actions-undo-document.cpp

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// SPDX-License-Identifier: GPL-2.0-or-later
#include <giomm.h>
#include <glibmm/i18n.h>
 
#include "actions-undo-document.h"
#include "actions-helper.h"
 
#include "document.h"
#include "document-undo.h"
#include "inkscape-application.h"
 
// ifdef out for headless operation!
#include "desktop.h"
#include "inkscape-window.h"
#include "ui/tools/tool-base.h"
#include "ui/widget/canvas.h"
 
void
undo(SPDocument* document)
{
    auto app = InkscapeApplication::instance();
    auto win = app->get_active_window();
 
    // Undo can be used in headless mode.
    if (win) {
        auto desktop = win->get_desktop();
 
        // No undo while dragging, or if the tool handled this undo.
        if (desktop->getCanvas()->is_dragging()) {
            return;
        }
    }
 
    Inkscape::DocumentUndo::undo(document);
}
 
void
redo(SPDocument* document)
{
    auto app = InkscapeApplication::instance();
    auto win = app->get_active_window();
 
    // Redo can be used in headless mode.
    if (win) {
        auto desktop = win->get_desktop();
 
        // No redo while dragging, or if the tool handled this redo
        if (desktop->getCanvas()->is_dragging()) {
            return;
        }
    }
 
    Inkscape::DocumentUndo::redo(document);
}
 
void
enable_undo_actions(SPDocument* document, bool undo, bool redo)
{
    auto group = document->getActionGroup();
    if (!group)
        return;
    auto undo_action = group->lookup_action("undo");
    auto redo_action = group->lookup_action("redo");
    auto undo_saction = std::dynamic_pointer_cast<Gio::SimpleAction>(undo_action);
    auto redo_saction = std::dynamic_pointer_cast<Gio::SimpleAction>(redo_action);
    // GTK4
    // auto undo_saction = dynamic_cast<Gio::SimpleAction*>(undo_action);
    // auto redo_saction = dynamic_cast<Gio::SimpleAction*>(redo_action);
    if (!undo_saction || !redo_saction) {
        show_output("UndoActions: can't find undo or redo action!");
        return;
    }
    // Enable/disable menu items.
    undo_saction->set_enabled(undo);
    redo_saction->set_enabled(redo);
}
 
const Glib::ustring SECTION = NC_("Action Section", "Edit Document");
 
std::vector<std::vector<Glib::ustring>> raw_data_undo_document =
{
    // clang-format off
    {"doc.undo", N_("Undo"), SECTION, N_("Undo last action")},
    {"doc.redo", N_("Redo"), SECTION, N_("Do again the last undone action")},
    // clang-format on
};
 
void
add_actions_undo_document(SPDocument* document)
{
    auto group = document->getActionGroup();
    
    // clang-format off
    group->add_action( "undo",                            sigc::bind(sigc::ptr_fun(&undo), document));
    group->add_action( "redo",                            sigc::bind(sigc::ptr_fun(&redo), document));
    // clang-format on
 
    auto app = InkscapeApplication::instance();
    if (!app) { // i.e. Inkview
        return;
    }
    app->get_action_extra_data().add_data(raw_data_undo_document);
}
 
/*
  Local Variables:
  mode:c++
  c-file-style:"stroustrup"
  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
  indent-tabs-mode:nil
  fill-column:99
  End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :