X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fui%2Fgui%2Fpsppire-data-store.c;h=8832e5175e73160989175ff255be8c9dc73af7c7;hb=378b066491cc80d34f31683357c05be853250b80;hp=e8537bcc1bce2d85a6b25dd83135bdc86a140340;hpb=573068f2bdcd3f8796e9646668fed910a90f890b;p=pspp diff --git a/src/ui/gui/psppire-data-store.c b/src/ui/gui/psppire-data-store.c index e8537bcc1b..8832e5175e 100644 --- a/src/ui/gui/psppire-data-store.c +++ b/src/ui/gui/psppire-data-store.c @@ -1,12 +1,9 @@ -/* psppire-data-store.c - - PSPPIRE --- A Graphical User Interface for PSPP - Copyright (C) 2006 Free Software Foundation - Written by John Darrington +/* PSPPIRE - a graphical user interface for PSPP. + Copyright (C) 2006, 2008, 2009, 2010, 2011, 2012, 2013 Free Software Foundation - This program is free software; you can redistribute it and/or modify + 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 2 of the License, or + 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, @@ -15,55 +12,72 @@ 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, write to the Free Software - Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - 02110-1301, USA. */ + along with this program. If not, see . */ #include #include #include +#include +#define _(msgid) gettext (msgid) +#define N_(msgid) msgid -#include -#include -#include +#include +#include +#include + +#include + +#include -#include "psppire-variable.h" #include "psppire-data-store.h" +#include +#include "helper.h" #include #include #include #include +#include + +#include -#include -#include +#include "xalloc.h" +#include "xmalloca.h" -#define _(A) A -#define N_(A) A static void psppire_data_store_init (PsppireDataStore *data_store); static void psppire_data_store_class_init (PsppireDataStoreClass *class); -static void psppire_data_store_sheet_model_init (GSheetModelIface *iface); -static void psppire_data_store_sheet_column_init (GSheetColumnIface *iface); + static void psppire_data_store_finalize (GObject *object); +static void psppire_data_store_dispose (GObject *object); -static const gchar *const psppire_data_store_get_string(GSheetModel *sheet_model, gint row, gint column); +static gboolean psppire_data_store_insert_case (PsppireDataStore *ds, + struct ccase *cc, + casenumber posn); -static gboolean psppire_data_store_set_string(GSheetModel *model, - const gchar *text, gint row, gint column); -static gboolean psppire_data_store_clear_datum(GSheetModel *model, - gint row, gint column); +static gboolean psppire_data_store_data_in (PsppireDataStore *ds, + casenumber casenum, gint idx, + struct substring input, + const struct fmt_spec *fmt); +static GObjectClass *parent_class = NULL; -#define MIN_COLUMNS 10 -#define max(A,B) ((A>B)?A:B) +enum + { + BACKEND_CHANGED, + CASES_DELETED, + CASE_INSERTED, + CASE_CHANGED, + n_SIGNALS + }; + +static guint signals [n_SIGNALS]; -static GObjectClass *parent_class = NULL; -inline GType +GType psppire_data_store_get_type (void) { static GType data_store_type = 0; @@ -83,38 +97,15 @@ psppire_data_store_get_type (void) (GInstanceInitFunc) psppire_data_store_init, }; - static const GInterfaceInfo sheet_model_info = - { - (GInterfaceInitFunc) psppire_data_store_sheet_model_init, - NULL, - NULL - }; - - static const GInterfaceInfo sheet_column_info = - { - (GInterfaceInitFunc) psppire_data_store_sheet_column_init, - NULL, - NULL - }; - - - - data_store_type = g_type_register_static (G_TYPE_OBJECT, "PsppireDataStore", + data_store_type = g_type_register_static (G_TYPE_OBJECT, + "PsppireDataStore", &data_store_info, 0); - - g_type_add_interface_static (data_store_type, - G_TYPE_SHEET_MODEL, - &sheet_model_info); - - g_type_add_interface_static (data_store_type, - G_TYPE_SHEET_COLUMN, - &sheet_column_info); - } return data_store_type; } + static void psppire_data_store_class_init (PsppireDataStoreClass *class) { @@ -124,131 +115,159 @@ psppire_data_store_class_init (PsppireDataStoreClass *class) object_class = (GObjectClass*) class; object_class->finalize = psppire_data_store_finalize; + object_class->dispose = psppire_data_store_dispose; + + signals [BACKEND_CHANGED] = + g_signal_new ("backend-changed", + G_TYPE_FROM_CLASS (class), + G_SIGNAL_RUN_FIRST, + 0, + NULL, NULL, + g_cclosure_marshal_VOID__VOID, + G_TYPE_NONE, + 0); + + signals [CASE_INSERTED] = + g_signal_new ("case-inserted", + G_TYPE_FROM_CLASS (class), + G_SIGNAL_RUN_FIRST, + 0, + NULL, NULL, + g_cclosure_marshal_VOID__INT, + G_TYPE_NONE, + 1, + G_TYPE_INT); + + + signals [CASE_CHANGED] = + g_signal_new ("case-changed", + G_TYPE_FROM_CLASS (class), + G_SIGNAL_RUN_FIRST, + 0, + NULL, NULL, + g_cclosure_marshal_VOID__INT, + G_TYPE_NONE, + 1, + G_TYPE_INT); + + signals [CASES_DELETED] = + g_signal_new ("cases-deleted", + G_TYPE_FROM_CLASS (class), + G_SIGNAL_RUN_FIRST, + 0, + NULL, NULL, + psppire_marshal_VOID__INT_INT, + G_TYPE_NONE, + 2, + G_TYPE_INT, + G_TYPE_INT); } -static void -psppire_data_store_init (PsppireDataStore *data_store) -{ - data_store->dict = 0; - data_store->cases = 0; -} -const PangoFontDescription * -psppire_data_store_get_font_desc(GSheetModel *model, - gint row, gint column) +static gboolean +psppire_data_store_insert_value (PsppireDataStore *ds, + gint width, gint where); + +casenumber +psppire_data_store_get_case_count (const PsppireDataStore *store) { - PsppireDataStore *store = PSPPIRE_DATA_STORE(model); - - return store->font_desc; + return datasheet_get_n_rows (store->datasheet); } - -static void -psppire_data_store_sheet_model_init (GSheetModelIface *iface) +size_t +psppire_data_store_get_value_count (const PsppireDataStore *store) { - iface->get_string = psppire_data_store_get_string; - iface->set_string = psppire_data_store_set_string; - iface->clear_datum = psppire_data_store_clear_datum; - iface->is_editable = NULL; - iface->is_visible = NULL; - iface->get_foreground = NULL; - iface->get_background = NULL; - iface->get_font_desc = psppire_data_store_get_font_desc; - iface->get_cell_border = NULL; + return psppire_dict_get_value_cnt (store->dict); } -static -gboolean always_true() +const struct caseproto * +psppire_data_store_get_proto (const PsppireDataStore *store) { - return TRUE; + return psppire_dict_get_proto (store->dict); } - - static void -delete_cases_callback(GtkWidget *w, gint first, gint n_cases, gpointer data) +psppire_data_store_init (PsppireDataStore *data_store) { - PsppireDataStore *store ; - - g_return_if_fail (data); - - store = PSPPIRE_DATA_STORE(data); - - g_assert(first >= 0); - - g_sheet_model_rows_deleted (G_SHEET_MODEL(store), first, n_cases); + data_store->dict = NULL; + data_store->datasheet = NULL; + data_store->dispose_has_run = FALSE; } - +/* + A callback which occurs after a variable has been deleted. + */ static void -insert_case_callback(GtkWidget *w, gint casenum, gpointer data) +delete_variable_callback (GObject *obj, const struct variable *var UNUSED, + gint dict_index, gint case_index, + gpointer data) { - PsppireDataStore *store ; - g_return_if_fail (data); + PsppireDataStore *store = PSPPIRE_DATA_STORE (data); - store = PSPPIRE_DATA_STORE(data); - - g_sheet_model_range_changed (G_SHEET_MODEL(store), - casenum, -1, - psppire_case_array_get_n_cases(store->cases), - -1); + g_return_if_fail (store->datasheet); + + datasheet_delete_columns (store->datasheet, case_index, 1); + datasheet_insert_column (store->datasheet, NULL, -1, case_index); } +struct resize_datum_aux + { + const struct dictionary *dict; + const struct variable *new_variable; + const struct variable *old_variable; + }; static void -changed_case_callback(GtkWidget *w, gint casenum, gpointer data) +resize_datum (const union value *old, union value *new, const void *aux_) { - PsppireDataStore *store ; - g_return_if_fail (data); - - store = PSPPIRE_DATA_STORE(data); - - g_sheet_model_range_changed (G_SHEET_MODEL(store), - casenum, -1, - casenum, -1); - + const struct resize_datum_aux *aux = aux_; + int new_width = var_get_width (aux->new_variable); + const char *enc = dict_get_encoding (aux->dict); + const struct fmt_spec *newfmt = var_get_print_format (aux->new_variable); + char *s = data_out (old, enc, var_get_print_format (aux->old_variable)); + enum fmt_type type = (fmt_usable_for_input (newfmt->type) + ? newfmt->type + : FMT_DOLLAR); + free (data_in (ss_cstr (s), enc, type, new, new_width, enc)); + free (s); } - static void -delete_variables_callback(GtkWidget *w, gint var_num, gint n_vars, gpointer data) +variable_changed_callback (GObject *obj, gint var_num, guint what, const struct variable *oldvar, + gpointer data) { - PsppireDataStore *store ; - - g_return_if_fail (data); + PsppireDataStore *store = PSPPIRE_DATA_STORE (data); + struct variable *variable = psppire_dict_get_variable (store->dict, var_num); - store = PSPPIRE_DATA_STORE(data); - - g_sheet_column_columns_deleted(G_SHEET_COLUMN(store), - var_num, n_vars); + if (what & VAR_TRAIT_WIDTH) + { + int posn = var_get_case_index (variable); + struct resize_datum_aux aux; + aux.old_variable = oldvar; + aux.new_variable = variable; + aux.dict = store->dict->dict; + datasheet_resize_column (store->datasheet, posn, var_get_width (variable), + resize_datum, &aux); + } } - static void -insert_variable_callback(GtkWidget *w, gint var_num, gpointer data) +insert_variable_callback (GObject *obj, gint var_num, gpointer data) { + struct variable *variable; PsppireDataStore *store; + gint posn; g_return_if_fail (data); - store = PSPPIRE_DATA_STORE(data); - - /* - g_sheet_model_range_changed (G_SHEET_MODEL(store), - casenum, -1, - psppire_case_array_get_n_cases(store->cases), - -1); - */ - - psppire_case_array_resize(store->cases, - dict_get_next_value_idx (store->dict->dict)); + store = PSPPIRE_DATA_STORE (data); + variable = psppire_dict_get_variable (store->dict, var_num); + posn = var_get_case_index (variable); + psppire_data_store_insert_value (store, var_get_width (variable), posn); } - - - /** * psppire_data_store_new: * @dict: The dictionary for this data_store. @@ -257,32 +276,42 @@ insert_variable_callback(GtkWidget *w, gint var_num, gpointer data) * Return value: a new #PsppireDataStore **/ PsppireDataStore * -psppire_data_store_new (PsppireDict *dict, PsppireCaseArray *cases) +psppire_data_store_new (PsppireDict *dict) { PsppireDataStore *retval; - retval = g_object_new (GTK_TYPE_DATA_STORE, NULL); + retval = g_object_new (PSPPIRE_TYPE_DATA_STORE, NULL); - retval->cases = cases; - g_signal_connect(cases, "cases-deleted", G_CALLBACK(delete_cases_callback), - retval); - - g_signal_connect(cases, "case-inserted", G_CALLBACK(insert_case_callback), - retval); + psppire_data_store_set_dictionary (retval, dict); + return retval; +} - g_signal_connect(cases, "case-changed", G_CALLBACK(changed_case_callback), - retval); +void +psppire_data_store_set_reader (PsppireDataStore *ds, + struct casereader *reader) +{ + gint i; + if ( ds->datasheet) + datasheet_destroy (ds->datasheet); - psppire_data_store_set_dictionary(retval, dict); + ds->datasheet = datasheet_create (reader); + if ( ds->dict ) + for (i = 0 ; i < n_dict_signals; ++i ) + { + if ( ds->dict_handler_id [i] > 0) + { + g_signal_handler_unblock (ds->dict, + ds->dict_handler_id[i]); + } + } - return retval; + g_signal_emit (ds, signals[BACKEND_CHANGED], 0); } - /** * psppire_data_store_replace_set_dictionary: * @data_store: The variable store @@ -292,400 +321,407 @@ psppire_data_store_new (PsppireDict *dict, PsppireCaseArray *cases) * destroyed. **/ void -psppire_data_store_set_dictionary(PsppireDataStore *data_store, PsppireDict *dict) +psppire_data_store_set_dictionary (PsppireDataStore *data_store, PsppireDict *dict) { -#if 0 - if ( data_store->dict ) g_object_unref(data_store->dict); -#endif + int i; + + /* Disconnect any existing handlers */ + if ( data_store->dict ) + for (i = 0 ; i < n_dict_signals; ++i ) + { + g_signal_handler_disconnect (data_store->dict, + data_store->dict_handler_id[i]); + } data_store->dict = dict; - psppire_case_array_resize(data_store->cases, - dict_get_next_value_idx (data_store->dict->dict)); + if ( dict != NULL) + { + + data_store->dict_handler_id [VARIABLE_INSERTED] = + g_signal_connect (dict, "variable-inserted", + G_CALLBACK (insert_variable_callback), + data_store); + data_store->dict_handler_id [VARIABLE_DELETED] = + g_signal_connect (dict, "variable-deleted", + G_CALLBACK (delete_variable_callback), + data_store); - g_signal_connect(dict, "variable-inserted", - G_CALLBACK(insert_variable_callback), - data_store); + data_store->dict_handler_id [VARIABLE_CHANGED] = + g_signal_connect (dict, "variable-changed", + G_CALLBACK (variable_changed_callback), + data_store); + } - g_signal_connect(dict, "variables-deleted", - G_CALLBACK(delete_variables_callback), - data_store); /* The entire model has changed */ - g_sheet_model_range_changed (G_SHEET_MODEL(data_store), -1, -1, -1, -1); + + if ( data_store->dict ) + for (i = 0 ; i < n_dict_signals; ++i ) + { + if ( data_store->dict_handler_id [i] > 0) + { + g_signal_handler_block (data_store->dict, + data_store->dict_handler_id[i]); + } + } } static void psppire_data_store_finalize (GObject *object) { + PsppireDataStore *ds = PSPPIRE_DATA_STORE (object); + + if (ds->datasheet) + { + datasheet_destroy (ds->datasheet); + ds->datasheet = NULL; + } /* must chain up */ (* parent_class->finalize) (object); } -static const gchar *const -psppire_data_store_get_string(GSheetModel *model, gint row, gint column) +static void +psppire_data_store_dispose (GObject *object) { - const struct fmt_spec *fp ; - const struct PsppireVariable *pv ; - const union value *v ; - static gchar s[255]; - PsppireDataStore *store = PSPPIRE_DATA_STORE(model); + PsppireDataStore *ds = PSPPIRE_DATA_STORE (object); - g_return_val_if_fail(store->dict, NULL); - g_return_val_if_fail(store->cases, NULL); + if (ds->dispose_has_run) + return; - if (column >= psppire_dict_get_var_cnt(store->dict)) - return NULL; + psppire_data_store_set_dictionary (ds, NULL); - if ( row >= psppire_case_array_get_n_cases(store->cases)) - return NULL; + /* must chain up */ + (* parent_class->dispose) (object); - pv = psppire_dict_get_variable(store->dict, column); + ds->dispose_has_run = TRUE; +} - v = psppire_case_array_get_value(store->cases, row, - psppire_variable_get_index(pv)); - if ( store->show_labels) - { - const struct val_labs * vl = psppire_variable_get_value_labels(pv); - const gchar *label; - if ( (label = val_labs_find(vl, *v)) ) - { - return label; - } - } - - fp = psppire_variable_get_write_spec(pv); +/* Insert