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Diffstat (limited to 'e-util/e-bit-array.c')
| -rw-r--r-- | e-util/e-bit-array.c | 429 |
1 files changed, 0 insertions, 429 deletions
diff --git a/e-util/e-bit-array.c b/e-util/e-bit-array.c deleted file mode 100644 index 274ee32b09..0000000000 --- a/e-util/e-bit-array.c +++ /dev/null @@ -1,429 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ -/* - * e-bit-array.c - * Copyright 2000, 2001, Ximian, Inc. - * - * Authors: - * Chris Lahey <clahey@ximian.com> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License, version 2, as published by the Free Software Foundation. - * - * This library 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 - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA - * 02111-1307, USA. - */ - -#include <config.h> -#include <gtk/gtksignal.h> -#include "e-bit-array.h" -#include "gal/util/e-util.h" - -#define EBA_CLASS(e) ((EBitArrayClass *)((GtkObject *)e)->klass) - -#define PARENT_TYPE (gtk_object_get_type ()) - -#define ONES ((guint32) 0xffffffff) - -#define BOX(n) ((n) / 32) -#define OFFSET(n) (31 - ((n) % 32)) -#define BITMASK(n) ((guint32)(((guint32) 0x1) << OFFSET((n)))) -#define BITMASK_LEFT(n) ((((n) % 32) == 0) ? 0 : (ONES << (32 - ((n) % 32)))) -#define BITMASK_RIGHT(n) ((guint32)(((guint32) ONES) >> ((n) % 32))) - -static GtkObjectClass *parent_class; - -static void -e_bit_array_insert_real(EBitArray *eba, int row) -{ - int box; - int i; - if(eba->bit_count >= 0) { - /* Add another word if needed. */ - if ((eba->bit_count & 0x1f) == 0) { - eba->data = g_renew(gint, eba->data, (eba->bit_count >> 5) + 1); - eba->data[eba->bit_count >> 5] = 0; - } - - /* The box is the word that our row is in. */ - box = BOX(row); - /* Shift all words to the right of our box right one bit. */ - for (i = eba->bit_count >> 5; i > box; i--) { - eba->data[i] = (eba->data[i] >> 1) | (eba->data[i - 1] << 31); - } - - /* Shift right half of box one bit to the right. */ - eba->data[box] = (eba->data[box] & BITMASK_LEFT(row)) | ((eba->data[box] & BITMASK_RIGHT(row)) >> 1); - eba->bit_count ++; - } -} - -static void -e_bit_array_delete_real(EBitArray *eba, int row, gboolean move_selection_mode) -{ - int box; - int i; - int last; - int selected = FALSE; - if(eba->bit_count >= 0) { - guint32 bitmask; - box = row >> 5; - last = eba->bit_count >> 5; - - /* Build bitmasks for the left and right half of the box */ - bitmask = BITMASK_RIGHT(row) >> 1; - if (move_selection_mode) - selected = e_bit_array_value_at(eba, row); - /* Shift right half of box one bit to the left. */ - eba->data[box] = (eba->data[box] & BITMASK_LEFT(row))| ((eba->data[box] & bitmask) << 1); - - /* Shift all words to the right of our box left one bit. */ - if (box < last) { - eba->data[box] &= eba->data[box + 1] >> 31; - - for (i = box + 1; i < last; i++) { - eba->data[i] = (eba->data[i] << 1) | (eba->data[i + 1] >> 31); - } - /* this over-runs our memory! */ - /*eba->data[i] = eba->data[i] << 1; */ - } - eba->bit_count --; - /* Remove the last word if not needed. */ - if ((eba->bit_count & 0x1f) == 0) { - eba->data = g_renew(gint, eba->data, eba->bit_count >> 5); - } - if (move_selection_mode && selected) { - e_bit_array_select_single_row (eba, row > 0 ? row - 1 : 0); - } - } -} - -/* FIXME : Improve efficiency here. */ -void -e_bit_array_delete(EBitArray *eba, int