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authorMatthew Barnes <mbarnes@redhat.com>2012-12-10 21:09:59 +0800
committerMatthew Barnes <mbarnes@redhat.com>2012-12-13 03:33:43 +0800
commitd09d8de870b6697c8a8b262e7e077b871a69b315 (patch)
tree3b718882e7a0bb0a996daf2967a033d91714c9b5 /widgets/table/e-table-header.c
parentb61331ed03ac1c7a9b8614e25510040b9c60ae02 (diff)
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Consolidate base utility libraries into libeutil.
Evolution consists of entirely too many small utility libraries, which increases linking and loading time, places a burden on higher layers of the application (e.g. modules) which has to remember to link to all the small in-tree utility libraries, and makes it difficult to generate API documentation for these utility libraries in one Gtk-Doc module. Merge the following utility libraries under the umbrella of libeutil, and enforce a single-include policy on libeutil so we can reorganize the files as desired without disrupting its pseudo-public API. libemail-utils/libemail-utils.la libevolution-utils/libevolution-utils.la filter/libfilter.la widgets/e-timezone-dialog/libetimezonedialog.la widgets/menus/libmenus.la widgets/misc/libemiscwidgets.la widgets/table/libetable.la widgets/text/libetext.la This also merges libedataserverui from the Evolution-Data-Server module, since Evolution is its only consumer nowadays, and I'd like to make some improvements to those APIs without concern for backward-compatibility. And finally, start a Gtk-Doc module for libeutil. It's going to be a project just getting all the symbols _listed_ much less _documented_. But the skeletal structure is in place and I'm off to a good start.
Diffstat (limited to 'widgets/table/e-table-header.c')
-rw-r--r--widgets/table/e-table-header.c1014
1 files changed, 0 insertions, 1014 deletions
diff --git a/widgets/table/e-table-header.c b/widgets/table/e-table-header.c
deleted file mode 100644
index 325390d559..0000000000
--- a/widgets/table/e-table-header.c
+++ /dev/null
@@ -1,1014 +0,0 @@
-/*
- * 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; either
- * version 2 of the License, or (at your option) version 3.
- *
- * 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with the program; if not, see <http://www.gnu.org/licenses/>
- *
- *
- * Authors:
- * Chris Lahey <clahey@ximian.com>
- * Miguel de Icaza <miguel@ximian.com>
- *
- * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
- *
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <string.h>
-
-#include <gtk/gtk.h>
-
-#include "e-util/e-util.h"
-
-#include "e-table-defines.h"
-#include "e-table-header.h"
-
-enum {
- PROP_0,
- PROP_SORT_INFO,
- PROP_WIDTH,
- PROP_WIDTH_EXTRAS
-};
-
-enum {
- STRUCTURE_CHANGE,
- DIMENSION_CHANGE,
- EXPANSION_CHANGE,
- REQUEST_WIDTH,
- LAST_SIGNAL
-};
-
-static void eth_set_size (ETableHeader *eth, gint idx, gint size);
-static void eth_calc_widths (ETableHeader *eth);
-
-static guint eth_signals[LAST_SIGNAL] = { 0, };
-
-G_DEFINE_TYPE (ETableHeader, e_table_header, G_TYPE_OBJECT)
-
-struct two_ints {
- gint column;
- gint width;
-};
-
-static void
-eth_set_width (ETableHeader *eth,
- gint width)
-{
- eth->width = width;
-}
-
-static void
-dequeue (ETableHeader *eth,
- gint *column,
- gint *width)
-{
- GSList *head;
