/* ---------------------------------------------------------------------------
* removes a polygon-point from a polygon
*/
static void *
RemovePolygonPoint (LayerTypePtr Layer,
PolygonTypePtr Polygon, PointTypePtr Point)
{
Cardinal point_idx;
Cardinal i;
Cardinal contour;
Cardinal contour_start, contour_end, contour_points;
point_idx = polygon_point_idx (Polygon, Point);
contour = polygon_point_contour (Polygon, point_idx);
contour_start = (contour == 0) ? 0 : Polygon->HoleIndex[contour - 1];
contour_end = (contour == Polygon->HoleIndexN) ? Polygon->PointN :
Polygon->HoleIndex[contour];
contour_points = contour_end - contour_start;
if (contour_points <= 3)
return RemovePolygonContour (Layer, Polygon, contour);
if (Layer->On)
ErasePolygon (Polygon);
/* insert the polygon-point into the undo list */
AddObjectToRemovePointUndoList (POLYGONPOINT_TYPE, Layer, Polygon, point_idx);
r_delete_entry (Layer->polygon_tree, (BoxType *) Polygon);
/* remove point from list, keep point order */
for (i = point_idx; i < Polygon->PointN - 1; i++)
Polygon->Points[i] = Polygon->Points[i + 1];
Polygon->PointN--;
/* Shift down indices of any holes */
for (i = 0; i < Polygon->HoleIndexN; i++)
if (Polygon->HoleIndex[i] > point_idx)
Polygon->HoleIndex[i]--;
SetPolygonBoundingBox (Polygon);
r_insert_entry (Layer->polygon_tree, (BoxType *) Polygon, 0);
RemoveExcessPolygonPoints (Layer, Polygon);
InitClip (PCB->Data, Layer, Polygon);
/* redraw polygon if necessary */
if (Layer->On)
{
DrawPolygon (Layer, Polygon);
if (!Bulk)
Draw ();
}
return NULL;
}
/* ---------------------------------------------------------------------------
* removes a polygon-point from a polygon and destroys the data
*/
static void *
DestroyPolygonPoint (LayerTypePtr Layer,
PolygonTypePtr Polygon, PointTypePtr Point)
{
Cardinal point_idx;
Cardinal i;
Cardinal contour;
Cardinal contour_start, contour_end, contour_points;
point_idx = polygon_point_idx (Polygon, Point);
contour = polygon_point_contour (Polygon, point_idx);
contour_start = (contour == 0) ? 0 : Polygon->HoleIndex[contour - 1];
contour_end = (contour == Polygon->HoleIndexN) ? Polygon->PointN :
Polygon->HoleIndex[contour];
contour_points = contour_end - contour_start;
if (contour_points <= 3)
return RemovePolygonContour (Layer, Polygon, contour);
r_delete_entry (Layer->polygon_tree, (BoxType *) Polygon);
/* remove point from list, keep point order */
for (i = point_idx; i < Polygon->PointN - 1; i++)
Polygon->Points[i] = Polygon->Points[i + 1];
Polygon->PointN--;
/* Shift down indices of any holes */
for (i = 0; i < Polygon->HoleIndexN; i++)
if (Polygon->HoleIndex[i] > point_idx)
Polygon->HoleIndex[i]--;
SetPolygonBoundingBox (Polygon);
r_insert_entry (Layer->polygon_tree, (BoxType *) Polygon, 0);
InitClip (PCB->Data, Layer, Polygon);
return (Polygon);
}
/* ---------------------------------------------------------------------------
* draws the attached object while in MOVE_MODE or COPY_MODE
*/
static void
XORDrawMoveOrCopyObject (void)
{
RubberbandTypePtr ptr;
Cardinal i;
LocationType dx = Crosshair.X - Crosshair.AttachedObject.X,
dy = Crosshair.Y - Crosshair.AttachedObject.Y;
switch (Crosshair.AttachedObject.Type)
{
case VIA_TYPE:
{
PinTypePtr via = (PinTypePtr) Crosshair.AttachedObject.Ptr1;
gui->draw_arc (Crosshair.GC,
via->X + dx,
via->Y + dy,