row, int count) -{ - int i; - for (i = 0; i < count; i++) - e_bit_array_delete_real(eba, row, FALSE); -} - -/* FIXME : Improve efficiency here. */ -void -e_bit_array_delete_single_mode(EBitArray *eba, int row, int count) -{ - int i; - for (i = 0; i < count; i++) - e_bit_array_delete_real(eba, row, TRUE); -} - -/* FIXME : Improve efficiency here. */ -void -e_bit_array_insert(EBitArray *eba, int row, int count) -{ - int i; - for (i = 0; i < count; i++) - e_bit_array_insert_real(eba, row); -} - -/* FIXME: Implement this more efficiently. */ -void -e_bit_array_move_row(EBitArray *eba, int old_row, int new_row) -{ - e_bit_array_delete_real(eba, old_row, FALSE); - e_bit_array_insert_real(eba, new_row); -} - -static void -eba_destroy (GtkObject *object) -{ - EBitArray *eba; - - eba = E_BIT_ARRAY (object); - - g_free(eba->data); - - if (GTK_OBJECT_CLASS (parent_class)->destroy) - (* GTK_OBJECT_CLASS (parent_class)->destroy) (object); -} - -/** - * e_selection_model_is_row_selected - * @selection: #EBitArray to check - * @n: The row to check - * - * This routine calculates whether the given row is selected. - * - * Returns: %TRUE if the given row is selected - */ -gboolean -e_bit_array_value_at (EBitArray *eba, - gint n) -{ - if (eba->bit_count < n || eba->bit_count == 0) - return 0; - else - return (eba->data[BOX(n)] >> OFFSET(n)) & 0x1; -} - -/** - * e_selection_model_foreach - * @selection: #EBitArray to traverse - * @callback: The callback function to call back. - * @closure: The closure - * - * This routine calls the given callback function once for each - * selected row, passing closure as the closure. - */ -void -e_bit_array_foreach (EBitArray *eba, - EForeachFunc callback, - gpointer closure) -{ - int i; - int last = (eba->bit_count + 31) / 32; - for (i = 0; i < last; i++) { - if (eba->data[i]) { - int j; - guint32 value = eba->data[i]; - for (j = 0; j < 32; j++) { - if (value & 0x80000000) { - callback(i * 32 + j, closure); - } - value <<= 1; - } - } - } -} - -/** - * e_selection_model_clear - * @selection: #EBitArray to clear - * - * This routine clears the selection to no rows selected. - */ -void -e_bit_array_clear(EBitArray *eba) -{ - g_free(eba->data); - eba->data = NULL; - eba->bit_count = 0; -} - -#define PART(x,n) (((x) & (0x01010101 << n)) >> n) -#define SECTION(x, n) (((x) >> (n * 8)) & 0xff) - -/** - * e_selection_model_selected_count - * @selection: #EBitArray to count - * - * This routine calculates the number of rows selected. - * - * Returns: The number of rows selected in the given model. - */ -gint -e_bit_array_selected_count (EBitArray *eba) -{ - gint count; - int i; - int last; - - if (!eba->data) - return 0; - - count = 0; - - last = BOX(eba->bit_count - 1); - - for (i = 0; i <= last; i++) { - int j; - guint32 thiscount = 0; - for (j = 0; j < 8; j++) - thiscount += PART(eba->data[i], j); - for (j = 0; j < 4; j++) - count += SECTION(thiscount, j); - } - - return count; -} - -/** - * e_selection_model_select_all - * @selection: #EBitArray to select all - * - * This routine selects all the rows in the given - * #EBitArray. - */ -void -e_bit_array_select_all (EBitArray *eba) -{ - int i; - - if (!eba->data) - eba->data = g_new0 (gint, (eba->bit_count + 31) / 32); - - for (i = 0; i < (eba->bit_count + 31) / 32; i ++) { - eba->data[i] = ONES; - } - - /* need to zero out the bits corresponding to