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355b4d3de54b76db87439fa2142c7334a6e48f85
wxWidgets/src/motif/utils.cpp
Włodzimierz Skiba 355b4d3de5 wxMotif for OS/2 adjustements. Source cleaning. 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@35808 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2005-10-06 12:10:44 +00:00

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/////////////////////////////////////////////////////////////////////////////
// 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/setup.h"
#include "wx/utils.h"
#include "wx/apptrait.h"
#include "wx/app.h"
#include "wx/dcmemory.h"
#include "wx/bitmap.h"
#include "wx/evtloop.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"
#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
wxToolkitInfo& wxGUIAppTraits::GetToolkitInfo()
{
static wxToolkitInfo info;
info.shortName = _T("motif");
info.name = _T("wxMotif");
#ifdef __WXUNIVERSAL__
info.shortName << _T("univ");
info.name << _T("/wxUniversal");
#endif
// FIXME TODO
// This code is WRONG!! Does NOT return the
// Motif version of the libs but the X protocol
// version!
Display *display = wxGlobalDisplay();
if (display)
{
info.versionMajor = ProtocolVersion (display);
info.versionMinor = ProtocolRevision (display);
}
info.os = wxMOTIF_X;
return info;
}
// ----------------------------------------------------------------------------
// 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 --> <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)
{
// 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, 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;
}
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