linux应用程序开发指南之21-19.pdf

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1、下载附录A GnomeHello源代码这里是本书中多次用到的 G n o m e H e l l o的源代码。它是学习 G n o m e编程非常好的材料。源代码共分为五个文件，分别是h e l l o.c、a p p.c、a p p.h、m e n u.c以及m e n u.h。A.1 第一部分：hello.c#include#include#include app.hstatic void session_die(GnomeClient*client,gpointer client_data);static gint save_session(GnomeClient*client,gint

2、 phase,GnomeSaveStyle save_style,gint is_shutdown,GnomeInteractStyle interact_style,gint is_fast,gpointer client_data);static int greet_mode=FALSE;static char*message =NULL;static char*geometry=NULL;struct poptOption options=g r e e t ,g,P O P T _ A R G _ N O N E,&g r e e t _ m o d e,0,N_(Say hello

3、to specific people listed on the command line),N U L L,m e s s a g e ,m,P O P T _ A R G _ S T R I N G,&m e s s a g e,0,N_(Specify a message other than Hello,World!),N _(M E S S A G E ),第五部分附录 g e o m e t r y ,0,P O P T _ A R G _ S T R I N G,&g e o m e t r y,0,N_(Specify the geometry of the main wind

4、ow),N _(G E O M E T R Y ),N U L L,0,0,N U L L,0,N U L L,N U L L;int main(int argc,char*argv)GtkWidget*app;poptContext pctx;char*args;int i;GSList*greet=NULL;GnomeClient*client;bindtextdomain(PACKAGE,GNOMELOCALEDIR);t e x t d o m a i n(P A C K A G E);gnome_init_with_popt_table(PACKAGE,VERSION,argc,ar

5、gv,options,0,&pctx);/*参数分析*/args=poptGetArgs(pctx);if(greet_mode&args)i=0;while(argsi!=NULL)greet=g_slist_prepend(greet,argsi);+i;294使用第五部分 附录下载/*Put them in order*/greet=g_slist_reverse(greet);else if(greet_mode&args=NULL)g_error(_(You must specify someone to greet.);else if(args!=NULL)g_error(_(Co

6、mmand line arguments are only allowed with-greet.);e l s e g_assert(!greet_mode&args=NULL);p o p t F r e e C o n t e x t(p c t x);/*会话管理*/client=gnome_master_client();gtk_signal_connect(GTK_OBJECT(client),save_yourself,GTK_SIGNAL_FUNC(save_session),argv0);gtk_signal_connect(GTK_OBJECT(client),die,GT

7、K_SIGNAL_FUNC(session_die),NULL);app=hello_app_new(message,geometry,greet);g _ s l i s t _ f r e e(g r e e t);g t k _ w i d g e t _ s h o w _ a l l(a p p);g t k _ m a i n();return 0;static gintsave_session(GnomeClient*client,gint phase,GnomeSaveStyle save_style,gint is_shutdown,GnomeInteractStyle in

8、teract_style,gint is_fast,gpointer client_data)gchar*argv;guint argc;argv=g_malloc0(sizeof(gchar*)*4);argc=1;argv0=client_data;附录A GnomeHello源代码使用295下载if(message)argv1=-message;argv2=message;argc=3;gnome_client_set_clone_command(client,argc,argv);gnome_client_set_restart_command(client,argc,argv);re

9、turn TRUE;static voidsession_die(GnomeClient*client,gpointer client_data)gtk_main_quit();A.2 第二部分：app.h#ifndef GNOMEHELLO_APP_H#define GNOMEHELLO_APP_H#include GtkWidget*hello_app_new(const gchar*message,const gchar*geometry,GSList*greet);void hello_app_close(GtkWidget*app);#e n d i fA.3 第三部分：app.c#

10、include#include app.h#include menus.h/*保留一个所有打开的窗口的链表*/static GSList*app_list=NULL;static gint delete_event_cb(GtkWidget*w,GdkEventAny*e,gpointer data);static void button_click_cb(GtkWidget*w,gpointer data);GtkWidget*hello_app_new(const gchar*message,const gchar*geometry,GSList*greet)296使用第五部分 附录下载G

11、tkWidget*app;GtkWidget*button;GtkWidget*label;GtkWidget*status;GtkWidget*frame;app=gnome_app_new(PACKAGE,_(Gnome Hello);frame=gtk_frame_new(NULL);button=gtk_button_new();label =gtk_label_new(message?message:_(Hello,World!);gtk_window_set_policy(GTK_WINDOW(app),FALSE,TRUE,FALSE);gtk_window_set_defaul

12、t_size(GTK_WINDOW(app),250,350);gtk_window_set_wmclass(GTK_WINDOW(app),hello,GnomeHello);gtk_frame_set_shadow_type(GTK_FRAME(frame),GTK_SHADOW_IN);gtk_container_set_border_width(GTK_CONTAINER(button),10);gtk_container_add(GTK_CONTAINER(button),label);gtk_container_add(GTK_CONTAINER(frame),button);gn

13、ome_app_set_contents(GNOME_APP(app),frame);status=gnome_appbar_new(FALSE,TRUE,GNOME_PREFERENCES_NEVER);gnome_app_set_statusbar(GNOME_APP(app),status);h e l l o _ i n s t a l l _ m e n u s _ a n d _ t o o l b a r(a p p);g t k _ s i g n a l _ c o n n e c t(G T K _ O B J E C T(a p p),d e l e t e _ e v

14、e n t ,G T K _ S I G N A L _ F U N C(d e l e t e _ e v e n t _ c b),N U L L);g t k _ s i g n a l _ c o n n e c t(G T K _ O B J E C T(b u t t o n),c l i c k e d ,G T K _ S I G N A L _ F U N C(b u t t o n _ c l i c k _ c b),l a b e l);if(geometry!=NULL)gint x,y,w,h;if(gnome_parse_geometry(geometry,&x,