- struct two_ints *store;
- head = eth->change_queue;
- eth->change_queue = eth->change_queue->next;
- if (!eth->change_queue)
- eth->change_tail = NULL;
- store = head->data;
- g_slist_free_1 (head);
- if (column)
- *column = store->column;
- if (width)
- *width = store->width;
- g_free (store);
-}
-
-static gboolean
-dequeue_idle (ETableHeader *eth)
-{
- gint column, width;
-
- dequeue (eth, &column, &width);
- while (eth->change_queue && ((struct two_ints *)
- eth->change_queue->data)->column == column)
- dequeue (eth, &column, &width);
-
- if (column == -1)
- eth_set_width (eth, width);
- else if (column < eth->col_count)
- eth_set_size (eth, column, width);
- if (eth->change_queue)
- return TRUE;
- else {
- eth_calc_widths (eth);
- eth->idle = 0;
- return FALSE;
- }
-}
-
-static void
-enqueue (ETableHeader *eth,
- gint column,
- gint width)
-{
- struct two_ints *store;
- store = g_new (struct two_ints, 1);
- store->column = column;
- store->width = width;
-
- eth->change_tail = g_slist_last (g_slist_append (eth->change_tail, store));
- if (!eth->change_queue)
- eth->change_queue = eth->change_tail;
-
- if (!eth->idle) {
- eth->idle = g_idle_add_full (
- G_PRIORITY_LOW, (GSourceFunc)
- dequeue_idle, eth, NULL);
- }
-}
-
-void
-e_table_header_set_size (ETableHeader *eth,
- gint idx,
- gint size)
-{
- g_return_if_fail (eth != NULL);
- g_return_if_fail (E_IS_TABLE_HEADER (eth));
-
- enqueue (eth, idx, size);
-}
-
-static void
-eth_do_remove (ETableHeader *eth,
- gint idx,
- gboolean do_unref)
-{
- if (do_unref)
- g_object_unref (eth->columns[idx]);
-
- memmove (
- &eth->columns[idx], &eth->columns[idx + 1],
- sizeof (ETableCol *) * (eth->col_count - idx - 1));
- eth->col_count--;
-}
-
-static void
-eth_finalize (GObject *object)
-{
- ETableHeader *eth = E_TABLE_HEADER (object);
- const gint cols = eth->col_count;
- gint i;
-
- if (eth->sort_info) {
- if (eth->sort_info_group_change_id)
- g_signal_handler_disconnect (
- eth->sort_info,
- eth->sort_info_group_change_id);
- g_object_unref (eth->sort_info);
- eth->sort_info = NULL;
- }
-
- if (eth->idle)
- g_source_remove (eth->idle);
- eth->idle = 0;
-
- if (eth->change_queue) {
- g_slist_foreach (eth->change_queue, (GFunc) g_free, NULL);
- g_slist_free (eth->change_queue);
- eth->change_queue = NULL;
- }
-
- /*
- * Destroy columns
- */
- for (i = cols - 1; i >= 0; i--) {
- eth_do_remove (eth, i, TRUE);
- }
- g_free (eth->columns);
-
- eth->col_count = 0;
- eth->columns = NULL;
-
- /* Chain up to parent's finalize() method. */
- G_OBJECT_CLASS (e_table_header_parent_class)->finalize (object);
-}
-
-static void
-eth_group_info_changed (ETableSortInfo *info,
- ETableHeader *eth)
-{
- enqueue (eth, -1, eth->nominal_width);
-}
-
-static void
-eth_set_property (GObject *object,
- guint property_id,
- const GValue *val,
- GParamSpec *pspec)
-{
- ETableHeader *eth = E_TABLE_HEADER (object);
-
- switch (property_id) {
- case PROP_WIDTH:
- eth->nominal_width = g_value_get_double (val);
- enqueue (eth, -1, eth->nominal_width);
- break;
- case PROP_WIDTH_EXTRAS:
- eth->width_extras = g_value_get_double (val);
- enqueue (eth, -1, eth->nominal_width);
- break;
- case PROP_SORT_INFO:
- if (eth->sort_info) {
- if (eth->sort_info_group_change_id)
- g_signal_handler_disconnect (
- eth->sort_info,
