aboutsummaryrefslogtreecommitdiffstats
path: root/widgets/e-table/e-table-subset-variable.c
blob: bd96d5360cde705bc30514eb94325fc184572f02 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * E-table-subset.c: Implements a table that contains a subset of another table.
 *
 * Author:
 *   Miguel de Icaza (miguel@gnu.org)
 *
 * (C) 1999 Helix Code, Inc.
 */
#include <config.h>
#include <stdlib.h>
#include <gtk/gtksignal.h>
#include <string.h>
#include "e-util/e-util.h"
#include "e-table-subset-variable.h"

#define ETSSV_CLASS(e) ((ETableSubsetVariableClass *)((GtkObject *)e)->klass)

#define PARENT_TYPE E_TABLE_SUBSET_TYPE

#define INCREMENT_AMOUNT 10

static ETableSubsetClass *etssv_parent_class;

static void
etssv_add       (ETableSubsetVariable *etssv,
         gint                  row)
{
    ETableModel *etm = E_TABLE_MODEL(etssv);
    ETableSubset *etss = E_TABLE_SUBSET(etssv);
    
    if (etss->n_map + 1 > etssv->n_vals_allocated){
        etss->map_table = g_realloc (etss->map_table, (etssv->n_vals_allocated + INCREMENT_AMOUNT) * sizeof(int));
        etssv->n_vals_allocated += INCREMENT_AMOUNT;
    }
    etss->map_table[etss->n_map++] = row;
    if (!etm->frozen)
        e_table_model_changed (etm);
}

static void
etssv_add_all   (ETableSubsetVariable *etssv)
{
    ETableModel *etm = E_TABLE_MODEL(etssv);
    ETableSubset *etss = E_TABLE_SUBSET(etssv);
    int rows = e_table_model_row_count(etss->source);
    int i;
    
    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(int));
    }
    for (i = 0; i < rows; i++)
        etss->map_table[etss->n_map++] = i;
    if (!etm->frozen)
        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);
    int i;
    
    for (i = 0; i < etss->n_map; i++){
        if (etss->map_table[i] == row) {
            memmove (etss->map_table + i, etss->map_table + i + 1, (etss->n_map - i - 1) * sizeof(int));
            etss->n_map --;
            if (!etm->frozen)
                e_table_model_changed (etm);
            return TRUE;
        }
    }
    return FALSE;
}

static void
etssv_class_init (GtkObjectClass *object_class)
{
    ETableSubsetVariableClass *klass = E_TABLE_SUBSET_VARIABLE_CLASS(object_class);
    etssv_parent_class = gtk_type_class (PARENT_TYPE);

    klass->add     = etssv_add;
    klass->add_all = etssv_add_all;
    klass->remove  = etssv_remove;
}

E_MAKE_TYPE(e_table_subset_variable, "ETableSubsetVariable", ETableSubsetVariable, etssv_class_init, NULL, PARENT_TYPE);

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 = gtk_type_new (E_TABLE_SUBSET_VARIABLE_TYPE);

    if (e_table_subset_variable_construct (etssv, source) == NULL){
        gtk_object_destroy (GTK_OBJECT (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_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_increment (ETableSubsetVariable *etssv,
                   gint                  position,
                   gint                  amount)
{
    int 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(int));
    }
}