aboutsummaryrefslogtreecommitdiffstats
path: root/e-util/e-table-selection-model.c
diff options
context:
space:
mode:
Diffstat (limited to 'e-util/e-table-selection-model.c')
-rw-r--r--e-util/e-table-selection-model.c384
1 files changed, 384 insertions, 0 deletions
diff --git a/e-util/e-table-selection-model.c b/e-util/e-table-selection-model.c
new file mode 100644
index 0000000000..abe4b0c3ff
--- /dev/null
+++ b/e-util/e-table-selection-model.c
@@ -0,0 +1,384 @@
+/*
+ * 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>
+ *
+ * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <string.h>
+
+#include <gdk/gdkkeysyms.h>
+
+#include <glib/gi18n.h>
+
+#include "e-table-selection-model.h"
+
+G_DEFINE_TYPE (ETableSelectionModel, e_table_selection_model, E_SELECTION_MODEL_ARRAY_TYPE)
+
+static gint etsm_get_row_count (ESelectionModelArray *esm);
+
+enum {
+ PROP_0,
+ PROP_MODEL,
+ PROP_HEADER
+};
+
+static void
+save_to_hash (gint model_row,
+ gpointer closure)
+{
+ ETableSelectionModel *etsm = closure;
+ const gchar *key = e_table_model_get_save_id (etsm->model, model_row);
+
+ g_hash_table_insert (etsm->hash, (gpointer) key, (gpointer) key);
+}
+
+static void
+free_hash (ETableSelectionModel *etsm)
+{
+ if (etsm->hash) {
+ g_hash_table_destroy (etsm->hash);
+ etsm->hash = NULL;
+ }
+ if (etsm->cursor_id)
+ g_free (etsm->cursor_id);
+ etsm->cursor_id = NULL;
+}
+
+static void
+model_pre_change (ETableModel *etm,
+ ETableSelectionModel *etsm)
+{
+ free_hash (etsm);
+
+ if (etsm->model && e_table_model_has_save_id (etsm->model)) {
+ gint cursor_row;
+
+ etsm->hash = g_hash_table_new_full (
+ g_str_hash, g_str_equal,
+ (GDestroyNotify) g_free,
+ (GDestroyNotify) NULL);
+ e_selection_model_foreach (E_SELECTION_MODEL (etsm), save_to_hash, etsm);
+
+ g_object_get (
+ etsm,
+ "cursor_row", &cursor_row,
+ NULL);
+ g_free (etsm->cursor_id);
+ if (cursor_row != -1)
+ etsm->cursor_id = e_table_model_get_save_id (etm, cursor_row);
+ else
+ etsm->cursor_id = NULL;
+ }
+}
+
+static gint
+model_changed_idle (ETableSelectionModel *etsm)
+{
+ ETableModel *etm = etsm->model;
+
+ e_selection_model_clear (E_SELECTION_MODEL (etsm));
+
+ if (etsm->cursor_id && etm && e_table_model_has_save_id (etm)) {
+ gint row_count = e_table_model_row_count (etm);
+ gint cursor_row = -1;
+ gint cursor_col = -1;
+ gint i;
+ e_selection_model_array_confirm_row_count (E_SELECTION_MODEL_ARRAY (etsm));
+ for (i = 0; i < row_count; i++) {
+ gchar *save_id = e_table_model_get_save_id (etm, i);
+ if (g_hash_table_lookup (etsm->hash, save_id))
+ e_selection_model_change_one_row (E_SELECTION_MODEL (etsm), i, TRUE);
+
+ if (etsm->cursor_id && !strcmp (etsm->cursor_id, save_id)) {
+ cursor_row = i;
+ cursor_col = e_selection_model_cursor_col (E_SELECTION_MODEL (etsm));
+ if (cursor_col == -1) {
+ if (etsm->eth) {
+ cursor_col = e_table_header_prioritized_column (etsm->eth);
+ } else
+ cursor_col = 0;
+ }
