40
	41	#if (defined(__SUNCC__) \|\| defined(__CLCC__))
	42	#include <sysent.h>
	43	#endif
	44
	45	#ifdef __VMS__
	46	#pragma message disable nosimpint
	47	#endif
	48
	49	#include "wx/unix/execute.h"
	50
	51	#include <Xm/Xm.h>
	52	#include <Xm/Frame.h>
	53
	54	#include "wx/motif/private.h"
	55
	56	#include "X11/Xutil.h"
	57
	58	#ifdef __VMS__
	59	#pragma message enable nosimpint
	60	#endif
	61
	62
	63	// ============================================================================
	64	// implementation
	65	// ============================================================================
	66
	67	// ----------------------------------------------------------------------------
	68	// async event processing
	69	// ----------------------------------------------------------------------------
	70
	71	// Consume all events until no more left
	72	void wxFlushEvents(WXDisplay* wxdisplay)
	73	{
	74	Display display = (Display)wxdisplay;
	75	wxEventLoop evtLoop;
	76
	77	XSync (display, False);
	78
	79	while (evtLoop.Pending())
	80	{
	81	XFlush (display);
	82	evtLoop.Dispatch();
	83	}
	84	}
	85
	86	// ----------------------------------------------------------------------------
	87	// wxExecute stuff
	88	// ----------------------------------------------------------------------------
	89
	90	static void xt_notify_end_process(XtPointer data, int *WXUNUSED(fid),
	91	XtInputId *id)
	92	{
	93	wxEndProcessData proc_data = (wxEndProcessData )data;
	94
	95	wxHandleProcessTermination(proc_data);
	96
	97	// VZ: I think they should be the same...
	98	wxASSERT( (int)*id == proc_data->tag );
	99
	100	XtRemoveInput(*id);
	101	}
	102
	103	int wxAddProcessCallback(wxEndProcessData *proc_data, int fd)
	104	{
	105	XtInputId id = XtAppAddInput((XtAppContext) wxTheApp->GetAppContext(),
	106	fd,
	107	(XtPointer *) XtInputReadMask,
	108	(XtInputCallbackProc) xt_notify_end_process,
	109	(XtPointer) proc_data);
	110
	111	return (int)id;
	112	}
	113
	114	// ----------------------------------------------------------------------------
	115	// misc
	116	// ----------------------------------------------------------------------------
	117
	118	// Emit a beeeeeep
	119	#ifndef __EMX__
	120	// on OS/2, we use the wxBell from wxBase library (src/os2/utils.cpp)
	121	void wxBell()
	122	{
	123	// Use current setting for the bell
	124	XBell (wxGlobalDisplay(), 0);
	125	}
	126	#endif
	127
	128	wxPortId wxGUIAppTraits::GetToolkitVersion(int verMaj, int verMin) const
	129	{
	130	// XmVERSION and XmREVISION are defined in Xm/Xm.h
	131	if ( verMaj )
	132	*verMaj = XmVERSION;
	133	if ( verMin )
	134	*verMin = XmREVISION;
	135
	136	return wxPORT_MOTIF;
	137	}
	138
	139	wxEventLoopBase* wxGUIAppTraits::CreateEventLoop()
	140	{
	141	return new wxEventLoop;
	142	}
	143
	144	wxTimerImpl* wxGUIAppTraits::CreateTimerImpl(wxTimer* timer)
	145	{
	146	return new wxMotifTimerImpl(timer);
	147	}
	148
	149	// ----------------------------------------------------------------------------
	150	// display info
