collect-table.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。

	CollectTable *ct = data;

	file_util_move(NULL, collection_table_popup_file_list(ct), NULL, ct->listview);
}

static void collection_table_popup_rename_cb(GtkWidget *widget, gpointer data)
{
	CollectTable *ct = data;

	file_util_rename(NULL, collection_table_popup_file_list(ct), ct->listview);
}

static void collection_table_popup_delete_cb(GtkWidget *widget, gpointer data)
{
	CollectTable *ct = data;

	file_util_delete(NULL, collection_table_popup_file_list(ct), ct->listview);
}

static void collection_table_popup_sort_cb(GtkWidget *widget, gpointer data)
{
	CollectTable *ct;
	SortType type;

	ct = submenu_item_get_data(widget);

	if (!ct) return;

	type = (SortType)GPOINTER_TO_INT(data);

	collection_set_sort_method(ct->cd, type);
}

static void collection_table_popup_view_new_cb(GtkWidget *widget, gpointer data)
{
	CollectTable *ct = data;

	if (ct->click_info && g_list_find(ct->cd->list, ct->click_info))
		{
		view_window_new_from_collection(ct->cd, ct->click_info);
		}
}

static void collection_table_popup_view_cb(GtkWidget *widget, gpointer data)
{
	CollectTable *ct = data;

	if (ct->click_info && g_list_find(ct->cd->list, ct->click_info))
		{
		layout_image_set_collection(NULL, ct->cd, ct->click_info);
		}
}

static void collection_table_popup_selectall_cb(GtkWidget *widget, gpointer data)
{
	CollectTable *ct = data;

	collection_table_select_all(ct);
	ct->prev_selection= ct->click_info;
}

static void collection_table_popup_unselectall_cb(GtkWidget *widget, gpointer data)
{
	CollectTable *ct = data;

	collection_table_unselect_all(ct);
	ct->prev_selection= ct->click_info;
}

static void collection_table_popup_remove_cb(GtkWidget *widget, gpointer data)
{
	CollectTable *ct = data;
	GList *list;

	if (!ct->click_info) return;
                                                                                                                               
	if (INFO_SELECTED(ct->click_info))
		{
		list = g_list_copy(ct->selection);
		}
	else
		{
		list = g_list_append(NULL, ct->click_info);
		}

	collection_remove_by_info_list(ct->cd, list);
	g_list_free(list);
}

static void collection_table_popup_add_filelist_cb(GtkWidget *widget, gpointer data)
{
	CollectTable *ct = data;
	GList *list;

	list = layout_list(NULL);

	if (list)
		{
		collection_table_add_path_list(ct, list);
		path_list_free(list);
		}
}

static void collection_table_popup_add_collection_cb(GtkWidget *widget, gpointer data)
{
	CollectTable *ct = data;

	collection_dialog_append(NULL, ct->cd);
}

static void collection_table_popup_find_dupes_cb(GtkWidget *widget, gpointer data)
{
	CollectTable *ct = data;
	DupeWindow *dw;

	dw = dupe_window_new(DUPE_MATCH_NAME);
	dupe_window_add_collection(dw, ct->cd);
}

static void collection_table_popup_print_cb(GtkWidget *widget, gpointer data)
{
	CollectTable *ct = data;
	const gchar *path;

	path = (ct->click_info) ? ct->click_info->path : NULL;

	print_window_new(path, collection_table_selection_get_list(ct), collection_table_get_list(ct), ct->listview);
}

static void collection_table_popup_show_names_cb(GtkWidget *widget, gpointer data)
{
	CollectTable *ct = data;

	collection_table_toggle_filenames(ct);
}

static void collection_table_popup_destroy_cb(GtkWidget *widget, gpointer data)
{
	CollectTable *ct = data;

	collection_table_selection_remove(ct, ct->click_info, SELECTION_PRELIGHT, NULL);
	ct->click_info = NULL;
	ct->popup = NULL;

