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/*
// GG IMP060200 Xw_get_background_image signatuire change
*/
#include <Xw_Extension.h>
/* ifdef then trace on */
#ifdef TRACE
#define TRACE_GET_BACKGROUND_IMAGE
#endif
/*
XW_STATUS Xw_get_background_image (awindow,xc,yc,width,height):
XW_EXT_WINDOW *awindow
int xc,yc Image center location in pixels
int width,height Image size in pixels
Get the window Background from the actual Window
at the required Center location
returns ERROR if Image is outside of the window
returns SUCCESS if successful
*/
#ifdef XW_PROTOTYPE
XW_STATUS Xw_get_background_image (void* awindow,
int xc,int yc,int width,int height)
#else
XW_STATUS Xw_get_background_image (awindow,xc,yc,width,height)
void *awindow;
int xc,yc ;
int width,height ;
#endif /*XW_PROTOTYPE*/
{
XW_EXT_WINDOW *pwindow = (XW_EXT_WINDOW*)awindow;
XW_EXT_DISPLAY *pdisplay = pwindow->connexion ;
XW_STATUS status ;
XImage *pimage ;
int wx,wy ;
if( !Xw_isdefine_window(pwindow) ) {
/*ERROR*Bad EXT_WINDOW Address*/
Xw_set_error(24,"Xw_get_background_image",pwindow) ;
return (XW_ERROR) ;
}
wx = xc - width/2 ;
wy = yc - height/2 ;
if( _DGRAB ) {
wx += _X ; wy += _Y ;
if( (wx + width) < 0 || wx > _DWIDTH ||
(wy + height) < 0 || wy > _DHEIGHT ) {
/*WARNING*Try to Get Image from outside the display*/
Xw_set_error(45,"Xw_get_background_image",0) ;
return (XW_ERROR) ;
}
pimage = XGetImage(_DISPLAY,_DROOT,wx,wy,
width,height,AllPlanes,ZPixmap) ;
} else {
if( (wx + width) < 0 || wx > _WIDTH ||
(wy + height) < 0 || wy > _HEIGHT ) {
/*WARNING*Try to Get Image from outside the window*/
Xw_set_error(45,"Xw_get_background_image",0) ;
return (XW_ERROR) ;
}
pimage = XGetImage(_DISPLAY,_WINDOW,wx,wy,
width,height,AllPlanes,ZPixmap) ;
}
if( _BPIXMAP ) Xw_close_background_pixmap(pwindow) ;
if( _PIXMAP || _NWBUFFER > 0 ) {
status = Xw_open_background_pixmap(pwindow) ;
if( !status ) return (XW_ERROR) ;
for( wx=0 ; wx<_WIDTH ; wx += width ) {
for( wy=0 ; wy<_HEIGHT ; wy += height ) {
XPutImage(_DISPLAY,_BPIXMAP,pwindow->qgwind.gccopy,
pimage,0,0,wx,wy,width,height) ;
}
}
} else {
Pixmap pixmap = XCreatePixmap(_DISPLAY,_WINDOW,
width,height,_DEPTH);
if( !pixmap ) return (XW_ERROR) ;
XPutImage(_DISPLAY,pixmap,pwindow->qgwind.gccopy,
pimage,0,0,wx,wy,width,height) ;
XSetWindowBackgroundPixmap(_DISPLAY,_WINDOW,pixmap) ;
XFlush(_DISPLAY) ;
XFreePixmap(_DISPLAY,pixmap) ;
}
Xw_erase_window(pwindow) ;
#ifdef TRACE_GET_BACKGROUND_IMAGE
if( Xw_get_trace() ) {
printf (" Xw_get_background_image(%lx,%d,%d,%d,%d)\n",
(long ) pwindow,xc,yc,width,height);
}
#endif
return (XW_SUCCESS);
}
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