aboutsummaryrefslogblamecommitdiffstats
path: root/e-util/e-table-subset-variable.c
blob: e88ec3dd12d5556c3c2cc07de1ea8a065fa96a20 (plain) (tree)
1
2
3
4
5
6
7
8
9
  


                                                                           
  



                                                                             
  

                                                                           
  
  




                                                        
   
 
                    
                   
      
 
                   
                   
 

                                    
                                                              
 



                                
 

                           
           

                                       
 

                                                    
 
                                       
 
                                                        
                                                            


                                                                 
         
 
                                             

                                                          

 
           
                                             

                                   
 

                                                    
               
 
                                       
 
                                                            
                                                                         


                                                                 







                                                          
                                           
 

                                                    
                                  

                  
 
                                       
 


                                                              
                                                           
                                                                        


                                                                 


                                                   

                                    

 
               

                                          
 

                                                    
               
 
                                           
                                                
                                                       



                                                                       
                                      
 

                                                           

                 
                     
 

           
                                                                     
 
                               

                                           
                                     

 
           
                                                          


                           


                                                               
                                                       
 
                                                                                 
                            
                                          






                                                 
                                                                                        
 
                                                                        
                                       






                                     

                                                         
 
                                         
                                                              
 
                                     
                                                      

 
    


                                                               

                                         
                                                              
 
                                           



                                                                     
                                                             

                                         
                                                              
 
                                         


                                                     
        

                                                            
 
                                                    
                                                                         
 
                                        


                                                                


    

                                                           

                                                    



                                       
                                                    
                                    
 



                                    
                                                               

                                                 
 
               
                                                    
                                           
                                                   




                                                     
                                                               

                                                 
 
               
                                                    
                                           
                                                   




                                                     
                                                                    
                                                   
 
                                                    
                       
                          
                                  
                                                                                     

         
/*
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation.
 *
 * 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 Lesser General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 *
 *
 * Authors:
 *      Chris Lahey <clahey@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <stdlib.h>
#include <string.h>

#include "e-table-subset-variable.h"

#define ETSSV_CLASS(e) (E_TABLE_SUBSET_VARIABLE_GET_CLASS (e))

G_DEFINE_TYPE (
    ETableSubsetVariable,
    e_table_subset_variable,
    E_TYPE_TABLE_SUBSET)

#define INCREMENT_AMOUNT 10

static void
etssv_add (ETableSubsetVariable *etssv,
           gint row)
{
    ETableModel *etm = E_TABLE_MODEL (etssv);
    ETableSubset *etss = E_TABLE_SUBSET (etssv);

    e_table_model_pre_change (etm);

    if (etss->n_map + 1 > etssv->n_vals_allocated) {
        etssv->n_vals_allocated += INCREMENT_AMOUNT;
        etss->map_table = g_realloc (
            etss->map_table,
            etssv->n_vals_allocated * sizeof (gint));
    }

    etss->map_table[etss->n_map++] = row;

    e_table_model_row_inserted (etm, etss->n_map - 1);
}

static void
etssv_add_array (ETableSubsetVariable *etssv,
                 const gint *array,
                 gint count)
{
    ETableModel *etm = E_TABLE_MODEL (etssv);
    ETableSubset *etss = E_TABLE_SUBSET (etssv);
    gint i;

    e_table_model_pre_change (etm);

    if (etss->n_map + count > etssv->n_vals_allocated) {
        etssv->n_vals_allocated += MAX (INCREMENT_AMOUNT, count);
        etss->map_table = g_realloc (
            etss->map_table,
            etssv->n_vals_allocated * sizeof (gint));
    }
    for (i = 0; i < count; i++)
        etss->map_table[etss->n_map++] = array[i];

    e_table_model_changed (etm);
}

static void
etssv_add_all (ETableSubsetVariable *etssv)
{
    ETableModel *etm = E_TABLE_MODEL (etssv);
    ETableSubset *etss = E_TABLE_SUBSET (etssv);
    ETableModel *source_model;
    gint rows;
    gint i;

    e_table_model_pre_change (etm);

    source_model = e_table_subset_get_source_model (etss);
    rows = e_table_model_row_count (source_model);

    if (etss->n_map + rows > etssv->n_vals_allocated) {
        etssv->n_vals_allocated += MAX (INCREMENT_AMOUNT, rows);
        etss->map_table = g_realloc (
            etss->map_table,
            etssv->n_vals_allocated * sizeof (gint));
    }
    for (i = 0; i < rows; i++)
        etss->map_table[etss->n_map++] = i;

    e_table_model_changed (etm);
}

static gboolean
etssv_remove (ETableSubsetVariable *etssv,
              gint row)
{
    ETableModel *etm = E_TABLE_MODEL (etssv);
    ETableSubset *etss = E_TABLE_SUBSET (etssv);
    gint i;