- eth->sort_info_group_change_id);
- g_object_unref (eth->sort_info);
- }
- eth->sort_info = E_TABLE_SORT_INFO (g_value_get_object (val));
- if (eth->sort_info) {
- g_object_ref (eth->sort_info);
- eth->sort_info_group_change_id = g_signal_connect (
- eth->sort_info, "group_info_changed",
- G_CALLBACK (eth_group_info_changed), eth);
- }
- enqueue (eth, -1, eth->nominal_width);
- break;
- default:
- break;
- }
-}
-
-static void
-eth_get_property (GObject *object,
- guint property_id,
- GValue *val,
- GParamSpec *pspec)
-{
- ETableHeader *eth = E_TABLE_HEADER (object);
-
- switch (property_id) {
- case PROP_SORT_INFO:
- g_value_set_object (val, eth->sort_info);
- break;
- case PROP_WIDTH:
- g_value_set_double (val, eth->nominal_width);
- break;
- case PROP_WIDTH_EXTRAS:
- g_value_set_double (val, eth->width_extras);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
- break;
- }
-}
-
-static void
-e_table_header_class_init (ETableHeaderClass *class)
-{
- GObjectClass *object_class = G_OBJECT_CLASS (class);
-
- object_class->finalize = eth_finalize;
- object_class->set_property = eth_set_property;
- object_class->get_property = eth_get_property;
-
- g_object_class_install_property (
- object_class,
- PROP_WIDTH,
- g_param_spec_double (
- "width", "Width", "Width",
- 0.0, G_MAXDOUBLE, 0.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property (
- object_class,
- PROP_WIDTH_EXTRAS,
- g_param_spec_double (
- "width_extras",
- "Width of Extras",
- "Width of Extras",
- 0.0, G_MAXDOUBLE, 0.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property (
- object_class,
- PROP_SORT_INFO,
- g_param_spec_object (
- "sort_info",
- "Sort Info",
- "Sort Info",
- E_TYPE_TABLE_SORT_INFO,
- G_PARAM_READWRITE));
-
- eth_signals[STRUCTURE_CHANGE] = g_signal_new (
- "structure_change",
- G_TYPE_FROM_CLASS (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (ETableHeaderClass, structure_change),
- (GSignalAccumulator) NULL, NULL,
- g_cclosure_marshal_VOID__VOID,
- G_TYPE_NONE, 0);
-
- eth_signals[DIMENSION_CHANGE] = g_signal_new (
- "dimension_change",
- G_TYPE_FROM_CLASS (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (ETableHeaderClass, dimension_change),
- (GSignalAccumulator) NULL, NULL,
- g_cclosure_marshal_VOID__INT,
- G_TYPE_NONE, 1,
- G_TYPE_INT);
-
- eth_signals[EXPANSION_CHANGE] = g_signal_new (
- "expansion_change",
- G_TYPE_FROM_CLASS (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (ETableHeaderClass, expansion_change),
- (GSignalAccumulator) NULL, NULL,
- g_cclosure_marshal_VOID__VOID,
- G_TYPE_NONE, 0);
-
- eth_signals[REQUEST_WIDTH] = g_signal_new (
- "request_width",
- G_TYPE_FROM_CLASS (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (ETableHeaderClass, request_width),
- (GSignalAccumulator) NULL, NULL,
- e_marshal_INT__INT,
- G_TYPE_INT, 1,
- G_TYPE_INT);
-
- class->structure_change = NULL;
- class->dimension_change = NULL;
- class->expansion_change = NULL;
- class->request_width = NULL;
-}
-
-static void
-e_table_header_init (ETableHeader *eth)
-{
- eth->col_count = 0;
- eth->width = 0;
-
- eth->sort_info = NULL;
- eth->sort_info_group_change_id = 0;
-
- eth->columns = NULL;
-
- eth->change_queue = NULL;
- eth->change_tail = NULL;
-
- eth->width_extras = 0;
-}
-
-/**
- * e_table_header_new:
- *
- * Returns: A new @ETableHeader object.
