Mercurial > hg > octave-nkf
view libgui/src/workspace-model.cc @ 15880:df1aceb8f0bc ss-3-7-1
snapshot version 3.7.1
* configure.ac (AC_INIT): Set version to 3.7.1.
(OCTAVE_RELEASE_DATE): Set to 2013-01-02.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Wed, 02 Jan 2013 15:16:08 -0500 |
parents | 7f423c6111c6 |
children | 0486a29d780f |
line wrap: on
line source
/* Copyright (C) 2011-2012 Jacob Dawid 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 <http://www.gnu.org/licenses/>. */ #ifdef HAVE_CONFIG_H #include <config.h> #endif #include <QTreeWidget> #include <QTime> #include <list> #include "symtab.h" #include "variables.h" #include "workspace-model.h" #include "octave-link.h" workspace_model::workspace_model(QObject *p) : QAbstractItemModel (p) { QList<QVariant> rootData; rootData << tr ("Name") << tr ("Class") << tr("Dimension") << tr ("Value"); _rootItem = new tree_item(rootData); insert_top_level_item(0, new tree_item ("Local")); insert_top_level_item(1, new tree_item ("Global")); insert_top_level_item(2, new tree_item ("Persistent")); connect(&_update_workspace_model_timer, SIGNAL (timeout ()), this, SLOT (request_update_workspace())); _update_workspace_model_timer.setInterval (500); _update_workspace_model_timer.setSingleShot (true); _update_workspace_model_timer.start (); } workspace_model::~workspace_model() { delete _rootItem; } void workspace_model::request_update_workspace () { octave_link::post_event (this, &workspace_model::update_workspace_callback); } QModelIndex workspace_model::index(int row, int column, const QModelIndex &p) const { if (!hasIndex(row, column, p)) return QModelIndex(); tree_item *parentItem; if (!p.isValid()) parentItem = _rootItem; else parentItem = static_cast<tree_item*>(p.internalPointer()); tree_item *childItem = parentItem->child(row); if (childItem) return createIndex(row, column, childItem); else return QModelIndex(); } QModelIndex workspace_model::parent(const QModelIndex &idx) const { if (!idx.isValid()) return QModelIndex(); tree_item *childItem = static_cast<tree_item*>(idx.internalPointer()); if (childItem) { tree_item *parentItem = childItem->parent(); if (! parentItem || parentItem == _rootItem) return QModelIndex(); return createIndex(parentItem->row(), 0, parentItem); } else return QModelIndex (); } int workspace_model::rowCount(const QModelIndex &p) const { tree_item *parentItem; if (p.column() > 0) return 0; if (!p.isValid()) parentItem = _rootItem; else parentItem = static_cast<tree_item*>(p.internalPointer()); return parentItem->child_count(); } int workspace_model::columnCount(const QModelIndex &p) const { if (p.isValid()) return static_cast<tree_item*>(p.internalPointer())->column_count(); else return _rootItem->column_count(); } void workspace_model::insert_top_level_item(int at, tree_item *treeItem) { _rootItem->insert_child_item(at, treeItem); } tree_item * workspace_model::top_level_item (int at) { return _rootItem->child(at); } Qt::ItemFlags workspace_model::flags(const QModelIndex &idx) const { if (!idx.isValid()) return 0; return Qt::ItemIsEnabled | Qt::ItemIsSelectable; } QVariant workspace_model::headerData(int section, Qt::Orientation orientation, int role) const { if (orientation == Qt::Horizontal && role == Qt::DisplayRole) return _rootItem->data(section); return QVariant(); } QVariant workspace_model::data(const QModelIndex &idx, int role) const { if (!idx.isValid()) return QVariant(); if (role != Qt::DisplayRole) return QVariant(); tree_item *item = static_cast<tree_item*>(idx.internalPointer()); return item->data(idx.column()); } void workspace_model::update_workspace_callback (void) { std::list < symbol_table::symbol_record > symbolTable = symbol_table::all_variables (); _symbol_information.clear (); for (std::list < symbol_table::symbol_record > ::iterator iterator = symbolTable.begin (); iterator != symbolTable.end (); iterator++) _symbol_information.push_back (symbol_information (*iterator)); beginResetModel(); top_level_item (0)->delete_child_items (); top_level_item (1)->delete_child_items (); top_level_item (2)->delete_child_items (); foreach (const symbol_information& s, _symbol_information) { tree_item *child = new tree_item (); child->set_data (0, s.symbol ()); child->set_data (1, s.class_name ()); child->set_data (2, s.dimension ()); child->set_data (3, s.value ()); switch (s.scope ()) { case symbol_information::local: top_level_item (0)->add_child (child); break; case symbol_information::global: top_level_item (1)->add_child (child); break; case symbol_information::persistent: top_level_item (2)->add_child (child); break; default: break; } } endResetModel(); emit model_changed(); // Post a new event in a given time. // This prevents flooding the event queue when no events are being processed. _update_workspace_model_timer.start (); }