	151	// ----------------------------------------------------------------------------
	152
	153	void wxGetMousePosition( int* x, int* y )
	154	{
	155	#if wxUSE_NANOX
	156	// TODO
	157	*x = 0;
	158	*y = 0;
	159	#else
	160	XMotionEvent xev;
	161	Window root, child;
	162	XQueryPointer(wxGlobalDisplay(),
	163	DefaultRootWindow(wxGlobalDisplay()),
	164	&root, &child,
	165	&(xev.x_root), &(xev.y_root),
	166	&(xev.x), &(xev.y),
	167	&(xev.state));
	168	*x = xev.x_root;
	169	*y = xev.y_root;
	170	#endif
	171	}
	172
	173	// Return true if we have a colour display
	174	bool wxColourDisplay()
	175	{
	176	return wxDisplayDepth() > 1;
	177	}
	178
	179	// Returns depth of screen
	180	int wxDisplayDepth()
	181	{
	182	Display *dpy = wxGlobalDisplay();
	183
	184	return DefaultDepth (dpy, DefaultScreen (dpy));
	185	}
	186
	187	// Get size of display
	188	void wxDisplaySize(int width, int height)
	189	{
	190	Display *dpy = wxGlobalDisplay();
	191
	192	if ( width )
	193	*width = DisplayWidth (dpy, DefaultScreen (dpy));
	194	if ( height )
	195	*height = DisplayHeight (dpy, DefaultScreen (dpy));
	196	}
	197
	198	void wxDisplaySizeMM(int width, int height)
	199	{
	200	Display *dpy = wxGlobalDisplay();
	201
	202	if ( width )
	203	*width = DisplayWidthMM(dpy, DefaultScreen (dpy));
	204	if ( height )
	205	*height = DisplayHeightMM(dpy, DefaultScreen (dpy));
	206	}
	207
	208	void wxClientDisplayRect(int x, int y, int width, int height)
	209	{
	210	// This is supposed to return desktop dimensions minus any window
	211	// manager panels, menus, taskbars, etc. If there is a way to do that
	212	// for this platform please fix this function, otherwise it defaults
	213	// to the entire desktop.
	214	if (x) *x = 0;
	215	if (y) *y = 0;
	216	wxDisplaySize(width, height);
	217	}
	218
	219
	220	// Configurable display in wxX11 and wxMotif
	221	static WXDisplay *gs_currentDisplay = NULL;
	222	static wxString gs_displayName;
	223
	224	WXDisplay *wxGetDisplay()
	225	{
	226	if (gs_currentDisplay)
	227	return gs_currentDisplay;
	228	else if (wxTheApp)
	229	return wxTheApp->GetInitialDisplay();
	230	return NULL;
	231	}
	232
	233	bool wxSetDisplay(const wxString& display_name)
	234	{
	235	gs_displayName = display_name;
	236
	237	if ( display_name.empty() )
	238	{
	239	gs_currentDisplay = NULL;
	240
	241	return true;
	242	}
	243	else
	244	{
	245	Cardinal argc = 0;
	246
	247	Display *display = XtOpenDisplay((XtAppContext) wxTheApp->GetAppContext(),
	248	display_name.c_str(),
	249	wxTheApp->GetAppName().c_str(),
	250	wxTheApp->GetClassName().c_str(),
	251	NULL,
	252	#if XtSpecificationRelease < 5
	253	0, &argc,
	254	#else
	255	0, (int *)&argc,
	256	#endif
	257	NULL);
	258
	259	if (display)
	260	{
	261	gs_currentDisplay = (WXDisplay*) display;
	262	return true;
	263	}
	264	else
	265	return false;
	266	}
	267	}
	268
	269	wxString wxGetDisplayName()
	270	{
	271	return gs_displayName;
	272	}
	273
	274	wxWindow* wxFindWindowAtPoint(const wxPoint& pt)
	275	{
	276	return wxGenericFindWindowAtPoint(pt);
