C++ Selection::setReprList方法代码示例

/** Converts the selected items to LPEItems if they are not already so; e.g. SPRects) */
void sp_selected_to_lpeitems(SPDesktop *desktop)
{
    Inkscape::Selection *selection = desktop->getSelection();

    if (selection->isEmpty()) {
        return;
    }

    std::vector<SPItem*> selected(selection->itemList());
    std::vector<Inkscape::XML::Node*> to_select;
    selection->clear();
    std::vector<SPItem*> items(selected);


    sp_item_list_to_curves(items, selected, to_select, true);

    selection->setReprList(to_select);
    selection->addList(selected);
}

/* This function is an entry point from GUI */
void
sp_selected_path_to_curves(SPDesktop *desktop, bool interactive)
{
    Inkscape::Selection *selection = sp_desktop_selection(desktop);

    if (selection->isEmpty()) {
        if (interactive)
            sp_desktop_message_stack(desktop)->flash(Inkscape::WARNING_MESSAGE, _("Select <b>object(s)</b> to convert to path."));
        return;
    }

    bool did = false;
    if (interactive) {
        desktop->messageStack()->flash(Inkscape::IMMEDIATE_MESSAGE, _("Converting objects to paths..."));
        // set "busy" cursor
        desktop->setWaitingCursor();
    }

    GSList *selected = g_slist_copy((GSList *) selection->itemList());
    GSList *to_select = NULL;
    selection->clear();
    GSList *items = g_slist_copy(selected);

    did = sp_item_list_to_curves(items, &selected, &to_select);

    g_slist_free (items);
    selection->setReprList(to_select);
    selection->addList(selected);
    g_slist_free (to_select);
    g_slist_free (selected);

    if (interactive) {
        desktop->clearWaitingCursor();
        if (did) {
            sp_document_done(sp_desktop_document(desktop), SP_VERB_OBJECT_TO_CURVE, 
                             _("Object to path"));
        } else {
            sp_desktop_message_stack(desktop)->flash(Inkscape::ERROR_MESSAGE, _("<b>No objects</b> to convert to path in the selection."));
            return;
        }
    }
}

/** Converts the selected items to LPEItems if they are not already so; e.g. SPRects) */
void sp_selected_to_lpeitems(SPDesktop *desktop)
{
    Inkscape::Selection *selection = sp_desktop_selection(desktop);

    if (selection->isEmpty()) {
        return;
    }

    bool did = false;

    GSList *selected = g_slist_copy((GSList *) selection->itemList());
    GSList *to_select = NULL;
    selection->clear();
    GSList *items = g_slist_copy(selected);

    did = sp_item_list_to_curves(items, &selected, &to_select, true);

    g_slist_free (items);
    selection->setReprList(to_select);
    selection->addList(selected);
    g_slist_free (to_select);
    g_slist_free (selected);
}

void
sp_selected_path_break_apart(SPDesktop *desktop)
{
    Inkscape::Selection *selection = sp_desktop_selection(desktop);

    if (selection->isEmpty()) {
        sp_desktop_message_stack(desktop)->flash(Inkscape::WARNING_MESSAGE, _("Select <b>path(s)</b> to break apart."));
        return;
    }

    desktop->messageStack()->flash(Inkscape::IMMEDIATE_MESSAGE, _("Breaking apart paths..."));
    // set "busy" cursor
    desktop->setWaitingCursor();

    bool did = false;

    for (GSList *items = g_slist_copy((GSList *) selection->itemList());
         items != NULL;
         items = items->next) {

        SPItem *item = (SPItem *) items->data;

        if (!SP_IS_PATH(item)) {
            continue;
        }

        SPPath *path = SP_PATH(item);

        SPCurve *curve = path->get_curve_for_edit();
        if (curve == NULL) {
            continue;
        }

        did = true;

        Inkscape::XML::Node *parent = item->getRepr()->parent();
        gint pos = item->getRepr()->position();
        char const *id = item->getRepr()->attribute("id");

        // XML Tree being used directly here while it shouldn't be...
        gchar *style = g_strdup(item->getRepr()->attribute("style"));
        // XML Tree being used directly here while it shouldn't be...
        gchar *path_effect = g_strdup(item->getRepr()->attribute("inkscape:path-effect"));

        Geom::PathVector apv = curve->get_pathvector() * path->transform;

        curve->unref();

