search.c

Gqview,Linux下基于GTK+库写成的轻量级而能丰富的图像浏览程序。

	if (!sd->match_similarity_enable)
		{
		GtkTreeSortable *sortable;
		gint id;
		GtkSortType order;

		sortable = GTK_TREE_SORTABLE(gtk_tree_view_get_model(GTK_TREE_VIEW(sd->result_view)));
		if (gtk_tree_sortable_get_sort_column_id(sortable, &id, &order) &&
		    id == SEARCH_COLUMN_RANK)
			{
			gtk_tree_sortable_set_sort_column_id(sortable, SEARCH_COLUMN_PATH, GTK_SORT_ASCENDING);
			}
		}

	if (sd->search_type == SEARCH_MATCH_NONE)
		{
		/* search path */

		path = remove_trailing_slash(gtk_entry_get_text(GTK_ENTRY(sd->path_entry)));
		if (isdir(path))
			{
			g_free(sd->search_path);
			sd->search_path = path;
			path = NULL;

			tab_completion_append_to_history(sd->path_entry, sd->search_path);

			search_start(sd);
			}
		else
			{
			file_util_warning_dialog(_("Folder not found"),
						 _("Please enter an existing folder to search."),
						 GTK_STOCK_DIALOG_WARNING, sd->window);
			}

		g_free(path);
		}
	else if (sd->search_type == SEARCH_MATCH_ALL)
		{
		/* search metadata */

		g_free(sd->search_path);
		sd->search_path = g_strconcat(homedir(), "/", GQVIEW_CACHE_RC_METADATA, NULL);

		search_start(sd);
		}
	else if (sd->search_type == SEARCH_MATCH_CONTAINS)
		{
		/* search current result list */
		GList *list;

		list = search_result_refine_list(sd);

		g_free(sd->search_path);
		sd->search_path = NULL;

		search_start(sd);

		sd->search_file_list = g_list_concat(sd->search_file_list, list);
		}
}

/*
 *-------------------------------------------------------------------
 * window construct
 *-------------------------------------------------------------------
 */

enum {
	MENU_CHOICE_COLUMN_NAME = 0,
	MENU_CHOICE_COLUMN_VALUE
};

static void search_thumb_toggle_cb(GtkWidget *button, gpointer data)
{
	SearchData *sd = data;

	search_result_thumb_enable(sd, gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button)));
}

static gint sort_matchdata_dimensions(MatchFileData *a, MatchFileData *b)
{
	gint sa;
	gint sb;

	sa = a->width * a->height;
	sb = b->width * b->height;

	if (sa > sb) return 1;
	if (sa < sb) return -1;
	return 0;
}

static gint search_result_sort_cb(GtkTreeModel *model, GtkTreeIter *a, GtkTreeIter *b, gpointer data)
{
	gint n = GPOINTER_TO_INT(data);
	FileData *fda;
	FileData *fdb;

	gtk_tree_model_get(model, a, SEARCH_COLUMN_POINTER, &fda, -1);
	gtk_tree_model_get(model, b, SEARCH_COLUMN_POINTER, &fdb, -1);

	if (!fda || !fdb) return 0;

	switch (n)
		{
		case SEARCH_COLUMN_RANK:
			if (((MatchFileData *)fda)->rank > ((MatchFileData *)fdb)->rank) return 1;
			if (((MatchFileData *)fda)->rank < ((MatchFileData *)fdb)->rank) return -1;
			return 0;
			break;
		case SEARCH_COLUMN_NAME:
			return CASE_SORT(fda->name, fdb->name);
			break;
		case SEARCH_COLUMN_SIZE:
			if (fda->size > fdb->size) return 1;
			if (fda->size < fdb->size) return -1;
			return 0;
			break;
		case SEARCH_COLUMN_DATE:
			if (fda->date > fdb->date) return 1;
			if (fda->date < fdb->date) return -1;
			return 0;
			break;
		case SEARCH_COLUMN_DIMENSIONS:
			return sort_matchdata_dimensions((MatchFileData *)fda, (MatchFileData *)fdb);
			break;
		case SEARCH_COLUMN_PATH:
			return CASE_SORT(fda->path, fdb->path);
			break;
		default:
			break;
		}

