X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fui%2Fgui%2Fpsppire-case-file.c;h=8b194528089d95f3642913bd3709e8f5ec2524ee;hb=d0371553a98cd169353bf6d211e375e5ffc3a3bd;hp=4c4bce8838ab739c46d769be0d0bf5f1fa15967c;hpb=4517b68e7248f22e7b7ed81f0d73179351a53047;p=pspp-builds.git

diff --git a/src/ui/gui/psppire-case-file.c b/src/ui/gui/psppire-case-file.c
index 4c4bce88..8b194528 100644
--- a/src/ui/gui/psppire-case-file.c
+++ b/src/ui/gui/psppire-case-file.c
@@ -1,39 +1,37 @@
-/*
-    PSPPIRE --- A Graphical User Interface for PSPP
-    Copyright (C) 2006  Free Software Foundation
+/* 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 2 of the License, or
-    (at your option) any later version.
+   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.
+   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, write to the Free Software
-    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-    02110-1301, USA. */
+   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-object.h"
 #include "psppire-case-file.h"
 
 #include <gtksheet/gtkextra-marshal.h>
 
 #include <data/case.h>
-#include <ui/flexifile.h>
-#include "flexifile-factory.h"
-#include <data/casefile.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);
@@ -48,7 +46,7 @@ enum  {CASE_CHANGED,
        CASES_DELETED,
        n_SIGNALS};
 
-static guint signal[n_SIGNALS];
+static guint signals [n_SIGNALS];
 
 
 /* --- functions --- */
@@ -75,7 +73,7 @@ psppire_case_file_get_type (void)
 	(GInstanceInitFunc) psppire_case_file_init,
       };
 
-      object_type = g_type_register_static (G_TYPE_PSPPIRE_OBJECT, "PsppireCaseFile",
+      object_type = g_type_register_static (G_TYPE_OBJECT, "PsppireCaseFile",
 					    &object_info, 0);
     }
 
@@ -92,8 +90,8 @@ psppire_case_file_class_init (PsppireCaseFileClass *class)
 
   object_class->finalize = psppire_case_file_finalize;
 
-  signal[CASE_CHANGED] =
-    g_signal_new ("case_changed",
+  signals [CASE_CHANGED] =
+    g_signal_new ("case-changed",
 		  G_TYPE_FROM_CLASS (class),
 		  G_SIGNAL_RUN_FIRST,
 		  0,
@@ -104,8 +102,8 @@ psppire_case_file_class_init (PsppireCaseFileClass *class)
 		  G_TYPE_INT);
 
 
-  signal[CASE_INSERTED] =
-    g_signal_new ("case_inserted",
+  signals [CASE_INSERTED] =
+    g_signal_new ("case-inserted",
 		  G_TYPE_FROM_CLASS (class),
 		  G_SIGNAL_RUN_FIRST,
 		  0,
@@ -116,8 +114,8 @@ psppire_case_file_class_init (PsppireCaseFileClass *class)
 		  G_TYPE_INT);
 
 
-  signal[CASES_DELETED] =
-    g_signal_new ("cases_deleted",
+  signals [CASES_DELETED] =
+    g_signal_new ("cases-deleted",
 		  G_TYPE_FROM_CLASS (class),
 		  G_SIGNAL_RUN_FIRST,
 		  0,
@@ -133,8 +131,8 @@ psppire_case_file_finalize (GObject *object)
 {
   PsppireCaseFile *cf = PSPPIRE_CASE_FILE (object);
 
-  if ( cf->flexifile)
-    casefile_destroy (cf->flexifile);
+  if ( cf->accessible)
+    datasheet_destroy (cf->datasheet);
 
   G_OBJECT_CLASS (parent_class)->finalize (object);
 }
@@ -142,7 +140,8 @@ psppire_case_file_finalize (GObject *object)
 static void
 psppire_case_file_init (PsppireCaseFile *cf)
 {
-  cf->flexifile = 0;
+  cf->datasheet = NULL;
+  cf->accessible = FALSE;
 }
 
 
@@ -153,232 +152,224 @@ psppire_case_file_init (PsppireCaseFile *cf)
  * Creates a new #PsppireCaseFile.
  */
 PsppireCaseFile*
-psppire_case_file_new (void)
+psppire_case_file_new (const struct casereader *reader)
 {
   PsppireCaseFile *cf = g_object_new (G_TYPE_PSPPIRE_CASE_FILE, NULL);
 
