Mercurial > octave
view libgui/src/variable-editor-model.h @ 27247:9e5a825bb966
replace more explicit callback functions with lambda expressions
* Canvas.h, Canvas.cc (Canvas::annotation_callback): Delete.
Replace uses of callback functions with equivalent lambda expressions
in calls to octave_link::post_event.
* file-editor-tab.h, file-editor-tab.cc
(file_editor_tab::add_breakpoint_event): New function.
(file_editor_tab::add_breakpoint_callback,
file_editor_tab::remove_breakpoint_callback,
file_editor_tab::remove_all_breakpoints_callback): Delete.
Replace uses of callback functions with equivalent lambda expressions
in calls to octave_link::post_event. Use add_breakpoint_event to
consolidate the calls to post_event for this action to a single function.
* variable-editor-model.h, variable-editor-model.cc
(variable_editor_model::eval_expr_event): New function.
(variable_editor_model::init_from_oct): Eliminate unnecessary function
parameter.
(variable_editor_model::set_data_oct,
variable_editor_model::eval_oct): Delete.
Replace uses of callback functions with equivalent lambda expressions
in calls to octave_link::post_event. Use eval_expr_event to
consolidate the calls to post_event for this action to a single
function.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Fri, 12 Jul 2019 19:26:55 -0400 |
parents | 00f796120a6d |
children | 5f170ea12fa1 |
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/* Copyright (C) 2013-2019 John W. Eaton Copyright (C) 2015 Michael Barnes Copyright (C) 2013 RĂ¼diger Sonderfeld This file is part of Octave. Octave is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. Octave is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Octave; see the file COPYING. If not, see <https://www.gnu.org/licenses/>. */ #if ! defined (variable_editor_model_h) #define variable_editor_model_h 1 #include <QAbstractTableModel> #include <QMap> #include <QString> #include "ov.h" #include "pr-flt-fmt.h" namespace octave { class base_ve_model { public: base_ve_model (const QString &expr, const octave_value& val); virtual ~base_ve_model (void) = default; // No copying! base_ve_model (const base_ve_model&) = delete; base_ve_model& operator = (const base_ve_model&) = delete; virtual void maybe_resize_rows (int) { } virtual void maybe_resize_columns (int) { } std::string name (void) const; bool index_ok (const QModelIndex& idx, int& row, int& col) const; virtual bool is_editable (void) const { return true; } virtual octave_value value_at (const QModelIndex& idx) const; int column_width (void) const; int rowCount (const QModelIndex& = QModelIndex ()) const; int columnCount (const QModelIndex& = QModelIndex ()) const; QString edit_display_sub (const octave_value& elt, int role) const; virtual QVariant edit_display (const QModelIndex& idx, int role) const; QVariant data (const QModelIndex& idx, int role = Qt::DisplayRole) const; virtual bool requires_sub_editor (const QModelIndex& idx) const; void set_update_pending (const QModelIndex& idx, const QString& str); bool update_pending (const QModelIndex& idx) const; QString update_pending_data (const QModelIndex& idx) const; void clear_update_pending (void); virtual char quote_char (const QModelIndex& idx) const; virtual QVariant header_data (int section, Qt::Orientation orientation, int role) const; // Return a subscript expression as a string that can be used to // access a sub-element of a data structure. For example "{1,3}" // for cell array element {1,3} or "(2,4)" for array element (2,4). virtual QString subscript_expression (const QModelIndex& idx) const; bool is_valid (void) const { return m_valid; } octave_idx_type data_rows (void) const { return m_data_rows; } octave_idx_type data_columns (void) const { return m_data_cols; } int display_rows (void) const { return m_display_rows; } int display_columns (void) const { return m_display_cols; } virtual QString make_description_text (void) const; void reset (const octave_value& val); protected: std::string m_name; octave_value m_value; octave_idx_type m_data_rows; octave_idx_type m_data_cols; // Qt table widget limits the size to int. int m_display_rows; int m_display_cols; QMap<QModelIndex, QString> m_update_pending; bool