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// SPDX-License-Identifier: GPL-2.0-or-later
/** @file
* @brief A dialog for CSS selectors
*/
/* Authors:
* Kamalpreet Kaur Grewal
* Tavmjong Bah
*
* 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 SELECTORSDIALOG_H
#define SELECTORSDIALOG_H
#include "ui/dialog/desktop-tracker.h"
#include "ui/dialog/dialog-manager.h"
#include "ui/dialog/styledialog.h"
#include "ui/widget/panel.h"
#include <gtkmm/dialog.h>
#include <gtkmm/paned.h>
#include <gtkmm/radiobutton.h>
#include <gtkmm/scrolledwindow.h>
#include <gtkmm/switch.h>
#include <gtkmm/treemodelfilter.h>
#include <gtkmm/treeselection.h>
#include <gtkmm/treestore.h>
#include <gtkmm/treeview.h>
#include <ui/widget/panel.h>
#include "xml/helper-observer.h"
#include <memory>
#include <vector>
namespace Inkscape {
namespace UI {
namespace Dialog {
/**
* @brief The SelectorsDialog class
* A list of CSS selectors will show up in this dialog. This dialog allows one to
* add and delete selectors. Elements can be added to and removed from the selectors
* in the dialog. Selection of any selector row selects the matching objects in
* the drawing and vice-versa. (Only simple selectors supported for now.)
*
* This class must keep two things in sync:
* 1. The text node of the style element.
* 2. The Gtk::TreeModel.
*/
class SelectorsDialog : public Widget::Panel {
public:
~SelectorsDialog() override;
// No default constructor, noncopyable, nonassignable
SelectorsDialog();
SelectorsDialog(SelectorsDialog const &d) = delete;
SelectorsDialog operator=(SelectorsDialog const &d) = delete;
static SelectorsDialog &getInstance() { return *new SelectorsDialog(); }
private:
// Monitor <style> element for changes.
class NodeObserver;
// Monitor all objects for addition/removal/attribute change
class NodeWatcher;
enum SelectorType { CLASS, ID, TAG };
void _nodeAdded( Inkscape::XML::Node &repr );
void _nodeRemoved( Inkscape::XML::Node &repr );
void _nodeChanged( Inkscape::XML::Node &repr );
// Data structure
enum coltype { OBJECT, SELECTOR, OTHER };
class ModelColumns : public Gtk::TreeModel::ColumnRecord {
public:
ModelColumns() {
add(_colSelector);
add(_colExpand);
add(_colType);
add(_colObj);
add(_colProperties);
add(_colVisible);
add(_colSelected);
}
Gtk::TreeModelColumn<Glib::ustring> _colSelector; // Selector or matching object id.
Gtk::TreeModelColumn<bool> _colExpand; // Open/Close store row.
Gtk::TreeModelColumn<gint> _colType; // Selector row or child object row.
Gtk::TreeModelColumn<std::vector<SPObject *> > _colObj; // List of matching objects.
Gtk::TreeModelColumn<Glib::ustring> _colProperties; // List of properties.
Gtk::TreeModelColumn<bool> _colVisible; // Make visible or not.
Gtk::TreeModelColumn<gint> _colSelected; // Make selected.
};
ModelColumns _mColumns;
// Override Gtk::TreeStore to control drag-n-drop (only allow dragging and dropping of selectors).
// See: https://developer.gnome.org/gtkmm-tutorial/stable/sec-treeview-examples.html.en
//
// TreeStore implements simple drag and drop (DND) but there appears no way to know when a DND
// has been completed (other than doing the whole DND ourselves). As a hack, we use
// on_row_deleted to trigger write of style element.
class TreeStore : public Gtk::TreeStore {
protected:
TreeStore();
bool row_draggable_vfunc(const Gtk::TreeModel::Path& path) const override;
bool row_drop_possible_vfunc(const Gtk::TreeModel::Path& path,
const Gtk::SelectionData& selection_data) const override;
void on_row_deleted(const TreeModel::Path& path) override;
public:
static Glib::RefPtr<SelectorsDialog::TreeStore> create(SelectorsDialog *styledialog);
private:
SelectorsDialog *_selectorsdialog;
};
// TreeView
Glib::RefPtr<Gtk::TreeModelFilter> _modelfilter;
Glib::RefPtr<TreeStore> _store;
Gtk::TreeView _treeView;
Gtk::TreeModel::Path _lastpath;
// Widgets
StyleDialog *_style_dialog;
Gtk::Paned _paned;
Glib::RefPtr<Gtk::Adjustment> _vadj;
Gtk::Box _button_box;
Gtk::Box _selectors_box;
Gtk::ScrolledWindow _scrolled_window_selectors;
Gtk::Button _del;
Gtk::Button _create;
// Reading and writing the style element.
Inkscape::XML::Node *_getStyleTextNode(bool create_if_missing = false);
void _readStyleElement();
void _writeStyleElement();
// Update watchers
std::unique_ptr<Inkscape::XML::NodeObserver> m_nodewatcher;
std::unique_ptr<Inkscape::XML::NodeObserver> m_styletextwatcher;
void _updateWatchers(SPDesktop *);
// Manipulate Tree
void _addToSelector(Gtk::TreeModel::Row row);
void _removeFromSelector(Gtk::TreeModel::Row row);
Glib::ustring _getIdList(std::vector<SPObject *>);
std::vector<SPObject *> _getObjVec(Glib::ustring selector);
void _insertClass(const std::vector<SPObject *>& objVec, const Glib::ustring& className);
void _insertClass(SPObject *obj, const Glib::ustring &className);
void _removeClass(const std::vector<SPObject *> &objVec, const Glib::ustring &className, bool all = false);
void _removeClass(SPObject *obj, const Glib::ustring &className, bool all = false);
void _toggleDirection(Gtk::RadioButton *vertical);
void _showWidgets();
void _resized();
void _childresized();
void _panedresized(Gtk::Allocation allocation);
void _selectObjects(int, int);
// Variables
double _scroolpos;
bool _scroollock;
bool _updating; // Prevent cyclic actions: read <-> write, select via dialog <-> via desktop
Inkscape::XML::Node *m_root = nullptr;
Inkscape::XML::Node *_textNode; // Track so we know when to add a NodeObserver.
// Signals and handlers - External
sigc::connection _document_replaced_connection;
sigc::connection _desktop_changed_connection;
sigc::connection _selection_changed_connection;
void _handleDocumentReplaced(SPDesktop* desktop, SPDocument *document);
void _handleDesktopChanged(SPDesktop* desktop);
void _handleSelectionChanged();
void _panedrealized();
void _rowExpand(const Gtk::TreeModel::iterator &iter, const Gtk::TreeModel::Path &path);
void _rowCollapse(const Gtk::TreeModel::iterator &iter, const Gtk::TreeModel::Path &path);
void _closeDialog(Gtk::Dialog *textDialogPtr);
DesktopTracker _desktopTracker;
Inkscape::XML::SignalObserver _objObserver; // Track object in selected row (for style change).
// Signal and handlers - Internal
void _addSelector();
void _delSelector();
bool _handleButtonEvent(GdkEventButton *event);
void _buttonEventsSelectObjs(GdkEventButton *event);
void _selectRow(); // Select row in tree when selection changed.
void _vscrool();
// GUI
void _styleButton(Gtk::Button& btn, char const* iconName, char const* tooltip);
};
} // namespace Dialogc
} // namespace UI
} // namespace Inkscape
#endif // SELECTORSDIALOG_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 :
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