a blank case before POSN */ +gboolean +psppire_data_store_insert_new_case (PsppireDataStore *ds, casenumber posn) +{ + gboolean result; + const struct caseproto *proto; + struct ccase *cc; + g_return_val_if_fail (ds, FALSE); - if ( psppire_variable_get_type(pv) == NUMERIC ) - { - /* Converts binary value V into printable form in the exactly - FP->W character in buffer S according to format specification - FP. No null terminator is appended to the buffer. */ - data_out (s, fp, v); - s[fp->w] = '\0'; - } - else - { - const gint len = psppire_variable_get_width(pv); - memcpy(s, v->s, len); - s[len] = '\0'; - } + proto = datasheet_get_proto (ds->datasheet); + g_return_val_if_fail (caseproto_get_n_widths (proto) > 0, FALSE); + g_return_val_if_fail (posn <= psppire_data_store_get_case_count (ds), FALSE); - { - static gchar buf[255]; - GError *err = NULL; - gchar *text = g_locale_to_utf8(s, fp->w, 0, 0, &err); - if ( !err ) - { - g_snprintf(buf, 255, text); - g_free(text); - } - else - { - g_warning("Cannot convert string \"%s\" to utf-8: %s\n", s, err->message); - g_error_free(err); - return NULL; - } + cc = case_create (proto); + case_set_missing (cc); - return buf ; - } -} + result = psppire_data_store_insert_case (ds, cc, posn); + case_unref (cc); -static gboolean -set_null_string_value(union value *val, gpointer data) -{ - strcpy(val->s, ""); - return TRUE; + return result; } -static gboolean -set_sysmis_value(union value *val, gpointer data) +gchar * +psppire_data_store_get_string (PsppireDataStore *store, + glong row, const struct variable *var, + bool use_value_label) { - val->f = SYSMIS; - return TRUE; -} + gchar *string; + union value v; + int width; + g_return_val_if_fail (store != NULL, NULL); + g_return_val_if_fail (store->datasheet != NULL, NULL); + g_return_val_if_fail (var != NULL, NULL); -static gboolean -psppire_data_store_clear_datum(GSheetModel *model, - gint row, gint col) + if (row < 0 || row >= datasheet_get_n_rows (store->datasheet)) + return NULL; -{ - PsppireDataStore *store = PSPPIRE_DATA_STORE(model); + width = var_get_width (var); + value_init (&v, width); + datasheet_get_value (store->datasheet, row, var_get_case_index (var), &v); - const struct PsppireVariable *pv = psppire_dict_get_variable(store->dict, col); + string = NULL; + if (use_value_label) + { + const char *label = var_lookup_value_label (var, &v); + if (label != NULL) + string = g_strdup (label); + } + if (string == NULL) + string = value_to_text (v, var); - const gint index = psppire_variable_get_index(pv) ; + value_destroy (&v, width); - if ( psppire_variable_get_type(pv) == NUMERIC) - psppire_case_array_set_value(store->cases, row, index, set_sysmis_value,0); - else - psppire_case_array_set_value(store->cases, row, index, set_null_string_value,0); - return TRUE; + return string; } -static gboolean -fillit(union value *val, gpointer data) +/* Attempts to update that part of the variable store which corresponds to VAR + within ROW with the value TEXT. + + If USE_VALUE_LABEL is true, and TEXT is a value label for the column's + variable, then stores the value from that value label instead of the literal + TEXT. + + Returns true if anything was updated, false otherwise. */ +gboolean +psppire_data_store_set_string (PsppireDataStore *store, + const gchar *text, + glong row, const struct variable *var, + gboolean use_value_label) { - struct data_in *d_in = data; + gint case_index; + glong n_cases; + gboolean ok; - d_in->v = val; + n_cases = psppire_data_store_get_case_count (store); + if (row > n_cases) + return FALSE; + if (row == n_cases) + psppire_data_store_insert_new_case (store, row); - if ( ! data_in(d_in) ) + case_index = var_get_case_index (var); + if (use_value_label) { - g_warning("Cant encode string\n"); - return FALSE; + const struct val_labs *vls = var_get_value_labels (var); + const union value *value = vls ? val_labs_find_value (vls, text) : NULL; + if (value) + ok = datasheet_put_value (store->datasheet, row, case_index, value); + else + ok = FALSE; } + else + ok = psppire_data_store_data_in (store, row, case_index, ss_cstr (text), + var_get_print_format (var)); - return TRUE; + if (ok) + g_signal_emit (store, signals [CASE_CHANGED], 0, row); + return ok; } -/* Attempts to update that part of the variable store which corresponds - to ROW, COL with the value TEXT. - Returns true if anything was updated, false otherwise. -*/ -static gboolean -psppire_data_store_set_string(GSheetModel *model, - const gchar *text, gint row, gint col) -{ - gint r; - PsppireDataStore *store = PSPPIRE_DATA_STORE(model); - const struct PsppireVariable *pv = psppire_dict_get_variable(store->dict, col); +void +psppire_data_store_clear (PsppireDataStore *ds) +{ + datasheet_destroy (ds->datasheet); + ds->datasheet = NULL; - for(r = psppire_case_array_get_n_cases(store->cases) ; r <= row ; ++r ) - { - gint c; - psppire_case_array_insert_case(store->cases, r); + psppire_dict_clear (ds->dict); - for (c = 0 ; c < psppire_dict_get_var_cnt(store->dict); ++c ) - psppire_data_store_clear_datum(model, r, c); - } + g_signal_emit (ds, signals [CASES_DELETED], 0, 0, -1); +} - { - const gint index = psppire_variable_get_index(pv); - struct data_in d_in; - d_in.s = text; - d_in.e = text + strlen(text); - d_in.v = 0; - d_in.f1 = d_in.f2 = 0; - d_in.format = * psppire_variable_get_write_spec(pv); - d_in.flags = 0; - psppire_case_array_set_value(store->cases, row, index, fillit, &d_in); - } +/* Return a casereader made from this datastore */ +struct casereader * +psppire_data_store_get_reader (PsppireDataStore *ds) +{ + int i; + struct casereader *reader ; - return TRUE; -} + if ( ds->dict ) + for (i = 0 ; i < n_dict_signals; ++i ) + { + g_signal_handler_block (ds->dict, + ds->dict_handler_id[i]); + } + reader = datasheet_make_reader (ds->datasheet); -void -psppire_data_store_set_font(PsppireDataStore *store, PangoFontDescription *fd) -{ - g_return_if_fail (store); - g_return_if_fail (PSPPIRE_IS_DATA_STORE (store)); + /* We must not reference this again */ + ds->datasheet = NULL; - store->font_desc = fd; - g_sheet_model_range_changed (G_SHEET_MODEL(store), - -1, -1, -1, -1); + return reader; } -void -psppire_data_store_show_labels(PsppireDataStore *store, gboolean show_labels) -{ - g_return_if_fail (store); - g_return_if_fail (PSPPIRE_IS_DATA_STORE (store)); - store->show_labels = show_labels; +/* Column related funcs */ - g_sheet_model_range_changed (G_SHEET_MODEL(store), - -1, -1, -1, -1); -} +static const gchar null_var_name[]=N_("var"); -static gboolean -write_case(const struct ccase *cc, - gpointer aux) -{ - struct sfm_writer *writer = aux; + - if ( ! sfm_write_case(writer, cc) ) - return FALSE; +/* Returns the CASENUMth case, or a null pointer on failure. + */ +struct ccase * +psppire_data_store_get_case (const PsppireDataStore *ds, + casenumber casenum) +{ + g_return_val_if_fail (ds, FALSE); + g_return_val_if_fail (ds->datasheet, FALSE); - return TRUE; + return datasheet_get_row (ds->datasheet, casenum); } -void -psppire_data_store_create_system_file(PsppireDataStore *store, - struct file_handle *handle) -{ - const struct sfm_write_options wo = { - true, /* writeable */ - false, /* dont compress */ - 3 /* version */ - }; - struct