diff options
Diffstat (limited to 'mate-dictionary/libgdict/gdict-strategy-chooser.c')
| -rw-r--r-- | mate-dictionary/libgdict/gdict-strategy-chooser.c | 1092 |
1 files changed, 1092 insertions, 0 deletions
diff --git a/mate-dictionary/libgdict/gdict-strategy-chooser.c b/mate-dictionary/libgdict/gdict-strategy-chooser.c new file mode 100644 index 00000000..93df7073 --- /dev/null +++ b/mate-dictionary/libgdict/gdict-strategy-chooser.c @@ -0,0 +1,1092 @@ +/* gdict-strategy-chooser.c - display widget for strategy names + * + * Copyright (C) 2006 Emmanuele Bassi <[email protected]> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * 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, + */ + +/** + * SECTION:gdict-strategy-chooser + * @short_description: Display a list of matching strategies + * + * Each #GdictContext allows matching a word using a specific "matching + * strategy". The #GdictStrategyChooser widget queries a #GdictContext and + * displays the list of available matching strategies. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <stdarg.h> + +#include <gtk/gtk.h> +#include <glib/gi18n-lib.h> + +#include "gdict-strategy-chooser.h" +#include "gdict-utils.h" +#include "gdict-debug.h" +#include "gdict-private.h" +#include "gdict-enum-types.h" +#include "gdict-marshal.h" + +#define GDICT_STRATEGY_CHOOSER_GET_PRIVATE(obj) \ +(G_TYPE_INSTANCE_GET_PRIVATE ((obj), GDICT_TYPE_STRATEGY_CHOOSER, GdictStrategyChooserPrivate)) + +struct _GdictStrategyChooserPrivate +{ + GtkListStore *store; + + GtkWidget *treeview; + GtkWidget *clear_button; + GtkWidget *refresh_button; + GtkWidget *buttons_box; + + GdictContext *context; + gint results; + + guint start_id; + guint match_id; + guint end_id; + guint error_id; + + GdkCursor *busy_cursor; + + gchar *current_strat; + + guint is_searching : 1; +}; + +enum +{ + STRATEGY_NAME, + STRATEGY_ERROR +} StratType; + +enum +{ + STRAT_COLUMN_TYPE, + STRAT_COLUMN_NAME, + STRAT_COLUMN_DESCRIPTION, + STRAT_COLUMN_CURRENT, + + STRAT_N_COLUMNS +}; + +enum +{ + PROP_0, + + PROP_CONTEXT, + PROP_COUNT +}; + +enum +{ + STRATEGY_ACTIVATED, + CLOSED, + + LAST_SIGNAL +}; + +static guint db_chooser_signals[LAST_SIGNAL] = { 0 }; + +G_DEFINE_TYPE (GdictStrategyChooser, + gdict_strategy_chooser, + GTK_TYPE_VBOX); + + +static void +set_gdict_context (GdictStrategyChooser *chooser, + GdictContext *context) +{ + GdictStrategyChooserPrivate *priv; + + g_assert (GDICT_IS_STRATEGY_CHOOSER (chooser)); + priv = chooser->priv; + + if (priv->context) + { + if (priv->start_id) + { + GDICT_NOTE (CHOOSER, "Removing old context handlers"); + + g_signal_handler_disconnect (priv->context, priv->start_id); + g_signal_handler_disconnect (priv->context, priv->match_id); + g_signal_handler_disconnect (priv->context, priv->end_id); + + priv->start_id = 0; + priv->end_id = 0; + priv->match_id = 0; + } + + if (priv->error_id) + { + g_signal_handler_disconnect (priv->context, priv->error_id); + + priv->error_id = 0; + } + + GDICT_NOTE (CHOOSER, "Removing old context"); + + g_object_unref (G_OBJECT (priv->context)); + + priv->context = NULL; + priv->results = -1; + } + + if (!context) + return; + + if (!GDICT_IS_CONTEXT (context)) + { + g_warning ("Object of type '%s' instead of a GdictContext\n", + g_type_name (G_OBJECT_TYPE (context))); + return; + } + + GDICT_NOTE (CHOOSER, "Setting new context"); + + priv->context = g_object_ref (context); + priv->results = 0; +} + +static void +gdict_strategy_chooser_dispose (GObject *gobject) +{ + GdictStrategyChooser *chooser = GDICT_STRATEGY_CHOOSER (gobject); + GdictStrategyChooserPrivate *priv = chooser->priv; + + set_gdict_context (chooser, NULL); + + if (priv->busy_cursor) + { + gdk_cursor_unref (priv->busy_cursor); + priv->busy_cursor = NULL; + } + + if (priv->store) + { + g_object_unref (priv->store); + priv->store = NULL; + } + + G_OBJECT_CLASS (gdict_strategy_chooser_parent_class)->dispose (gobject); +} + +static void +gdict_strategy_chooser_finalize (GObject *gobject) +{ + GdictStrategyChooser *chooser = GDICT_STRATEGY_CHOOSER (gobject); + GdictStrategyChooserPrivate *priv = chooser->priv; + + g_free (priv->current_strat); + + G_OBJECT_CLASS (gdict_strategy_chooser_parent_class)->finalize (gobject); +} + +static void +gdict_strategy_chooser_set_property (GObject *gobject, + guint prop_id, + const GValue *value, + GParamSpec *pspec) +{ + GdictStrategyChooser *chooser = GDICT_STRATEGY_CHOOSER (gobject); + + switch (prop_id) + { + case PROP_CONTEXT: + set_gdict_context (chooser, g_value_get_object (value)); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec); + break; + } +} + +static void +gdict_strategy_chooser_get_property (GObject *gobject, + guint prop_id, + GValue *value, + GParamSpec *pspec) +{ + GdictStrategyChooser *chooser = GDICT_STRATEGY_CHOOSER (gobject); + + switch (prop_id) + { + case PROP_CONTEXT: + g_value_set_object (value, chooser->priv->context); + break; + case PROP_COUNT: + g_value_set_int (value, chooser->priv->results); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec); + break; + } +} + +static void +row_activated_cb (GtkTreeView *treeview, + GtkTreePath *path, + GtkTreeViewColumn *column, + gpointer user_data) +{ + GdictStrategyChooser *chooser = GDICT_STRATEGY_CHOOSER (user_data); + GdictStrategyChooserPrivate *priv = chooser->priv; + GtkTreeIter iter; + gchar *db_name, *db_desc; + gboolean valid; + + valid = gtk_tree_model_get_iter (GTK_TREE_MODEL (priv->store), + &iter, + path); + if (!valid) + { + g_warning ("Invalid iterator found"); + return; + } + + gtk_tree_model_get (GTK_TREE_MODEL (priv->store), &iter, + STRAT_COLUMN_NAME, &db_name, + STRAT_COLUMN_DESCRIPTION, &db_desc, + -1); + if (db_name && db_desc) + { + g_signal_emit (chooser, db_chooser_signals[STRATEGY_ACTIVATED], 0, + db_name, db_desc); + } + else + { + gchar *row = gtk_tree_path_to_string (path); + + g_warning ("Row %s activated, but no strategy attached", row); + g_free (row); + } + + g_free (db_name); + g_free (db_desc); +} + +static void +refresh_button_clicked_cb (GtkWidget *widget, + gpointer user_data) +{ + GdictStrategyChooser *chooser = GDICT_STRATEGY_CHOOSER (user_data); + + gdict_strategy_chooser_refresh (chooser); +} + +static void +clear_button_clicked_cb (GtkWidget *widget, + gpointer user_data) +{ + GdictStrategyChooser *chooser = GDICT_STRATEGY_CHOOSER (user_data); + + gdict_strategy_chooser_clear (chooser); +} + +static GObject * +gdict_strategy_chooser_constructor (GType type, + guint n_params, + GObjectConstructParam *params) +{ + GObject *object; + GdictStrategyChooser *chooser; + GdictStrategyChooserPrivate *priv; + GtkWidget *sw; + GtkCellRenderer *renderer; + GtkTreeViewColumn *column; + GtkWidget *hbox; + + object = G_OBJECT_CLASS (gdict_strategy_chooser_parent_class)->constructor (type, + n_params, + params); + + chooser = GDICT_STRATEGY_CHOOSER (object); + priv = chooser->priv; + + gtk_widget_push_composite_child (); + + sw = gtk_scrolled_window_new (NULL, NULL); + gtk_widget_set_composite_name (sw, "gdict-strategy-chooser-scrolled-window"); + gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw), + GTK_POLICY_AUTOMATIC, + GTK_POLICY_AUTOMATIC); + gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw), + GTK_SHADOW_IN); + gtk_box_pack_start (GTK_BOX (chooser), sw, TRUE, TRUE, 0); + gtk_widget_show (sw); + + renderer = gtk_cell_renderer_text_new (); + column = gtk_tree_view_column_new_with_attributes ("strategies", + renderer, + "text", STRAT_COLUMN_DESCRIPTION, + "weight", STRAT_COLUMN_CURRENT, + NULL); + priv->treeview = gtk_tree_view_new (); + gtk_widget_set_composite_name (priv->treeview, "gdict-strategy-chooser-treeview"); + gtk_tree_view_set_model (GTK_TREE_VIEW (priv->treeview), + GTK_TREE_MODEL (priv->store)); + gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (priv->treeview), FALSE); + gtk_tree_view_append_column (GTK_TREE_VIEW (priv->treeview), column); + g_signal_connect (priv->treeview, "row-activated", + G_CALLBACK (row_activated_cb), chooser); + gtk_container_add (GTK_CONTAINER (sw), priv->treeview); + gtk_widget_show (priv->treeview); + + hbox = gtk_hbox_new (FALSE, 0); + + priv->refresh_button = gtk_button_new (); + gtk_button_set_image (GTK_BUTTON (priv->refresh_button), + gtk_image_new_from_stock (GTK_STOCK_REFRESH, + GTK_ICON_SIZE_SMALL_TOOLBAR)); + g_signal_connect (priv->refresh_button, "clicked", + G_CALLBACK (refresh_button_clicked_cb), + chooser); + gtk_box_pack_start (GTK_BOX (hbox), priv->refresh_button, FALSE, FALSE, 0); + gtk_widget_show (priv->refresh_button); + gtk_widget_set_tooltip_text (priv->refresh_button, + _("Reload the list of available strategies")); + + priv->clear_button = gtk_button_new (); + gtk_button_set_image (GTK_BUTTON (priv->clear_button), + gtk_image_new_from_stock (GTK_STOCK_CLEAR, + GTK_ICON_SIZE_SMALL_TOOLBAR)); + g_signal_connect (priv->clear_button, "clicked", + G_CALLBACK (clear_button_clicked_cb), + chooser); + gtk_box_pack_start (GTK_BOX (hbox), priv->clear_button, FALSE, FALSE, 0); + gtk_widget_show (priv->clear_button); + gtk_widget_set_tooltip_text (priv->clear_button, + _("Clear the list of available strategies")); + + gtk_box_pack_end (GTK_BOX (chooser), hbox, FALSE, FALSE, 0); + gtk_widget_show (hbox); + + gtk_widget_pop_composite_child (); + + return object; +} + +static void +gdict_strategy_chooser_class_init (GdictStrategyChooserClass *klass) +{ + GObjectClass *gobject_class = G_OBJECT_CLASS (klass); + + gobject_class->finalize = gdict_strategy_chooser_finalize; + gobject_class->dispose = gdict_strategy_chooser_dispose; + gobject_class->set_property = gdict_strategy_chooser_set_property; + gobject_class->get_property = gdict_strategy_chooser_get_property; + gobject_class->constructor = gdict_strategy_chooser_constructor; + + /** + * GdictStrategyChooser:context: + * + * The #GdictContext object used to retrieve the list of strategies. + */ + g_object_class_install_property (gobject_class, + PROP_CONTEXT, + g_param_spec_object ("context", + "Context", + "The GdictContext object used to get the list of strategies", + GDICT_TYPE_CONTEXT, + (G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT))); + + /** + * GdictStrategyChooser::strategy-activated: + * @chooser: the widget that received the signal + * @name: the name of the activated strategy + * @description: the description of the activate strategy + * + * The ::strategy-activated signal is emitted each time the user + * activates a strategy in the @chooser, either by double click or + * using the keyboard. + */ + db_chooser_signals[STRATEGY_ACTIVATED] = + g_signal_new ("strategy-activated", + G_OBJECT_CLASS_TYPE (gobject_class), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (GdictStrategyChooserClass, strategy_activated), + NULL, NULL, + gdict_marshal_VOID__STRING_STRING, + G_TYPE_NONE, 2, + G_TYPE_STRING, + G_TYPE_STRING); + + g_type_class_add_private (gobject_class, sizeof (GdictStrategyChooserPrivate)); +} + +static void +gdict_strategy_chooser_init (GdictStrategyChooser *chooser) +{ + GdictStrategyChooserPrivate *priv; + + chooser->priv = priv = GDICT_STRATEGY_CHOOSER_GET_PRIVATE (chooser); + + priv->results = -1; + priv->context = NULL; + + priv->store = gtk_list_store_new (STRAT_N_COLUMNS, + G_TYPE_INT, /* strat_type */ + G_TYPE_STRING, /* strat_name */ + G_TYPE_STRING, /* strat_desc */ + G_TYPE_INT /* strat_current */); + + priv->start_id = 0; + priv->end_id = 0; + priv->match_id = 0; + priv->error_id = 0; +} + +/** + * gdict_strategy_chooser_new: + * + * Creates a new #GdictStrategyChooser. Use this widget to show a list + * of matching strategies available on a dictionary source represented + * by a #GdictContext, set with gdict_strategy_chooser_set_context(). + * + * Return value: the newly created #GdictStrategyChooser widget + * + * Since: 0.9 + */ +GtkWidget * +gdict_strategy_chooser_new (void) +{ + return g_object_new (GDICT_TYPE_STRATEGY_CHOOSER, NULL); +} + +/** + * gdict_strategy_chooser_new_with_context: + * @context: a #GdictContext + * + * Creates a new #GdictStrategyChooser widget, using @context as the + * representation of a dictionary source. + * + * Return value: the newly created #GdictStrategyChooser widget + * + * Since: 0.9 + */ +GtkWidget * +gdict_strategy_chooser_new_with_context (GdictContext *context) +{ + g_return_val_if_fail (GDICT_IS_CONTEXT (context), NULL); + + return g_object_new (GDICT_TYPE_STRATEGY_CHOOSER, + "context", context, + NULL); +} + +/** + * gdict_strategy_chooser_get_context: + * @chooser: a #GdictStrategyChooser + * + * Retrieves the #GdictContext used by @chooser. + * + * Return value: a #GdictContext + * + * Since: + */ +GdictContext * +gdict_strategy_chooser_get_context (GdictStrategyChooser *chooser) +{ + g_return_val_if_fail (GDICT_IS_STRATEGY_CHOOSER (chooser), NULL); + + return chooser->priv->context; +} + +/** + * gdict_strategy_chooser_set_context: + * @chooser: a #GdictStrategyChooser + * @context: a #GdictContext, or %NULL to unset the context + * + * Sets the #GdictContext to be used by @chooser to retrieve the + * list of matching strategies. + * + * Since: 0.9 + */ +void +gdict_strategy_chooser_set_context (GdictStrategyChooser *chooser, + GdictContext *context) +{ + g_return_if_fail (GDICT_IS_STRATEGY_CHOOSER (chooser)); + g_return_if_fail (context == NULL || GDICT_IS_CONTEXT (context)); + + set_gdict_context (chooser, context); + + g_object_notify (G_OBJECT (chooser), "context"); +} + +/** + * gdict_strategy_chooser_get_strategies: + * @chooser: a #GdictStrategyChooser + * @length: return location for the length of the returned string list + * + * Retrieves the list of matching strategies available. + * + * Return value: a string vector containing the names of the matching + * strategies. Use g_strfreev() to deallocate the memory when done + * + * Since:0.9 + */ +gchar ** +gdict_strategy_chooser_get_strategies (GdictStrategyChooser *chooser, + gsize *length) +{ + GdictStrategyChooserPrivate *priv; + GtkTreeIter iter; + gchar **retval; + gsize i; + + g_return_val_if_fail (GDICT_IS_STRATEGY_CHOOSER (chooser), NULL); + + priv = chooser->priv; + + if (!gtk_tree_model_get_iter_first (GTK_TREE_MODEL (priv->store), &iter)) + return NULL; + + i = 0; + retval = g_new (gchar*, priv->results); + + do + { + gchar *strat_name; + + gtk_tree_model_get (GTK_TREE_MODEL (priv->store), &iter, + STRAT_COLUMN_NAME, &strat_name, + -1); + + retval[i++] = strat_name; + } + while (gtk_tree_model_iter_next (GTK_TREE_MODEL (priv->store), &iter)); + + retval[i] = NULL; + + if (length) + *length = i; + + return retval; +} + +/** + * gdict_strategy_chooser_has_strategy: + * @chooser: a #GdictStrategyChooser + * @strategy: a strategy name + * + * Checks whether @strategy is available in the list of matching + * strategies displayed by @chooser. + * + * Return value: %TRUE if the strategy was found, %FALSE otherwise + * + * Since: 0.9 + */ +gboolean +gdict_strategy_chooser_has_strategy (GdictStrategyChooser *chooser, + const gchar *strategy) +{ + GdictStrategyChooserPrivate *priv; + GtkTreeIter iter; + gboolean retval; + + g_return_val_if_fail (GDICT_IS_STRATEGY_CHOOSER (chooser), FALSE); + g_return_val_if_fail (strategy != NULL, FALSE); + + priv = chooser->priv; + + if (!gtk_tree_model_get_iter_first (GTK_TREE_MODEL (priv->store), &iter)) + return FALSE; + + retval = FALSE; + + do + { + gchar *strat_name; + + gtk_tree_model_get (GTK_TREE_MODEL (priv->store), &iter, + STRAT_COLUMN_NAME, &strat_name, + -1); + + if (strcmp (strat_name, strategy) == 0) + { + retval = TRUE; + g_free (strat_name); + break; + } + + g_free (strat_name); + } + while (gtk_tree_model_iter_next (GTK_TREE_MODEL (priv->store), &iter)); + + return retval; +} + +/** + * gdict_strategy_chooser_count_strategies: + * @chooser: a #GdictStrategyChooser + * + * Returns the number of strategies found. + * + * Return value: the number of strategies or -1 if case of error + * + * Since: + */ +gint +gdict_strategy_chooser_count_strategies (GdictStrategyChooser *chooser) +{ + g_return_val_if_fail (GDICT_IS_STRATEGY_CHOOSER (chooser), -1); + + return chooser->priv->results; +} + +static void +lookup_start_cb (GdictContext *context, + gpointer user_data) +{ + GdictStrategyChooser *chooser = GDICT_STRATEGY_CHOOSER (user_data); + GdictStrategyChooserPrivate *priv = chooser->priv; + + if (!priv->busy_cursor) + priv->busy_cursor = gdk_cursor_new (GDK_WATCH); + + if (gtk_widget_get_window (GTK_WIDGET (chooser))) + gdk_window_set_cursor (gtk_widget_get_window (GTK_WIDGET (chooser)), priv->busy_cursor); + + priv->is_searching = TRUE; +} + +static void +lookup_end_cb (GdictContext *context, + gpointer user_data) +{ + GdictStrategyChooser *chooser = GDICT_STRATEGY_CHOOSER (user_data); + GdictStrategyChooserPrivate *priv = chooser->priv; + + if (gtk_widget_get_window (GTK_WIDGET (chooser))) + gdk_window_set_cursor (gtk_widget_get_window (GTK_WIDGET (chooser)), NULL); + + priv->is_searching = FALSE; +} + +static void +strategy_found_cb (GdictContext *context, + GdictStrategy *strategy, + gpointer user_data) +{ + GdictStrategyChooser *chooser = GDICT_STRATEGY_CHOOSER (user_data); + GdictStrategyChooserPrivate *priv = chooser->priv; + const gchar *name, *description; + GtkTreeIter iter; + gint weight = PANGO_WEIGHT_NORMAL; + + name = gdict_strategy_get_name (strategy); + description = gdict_strategy_get_description (strategy); + + GDICT_NOTE (CHOOSER, "STRATEGY: `%s' (`%s')", + name, + description); + + if (priv->current_strat && !strcmp (priv->current_strat, name)) + weight = PANGO_WEIGHT_BOLD; + + gtk_list_store_append (priv->store, &iter); + gtk_list_store_set (priv->store, &iter, + STRAT_COLUMN_TYPE, STRATEGY_NAME, + STRAT_COLUMN_NAME, name, + STRAT_COLUMN_DESCRIPTION, description, + STRAT_COLUMN_CURRENT, weight, + -1); + + priv->results += 1; +} + +static void +error_cb (GdictContext *context, + const GError *error, + gpointer user_data) +{ + GdictStrategyChooser *chooser = GDICT_STRATEGY_CHOOSER (user_data); + + if (gtk_widget_get_window (GTK_WIDGET (chooser))) + gdk_window_set_cursor (gtk_widget_get_window (GTK_WIDGET (chooser)), NULL); + + chooser->priv->is_searching = FALSE; + chooser->priv->results = 0; +} + +/** + * gdict_strategy_chooser_refresh: + * @chooser: a #GdictStrategyChooser + * + * Reloads the list of available strategies. + * + * Since: 0.10 + */ +void +gdict_strategy_chooser_refresh (GdictStrategyChooser *chooser) +{ + GdictStrategyChooserPrivate *priv; + GError *db_error; + + g_return_if_fail (GDICT_IS_STRATEGY_CHOOSER (chooser)); + + priv = chooser->priv; + + if (!priv->context) + { + g_warning ("Attempting to retrieve the available strategies, but " + "no GdictContext has been set. Use gdict_strategy_chooser_set_context() " + "before invoking gdict_strategy_chooser_refresh()."); + return; + } + + if (priv->is_searching) + return; + + gdict_strategy_chooser_clear (chooser); + + if (!priv->start_id) + { + priv->start_id = g_signal_connect (priv->context, "lookup-start", + G_CALLBACK (lookup_start_cb), + chooser); + priv->match_id = g_signal_connect (priv->context, "strategy-found", + G_CALLBACK (strategy_found_cb), + chooser); + priv->end_id = g_signal_connect (priv->context, "lookup-end", + G_CALLBACK (lookup_end_cb), + chooser); + } + + if (!priv->error_id) + priv->error_id = g_signal_connect (priv->context, "error", + G_CALLBACK (error_cb), + chooser); + + db_error = NULL; + gdict_context_lookup_strategies (priv->context, &db_error); + if (db_error) + { + GtkTreeIter iter; + + gtk_list_store_append (priv->store, &iter); + gtk_list_store_set (priv->store, &iter, + STRAT_COLUMN_TYPE, STRATEGY_ERROR, + STRAT_COLUMN_NAME, _("Error while matching"), + STRAT_COLUMN_DESCRIPTION, NULL, + -1); + + g_warning ("Error while retrieving strategies: %s", + db_error->message); + + g_error_free (db_error); + } +} + +/** + * gdict_strategy_chooser_clear: + * @chooser: a #GdictStrategyChooser + * + * Clears @chooser. + * + * Since: 0.10 + */ +void +gdict_strategy_chooser_clear (GdictStrategyChooser *chooser) +{ + GdictStrategyChooserPrivate *priv; + + g_return_if_fail (GDICT_IS_STRATEGY_CHOOSER (chooser)); + + priv = chooser->priv; + + gtk_tree_view_set_model (GTK_TREE_VIEW (priv->treeview), NULL); + + gtk_list_store_clear (priv->store); + priv->results = 0; + + gtk_tree_view_set_model (GTK_TREE_VIEW (priv->treeview), + GTK_TREE_MODEL (priv->store)); +} + +typedef struct +{ + gchar *strat_name; + GdictStrategyChooser *chooser; + + guint found : 1; + guint do_select : 1; + guint do_activate : 1; +} SelectData; + +static gboolean +scan_for_strat_name (GtkTreeModel *model, + GtkTreePath *path, + GtkTreeIter *iter, + gpointer user_data) +{ + SelectData *select_data = user_data; + gchar *strat_name = NULL; + + if (!select_data) + return TRUE; + + gtk_tree_model_get (model, iter, STRAT_COLUMN_NAME, &strat_name, -1); + if (!strat_name) + return FALSE; + + if (strcmp (strat_name, select_data->strat_name) == 0) + { + GtkTreeView *tree_view; + GtkTreeSelection *selection; + + select_data->found = TRUE; + + tree_view = GTK_TREE_VIEW (select_data->chooser->priv->treeview); + if (select_data->do_activate) + { + GtkTreeViewColumn *column; + + gtk_list_store_set (GTK_LIST_STORE (model), iter, + STRAT_COLUMN_CURRENT, PANGO_WEIGHT_BOLD, + -1); + + column = gtk_tree_view_get_column (tree_view, 2); + gtk_tree_view_row_activated (tree_view, path, column); + } + + selection = gtk_tree_view_get_selection (tree_view); + if (select_data->do_select) + gtk_tree_selection_select_path (selection, path); + else + gtk_tree_selection_unselect_path (selection, path); + } + else + { + gtk_list_store_set (GTK_LIST_STORE (model), iter, + STRAT_COLUMN_CURRENT, PANGO_WEIGHT_NORMAL, + -1); + } + + g_free (strat_name); + + return FALSE; +} + +/** + * gdict_strategy_chooser_select_strategy: + * @chooser: a #GdictStrategyChooser + * @strat_name: the name of the strategy to select + * + * Selects @strat_name, if available. + * + * Return value: %TRUE if the matching strategy was found and selected + * + * Since: 0.10 + */ +gboolean +gdict_strategy_chooser_select_strategy (GdictStrategyChooser *chooser, + const gchar *strat_name) +{ + GdictStrategyChooserPrivate *priv; + SelectData data; + gboolean retval; + + g_return_val_if_fail (GDICT_IS_STRATEGY_CHOOSER (chooser), FALSE); + g_return_val_if_fail (strat_name != NULL, FALSE); + + priv = chooser->priv; + + data.strat_name = g_strdup (strat_name); + data.chooser = chooser; + data.found = FALSE; + data.do_select = TRUE; + data.do_activate = FALSE; + + gtk_tree_model_foreach (GTK_TREE_MODEL (priv->store), + scan_for_strat_name, + &data); + + retval = data.found; + + g_free (data.strat_name); + + return retval; +} + +/** + * gdict_strategy_chooser_unselect_strategy: + * @chooser: a #GdictStrategyChooser + * @strat_name: the name of the strategy to unselect + * + * Unselects @strat_name from the list. + * + * Return value: %TRUE if the matching strategy was found and successfully + * unselected + * + * Since: 0.10 + */ +gboolean +gdict_strategy_chooser_unselect_strategy (GdictStrategyChooser *chooser, + const gchar *strat_name) +{ + GdictStrategyChooserPrivate *priv; + SelectData data; + gboolean retval; + + g_return_val_if_fail (GDICT_IS_STRATEGY_CHOOSER (chooser), FALSE); + g_return_val_if_fail (strat_name != NULL, FALSE); + + priv = chooser->priv; + + data.strat_name = g_strdup (strat_name); + data.chooser = chooser; + data.found = FALSE; + data.do_select = FALSE; + data.do_activate = FALSE; + + gtk_tree_model_foreach (GTK_TREE_MODEL (priv->store), + scan_for_strat_name, + &data); + + retval = data.found; + + g_free (data.strat_name); + + return retval; +} + +/** + * gdict_strategy_chooser_set_current_strategy: + * @chooser: a #GdictStrategyChooser + * @strat_name: the name of the matching strategy + * + * Sets @strat_name as the current matching strategy. + * + * Return value: %TRUE if the matching strategy was found + * + * Since: 0.10 + */ +gboolean +gdict_strategy_chooser_set_current_strategy (GdictStrategyChooser *chooser, + const gchar *strat_name) +{ + GdictStrategyChooserPrivate *priv; + SelectData data; + gboolean retval; + + g_return_val_if_fail (GDICT_IS_STRATEGY_CHOOSER (chooser), FALSE); + g_return_val_if_fail (strat_name != NULL, FALSE); + + priv = chooser->priv; + + if (priv->current_strat && !strcmp (priv->current_strat, strat_name)) + return TRUE; + + data.strat_name = g_strdup (strat_name); + data.chooser = chooser; + data.found = FALSE; + data.do_select = TRUE; + data.do_activate = TRUE; + + gtk_tree_model_foreach (GTK_TREE_MODEL (priv->store), + scan_for_strat_name, + &data); + + retval = data.found; + + if (data.found) + { + g_free (priv->current_strat); + priv->current_strat = data.strat_name; + } + else + g_free (data.strat_name); + + return retval; +} + +/** + * gdict_strategy_chooser_get_current_strategy: + * @chooser: a #GdictStrategyChooser + * + * Retrieves the current matching strategy. + * + * Return value: a newly allocated string containing the name of + * the current matching strategy + * + * Since: 0.10 + */ +gchar * +gdict_strategy_chooser_get_current_strategy (GdictStrategyChooser *chooser) +{ + GdictStrategyChooserPrivate *priv; + GtkTreeSelection *selection; + GtkTreeModel *model; + GtkTreeIter iter; + gchar *retval = NULL; + + g_return_val_if_fail (GDICT_IS_STRATEGY_CHOOSER (chooser), NULL); + + priv = chooser->priv; + + selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->treeview)); + if (!gtk_tree_selection_get_selected (selection, &model, &iter)) + return NULL; + + gtk_tree_model_get (model, &iter, STRAT_COLUMN_NAME, &retval, -1); + + g_free (priv->current_strat); + priv->current_strat = g_strdup (retval); + + return retval; +} + +/** + * gdict_strategy_chooser_add_button: + * @chooser: a #GdictStrategyChooser + * @button_text: text of the button (can be a stock id) + * + * Creates a new button and packs it into the #GdictStrategyChooser + * "action area". + * + * Return value: the packed #GtkButton + * + * Since: 0.10 + */ +GtkWidget * +gdict_strategy_chooser_add_button (GdictStrategyChooser *chooser, + const gchar *button_text) +{ + GdictStrategyChooserPrivate *priv; + GtkWidget *button; + + g_return_val_if_fail (GDICT_IS_STRATEGY_CHOOSER (chooser), NULL); + g_return_val_if_fail (button_text != NULL, NULL); + + priv = chooser->priv; + + button = gtk_button_new_from_stock (button_text); + + gtk_widget_set_can_default (button, TRUE); + + gtk_widget_show (button); + + gtk_box_pack_end (GTK_BOX (priv->buttons_box), button, FALSE, TRUE, 0); + + return button; +} |