	path_list_free(ct->drop_list);
	ct->drop_list = NULL;
	ct->drop_info = NULL;
}

static GtkWidget *collection_table_popup_menu(CollectTable *ct, gint over_icon)
{
	GtkWidget *menu;
	GtkWidget *item;

	menu = popup_menu_short_lived();

	g_signal_connect(G_OBJECT(menu), "destroy",
			 G_CALLBACK(collection_table_popup_destroy_cb), ct);

	menu_item_add_sensitive(menu, _("_View"), over_icon,
			G_CALLBACK(collection_table_popup_view_cb), ct);
	menu_item_add_stock_sensitive(menu, _("View in _new window"), GTK_STOCK_NEW, over_icon,
			G_CALLBACK(collection_table_popup_view_new_cb), ct);
	menu_item_add_divider(menu);
	menu_item_add_stock_sensitive(menu, _("Rem_ove"), GTK_STOCK_REMOVE, over_icon,
			G_CALLBACK(collection_table_popup_remove_cb), ct);

	menu_item_add_stock(menu, _("Append from file list"), GTK_STOCK_ADD,
			G_CALLBACK(collection_table_popup_add_filelist_cb), ct);
	menu_item_add_stock(menu, _("Append from collection..."), GTK_STOCK_OPEN,
			G_CALLBACK(collection_table_popup_add_collection_cb), ct);
	menu_item_add_divider(menu);
	menu_item_add(menu, _("Select all"),
			G_CALLBACK(collection_table_popup_selectall_cb), ct);
	menu_item_add(menu, _("Select none"),
			G_CALLBACK(collection_table_popup_unselectall_cb), ct);
	menu_item_add_divider(menu);

	submenu_add_edit(menu, &item,
			G_CALLBACK(collection_table_popup_edit_cb), ct);
	gtk_widget_set_sensitive(item, over_icon);

	menu_item_add_sensitive(menu, _("_Properties"), over_icon,
			G_CALLBACK(collection_table_popup_info_cb), ct);
	menu_item_add_divider(menu);
	menu_item_add_stock_sensitive(menu, _("_Copy..."), GTK_STOCK_COPY, over_icon,
			G_CALLBACK(collection_table_popup_copy_cb), ct);
	menu_item_add_sensitive(menu, _("_Move..."), over_icon,
			G_CALLBACK(collection_table_popup_move_cb), ct);
	menu_item_add_sensitive(menu, _("_Rename..."), over_icon,
			G_CALLBACK(collection_table_popup_rename_cb), ct);
	menu_item_add_stock_sensitive(menu, _("_Delete..."), GTK_STOCK_DELETE, over_icon,
			G_CALLBACK(collection_table_popup_delete_cb), ct);
	menu_item_add_divider(menu);

	submenu_add_sort(menu, G_CALLBACK(collection_table_popup_sort_cb), ct, FALSE, TRUE, FALSE, 0);
	menu_item_add_check(menu, _("Show filename _text"), ct->show_text,
			G_CALLBACK(collection_table_popup_show_names_cb), ct);
	menu_item_add_divider(menu);
	menu_item_add_stock(menu, _("_Save collection"), GTK_STOCK_SAVE,
			G_CALLBACK(collection_table_popup_save_cb), ct);
	menu_item_add_stock(menu, _("Save collection _as..."), GTK_STOCK_SAVE_AS,
			G_CALLBACK(collection_table_popup_save_as_cb), ct);
	menu_item_add_divider(menu);
	menu_item_add_stock(menu, _("_Find duplicates..."), GTK_STOCK_FIND,
			G_CALLBACK(collection_table_popup_find_dupes_cb), ct);
	menu_item_add_stock_sensitive(menu, _("Print..."), GTK_STOCK_PRINT, over_icon,
			G_CALLBACK(collection_table_popup_print_cb), ct);		

	return menu;
}
/*
 *-------------------------------------------------------------------
 * keyboard callbacks
 *-------------------------------------------------------------------
 */