- */
-ETableHeader *
-e_table_header_new (void)
-{
-
- return g_object_new (E_TYPE_TABLE_HEADER, NULL);
-}
-
-static void
-eth_update_offsets (ETableHeader *eth)
-{
- gint i;
- gint x = 0;
-
- for (i = 0; i < eth->col_count; i++) {
- ETableCol *etc = eth->columns[i];
-
- etc->x = x;
- x += etc->width;
- }
-}
-
-static void
-eth_do_insert (ETableHeader *eth,
- gint pos,
- ETableCol *val)
-{
- memmove (
- &eth->columns[pos + 1], &eth->columns[pos],
- sizeof (ETableCol *) * (eth->col_count - pos));
- eth->columns[pos] = val;
- eth->col_count++;
-}
-
-/**
- * e_table_header_add_column:
- * @eth: the table header to add the column to.
- * @tc: the ETableCol definition
- * @pos: position where the ETableCol will go.
- *
- * This function adds the @tc ETableCol definition into the @eth ETableHeader
- * at position @pos. This is the way you add new ETableCols to the
- * ETableHeader. The header will assume ownership of the @tc; you should not
- * unref it after you add it.
- *
- * This function will emit the "structure_change" signal on the @eth object.
- * The ETableCol is assumed
- */
-void
-e_table_header_add_column (ETableHeader *eth,
- ETableCol *tc,
- gint pos)
-{
- g_return_if_fail (eth != NULL);
- g_return_if_fail (E_IS_TABLE_HEADER (eth));
- g_return_if_fail (tc != NULL);
- g_return_if_fail (E_IS_TABLE_COL (tc));
- g_return_if_fail (pos >= -1 && pos <= eth->col_count);
-
- if (pos == -1)
- pos = eth->col_count;
- eth->columns = g_realloc (
- eth->columns, sizeof (ETableCol *) * (eth->col_count + 1));
-
- /*
- * We are the primary owners of the column
- */
- g_object_ref (tc);
-
- eth_do_insert (eth, pos, tc);
-
- enqueue (eth, -1, eth->nominal_width);
- g_signal_emit (eth, eth_signals[STRUCTURE_CHANGE], 0);
-}
-
-/**
- * e_table_header_get_column:
- * @eth: the ETableHeader to query
- * @column: the column inside the @eth.
- *
- * Returns: The ETableCol at @column in the @eth object
- */
-ETableCol *
-e_table_header_get_column (ETableHeader *eth,
- gint column)
-{
- g_return_val_if_fail (eth != NULL, NULL);
- g_return_val_if_fail (E_IS_TABLE_HEADER (eth), NULL);
-
- if (column < 0)
- return NULL;
-
- if (column >= eth->col_count)
- return NULL;
-
- return eth->columns[column];
-}
-
-/**
- * e_table_header_get_column_by_col_id:
- * @eth: the ETableHeader to query
- * @col_id: the col_id to search for.
- *
- * Returns: The ETableCol with col_idx = @col_idx in the @eth object
- */
-ETableCol *
-e_table_header_get_column_by_col_idx (ETableHeader *eth,
- gint col_idx)
-{
- gint i;
- g_return_val_if_fail (eth != NULL, NULL);
- g_return_val_if_fail (E_IS_TABLE_HEADER (eth), NULL);
-
- for (i = 0; i < eth->col_count; i++) {
- if (eth->columns[i]->col_idx == col_idx) {
- return eth->columns[i];
- }
- }
-
- return NULL;
-}
-
-/**
- * e_table_header_count:
- * @eth: the ETableHeader to query
- *
- * Returns: the number of columns in this ETableHeader.
- */
-gint
-e_table_header_count (ETableHeader *eth)
-{
- g_return_val_if_fail (eth != NULL, 0);
- g_return_val_if_fail (E_IS_TABLE_HEADER (eth), 0);
-
- return eth->col_count;
-}
-
-/**
- * e_table_header_index:
- * @eth: the ETableHeader to query
- * @col: the column to fetch.