the rows not - selected in the last full 32 bit mask */ - if (eba->bit_count % 32) { - int unselected_mask = 0; - int num_unselected_in_last_byte = 32 - eba->bit_count % 32; - - for (i = 0; i < num_unselected_in_last_byte; i ++) - unselected_mask |= 1 << i; - - eba->data[(eba->bit_count + 31) / 32 - 1] &= ~unselected_mask; - } -} - -/** - * e_selection_model_invert_selection - * @selection: #EBitArray to invert - * - * This routine inverts all the rows in the given - * #EBitArray. - */ -void -e_bit_array_invert_selection (EBitArray *eba) -{ - int i; - - if (!eba->data) - eba->data = g_new0 (gint, (eba->bit_count + 31) / 32); - - for (i = 0; i < (eba->bit_count + 31) / 32; i ++) { - eba->data[i] = ~eba->data[i]; - } -} - -int -e_bit_array_bit_count (EBitArray *eba) -{ - return eba->bit_count; -} - -gboolean -e_bit_array_cross_and (EBitArray *eba) -{ - int i; - for (i = 0; i < eba->bit_count / 32; i++) { - if (eba->data[i] != ONES) - return FALSE; - } - if ((eba->bit_count % 32) && ((eba->data[i] & BITMASK_LEFT(eba->bit_count)) != BITMASK_LEFT(eba->bit_count))) - return FALSE; - return TRUE; -} - -gboolean -e_bit_array_cross_or (EBitArray *eba) -{ - int i; - for (i = 0; i < eba->bit_count / 32; i++) { - if (eba->data[i] != 0) - return TRUE; - } - if ((eba->bit_count % 32) && ((eba->data[i] & BITMASK_LEFT(eba->bit_count)) != 0)) - return TRUE; - return FALSE; -} - -#define OPERATE(object, i,mask,grow) ((grow) ? (((object)->data[(i)]) |= ((guint32) ~(mask))) : (((object)->data[(i)]) &= (mask))) - -void -e_bit_array_change_one_row(EBitArray *eba, int row, gboolean grow) -{ - int i; - i = BOX(row); - - OPERATE(eba, i, ~BITMASK(row), grow); -} - -void -e_bit_array_change_range(EBitArray *eba, int start, int end, gboolean grow) -{ - int i, last; - if (start != end) { - i = BOX(start); - last = BOX(end); - - if (i == last) { - OPERATE(eba, i, BITMASK_LEFT(start) | BITMASK_RIGHT(end), grow); - } else { - OPERATE(eba, i, BITMASK_LEFT(start), grow); - if (grow) - for (i ++; i < last; i++) - eba->data[i] = ONES; - else - for (i ++; i < last; i++) - eba->data[i] = 0; - OPERATE(eba, i, BITMASK_RIGHT(end), grow); - } - } -} - -void -e_bit_array_select_single_row (EBitArray *eba, int row) -{ - int i; - for (i = 0; i < ((eba->bit_count + 31) / 32); i++) { - if (!((i == BOX(row) && eba->data[i] == BITMASK(row)) || - (i != BOX(row) && eba->data[i] == 0))) { - g_free(eba->data); - eba->data = g_new0(gint, (eba->bit_count + 31) / 32); - eba->data[BOX(row)] = BITMASK(row); - - break; - } - } -} - -void -e_bit_array_toggle_single_row (EBitArray *eba, int row) -{ - if (eba->data[BOX(row)] & BITMASK(row)) - eba->data[BOX(row)] &= ~BITMASK(row); - else - eba->data[BOX(row)] |= BITMASK(row); -} - - -static void -e_bit_array_init (EBitArray *eba) -{ - eba->data = NULL; - eba->bit_count = 0; -} - -static void -e_bit_array_class_init (EBitArrayClass *klass) -{ - GtkObjectClass *object_class; - - parent_class = gtk_type_class (PARENT_TYPE); - - object_class = GTK_OBJECT_CLASS(klass); - - object_class->destroy = eba_destroy; -} - -E_MAKE_TYPE(e_bit_array, "EBitArray", EBitArray, - e_bit_array_class_init, e_bit_array_init, PARENT_TYPE); - -EBitArray * -e_bit_array_new (int count) -{ - EBitArray *eba = gtk_type_new (e_bit_array_get_type ()); - eba->bit_count = count; - eba->data = g_new0(gint, (eba->bit_count + 31) / 32); - return eba; -} |