	277	}
	278
	279	// ----------------------------------------------------------------------------
	280	// Some colour manipulation routines
	281	// ----------------------------------------------------------------------------
	282
	283	void wxHSVToXColor(wxHSV hsv,XColor rgb)
	284	{
	285	int h = hsv->h;
	286	int s = hsv->s;
	287	int v = hsv->v;
	288	int r = 0, g = 0, b = 0;
	289	int i, f;
	290	int p, q, t;
	291	s = (s * wxMAX_RGB) / wxMAX_SV;
	292	v = (v * wxMAX_RGB) / wxMAX_SV;
	293	if (h == 360) h = 0;
	294	if (s == 0) { h = 0; r = g = b = v; }
	295	i = h / 60;
	296	f = h % 60;
	297	p = v * (wxMAX_RGB - s) / wxMAX_RGB;
	298	q = v * (wxMAX_RGB - s * f / 60) / wxMAX_RGB;
	299	t = v * (wxMAX_RGB - s * (60 - f) / 60) / wxMAX_RGB;
	300	switch (i)
	301	{
	302	case 0: r = v, g = t, b = p; break;
	303	case 1: r = q, g = v, b = p; break;
	304	case 2: r = p, g = v, b = t; break;
	305	case 3: r = p, g = q, b = v; break;
	306	case 4: r = t, g = p, b = v; break;
	307	case 5: r = v, g = p, b = q; break;
	308	}
	309	rgb->red = (unsigned short)(r << 8);
	310	rgb->green = (unsigned short)(g << 8);
	311	rgb->blue = (unsigned short)(b << 8);
	312	}
	313
	314	void wxXColorToHSV(wxHSV hsv,XColor rgb)
	315	{
	316	int r = rgb->red >> 8;
	317	int g = rgb->green >> 8;
	318	int b = rgb->blue >> 8;
	319	int maxv = wxMax3(r, g, b);
	320	int minv = wxMin3(r, g, b);
	321	int h = 0, s, v;
	322	v = maxv;
	323	if (maxv) s = (maxv - minv) * wxMAX_RGB / maxv;
	324	else s = 0;
	325	if (s == 0) h = 0;
	326	else
	327	{
	328	int rc, gc, bc, hex = 0;
	329	rc = (maxv - r) * wxMAX_RGB / (maxv - minv);
	330	gc = (maxv - g) * wxMAX_RGB / (maxv - minv);
	331	bc = (maxv - b) * wxMAX_RGB / (maxv - minv);
	332	if (r == maxv) { h = bc - gc, hex = 0; }
	333	else if (g == maxv) { h = rc - bc, hex = 2; }
	334	else if (b == maxv) { h = gc - rc, hex = 4; }
	335	h = hex * 60 + (h * 60 / wxMAX_RGB);
	336	if (h < 0) h += 360;
	337	}
	338	hsv->h = h;
	339	hsv->s = (s * wxMAX_SV) / wxMAX_RGB;
	340	hsv->v = (v * wxMAX_SV) / wxMAX_RGB;
	341	}
	342
	343	void wxAllocNearestColor(Display d,Colormap cmp,XColor xc)
	344	{
	345	#if !wxUSE_NANOX
	346	int llp;
	347
	348	int screen = DefaultScreen(d);
	349	int num_colors = DisplayCells(d,screen);
	350
	351	XColor *color_defs = new XColor[num_colors];
	352	for(llp = 0;llp < num_colors;llp++) color_defs[llp].pixel = llp;
	353	XQueryColors(d,cmp,color_defs,num_colors);
	354
	355	wxHSV hsv_defs, hsv;
	356	wxXColorToHSV(&hsv,xc);
	357
	358	int diff, min_diff = 0, pixel = 0;
	359
	360	for(llp = 0;llp < num_colors;llp++)
	361	{
	362	wxXColorToHSV(&hsv_defs,&color_defs[llp]);
	363	diff = wxSIGN(wxH_WEIGHT * (hsv.h - hsv_defs.h)) +
	364	wxSIGN(wxS_WEIGHT * (hsv.s - hsv_defs.s)) +
	365	wxSIGN(wxV_WEIGHT * (hsv.v - hsv_defs.v));
	366	if (llp == 0) min_diff = diff;
	367	if (min_diff > diff) { min_diff = diff; pixel = llp; }
	368	if (min_diff == 0) break;
	369	}
	370
	371	xc -> red = color_defs[pixel].red;
	372	xc -> green = color_defs[pixel].green;
