styledialog.h

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// SPDX-License-Identifier: GPL-2.0-or-later
/* Authors:
 *   Kamalpreet Kaur Grewal
 *   Tavmjong Bah
 *   Jabiertxof
 *
 * Copyright (C) Kamalpreet Kaur Grewal 2016 <grewalkamal005@gmail.com>
 * Copyright (C) Tavmjong Bah 2017 <tavmjong@free.fr>
 *
 * Released under GNU GPL v2+, read the file 'COPYING' for more information.
 */
 
#ifndef SEEN_UI_DIALOG_STYLEDIALOG_H
#define SEEN_UI_DIALOG_STYLEDIALOG_H
 
#include <gtkmm/scrolledwindow.h>
#include <gtkmm/treepath.h>
 
#include "ui/dialog/dialog-base.h"
 
namespace Gtk {
class Adjustment;
class CellEditable;
class Dialog;
class Entry;
class TreeStore;
class TreeView;
class TreeViewColumn;
} // namespace Gtk
 
struct SPStyleEnum;
 
class SPObject;
 
namespace Inkscape {
 
class Selection;
 
namespace XML {
class Node;
class NodeObserver;
} // namespace XML
 
namespace UI::Dialog {
 
// for selectorsdialog.cpp
XML::Node *get_first_style_text_node(XML::Node *root, bool create_if_missing);
 
class StyleDialog final : public DialogBase
{
public:
    StyleDialog();
    ~StyleDialog() final;
 
    void documentReplaced() final;
    void selectionChanged(Selection *selection) final;
 
    void setCurrentSelector(Glib::ustring current_selector);
    Gtk::TreeView *_current_css_tree;
    Gtk::TreeViewColumn *_current_value_col;
    Gtk::TreeModel::Path _current_path;
    bool _deletion{false};
    void readStyleElement();
 
  private:
    using AttrProp = std::map<Glib::ustring, Glib::ustring>;
 
    // Monitor <style> element for changes.
    class NodeObserver;
    // Monitor all objects for addition/removal/attribute change
    class NodeWatcher;
    void _nodeAdded(Inkscape::XML::Node &repr);
    void _nodeRemoved(Inkscape::XML::Node &repr);
    void _nodeChanged(Inkscape::XML::Node &repr);
    void removeObservers();
 
    // Data structure
    class ModelColumns : public Gtk::TreeModel::ColumnRecord {
      public:
        ModelColumns()
        {
            add(_colActive);
            add(_colName);
            add(_colValue);
            add(_colStrike);
            add(_colSelector);
            add(_colSelectorPos);
            add(_colOwner);
            add(_colLinked);
            add(_colHref);
        }
        Gtk::TreeModelColumn<bool> _colActive;            // Active or inactive property
        Gtk::TreeModelColumn<Glib::ustring> _colName;     // Name of the property.
        Gtk::TreeModelColumn<Glib::ustring> _colValue;    // Value of the property.
        Gtk::TreeModelColumn<bool> _colStrike;            // Property not used, overloaded
        Gtk::TreeModelColumn<Glib::ustring> _colSelector; // Style or matching object id.
        Gtk::TreeModelColumn<int> _colSelectorPos;        // Position of the selector to handle dup selectors
        Gtk::TreeModelColumn<Glib::ustring> _colOwner;    // Store the owner of the property for popup
        Gtk::TreeModelColumn<bool> _colLinked;            // Other object linked
        Gtk::TreeModelColumn<SPObject *> _colHref;        // Is going to another object
    };
    ModelColumns _mColumns;
 
    class CSSData : public Gtk::TreeModel::ColumnRecord {
      public:
        CSSData() { add(_colCSSData); }
        Gtk::TreeModelColumn<Glib::ustring> _colCSSData; // Name of the property.
    };
    CSSData _mCSSData;
 
    unsigned _deleted_pos{0};
 
    // Widgets
    Gtk::ScrolledWindow _scrolledWindow;
    Glib::RefPtr<Gtk::Adjustment> _vadj;
    Gtk::Box _mainBox;
    Gtk::Box _styleBox;
 
    // Reading and writing the style element.
 
    Inkscape::XML::Node *_getStyleTextNode(bool create_if_missing = false);
 
    void _writeStyleElement(Glib::RefPtr<Gtk::TreeStore> const &store,
                            Glib::ustring selector, Glib::ustring const &new_selector = {});
 
    void _activeToggled(const Glib::ustring &path, Glib::RefPtr<Gtk::TreeStore> const &store);
 
    void _addRow(Glib::RefPtr<Gtk::TreeStore> const &store, Gtk::TreeView *css_tree,
                 Glib::ustring const &selector, int pos);
 
    void _onPropDelete(Glib::ustring const &path, Glib::RefPtr<Gtk::TreeStore> const &store);
 
    void _nameEdited(const Glib::ustring &path, const Glib::ustring &name, Glib::RefPtr<Gtk::TreeStore> store,
                     Gtk::TreeView *css_tree);
 
    Gtk::Entry *_editingEntry = nullptr;
    void _addTreeViewHandlers(Gtk::TreeView &treeview);
    void _setEditingEntry(Gtk::Entry *entry, Glib::ustring endChars);
    void _onTreeViewKeyReleased(unsigned keyval, unsigned keycode, Gdk::ModifierType state);
    void _onTreeViewFocusLeave();
 
    void _onLinkObj(Glib::ustring const &path, Glib::RefPtr<Gtk::TreeStore> const &store);
 
    void _valueEdited(const Glib::ustring &path, const Glib::ustring &value, Glib::RefPtr<Gtk::TreeStore> store);
    void _startNameEdit(Gtk::CellEditable *cell, const Glib::ustring &path);
    void _startValueEdit(Gtk::CellEditable *cell, const Glib::ustring &path, Glib::RefPtr<Gtk::TreeStore> store);
 
    void _setAutocompletion(Gtk::Entry *entry, SPStyleEnum const cssenum[]);
    void _setAutocompletion(Gtk::Entry *entry, Glib::ustring name);
    bool _on_foreach_iter(const Gtk::TreeModel::iterator &iter);
    void _reload();
    void _vscroll();
 
    bool _scrollock;
    double _scrollpos{0};
    Glib::ustring _current_selector;
 
    // Update watchers
    std::unique_ptr<XML::NodeObserver> const m_nodewatcher;
    std::unique_ptr<XML::NodeObserver> const m_styletextwatcher;
 
    // Manipulate Tree
    std::vector<SPObject *> _getObjVec(Glib::ustring selector);
    AttrProp parseStyle(Glib::ustring style_string);
    AttrProp _owner_style;
    void _addOwnerStyle(Glib::ustring name, Glib::ustring selector);
 
    // Variables
    Inkscape::XML::Node *m_root{nullptr};
    Inkscape::XML::Node *_textNode{nullptr}; // Track so we know when to add a NodeObserver.
    bool _updating{false};                   // Prevent cyclic actions: read <-> write, select via dialog <-> via desktop
 
    void _closeDialog(Gtk::Dialog *textDialogPtr);
};
 
} // namespace UI::Dialog
 
} // namespace Inkscape
 
#endif // SEEN_UI_DIALOG_STYLEDIALOG_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:fileencoding=utf-8:textwidth=99 :