static void collection_table_set_focus(CollectTable *ct, CollectInfo *info)
{
	GtkTreeIter iter;
	gint row, col;

	if (g_list_find(ct->cd->list, ct->focus_info))
		{
		if (info == ct->focus_info)
			{
			/* ensure focus row col are correct */
			collection_table_find_position(ct, ct->focus_info,
						       &ct->focus_row, &ct->focus_column);
			return;
			}
		collection_table_selection_remove(ct, ct->focus_info, SELECTION_FOCUS, NULL);
		}

	if (!collection_table_find_position(ct, info, &row, &col))
		{
		ct->focus_info = NULL;
		ct->focus_row = -1;
		ct->focus_column = -1;
		return;
		}

	ct->focus_info = info;
	ct->focus_row = row;
	ct->focus_column = col;
	collection_table_selection_add(ct, ct->focus_info, SELECTION_FOCUS, NULL);

	if (collection_table_find_iter(ct, ct->focus_info, &iter, NULL))
		{
		GtkTreePath *tpath;
		GtkTreeViewColumn *column;
		GtkTreeModel *store;

		tree_view_row_make_visible(GTK_TREE_VIEW(ct->listview), &iter, FALSE);

		store = gtk_tree_view_get_model(GTK_TREE_VIEW(ct->listview));
		tpath = gtk_tree_model_get_path(store, &iter);
		/* focus is set to an extra column with 0 width to hide focus, we draw it ourself */
		column = gtk_tree_view_get_column(GTK_TREE_VIEW(ct->listview), COLLECT_TABLE_MAX_COLUMNS);
		gtk_tree_view_set_cursor(GTK_TREE_VIEW(ct->listview), tpath, column, FALSE);
		gtk_tree_path_free(tpath);
		}
}

static void collection_table_move_focus(CollectTable *ct, gint row, gint col, gint relative)
{
	gint new_row;
	gint new_col;

	if (relative)
		{
		new_row = ct->focus_row;
		new_col = ct->focus_column;

		new_row += row;
		if (new_row < 0) new_row = 0;
		if (new_row >= ct->rows) new_row = ct->rows - 1;

		while(col != 0)
			{
			if (col < 0)
				{
				new_col--;
				col++;
				}
			else
				{
				new_col++;
				col--;
				}

			if (new_col < 0)
				{
				if (new_row > 0)
					{
					new_row--;
					new_col = ct->columns - 1;
					}
				else
					{
					new_col = 0;
					}
				}
			if (new_col >= ct->columns)
				{
				if (new_row < ct->rows - 1)
					{
					new_row++;
					new_col = 0;
					}
				else
					{
					new_col = ct->columns - 1;
					}
				}
			}
		}
	else
		{
		new_row = row;
		new_col = col;

		if (new_row >= ct->rows)
			{
			if (ct->rows > 0)
				new_row = ct->rows - 1;
			else
				new_row = 0;
			new_col = ct->columns - 1;
			}
		if (new_col >= ct->columns) new_col = ct->columns - 1;
		}

	if (new_row == ct->rows - 1)
		{
		gint l;

		/* if we moved beyond the last image, go to the last image */

		l = g_list_length(ct->cd->list);
		if (ct->rows > 1) l -= (ct->rows - 1) * ct->columns;
		if (new_col >= l) new_col = l - 1;
		}

	if (new_row == -1 || new_col == -1)
		{
		if (!ct->cd->list) return;
		new_row = new_col = 0;
		}

	collection_table_set_focus(ct, collection_table_find_data(ct, new_row, new_col, NULL));
}

static void collection_table_update_focus(CollectTable *ct)
{
	gint new_row = 0;
	gint new_col = 0;

	if (ct->focus_info && collection_table_find_position(ct, ct->focus_info, &new_row, &new_col))
		{
		/* first find the old focus, if it exists and is valid */
		}
	else
		{
		/* (try to) stay where we were */
		new_row = ct->focus_row;
		new_col = ct->focus_column;
		}