	373	xc -> blue = color_defs[pixel].blue;
	374	xc -> flags = DoRed \| DoGreen \| DoBlue;
	375
	376	/* FIXME, TODO
	377	if (!XAllocColor(d,cmp,xc))
	378	cout << "wxAllocNearestColor : Warning : Cannot find nearest color !\n";
	379	*/
	380
	381	delete[] color_defs;
	382	#endif
	383	}
	384
	385	void wxAllocColor(Display d,Colormap cmp,XColor xc)
	386	{
	387	if (!XAllocColor(d,cmp,xc))
	388	{
	389	// cout << "wxAllocColor : Warning : Can not allocate color, attempt find nearest !\n";
	390	wxAllocNearestColor(d,cmp,xc);
	391	}
	392	}
	393
	394	#ifdef __WXDEBUG__
	395	wxString wxGetXEventName(XEvent& event)
	396	{
	397	#if wxUSE_NANOX
	398	wxString str(wxT("(some event)"));
	399	return str;
	400	#else
	401	int type = event.xany.type;
	402	static char* event_name[] = {
	403	wxMOTIF_STR(""), wxMOTIF_STR("unknown(-)"), // 0-1
	404	wxMOTIF_STR("KeyPress"), wxMOTIF_STR("KeyRelease"), wxMOTIF_STR("ButtonPress"), wxMOTIF_STR("ButtonRelease"), // 2-5
	405	wxMOTIF_STR("MotionNotify"), wxMOTIF_STR("EnterNotify"), wxMOTIF_STR("LeaveNotify"), wxMOTIF_STR("FocusIn"), // 6-9
	406	wxMOTIF_STR("FocusOut"), wxMOTIF_STR("KeymapNotify"), wxMOTIF_STR("Expose"), wxMOTIF_STR("GraphicsExpose"), // 10-13
	407	wxMOTIF_STR("NoExpose"), wxMOTIF_STR("VisibilityNotify"), wxMOTIF_STR("CreateNotify"), // 14-16
	408	wxMOTIF_STR("DestroyNotify"), wxMOTIF_STR("UnmapNotify"), wxMOTIF_STR("MapNotify"), wxMOTIF_STR("MapRequest"),// 17-20
	409	wxMOTIF_STR("ReparentNotify"), wxMOTIF_STR("ConfigureNotify"), wxMOTIF_STR("ConfigureRequest"), // 21-23
	410	wxMOTIF_STR("GravityNotify"), wxMOTIF_STR("ResizeRequest"), wxMOTIF_STR("CirculateNotify"), // 24-26
	411	wxMOTIF_STR("CirculateRequest"), wxMOTIF_STR("PropertyNotify"), wxMOTIF_STR("SelectionClear"), // 27-29
	412	wxMOTIF_STR("SelectionRequest"), wxMOTIF_STR("SelectionNotify"), wxMOTIF_STR("ColormapNotify"), // 30-32
	413	wxMOTIF_STR("ClientMessage"), wxMOTIF_STR("MappingNotify"), // 33-34
	414	wxMOTIF_STR("unknown(+)")}; // 35
	415	type = wxMin(35, type); type = wxMax(1, type);
	416	wxString str(event_name[type]);
	417	return str;
	418	#endif
	419	}
	420	#endif
	421
	422	// ----------------------------------------------------------------------------
	423	// accelerators
	424	// ----------------------------------------------------------------------------
	425
	426	// Find the letter corresponding to the mnemonic, for Motif
	427	char wxFindMnemonic (const char *s)
	428	{
	429	char mnem = 0;
	430	int len = strlen (s);
	431	int i;
	432
	433	for (i = 0; i < len; i++)
	434	{
	435	if (s[i] == '&')
	436	{
	437	// Carefully handle &&
	438	if ((i + 1) <= len && s[i + 1] == '&')
	439	i++;
	440	else
	441	{
	442	mnem = s[i + 1];
	443	break;
	444	}
	445	}
	446	}
	447	return mnem;
	448	}
	449
	450	char* wxFindAccelerator( const char *s )
	451	{
	452	#if 1
	453	wxUnusedVar(s);
	454	// VZ: this function returns incorrect keysym which completely breaks kbd
	455	// handling
	456	return NULL;
	457	#else
	458	// The accelerator text is after the \t char.
