/*! \brief Closes a page.
* \par Function Description
* This function closes the page <B>page</B> of toplevel
* <B>toplevel</B>.
*
* If necessary, the current page of <B>toplevel</B> is changed to
* the next valid page or to a new untitled page.
*
* \param [in] w_current The toplevel environment.
* \param [in] page The page to close.
*/
void
x_window_close_page (GSCHEM_TOPLEVEL *w_current, PAGE *page)
{
TOPLEVEL *toplevel = w_current->toplevel;
PAGE *new_current = NULL;
GList *iter;
g_return_if_fail (toplevel != NULL);
g_return_if_fail (page != NULL);
g_assert (page->pid != -1);
/* If we're closing whilst inside a move action, re-wind the
* page contents back to their state before we started */
if (w_current->inside_action &&
(w_current->event_state == MOVE ||
w_current->event_state == ENDMOVE)) {
o_move_cancel (w_current);
}
if (page == toplevel->page_current) {
/* as it will delete current page, select new current page */
/* first look up in page hierarchy */
new_current = s_page_search_by_page_id (toplevel->pages, page->up);
if (new_current == NULL) {
/* no up in hierarchy, choice is prev, next, new page */
iter = g_list_find( geda_list_get_glist( toplevel->pages ), page );
if ( g_list_previous( iter ) ) {
new_current = (PAGE *)g_list_previous( iter )->data;
} else if ( g_list_next( iter ) ) {
new_current = (PAGE *)g_list_next( iter )->data;
} else {
/* need to add a new untitled page */
new_current = NULL;
}
}
/* new_current will be the new current page at the end of the function */
}
s_log_message (page->CHANGED ?
_("Discarding page [%s]\n") : _("Closing [%s]\n"),
page->page_filename);
/* remove page from toplevel list of page and free */
s_page_delete (toplevel, page);
/* Switch to a different page if we just removed the current */
if (toplevel->page_current == NULL) {
/* Create a new page if there wasn't another to switch to */
if (new_current == NULL) {
new_current = x_window_open_page (w_current, NULL);
}
/* change to new_current and update display */
x_window_set_current_page (w_current, new_current);
}
}
/*! \brief Updates the preview widget.
* \par Function Description
* This function update the preview: if the preview is active and a
* filename has been given, it opens the file and display
* it. Otherwise it display a blank page.
*
* \param [in] preview The preview widget.
*/
static void
preview_update (Preview *preview)
{
GSCHEM_TOPLEVEL *preview_w_current = preview->preview_w_current;
TOPLEVEL *preview_toplevel = preview_w_current->toplevel;
int left, top, right, bottom;
int width, height;
if (preview_toplevel->page_current == NULL) {
return;
}
/* delete old preview, create new page */
/* it would be better to just resets current page - Fix me */
s_page_delete (preview_toplevel, preview_toplevel->page_current);
s_page_goto (preview_toplevel, s_page_new (preview_toplevel, "preview"));
if (preview->active) {
g_assert ((preview->filename == NULL) || (preview->buffer == NULL));
if (preview->filename != NULL) {
/* open up file in current page */
f_open_flags (preview_toplevel, preview_toplevel->page_current,
preview->filename,
F_OPEN_RC | F_OPEN_RESTORE_CWD, NULL);
/* test value returned by f_open... - Fix me */
/* we should display something if there an error occured - Fix me */
}
if (preview->buffer != NULL) {
/* Load the data buffer */
s_page_append_list (preview_toplevel, preview_toplevel->page_current,
o_read_buffer (preview_toplevel,
NULL, preview->buffer, -1,
_("Preview Buffer")));
}
}
if (world_get_object_glist_bounds (preview_toplevel,
s_page_objects (preview_toplevel->page_current),
&left, &top,
&right, &bottom)) {
/* Clamp the canvas size to the extents of the page being previewed */
width = right - left;
height = bottom - top;
preview_toplevel->init_left = left - ((double)width * OVER_ZOOM_FACTOR);
preview_toplevel->init_right = right + ((double)width * OVER_ZOOM_FACTOR);
preview_toplevel->init_top = top - ((double)height * OVER_ZOOM_FACTOR);
preview_toplevel->init_bottom = bottom + ((double)height * OVER_ZOOM_FACTOR);
}
/* display current page (possibly empty) */
a_zoom_extents (preview_w_current,
s_page_objects (preview_toplevel->page_current),
A_PAN_DONT_REDRAW);
o_invalidate_all (preview_w_current);
}
/*! \brief Load a subpage
*
* \par Function Description
* Implements s_hierarchy_down_schematic(), but without changing variables
* related to the UI.
