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#include <Xw_Extension.h>
/* ifdef then trace on */
#ifdef TRACE
#define TRACE_PUT_BACKGROUND_IMAGE
#define TRACE_CLEAR_BACKGROUND_IMAGE
#endif
#define OCC153 // bad memory management
/*
STATUS Xw_put_background_image (awindow,image,method):
XW_EXT_WINDOW *awindow
XW_EXT_IMAGEDATA *image Image structure
Aspect_FillMethod method Image fill method
Draw an image to the window background according to the fill method.
returns ERROR if NO Image is defined
returns SUCCESS if successful
STATUS Xw_clear_background_image (awindow):
XW_EXT_WINDOW *awindow
Clear the window background image
returns SUCCESS allways
STATUS Xw_update_background_image(awindow)
XW_EXT_WINDOW *awindow
Updates the window background from an image
according to the window size and fill method
returns SUCCESS if successful
STATUS Xw_set_background_pixmap(awindow,apixmap)
XW_EXT_WINDOW *awindow
Pixmap apixmap
Updates the window background from a user pixmap
returns SUCCESS if successful
STATUS Xw_get_background_pixmap(awindow,apixmap)
XW_EXT_WINDOW *awindow
Pixmap *apixmap
Returns the current background pixmap coming from
an image or a user pixmap
*/
#ifdef XW_PROTOTYPE
XW_STATUS Xw_put_background_image (void* awindow,void* aimage,Aspect_FillMethod method)
#else
XW_STATUS Xw_put_background_image (awindow,aimage,method)
void *awindow;
void *aimage ;
Aspect_FillMethod method;
#endif /*XW_PROTOTYPE*/
{
XW_EXT_WINDOW *pwindow = (XW_EXT_WINDOW*)awindow;
XW_EXT_IMAGEDATA *pimage = (XW_EXT_IMAGEDATA*) aimage ;
XW_STATUS status ;
if( !Xw_isdefine_window(pwindow) ) {
/*ERROR*Bad EXT_WINDOW Address*/
Xw_set_error(24,"Xw_put_background_image",pwindow) ;
return (XW_ERROR) ;
}
if( !Xw_isdefine_image(pimage) ) {
/*ERROR*Bad EXT_IMAGEDATA Address*/
Xw_set_error(25,"Xw_put_background_image",pimage) ;
return (XW_ERROR) ;
}
#ifdef OCC153
if( _BIMAGE )
{
if (_BIMAGE != pimage)
{
Xw_close_image(_BIMAGE);
_BIMAGE = pimage;
}
}
else
{
_BIMAGE = pimage;
}
#else
if( _BIMAGE ) Xw_close_image(_BIMAGE);
_BIMAGE = pimage;
#endif
_BMETHOD = method;
status = Xw_update_background_image(pwindow);
#ifdef TRACE_PUT_BACKGROUND_IMAGE
if( Xw_get_trace() )
printf (" Xw_put_background_image(%lx,%lx)\n",(long ) pwindow,(long ) pimage) ;
#endif
return status;
}
#ifdef XW_PROTOTYPE
XW_STATUS Xw_clear_background_image (void* awindow)
#else
XW_STATUS Xw_clear_background_image (awindow)
void *awindow;
#endif /*XW_PROTOTYPE*/
{
XW_EXT_WINDOW *pwindow = (XW_EXT_WINDOW*)awindow ;
if( _BIMAGE ) {
Xw_close_image( _BIMAGE );
_BIMAGE = NULL;
}
if( _BPIXMAP ) {
XFreePixmap(_DISPLAY,_BPIXMAP) ;
_BPIXMAP = 0 ;
}
XSetWindowBackgroundPixmap(_DISPLAY,_WINDOW,0) ;
Xw_erase_window(pwindow) ;
#ifdef TRACE_CLEAR_BACKGROUND_IMAGE
if( Xw_get_trace() ) {
printf (" Xw_clear_background_image(%lx)\n",(long ) pwindow) ;
}
#endif
return XW_SUCCESS;
}
#ifdef XW_PROTOTYPE
XW_STATUS Xw_update_background_image(void* awindow)
#else
XW_STATUS Xw_update_background_image(awindow)
void *awindow;
#endif
{
XW_EXT_WINDOW *pwindow = (XW_EXT_WINDOW*)awindow;
XW_EXT_IMAGEDATA *pimage = _BIMAGE;
XW_STATUS status;
int ix,iy,iwidth,iheight,wx,wy;
if( !Xw_isdefine_window(pwindow) ) {
