/* PSPPIRE - a graphical user interface for PSPP. Copyright (C) 2013, 2014 Free Software Foundation This program 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. This program 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 this program. If not, see . */ /* This file implements a GtkTreeModel. It allows GtkComboBox and GtkTreeView to display the names and non-empty cell ranges of the sheets aka "Tables" of spreadsheet files. It doesn't take any notice of the spreadsheet data itself. */ #include #include #include #include #define _(msgid) gettext (msgid) #define N_(msgid) msgid #include "psppire-spreadsheet-model.h" #include "data/spreadsheet-reader.h" static void psppire_spreadsheet_model_finalize (GObject * object); static void psppire_spreadsheet_model_dispose (GObject * object); static GObjectClass *parent_class = NULL; static void spreadsheet_tree_model_init (GtkTreeModelIface * iface); G_DEFINE_TYPE_WITH_CODE (PsppireSpreadsheetModel,\ psppire_spreadsheet_model,\ G_TYPE_OBJECT, G_IMPLEMENT_INTERFACE (GTK_TYPE_TREE_MODEL, spreadsheet_tree_model_init)) /* Properties */ enum { PROP_0, PROP_SPREADSHEET }; static void psppire_spreadsheet_model_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { PsppireSpreadsheetModel *spreadsheetModel = PSPPIRE_SPREADSHEET_MODEL (object); switch (prop_id) { case PROP_SPREADSHEET: { struct spreadsheet *old = spreadsheetModel->spreadsheet; spreadsheetModel->spreadsheet = spreadsheet_ref (g_value_get_pointer (value)); if (old) spreadsheet_unref (old); } break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; }; } static void psppire_spreadsheet_model_dispose (GObject * object) { PsppireSpreadsheetModel *spreadsheetModel = PSPPIRE_SPREADSHEET_MODEL (object); if (!spreadsheetModel->dispose_has_run) { spreadsheet_unref (spreadsheetModel->spreadsheet); spreadsheetModel->dispose_has_run = TRUE; } } static void psppire_spreadsheet_model_finalize (GObject * object) { // PsppireSpreadsheetModel *spreadsheetModel = PSPPIRE_SPREADSHEET_MODEL (object); } static void psppire_spreadsheet_model_class_init (PsppireSpreadsheetModelClass * class) { GObjectClass *object_class = G_OBJECT_CLASS (class); GParamSpec *spreadsheet_spec = g_param_spec_pointer ("spreadsheet", "Spreadsheet", "The spreadsheet that this model represents", G_PARAM_CONSTRUCT_ONLY | G_PARAM_WRITABLE); parent_class = g_type_class_peek_parent (class); object_class->set_property = psppire_spreadsheet_model_set_property; g_object_class_install_property (object_class, PROP_SPREADSHEET, spreadsheet_spec); object_class->finalize = psppire_spreadsheet_model_finalize; object_class->dispose = psppire_spreadsheet_model_dispose; } static void psppire_spreadsheet_model_init (PsppireSpreadsheetModel * spreadsheetModel) { spreadsheetModel->dispose_has_run = FALSE; spreadsheetModel->stamp = g_random_int (); } GtkTreeModel * psppire_spreadsheet_model_new (struct spreadsheet *sp) { return g_object_new (psppire_spreadsheet_model_get_type (), "spreadsheet", sp, NULL); } static gint tree_model_n_columns (GtkTreeModel * model) { return PSPPIRE_SPREADSHEET_MODEL_N_COLS; } static GtkTreeModelFlags tree_model_get_flags (GtkTreeModel * model) { g_return_val_if_fail (PSPPIRE_IS_SPREADSHEET_MODEL (model), (GtkTreeModelFlags) 0); return GTK_TREE_MODEL_LIST_ONLY; } static GType tree_model_column_type (GtkTreeModel * model, gint index) { g_return_val_if_fail (PSPPIRE_IS_SPREADSHEET_MODEL (model), (GType) 0); g_return_val_if_fail (index < PSPPIRE_SPREADSHEET_MODEL_N_COLS, (GType) 0); if (index == PSPPIRE_SPREADSHEET_MODEL_COL_SHEET_ROWS) return G_TYPE_UINT; return G_TYPE_STRING; } static gboolean tree_model_get_iter (GtkTreeModel * model, GtkTreeIter * iter, GtkTreePath * path) { PsppireSpreadsheetModel *spreadsheetModel = PSPPIRE_SPREADSHEET_MODEL (model); gint *indices, depth; gint n; g_return_val_if_fail (path, FALSE); depth = gtk_tree_path_get_depth (path); g_return_val_if_fail (depth == 1, FALSE); indices = gtk_tree_path_get_indices (path); n = indices[0]; iter->stamp = spreadsheetModel->stamp; iter->user_data = (gpointer) (intptr_t) n; return TRUE; } static gboolean tree_model_iter_next (GtkTreeModel *model, GtkTreeIter *iter) { PsppireSpreadsheetModel *spreadsheetModel = PSPPIRE_SPREADSHEET_MODEL (model); g_assert (iter); g_return_val_if_fail (iter->stamp == spreadsheetModel->stamp, FALSE); if ((intptr_t) iter->user_data>= spreadsheet_get_sheet_n_sheets (spreadsheetModel->spreadsheet) - 1) { iter->user_data = NULL; iter->stamp = 0; return FALSE; } iter->user_data = GINT_TO_POINTER (GPOINTER_TO_INT (iter->user_data) + 1); return TRUE; } static void tree_model_get_value (GtkTreeModel * model, GtkTreeIter * iter, gint column, GValue * value) { PsppireSpreadsheetModel *spreadsheetModel = PSPPIRE_SPREADSHEET_MODEL (model); g_return_if_fail (column < PSPPIRE_SPREADSHEET_MODEL_N_COLS); g_return_if_fail (iter->stamp == spreadsheetModel->stamp); switch (column) { case PSPPIRE_SPREADSHEET_MODEL_COL_NAME: { g_value_init (value, G_TYPE_STRING); const char *x = spreadsheet_get_sheet_name (spreadsheetModel->spreadsheet, (intptr_t) iter->user_data); g_value_set_string (value, x); } break; case PSPPIRE_SPREADSHEET_MODEL_COL_RANGE: { g_value_init (value, G_TYPE_STRING); char *x = spreadsheet_get_sheet_range (spreadsheetModel->spreadsheet, (intptr_t) iter->user_data); g_value_set_string (value, x ? x : _("(empty)")); g_free (x); } break; case PSPPIRE_SPREADSHEET_MODEL_COL_SHEET_ROWS: { g_value_init (value, G_TYPE_UINT); unsigned int rows = spreadsheet_get_sheet_n_rows (spreadsheetModel->spreadsheet, (intptr_t) iter->user_data); g_value_set_uint (value, rows); } break; case PSPPIRE_SPREADSHEET_MODEL_COL_SHEET_COLUMNS: { g_value_init (value, G_TYPE_UINT); unsigned int columns = spreadsheet_get_sheet_n_columns (spreadsheetModel->spreadsheet, (intptr_t) iter->user_data); g_value_set_uint (value, columns); } break; default: g_error ("%s:%d Invalid column in spreadsheet model", __FILE__, __LINE__); break; } } static gboolean tree_model_nth_child (GtkTreeModel * model, GtkTreeIter * iter, GtkTreeIter * parent, gint n) { PsppireSpreadsheetModel *spreadsheetModel = PSPPIRE_SPREADSHEET_MODEL (model); if (parent) return FALSE; if (n>= spreadsheet_get_sheet_n_sheets (spreadsheetModel->spreadsheet)) return FALSE; iter->stamp = spreadsheetModel->stamp; iter->user_data = (gpointer) (intptr_t) n; return TRUE; } static gint tree_model_n_children (GtkTreeModel * model, GtkTreeIter * iter) { PsppireSpreadsheetModel *spreadsheetModel = PSPPIRE_SPREADSHEET_MODEL (model); if (iter == NULL) return spreadsheet_get_sheet_n_sheets (spreadsheetModel->spreadsheet); return 0; } static gboolean tree_model_iter_has_child (GtkTreeModel *tree_model, GtkTreeIter *iter) { return FALSE; } static GtkTreePath * tree_model_get_path (GtkTreeModel * model, GtkTreeIter * iter) { PsppireSpreadsheetModel *spreadsheetModel = PSPPIRE_SPREADSHEET_MODEL (model); GtkTreePath *path; gint index = (intptr_t) iter->user_data; g_return_val_if_fail (iter->stamp == spreadsheetModel->stamp, NULL); path = gtk_tree_path_new (); gtk_tree_path_append_index (path, index); return path; } static gboolean tree_model_children (GtkTreeModel *model, GtkTreeIter *iter, GtkTreeIter *parent) { PsppireSpreadsheetModel *spreadsheetModel = PSPPIRE_SPREADSHEET_MODEL (model); if (parent != NULL) return FALSE; iter->stamp = spreadsheetModel->stamp; iter->user_data = 0; return TRUE; } static void spreadsheet_tree_model_init (GtkTreeModelIface * iface) { iface->get_flags = tree_model_get_flags; iface->get_n_columns = tree_model_n_columns; iface->get_column_type = tree_model_column_type; iface->get_iter = tree_model_get_iter; iface->iter_next = tree_model_iter_next; iface->get_value = tree_model_get_value; iface->iter_children = tree_model_children; iface->iter_parent = NULL; iface->get_path = tree_model_get_path; iface->iter_has_child = tree_model_iter_has_child; iface->iter_n_children = tree_model_n_children; iface->iter_nth_child = tree_model_nth_child; }

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