- *
- * ETableHeaders contain the visual list of columns that the user will
- * view. The visible columns will typically map to different columns
- * in the ETableModel (because the user reordered the data for
- * example).
- *
- * Returns: the column in the model that the @col column
- * in the ETableHeader points to. */
-gint
-e_table_header_index (ETableHeader *eth,
- gint col)
-{
- g_return_val_if_fail (eth != NULL, -1);
- g_return_val_if_fail (E_IS_TABLE_HEADER (eth), -1);
- g_return_val_if_fail (col >= 0 && col < eth->col_count, -1);
-
- return eth->columns[col]->col_idx;
-}
-
-/**
- * e_table_header_get_index_at:
- * @eth: the ETableHeader to query
- * @x_offset: a pixel count from the beginning of the ETableHeader
- *
- * This will return the ETableHeader column that would contain
- * the @x_offset pixel.
- *
- * Returns: the column that contains pixel @x_offset, or -1
- * if no column inside this ETableHeader contains that pixel.
- */
-gint
-e_table_header_get_index_at (ETableHeader *eth,
- gint x_offset)
-{
- gint i, total;
-
- g_return_val_if_fail (eth != NULL, 0);
- g_return_val_if_fail (E_IS_TABLE_HEADER (eth), 0);
-
- total = 0;
- for (i = 0; i < eth->col_count; i++) {
- total += eth->columns[i]->width;
-
- if (x_offset < total)
- return i;
- }
-
- return -1;
-}
-
-/**
- * e_table_header_get_columns:
- * @eth: The ETableHeader to query
- *
- * Returns: A NULL terminated array of the ETableCols
- * contained in the ETableHeader @eth. Note that every
- * returned ETableCol in the array has been referenced, to release
- * this information you need to g_free the buffer returned
- * and you need to g_object_unref every element returned
- */
-ETableCol **
-e_table_header_get_columns (ETableHeader *eth)
-{
- ETableCol **ret;
- gint i;
-
- g_return_val_if_fail (eth != NULL, NULL);
- g_return_val_if_fail (E_IS_TABLE_HEADER (eth), NULL);
-
- ret = g_new (ETableCol *, eth->col_count + 1);
- memcpy (ret, eth->columns, sizeof (ETableCol *) * eth->col_count);
- ret[eth->col_count] = NULL;
-
- for (i = 0; i < eth->col_count; i++) {
- g_object_ref (ret[i]);
- }
-
- return ret;
-}
-
-/**
- * e_table_header_get_selected:
- * @eth: The ETableHeader to query
- *
- * Returns: The number of selected columns in the @eth object.
- */
-gint
-e_table_header_get_selected (ETableHeader *eth)
-{
- gint i;
- gint selected = 0;
-
- g_return_val_if_fail (eth != NULL, 0);
- g_return_val_if_fail (E_IS_TABLE_HEADER (eth), 0);
-
- for (i = 0; i < eth->col_count; i++) {
- if (eth->columns[i]->selected)
- selected++;
- }
-
- return selected;
-}
-
-/**
- * e_table_header_total_width:
- * @eth: The ETableHeader to query
- *
- * Returns: the number of pixels used by the @eth object
- * when rendered on screen
- */
-gint
-e_table_header_total_width (ETableHeader *eth)
-{
- gint total, i;
-
- g_return_val_if_fail (eth != NULL, 0);
- g_return_val_if_fail (E_IS_TABLE_HEADER (eth), 0);
-
- total = 0;
- for (i = 0; i < eth->col_count; i++)
- total += eth->columns[i]->width;
-
- return total;
-}
-
-/**
- * e_table_header_min_width:
- * @eth: The ETableHeader to query
- *
- * Returns: the minimum number of pixels required by the @eth object.