    for (i = 0; i < etss->n_map; i++) {
        if (etss->map_table[i] == row) {
            e_table_model_pre_change (etm);
            memmove (
                etss->map_table + i,
                etss->map_table + i + 1,
                (etss->n_map - i - 1) * sizeof (gint));
            etss->n_map--;

            e_table_model_row_deleted (etm, i);
            return TRUE;
        }
    }
    return FALSE;
}

static void
e_table_subset_variable_class_init (ETableSubsetVariableClass *class)
{
    class->add = etssv_add;
    class->add_array = etssv_add_array;
    class->add_all = etssv_add_all;
    class->remove = etssv_remove;
}

static void
e_table_subset_variable_init (ETableSubsetVariable *etssv)
{
    /* nothing to do */
}

ETableModel *
e_table_subset_variable_construct (ETableSubsetVariable *etssv,
                                   ETableModel *source)
{
    if (e_table_subset_construct (E_TABLE_SUBSET (etssv), source, 1) == NULL)
        return NULL;
    E_TABLE_SUBSET (etssv)->n_map = 0;

    return E_TABLE_MODEL (etssv);
}

ETableModel *
e_table_subset_variable_new (ETableModel *source)
{
    ETableSubsetVariable *etssv = g_object_new (E_TYPE_TABLE_SUBSET_VARIABLE, NULL);

    if (e_table_subset_variable_construct (etssv, source) == NULL) {
        g_object_unref (etssv);
        return NULL;
    }

    return (ETableModel *) etssv;
}

void
e_table_subset_variable_add (ETableSubsetVariable *etssv,
                             gint row)
{
    g_return_if_fail (etssv != NULL);
    g_return_if_fail (E_IS_TABLE_SUBSET_VARIABLE (etssv));

    if (ETSSV_CLASS (etssv)->add)
        ETSSV_CLASS (etssv)->add (etssv, row);
}

void
e_table_subset_variable_add_array (ETableSubsetVariable *etssv,
                                   const gint *array,
                                   gint count)
{
    g_return_if_fail (etssv != NULL);
    g_return_if_fail (E_IS_TABLE_SUBSET_VARIABLE (etssv));

    if (ETSSV_CLASS (etssv)->add_array)
        ETSSV_CLASS (etssv)->add_array (etssv, array, count);
}

void
e_table_subset_variable_add_all (ETableSubsetVariable *etssv)
{
    g_return_if_fail (etssv != NULL);
    g_return_if_fail (E_IS_TABLE_SUBSET_VARIABLE (etssv));

    if (ETSSV_CLASS (etssv)->add_all)
        ETSSV_CLASS (etssv)->add_all (etssv);
}

gboolean
e_table_subset_variable_remove (ETableSubsetVariable *etssv,
                                gint row)
{
    g_return_val_if_fail (etssv != NULL, FALSE);
    g_return_val_if_fail (E_IS_TABLE_SUBSET_VARIABLE (etssv), FALSE);

    if (ETSSV_CLASS (etssv)->remove)
        return ETSSV_CLASS (etssv)->remove (etssv, row);
    else
        return FALSE;
}

void
e_table_subset_variable_clear (ETableSubsetVariable *etssv)
{
    ETableModel *etm = E_TABLE_MODEL (etssv);
    ETableSubset *etss = E_TABLE_SUBSET (etssv);

    e_table_model_pre_change (etm);
    etss->n_map = 0;
    g_free (etss->map_table);
    etss->map_table = (gint *) g_new (guint, 1);
    etssv->n_vals_allocated = 1;

    e_table_model_changed (etm);
}

void
e_table_subset_variable_increment (ETableSubsetVariable *etssv,
                                   gint position,
                                   gint amount)
{
    gint i;
    ETableSubset *etss = E_TABLE_SUBSET (etssv);
    for (i = 0; i < etss->n_map; i++) {
        if (etss->map_table[i] >= position)
            etss->map_table[i] += amount;
    }
}

void
e_table_subset_variable_decrement (ETableSubsetVariable *etssv,
                                   gint position,
                                   gint amount)
{
    gint i;
    ETableSubset *etss = E_TABLE_SUBSET (etssv);
    for (i = 0; i < etss->n_map; i++) {
        if (etss->map_table[i] >= position)
            etss->map_table[i] -= amount;
    }
}

void
e_table_subset_variable_set_allocation (ETableSubsetVariable *etssv,
                                        gint total)
{
    ETableSubset *etss = E_TABLE_SUBSET (etssv);
    if (total <= 0)
        total = 1;
    if (total > etss->n_map) {
        etss->map_table = g_realloc (etss->map_table, total * sizeof (gint));
    }
}