/*! \brief Draw arc from GschemToplevel object.
* \par Function Description
* This function draws the arc from the variables in the GschemToplevel
* structure <B>*w_current</B>.
* The center of the arc is at (<B>w_current->first_wx</B>,
* <B>w_current->first_wy</B>), its radius equal to <B>w_current->distance</B>,
* and the start and end angle are given by <B>w_current->second_wx</B> and
* <B>w_current->second_wy</B>.
*
* \param [in] w_current The GschemToplevel object.
*/
void o_arc_draw_rubber (GschemToplevel *w_current, EdaRenderer *renderer)
{
double rad_angle;
int rdx, rdy;
double wwidth = 0;
cairo_t *cr = eda_renderer_get_cairo_context (renderer);
GArray *color_map = eda_renderer_get_color_map (renderer);
int flags = eda_renderer_get_cairo_flags (renderer);
eda_cairo_arc (cr, flags, wwidth,
w_current->first_wx, w_current->first_wy,
w_current->distance,
w_current->second_wx, w_current->second_wy);
eda_cairo_set_source_color (cr, SELECT_COLOR, color_map);
/* draw the radius line */
rad_angle = ((double) w_current->second_wx) * M_PI / 180;
rdx = (double) w_current->distance * cos (rad_angle);
rdy = (double) w_current->distance * sin (rad_angle);
eda_cairo_line (cr, flags, END_NONE, wwidth,
w_current->first_wx, w_current->first_wy,
w_current->first_wx + rdx, w_current->first_wy + rdy);
eda_cairo_stroke (cr, flags, TYPE_SOLID, END_NONE, wwidth, -1, -1);
}
/*! \brief draw rubbernet lines to the gc
* \par Function Description
* This function draws the rubbernets to the graphic context
*/
void
o_net_draw_rubber(GschemToplevel *w_current, EdaRenderer *renderer)
{
int size = NET_WIDTH, w_magnetic_halfsize;
cairo_t *cr = eda_renderer_get_cairo_context (renderer);
GArray *color_map = eda_renderer_get_color_map (renderer);
int flags = eda_renderer_get_cairo_flags (renderer);
gboolean magnetic_net_mode;
g_return_if_fail (w_current != NULL);
GschemPageView *page_view = gschem_toplevel_get_current_page_view (w_current);
g_return_if_fail (page_view != NULL);
eda_cairo_set_source_color (cr, SELECT_COLOR, color_map);
magnetic_net_mode = gschem_options_get_magnetic_net_mode (w_current->options);
if (magnetic_net_mode) {
if (w_current->magnetic_wx != -1 && w_current->magnetic_wy != -1) {
w_magnetic_halfsize = max (4 * size,
gschem_page_view_WORLDabs (page_view, MAGNETIC_HALFSIZE));
eda_cairo_arc (cr, flags, size,
w_current->magnetic_wx, w_current->magnetic_wy,
w_magnetic_halfsize, 0, 360);
}
}
/* Primary line */
eda_cairo_line (cr, flags, END_NONE, size,
w_current->first_wx, w_current->first_wy,
w_current->second_wx, w_current->second_wy);
/* Secondary line */
eda_cairo_line (cr, flags, END_NONE, size,
w_current->second_wx, w_current->second_wy,
w_current->third_wx, w_current->third_wy);
eda_cairo_stroke (cr, flags, TYPE_SOLID, END_NONE, size, -1, -1);
}
/*! \brief draw a rubberbus segment
* \par Function Description
* This function draws a bus segment from the point
* (<B>first_wx</B>,<B>first_wy</B>) to the point
* (<B>second_wx</B>,<B>second_wy</B>) from the <B>GschemToplevel</B>
* structure.
*
* The function can be used to draw or erase the rubberbus on the screen.
*
* \param [in] w_current The GschemToplevel object
*/
void
o_bus_draw_rubber (GschemToplevel *w_current, EdaRenderer *renderer)
{
int size = BUS_WIDTH;
cairo_t *cr = eda_renderer_get_cairo_context (renderer);
GArray *color_map = eda_renderer_get_color_map (renderer);
int flags = eda_renderer_get_cairo_flags (renderer);
eda_cairo_line (cr, flags, END_NONE, size,
w_current->first_wx, w_current->first_wy,
w_current->second_wx, w_current->second_wy);
eda_cairo_set_source_color (cr, SELECT_COLOR, color_map);
eda_cairo_stroke (cr, flags, TYPE_SOLID, END_NONE, size, -1, -1);
}
/*! \brief Draw circle from GschemToplevel object.
* \par Function Description
* This function draws the circle from the variables in the GschemToplevel
* structure <B>*w_current</B>.
* The center of the circle is at (<B>w_current->first_wx</B>,
* <B>w_current->first_wy</B>) and its radius is in <B>w_current->distance</B>.
*
* It draws a horizontal radius segment on the right half of the circle and
* the circle with the selection color.
*
* \param [in] w_current The GschemToplevel object.
*/
void o_circle_draw_rubber (GschemToplevel *w_current, EdaRenderer *renderer)
{
double wwidth = 0;
cairo_t *cr = eda_renderer_get_cairo_context (renderer);
GArray *color_map = eda_renderer_get_color_map (renderer);
int flags = eda_renderer_get_cairo_flags (renderer);
eda_cairo_center_arc (cr, flags, wwidth, wwidth,
w_current->first_wx, w_current->first_wy,
w_current->distance,
0, 360);
eda_cairo_line (cr, flags, END_NONE, wwidth,
w_current->first_wx,
w_current->first_wy,
w_current->first_wx + w_current->distance,
w_current->first_wy);
eda_cairo_set_source_color (cr, SELECT_COLOR, color_map);
eda_cairo_stroke (cr, flags, TYPE_SOLID, END_NONE, wwidth, -1, -1);
}
/*! \brief Draw path creation preview.
* \par Function Description
* Draw a preview of the path currently being drawn, including a
* helper line showing the control point of the node being drawn (if
* applicable).
*/
void
o_path_draw_rubber (GschemToplevel *w_current, EdaRenderer *renderer)
{
OBJECT object;
int added_sections = 0;
/* Draw a helper for when we're dragging a control point */
if (w_current->first_wx != w_current->second_wx
|| w_current->first_wy != w_current->second_wy) {
double wwidth = 0;
cairo_t *cr = eda_renderer_get_cairo_context (renderer);
GArray *color_map = eda_renderer_get_color_map (renderer);
int flags = eda_renderer_get_cairo_flags (renderer);
eda_cairo_line (cr, flags, END_NONE, wwidth,
w_current->first_wx, w_current->first_wy,
w_current->second_wx, w_current->second_wy);
eda_cairo_set_source_color (cr, SELECT_COLOR, color_map);
eda_cairo_stroke (cr, flags, TYPE_SOLID, END_NONE, wwidth, -1, -1);
}
/* Now draw the rest of the path */
/* Calculate any new sections */
added_sections = path_next_sections (w_current);
/* Setup a fake object to pass the drawing routine */
memset (&object, 0, sizeof (OBJECT));
object.type = OBJ_PATH;
object.color = SELECT_COLOR;
object.line_width = 0; /* clamped to 1 pixel in circle_path */
object.path = w_current->temp_path;
eda_renderer_draw (renderer, &object);
/* Throw away the added sections again */
w_current->temp_path->num_sections -= added_sections;
}
