X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f9488c6611f51a0138b0dfceeb39038209054c4f..47e59154157bb013ce255a4efa7a615574c974f7:/src/motif/utils.cpp diff --git a/src/motif/utils.cpp b/src/motif/utils.cpp index 706d09a125..84bc1a6d9a 100644 --- a/src/motif/utils.cpp +++ b/src/motif/utils.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: utils.cpp +// Name: src/motif/utils.cpp // Purpose: Various utilities // Author: Julian Smart // Modified by: @@ -17,12 +17,1011 @@ // headers // ---------------------------------------------------------------------------- -#include "wx/setup.h" +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" #ifdef __VMS #define XtDisplay XTDISPLAY #endif -#include "../src/x11/utils.cpp" -//#error no longer needed - wxX11 utils.cpp used instead +#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 + +#if (defined(__SUNCC__) || defined(__CLCC__)) + #include +#endif + +#ifdef __VMS__ +#pragma message disable nosimpint +#endif + +#include "wx/unix/execute.h" + +#include +#include + +#include "wx/motif/private.h" + +#if wxUSE_RESOURCES +#include "X11/Xresource.h" +#endif + +#include "X11/Xutil.h" + +#ifdef __VMS__ +#pragma message enable nosimpint +#endif + +// ---------------------------------------------------------------------------- +// private functions +// ---------------------------------------------------------------------------- + +// Yuck this is really BOTH site and platform dependent +// so we should use some other strategy! +#ifdef sun + #define DEFAULT_XRESOURCE_DIR "/usr/openwin/lib/app-defaults" +#else + #define DEFAULT_XRESOURCE_DIR "/usr/lib/X11/app-defaults" +#endif + +#if wxUSE_RESOURCES +static char *GetIniFile (char *dest, const char *filename); +#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; +} + + +// ---------------------------------------------------------------------------- +// Reading and writing resources (eg WIN.INI, .Xdefaults) +// ---------------------------------------------------------------------------- + +#if wxUSE_RESOURCES + +// Read $HOME for what it says is home, if not +// read $USER or $LOGNAME for user name else determine +// the Real User, then determine the Real home dir. +static char * GetIniFile (char *dest, const char *filename) +{ + char *home = NULL; + if (filename && wxIsAbsolutePath(filename)) + { + strcpy(dest, filename); + } + else if ((home = wxGetUserHome()) != NULL) + { + strcpy(dest, home); + if (dest[strlen(dest) - 1] != '/') + strcat (dest, "/"); + if (filename == NULL) + { + if ((filename = getenv ("XENVIRONMENT")) == NULL) + filename = ".Xdefaults"; + } + else if (*filename != '.') + strcat (dest, "."); + strcat (dest, filename); + } else + { + dest[0] = '\0'; + } + return dest; +} + +static char *GetResourcePath(char *buf, const char *name, bool create = false) +{ + if (create && wxFileExists (name) ) { + strcpy(buf, name); + return buf; // Exists so ... + } + + if (*name == '/') + strcpy(buf, name); + else { + // Put in standard place for resource files if not absolute + strcpy (buf, DEFAULT_XRESOURCE_DIR); + strcat (buf, "/"); + strcat (buf, wxFileNameFromPath (name).c_str()); + } + + if (create) { + // Touch the file to create it + FILE *fd = fopen (buf, "w"); + if (fd) fclose (fd); + } + return buf; +} + +/* +* We have a cache for writing different resource files, +* which will only get flushed when we call wxFlushResources(). +* Build up a list of resource databases waiting to be written. +* +*/ + +wxList wxResourceCache (wxKEY_STRING); + +void +wxFlushResources (void) +{ + char nameBuffer[512]; + + wxNode *node = wxResourceCache.First (); + while (node) + { + const char *file = node->GetKeyString(); + // If file doesn't exist, create it first. + (void)GetResourcePath(nameBuffer, file, true); + + XrmDatabase database = (XrmDatabase) node->Data (); + XrmPutFileDatabase (database, nameBuffer); + XrmDestroyDatabase (database); + wxNode *next = node->Next (); + delete node; + node = next; + } +} + +static XrmDatabase wxResourceDatabase = 0; + +void wxXMergeDatabases (wxApp * theApp, Display * display); + +bool wxWriteResource(const wxString& section, const wxString& entry, const wxString& value, const wxString& file) +{ + char buffer[500]; + + (void) GetIniFile (buffer, file); + + XrmDatabase database; + wxNode *node = wxResourceCache.Find (buffer); + if (node) + database = (XrmDatabase) node->Data (); + else + { + database = XrmGetFileDatabase (buffer); + wxResourceCache.Append (buffer, (wxObject *) database); + } + + char resName[300]; + strcpy (resName, section.c_str()); + strcat (resName, "."); + strcat (resName, entry.c_str()); + + XrmPutStringResource (&database, resName, value); + return true; +} + +bool wxWriteResource(const wxString& section, const wxString& entry, float value, const wxString& file) +{ + char buf[50]; + sprintf(buf, "%.4f", value); + return wxWriteResource(section, entry, buf, file); +} + +bool wxWriteResource(const wxString& section, const wxString& entry, long value, const wxString& file) +{ + char buf[50]; + sprintf(buf, "%ld", value); + return wxWriteResource(section, entry, buf, file); +} + +bool wxWriteResource(const wxString& section, const wxString& entry, int value, const wxString& file) +{ + char buf[50]; + sprintf(buf, "%d", value); + return wxWriteResource(section, entry, buf, file); +} + +bool wxGetResource(const wxString& section, const wxString& entry, char **value, const wxString& file) +{ + if (!wxResourceDatabase) + { + Display *display = wxGlobalDisplay(); + wxXMergeDatabases (wxTheApp, display); + } + + XrmDatabase database; + + if (!file.empty()) + { + char buffer[500]; + + // Is this right? Trying to get it to look in the user's + // home directory instead of current directory -- JACS + (void) GetIniFile (buffer, file); + + wxNode *node = wxResourceCache.Find (buffer); + if (node) + database = (XrmDatabase) node->Data (); + else + { + database = XrmGetFileDatabase (buffer); + wxResourceCache.Append (buffer, (wxObject *) database); + } + } + else + database = wxResourceDatabase; + + XrmValue xvalue; + char *str_type[20]; + char buf[150]; + strcpy (buf, section); + strcat (buf, "."); + strcat (buf, entry); + + Bool success = XrmGetResource (database, buf, "*", str_type, + &xvalue); + // Try different combinations of upper/lower case, just in case... + if (!success) + { + buf[0] = (isupper (buf[0]) ? tolower (buf[0]) : toupper (buf[0])); + success = XrmGetResource (database, buf, "*", str_type, + &xvalue); + } + if (success) + { + if (*value) + delete[] *value; + + *value = new char[xvalue.size + 1]; + strncpy (*value, xvalue.addr, (int) xvalue.size); + return true; + } + return false; +} + +bool wxGetResource(const wxString& section, const wxString& entry, float *value, const wxString& file) +{ + char *s = NULL; + bool succ = wxGetResource(section, entry, (char **)&s, file); + if (succ) + { + *value = (float)strtod(s, NULL); + delete[] s; + return true; + } + else return false; +} + +bool wxGetResource(const wxString& section, const wxString& entry, long *value, const wxString& file) +{ + char *s = NULL; + bool succ = wxGetResource(section, entry, (char **)&s, file); + if (succ) + { + *value = strtol(s, NULL, 10); + delete[] s; + return true; + } + else return false; +} + +bool wxGetResource(const wxString& section, const wxString& entry, int *value, const wxString& file) +{ + char *s = NULL; + bool succ = wxGetResource(section, entry, (char **)&s, file); + if (succ) + { + // Handle True, False here + // True, Yes, Enables, Set or Activated + if (*s == 'T' || *s == 'Y' || *s == 'E' || *s == 'S' || *s == 'A') + *value = true; + // False, No, Disabled, Reset, Cleared, Deactivated + else if (*s == 'F' || *s == 'N' || *s == 'D' || *s == 'R' || *s == 'C') + *value = false; + // Handle as Integer + else + *value = (int) strtol (s, NULL, 10); + delete[] s; + return true; + } + else + return false; +} + +void wxXMergeDatabases (wxApp * theApp, Display * display) +{ + XrmDatabase homeDB, serverDB, applicationDB; + char filenamebuf[1024]; + + char *filename = &filenamebuf[0]; + char *environment; + wxString classname = theApp->GetClassName(); + char name[256]; + (void) strcpy (name, "/usr/lib/X11/app-defaults/"); + (void) strcat (name, classname.c_str()); + + /* Get application defaults file, if any */ + applicationDB = XrmGetFileDatabase (name); + (void) XrmMergeDatabases (applicationDB, &wxResourceDatabase); + + /* Merge server defaults, created by xrdb, loaded as a property of the root + * window when the server initializes and loaded into the display + * structure on XOpenDisplay; + * if not defined, use .Xdefaults + */ + + if (XResourceManagerString (display) != NULL) + { + serverDB = XrmGetStringDatabase (XResourceManagerString (display)); + } + else + { + (void) GetIniFile (filename, NULL); + serverDB = XrmGetFileDatabase (filename); + } + XrmMergeDatabases (serverDB, &wxResourceDatabase); + + /* Open XENVIRONMENT file, or if not defined, the .Xdefaults, + * and merge into existing database + */ + + if ((environment = getenv ("XENVIRONMENT")) == NULL) + { + size_t len; + environment = GetIniFile (filename, NULL); + len = strlen (environment); + wxString hostname = wxGetHostName(); + if ( !hostname.empty() ) + strncat(environment, hostname, 1024 - len); + } + homeDB = XrmGetFileDatabase (environment); + XrmMergeDatabases (homeDB, &wxResourceDatabase); +} + +#if 0 + +/* +* Not yet used but may be useful. +* +*/ +void +wxSetDefaultResources (const Widget w, const char **resourceSpec, const char *name) +{ + int i; + Display *dpy = XtDisplay (w); // Retrieve the display pointer + + XrmDatabase rdb = NULL; // A resource data base + + // Create an empty resource database + rdb = XrmGetStringDatabase (""); + + // Add the Component resources, prepending the name of the component + + i = 0; + while (resourceSpec[i] != NULL) + { + char buf[1000]; + + sprintf (buf, "*%s%s", name, resourceSpec[i++]); + XrmPutLineResource (&rdb, buf); + } + + // Merge them into the Xt database, with lowest precendence + + if (rdb) + { +#if (XlibSpecificationRelease>=5) + XrmDatabase db = XtDatabase (dpy); + XrmCombineDatabase (rdb, &db, False); +#else + XrmMergeDatabases (dpy->db, &rdb); + dpy->db = rdb; +#endif + } +} +#endif +// 0 + +#endif // wxUSE_RESOURCES + +// ---------------------------------------------------------------------------- +// 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 --> F7 + Ctrl+N --> CtrlN + Alt+k --> Metak + Ctrl+Shift+A --> Ctrl ShiftA + + 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 + if( plus == wxString::npos && minus == wxString::npos ) + { + strcat( buf, "" ); + 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) +{ + // 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) +{ + 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 XmStringCreateLtoR((char *)str.c_str(), XmSTRING_DEFAULT_CHARSET); +} + +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.SelectObject(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; +}