-  cf->flexifile = flexifile_create (0);
+  cf->datasheet = datasheet_create (casereader_clone (reader));
+  cf->accessible = TRUE;
 
   return cf;
 }
 
 
-void
-psppire_case_file_replace_flexifile (PsppireCaseFile *cf, struct flexifile *ff)
-{
-  cf->flexifile = (struct casefile *) ff;
-}
-
-
-
 gboolean
-psppire_case_file_delete_cases (PsppireCaseFile *cf, gint n_cases, gint first)
+psppire_case_file_delete_cases (PsppireCaseFile *cf, casenumber n_cases, casenumber first)
 {
-  int result;
-
   g_return_val_if_fail (cf, FALSE);
-  g_return_val_if_fail (cf->flexifile, FALSE);
+  g_return_val_if_fail (cf->datasheet, FALSE);
+  g_return_val_if_fail (cf->accessible, FALSE);
 
-  result =  flexifile_delete_cases (FLEXIFILE (cf->flexifile), n_cases,  first);
+  g_return_val_if_fail (first + n_cases <=
+			psppire_case_file_get_case_count (cf), FALSE);
 
-  g_signal_emit (cf, signal[CASES_DELETED], 0, n_cases, first);
+  datasheet_delete_rows (cf->datasheet, first, n_cases);
 
-  return result;
+  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,
-			      gint posn)
+			       struct ccase *cc,
+			       casenumber posn)
 {
+  struct ccase tmp;
   bool result ;
 
   g_return_val_if_fail (cf, FALSE);
-  g_return_val_if_fail (cf->flexifile, FALSE);
+  g_return_val_if_fail (cf->datasheet, FALSE);
+  g_return_val_if_fail (cf->accessible, FALSE);
 
-  result = flexifile_insert_case (FLEXIFILE (cf->flexifile), cc, posn);
+  case_clone (&tmp, cc);
+  result = datasheet_insert_rows (cf->datasheet, posn, &tmp, 1);
 
   if ( result )
-    g_signal_emit (cf, signal[CASE_INSERTED], 0, posn);
+    g_signal_emit (cf, signals [CASE_INSERTED], 0, posn);
   else
-    g_warning ("Cannot insert case at position %d\n", posn);
+    g_warning ("Cannot insert case at position %ld\n", posn);
 
   return result;
 }
 
 
-/* Append a case to the case file */
-gboolean
-psppire_case_file_append_case (PsppireCaseFile *cf,
-			      struct ccase *c)
-{
-  bool result ;
-  gint posn ;
-
-  g_return_val_if_fail (cf, FALSE);
-  g_return_val_if_fail (cf->flexifile, FALSE);
-
-  posn = casefile_get_case_cnt (cf->flexifile);
-
-  result = casefile_append (cf->flexifile, c);
-
-  g_signal_emit (cf, signal[CASE_INSERTED], 0, posn);
-
-  return result;
-}
-
-
-inline gint
+inline 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->flexifile)
+  if ( ! cf->datasheet)
     return 0;
 
-  return casefile_get_case_cnt (cf->flexifile);
+  return datasheet_get_row_cnt (cf->datasheet);
 }
 
-/* Return the IDXth value from case CASENUM.
-   The return value must not be freed or written to
- */
-const union value *
-psppire_case_file_get_value (const PsppireCaseFile *cf, gint casenum, gint idx)
+/* 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)
 {
-  const union value *v;
-  struct ccase c;
-
-  g_return_val_if_fail (cf, NULL);
-  g_return_val_if_fail (cf->flexifile, NULL);
+  bool allocated;
 
-  g_return_val_if_fail (idx < casefile_get_value_cnt (cf->flexifile), NULL);
+  g_return_val_if_fail (cf, false);
+  g_return_val_if_fail (cf->datasheet, false);
 
-  flexifile_get_case (FLEXIFILE (cf->flexifile), casenum, &c);
+  g_return_val_if_fail (idx < datasheet_get_column_cnt (cf->datasheet), false);
 
