diff options
Diffstat (limited to 'widgets/e-table/e-table-sorter.c')
-rw-r--r-- | widgets/e-table/e-table-sorter.c | 295 |
1 files changed, 0 insertions, 295 deletions
diff --git a/widgets/e-table/e-table-sorter.c b/widgets/e-table/e-table-sorter.c deleted file mode 100644 index eb2391b0d0..0000000000 --- a/widgets/e-table/e-table-sorter.c +++ /dev/null @@ -1,295 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ -/* - * E-table-sorted.c: Implements a table that sorts 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-sorter.h" - -#define PARENT_TYPE gtk_object_get_type() - -#define INCREMENT_AMOUNT 100 - -static GtkObjectClass *parent_class; - -static void ets_model_changed (ETableModel *etm, ETableSorter *ets); -static void ets_model_row_changed (ETableModel *etm, int row, ETableSorter *ets); -static void ets_model_cell_changed (ETableModel *etm, int col, int row, ETableSorter *ets); -static void ets_sort_info_changed (ETableSortInfo *info, ETableSorter *ets); -static void ets_clean (ETableSorter *ets); -static void ets_sort (ETableSorter *ets); -static void ets_backsort (ETableSorter *ets); - -static void -ets_destroy (GtkObject *object) -{ - ETableSorter *ets = E_TABLE_SORTER (object); - - gtk_signal_disconnect (GTK_OBJECT (ets->source), - ets->table_model_changed_id); - gtk_signal_disconnect (GTK_OBJECT (ets->source), - ets->table_model_row_changed_id); - gtk_signal_disconnect (GTK_OBJECT (ets->source), - ets->table_model_cell_changed_id); - gtk_signal_disconnect (GTK_OBJECT (ets->sort_info), - ets->sort_info_changed_id); - - ets->table_model_changed_id = 0; - ets->table_model_row_changed_id = 0; - ets->table_model_cell_changed_id = 0; - ets->sort_info_changed_id = 0; - - if (ets->sort_info) - gtk_object_unref(GTK_OBJECT(ets->sort_info)); - if (ets->full_header) - gtk_object_unref(GTK_OBJECT(ets->full_header)); - if (ets->source) - gtk_object_unref(GTK_OBJECT(ets->source)); - - GTK_OBJECT_CLASS (parent_class)->destroy (object); -} - -static void -ets_class_init (ETableSorterClass *klass) -{ - GtkObjectClass *object_class = GTK_OBJECT_CLASS(klass); - - parent_class = gtk_type_class (PARENT_TYPE); - - object_class->destroy = ets_destroy; -} - -static void -ets_init (ETableSorter *ets) -{ - ets->full_header = NULL; - ets->sort_info = NULL; - ets->source = NULL; - - ets->needs_sorting = -1; - - ets->table_model_changed_id = 0; - ets->table_model_row_changed_id = 0; - ets->table_model_cell_changed_id = 0; - ets->sort_info_changed_id = 0; -} - -E_MAKE_TYPE(e_table_sorter, "ETableSorter", ETableSorter, ets_class_init, ets_init, PARENT_TYPE); - -ETableSorter * -e_table_sorter_new (ETableModel *source, ETableHeader *full_header, ETableSortInfo *sort_info) -{ - ETableSorter *ets = gtk_type_new (E_TABLE_SORTER_TYPE); - - ets->sort_info = sort_info; - gtk_object_ref(GTK_OBJECT(ets->sort_info)); - ets->full_header = full_header; - gtk_object_ref(GTK_OBJECT(ets->full_header)); - ets->source = source; - gtk_object_ref(GTK_OBJECT(ets->source)); - - ets->table_model_changed_id = gtk_signal_connect (GTK_OBJECT (source), "model_changed", - GTK_SIGNAL_FUNC (ets_model_changed), ets); - ets->table_model_row_changed_id = gtk_signal_connect (GTK_OBJECT (source), "model_row_changed", - GTK_SIGNAL_FUNC (ets_model_row_changed), ets); - ets->table_model_cell_changed_id = gtk_signal_connect (GTK_OBJECT (source), "model_cell_changed", - GTK_SIGNAL_FUNC (ets_model_cell_changed), ets); - ets->sort_info_changed_id = gtk_signal_connect (GTK_OBJECT (sort_info), "sort_info_changed", - GTK_SIGNAL_FUNC (ets_sort_info_changed), ets); - - return ets; -} - -static void -ets_model_changed (ETableModel *etm, ETableSorter *ets) -{ - ets_clean(ets); -} - -static void -ets_model_row_changed (ETableModel *etm, int row, ETableSorter *ets) -{ - ets_clean(ets); -} - -static void -ets_model_cell_changed (ETableModel *etm, int col, int row, ETableSorter *ets) -{ - ets_clean(ets); -} - -static