- **/
-gint
-e_table_header_min_width (ETableHeader *eth)
-{
- gint total, i;
-
- g_return_val_if_fail (eth != NULL, 0);
- g_return_val_if_fail (E_IS_TABLE_HEADER (eth), 0);
-
- total = 0;
- for (i = 0; i < eth->col_count; i++)
- total += eth->columns[i]->min_width;
-
- return total;
-}
-
-/**
- * e_table_header_move:
- * @eth: The ETableHeader to operate on.
- * @source_index: the source column to move.
- * @target_index: the target location for the column
- *
- * This function moves the column @source_index to @target_index
- * inside the @eth ETableHeader. The signals "dimension_change"
- * and "structure_change" will be emmited
- */
-void
-e_table_header_move (ETableHeader *eth,
- gint source_index,
- gint target_index)
-{
- ETableCol *old;
-
- g_return_if_fail (eth != NULL);
- g_return_if_fail (E_IS_TABLE_HEADER (eth));
- g_return_if_fail (source_index >= 0);
- g_return_if_fail (target_index >= 0);
- g_return_if_fail (source_index < eth->col_count);
-
- /* Can be moved beyond the last item. */
- g_return_if_fail (target_index < eth->col_count + 1);
-
- if (source_index < target_index)
- target_index--;
-
- old = eth->columns[source_index];
- eth_do_remove (eth, source_index, FALSE);
- eth_do_insert (eth, target_index, old);
- eth_update_offsets (eth);
-
- g_signal_emit (eth, eth_signals[DIMENSION_CHANGE], 0, eth->width);
- g_signal_emit (eth, eth_signals[STRUCTURE_CHANGE], 0);
-}
-
-/**
- * e_table_header_remove:
- * @eth: The ETableHeader to operate on.
- * @idx: the index to the column to be removed.
- *
- * Removes the column at @idx position in the ETableHeader @eth.
- * This emmits the "structure_change" signal on the @eth object.
- */
-void
-e_table_header_remove (ETableHeader *eth,
- gint idx)
-{
- g_return_if_fail (eth != NULL);
- g_return_if_fail (E_IS_TABLE_HEADER (eth));
- g_return_if_fail (idx >= 0);
- g_return_if_fail (idx < eth->col_count);
-
- eth_do_remove (eth, idx, TRUE);
- enqueue (eth, -1, eth->nominal_width);
- g_signal_emit (eth, eth_signals[STRUCTURE_CHANGE], 0);
-}
-
-/*
- * FIXME: deprecated?
- */
-void
-e_table_header_set_selection (ETableHeader *eth,
- gboolean allow_selection)
-{
- g_return_if_fail (eth != NULL);
- g_return_if_fail (E_IS_TABLE_HEADER (eth));
-}
-
-static void
-eth_set_size (ETableHeader *eth,
- gint idx,
- gint size)
-{
- gdouble expansion;
- gdouble old_expansion;
- gint min_width;
- gint left_width;
- gint total_extra;
- gint expandable_count;
- gint usable_width;
- gint i;
- g_return_if_fail (eth != NULL);
- g_return_if_fail (E_IS_TABLE_HEADER (eth));
- g_return_if_fail (idx >= 0);
- g_return_if_fail (idx < eth->col_count);
-
- /* If this column is not resizable, don't do anything. */
- if (!eth->columns[idx]->resizable)
- return;
-
- expansion = 0;
- min_width = 0;
- left_width = 0;
- expandable_count = -1;
-
- /* Calculate usable area. */
- for (i = 0; i < idx; i++) {
- left_width += eth->columns[i]->width;
- }
- /* - 1 to account for the last pixel border. */
- usable_width = eth->width - left_width - 1;
-
- if (eth->sort_info)
- usable_width -= e_table_sort_info_grouping_get_count (
- eth->sort_info) * GROUP_INDENT;
-
- /* Calculate minimum_width of stuff on the right as well as
- * total usable expansion on the right.