m_valid; float_display_format m_display_fmt; }; class variable_editor_model : public QAbstractTableModel { Q_OBJECT private: static base_ve_model * create (const QString &expr, const octave_value& val); public: variable_editor_model (const QString &expr, const octave_value& val, QObject *parent = nullptr); ~variable_editor_model (void) { delete rep; } // No copying! variable_editor_model (const variable_editor_model&) = delete; variable_editor_model& operator = (const variable_editor_model&) = delete; std::string name (void) const { return rep->name (); } bool is_editable (void) const { return rep->is_editable (); } octave_value value_at (const QModelIndex& idx) const { return rep->value_at (idx); } int column_width (void) const { return rep->column_width (); } int rowCount (const QModelIndex& idx = QModelIndex ()) const { return rep->rowCount (idx); } int columnCount (const QModelIndex& idx = QModelIndex ()) const { return rep->columnCount (idx); } QVariant data (const QModelIndex& idx = QModelIndex (), int role = Qt::DisplayRole) const { return rep->data (idx, role); } bool setData (const QModelIndex& idx, const QVariant& v, int role = Qt::EditRole); bool clear_content (const QModelIndex& idx); Qt::ItemFlags flags (const QModelIndex& idx) const; bool insertRows (int row, int count, const QModelIndex& parent = QModelIndex()); bool removeRows (int row, int count, const QModelIndex& parent = QModelIndex()); bool insertColumns (int column, int count, const QModelIndex& parent = QModelIndex()); bool removeColumns (int column, int count, const QModelIndex& parent = QModelIndex()); // Is cell at idx complex enough to require a sub editor? bool requires_sub_editor (const QModelIndex& idx) const { return rep->requires_sub_editor (idx); } void set_update_pending (const QModelIndex& idx, const QString& str) { rep->set_update_pending (idx, str); } bool update_pending (const QModelIndex& idx) const { return rep->update_pending (idx); } QString update_pending_data (const QModelIndex& idx) const { return rep->update_pending_data (idx); } void clear_update_pending (void) { rep->clear_update_pending (); } char quote_char (const QModelIndex& idx) const { return rep->quote_char (idx); } QVariant headerData (int section, Qt::Orientation orientation, int role) const { return rep->header_data (section, orientation, role); } // Return a subscript expression as a string that can be used to // access a sub-element of a data structure. For example "{1,3}" // for cell array element {1,3} or "(2,4)" for array element (2,4). QString subscript_expression (const QModelIndex& idx) const { return rep->subscript_expression (idx); } int display_rows (void) const { return rep->display_rows (); } int display_columns (void) const { return rep->display_columns (); } void maybe_resize_rows (int rows); void maybe_resize_columns (int cols); signals: void update_data_signal (const octave_value& val); void data_error_signal (const QString& name) const; void user_error_signal (const QString& title, const QString& msg) const; void set_editable_signal (bool); void description_changed (const QString& description); void edit_variable_signal (const QString& name, const octave_value& val); public slots: void update_data (const octave_value& val); void update_data_cache (void); void double_click (const QModelIndex& idx); private slots: void data_error (const QString& msg); void user_error (const QString& title, const QString& msg); private: base_ve_model *rep; void init_from_oct (void); void eval_expr_event (const QString& expr); octave_value retrieve_variable (const std::string& name); bool is_valid (void) const { return rep->is_valid (); } octave_idx_type data_rows (void) const { return rep->data_rows (); } octave_idx_type data_columns (void) const { return rep->data_columns (); } void change_display_size (int old_rows, int old_cols, int new_rows, int new_cols); QString make_description_text (void) const { return rep->make_description_text (); } void reset (const octave_value& val); void invalidate (void); void update_description (const QString& description = QString ()); void evaluation_error (const std::string& expr) const; }; } #endif