-  v = case_data_idx (&c, idx);
-  case_destroy (&c);
-
-  return v;
+  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)
 {
-  casefile_destroy (cf->flexifile);
-  cf->flexifile = 0;
-  g_signal_emit (cf, signal[CASES_DELETED], 0, 0, -1);
+  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 SYSMIS/EMPTY */
+/* 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, gint casenum, gint idx,
+psppire_case_file_set_value (PsppireCaseFile *cf, casenumber casenum, gint idx,
 			    union value *v, gint width)
 {
-  struct ccase cc ;
-  int bytes;
+  bool ok;
 
   g_return_val_if_fail (cf, FALSE);
-  g_return_val_if_fail (cf->flexifile, FALSE);
-
-  g_return_val_if_fail (idx < casefile_get_value_cnt (cf->flexifile), FALSE);
-
-  if ( ! flexifile_get_case (FLEXIFILE (cf->flexifile), casenum, &cc) )
-    return FALSE;
-
-  if ( width == 0 )
-    bytes = MAX_SHORT_STRING;
-  else
-    bytes = DIV_RND_UP (width, MAX_SHORT_STRING) * MAX_SHORT_STRING ;
+  g_return_val_if_fail (cf->datasheet, FALSE);
 
-  /* Cast away const in flagrant abuse of the casefile */
-  memcpy ((union value *)case_data_idx (&cc, idx), v, bytes);
+  g_return_val_if_fail (idx < datasheet_get_column_cnt (cf->datasheet), FALSE);
 
-  g_signal_emit (cf, signal[CASE_CHANGED], 0, casenum);
-
-  return TRUE;
+  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, gint casenum, gint idx,
+psppire_case_file_data_in (PsppireCaseFile *cf, casenumber casenum, gint idx,
                           struct substring input, const struct fmt_spec *fmt)
 {
-  struct ccase cc ;
+  union value *value;
+  int width;
+  bool ok;
 
   g_return_val_if_fail (cf, FALSE);
-  g_return_val_if_fail (cf->flexifile, FALSE);
+  g_return_val_if_fail (cf->datasheet, FALSE);
 
-  g_return_val_if_fail (idx < casefile_get_value_cnt (cf->flexifile), FALSE);
+  g_return_val_if_fail (idx < datasheet_get_column_cnt (cf->datasheet), FALSE);
 
-  if ( ! flexifile_get_case (FLEXIFILE (cf->flexifile), casenum, &cc) )
-    return 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, value, width)
+        && datasheet_put_value (cf->datasheet, casenum, idx, value, width));
 
-  /* Cast away const in flagrant abuse of the casefile */
-  if (!data_in (input, fmt->type, 0, 0,
-                (union value *) case_data_idx (&cc, idx), fmt_var_width (fmt)))
-    g_warning ("Cant set value\n");
+  if (ok)
+    g_signal_emit (cf, signals [CASE_CHANGED], 0, casenum);
 
-  g_signal_emit (cf, signal[CASE_CHANGED], 0, casenum);
+  freea (value);
 
   return TRUE;
 }
 
 
 void
-psppire_case_file_sort (PsppireCaseFile *cf, const struct sort_criteria *sc)
+psppire_case_file_sort (PsppireCaseFile *cf, struct case_ordering *ordering)
 {
+  struct casereader *sorted_data;
   gint c;
 
-  struct casereader *reader = casefile_get_reader (cf->flexifile, NULL);
-  struct casefile *cfile;
-
-  struct casefile_factory *factory  = flexifile_factory_create ();
-
-  cfile = sort_execute (reader, sc, factory);
-
-  casefile_destroy (cf->flexifile);
-
-  cf->flexifile = cfile;
+  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 < casefile_get_case_cnt (cf->flexifile) ; ++c )
-    g_signal_emit (cf, signal[CASE_CHANGED], 0, c);
-
-  flexifile_factory_destroy (factory);
+  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. */
+   one of them at the position immediately preceeding WHERE.
+*/
 gboolean
 psppire_case_file_insert_values (PsppireCaseFile *cf,
-				 gint n_values, gint before)
+				 gint n_values, gint where)
 {
   g_return_val_if_fail (cf, FALSE);
+  g_return_val_if_fail (cf->accessible, FALSE);
 
-  if ( ! cf->flexifile )
-    {
-      cf->flexifile = flexifile_create (n_values);
+  if ( n_values == 0 )
+    return FALSE;
 
-      return TRUE;
-    }
+  g_assert (n_values > 0);
 
-  return flexifile_resize (FLEXIFILE (cf->flexifile), n_values, before);
+  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, gint casenum,
+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->flexifile, FALSE);
+  g_return_val_if_fail (cf->datasheet, FALSE);
 
-  return flexifile_get_case (FLEXIFILE (cf->flexifile), casenum, c);
+  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;
+}
+