*
* - Ensures a duplicate page is not loaded
* - Does not change the current page
* - Does not modify the most recent "up" page
*
* \param [in] page
* \param [in] filename
* \param [out] error
* \return A pointer to the subpage or NULL if an error occured.
*/
PAGE*
s_hierarchy_load_subpage (PAGE *page, const char *filename, GError **error)
{
char *string;
PAGE *subpage = NULL;
g_return_val_if_fail (filename != NULL, NULL);
g_return_val_if_fail (page != NULL, NULL);
SCM string_s = scm_call_1 (scm_c_public_ref ("geda library",
"get-source-library-file"),
scm_from_utf8_string (filename));
if (scm_is_false (string_s)) {
g_set_error (error,
EDA_ERROR,
EDA_ERROR_NOLIB,
_("Schematic not found in source library."));
} else {
string = scm_to_utf8_string (string_s);
gchar *normalized = f_normalize_filename (string, error);
subpage = s_page_search (page->toplevel, normalized);
if (subpage == NULL) {
int success;
subpage = s_page_new (page->toplevel, string);
success = f_open (page->toplevel, subpage, s_page_get_filename (subpage), error);
if (success) {
subpage->page_control = ++page_control_counter;
} else {
s_page_delete (page->toplevel, subpage);
subpage = NULL;
}
}
g_free (normalized);
}
return subpage;
}
/*! \brief Deletes the list of pages of <B>toplevel</B>.
* \par Function Description
* Deletes the list of pages of <B>toplevel</B>.
* This function should only be called when you are finishing up.
*
* \param toplevel The TOPLEVEL object.
*/
void s_page_delete_list(TOPLEVEL *toplevel)
{
GList *list_copy, *iter;
PAGE *page;
/* s_page_delete removes items from the page list, so make a copy */
list_copy = g_list_copy (geda_list_get_glist (toplevel->pages));
for (iter = list_copy; iter != NULL; iter = g_list_next (iter)) {
page = (PAGE *)iter->data;
s_page_delete (toplevel, page);
}
g_list_free (list_copy);
/* reset toplevel fields */
toplevel->page_current = NULL;
}
/*! \brief Load a subpage
*
* \par Function Description
* Implements s_hierarchy_down_schematic(), but without changing variables
* related to the UI.
*
* - Ensures a duplicate page is not loaded
* - Does not change the current page
* - Does not modify the most recent "up" page
*
* \param [in] page
* \param [in] filename
* \param [out] error
* \return A pointer to the subpage or NULL if an error occured.
*/
PAGE*
s_hierarchy_load_subpage (PAGE *page, const char *filename, GError **error)
{
char *string;
PAGE *subpage = NULL;
g_return_val_if_fail (filename != NULL, NULL);
g_return_val_if_fail (page != NULL, NULL);
string = s_slib_search_single (filename);
if (string == NULL) {
g_set_error (error,
EDA_ERROR,
EDA_ERROR_NOLIB,
_("Schematic not found in source library."));
} else {
gchar *normalized = f_normalize_filename (string, error);
subpage = s_page_search (page->toplevel, normalized);
if (subpage == NULL) {
int success;
subpage = s_page_new (page->toplevel, string);
success = f_open (page->toplevel, subpage, subpage->page_filename, error);
if (success) {
subpage->page_control = ++page_control_counter;
} else {
s_page_delete (page->toplevel, subpage);
subpage = NULL;
}
}
g_free (normalized);
}
return subpage;
}
/*! \todo Finish function documentation!!!
