/* Callback function registered with libgeda to allow the libgeda
* "bounds" functions to get text bounds using the renderer. If a
* "rendered bounds" function isn't provided, text objects don't get
* used when calculating the extents of the drawing. */
static gboolean
export_text_rendered_bounds (void *user_data,
const GedaObject *object,
gint *left,
gint *top,
gint *right,
gint *bottom)
{
int result;
double t, l, r, b;
EdaRenderer *renderer = EDA_RENDERER (user_data);
result = eda_renderer_get_user_bounds (renderer, object, &l, &t, &r, &b);
*left = lrint (fmin (l,r));
*top = lrint (fmin (t, b));
*right = lrint (fmax (l, r));
*bottom = lrint (fmax (t, b));
return result;
}
/*! \brief Draw a page.
* \par Function Description
* Draws the \a page on the Cairo context \a cr, which should have
* dimensions \a cr_width and \a cr_height. If the Pango context \a
* pc is provided, it is used for rendering of text. The parameter \a
* is_color controls whether to enable color printing, and \a
* is_raster should be set if drawing to a raster surface such as an
* image.
*
* \param toplevel A #TOPLEVEL structure.
* \param page The #PAGE to be rendered.
* \param cr The Cairo context to render to.
* \param pc A Pango context for text rendering, or NULL.
* \param cr_width The width of the drawing area.
* \param cr_height The height of the drawing area.
* \param is_color TRUE if drawing should be in color; FALSE otherwise.
* \param is_raster TRUE if drawing to a raster image surface; FALSE otherwise.
*/
static void
x_print_draw_page (TOPLEVEL *toplevel, PAGE *page,
cairo_t *cr, PangoContext *pc,
double cr_width, double cr_height,
gboolean is_color, gboolean is_raster)
{
EdaRenderer *renderer;
cairo_matrix_t mtx;
GArray *color_map;
int status, wx_min, wy_min, wx_max, wy_max;
double w_width, w_height, scale;
GList *iter;
/* First, calculate a transformation matrix for the cairo
* context. We want to center the extents of the page in the
* available page area. */
status = world_get_object_glist_bounds (toplevel, s_page_objects (page),
&wx_min, &wy_min, &wx_max, &wy_max);
/* If there are no printable objects, draw nothing. */
if (!status) return;
w_width = wx_max - wx_min;
w_height = wy_max - wy_min;
scale = fmin (cr_width / w_width, cr_height / w_height);
cairo_matrix_init (&mtx,
scale, 0,
0, -scale,
- (wx_min + 0.5*w_width) * scale + 0.5*cr_width,
(wy_min + 0.5*w_height) * scale + 0.5*cr_height);
/* Second, build the color map. If no color printing is desired,
* transform the print color map into a black-and-white color map by
* making the background color transparent and replacing all other
* enabled colors with solid black. */
color_map = g_array_sized_new (FALSE, FALSE, sizeof(GedaColor), MAX_COLORS);
color_map = g_array_append_vals (color_map, print_colors, MAX_COLORS);
if (!is_color) {
int i;
for (i = 0; i < MAX_COLORS; i++) {
GedaColor *c = &g_array_index (color_map, GedaColor, i);
if (!c->enabled) continue;
/* Disable background color & fully-transparent colors */
if (c->a == 0 || i == BACKGROUND_COLOR) {
c->enabled = FALSE;
continue;
}
/* Set any remaining colors solid black */
c->r = 0;
c->g = 0;
c->b = 0;
c->a = ~0;
}
}
/* Thirdly, create and initialise a renderer */
renderer = EDA_RENDERER (g_object_new (EDA_TYPE_RENDERER,
"cairo-context", cr,
"pango-context", pc,
"color-map", color_map,
"render-flags", is_raster ? EDA_RENDERER_FLAG_HINTING : 0,
NULL));
/* Finally, actually do drawing */
cairo_save (cr);
cairo_transform (cr, &mtx);
/* Draw background */
eda_cairo_set_source_color (cr, BACKGROUND_COLOR, color_map);
cairo_paint (cr);
/* Draw all objects and cues */
for (iter = (GList *) s_page_objects (page);
iter != NULL;
iter = g_list_next (iter)) {
eda_renderer_draw (renderer, (OBJECT *) iter->data);
}
for (iter = (GList *) s_page_objects (page);
iter != NULL;
iter = g_list_next (iter)) {
eda_renderer_draw_cues (renderer, (OBJECT *) iter->data);
}
cairo_restore (cr);
g_object_unref (renderer);
g_array_free (color_map, TRUE);
}
GschemToplevel *gschem_toplevel_new ()
{
GschemToplevel *w_current;
w_current = g_new0 (GschemToplevel, 1);
w_current->toplevel = NULL;
w_current->dont_invalidate = FALSE;
/* ------------------- */
/* main window widgets */
/* ------------------- */
w_current->main_window = NULL;
w_current->drawing_area = NULL;
w_current->menubar = NULL;
w_current->popup_menu = NULL;
w_current->find_text_widget = NULL;
w_current->find_patch_widget = NULL;
w_current->macro_widget = NULL;
w_current->bottom_widget = NULL;
w_current->translate_widget = NULL;
w_current->toolbar_select = NULL;
w_current->toolbar_net = NULL;
