/*! \brief callback function to draw a net marker in magnetic mode
* \par Function Description
* If the mouse is moved, this function is called to update the
* position of the magnetic marker.
* If the controllkey is pressed the magnetic marker follows the mouse.
*/
void o_net_start_magnetic(GSCHEM_TOPLEVEL *w_current, int w_x, int w_y)
{
o_net_invalidate_rubber (w_current);
if (w_current->CONTROLKEY) {
w_current->magnetic_wx = w_x;
w_current->magnetic_wy = w_y;
}
else {
o_net_find_magnetic(w_current, w_x, w_y);
}
o_net_invalidate_rubber (w_current);
w_current->rubber_visible = 1;
w_current->inside_action = 1;
}
/*! \brief callback function to draw a net marker in magnetic mode
* \par Function Description
* If the mouse is moved, this function is called to update the
* position of the magnetic marker.
* If the controllkey is pressed the magnetic marker follows the mouse.
*/
void o_net_start_magnetic(GschemToplevel *w_current, int w_x, int w_y)
{
if (!(gschem_options_get_magnetic_net_mode (w_current->options))) {
return;
}
o_net_invalidate_rubber (w_current);
if (w_current->CONTROLKEY) {
w_current->magnetic_wx = w_x;
w_current->magnetic_wy = w_y;
}
else {
o_net_find_magnetic(w_current, w_x, w_y);
}
o_net_invalidate_rubber (w_current);
w_current->rubber_visible = 1;
}
/*! \brief erase and redraw the rubber lines when drawing a net
* \par Function Description
* This function draws the rubbernet lines when drawing a net.
*/
void o_net_motion (GschemToplevel *w_current, int w_x, int w_y)
{
int ortho, horizontal, quadrant;
gboolean magnetic_net_mode;
g_return_if_fail (w_current != NULL);
g_assert( w_current->inside_action != 0 );
magnetic_net_mode = gschem_options_get_magnetic_net_mode (w_current->options);
/* Orthognal mode enabled when Control Key is NOT pressed or
if we are using magnetic mode */
ortho = !w_current->CONTROLKEY || magnetic_net_mode;
if (w_current->rubber_visible)
o_net_invalidate_rubber (w_current);
if (magnetic_net_mode) {
if (w_current->CONTROLKEY) {
/* set the magnetic marker position to current xy if the
controlkey is pressed. Thus the net will not connect to
the closest net if we finish the net drawing */
w_current->magnetic_wx = w_x;
w_current->magnetic_wy = w_y;
}
else {
o_net_find_magnetic(w_current, w_x, w_y);
}
}
w_current->second_wx = w_x;
w_current->second_wy = w_y;
/* In orthogonal mode secondary line is the same as the first */
if (!ortho) {
w_current->third_wx = w_current->second_wx;
w_current->third_wy = w_current->second_wy;
}
/* If you press the control key then you can draw non-ortho nets */
else {
if (w_current->second_wy > w_current->first_wy)
quadrant = w_current->second_wx > w_current->first_wx ? QUADRANT1: QUADRANT2;
else
quadrant = w_current->second_wx > w_current->first_wx ? QUADRANT4: QUADRANT3;
horizontal = w_current->net_direction & quadrant;
if (!w_current->SHIFTKEY)
horizontal = !horizontal;
/* calculate the co-ordinates necessary to draw the lines*/
/* Pressing the shift key will cause the vertical and horizontal lines to switch places */
if ( horizontal ) {
w_current->second_wy = w_current->first_wy;
w_current->third_wx = w_current->second_wx;
w_current->third_wy = w_y;
} else {
w_current->second_wx = w_current->first_wx;
w_current->third_wx = w_x;
w_current->third_wy = w_current->second_wy;
}
}
o_net_invalidate_rubber (w_current);
w_current->rubber_visible = 1;
}
