// Find dialog derived from an example from Qt Toolkit (license below (**))

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// or <https://octave.org/copyright/>.
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////////////////////////////////////////////////////////////////////////

#if ! defined (octave_find_dialog_h)
#define octave_find_dialog_h 1

#include <QDialog>
#include <QComboBox>

#include "octave-qscintilla.h"
#include "octave-dock-widget.h"

class QCheckBox;
class QDialogButtonBox;
class QGroupBox;
class QLabel;
class QLineEdit;
class QPushButton;

namespace octave
{
  class base_qobject;
  class file_editor;

  class find_dialog : public QDialog
  {
    Q_OBJECT

  public:

    find_dialog (base_qobject& oct_qobj, octave_dock_widget *ed, QWidget *p);

    //! Set dialog visible or not and storing the new visibility state
    void set_visible (bool visible);

    //! Init the search text with the selected text in the editor tab
    void init_search_text (void);

    //! Restore position and the search options from the given settings
    //! where def_pos is the default position suitable for the current
    //! editor position
    void restore_settings (QPoint def_pos);

  public slots:

    void find_next (void);
    void find_prev (void);

    //! Slot for updating the edit area when the active tab has changed
    void update_edit_area (octave_qscintilla *);

  private slots:

    void handle_sel_search_changed (int);
    void handle_selection_changed (bool has_selected);

    void handle_backward_search_changed (int);

    void find (bool forward = true);
    void replace (void);
    void replace_all (void);

  private:

    base_qobject& m_octave_qobj;

    //! Save position and the search options in the given settings
    void save_settings ();

    //! Reimplemented slot: close instead of hiding
    void reject ();

    //! Reimplemented close event
    void closeEvent (QCloseEvent *e);

    //! Update mru lists with new entry
    void mru_update (QComboBox *mru);

    void no_matches_message (void);
    void do_replace (void);

    void handle_search_text_changed (void);
    void handle_replace_text_changed (void);

    octave_dock_widget *m_editor;

    QLabel *m_search_label;
    QComboBox *m_search_line_edit;
    QLabel *m_replace_label;
    QComboBox *m_replace_line_edit;
    QCheckBox *m_case_check_box;
    QCheckBox *m_from_start_check_box;
    QCheckBox *m_wrap_check_box;
    QCheckBox *m_whole_words_check_box;
    QCheckBox *m_regex_check_box;
    QCheckBox *m_search_selection_check_box;
    QCheckBox *m_backward_check_box;
    QDialogButtonBox *m_button_box;
    QPushButton *m_find_next_button;
    QPushButton *m_find_prev_button;
    QPushButton *m_replace_button;
    QPushButton *m_replace_all_button;
    QPushButton *m_more_button;
    QWidget *m_extension;
    octave_qscintilla *m_edit_area;
    bool m_find_result_available;
    int m_rep_all;
    bool m_rep_active;

    bool m_in_sel;
    int m_sel_beg;
    int m_sel_end;

    QPoint m_last_position;

    const int m_mru_length = 10;
  };
}

#endif