+ e_selection_model_change_cursor (E_SELECTION_MODEL (etsm), cursor_row, cursor_col);
+ g_free (etsm->cursor_id);
+ etsm->cursor_id = NULL;
+ }
+ g_free (save_id);
+ }
+ free_hash (etsm);
+ e_selection_model_cursor_changed (E_SELECTION_MODEL (etsm), cursor_row, cursor_col);
+ e_selection_model_selection_changed (E_SELECTION_MODEL (etsm));
+ }
+ etsm->model_changed_idle_id = 0;
+ return FALSE;
+}
+
+static void
+model_changed (ETableModel *etm,
+ ETableSelectionModel *etsm)
+{
+ e_selection_model_clear (E_SELECTION_MODEL (etsm));
+ if (!etsm->model_changed_idle_id && etm && e_table_model_has_save_id (etm)) {
+ etsm->model_changed_idle_id = g_idle_add_full (G_PRIORITY_HIGH, (GSourceFunc) model_changed_idle, etsm, NULL);
+ }
+}
+
+static void
+model_row_changed (ETableModel *etm,
+ gint row,
+ ETableSelectionModel *etsm)
+{
+ free_hash (etsm);
+}
+
+static void
+model_cell_changed (ETableModel *etm,
+ gint col,
+ gint row,
+ ETableSelectionModel *etsm)
+{
+ free_hash (etsm);
+}
+
+#if 1
+static void
+model_rows_inserted (ETableModel *etm,
+ gint row,
+ gint count,
+ ETableSelectionModel *etsm)
+{
+ e_selection_model_array_insert_rows (E_SELECTION_MODEL_ARRAY (etsm), row, count);
+ free_hash (etsm);
+}
+
+static void
+model_rows_deleted (ETableModel *etm,
+ gint row,
+ gint count,
+ ETableSelectionModel *etsm)
+{
+ e_selection_model_array_delete_rows (E_SELECTION_MODEL_ARRAY (etsm), row, count);
+ free_hash (etsm);
+}
+
+#else
+
+static void
+model_rows_inserted (ETableModel *etm,
+ gint row,
+ gint count,
+ ETableSelectionModel *etsm)
+{
+ model_changed (etm, etsm);
+}
+
+static void
+model_rows_deleted (ETableModel *etm,
+ gint row,
+ gint count,
+ ETableSelectionModel *etsm)
+{
+ model_changed (etm, etsm);
+}
+#endif
+
+inline static void
+add_model (ETableSelectionModel *etsm,
+ ETableModel *model)
+{
+ etsm->model = model;
+ if (model) {
+ g_object_ref (model);
+ etsm->model_pre_change_id = g_signal_connect (
+ model, "model_pre_change",
+ G_CALLBACK (model_pre_change), etsm);
+ etsm->model_changed_id = g_signal_connect (
+ model, "model_changed",
+ G_CALLBACK (model_changed), etsm);
+ etsm->model_row_changed_id = g_signal_connect (
+ model, "model_row_changed",
+ G_CALLBACK (model_row_changed), etsm);
+ etsm->model_cell_changed_id = g_signal_connect (
+ model, "model_cell_changed",
+ G_CALLBACK (model_cell_changed), etsm);
+ etsm->model_rows_inserted_id = g_signal_connect (
+ model, "model_rows_inserted",
+ G_CALLBACK (model_rows_inserted), etsm);
+ etsm->model_rows_deleted_id = g_signal_connect (
+ model, "model_rows_deleted",
+ G_CALLBACK (model_rows_deleted), etsm);
+ }
+ e_selection_model_array_confirm_row_count (E_SELECTION_MODEL_ARRAY (etsm));
+}
+
+inline static void
+drop_model (ETableSelectionModel *etsm)
+{
+ if (etsm->model) {
+ g_signal_handler_disconnect (
+ etsm->model,
+ etsm->model_pre_change_id);
+ g_signal_handler_disconnect (
+ etsm->model,
+ etsm->model_changed_id);
+ g_signal_handler_disconnect (
+ etsm->model,