        // it's going to resurrect as one of the pieces, so we delete without advertisement
        item->deleteObject(false);

        curve = new SPCurve(apv);
        g_assert(curve != NULL);

        GSList *list = curve->split();

        curve->unref();

        GSList *reprs = NULL;
        for (GSList *l = list; l != NULL; l = l->next) {
            curve = (SPCurve *) l->data;

            Inkscape::XML::Node *repr = parent->document()->createElement("svg:path");
            repr->setAttribute("style", style);

            repr->setAttribute("inkscape:path-effect", path_effect);

            gchar *str = sp_svg_write_path(curve->get_pathvector());
            if (path_effect)
                repr->setAttribute("inkscape:original-d", str);
            else
                repr->setAttribute("d", str);
            g_free(str);

            // add the new repr to the parent
            parent->appendChild(repr);

            // move to the saved position
            repr->setPosition(pos > 0 ? pos : 0);

            // if it's the first one, restore id
            if (l == list)
                repr->setAttribute("id", id);

            reprs = g_slist_prepend (reprs, repr);

            Inkscape::GC::release(repr);
        }

        selection->setReprList(reprs);

        g_slist_free(reprs);
        g_slist_free(list);
        g_free(style);
        g_free(path_effect);
    }

    desktop->clearWaitingCursor();

    if (did) {
//.........这里部分代码省略.........

void
sp_selected_path_break_apart(SPDesktop *desktop, bool skip_undo)
{
    Inkscape::Selection *selection = desktop->getSelection();

    if (selection->isEmpty()) {
        desktop->getMessageStack()->flash(Inkscape::WARNING_MESSAGE, _("Select <b>path(s)</b> to break apart."));
        return;
    }

    desktop->messageStack()->flash(Inkscape::IMMEDIATE_MESSAGE, _("Breaking apart paths..."));
    // set "busy" cursor
    desktop->setWaitingCursor();

    bool did = false;

    std::vector<SPItem*> itemlist(selection->itemList());
    for (std::vector<SPItem*>::const_iterator i = itemlist.begin(); i != itemlist.end(); ++i){

        SPItem *item = *i;

        SPPath *path = dynamic_cast<SPPath *>(item);
        if (!path) {
            continue;
        }

        SPCurve *curve = path->get_curve_for_edit();
        if (curve == NULL) {
            continue;
        }
        did = true;

        Inkscape::XML::Node *parent = item->getRepr()->parent();
        gint pos = item->getRepr()->position();
        char const *id = item->getRepr()->attribute("id");

        // XML Tree being used directly here while it shouldn't be...
        gchar *style = g_strdup(item->getRepr()->attribute("style"));
        // XML Tree being used directly here while it shouldn't be...
        gchar *path_effect = g_strdup(item->getRepr()->attribute("inkscape:path-effect"));
        Geom::Affine transform = path->transform;
        // it's going to resurrect as one of the pieces, so we delete without advertisement
        item->deleteObject(false);


        GSList *list = curve->split();

        curve->unref();

        std::vector<Inkscape::XML::Node*> reprs;
        for (GSList *l = list; l != NULL; l = l->next) {
            curve = (SPCurve *) l->data;

            Inkscape::XML::Node *repr = parent->document()->createElement("svg:path");
            repr->setAttribute("style", style);

            repr->setAttribute("inkscape:path-effect", path_effect);

            gchar *str = sp_svg_write_path(curve->get_pathvector());
            if (path_effect)
                repr->setAttribute("inkscape:original-d", str);
            else
                repr->setAttribute("d", str);
            g_free(str);
            repr->setAttribute("transform", sp_svg_transform_write(transform));
            
            // add the new repr to the parent
            parent->appendChild(repr);

            // move to the saved position
            repr->setPosition(pos > 0 ? pos : 0);

            // if it's the first one, restore id
            if (l == list)
                repr->setAttribute("id", id);

            reprs.push_back(repr);

            Inkscape::GC::release(repr);
        }
        selection->setReprList(reprs);

        g_slist_free(list);
        g_free(style);
        g_free(path_effect);
    }

    desktop->clearWaitingCursor();

    if (did) {
        if ( !skip_undo ) {
            DocumentUndo::done(desktop->getDocument(), SP_VERB_SELECTION_BREAK_APART, 
                               _("Break apart"));
        }
    } else {
        desktop->getMessageStack()->flash(Inkscape::ERROR_MESSAGE, _("<b>No path(s)</b> to break apart in the selection."));
    }
}