- */
- for (; i < eth->col_count; i++) {
- min_width += eth->columns[i]->min_width + eth->width_extras;
- if (eth->columns[i]->resizable) {
- expansion += eth->columns[i]->expansion;
- expandable_count++;
- }
- }
- /* If there's no room for anything, don't change. */
- if (expansion == 0)
- return;
-
- /* (1) If none of the columns to the right are expandable, use
- * all the expansion space in this column.
- */
- if (expandable_count == 0) {
- eth->columns[idx]->expansion = expansion;
- for (i = idx + 1; i < eth->col_count; i++) {
- eth->columns[i]->expansion = 0;
- }
-
- g_signal_emit (eth, eth_signals[EXPANSION_CHANGE], 0);
- return;
- }
-
- total_extra = usable_width - min_width;
- /* If there's no extra space, set all expansions to 0. */
- if (total_extra <= 0) {
- for (i = idx; i < eth->col_count; i++) {
- eth->columns[i]->expansion = 0;
- }
- g_signal_emit (eth, eth_signals[EXPANSION_CHANGE], 0);
- return;
- }
-
- /* If you try to resize smaller than the minimum width, it
- * uses the minimum. */
- if (size < eth->columns[idx]->min_width + eth->width_extras)
- size = eth->columns[idx]->min_width + eth->width_extras;
-
- /* If all the extra space will be used up in this column, use
- * all the expansion and set all others to 0.
- */
- if (size >= total_extra + eth->columns[idx]->min_width + eth->width_extras) {
- eth->columns[idx]->expansion = expansion;
- for (i = idx + 1; i < eth->col_count; i++) {
- eth->columns[i]->expansion = 0;
- }
- g_signal_emit (eth, eth_signals[EXPANSION_CHANGE], 0);
- return;
- }
-
- /* The old_expansion used by columns to the right. */
- old_expansion = expansion;
- old_expansion -= eth->columns[idx]->expansion;
- /* Set the new expansion so that it will generate the desired size. */
- eth->columns[idx]->expansion =
- expansion * (((gdouble)(size - (eth->columns[idx]->min_width +
- eth->width_extras))) / ((gdouble) total_extra));
- /* The expansion left for the columns on the right. */
- expansion -= eth->columns[idx]->expansion;
-
- /* (2) If the old columns to the right didn't have any
- * expansion before, expand them evenly. old_expansion > 0 by
- * expansion = SUM(i=idx to col_count -1,
- * columns[i]->min_width) - columns[idx]->min_width) =
- * SUM(non-negatives).
- */
- if (old_expansion == 0) {
- for (i = idx + 1; i < eth->col_count; i++) {
- if (eth->columns[idx]->resizable) {
- /* expandable_count != 0 by (1) */
- eth->columns[i]->expansion = expansion / expandable_count;
- }
- }
- g_signal_emit (eth, eth_signals[EXPANSION_CHANGE], 0);
- return;
- }
-
- for (i = idx + 1; i < eth->col_count; i++) {
- if (eth->columns[idx]->resizable) {
- /* old_expansion != 0 by (2) */
- eth->columns[i]->expansion *= expansion / old_expansion;
- }
- }
- g_signal_emit (eth, eth_signals[EXPANSION_CHANGE], 0);
-}
-
-/**
- * e_table_header_col_diff:
- * @eth: the ETableHeader to query.
- * @start_col: the starting column
- * @end_col: the ending column.
- *
- * Computes the number of pixels between the columns @start_col and
- * @end_col.