	return 0;
}

static void search_result_add_column(SearchData * sd, gint n, const gchar *title, gint image, gint right_justify)
{
	GtkTreeViewColumn *column;
	GtkCellRenderer *renderer;

	column = gtk_tree_view_column_new();
	gtk_tree_view_column_set_title(column, title);
	gtk_tree_view_column_set_min_width(column, 4);

	if (n != SEARCH_COLUMN_THUMB) gtk_tree_view_column_set_resizable(column, TRUE);

	if (!image)
		{
		gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
		renderer = gtk_cell_renderer_text_new();
		if (right_justify) g_object_set(G_OBJECT(renderer), "xalign", 1.0, NULL);
		gtk_tree_view_column_pack_start(column, renderer, TRUE);
		gtk_tree_view_column_add_attribute(column, renderer, "text", n);

		gtk_tree_view_column_set_sort_column_id(column, n);
		}
	else
		{
		gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_FIXED);
		renderer = gtk_cell_renderer_pixbuf_new();
		cell_renderer_height_override(renderer);
		gtk_tree_view_column_pack_start(column, renderer, TRUE);
		gtk_tree_view_column_add_attribute(column, renderer, "pixbuf", n);
		}

	gtk_tree_view_append_column(GTK_TREE_VIEW(sd->result_view), column);
}

static void menu_choice_set_visible(GtkWidget *widget, gint visible)
{
	if (visible)
		{
		if (!GTK_WIDGET_VISIBLE(widget)) gtk_widget_show(widget);
		}
	else
		{
		if (GTK_WIDGET_VISIBLE(widget)) gtk_widget_hide(widget);
		}
}

static void menu_choice_path_cb(GtkWidget *combo, gpointer data)
{
	SearchData *sd = data;
	GtkTreeModel *store;
	GtkTreeIter iter;

	store = gtk_combo_box_get_model(GTK_COMBO_BOX(combo));
	if (!gtk_combo_box_get_active_iter(GTK_COMBO_BOX(combo), &iter)) return;
	gtk_tree_model_get(store, &iter, MENU_CHOICE_COLUMN_VALUE, &sd->search_type, -1);

	menu_choice_set_visible(gtk_widget_get_parent(sd->check_recurse),
				(sd->search_type == SEARCH_MATCH_NONE));
}

static void menu_choice_name_cb(GtkWidget *combo, gpointer data)
{
	SearchData *sd = data;
	GtkTreeModel *store;
	GtkTreeIter iter;

	store = gtk_combo_box_get_model(GTK_COMBO_BOX(combo));
	if (!gtk_combo_box_get_active_iter(GTK_COMBO_BOX(combo), &iter)) return;
	gtk_tree_model_get(store, &iter, MENU_CHOICE_COLUMN_VALUE, &sd->match_name, -1);
}

static void menu_choice_size_cb(GtkWidget *combo, gpointer data)
{
	SearchData *sd = data;
	GtkTreeModel *store;
	GtkTreeIter iter;

	store = gtk_combo_box_get_model(GTK_COMBO_BOX(combo));
	if (!gtk_combo_box_get_active_iter(GTK_COMBO_BOX(combo), &iter)) return;
	gtk_tree_model_get(store, &iter, MENU_CHOICE_COLUMN_VALUE, &sd->match_size, -1);

	menu_choice_set_visible(gtk_widget_get_parent(sd->spin_size_end),
				(sd->match_size == SEARCH_MATCH_BETWEEN));
}

static void menu_choice_date_cb(GtkWidget *combo, gpointer data)
{
	SearchData *sd = data;
	GtkTreeModel *store;
	GtkTreeIter iter;

	store = gtk_combo_box_get_model(GTK_COMBO_BOX(combo));
	if (!gtk_combo_box_get_active_iter(GTK_COMBO_BOX(combo), &iter)) return;
	gtk_tree_model_get(store, &iter, MENU_CHOICE_COLUMN_VALUE, &sd->match_date, -1);

	menu_choice_set_visible(gtk_widget_get_parent(sd->date_sel_end),
				(sd->match_date == SEARCH_MATCH_BETWEEN));
}

static void menu_choice_dimensions_cb(GtkWidget *combo, gpointer data)
{
	SearchData *sd = data;
	GtkTreeModel *store;
	GtkTreeIter iter;

	store = gtk_combo_box_get_model(GTK_COMBO_BOX(combo));
	if (!gtk_combo_box_get_active_iter(GTK_COMBO_BOX(combo), &iter)) return;
	gtk_tree_model_get(store, &iter, MENU_CHOICE_COLUMN_VALUE, &sd->match_dimensions, -1);

	menu_choice_set_visible(gtk_widget_get_parent(sd->spin_width_end),
				(sd->match_dimensions == SEARCH_MATCH_BETWEEN));
}

static void menu_choice_keyword_cb(GtkWidget *combo, gpointer data)
{
	SearchData *sd = data;
	GtkTreeModel *store;
	GtkTreeIter iter;

	store = gtk_combo_box_get_model(GTK_COMBO_BOX(combo));
	if (!gtk_combo_box_get_active_iter(GTK_COMBO_BOX(combo), &iter)) return;
	gtk_tree_model_get(store, &iter, MENU_CHOICE_COLUMN_VALUE, &sd->match_keywords, -1);
}

static void menu_choice_spin_cb(GtkAdjustment *adjustment, gpointer data)
{
	gint *value = data;

	*value = (gint)gtk_adjustment_get_value(adjustment);
}

static GtkWidget *menu_spin(GtkWidget *box, gdouble min, gdouble max, gint value,
			    GCallback func, gpointer data)
{
	GtkWidget *spin;
	GtkAdjustment *adj;

	spin = gtk_spin_button_new_with_range(min, max, 1);
	gtk_spin_button_set_value(GTK_SPIN_BUTTON(spin), (gdouble)value);
	adj = gtk_spin_button_get_adjustment(GTK_SPIN_BUTTON(spin));
	if (func) g_signal_connect(G_OBJECT(adj), "value_changed",
				   G_CALLBACK(func), data);
	gtk_box_pack_start(GTK_BOX(box), spin, FALSE, FALSE, 0);
	gtk_widget_show(spin);

	return spin;
}

static void menu_choice_check_cb(GtkWidget *button, gpointer data)
{
	GtkWidget *widget = data;
	gboolean active;
	gboolean *value;

	active = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button));
	gtk_widget_set_sensitive(widget, active);

	value = g_object_get_data(G_OBJECT(button), "check_var");
	if (value) *value = active;
}

static GtkWidget *menu_choice_menu(const MatchList *items, gint item_count,
				   GCallback func, gpointer data)
{
	GtkWidget *combo;
	GtkCellRenderer *renderer;
	GtkListStore *store;
	gint i;

	store = gtk_list_store_new(2, G_TYPE_STRING, G_TYPE_INT);
	combo = gtk_combo_box_new_with_model(GTK_TREE_MODEL(store));
	g_object_unref(store);

	renderer = gtk_cell_renderer_text_new();
	gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combo), renderer, TRUE);
	gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(combo), renderer,
				       "text", MENU_CHOICE_COLUMN_NAME, NULL);

	for (i = 0; i < item_count; i++)
		{
		GtkTreeIter iter;

		gtk_list_store_append(store, &iter);
		gtk_list_store_set(store, &iter, MENU_CHOICE_COLUMN_NAME, _(items[i].text),
						 MENU_CHOICE_COLUMN_VALUE, items[i].type, -1);
		}

	gtk_combo_box_set_active(GTK_COMBO_BOX(combo), 0);

	if (func) g_signal_connect(G_OBJECT(combo), "changed",
				   G_CALLBACK(func), data);

	return combo;
}

static GtkWidget *menu_choice(GtkWidget *box, GtkWidget **check, GtkWidget **menu,
			      const gchar *text, gboolean *value,
			      const MatchList *items, gint item_count,
			      GCallback func, gpointer data)
{
	GtkWidget *base_box;
	GtkWidget *hbox;
	GtkWidget *button;
	GtkWidget *option;