	459	s = strchr( s, '\t' );
	460
	461	if( !s ) return NULL;
	462
	463	/*
	464	Now we need to format it as X standard:
	465
	466	input output
	467
	468	F7 --> <Key>F7
	469	Ctrl+N --> Ctrl<Key>N
	470	Alt+k --> Meta<Key>k
	471	Ctrl+Shift+A --> Ctrl Shift<Key>A
	472
	473	and handle Ctrl-N & similia
	474	*/
	475
	476	static char buf[256];
	477
	478	buf[0] = '\0';
	479	wxString tmp = s + 1; // skip TAB
	480	size_t index = 0;
	481
	482	while( index < tmp.length() )
	483	{
	484	size_t plus = tmp.find( '+', index );
	485	size_t minus = tmp.find( '-', index );
	486
	487	// neither '+' nor '-', add <Key>
	488	if( plus == wxString::npos && minus == wxString::npos )
	489	{
	490	strcat( buf, "<Key>" );
	491	strcat( buf, tmp.c_str() + index );
	492
	493	return buf;
	494	}
	495
	496	// OK: npos is big and positive
	497	size_t sep = wxMin( plus, minus );
	498	wxString mod = tmp.substr( index, sep - index );
	499
	500	// Ctrl -> Ctrl
	501	// Shift -> Shift
	502	// Alt -> Meta
	503	if( mod == "Alt" )
	504	mod = "Meta";
	505
	506	if( buf[0] )
	507	strcat( buf, " " );
	508
	509	strcat( buf, mod.c_str() );
	510
	511	index = sep + 1;
	512	}
	513
	514	return NULL;
	515	#endif
	516	}
	517
	518	XmString wxFindAcceleratorText (const char *s)
	519	{
	520	#if 1
	521	wxUnusedVar(s);
	522	// VZ: this function returns incorrect keysym which completely breaks kbd
	523	// handling
	524	return NULL;
	525	#else
	526	// The accelerator text is after the \t char.
	527	s = strchr( s, '\t' );
	528
	529	if( !s ) return NULL;
	530
	531	return wxStringToXmString( s + 1 ); // skip TAB!
	532	#endif
	533	}
	534
	535	// Change a widget's foreground and background colours.
	536	void wxDoChangeForegroundColour(WXWidget widget, wxColour& foregroundColour)
	537	{
	538	if (!foregroundColour.Ok())
	539	return;
	540
	541	// When should we specify the foreground, if it's calculated
	542	// by wxComputeColours?
	543	// Solution: say we start with the default (computed) foreground colour.
	544	// If we call SetForegroundColour explicitly for a control or window,
	545	// then the foreground is changed.
	546	// Therefore SetBackgroundColour computes the foreground colour, and
	547	// SetForegroundColour changes the foreground colour. The ordering is
	548	// important.
