/*! \brief Mirror the WORLD coordinates of an ARC.
* \par Function Description
* This function mirrors the world coordinates of an arc.
* The symetry axis is given by the vertical line going through the point (<B>world_centerx</B>,<B>world_centery</B>).
*
* The arc is translated in order to put the point (<B>world_centerx</B>,<B>world_centery</B>)
* on the origin. The center of the arc is then mirrored. The start angle of the arc
* and the sweep of the arc are also mirrored.
*
* The arc is finally back translated to its previous location on the page.
*
* \param [in] toplevel The TOPLEVEL object.
* \param [in] world_centerx
* \param [in] world_centery
* \param [in] object
*/
void o_arc_mirror_world(TOPLEVEL *toplevel,
int world_centerx, int world_centery,
OBJECT *object)
{
/* translate object to origin */
object->arc->x -= world_centerx;
object->arc->y -= world_centery;
/* get center, and mirror it (vertical mirror) */
object->arc->x = -object->arc->x;
object->arc->y = object->arc->y;
/* apply mirror to angles (vertical mirror) */
object->arc->start_angle = (180 - object->arc->start_angle) % 360;
/* start_angle *MUST* be positive */
if(object->arc->start_angle < 0) object->arc->start_angle += 360;
object->arc->end_angle = -object->arc->end_angle;
/* translate object back to its previous position */
object->arc->x += world_centerx;
object->arc->y += world_centery;
/* update the screen coords and bounding box */
o_arc_recalc(toplevel, object);
}
/*! \brief
* \par Function Description
* This function rotates the world coordinates of an arc of an angle
* specified by <B>angle</B>. The center of the rotation is given by
* (<B>world_centerx</B>,<B>world_centery</B>).
*
* The arc is translated in order to put the center of the rotation
* on the origin. The center of the arc is then rotated of the angle
* specified by <B>angle</B>. The start angle of the arc is incremented by <B>angle</B>.
*
* The arc is finally back translated to its previous location on the page.
*
* <B>world_centerx</B> and <B>world_centery</B> are in world units, <B>angle</B> is in degrees.
*
* \param [in] toplevel The TOPLEVEL object.
* \param [in] world_centerx
* \param [in] world_centery
* \param [in] angle
* \param [in] object
*/
void o_arc_rotate_world(TOPLEVEL *toplevel,
int world_centerx, int world_centery, int angle,
OBJECT *object)
{
int x, y, newx, newy;
/* translate object to origin */
object->arc->x -= world_centerx;
object->arc->y -= world_centery;
/* get center, and rotate center */
x = object->arc->x;
y = object->arc->y;
if(angle % 90 == 0) {
rotate_point_90(x, y, angle % 360, &newx, &newy);
} else {
rotate_point(x, y, angle % 360, &newx, &newy);
}
object->arc->x = newx;
object->arc->y = newy;
/* apply rotation to angles */
object->arc->start_angle = (object->arc->start_angle + angle) % 360;
/* end_angle is unchanged as it is the sweep of the arc */
/* object->arc->end_angle = (object->arc->end_angle); */
/* translate object to its previous place */
object->arc->x += world_centerx;
object->arc->y += world_centery;
/* update the screen coords and the bounding box */
o_arc_recalc(toplevel, object);
}
/*! \brief Recalculate position of the given object.
* \par Function Description
* This function will take an object and recalculate its
* position on the screen.
*
* \param [in] toplevel The TOPLEVEL object.
* \param [in,out] o_current OBJECT to recalculate.
*
*/
void o_recalc_single_object(TOPLEVEL *toplevel, OBJECT *o_current)
{
if (o_current != NULL) {
switch(o_current->type) {
case(OBJ_LINE):
o_line_recalc(toplevel, o_current);
break;
case(OBJ_NET):
o_net_recalc(toplevel, o_current);
break;
case(OBJ_BUS):
o_bus_recalc(toplevel, o_current);
break;
case(OBJ_BOX):
o_box_recalc(toplevel, o_current);
break;
case(OBJ_PATH):
o_path_recalc(toplevel, o_current);
break;
case(OBJ_PICTURE):
o_picture_recalc(toplevel, o_current);
break;
case(OBJ_CIRCLE):
o_circle_recalc(toplevel, o_current);
break;
case(OBJ_COMPLEX):
case(OBJ_PLACEHOLDER):
o_complex_recalc(toplevel, o_current);
break;
case(OBJ_PIN):
o_pin_recalc(toplevel, o_current);
break;
case(OBJ_ARC):
o_arc_recalc(toplevel, o_current);
break;
case(OBJ_TEXT):
o_text_recalc(toplevel, o_current);
break;
}
}
}
/*! \brief
* \par Function Description
* The function creates a new OBJECT of type arc.