	base_box = gtk_hbox_new(FALSE, PREF_PAD_GAP);
	gtk_box_pack_start(GTK_BOX(box), base_box, FALSE, FALSE, 0);
	gtk_widget_show(base_box);

	button = gtk_check_button_new();
	if (value) gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button), *value);
	gtk_box_pack_start(GTK_BOX(base_box), button, FALSE, FALSE, 0);
	gtk_widget_show(button);
	if (check) *check = button;
	if (value) g_object_set_data(G_OBJECT(button), "check_var", value);

	hbox = gtk_hbox_new(FALSE, PREF_PAD_SPACE);
	gtk_box_pack_start(GTK_BOX(base_box), hbox, TRUE, TRUE, 0);
	gtk_widget_show(hbox);

	g_signal_connect(G_OBJECT(button), "toggled",
			 G_CALLBACK(menu_choice_check_cb), hbox);
	gtk_widget_set_sensitive(hbox, (value) ? *value : FALSE);

	pref_label_new(hbox, text);

	if (!items && !menu) return hbox;

	option = menu_choice_menu(items, item_count, func, data);
	gtk_box_pack_start(GTK_BOX(hbox), option, FALSE, FALSE, 0);
	gtk_widget_show(option);
	if (menu) *menu = option;

	return hbox;
}

static void search_window_close(SearchData *sd)
{
	gtk_widget_destroy(sd->window);
}

static gint search_window_delete_cb(GtkWidget *widget, GdkEventAny *event, gpointer data)
{
	SearchData *sd = data;

	search_window_close(sd);
	return TRUE;
}

static void search_window_destroy_cb(GtkWidget *widget, gpointer data)
{
	SearchData *sd = data;

	search_window_list = g_list_remove(search_window_list, sd);

	search_result_update_idle_cancel(sd);

	filelist_free(sd->search_buffer_list);
	sd->search_buffer_list = NULL;

	search_stop(sd);
	search_result_clear(sd);

	g_free(sd->search_path);
	g_free(sd->search_name);
	g_free(sd->search_similarity_path);
	path_list_free(sd->search_keyword_list);

	g_free(sd);
}

void search_new(const gchar *path, const gchar *example_file)
{
	SearchData *sd;
	GtkWidget *vbox;
	GtkWidget *hbox;
	GtkWidget *hbox2;
	GtkWidget *pad_box;
	GtkWidget *frame;
	GtkWidget *scrolled;
	GtkListStore *store;
	GtkTreeSortable *sortable;
	GtkTreeSelection *selection;
	GtkWidget *combo;
	GdkGeometry geometry;

	sd = g_new0(SearchData, 1);

	sd->search_path = g_strdup(path);
	sd->search_path_recurse = TRUE;
	sd->search_size = 0;
	sd->search_width = 640;
	sd->search_height = 480;
	sd->search_width_end = 1024;
	sd->search_height_end = 768;
	sd->search_name = NULL;
	sd->search_name_match_case = FALSE;

	sd->search_type = SEARCH_MATCH_NONE;

	sd->match_name = SEARCH_MATCH_CONTAINS;
	sd->match_size = SEARCH_MATCH_EQUAL;
	sd->match_date = SEARCH_MATCH_EQUAL;
	sd->match_dimensions = SEARCH_MATCH_EQUAL;
	sd->match_keywords = SEARCH_MATCH_ALL;

	sd->match_name_enable = TRUE;
	sd->match_size_enable = FALSE;
	sd->match_date_enable = FALSE;
	sd->match_dimensions_enable = FALSE;
	sd->match_similarity_enable = FALSE;
	sd->match_keywords_enable = FALSE;

	sd->search_similarity = 95;
	sd->search_similarity_path = g_strdup(example_file);
	sd->search_similarity_cd = NULL;

	sd->search_idle_id = -1;
	sd->update_idle_id = -1;

	sd->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
	window_set_icon(sd->window, NULL, NULL);

	gtk_window_set_resizable(GTK_WINDOW(sd->window), TRUE);
	gtk_window_set_title(GTK_WINDOW(sd->window), _("Image search - GQview"));
	gtk_window_set_wmclass(GTK_WINDOW(sd->window), "search", "GQview");