sfm_writer *writer ; +gboolean +psppire_data_store_delete_cases (PsppireDataStore *ds, casenumber first, + casenumber n_cases) +{ + g_return_val_if_fail (ds, FALSE); + g_return_val_if_fail (ds->datasheet, FALSE); - g_assert(handle); + g_return_val_if_fail (first + n_cases <= + psppire_data_store_get_case_count (ds), FALSE); - writer = sfm_open_writer(handle, store->dict->dict, wo); - if ( ! writer) - return; + datasheet_delete_rows (ds->datasheet, first, n_cases); - psppire_case_array_iterate_case(store->cases, write_case, writer); + g_signal_emit (ds, signals [CASES_DELETED], 0, first, n_cases); - sfm_close_writer(writer); + return TRUE; } -/* Column related funcs */ - -static gint -geometry_get_column_count(const GSheetColumn *geom) -{ - PsppireDataStore *ds = PSPPIRE_DATA_STORE(geom); - - return max(MIN_COLUMNS, psppire_dict_get_var_cnt(ds->dict)); -} - -/* Return the width that an 'M' character would occupy when typeset at - row, col */ -static guint -M_width(GtkSheet *sheet, gint row, gint col) +/* Insert case CC into the case file before POSN */ +static gboolean +psppire_data_store_insert_case (PsppireDataStore *ds, + struct ccase *cc, + casenumber posn) { - GtkSheetCellAttr attributes; - PangoRectangle rect; - /* FIXME: make this a member of the data store */ - static PangoLayout *layout = 0; + bool result ; + g_return_val_if_fail (ds, FALSE); + g_return_val_if_fail (ds->datasheet, FALSE); - gtk_sheet_get_attributes(sheet, row, col, &attributes); + cc = case_ref (cc); + result = datasheet_insert_rows (ds->datasheet, posn, &cc, 1); - if (! layout ) - layout = gtk_widget_create_pango_layout (GTK_WIDGET(sheet), "M"); - - pango_layout_set_font_description (layout, - attributes.font_desc); - - pango_layout_get_extents (layout, NULL, &rect); - -#if 0 - g_object_unref(G_OBJECT(layout)); -#endif + if ( result ) + g_signal_emit (ds, signals [CASE_INSERTED], 0, posn); + else + g_warning ("Cannot insert case at position %ld\n", posn); - return PANGO_PIXELS(rect.width); + return result; } -/* Return the number of pixels corresponding to a column of - WIDTH characters */ -static inline guint -columnWidthToPixels(GtkSheet *sheet, gint column, guint width) +/* Set the value of VAR in case CASENUM to V. + V must be the correct width for IDX. + Returns true if successful, false on I/O error. */ +gboolean +psppire_data_store_set_value (PsppireDataStore *ds, casenumber casenum, + const struct variable *var, const union value *v) { - return (M_width(sheet, 0, column) * width); -} + glong n_cases; + bool ok; + g_return_val_if_fail (ds, FALSE); + g_return_val_if_fail (ds->datasheet, FALSE); -static gint -geometry_get_width(const GSheetColumn *geom, gint unit, GtkSheet *sheet) -{ - const struct PsppireVariable *pv ; - PsppireDataStore *ds = PSPPIRE_DATA_STORE(geom); + n_cases = psppire_data_store_get_case_count (ds); + if ( casenum > n_cases) + return FALSE; - if ( unit >= psppire_dict_get_var_cnt(ds->dict) ) - return 75; + if (casenum == n_cases) + psppire_data_store_insert_new_case (ds, casenum); - /* FIXME: We can optimise this by caching the widths until they're resized */ - pv = psppire_dict_get_variable(ds->dict, unit); + ok = datasheet_put_value (ds->datasheet, casenum, var_get_case_index (var), + v); + if (ok) + g_signal_emit (ds, signals [CASE_CHANGED], 0, casenum); - return columnWidthToPixels(sheet, unit, psppire_variable_get_columns(pv)); + return ok; } -static void -geometry_set_width(GSheetColumn *geom, gint unit, gint width, GtkSheet *sheet) +/* Set the IDXth value of case C using D_IN */ +static gboolean +psppire_data_store_data_in (PsppireDataStore *ds, casenumber casenum, gint idx, + struct substring input, const struct fmt_spec *fmt) { - PsppireDataStore *ds = PSPPIRE_DATA_STORE(geom); + union value value; + int width; + bool ok; - struct PsppireVariable *pv = psppire_dict_get_variable(ds->dict, unit); - - psppire_variable_set_columns(pv, width / M_width(sheet, 1, unit)); -} + PsppireDict *dict; + g_return_val_if_fail (ds, FALSE); + g_return_val_if_fail (ds->datasheet, FALSE); + g_return_val_if_fail (idx < datasheet_get_n_columns (ds->datasheet), FALSE); -static GtkJustification -geometry_get_justification(const GSheetColumn *geom, gint unit) -{ - PsppireDataStore *ds = PSPPIRE_DATA_STORE(geom); - const struct PsppireVariable *pv ; + dict = ds->dict; + width = fmt_var_width (fmt); + g_return_val_if_fail (caseproto_get_width ( + datasheet_get_proto (ds->datasheet), idx) == width, + FALSE); + value_init (&value, width); + ok = (datasheet_get_value (ds->datasheet, casenum, idx, &value) + && data_in_msg (input, UTF8, fmt->type, &value, width, + dict_get_encoding (dict->dict)) + && datasheet_put_value (ds->datasheet, casenum, idx, &value)); + value_destroy (&value, width); - if ( unit >= psppire_dict_get_var_cnt(ds->dict) ) - return GTK_JUSTIFY_LEFT; + return ok; +} - pv = psppire_dict_get_variable(ds->dict, unit); +/* Resize the cases in the casefile, by inserting a value of the + given WIDTH into every one of them at the position immediately + preceding WHERE. +*/ +static gboolean +psppire_data_store_insert_value (PsppireDataStore *ds, + gint width, gint where) +{ + union value value; - /* Kludge: Happily GtkJustification is defined similarly - to enum alignment from pspp/variable.h */ - return psppire_variable_get_alignment(pv); -} + g_return_val_if_fail (ds, FALSE); + g_assert (width >= 0); -static const gchar null_var_name[]=_("var"); - -static const gchar * -geometry_get_button_label(const GSheetColumn *geom, gint unit) -{ - struct PsppireVariable *pv ; - PsppireDataStore *ds = PSPPIRE_DATA_STORE(geom); + if ( ! ds->datasheet ) + ds->datasheet = datasheet_create (NULL); - if ( unit >= psppire_dict_get_var_cnt(ds->dict) ) - return null_var_name; + value_init (&value, width); + value_set_missing (&value, width); - pv = psppire_dict_get_variable(ds->dict, unit); + datasheet_insert_column (ds->datasheet, &value, width, where); + value_destroy (&value, width); - return psppire_variable_get_name(pv); + return TRUE; } - -static gboolean -geometry_get_sensitivity(const GSheetColumn *geom, gint unit) +gboolean +psppire_data_store_filtered (PsppireDataStore *ds, + glong row) { - PsppireDataStore *ds = PSPPIRE_DATA_STORE(geom); + union value val; + const struct dictionary *dict; + const struct variable *filter; - return (unit < psppire_dict_get_var_cnt(ds->dict)); -} + if ( row < 0 || row >= datasheet_get_n_rows (ds->datasheet)) + return FALSE; + dict = ds->dict->dict; + g_return_val_if_fail (dict, FALSE); + filter = dict_get_filter (dict); + if ( ! filter) + return FALSE; -static void -psppire_data_store_sheet_column_init (GSheetColumnIface *iface) -{ - iface->get_column_count = geometry_get_column_count; - iface->get_width = geometry_get_width; - iface->set_width = geometry_set_width; - iface->get_visibility = always_true; - iface->get_sensitivity = geometry_get_sensitivity; - iface->get_justification = geometry_get_justification; - - iface->get_button_label = geometry_get_button_label; + g_return_val_if_fail (var_is_numeric (filter), FALSE); + value_init (&val, 0); + if ( ! datasheet_get_value (ds->datasheet, row, + var_get_case_index (filter), + &val) ) + return FALSE; + + return (val.f == 0.0); }