	549
	550	XtVaSetValues ((Widget) widget,
	551	XmNforeground, foregroundColour.AllocColour(XtDisplay((Widget) widget)),
	552	NULL);
	553	}
	554
	555	void wxDoChangeBackgroundColour(WXWidget widget, const wxColour& backgroundColour, bool changeArmColour)
	556	{
	557	if (!backgroundColour.Ok())
	558	return;
	559
	560	wxComputeColours (XtDisplay((Widget) widget), & backgroundColour,
	561	(wxColour*) NULL);
	562
	563	XtVaSetValues ((Widget) widget,
	564	XmNbackground, g_itemColors[wxBACK_INDEX].pixel,
	565	XmNtopShadowColor, g_itemColors[wxTOPS_INDEX].pixel,
	566	XmNbottomShadowColor, g_itemColors[wxBOTS_INDEX].pixel,
	567	XmNforeground, g_itemColors[wxFORE_INDEX].pixel,
	568	NULL);
	569
	570	if (changeArmColour)
	571	XtVaSetValues ((Widget) widget,
	572	XmNarmColor, g_itemColors[wxSELE_INDEX].pixel,
	573	NULL);
	574	}
	575
	576	extern void wxDoChangeFont(WXWidget widget, const wxFont& font)
	577	{
	578	// Lesstif 0.87 hangs here, but 0.93 does not; MBN: sometimes it does
	579	#if !wxCHECK_LESSTIF() // \|\| wxCHECK_LESSTIF_VERSION( 0, 93 )
	580	Widget w = (Widget)widget;
	581	XtVaSetValues( w,
	582	wxFont::GetFontTag(), font.GetFontTypeC( XtDisplay(w) ),
	583	NULL );
	584	#else
	585	wxUnusedVar(widget);
	586	wxUnusedVar(font);
	587	#endif
	588
	589	}
	590
	591	wxString wxXmStringToString( const XmString& xmString )
	592	{
	593	char *txt;
	594	if( XmStringGetLtoR( xmString, XmSTRING_DEFAULT_CHARSET, &txt ) )
	595	{
	596	wxString str(txt);
	597	XtFree (txt);
	598	return str;
	599	}
	600
	601	return wxEmptyString;
	602	}
	603
	604	XmString wxStringToXmString( const wxString& str )
	605	{
	606	return wxStringToXmString(str.mb_str());
	607	}
	608
	609	XmString wxStringToXmString( const char* str )
	610	{
	611	return XmStringCreateLtoR((char *)str, XmSTRING_DEFAULT_CHARSET);
	612	}
	613
	614	// ----------------------------------------------------------------------------
	615	// wxBitmap utility functions
	616	// ----------------------------------------------------------------------------
	617
	618	// Creates a bitmap with transparent areas drawn in
	619	// the given colour.
	620	wxBitmap wxCreateMaskedBitmap(const wxBitmap& bitmap, const wxColour& colour)
	621	{
	622	wxBitmap newBitmap(bitmap.GetWidth(),
	623	bitmap.GetHeight(),
	624	bitmap.GetDepth());
	625	wxMemoryDC destDC;
	626	wxMemoryDC srcDC;
	627
	628	srcDC.SelectObjectAsSource(bitmap);
	629	destDC.SelectObject(newBitmap);
	630
	631	wxBrush brush(colour, wxSOLID);
	632	destDC.SetBackground(brush);
	633	destDC.Clear();
	634	destDC.Blit(0, 0, bitmap.GetWidth(), bitmap.GetHeight(),
	635	&srcDC, 0, 0, wxCOPY, true);
	636
	637	return newBitmap;
	638	}
	639
	640	// ----------------------------------------------------------------------------
	641	// Miscellaneous functions
	642	// ----------------------------------------------------------------------------
	643
	644	WXWidget wxCreateBorderWidget( WXWidget parent, long style )
	645	{
	646	Widget borderWidget = (Widget)NULL, parentWidget = (Widget)parent;
	647
	648	if (style & wxSIMPLE_BORDER)
	649	{
	650	borderWidget = XtVaCreateManagedWidget
	651	(
	652	"simpleBorder",
	653	xmFrameWidgetClass, parentWidget,
	654	XmNshadowType, XmSHADOW_ETCHED_IN,
	655	XmNshadowThickness, 1,
	656	NULL
	657	);
	658	}
	659	else if (style & wxSUNKEN_BORDER)
	660	{
	661	borderWidget = XtVaCreateManagedWidget
	662	(
	663	"sunkenBorder",
	664	xmFrameWidgetClass, parentWidget,
	665	XmNshadowType, XmSHADOW_IN,
	666	NULL
	667	);
	668	}
	669	else if (style & wxRAISED_BORDER)
	670	{
	671	borderWidget = XtVaCreateManagedWidget
	672	(
	673	"raisedBorder",
	674	xmFrameWidgetClass, parentWidget,
	675	XmNshadowType, XmSHADOW_OUT,
	676	NULL
	677	);
	678	}
	679
	680	return borderWidget;
	681	}