void
BWCopy(Widget w, Position at_x, Position at_y, int value)
{
BitmapWidget BW = (BitmapWidget) w;
XImage *storage;
char *storage_data;
Dimension width, height;
if (QuerySet(BW->bitmap.mark.from_x, BW->bitmap.mark.from_y)) {
width = BW->bitmap.mark.to_x - BW->bitmap.mark.from_x + 1;
height = BW->bitmap.mark.to_y - BW->bitmap.mark.from_y + 1;
storage_data = CreateCleanData(Length(width, height));
storage = CreateBitmapImage(BW, storage_data, width, height);
CopyImageData(BW->bitmap.image, storage,
BW->bitmap.mark.from_x, BW->bitmap.mark.from_y,
BW->bitmap.mark.to_x, BW->bitmap.mark.to_y,
0, 0);
DrawImageData(BW, storage, at_x, at_y, value);
DestroyBitmapImage(&storage);
}
}
void
BWStore(Widget w)
{
BitmapWidget BW = (BitmapWidget) w;
Dimension width, height;
char *storage_data;
if (QuerySet(BW->bitmap.mark.from_x, BW->bitmap.mark.from_y)) {
DestroyBitmapImage(&BW->bitmap.storage);
width = BW->bitmap.mark.to_x - BW->bitmap.mark.from_x + 1;
height = BW->bitmap.mark.to_y - BW->bitmap.mark.from_y + 1;
storage_data = CreateCleanData(Length(width, height));
BW->bitmap.storage = CreateBitmapImage(BW,
storage_data,
width, height);
CopyImageData(BW->bitmap.image, BW->bitmap.storage,
BW->bitmap.mark.from_x, BW->bitmap.mark.from_y,
BW->bitmap.mark.to_x, BW->bitmap.mark.to_y,
0, 0);
}
}
/* ARGSUSED */
static void
SelectionCallback(Widget w, XtPointer cldat, Atom *selection, Atom *type,
XtPointer val, unsigned long *length, int *format)
{
XPointer value = (XPointer)val;
BitmapWidget BW = (BitmapWidget) w;
Pixmap *pixmap;
switch (*type) {
case XA_BITMAP:
case XA_PIXMAP:
DestroyBitmapImage(&BW->bitmap.storage);
pixmap = (Pixmap *) value;
BW->bitmap.storage = GetImage(BW, *pixmap);
XFree((char *)pixmap);
break;
default:
XtWarning(" selection request failed. BitmapWidget");
break;
}
BW->bitmap.selection.limbo = FALSE;
}
/* ARGSUSED */
static Boolean
ConvertSelection(Widget w, Atom *selection, Atom *target, Atom *type,
XtPointer *val_ret, unsigned long *length, int *format)
{
XPointer *value = (XPointer *)val_ret;
BitmapWidget BW = (BitmapWidget) w;
Pixmap *pixmap;
char *data;
XImage *image;
Dimension width, height;
switch (*target) {
/* XA_TARGETS undefined ?!?
case XA_TARGETS:
*type = XA_ATOM;
*value = (XPointer) bitmapClassRec.bitmap_class.targets;
*length = bitmapClassRec.bitmap_class.num_targets;
*format = 32;
return True;
*/
case XA_BITMAP:
case XA_PIXMAP:
if (BWQueryMarked(w)) {
width = BW->bitmap.mark.to_x - BW->bitmap.mark.from_x + 1;
height = BW->bitmap.mark.to_y - BW->bitmap.mark.from_y + 1;
data = CreateCleanData(Length(width, height));
image = CreateBitmapImage(BW, data, width, height);
CopyImageData(BW->bitmap.image, image,
BW->bitmap.mark.from_x, BW->bitmap.mark.from_y,
BW->bitmap.mark.to_x, BW->bitmap.mark.to_y, 0, 0);
pixmap = (Pixmap *) XtMalloc(sizeof(Pixmap));
*pixmap = GetPixmap(BW, image);
DestroyBitmapImage(&image);
}
else if (BWQueryStored(w)) {
pixmap = (Pixmap *) XtMalloc(sizeof(Pixmap));
*pixmap = GetPixmap(BW, BW->bitmap.storage);
}
else return False;
*type = XA_PIXMAP;
*value = (XPointer) pixmap;
*length = 1;
*format = 32;
return True;
default:
return False;
}
}
void
BWFold(Widget w)
{
BitmapWidget BW = (BitmapWidget) w;
Position x, y, new_x, new_y;
Dimension horiz, vert;
char *storage_data;
XImage *storage;
storage_data = CreateCleanData(Length(BW->bitmap.image->width,
BW->bitmap.image->height));
storage = CreateBitmapImage(BW, storage_data,
(Dimension) BW->bitmap.image->width,
(Dimension) BW->bitmap.image->height);
TransferImageData(BW->bitmap.image, storage);
BW->bitmap.fold ^= True;
horiz = (BW->bitmap.image->width + BW->bitmap.fold) / 2;
vert = (BW->bitmap.image->height + BW->bitmap.fold) / 2;
for (x = 0; x < BW->bitmap.image->width; x++)
for (y = 0; y < BW->bitmap.image->height; y++) {
new_x = (int)(x + horiz) % (int)BW->bitmap.image->width;
new_y = (int)(y + vert) % (int)BW->bitmap.image->height;
if(GetBit(BW->bitmap.image, new_x, new_y) !=
GetBit(storage, x, y))
InvertPoint(BW, new_x, new_y);
}
DestroyBitmapImage(&storage);
if (QuerySet(BW->bitmap.hot.x, BW->bitmap.hot.y))
BWSetHotSpot(w,
(Position)
((int)(BW->bitmap.hot.x+horiz)
%(int)BW->bitmap.image->width),
(Position)
((int)(BW->bitmap.hot.y+vert)
%(int)BW->bitmap.image->height)
);
}
