📄 sec-itemfactoryexample.html
字号:
<HTML><HEAD><TITLE>Item Factory Example</TITLE><METANAME="GENERATOR"CONTENT="Modular DocBook HTML Stylesheet Version 1.49"><LINKREL="HOME"TITLE="GTK+ 1.2 Tutorial"HREF="gtk-tut.html"><LINKREL="UP"TITLE="Menu Widget"HREF="ch-menuwidget.html"><LINKREL="PREVIOUS"TITLE="Using ItemFactory"HREF="sec-usingitemfactory.html"><LINKREL="NEXT"TITLE="Text Widget"HREF="ch-textwidget.html"></HEAD></head><body bgcolor="#FFFFFF" marginheight=0 marginwidth=0 width="100%"><table cellspacing=6 border=0 cellpadding=0 width="100%"> <tr> <td bgcolor="#FFFFFF" valign=top nowrap> <centeR><A HREF="/"><img src="/images/gtk-logo-rgb.gif" width=107 height=140 border=0></A> <font face="helvetica,lucidia" color="#000000"><BR><BR><b>GTK+<BR>The GIMP Toolkit</b></center><BR><table width=100% cellspacing=0 cellpadding=2 border=0><tr><td bgcolor="#000000"><table width=100% cellspacing=0 cellpadding=4 border=0><tr><td bgcolor="#AAAAEE" nowrap><B>General</B></td></tr><tr><td bgcolor="#FFFFFF" nowrap><A HREF="/">Introduction</A><BR><A HREF="/screenshots/">Screenshots</A><br><A HREF="/download/">Download</A><br><A HREF="/mailinglists.html">Mailing Lists</A><BR><A HREF="/bindings.html">Language Bindings</A><BR><A HREF="http://gtk.themes.org/">Themes</A><BR><A HREF="/bugs.html">Bug Tracker</A><BR></td></tr></table></td></tr></table><BR> <table width=100% cellspacing=0 cellpadding=2 border=0><tr><td bgcolor="#000000"><table width=100% cellspacing=0 cellpadding=4 border=0><tr><td bgcolor="#AAAAEE" nowrap><B>Documentation</B></td></tr><tr><td bgcolor="#FFFFFF" nowrap><A HREF="/faq/">FAQ</A><br><A HREF="/tutorial/">Tutorial</A><BR><A HREF="/api/">API Reference</A><br><A HREF="/books.html">Published Books</A><BR></td></tr></table></td></tr></table><BR> <table width=100% cellspacing=0 cellpadding=2 border=0><tr><td bgcolor="#000000"><table width=100% cellspacing=0 cellpadding=4 border=0><tr><td bgcolor="#AAAAEE" nowrap><B>Projects</B></td></tr><tr><td bgcolor="#FFFFFF" nowrap><A HREF="http://www.pango.org/">Pango</A><BR><A HREF="http://sources.redhat.com/inti/">Inti</A><BR><A HREF="http://www.gnome.org/">GNOME</A><BR><A HREF="http://user.sgic.fi/~tml/gimp/win32/">GTK+ for Win32</A><br><A HREF="http://people.redhat.com/sopwith/gtkfb/">GtkFB (Framebuffer)</A><br><A HREF="http://www.directfb.org/gtk.xml">GTK+ on DirectFB</A><BR><A HREF="/beos/">GTK+ for BeOS</A></td></tr></table></td></tr></table><BR> <table width=100% cellspacing=0 cellpadding=2 border=0><tr><td bgcolor="#000000"><table width=100% cellspacing=0 cellpadding=4 border=0><tr><td bgcolor="#AAAAEE" nowrap><B><B>Applications</B></B></td></tr><tr><td bgcolor="#FFFFFF" nowrap><A HREF="http://www.gimp.org/">GIMP</A><BR><A HREF="http://www.abiword.org/">Abiword</A><BR><A HREF="http://www.lysator.liu.se/~alla/dia/dia.html">Dia</A><BR><A HREF="http://glade.pn.org/">Glade</A><BR><A HREF="http://www.gnucash.org/">GnuCash</A><BR><A HREF="http://www.gnome.org/projects/gnumeric/">Gnumeric</A><BR><BR><A HREF="http://www.gnome.org/applist/">GNOME Software Map</A><br></td></tr></table></td></tr></table><BR> </td> <td bgcolor="#ffffff" valign=top width="99%"><font face="lucida,helvetica"><BODYCLASS="SECT1"BGCOLOR="#FFFFFF"TEXT="#000000"LINK="#0000FF"VLINK="#840084"ALINK="#0000FF"><DIVCLASS="NAVHEADER"><TABLEWIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><THCOLSPAN="3"ALIGN="center">GTK+ 1.2 Tutorial</TH></TR><TR><TDWIDTH="10%"ALIGN="left"VALIGN="bottom"><AHREF="sec-usingitemfactory.html"><<< Previous</A></TD><TDWIDTH="80%"ALIGN="center"VALIGN="bottom">Chapter 14. Menu Widget</TD><TDWIDTH="10%"ALIGN="right"VALIGN="bottom"><AHREF="ch-textwidget.html">Next >>></A></TD></TR></TABLE><HRALIGN="LEFT"WIDTH="100%"></DIV><DIVCLASS="SECT1"><H1CLASS="SECT1"><ANAME="SEC-ITEMFACTORYEXAMPLE">14.4. Item Factory Example</A></H1><P>Here is an example using the GTK item factory.</P><TABLEBORDER="0"BGCOLOR="#E0E0E0"WIDTH="100%"><TR><TD><PRECLASS="PROGRAMLISTING">/* example-start menu itemfactory.c */#include <gtk/gtk.h>#include <strings.h>/* Obligatory basic callback */static void print_hello( GtkWidget *w, gpointer data ){ g_message ("Hello, World!