w_current->toolbar_bus = NULL;
w_current->left_notebook = NULL;
w_current->bottom_notebook = NULL;
w_current->right_notebook = NULL;
w_current->keyaccel_string = NULL;
w_current->keyaccel_string_source_id = FALSE;
/* ------------ */
/* Dialog boxes */
/* ------------ */
w_current->sowindow = NULL;
w_current->pfswindow = NULL;
w_current->pswindow = NULL;
w_current->tiwindow = NULL;
w_current->sewindow = NULL;
w_current->aawindow = NULL;
w_current->aewindow = NULL;
w_current->hkwindow = NULL;
w_current->cowindow = NULL;
w_current->coord_world = NULL;
w_current->coord_screen = NULL;
/* --------- */
/* Dockables */
/* --------- */
w_current->dockables = NULL;
w_current->compselect_dockable = NULL;
w_current->object_properties_dockable = NULL;
w_current->text_properties_dockable = NULL;
w_current->multiattrib_dockable = NULL;
w_current->options_dockable = NULL;
w_current->log_dockable = NULL;
w_current->find_text_dockable = NULL;
/* -------------------------------------- */
/* Models for widgets inside dialog boxes */
/* -------------------------------------- */
w_current->dash_length_list_store = NULL;
w_current->dash_space_list_store = NULL;
w_current->fill_angle_list_store = NULL;
w_current->fill_pitch_list_store = NULL;
w_current->fill_width_list_store = NULL;
w_current->line_width_list_store = NULL;
w_current->text_size_list_store = NULL;
/* ----------------------------------------- */
/* An adapter for manipulating the selection */
/* ----------------------------------------- */
w_current->selection_adapter = NULL;
/* ----------------- */
/* Picture placement */
/* ----------------- */
w_current->current_pixbuf = NULL;
w_current->pixbuf_filename = NULL;
w_current->pixbuf_wh_ratio = 0;
/* ------------- */
/* Drawing state */
/* ------------- */
w_current->renderer = EDA_RENDERER (g_object_new (EDA_TYPE_RENDERER, NULL));
w_current->first_wx = -1;
w_current->first_wy = -1;
w_current->second_wx = -1;
w_current->second_wy = -1;
w_current->third_wx = -1;
w_current->third_wy = -1;
w_current->distance = 0;
w_current->magnetic_wx = -1;
w_current->magnetic_wy = -1;
w_current->inside_action = 0;
w_current->rubber_visible = 0;
w_current->net_direction = 0;
w_current->which_grip = -1;
w_current->which_object = NULL;
w_current->temp_path = NULL;
w_current->pathcontrol = TRUE;
/* ------------------ */
/* Rubberbanding nets */
/* ------------------ */
w_current->stretch_list = NULL;
/* --------------------- */
/* Gschem internal state */
/* --------------------- */
w_current->num_untitled = 0;
w_current->event_state = SELECT;
w_current->image_width = 0;
w_current->image_height = 0;
w_current->min_zoom = 0;
w_current->max_zoom = 8;
w_current->drawbounding_action_mode = FREE;
w_current->last_drawb_mode = LAST_DRAWB_MODE_NONE;
w_current->CONTROLKEY = 0;
w_current->SHIFTKEY = 0;
w_current->ALTKEY = 0;
w_current->buffer_number = 0;
w_current->last_callback = NULL;
w_current->clipboard_buffer = NULL;
/* ------------------ */
/* rc/user parameters */
/* ------------------ */
w_current->options = gschem_options_new();
g_signal_connect_swapped (G_OBJECT (w_current->options),
"notify",
G_CALLBACK (notify_options),
w_current);
w_current->text_caps = 0;
w_current->text_size = 0;
w_current->zoom_with_pan = 0;
w_current->actionfeedback_mode = OUTLINE;
w_current->net_direction_mode = TRUE;
w_current->net_selection_mode = 0;
w_current->net_selection_state = 0;
w_current->embed_complex = 0;
w_current->include_complex = 0;
w_current->scrollbars_flag = 0;
w_current->log_window = 0;
w_current->log_window_type = 0;
w_current->third_button = 0;
w_current->third_button_cancel = TRUE;
w_current->middle_button = 0;
w_current->file_preview = 0;
w_current->enforce_hierarchy = 0;
w_current->fast_mousepan = 0;
w_current->raise_dialog_boxes = 0;
w_current->continue_component_place = 0;
w_current->undo_levels = 0;
w_current->undo_control = 0;
w_current->undo_type = 0;
w_current->undo_panzoom = 0;
w_current->draw_grips = 0;
w_current->warp_cursor = 0;
w_current->toolbars = 0;
w_current->handleboxes = 0;
w_current->bus_ripper_size = 0;
w_current->bus_ripper_type = 0;
w_current->bus_ripper_rotation = 0;
w_current->grid_mode = GRID_MODE_NONE;
w_current->dots_grid_fixed_threshold = 10;
w_current->dots_grid_dot_size = 1;
w_current->dots_grid_mode = DOTS_GRID_VARIABLE_MODE;
w_current->mesh_grid_display_threshold = 3;
w_current->add_attribute_offset = 50;
w_current->mousepan_gain = 5;
w_current->keyboardpan_gain = 10;
w_current->select_slack_pixels = 4;
w_current->zoom_gain = 20;
w_current->scrollpan_steps = 8;
w_current->smob = SCM_UNDEFINED;
return w_current;
}