*
* The arc is defined by its center in parameters x and y.
* The radius parameter specifies the radius of the arc. The start
* angle is given by start_angle and the end angle by end_angle.
* The line and fill type of the created arc are set to default.
*
* All dimensions are in world unit, except start_angle and
* end_angle in degrees.
*
* A new object of type OBJECT is allocated. Its type and color
* are initilized. The description of the arc characteristics
* are stored in a new ARC structure.
*
* Now fixed for world coordinates.
*
* \param [in] toplevel The TOPLEVEL object.
* \param [in] type
* \param [in] color
* \param [in] x
* \param [in] y
* \param [in] radius
* \param [in] start_angle
* \param [in] end_angle
* \return
*/
OBJECT *o_arc_new(TOPLEVEL *toplevel,
char type, int color,
int x, int y, int radius, int start_angle, int end_angle)
{
OBJECT *new_node;
new_node = s_basic_new_object(type, "arc");
new_node->color = color;
new_node->arc = (ARC *) g_malloc(sizeof(ARC));
/*! \note
* The ARC structure is initialized with the parameters.
* A default initialization is performed for the line and
* fill type to avoid misunderstanding.
*
* The functions relative to the use of the object are sets.
*/
/* World coordinates */
new_node->arc->x = x;
new_node->arc->y = y;
new_node->arc->width = 2 * radius;
new_node->arc->height = 2 * radius;
/* must check the sign of start_angle, end_angle ... */
if(end_angle < 0) {
start_angle = start_angle + end_angle;
end_angle = -end_angle;
}
if(start_angle < 0) start_angle = 360 + start_angle;
new_node->arc->start_angle = start_angle;
new_node->arc->end_angle = end_angle;
/* Default init */
o_set_line_options(toplevel, new_node,
o_get_line_end(toplevel->print_output_capstyle), TYPE_SOLID, 0, -1, -1);
o_set_fill_options(toplevel, new_node,
FILLING_HOLLOW, -1, -1, -1, -1, -1);
o_arc_recalc(toplevel, new_node);
/* new_node->graphical = arc; eventually */
return new_node;
}
/*! \brief
* \par Function Description
* This function applies a translation of (<B>dx</B>,<B>dy</B>)
* to the arc described in <B>*object</B>. <B>dx</B> and <B>dy</B> are in world unit.
*
* \param [in] toplevel The TOPLEVEL object.
* \param [in] dx
* \param [in] dy
* \param [in] object
*/
void o_arc_translate_world(TOPLEVEL *toplevel, int dx, int dy,
OBJECT *object)
{
if (object == NULL) {
return;
}
/* Do world coords */
object->arc->x = object->arc->x + dx;
object->arc->y = object->arc->y + dy;
/* Recalculate screen coords from new world coords */
o_arc_recalc(toplevel, object);
}
/*! \brief
* \par Function Description
* This function modifies the internal values of the arc object
* *object according to the whichone parameter.
*
* The new values are given by <B>x</B> and/or <B>y</B>. Their meaning depends on the value of whichone.
*
* If <B>whichone</B> is equal to #ARC_CENTER, the (<B>x</B>,<B>y</B>) point is taken as the new center
* of the arc in world unit.
*
* If <B>whichone</B> is equal to #ARC_RADIUS, the <B>x</B> parameter is taken to be the radius
* of the arc in world unit. The <B>y</B> parameter is ignored.
*
* If <B>whichone</B> is equal to #ARC_START_ANGLE, the <B>x</B> parameter is the starting angle of the arc.
* <B>x</B> is in degrees. <B>y</B> is ignored.
*
* If <B>whichone</B> is equal to #ARC_END_ANGLE, the <B>x</B> parameter is the ending angle of the arc.
* <B>x</B> is in degrees. <B>y</B> is ignored.
*
* \param [in] toplevel The TOPLEVEL object.
* \param [in,out] object
* \param [in] x
* \param [in] y
* \param [in] whichone
*/
void o_arc_modify(TOPLEVEL *toplevel, OBJECT *object,
int x, int y, int whichone)
{
o_emit_pre_change_notify (toplevel, object);
switch(whichone) {
case ARC_CENTER:
/* modify the center of arc object */
object->arc->x = x;
object->arc->y = y;
break;
case ARC_RADIUS:
/* modify the radius of arc object */
object->arc->width = 2 * x;
object->arc->height = 2 * x;
break;
case ARC_START_ANGLE:
/* modify the start angle of the arc object */
object->arc->start_angle = x;
break;
case ARC_END_ANGLE:
/* modify the end angle of the arc object */
object->arc->end_angle = x;
break;
default:
break;
}
/* update the screen coords and the bounding box */
o_arc_recalc(toplevel, object);
o_emit_change_notify (toplevel, object);
}