	collection_table_move_focus(ct, new_row, new_col, FALSE);
}

/* used to figure the page up/down distances */
static gint page_height(CollectTable *ct)
{
	GtkAdjustment *adj;
	gint page_size;
	gint row_height;
	gint ret;

	adj = gtk_tree_view_get_vadjustment(GTK_TREE_VIEW(ct->listview));
	page_size = (gint)adj->page_increment;

	row_height = thumb_max_height + THUMB_BORDER_PADDING * 2;
	if (ct->show_text) row_height += thumb_max_height / 3;

	ret = page_size / row_height;
	if (ret < 1) ret = 1;

	return ret;
}

static void collection_table_menu_pos_cb(GtkMenu *menu, gint *x, gint *y, gboolean *push_in, gpointer data)
{
	CollectTable *ct = data;
	GtkTreeModel *store;
	GtkTreeIter iter;
	gint column;
	GtkTreePath *tpath;
	gint cw, ch;

	if (!collection_table_find_iter(ct, ct->click_info, &iter, &column)) return;
	store = gtk_tree_view_get_model(GTK_TREE_VIEW(ct->listview));
	tpath = gtk_tree_model_get_path(store, &iter);
	tree_view_get_cell_clamped(GTK_TREE_VIEW(ct->listview), tpath, column, FALSE, x, y, &cw, &ch);
	gtk_tree_path_free(tpath);
	*y += ch;
	popup_menu_position_clamp(menu, x, y, 0);
}

static gint collection_table_press_key_cb(GtkWidget *widget, GdkEventKey *event, gpointer data)
{
	CollectTable *ct = data;
	gint stop_signal = FALSE;
	gint focus_row = 0;
	gint focus_col = 0;
	CollectInfo *info;

	switch (event->keyval)
		{
		case GDK_Left: case GDK_KP_Left:
			focus_col = -1;
			stop_signal = TRUE;
			break;
		case GDK_Right: case GDK_KP_Right:
			focus_col = 1;
			stop_signal = TRUE;
			break;
		case GDK_Up: case GDK_KP_Up:
			focus_row = -1;
			stop_signal = TRUE;
			break;
		case GDK_Down: case GDK_KP_Down:
			focus_row = 1;
			stop_signal = TRUE;
			break;
		case GDK_Page_Up: case GDK_KP_Page_Up:
			focus_row = -page_height(ct);
			stop_signal = TRUE;
			break;
		case GDK_Page_Down: case GDK_KP_Page_Down:
			focus_row = page_height(ct);
			stop_signal = TRUE;
			break;
		case GDK_Home: case GDK_KP_Home:
			focus_row = -ct->focus_row;
			focus_col = -ct->focus_column;
			stop_signal = TRUE;
			break;
		case GDK_End: case GDK_KP_End:
			focus_row = ct->rows - 1 - ct->focus_row;
			focus_col = ct->columns - 1 - ct->focus_column;
			stop_signal = TRUE;
			break;
		case GDK_space:
			info = collection_table_find_data(ct, ct->focus_row, ct->focus_column, NULL);
			if (info)
				{
				ct->click_info = info;
				if (event->state & GDK_CONTROL_MASK)
					{
					collection_table_select_util(ct, info, !INFO_SELECTED(info));
					}
				else
					{
					collection_table_unselect_all(ct);
					collection_table_select(ct, info);
					}
				}
			stop_signal = TRUE;
			break;
		case 'T': case 't':
			if (event->state & GDK_CONTROL_MASK) collection_table_toggle_filenames(ct);
			break;
		case GDK_Menu:
		case GDK_F10:
			info = collection_table_find_data(ct, ct->focus_row, ct->focus_column, NULL);
			ct->click_info = info;

			collection_table_selection_add(ct, ct->click_info, SELECTION_PRELIGHT, NULL);
			tip_unschedule(ct);

