+++ /dev/null
-/* PSPPIRE - a graphical user interface for PSPP.
- Copyright (C) 2006 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 <http://www.gnu.org/licenses/>. */
-
-#include <config.h>
-#include <string.h>
-#include <stdlib.h>
-
-#include "psppire-case-file.h"
-
-#include <gtksheet/psppire-marshal.h>
-
-#include <data/format.h>
-#include <data/case.h>
-#include <data/data-in.h>
-#include <data/datasheet.h>
-#include <data/casereader.h>
-#include <math/sort.h>
-#include <libpspp/misc.h>
-
-#include "xalloc.h"
-#include "xmalloca.h"
-
-/* --- prototypes --- */
-static void psppire_case_file_class_init (PsppireCaseFileClass *class);
-static void psppire_case_file_init (PsppireCaseFile *case_file);
-static void psppire_case_file_finalize (GObject *object);
-
-
-/* --- variables --- */
-static GObjectClass *parent_class = NULL;
-
-enum {CASE_CHANGED,
- CASE_INSERTED,
- CASES_DELETED,
- n_SIGNALS};
-
-static guint signals [n_SIGNALS];
-
-
-/* --- functions --- */
-/**
- * psppire_case_file_get_type:
- * @returns: the type ID for accelerator groups.
- */
-GType
-psppire_case_file_get_type (void)
-{
- static GType object_type = 0;
-
- if (!object_type)
- {
- static const GTypeInfo object_info = {
- sizeof (PsppireCaseFileClass),
- (GBaseInitFunc) NULL,
- (GBaseFinalizeFunc) NULL,
- (GClassInitFunc) psppire_case_file_class_init,
- NULL, /* class_finalize */
- NULL, /* class_data */
- sizeof (PsppireCaseFile),
- 0, /* n_preallocs */
- (GInstanceInitFunc) psppire_case_file_init,
- };
-
- object_type = g_type_register_static (G_TYPE_OBJECT, "PsppireCaseFile",
- &object_info, 0);
- }
-
- return object_type;
-}
-
-/* Properties */
-enum
-{
- PROP_0,
- PROP_DATASHEET,
- PROP_READER
-};
-
-
-
-
-static void
-psppire_case_file_set_property (GObject *object,
- guint prop_id,
- const GValue *value,
- GParamSpec *pspec)
-
-{
- PsppireCaseFile *cf = PSPPIRE_CASE_FILE (object);
-
- switch (prop_id)
- {
- case PROP_READER:
- cf->datasheet = datasheet_create (g_value_get_pointer (value));
- cf->accessible = TRUE;
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- };
-}
-
-static void
-psppire_case_file_get_property (GObject *object,
- guint prop_id,
- GValue *value,
- GParamSpec *pspec)
-{
- PsppireCaseFile *cf = PSPPIRE_CASE_FILE (object);
-
- switch (prop_id)
- {
- case PROP_DATASHEET:
- g_value_set_pointer (value, cf->datasheet);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- };
-}
-
-
-static void
-psppire_case_file_class_init (PsppireCaseFileClass *class)
-{
- GObjectClass *object_class = G_OBJECT_CLASS (class);
- GParamSpec *datasheet_spec ;
- GParamSpec *reader_spec ;
-
- parent_class = g_type_class_peek_parent (class);
-
- object_class->finalize = psppire_case_file_finalize;
-
- datasheet_spec =
- g_param_spec_pointer ("datasheet",
- "Datasheet",
- "A pointer to the datasheet belonging to this object",
- G_PARAM_READABLE );
- reader_spec =
- g_param_spec_pointer ("casereader",
- "CaseReader",
- "A pointer to the case reader from which this object is constructed",
- G_PARAM_CONSTRUCT_ONLY | G_PARAM_WRITABLE );
-
- object_class->set_property = psppire_case_file_set_property;
- object_class->get_property = psppire_case_file_get_property;
-
- g_object_class_install_property (object_class,
- PROP_DATASHEET,
- datasheet_spec);
-
- g_object_class_install_property (object_class,
- PROP_READER,
- reader_spec);
-
- 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 [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 [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_case_file_finalize (GObject *object)
-{
- PsppireCaseFile *cf = PSPPIRE_CASE_FILE (object);
-
- if ( cf->accessible)
- datasheet_destroy (cf->datasheet);
-
- G_OBJECT_CLASS (parent_class)->finalize (object);
-}
-
-static void
-psppire_case_file_init (PsppireCaseFile *cf)
-{
- cf->datasheet = NULL;
- cf->accessible = FALSE;
-}
-
-
-/**
- * psppire_case_file_new:
- * @returns: a new #PsppireCaseFile object
- *
- * Creates a new #PsppireCaseFile.
