/* ---------------------------------------------------------------------------
* calculates the bounding box of the buffer
*/
void
SetBufferBoundingBox (BufferType *Buffer)
{
BoxType *box = GetDataBoundingBox (Buffer->Data);
if (box)
Buffer->BoundingBox = *box;
}
static int
autocrop (int argc, char **argv, Coord x, Coord y)
{
// int changed = 0;
Coord dx, dy, pad;
BoxType *box;
box = GetDataBoundingBox (PCB->Data); /* handy! */
if (!box || (box->X1 == box->X2 || box->Y1 == box->Y2))
{
/* board would become degenerate */
return 0;
}
/*
* Now X1/Y1 are the distance to move the left/top edge
* (actually moving all components to the left/up) such that
* the exact edge of the leftmost/topmost component would touch
* the edge. Reduce the move by the edge relief requirement XXX
* and expand the board by the same amount.
*/
pad = PCB->minWid * 5; /* XXX real edge clearance */
dx = -box->X1 + pad;
dy = -box->Y1 + pad;
box->X2 += pad;
box->Y2 += pad;
/*
* Round move to keep components grid-aligned, then translate the
* upper coordinates into the new space.
*/
dx -= dx % (long) PCB->Grid;
dy -= dy % (long) PCB->Grid;
box->X2 += dx;
box->Y2 += dy;
/*
* Avoid touching any data if there's nothing to do.
*/
if (dx == 0 && dy == 0 && PCB->MaxWidth == box->X2
&& PCB->MaxHeight == box->Y2)
{
return 0;
}
/* Resize -- XXX cannot be undone */
PCB->MaxWidth = box->X2;
PCB->MaxHeight = box->Y2;
MoveAll (dx, dy);
IncrementUndoSerialNumber ();
Redraw ();
SetChangedFlag (1);
return 0;
}