	geometry.min_width = 32;
	geometry.min_height = 32;
	geometry.base_width = DEF_SEARCH_WIDTH;
	geometry.base_height = DEF_SEARCH_HEIGHT;
	gtk_window_set_geometry_hints(GTK_WINDOW(sd->window), NULL, &geometry,
				      GDK_HINT_MIN_SIZE | GDK_HINT_BASE_SIZE);

	gtk_window_set_default_size(GTK_WINDOW(sd->window), DEF_SEARCH_WIDTH, DEF_SEARCH_HEIGHT);

	g_signal_connect(G_OBJECT(sd->window), "delete_event",
			 G_CALLBACK(search_window_delete_cb), sd);
	g_signal_connect(G_OBJECT(sd->window), "destroy",
			 G_CALLBACK(search_window_destroy_cb), sd);

	g_signal_connect(G_OBJECT(sd->window), "key_press_event",
			 G_CALLBACK(search_window_keypress_cb), sd);

	vbox = gtk_vbox_new(FALSE, PREF_PAD_GAP);
	gtk_container_set_border_width(GTK_CONTAINER(vbox), PREF_PAD_GAP);
	gtk_container_add(GTK_CONTAINER(sd->window), vbox);
	gtk_widget_show(vbox);

	sd->box_search = pref_box_new(vbox, FALSE, GTK_ORIENTATION_VERTICAL, PREF_PAD_GAP);

	hbox = pref_box_new(sd->box_search, FALSE, GTK_ORIENTATION_HORIZONTAL, PREF_PAD_SPACE);

	pref_label_new(hbox, _("Search:"));

	sd->menu_path = menu_choice_menu(text_search_menu_path, sizeof(text_search_menu_path) / sizeof(MatchList),
					 G_CALLBACK(menu_choice_path_cb), sd);
	gtk_box_pack_start(GTK_BOX(hbox), sd->menu_path, FALSE, FALSE, 0);
	gtk_widget_show(sd->menu_path);

	hbox2 = pref_box_new(hbox, TRUE, GTK_ORIENTATION_HORIZONTAL, PREF_PAD_SPACE);
	combo = tab_completion_new_with_history(&sd->path_entry, sd->search_path,
						"search_path", -1,
						NULL, NULL);
	tab_completion_add_select_button(sd->path_entry, NULL, TRUE);
	gtk_box_pack_start(GTK_BOX(hbox2), combo, TRUE, TRUE, 0);
	gtk_widget_show(combo);
	sd->check_recurse = pref_checkbox_new_int(hbox2, _("Recurse"),
						  sd->search_path_recurse, &sd->search_path_recurse);

	hbox = menu_choice(sd->box_search, &sd->check_name, &sd->menu_name,
			   _("File name"), &sd->match_name_enable,
			   text_search_menu_name, sizeof(text_search_menu_name) / sizeof(MatchList),
			   G_CALLBACK(menu_choice_name_cb), sd);
	combo = history_combo_new(&sd->entry_name, "", "search_name", -1);
	gtk_box_pack_start(GTK_BOX(hbox), combo, TRUE, TRUE, 0);
	gtk_widget_show(combo);
	pref_checkbox_new_int(hbox, _("Match case"),
			      sd->search_name_match_case, &sd->search_name_match_case);

	hbox = menu_choice(sd->box_search, &sd->check_size, &sd->menu_size,
			   _("File size is"), &sd->match_size_enable,
			   text_search_menu_size, sizeof(text_search_menu_size) / sizeof(MatchList),
			   G_CALLBACK(menu_choice_size_cb), sd);
	sd->spin_size = menu_spin(hbox, 0, 1024*1024*1024, sd->search_size,
				  G_CALLBACK(menu_choice_spin_cb), &sd->search_size);
	hbox2 = gtk_hbox_new(FALSE, PREF_PAD_SPACE);
	gtk_box_pack_start(GTK_BOX(hbox), hbox2, FALSE, FALSE, 0);
	pref_label_new(