layout_image.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 (lw->slideshow)
		{
		layout_image_slideshow_stop(lw);
		}
	else
		{
		layout_image_slideshow_start(lw);
		}
}

gint layout_image_slideshow_active(LayoutWindow *lw)
{
	if (!layout_valid(&lw)) return FALSE;

	return (lw->slideshow != NULL);
}

gint layout_image_slideshow_pause_toggle(LayoutWindow *lw)
{
	gint ret;

	if (!layout_valid(&lw)) return FALSE;

	ret = slideshow_pause_toggle(lw->slideshow);

	layout_status_update_info(lw, NULL);

	return ret;
}

gint layout_image_slideshow_paused(LayoutWindow *lw)
{
	if (!layout_valid(&lw)) return FALSE;

	return (slideshow_paused(lw->slideshow));
}

static gint layout_image_slideshow_continue_check(LayoutWindow *lw)
{
	if (!lw->slideshow) return FALSE;

	if (!slideshow_should_continue(lw->slideshow))
		{
		layout_image_slideshow_stop(lw);
		return FALSE;
		}

	return TRUE;
}

/*
 *----------------------------------------------------------------------------
 * pop-up menus
 *----------------------------------------------------------------------------
 */

static void li_pop_menu_zoom_in_cb(GtkWidget *widget, gpointer data)
{
	LayoutWindow *lw = data;

	image_zoom_adjust(lw->image, get_zoom_increment());
}

static void li_pop_menu_zoom_out_cb(GtkWidget *widget, gpointer data)
{
	LayoutWindow *lw = data;
	image_zoom_adjust(lw->image, -get_zoom_increment());
}

static void li_pop_menu_zoom_1_1_cb(GtkWidget *widget, gpointer data)
{
	LayoutWindow *lw = data;

	image_zoom_set(lw->image, 1.0);
}

static void li_pop_menu_zoom_fit_cb(GtkWidget *widget, gpointer data)
{
	LayoutWindow *lw = data;

	image_zoom_set(lw->image, 0.0);
}

static void li_pop_menu_edit_cb(GtkWidget *widget, gpointer data)
{
	LayoutWindow *lw;
	gint n;

	lw = submenu_item_get_data(widget);
	n = GPOINTER_TO_INT(data);

	if (!editor_window_flag_set(n))
		{
		layout_image_full_screen_stop(lw);
		}
	start_editor_from_file(n, layout_image_get_path(lw));
}

static void li_pop_menu_wallpaper_cb(GtkWidget *widget, gpointer data)
{
	LayoutWindow *lw = data;

	layout_image_to_root(lw);
}

static void li_pop_menu_alter_cb(GtkWidget *widget, gpointer data)
{
	LayoutWindow *lw = data;
	AlterType type;

	lw = submenu_item_get_data(widget);
	type = (AlterType)GPOINTER_TO_INT(data);

	image_alter(lw->image, type);
}

static void li_pop_menu_info_cb(GtkWidget *widget, gpointer data)
{
	LayoutWindow *lw = data;

	info_window_new(layout_image_get_path(lw), NULL);
}

static void li_pop_menu_new_cb(GtkWidget *widget, gpointer data)
{
	LayoutWindow *lw = data;

	view_window_new(layout_image_get_path(lw));
}

static GtkWidget *li_pop_menu_click_parent(GtkWidget *widget, LayoutWindow *lw)
{
	GtkWidget *menu;
	GtkWidget *parent;

	menu = gtk_widget_get_toplevel(widget);
	if (!menu) return NULL;

	parent = g_object_get_data(G_OBJECT(menu), "click_parent");

	if (!parent && lw->full_screen)
		{
		parent = lw->full_screen->imd->widget;
		}

	return parent;
}

static void li_pop_menu_copy_cb(GtkWidget *widget, gpointer data)
{
	LayoutWindow *lw = data;

	file_util_copy(layout_image_get_path(lw), NULL, NULL,
		       li_pop_menu_click_parent(widget, lw));
}

static void li_pop_menu_move_cb(GtkWidget *widget, gpointer data)
{
	LayoutWindow *lw = data;

	file_util_move(layout_image_get_path(lw), NULL, NULL,
		       li_pop_menu_click_parent(widget, lw));
}

static void li_pop_menu_rename_cb(GtkWidget *widget, gpointer data)
{
	LayoutWindow *lw = data;

	file_util_rename(layout_image_get_path(lw), NULL,
			 li_pop_menu_click_parent(widget, lw));
}

static void li_pop_menu_delete_cb(GtkWidget *widget, gpointer data)
{
	LayoutWindow *lw = data;

	file_util_delete(layout_image_get_path(lw), NULL,
			 li_pop_menu_click_parent(widget, lw));
}

static void li_pop_menu_slide_start_cb(GtkWidget *widget, gpointer data)
{
	LayoutWindow *lw = data;

	layout_image_slideshow_start(lw);
}

static void li_pop_menu_slide_stop_cb(GtkWidget *widget, gpointer data)
{
	LayoutWindow *lw = data;