+ etsm->model_row_changed_id);
+ g_signal_handler_disconnect (
+ etsm->model,
+ etsm->model_cell_changed_id);
+ g_signal_handler_disconnect (
+ etsm->model,
+ etsm->model_rows_inserted_id);
+ g_signal_handler_disconnect (
+ etsm->model,
+ etsm->model_rows_deleted_id);
+
+ g_object_unref (etsm->model);
+ }
+ etsm->model = NULL;
+}
+
+static void
+etsm_dispose (GObject *object)
+{
+ ETableSelectionModel *etsm;
+
+ etsm = E_TABLE_SELECTION_MODEL (object);
+
+ if (etsm->model_changed_idle_id)
+ g_source_remove (etsm->model_changed_idle_id);
+ etsm->model_changed_idle_id = 0;
+
+ drop_model (etsm);
+ free_hash (etsm);
+
+ /* Chain up to parent's dispose() method. */
+ G_OBJECT_CLASS (e_table_selection_model_parent_class)->dispose (object);
+}
+
+static void
+etsm_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ ETableSelectionModel *etsm = E_TABLE_SELECTION_MODEL (object);
+
+ switch (property_id) {
+ case PROP_MODEL:
+ g_value_set_object (value, etsm->model);
+ break;
+ case PROP_HEADER:
+ g_value_set_object (value, etsm->eth);
+ break;
+ }
+}
+
+static void
+etsm_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ ETableSelectionModel *etsm = E_TABLE_SELECTION_MODEL (object);
+
+ switch (property_id) {
+ case PROP_MODEL:
+ drop_model (etsm);
+ add_model (etsm, g_value_get_object (value) ? E_TABLE_MODEL (g_value_get_object (value)) : NULL);
+ break;
+ case PROP_HEADER:
+ etsm->eth = E_TABLE_HEADER (g_value_get_object (value));
+ break;
+ }
+}
+
+static void
+e_table_selection_model_init (ETableSelectionModel *selection)
+{
+ selection->model = NULL;
+ selection->hash = NULL;
+ selection->cursor_id = NULL;
+
+ selection->model_changed_idle_id = 0;
+}
+
+static void
+e_table_selection_model_class_init (ETableSelectionModelClass *class)
+{
+ GObjectClass *object_class;
+ ESelectionModelArrayClass *esma_class;
+
+ object_class = G_OBJECT_CLASS (class);
+ esma_class = E_SELECTION_MODEL_ARRAY_CLASS (class);
+
+ object_class->dispose = etsm_dispose;
+ object_class->get_property = etsm_get_property;
+ object_class->set_property = etsm_set_property;
+
+ esma_class->get_row_count = etsm_get_row_count;
+
+ g_object_class_install_property (
+ object_class,
+ PROP_MODEL,
+ g_param_spec_object (
+ "model",
+ "Model",
+ NULL,
+ E_TYPE_TABLE_MODEL,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (
+ object_class,
+ PROP_HEADER,
+ g_param_spec_object (
+ "header",
+ "Header",
+ NULL,
+ E_TYPE_TABLE_HEADER,
+ G_PARAM_READWRITE));
+}
+
+/**
+ * e_table_selection_model_new
+ *
+ * This routine creates a new #ETableSelectionModel.
+ *
+ * Returns: The new #ETableSelectionModel.
+ */
+ETableSelectionModel *
+e_table_selection_model_new (void)
+{
+ return g_object_new (E_TYPE_TABLE_SELECTION_MODEL, NULL);
+}
+
+static gint
+etsm_get_row_count (ESelectionModelArray *esma)
+{
+ ETableSelectionModel *etsm = E_TABLE_SELECTION_MODEL (esma);
+
+ if (etsm->model)
+ return e_table_model_row_count (etsm->model);
+ else
+ return 0;
+}