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#include <Xw_Extension.h>
/* ifdef then trace on */
#ifdef TRACE
#define TRACE_SET_HARD_CURSOR
#endif
/*
XW_STATUS Xw_set_hard_cursor (awindow,type,grab,r,g,b)
XW_EXT_WINDOW *awindow
unsigned int type Cursor shape id
float r,g,b Cursor Color components in [0,1] space
int grab Grabbing flag .
Associate the cursor to the window
cursor must be one of "/usr/include/X11/cursorfont.h"
NOTE than :
1) If grabbing flag is True,the cursor is grabbed to this Window,
You can received Mouse Events outside of this Window .
2) If type is 0,this deactivated the hard cursor .
Returns XW_ERROR if cursorId is out of range
Returns XW_SUCCESS if successful
*/
static Cursor CursorList[MAXCURSOR] ;
#ifdef XW_PROTOTYPE
XW_STATUS Xw_set_hard_cursor (void *awindow,int type,int grab,float r,float g,float b)
#else
XW_STATUS Xw_set_hard_cursor (awindow,type,grab,r,g,b)
void *awindow ;
int type;
float r,g,b ;
#endif /*XW_PROTOTYPE*/
{
XW_EXT_WINDOW *pwindow = (XW_EXT_WINDOW*)awindow ;
XW_EXT_DISPLAY *pdisplay = pwindow->connexion ;
XColor fcolor,bcolor ;
XW_STATUS status ;
int index,grabstatus ;
if( !Xw_isdefine_window(pwindow) ) {
/*ERROR*Bad EXT_WINDOW Address*/
Xw_set_error(24,"Xw_set_hard_cursor",pwindow) ;
return (XW_ERROR) ;
}
if( type < 0 || type >= MAXCURSOR ) {
/*WARNING*Bad Cursor type*/
Xw_set_error(70,"Xw_set_hard_cursor",&type) ;
return (XW_ERROR) ;
}
if( type ) {
if( !CursorList[type] ) {
CursorList[type] = XCreateFontCursor(_DISPLAY,type) ;
}
status = Xw_get_color_index(_COLORMAP,r,g,b,&index) ;
if( !status ) return (XW_ERROR) ;
fcolor.pixel = _COLORMAP->pixels[index] ;
fcolor.red = (short unsigned int )( r * 0xFFFF) ;
fcolor.green = (short unsigned int )( g * 0xFFFF) ;
fcolor.blue = (short unsigned int )( b * 0xFFFF) ;
if( _CLASS != TrueColor ) {
XQueryColor(_DISPLAY,_COLORMAP->info.colormap,&fcolor) ;
}
status = Xw_get_color_index(_COLORMAP,1.-r,1.-g,1.-b,&index) ;
if( !status ) return (XW_ERROR) ;
bcolor.pixel = _COLORMAP->pixels[index] ;
bcolor.red = (short unsigned int )( (1.-r) * 0xFFFF) ;
bcolor.green = (short unsigned int )( (1.-g) * 0xFFFF) ;
bcolor.blue = (short unsigned int )( (1.-b) * 0xFFFF) ;
if( _CLASS != TrueColor ) {
XQueryColor(_DISPLAY,_COLORMAP->info.colormap,&bcolor) ;
}
XRecolorCursor(_DISPLAY,CursorList[type],&fcolor,&bcolor) ;
if( grab ) {
grabstatus = XGrabPointer(_DISPLAY,_WINDOW,False,_EVENT_MASK,
GrabModeAsync,GrabModeAsync,
_DROOT,CursorList[type],CurrentTime);
if( grabstatus == GrabSuccess ) {
_DGRAB = _WINDOW ;
} else {
/*Cann't GRAB Cursor id on this Window*/
Xw_set_error(98,"Xw_set_hard_cursor",&type) ;
return (XW_ERROR) ;
}
} else {
if( _DGRAB ) {
_DGRAB = 0 ;
XUngrabPointer(_DISPLAY,CurrentTime) ;
}
XDefineCursor(_DISPLAY,_WINDOW,CursorList[type]) ;
}
} else {
if( grab ) {
grabstatus = XGrabPointer(_DISPLAY,_WINDOW,False,_EVENT_MASK,
GrabModeAsync,GrabModeAsync,
_DROOT,None,CurrentTime);
if( grabstatus == GrabSuccess ) {
_DGRAB = _WINDOW ;
} else {
/*Cann't GRAB Cursor id on this Window*/
Xw_set_error(98,"Xw_set_hard_cursor",&type) ;
return (XW_ERROR) ;
}
} else {
if( _DGRAB ) {
_DGRAB = 0 ;
XUngrabPointer(_DISPLAY,CurrentTime) ;
}
XUndefineCursor(_DISPLAY,_WINDOW) ;
}
}
#ifdef TRACE_SET_HARD_CURSOR
if( Xw_get_trace() ) {
printf (" Xw_set_hard_cursor(%lx,%d,%d,%f,%f,%f)\n",
(long ) pwindow,type,grab,r,g,b) ;
}
#endif
return (XW_SUCCESS);
}
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