\n");}/* This is the GtkItemFactoryEntry structure used to generate new menus. Item 1: The menu path. The letter after the underscore indicates an accelerator key once the menu is open. Item 2: The accelerator key for the entry Item 3: The callback function. Item 4: The callback action. This changes the parameters with which the function is called. The default is 0. Item 5: The item type, used to define what kind of an item it is. Here are the possible values: NULL -> "<Item>" "" -> "<Item>" "<Title>" -> create a title item "<Item>" -> create a simple item "<CheckItem>" -> create a check item "<ToggleItem>" -> create a toggle item "<RadioItem>" -> create a radio item <path> -> path of a radio item to link against "<Separator>" -> create a separator "<Branch>" -> create an item to hold sub items (optional) "<LastBranch>" -> create a right justified branch */static GtkItemFactoryEntry menu_items[] = { { "/_File", NULL, NULL, 0, "<Branch>" }, { "/File/_New", "<control>N", print_hello, 0, NULL }, { "/File/_Open", "<control>O", print_hello, 0, NULL }, { "/File/_Save", "<control>S", print_hello, 0, NULL }, { "/File/Save _As", NULL, NULL, 0, NULL }, { "/File/sep1", NULL, NULL, 0, "<Separator>" }, { "/File/Quit", "<control>Q", gtk_main_quit, 0, NULL }, { "/_Options", NULL, NULL, 0, "<Branch>" }, { "/Options/Test", NULL, NULL, 0, NULL }, { "/_Help", NULL, NULL, 0, "<LastBranch>" }, { "/_Help/About", NULL, NULL, 0, NULL },};void get_main_menu( GtkWidget *window, GtkWidget **menubar ){ GtkItemFactory *item_factory; GtkAccelGroup *accel_group; gint nmenu_items = sizeof (menu_items) / sizeof (menu_items[0]); accel_group = gtk_accel_group_new (); /* This function initializes the item factory. Param 1: The type of menu - can be GTK_TYPE_MENU_BAR, GTK_TYPE_MENU, or GTK_TYPE_OPTION_MENU. Param 2: The path of the menu. Param 3: A pointer to a gtk_accel_group. The item factory sets up the accelerator table while generating menus. */ item_factory = gtk_item_factory_new (GTK_TYPE_MENU_BAR, "<main>", accel_group); /* This function generates the menu items. Pass the item factory, the number of items in the array, the array itself, and any callback data for the the menu items. */ gtk_item_factory_create_items (item_factory, nmenu_items, menu_items, NULL); /* Attach the new accelerator group to the window. */ gtk_window_add_accel_group (GTK_WINDOW (window), accel_group); if (menubar) /* Finally, return the actual menu bar created by the item factory. */ *menubar = gtk_item_factory_get_widget (item_factory, "<main>");}int main( int argc, char *argv[] ){ GtkWidget *window; GtkWidget *main_vbox; GtkWidget *menubar; gtk_init (&argc, &argv); window = gtk_window_new (GTK_WINDOW_TOPLEVEL); gtk_signal_connect (GTK_OBJECT (window), "destroy", GTK_SIGNAL_FUNC (gtk_main_quit), "WM destroy"); gtk_window_set_title (GTK_WINDOW(window), "Item Factory"); gtk_widget_set_usize (GTK_WIDGET(window), 300, 200); main_vbox = gtk_vbox_new (FALSE, 1); gtk_container_border_width (GTK_CONTAINER (main_vbox), 1); gtk_container_add (GTK_CONTAINER (window), main_vbox); gtk_widget_show (main_vbox); get_main_menu (window, &menubar); gtk_box_pack_start (GTK_BOX (main_vbox), menubar, FALSE, TRUE, 0); gtk_widget_show (menubar); gtk_widget_show (window); gtk_main (); return(0);}/* example-end */</PRE></TD></TR></TABLE><P>For now, there's only this example. An explanation and lots 'o' commentswill follow later.</P></DIV><DIVCLASS="NAVFOOTER"><HRALIGN="LEFT"WIDTH="100%"><TABLEWIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top"><AHREF="sec-usingitemfactory.html"><<< Previous</A></TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="gtk-tut.html">Home</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top"><AHREF="ch-textwidget.html">Next >>></A></TD></TR><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top">Using ItemFactory</TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="ch-menuwidget.html">Up</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top">Text Widget</TD></TR></TABLE></DIV> </td> </tr></table> </td> </tr></table></body></BODY></HTML>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -