execution-env.h

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Authors:
 *   Ted Gould <ted@gould.cx>
 *
 * Copyright (C) 2007 Authors
 *
 * Released under GNU GPL v2+, read the file 'COPYING' for more information.
 */
 
#ifndef INKSCAPE_EXTENSION_EXECUTION_ENV_H__
#define INKSCAPE_EXTENSION_EXECUTION_ENV_H__
 
#include <glibmm/main.h>
#include <glibmm/ustring.h>
#include <gtkmm/dialog.h>
#include <memory>
 
#include "selection.h"
 
class SPDesktop;
class SPDocument;
 
namespace Inkscape {
namespace Extension {
 
class Effect;
 
namespace  Implementation
{
class ImplementationDocumentCache;
}
 
class ExecutionEnv {
private:
    enum state_t {
        INIT,     //< The context has been initialized
        COMPLETE, //< We've completed atleast once
        RUNNING   //< The effect is currently running
    };
    state_t _state;
 
    Gtk::Dialog * _visibleDialog = nullptr;
    sigc::signal<void ()> _runComplete;
    Glib::RefPtr<Glib::MainLoop> _mainloop;
    SPDesktop * _desktop = nullptr;
    Implementation::ImplementationDocumentCache * _docCache;
 
    std::unique_ptr<Inkscape::SelectionState> _selectionState;
 
    Effect * _effect;
 
    bool _show_working;
public:
 
    ExecutionEnv (Effect * effect,
                  SPDesktop * desktop,
                  Implementation::ImplementationDocumentCache * docCache = nullptr,
                  bool show_working = true,
                  bool show_errors = true);
    virtual ~ExecutionEnv ();
 
    void run ();
    void cancel ();
    void commit ();
    void undo ();
    bool wait ();
    void reselect ();
 
    Gtk::Dialog *get_working_dialog () { return _visibleDialog; };
 
    // Public according to Core Guideline C.131
    SPDocument *document = nullptr;
private:
    void runComplete ();
    void createWorkingDialog ();
    void workingCanceled (const int resp);
    void genDocCache ();
    void killDocCache ();
};
 
} }  /* namespace Inkscape, Extension */
#endif /* INKSCAPE_EXTENSION_EXECUTION_ENV_H__ */
 
/*
  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 :