- *
- * Returns: the number of pixels between @start_col and @end_col on the
- * @eth ETableHeader object
- */
-gint
-e_table_header_col_diff (ETableHeader *eth,
- gint start_col,
- gint end_col)
-{
- gint total, col;
-
- g_return_val_if_fail (eth != NULL, 0);
- g_return_val_if_fail (E_IS_TABLE_HEADER (eth), 0);
-
- if (start_col < 0)
- start_col = 0;
- if (end_col > eth->col_count)
- end_col = eth->col_count;
-
- total = 0;
- for (col = start_col; col < end_col; col++) {
-
- total += eth->columns[col]->width;
- }
-
- return total;
-}
-
-static void
-eth_calc_widths (ETableHeader *eth)
-{
- gint i;
- gint extra;
- gdouble expansion;
- gint last_position = 0;
- gdouble next_position = 0;
- gint last_resizable = -1;
- gint *widths;
- gboolean changed;
-
- widths = g_new (int, eth->col_count);
-
- /* - 1 to account for the last pixel border. */
- extra = eth->width - 1;
- expansion = 0;
- for (i = 0; i < eth->col_count; i++) {
- extra -= eth->columns[i]->min_width + eth->width_extras;
- if (eth->columns[i]->resizable && eth->columns[i]->expansion > 0)
- last_resizable = i;
- expansion += eth->columns[i]->resizable ? eth->columns[i]->expansion : 0;
- widths[i] = eth->columns[i]->min_width + eth->width_extras;
- }
- if (eth->sort_info)
- extra -= e_table_sort_info_grouping_get_count (eth->sort_info)
- * GROUP_INDENT;
- if (expansion != 0 && extra > 0) {
- for (i = 0; i < last_resizable; i++) {
- next_position +=
- extra * (eth->columns[i]->resizable ?
- eth->columns[i]->expansion : 0) / expansion;
- widths[i] += next_position - last_position;
- last_position = next_position;
- }
- widths[i] += extra - last_position;
- }
-
- changed = FALSE;
-
- for (i = 0; i < eth->col_count; i++) {
- if (eth->columns[i]->width != widths[i]) {
- changed = TRUE;
- eth->columns[i]->width = widths[i];
- }
- }
- g_free (widths);
- if (changed)
- g_signal_emit (eth, eth_signals[DIMENSION_CHANGE], 0, eth->width);
- eth_update_offsets (eth);
-}
-
-void
-e_table_header_update_horizontal (ETableHeader *eth)
-{
- gint i;
- gint cols;
-
- cols = eth->col_count;
-
- for (i = 0; i < cols; i++) {
- gint width = 0;
-
- g_signal_emit_by_name (
- eth, "request_width", i, &width);
- eth->columns[i]->min_width = width + 10;
- eth->columns[i]->expansion = 1;
- }
- enqueue (eth, -1, eth->nominal_width);
- g_signal_emit (eth, eth_signals[EXPANSION_CHANGE], 0);
-}
-
-gint
-e_table_header_prioritized_column (ETableHeader *eth)
-{
- gint best_model_col = 0;
- gint best_priority;
- gint i;
- gint count;
-
- count = e_table_header_count (eth);
- if (count == 0)
- return -1;
- best_priority = e_table_header_get_column (eth, 0)->priority;
- best_model_col = e_table_header_get_column (eth, 0)->col_idx;
- for (i = 1; i < count; i++) {
- gint priority = e_table_header_get_column (eth, i)->priority;
- if (priority > best_priority) {
- best_priority = priority;
- best_model_col = e_table_header_get_column (eth, i)->col_idx;
- }
- }
- return best_model_col;
-}
-
-ETableCol *
-e_table_header_prioritized_column_selected (ETableHeader *eth,
- ETableColCheckFunc check_func,
- gpointer user_data)
-{
- ETableCol *best_col = NULL;
- gint best_priority = G_MININT;
- gint i;
- gint count;
-
- count = e_table_header_count (eth);
- if (count == 0)
- return NULL;
- for (i = 1; i < count; i++) {
- ETableCol *col = e_table_header_get_column (eth, i);
- if (col) {
- if ((best_col == NULL || col->priority > best_priority)
- && check_func (col, user_data)) {
- best_priority = col->priority;
- best_col = col;
- }
- }
- }
- return best_col;
-}