* \brief
* \par Function Description
*
* <B>type</B> can be one of the following values:
* <DL>
* <DT>*</DT><DD>UNDO_ACTION
* <DT>*</DT><DD>REDO_ACTION
* </DL>
*/
void o_undo_callback(GSCHEM_TOPLEVEL *w_current, int type)
{
TOPLEVEL *toplevel = w_current->toplevel;
UNDO *u_current;
UNDO *u_next;
UNDO *save_bottom;
UNDO *save_tos;
UNDO *save_current;
int save_logging;
int find_prev_data=FALSE;
char *save_filename;
if (w_current->undo_control == FALSE) {
s_log_message(_("Undo/Redo disabled in rc file\n"));
return;
}
if (toplevel->page_current->undo_current == NULL) {
return;
}
if (type == UNDO_ACTION) {
u_current = toplevel->page_current->undo_current->prev;
} else {
u_current = toplevel->page_current->undo_current->next;
}
u_next = toplevel->page_current->undo_current;
if (u_current == NULL) {
return;
}
if (u_next->type == UNDO_ALL && u_current->type == UNDO_VIEWPORT_ONLY) {
#if DEBUG
printf("Type: %d\n", u_current->type);
printf("Current is an undo all, next is viewport only!\n");
#endif
find_prev_data = TRUE;
if (w_current->undo_type == UNDO_DISK) {
u_current->filename = o_undo_find_prev_filename(u_current);
} else {
u_current->object_list = o_undo_find_prev_object_head (u_current);
}
}
/* save filename */
save_filename = g_strdup (toplevel->page_current->page_filename);
/* save structure so it's not nuked */
save_bottom = toplevel->page_current->undo_bottom;
save_tos = toplevel->page_current->undo_tos;
save_current = toplevel->page_current->undo_current;
toplevel->page_current->undo_bottom = NULL;
toplevel->page_current->undo_tos = NULL;
toplevel->page_current->undo_current = NULL;
if (w_current->undo_type == UNDO_DISK && u_current->filename) {
PAGE *p_new;
s_page_delete (toplevel, toplevel->page_current);
p_new = s_page_new(toplevel, u_current->filename);
s_page_goto (toplevel, p_new);
} else if (w_current->undo_type == UNDO_MEMORY && u_current->object_list) {
PAGE *p_new;
s_page_delete (toplevel, toplevel->page_current);
p_new = s_page_new (toplevel, save_filename);
s_page_goto (toplevel, p_new);
}
/* temporarily disable logging */
save_logging = do_logging;
do_logging = FALSE;
if (w_current->undo_type == UNDO_DISK && u_current->filename) {
f_open(toplevel, toplevel->page_current, u_current->filename, NULL);
x_manual_resize(w_current);
toplevel->page_current->page_control = u_current->page_control;
toplevel->page_current->up = u_current->up;
toplevel->page_current->CHANGED=1;
} else if (w_current->undo_type == UNDO_MEMORY && u_current->object_list) {
s_page_delete_objects (toplevel, toplevel->page_current);
s_page_append_list (toplevel, toplevel->page_current,
o_glist_copy_all (toplevel, u_current->object_list,
NULL));
x_manual_resize(w_current);
toplevel->page_current->page_control = u_current->page_control;
toplevel->page_current->up = u_current->up;
toplevel->page_current->CHANGED=1;
}
/* do misc setups */
set_window(toplevel, toplevel->page_current,
u_current->left, u_current->right,
u_current->top, u_current->bottom);
x_hscrollbar_update(w_current);
x_vscrollbar_update(w_current);
/* restore logging */
do_logging = save_logging;
/* set filename right */
g_free(toplevel->page_current->page_filename);
toplevel->page_current->page_filename = save_filename;
/* final redraw */
x_pagesel_update (w_current);
x_multiattrib_update (w_current);
/* Let the caller to decide if redraw or not */
o_invalidate_all (w_current);
i_update_menus(w_current);
/* restore saved undo structures */
toplevel->page_current->undo_bottom = save_bottom;
toplevel->page_current->undo_tos = save_tos;
toplevel->page_current->undo_current = save_current;
if (type == UNDO_ACTION) {
if (toplevel->page_current->undo_current) {
toplevel->page_current->undo_current =
toplevel->page_current->undo_current->prev;
if (toplevel->page_current->undo_current == NULL) {
toplevel->page_current->undo_current =
toplevel->page_current->undo_bottom;
}
}
} else { /* type is REDO_ACTION */
if (toplevel->page_current->undo_current) {
toplevel->page_current->undo_current =
toplevel->page_current->undo_current->next;
if (toplevel->page_current->undo_current == NULL) {
toplevel->page_current->undo_current =
toplevel->page_current->undo_tos;
}
}
}
/* don't have to free data here since filename, object_list are */
/* just pointers to the real data (lower in the stack) */
if (find_prev_data) {
u_current->filename = NULL;
u_current->object_list = NULL;
}
#if DEBUG
printf("\n\n---Undo----\n");
s_undo_print_all(toplevel->page_current->undo_bottom);
printf("TOS: %s\n", toplevel->page_current->undo_tos->filename);
printf("CURRENT: %s\n", toplevel->page_current->undo_current->filename);
printf("----\n");
#endif
}
/*! \brief Save schematic file and close
* \par Function Description
* This function will save the current schematic file before closing it.
* It also deletes the page_current item in the TOPLEVEL structure.
*
* \param [in,out] toplevel The TOPLEVEL object containing the schematic.
* \param [in] filename The file name to save the schematic to.
*/
void f_save_close(TOPLEVEL *toplevel, char *filename)
{
o_save(toplevel, filename);
s_page_delete (toplevel, toplevel->page_current);
}