- */
-PsppireCaseFile*
-psppire_case_file_new (struct casereader *reader)
-{
- return g_object_new (G_TYPE_PSPPIRE_CASE_FILE,
- "casereader", reader,
- NULL);
-}
-
-
-gboolean
-psppire_case_file_delete_cases (PsppireCaseFile *cf, casenumber n_cases, casenumber first)
-{
- g_return_val_if_fail (cf, FALSE);
- g_return_val_if_fail (cf->datasheet, FALSE);
- g_return_val_if_fail (cf->accessible, FALSE);
-
- g_return_val_if_fail (first + n_cases <=
- psppire_case_file_get_case_count (cf), FALSE);
-
- datasheet_delete_rows (cf->datasheet, first, n_cases);
-
- g_signal_emit (cf, signals [CASES_DELETED], 0, first, n_cases);
-
- return TRUE;
-}
-
-/* Insert case CC into the case file before POSN */
-gboolean
-psppire_case_file_insert_case (PsppireCaseFile *cf,
- struct ccase *cc,
- casenumber posn)
-{
- struct ccase tmp;
- bool result ;
-
- g_return_val_if_fail (cf, FALSE);
- g_return_val_if_fail (cf->datasheet, FALSE);
- g_return_val_if_fail (cf->accessible, FALSE);
-
- case_clone (&tmp, cc);
- result = datasheet_insert_rows (cf->datasheet, posn, &tmp, 1);
-
- if ( result )
- g_signal_emit (cf, signals [CASE_INSERTED], 0, posn);
- else
- g_warning ("Cannot insert case at position %ld\n", posn);
-
- return result;
-}
-
-
-casenumber
-psppire_case_file_get_case_count (const PsppireCaseFile *cf)
-{
- g_return_val_if_fail (cf, FALSE);
- g_return_val_if_fail (cf->accessible, FALSE);
-
- if ( ! cf->datasheet)
- return 0;
-
- return datasheet_get_row_cnt (cf->datasheet);
-}
-
-/* Copies the IDXth value from case CASENUM into VALUE.
- If VALUE is null, then memory is allocated is allocated with
- malloc. Returns the value if successful, NULL on failure. */
-union value *
-psppire_case_file_get_value (const PsppireCaseFile *cf,
- casenumber casenum, size_t idx,
- union value *value, int width)
-{
- bool allocated;
-
- g_return_val_if_fail (cf, false);
- g_return_val_if_fail (cf->datasheet, false);
-
- g_return_val_if_fail (idx < datasheet_get_column_cnt (cf->datasheet), false);
-
- if (value == NULL)
- {
- value = xnmalloc (value_cnt_from_width (width), sizeof *value);
- allocated = true;
- }
- else
- allocated = false;
- if (!datasheet_get_value (cf->datasheet, casenum, idx, value, width))
- {
- if (allocated)
- free (value);
- value = NULL;
- }
- return value;
-}
-
-void
-psppire_case_file_clear (PsppireCaseFile *cf)
-{
- datasheet_destroy (cf->datasheet);
- cf->datasheet = NULL;
- g_signal_emit (cf, signals [CASES_DELETED], 0, 0, -1);
-}
-
-/* Set the IDXth value of case C to V.
- Returns true if successful, false on I/O error. */
-gboolean
-psppire_case_file_set_value (PsppireCaseFile *cf, casenumber casenum, gint idx,
- union value *v, gint width)
-{
- bool ok;
-
- g_return_val_if_fail (cf, FALSE);
- g_return_val_if_fail (cf->datasheet, FALSE);
-
- g_return_val_if_fail (idx < datasheet_get_column_cnt (cf->datasheet), FALSE);
-
- ok = datasheet_put_value (cf->datasheet, casenum, idx, v, width);
- if (ok)
- g_signal_emit (cf, signals [CASE_CHANGED], 0, casenum);
- return ok;
-}
-
-
-
-/* Set the IDXth value of case C using D_IN */
-gboolean
-psppire_case_file_data_in (PsppireCaseFile *cf, casenumber casenum, gint idx,
- struct substring input, const struct fmt_spec *fmt)
-{
- union value *value = NULL;
- int width;
- bool ok;
-
- g_return_val_if_fail (cf, FALSE);
- g_return_val_if_fail (cf->datasheet, FALSE);
-
- g_return_val_if_fail (idx < datasheet_get_column_cnt (cf->datasheet), FALSE);
-
- width = fmt_var_width (fmt);
- value = xmalloca (value_cnt_from_width (width) * sizeof *value);
- ok = (datasheet_get_value (cf->datasheet, casenum, idx, value, width)
- && data_in (input, LEGACY_NATIVE, fmt->type, 0, 0, 0, value, width)
- && datasheet_put_value (cf->datasheet, casenum, idx, value, width));
-
- if (ok)
- g_signal_emit (cf, signals [CASE_CHANGED], 0, casenum);
-
- freea (value);
-
- return TRUE;
-}
-
-
-void
-psppire_case_file_sort (PsppireCaseFile *cf, struct case_ordering *ordering)
-{
- struct casereader *sorted_data;
- gint c;
-
- sorted_data = sort_execute (datasheet_make_reader (cf->datasheet), ordering);
- cf->datasheet = datasheet_create (sorted_data);
-
- /* FIXME: Need to have a signal to change a range of cases, instead of
- calling a signal many times */
- for ( c = 0 ; c < datasheet_get_row_cnt (cf->datasheet) ; ++c )
- g_signal_emit (cf, signals [CASE_CHANGED], 0, c);
-}
-
-
-/* Resize the cases in the casefile, by inserting N_VALUES into every
- one of them at the position immediately preceeding WHERE.
-*/
-gboolean
-psppire_case_file_insert_values (PsppireCaseFile *cf,
- gint n_values, gint where)
-{
- g_return_val_if_fail (cf, FALSE);
- g_return_val_if_fail (cf->accessible, FALSE);
-
- if ( n_values == 0 )
- return FALSE;
-
- g_assert (n_values > 0);
-
- if ( ! cf->datasheet )
- cf->datasheet = datasheet_create (NULL);
-
- {
- union value *values = xcalloc (n_values, sizeof *values);
- datasheet_insert_columns (cf->datasheet, values, n_values, where);
- free (values);
- }
-
- return TRUE;
-}
-
-
-/* Fills C with the CASENUMth case.
- Returns true on success, false otherwise.
- */
-gboolean
-psppire_case_file_get_case (const PsppireCaseFile *cf, casenumber casenum,
- struct ccase *c)
-{
- g_return_val_if_fail (cf, FALSE);
- g_return_val_if_fail (cf->datasheet, FALSE);
-
- return datasheet_get_row (cf->datasheet, casenum, c);
-}
-
-
-
-struct casereader *
-psppire_case_file_make_reader (PsppireCaseFile *cf)
-{
- struct casereader *r = datasheet_make_reader (cf->datasheet);
- cf->accessible = FALSE;
- return r;
-}
-
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