/*ERROR*Bad EXT_WINDOW Address*/
Xw_set_error(24,"Xw_update_background_image",pwindow) ;
return (XW_ERROR) ;
}
if( !pimage ) return XW_ERROR;
ix = iy = wx = wy = 0 ;
iwidth = _IIMAGE->width;
iheight = _IIMAGE->height;
XImage *pximage = _IIMAGE ;
if( _BMETHOD == Aspect_FM_NONE ) {
if( iwidth > _WIDTH ) {
iwidth = _WIDTH;
}
if( iheight > _HEIGHT ) {
iheight = _HEIGHT;
}
} else if( _BMETHOD == Aspect_FM_CENTERED ) {
wx = (_WIDTH - iwidth)/2;
if( wx < 0 ) { ix = -wx; wx = 0; iwidth = _WIDTH; }
wy = (_HEIGHT - iheight)/2;
if( wy < 0 ) { iy = -wy; wy = 0; iheight = _HEIGHT; }
} else if( _BMETHOD == Aspect_FM_STRETCH ) {
float zoom = 1.;
if( iwidth != _WIDTH ) {
zoom = (float)_WIDTH/iwidth;
iwidth *= (int)zoom; iheight *= (int)zoom;
}
if( iheight != _HEIGHT ) {
zoom *= (float)_HEIGHT/iheight;
iwidth *= (int)zoom; iheight *= (int)zoom;
}
if( _ZIMAGE && (zoom == pimage->zoom) ) {
pximage = _ZIMAGE;
} else {
status = Xw_zoom_image(pimage,zoom);
if( status ) {
iwidth = _ZIMAGE->width;
iheight = _ZIMAGE->height;
wx = (_WIDTH - iwidth)/2;
if( wx < 0 ) { ix = -wx; wx = 0; iwidth = _WIDTH; }
wy = (_HEIGHT - iheight)/2;
if( wy < 0 ) { iy = -wy; wy = 0; iheight = _HEIGHT; }
pximage = _ZIMAGE;
}
}
}
if( _BPIXMAP ) Xw_close_background_pixmap(pwindow) ;
status = Xw_open_background_pixmap(pwindow) ;
if( !status ) return (XW_ERROR) ;
if( _BMETHOD != Aspect_FM_TILED ) {
XPutImage(_DISPLAY,_BPIXMAP,pwindow->qgwind.gccopy,
pximage,ix,iy,wx,wy,iwidth,iheight) ;
} else {
for( wy=0 ; wy<_HEIGHT ; wy += iheight ) {
for( wx=0 ; wx<_WIDTH ; wx += iwidth ) {
XPutImage(_DISPLAY,_BPIXMAP,pwindow->qgwind.gccopy,
pximage,ix,iy,wx,wy,iwidth,iheight) ;
}
}
}
XSetWindowBackgroundPixmap(_DISPLAY,_WINDOW,_BPIXMAP) ;
Xw_erase_window(pwindow) ;
#ifdef TRACE_PUT_BACKGROUND_IMAGE
if( Xw_get_trace() )
printf (" Xw_update_background_image(%lx)\n",(long ) pwindow) ;
#endif
return (XW_SUCCESS);
}
#ifdef XW_PROTOTYPE
XW_STATUS Xw_set_background_pixmap( void * awindow, Aspect_Handle apixmap )
#else
XW_STATUS Xw_set_background_pixmap( awindow, apixmap )
void * awindow;
Aspect_Handle apixmap;
#endif
{
XW_EXT_WINDOW * pwindow = ( XW_EXT_WINDOW * ) awindow;
if ( !Xw_isdefine_window( pwindow ) ) {
Xw_set_error( 24, "Xw_set_background_pixmap", pwindow );
return( XW_ERROR );
}
if ( !apixmap ) return XW_ERROR;
if( _BIMAGE ) {
Xw_close_image(_BIMAGE);
_BIMAGE = NULL;
}
if( _BPIXMAP ) XFreePixmap( _DISPLAY, _BPIXMAP );
_BPIXMAP = apixmap;
XSetWindowBackgroundPixmap( _DISPLAY,_WINDOW,_BPIXMAP);
Xw_erase_window(pwindow) ;
return( XW_SUCCESS );
#ifdef TRACE_PUT_BACKGROUND_IMAGE
if( Xw_get_trace() )
printf (" Xw_update_background_image(%lx)\n",(long ) pwindow) ;
#endif
}
#ifdef XW_PROTOTYPE
XW_STATUS Xw_get_background_pixmap( void * awindow, Aspect_Handle& apixmap )
#else
XW_STATUS Xw_get_background_pixmap( awindow, apixmap )
void * awindow;
Aspect_Handle& apixmap;
#endif
{
XW_EXT_WINDOW * pwindow = ( XW_EXT_WINDOW * ) awindow;
if ( !Xw_isdefine_window( pwindow ) ) {
Xw_set_error( 24, "Xw_get_background_pixmap", pwindow );
return( XW_ERROR );
}
if ( !_BPIXMAP ) return( XW_ERROR );
apixmap = _BPIXMAP;
return ( XW_SUCCESS );
}
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