			ct->popup = collection_table_popup_menu(ct, (info != NULL));
			gtk_menu_popup(GTK_MENU(ct->popup), NULL, NULL, collection_table_menu_pos_cb, ct, 0, GDK_CURRENT_TIME);
			stop_signal = TRUE;
			break;
		default:
			break;
		}

	if (focus_row != 0 || focus_col != 0)
		{
		CollectInfo *new_info;
		CollectInfo *old_info;

		old_info = collection_table_find_data(ct, ct->focus_row, ct->focus_column, NULL);
		collection_table_move_focus(ct, focus_row, focus_col, TRUE);
		new_info = collection_table_find_data(ct, ct->focus_row, ct->focus_column, NULL);

		if (new_info != old_info)
			{
			if (event->state & GDK_SHIFT_MASK)
				{
				if (!collection_rectangular_selection)
					{
					collection_table_select_region_util(ct, old_info, new_info, FALSE);
					}
				else
					{
					collection_table_select_region_util(ct, ct->click_info, old_info, FALSE);
					}
				collection_table_select_region_util(ct, ct->click_info, new_info, TRUE);
				}
			else if (event->state & GDK_CONTROL_MASK)
				{
				ct->click_info = new_info;
				}
			else
				{
				ct->click_info = new_info;
				collection_table_unselect_all(ct);
				collection_table_select(ct, new_info);
				}
			}
		}

	if (stop_signal)
		{
		g_signal_stop_emission_by_name(GTK_OBJECT(widget), "key_press_event");
		tip_unschedule(ct);
		}

	return stop_signal;
}

/*
 *-------------------------------------------------------------------
 * insert marker
 *-------------------------------------------------------------------
 */

static CollectInfo *collection_table_insert_find(CollectTable *ct, CollectInfo *source, gint *after, GdkRectangle *cell,
						 gint use_coord, gint x, gint y)
{
	CollectInfo *info = NULL;
	GtkTreeModel *store;
	GtkTreeIter iter;
	GtkTreePath *tpath;
	GtkTreeViewColumn *column;

	store = gtk_tree_view_get_model(GTK_TREE_VIEW(ct->listview));

	if (!use_coord) gdk_window_get_pointer(ct->listview->window, &x, &y, NULL);

	if (source)
		{
		gint col;
		if (collection_table_find_iter(ct, source, &iter, &col))
			{
			tpath = gtk_tree_model_get_path(store, &iter);
			column = gtk_tree_view_get_column(GTK_TREE_VIEW(ct->listview), col);
			gtk_tree_view_get_background_area(GTK_TREE_VIEW(ct->listview), tpath, column, cell);
			gtk_tree_path_free(tpath);

			info = source;
			*after = (x > cell->x + (cell->width / 2));
			}
		return info;
		}

	if (gtk_tree_view_get_path_at_pos(GTK_TREE_VIEW(ct->listview), x, y,
					  &tpath, &column, NULL, NULL))
		{
		GList *list;
		gint n;

		gtk_tree_model_get_iter(store, &iter, tpath);
		gtk_tree_model_get(store, &iter, CTABLE_COLUMN_POINTER, &list, -1);

		n = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(column), "column_number"));
		info = g_list_nth_data(list, n);

		if (info)
			{
			gtk_tree_view_get_background_area(GTK_TREE_VIEW(ct->listview), tpath, column, cell);
			*after = (x > cell->x + (cell->width / 2));
			}

		gtk_tree_path_free(tpath);
		}

	if (info == NULL)
		{
		GList *work;

		work = g_list_last(ct->cd->list);
		if (work)
			{
			gint col;

			info = work->data;
			*after = TRUE;

			if (collection_table_find_iter(ct, info, &iter, &col))
				{
				tpath = gtk_tree_model_get_path(store, &iter);
				column = gtk_tree_view_get_column(GTK_TREE_VIEW(ct->listview), col);
				gtk_tree_view_get_background_area(GTK_TREE_VIEW(ct->listview), tpath, column, cell);
				gtk_tree_path_free(tpath);
				}
			}
		}