via->Thickness / 2, via->Thickness / 2, 0, 360);
break;
}
case LINE_TYPE:
{
LineTypePtr line = (LineTypePtr) Crosshair.AttachedObject.Ptr2;
XORDrawAttachedLine (line->Point1.X + dx, line->Point1.Y + dy,
line->Point2.X + dx, line->Point2.Y + dy,
line->Thickness);
break;
}
case ARC_TYPE:
{
ArcTypePtr Arc = (ArcTypePtr) Crosshair.AttachedObject.Ptr2;
gui->draw_arc (Crosshair.GC,
Arc->X + dx,
Arc->Y + dy,
Arc->Width, Arc->Height, Arc->StartAngle, Arc->Delta);
break;
}
case POLYGON_TYPE:
{
PolygonTypePtr polygon =
(PolygonTypePtr) Crosshair.AttachedObject.Ptr2;
/* the tmp polygon has n+1 points because the first
* and the last one are set to the same coordinates
*/
XORPolygon (polygon, dx, dy);
break;
}
case LINEPOINT_TYPE:
{
LineTypePtr line;
PointTypePtr point;
line = (LineTypePtr) Crosshair.AttachedObject.Ptr2;
point = (PointTypePtr) Crosshair.AttachedObject.Ptr3;
if (point == &line->Point1)
XORDrawAttachedLine (point->X + dx,
point->Y + dy, line->Point2.X,
line->Point2.Y, line->Thickness);
else
XORDrawAttachedLine (point->X + dx,
point->Y + dy, line->Point1.X,
line->Point1.Y, line->Thickness);
break;
}
case POLYGONPOINT_TYPE:
{
PolygonTypePtr polygon;
PointTypePtr point;
Cardinal point_idx, prev, next;
polygon = (PolygonTypePtr) Crosshair.AttachedObject.Ptr2;
point = (PointTypePtr) Crosshair.AttachedObject.Ptr3;
point_idx = polygon_point_idx (polygon, point);
/* get previous and following point */
prev = prev_contour_point (polygon, point_idx);
next = next_contour_point (polygon, point_idx);
/* draw the two segments */
gui->draw_line (Crosshair.GC,
polygon->Points[prev].X, polygon->Points[prev].Y,
point->X + dx, point->Y + dy);
gui->draw_line (Crosshair.GC,
point->X + dx, point->Y + dy,
polygon->Points[next].X, polygon->Points[next].Y);
break;
}
case ELEMENTNAME_TYPE:
{
/* locate the element "mark" and draw an association line from crosshair to it */
ElementTypePtr element =
(ElementTypePtr) Crosshair.AttachedObject.Ptr1;
gui->draw_line (Crosshair.GC,
element->MarkX,
element->MarkY, Crosshair.X, Crosshair.Y);
/* fall through to move the text as a box outline */
}
case TEXT_TYPE:
{
TextTypePtr text = (TextTypePtr) Crosshair.AttachedObject.Ptr2;
BoxTypePtr box = &text->BoundingBox;
gui->draw_rect (Crosshair.GC,
box->X1 + dx,
box->Y1 + dy, box->X2 + dx, box->Y2 + dy);
break;
}
/* pin/pad movements result in moving an element */
case PAD_TYPE:
case PIN_TYPE:
case ELEMENT_TYPE:
XORDrawElement ((ElementTypePtr) Crosshair.AttachedObject.Ptr2, dx, dy);
break;
}
/* draw the attached rubberband lines too */
i = Crosshair.AttachedObject.RubberbandN;
ptr = Crosshair.AttachedObject.Rubberband;
while (i)
{
PointTypePtr point1, point2;
if (TEST_FLAG (VIAFLAG, ptr->Line))
{
/* this is a rat going to a polygon. do not draw for rubberband */;
}
else if (TEST_FLAG (RUBBERENDFLAG, ptr->Line))
{
/* 'point1' is always the fix-point */
if (ptr->MovedPoint == &ptr->Line->Point1)
{
point1 = &ptr->Line->Point2;
point2 = &ptr->Line->Point1;
}
else
{
point1 = &ptr->Line->Point1;
point2 = &ptr->Line->Point2;
}
XORDrawAttachedLine (point1->X,
point1->Y, point2->X + dx,
point2->Y + dy, ptr->Line->Thickness);
}
else if (ptr->MovedPoint == &ptr->Line->Point1)
XORDrawAttachedLine (ptr->Line->Point1.X + dx,
ptr->Line->Point1.Y + dy,
ptr->Line->Point2.X + dx,
ptr->Line->Point2.Y + dy, ptr->Line->Thickness);
ptr++;
i--;
}
}