	layout_image_slideshow_stop(lw);
}

static void li_pop_menu_slide_pause_cb(GtkWidget *widget, gpointer data)
{
	LayoutWindow *lw = data;

	layout_image_slideshow_pause_toggle(lw);
}

static void li_pop_menu_full_screen_cb(GtkWidget *widget, gpointer data)
{
	LayoutWindow *lw = data;

	layout_image_full_screen_toggle(lw);
}

static void li_pop_menu_hide_cb(GtkWidget *widget, gpointer data)
{
	LayoutWindow *lw = data;

	layout_tools_hide_toggle(lw);
}

static GtkWidget *layout_image_pop_menu(LayoutWindow *lw)
{
	GtkWidget *menu;
	GtkWidget *item;
	GtkWidget *submenu;
	const gchar *path;
	gint fullscreen;

	path = layout_image_get_path(lw);
	fullscreen = layout_image_full_screen_active(lw);

	menu = popup_menu_short_lived();

	menu_item_add_stock(menu, _("Zoom _in"), GTK_STOCK_ZOOM_IN, G_CALLBACK(li_pop_menu_zoom_in_cb), lw);
	menu_item_add_stock(menu, _("Zoom _out"), GTK_STOCK_ZOOM_OUT, G_CALLBACK(li_pop_menu_zoom_out_cb), lw);
	menu_item_add_stock(menu, _("Zoom _1:1"), GTK_STOCK_ZOOM_100, G_CALLBACK(li_pop_menu_zoom_1_1_cb), lw);
	menu_item_add_stock(menu, _("Fit image to _window"), GTK_STOCK_ZOOM_FIT, G_CALLBACK(li_pop_menu_zoom_fit_cb), lw);
	menu_item_add_divider(menu);

	submenu = submenu_add_edit(menu, &item, G_CALLBACK(li_pop_menu_edit_cb), lw);
	if (!path) gtk_widget_set_sensitive(item, FALSE);
	menu_item_add_divider(submenu);
	menu_item_add(submenu, _("Set as _wallpaper"), G_CALLBACK(li_pop_menu_wallpaper_cb), lw);

	item = submenu_add_alter(menu, G_CALLBACK(li_pop_menu_alter_cb), lw);

	item = menu_item_add_stock(menu, _("_Properties"), GTK_STOCK_PROPERTIES, G_CALLBACK(li_pop_menu_info_cb), lw);
	if (!path) gtk_widget_set_sensitive(item, FALSE);

	item = menu_item_add_stock(menu, _("View in _new window"), GTK_STOCK_NEW, G_CALLBACK(li_pop_menu_new_cb), lw);
	if (!path || fullscreen) gtk_widget_set_sensitive(item, FALSE);

	menu_item_add_divider(menu);

	item = menu_item_add_stock(menu, _("_Copy..."), GTK_STOCK_COPY, G_CALLBACK(li_pop_menu_copy_cb), lw);
	if (!path) gtk_widget_set_sensitive(item, FALSE);
	item = menu_item_add(menu, _("_Move..."), G_CALLBACK(li_pop_menu_move_cb), lw);
	if (!path) gtk_widget_set_sensitive(item, FALSE);
	item = menu_item_add(menu, _("_Rename..."), G_CALLBACK(li_pop_menu_rename_cb), lw);
	if (!path) gtk_widget_set_sensitive(item, FALSE);
	item = menu_item_add_stock(menu, _("_Delete..."), GTK_STOCK_DELETE, G_CALLBACK(li_pop_menu_delete_cb), lw);
	if (!path) gtk_widget_set_sensitive(item, FALSE);

	menu_item_add_divider(menu);

	if (layout_image_slideshow_active(lw))
		{
		menu_item_add(menu, _("_Stop slideshow"), G_CALLBACK(li_pop_menu_slide_stop_cb), lw);
		if (layout_image_slideshow_paused(lw))
			{
			item = menu_item_add(menu, _("Continue slides_how"),
					     G_CALLBACK(li_pop_menu_slide_pause_cb), lw);
			}
		else
			{
			item = menu_item_add(menu, _("Pause slides_how"),
					     G_CALLBACK(li_pop_menu_slide_pause_cb), lw);
			}
		}
	else
                {
		menu_item_add(menu, _("_Start slideshow"), G_CALLBACK(li_pop_menu_slide_start_cb), lw);
		item = menu_item_add(menu, _("Pause slides_how"), G_CALLBACK(li_pop_menu_slide_pause_cb), lw);
		gtk_widget_set_sensitive(item, FALSE);
		}

	if (!fullscreen)
		{
		menu_item_add(menu, _("_Full screen"), G_CALLBACK(li_pop_menu_full_screen_cb), lw);
		}
	else
		{
		menu_item_add(menu, _("Exit _full screen"), G_CALLBACK(li_pop_menu_full_screen_cb), lw);
		}

	menu_item_add_divider(menu);

	item = menu_item_add_check(menu, _("Hide file _list"), lw->tools_hidden,
				   G_CALLBACK(li_pop_menu_hide_cb), lw);
	if (fullscreen) gtk_widget_set_sensitive(item, FALSE);

	return menu;
}

static void layout_image_menu_pos_cb(GtkMenu *menu, gint *x, gint *y, gboolean *push_in, gpointer data)
{
	LayoutWindow *lw = data;

	gdk_window_get_origin(lw->image->pr->window, x, y);
	popup_menu_position_clamp(menu, x, y, 0);
}

void layout_image_menu_popup(LayoutWindow *lw)
{
	GtkWidget *menu;

	menu = layout_image_pop_menu(lw);
	gtk_menu_popup(GTK_MENU(menu), NULL, NULL, layout_image_menu_pos_cb, lw, 0, GDK_CURRENT_TIME);
}

