gtk.IconInfo.IconInfo Class Reference

List of all members.

Detailed Description

Description GtkIconTheme provides a facility for looking up icons by name and size.

The main reason for using a name rather than simply providing a filename is to allow different icons to be used depending on what icon theme is selecetd by the user. The operation of icon themes on Linux and Unix follows the Icon Theme Specification. There is a default icon theme, named hicolor where applications should install their icons, but more additional application themes can be installed as operating system vendors and users choose. Named icons are similar to the Themeable Stock Images(3) facility, and the distinction between the two may be a bit confusing. A few things to keep in mind: Stock images usually are used in conjunction with Stock Items(3)., such as GTK_STOCK_OK or GTK_STOCK_OPEN. Named icons are easier to set up and therefore are more useful for new icons that an application wants to add, such as application icons or window icons. Stock images can only be loaded at the symbolic sizes defined by the GtkIconSize enumeration, or by custom sizes defined by gtk_icon_size_register(), while named icons are more flexible and any pixel size can be specified. Because stock images are closely tied to stock items, and thus to actions in the user interface, stock images may come in multiple variants for different widget states or writing directions. A good rule of thumb is that if there is a stock image for what you want to use, use it, otherwise use a named icon. It turns out that internally stock images are generally defined in terms of one or more named icons. (An example of the more than one case is icons that depend on writing direction; GTK_STOCK_GO_FORWARD uses the two themed icons "gtk-stock-go-forward-ltr" and "gtk-stock-go-forward-rtl".) In many cases, named themes are used indirectly, via GtkImage or stock items, rather than directly, but looking up icons directly is also simple. The GtkIconTheme object acts as a database of all the icons in the current theme. You can create new GtkIconTheme objects, but its much more efficient to use the standard icon theme for the GdkScreen so that the icon information is shared with other people looking up icons. In the case where the default screen is being used, looking up an icon can be as simple as: GError *error = NULL; GtkIconTheme *icon_theme; GdkPixbuf *pixbuf; icon_theme = gtk_icon_theme_get_default(); pixbuf = gtk_icon_theme_load_icon (icon_theme, "my-icon-name", /+* icon name +/ 48, /+* size +/ 0, /+* flags +/ error); if (!pixbuf) { g_warning ("Couldn't load icon: %s", error->message); g_error_free (error); } else { /+* Use the pixbuf +/ g_object_unref (pixbuf); }


Public Member Functions

GtkIconInfogetIconInfoStruct ()
 this (GtkIconInfo *gtkIconInfo)
 Sets our main struct and passes it to the parent class.
void delegate (IconInfo)[] onChangedListeners
void addOnChanged (void delegate(IconInfo) dlg)
 extern (C) static void callBackChanged(GtkIconTheme *iconThemeStruct

Public Attributes

int[char[]] connectedSignals

Protected Member Functions

void * getStruct ()
 the main Gtk struct as a void*

Protected Attributes

GtkIconInfogtkIconInfo
 the main Gtk struct


Constructor & Destructor Documentation

gtk.IconInfo.IconInfo.this ( GtkIconInfo gtkIconInfo  ) 

Sets our main struct and passes it to the parent class.


Member Function Documentation

void gtk.IconInfo.IconInfo.addOnChanged ( void delegate(IconInfo dlg  ) 

void gtk.IconInfo.IconInfo.delegate ( IconInfo   ) 

gtk.IconInfo.IconInfo.extern (  ) 

GtkIconInfo* gtk.IconInfo.IconInfo.getIconInfoStruct (  ) 

void* gtk.IconInfo.IconInfo.getStruct (  )  [protected]

the main Gtk struct as a void*


Member Data Documentation

int [char[]] gtk.IconInfo.IconInfo.connectedSignals

GtkIconInfo* gtk.IconInfo.IconInfo.gtkIconInfo [protected]

the main Gtk struct


SourceForge.net Logo DSource.org Logo digitalmars.com Logo