void -ets_sort_info_changed (ETableSortInfo *info, ETableSorter *ets) -{ - ets_clean(ets); -} - -static ETableSorter *ets_closure; -void **vals_closure; -int cols_closure; -int *ascending_closure; -GCompareFunc *compare_closure; - -/* FIXME: Make it not cache the second and later columns (as if anyone cares.) */ - -static int -qsort_callback(const void *data1, const void *data2) -{ - gint row1 = *(int *)data1; - gint row2 = *(int *)data2; - int j; - int sort_count = e_table_sort_info_sorting_get_count(ets_closure->sort_info) + e_table_sort_info_grouping_get_count(ets_closure->sort_info); - int comp_val = 0; - int ascending = 1; - for (j = 0; j < sort_count; j++) { - comp_val = (*(compare_closure[j]))(vals_closure[cols_closure * row1 + j], vals_closure[cols_closure * row2 + j]); - ascending = ascending_closure[j]; - if (comp_val != 0) - break; - } - if (comp_val == 0) { - if (row1 < row2) - comp_val = -1; - if (row1 > row2) - comp_val = 1; - } - if (!ascending) - comp_val = -comp_val; - return comp_val; -} - -static void -ets_clean(ETableSorter *ets) -{ - g_free(ets->sorted); - ets->sorted = NULL; - - g_free(ets->backsorted); - ets->backsorted = NULL; - - ets->needs_sorting = -1; -} - -static void -ets_sort(ETableSorter *ets) -{ - int rows; - int i; - int j; - int cols; - int group_cols; - - if (ets->sorted) - return; - - rows = e_table_model_row_count(ets->source); - group_cols = e_table_sort_info_grouping_get_count(ets->sort_info); - cols = e_table_sort_info_sorting_get_count(ets->sort_info) + group_cols; - - ets->sorted = g_new(int, rows); - for (i = 0; i < rows; i++) - ets->sorted[i] = i; - - cols_closure = cols; - ets_closure = ets; - - vals_closure = g_new(void *, rows * cols); - ascending_closure = g_new(int, cols); - compare_closure = g_new(GCompareFunc, cols); - - for (j = 0; j < cols; j++) { - ETableSortColumn column; - ETableCol *col; - - if (j < group_cols) - column = e_table_sort_info_grouping_get_nth(ets->sort_info, j); - else - column = e_table_sort_info_sorting_get_nth(ets->sort_info, j - group_cols); - - if (column.column > e_table_header_count (ets->full_header)) - col = e_table_header_get_column (ets->full_header, e_table_header_count (ets->full_header) - 1); - else - col = e_table_header_get_column (ets->full_header, column.column); - - for (i = 0; i < rows; i++) { - vals_closure[i * cols + j] = e_table_model_value_at (ets->source, col->col_idx, i); - } - - compare_closure[j] = col->compare; - ascending_closure[j] = column.ascending; - } - qsort(ets->sorted, rows, sizeof(int), qsort_callback); - - g_free(vals_closure); - g_free(ascending_closure); - g_free(compare_closure); -} - -static void -ets_backsort(ETableSorter *ets) -{ - int i, rows; - - if (ets->backsorted) - return; - - ets_sort(ets); - - rows = e_table_model_row_count(ets->source); - ets->backsorted = g_new0(int, rows); - - for (i = 0; i < rows; i++) { - ets->backsorted[ets->sorted[i]] = i; - } -} - -gboolean -e_table_sorter_needs_sorting(ETableSorter *ets) -{ - if (ets->needs_sorting < 0) { - if (e_table_sort_info_sorting_get_count(ets->sort_info) + e_table_sort_info_grouping_get_count(ets->sort_info)) - ets->needs_sorting = 1; - else - ets->needs_sorting = 0; - } - return ets->needs_sorting; -} - - -gint -e_table_sorter_model_to_sorted (ETableSorter *sorter, int row) -{ - int rows = e_table_model_row_count(sorter->source); - - g_return_val_if_fail(row >= 0, -1); - g_return_val_if_fail(row < rows, -1); - - if (e_table_sorter_needs_sorting(sorter)) { - ets_backsort(sorter); - return sorter->backsorted[row]; - } else - return row; -} - -gint -e_table_sorter_sorted_to_model (ETableSorter *sorter, int row) -{ - int rows = e_table_model_row_count(sorter->source); - - g_return_val_if_fail(row >= 0, -1); - g_return_val_if_fail(row < rows, -1); - - if (e_table_sorter_needs_sorting(sorter)) { - ets_sort(sorter); - return sorter->sorted[row]; - } else - return row; -} |