/*
 *----------------------------------------------------------------------------
 * dnd
 *----------------------------------------------------------------------------
 */

static void layout_image_dnd_receive(GtkWidget *widget, GdkDragContext *context,
				     gint x, gint y,
				     GtkSelectionData *selection_data, guint info,
				     guint time, gpointer data)
{
	LayoutWindow *lw = data;

	if (info == TARGET_URI_LIST || info == TARGET_APP_COLLECTION_MEMBER)
		{
		CollectionData *source;
		GList *list;
		GList *info_list;

		if (info == TARGET_URI_LIST)
			{
			list = uri_list_from_text(selection_data->data, TRUE);
			source = NULL;
			info_list = NULL;
			}
		else
			{
			source = collection_from_dnd_data((gchar *)selection_data->data, &list, &info_list);
			}

		if (list)
			{
			gchar *path;

			path = list->data;

			if (isfile(path))
				{
				gchar *base;
				gint row;

				base = remove_level_from_path(path);
				if (strcmp(base, layout_get_path(lw)) != 0)
					{
					layout_set_path(lw, base);
					}
				g_free(base);

				row = layout_list_get_index(lw, path);
				if (source && info_list)
					{
					layout_image_set_collection(lw, source, info_list->data);
					}
				else if (row == -1)
					{
					layout_image_set_path(lw, path);
					}
				else
					{
					layout_image_set_index(lw, row);
					}
				}
			else if (isdir(path))
				{
				layout_set_path(lw, path);
				layout_image_set_path(lw, NULL);
				}
			}

		path_list_free(list);
		g_list_free(info_list);
		}
}

static void layout_image_dnd_get(GtkWidget *widget, GdkDragContext *context,
				 GtkSelectionData *selection_data, guint info,
				 guint time, gpointer data)
{
	LayoutWindow *lw = data;
	const gchar *path;

	path = layout_image_get_path(lw);

	if (path)
		{
		gchar *text = NULL;
		gint len;
		gint plain_text;
		GList *list;

		switch (info)
			{
			case TARGET_URI_LIST:
				plain_text = FALSE;
				break;
			case TARGET_TEXT_PLAIN:
			default:
				plain_text = TRUE;
				break;
			}
		list = g_list_append(NULL, (gchar *)path);
		text = uri_text_from_list(list, &len, plain_text);
		g_list_free(list);
		if (text)
			{
			gtk_selection_data_set (selection_data, selection_data->target,
						8, text, len);
			g_free(text);
			}
		}
	else
		{
		gtk_selection_data_set (selection_data, selection_data->target,
					8, NULL, 0);
		}
}

static void layout_image_dnd_end(GtkWidget *widget, GdkDragContext *context, gpointer data)
{
	LayoutWindow *lw = data;
	if (context->action == GDK_ACTION_MOVE)
		{
		const gchar *path;
		gint row;

		path = layout_image_get_path(lw);
		row = layout_list_get_index(lw, path);
		if (row < 0) return;

		if (!isfile(path))
			{
			if (row < layout_list_count(lw, NULL) - 1)
				{
				layout_image_next(lw);
				}
			else
				{
				layout_image_prev(lw);
				}
			}
		layout_refresh(lw);
		}
}

static void layout_image_dnd_init(LayoutWindow *lw)
{
	gtk_drag_source_set(lw->image->pr, GDK_BUTTON2_MASK,
			    dnd_file_drag_types, dnd_file_drag_types_count,
			    GDK_ACTION_COPY | GDK_ACTION_MOVE | GDK_ACTION_LINK);
	g_signal_connect(G_OBJECT(lw->image->pr), "drag_data_get",
			 G_CALLBACK(layout_image_dnd_get), lw);
	g_signal_connect(G_OBJECT(lw->image->pr), "drag_end",
			 G_CALLBACK(layout_image_dnd_end), lw);

	gtk_drag_dest_set(lw->image->pr,
			  GTK_DEST_DEFAULT_MOTION | GTK_DEST_DEFAULT_DROP,
			  dnd_file_drop_types, dnd_file_drop_types_count,
                          GDK_ACTION_COPY | GDK_ACTION_MOVE | GDK_ACTION_LINK);
	g_signal_connect(G_OBJECT(lw->image->pr), "drag_data_received",
			 G_CALLBACK(layout_image_dnd_receive), lw);
}


/*
 *----------------------------------------------------------------------------