15、&y,&w,&h)if(x!=-1)附录A GnomeHello源代码使用297下载gtk_widget_set_uposition(app,x,y);if(w!=-1)gtk_window_set_default_size(GTK_WINDOW(app),w,h);else g_error(_(Could not parse geometry string%s),geometry);if(greet!=NULL)GtkWidget*dialog;gchar*greetings=g_strdup(_(Special Greetings to:n);GSList*tmp=greet;while(

16、tmp!=NULL)gchar*old=greetings;greetings=g_strconcat(old,(gchar*)tmp-data,n ,N U L L);g _ f r e e(o l d);tmp=g_slist_next(tmp);dialog=gnome_ok_dialog(greetings);g _ f r e e(g r e e t i n g s);gnome_dialog_set_parent(GNOME_DIALOG(dialog),GTK_WINDOW(app);app_list=g_slist_prepend(app_list,app);return ap

17、p;void hello_app_close(GtkWidget*app)298使用第五部分 附录下载g _ r e t u r n _ i f _ f a i l(G N O M E _ I S _ A P P(a p p);app_list=g_slist_remove(app_list,app);g t k _ w i d g e t _ d e s t r o y(a p p);if(app_list=NULL)/*No windows remaining*/g t k _ m a i n _ q u i t();static gint delete_event_cb(GtkWidge

18、t*window,GdkEventAny*e,gpointer data)h e l l o _ a p p _ c l o s e(w i n d o w);/*阻止销毁窗口，因为我们在h e l l o _ a p p _ c l o s e中销毁它*/return TRUE;static void button_click_cb(GtkWidget*w,gpointer data)GtkWidget*label;gchar*text;gchar*tmp;label=GTK_WIDGET(data);gtk_label_get(GTK_LABEL(label),&text);tmp=g_s

19、trdup(text);g _ s t r r e v e r s e(t m p);gtk_label_set_text(GTK_LABEL(label),tmp);g _ f r e e(t m p);A.4 第四部分：menus.h#ifndef GNOMEHELLO_MENUS_H#define GNOMEHELLO_MENUS_H#include void hello_install_menus_and_toolbar(GtkWidget*app);附录A GnomeHello源代码使用299下载#e n d i fA.5 第五部分：menus.c#include#include m

20、enus.h#include app.hstatic void nothing_cb(GtkWidget*widget,gpointer data);static void new_app_cb(GtkWidget*widget,gpointer data);static void close_cb (GtkWidget*widget,gpointer data);static void exit_cb (GtkWidget*widget,gpointer data);static void about_cb (GtkWidget*widget,gpointer data);static Gn

21、omeUIInfo file_menu =GNOMEUIINFO_MENU_NEW_ITEM(N_(_New Hello),N_(Create a new hello),new_app_cb,NULL),GNOMEUIINFO_MENU_OPEN_ITEM(nothing_cb,NULL),GNOMEUIINFO_MENU_SAVE_ITEM(nothing_cb,NULL),GNOMEUIINFO_MENU_SAVE_AS_ITEM(nothing_cb,NULL),G N O M E U I I N F O _ S E P A R A T O R,GNOMEUIINFO_MENU_CLOS

22、E_ITEM(close_cb,NULL),GNOMEUIINFO_MENU_EXIT_ITEM(exit_cb,NULL),G N O M E U I I N F O _ E N D;static GnomeUIInfo edit_menu =GNOMEUIINFO_MENU_CUT_ITEM(nothing_cb,NULL),GNOMEUIINFO_MENU_COPY_ITEM(nothing_cb,NULL),GNOMEUIINFO_MENU_PASTE_ITEM(nothing_cb,NULL),GNOMEUIINFO_MENU_SELECT_ALL_ITEM(nothing_cb,N

23、ULL),GNOMEUIINFO_MENU_CLEAR_ITEM(nothing_cb,NULL),GNOMEUIINFO_MENU_UNDO_ITEM(nothing_cb,NULL),GNOMEUIINFO_MENU_REDO_ITEM(nothing_cb,NULL),GNOMEUIINFO_MENU_FIND_ITEM(nothing_cb,NULL),GNOMEUIINFO_MENU_FIND_AGAIN_ITEM(nothing_cb,NULL),GNOMEUIINFO_MENU_REPLACE_ITEM(nothing_cb,NULL),GNOMEUIINFO_MENU_PROP

24、ERTIES_ITEM(nothing_cb,NULL),G N O M E U I I N F O _ E N D;static GnomeUIInfo help_menu =300使用第五部分 附录下载GNOMEUIINFO_HELP(gnome-hello),GNOMEUIINFO_MENU_ABOUT_ITEM(about_cb,NULL),G N O M E U I I N F O _ E N D;static GnomeUIInfo menu =G N O M E U I I N F O _ M E N U _ F I L E _ T R E E(f i l e _ m e n u

25、),G N O M E U I I N F O _ M E N U _ E D I T _ T R E E(e d i t _ m e n u),G N O M E U I I N F O _ M E N U _ H E L P _ T R E E(h e l p _ m e n u),G N O M E U I I N F O _ E N D;static GnomeUIInfo toolbar =GNOMEUIINFO_ITEM_STOCK(N_(New),N_(Create a new hello),nothing_cb,GNOME_STOCK_PIXMAP_NEW),G N O M E

26、 U I I N F O _ S E P A R A T O R,GNOMEUIINFO_ITEM_STOCK(N_(Prev),N_(Previous hello),nothing_cb,GNOME_STOCK_PIXMAP_BACK),GNOMEUIINFO_ITEM_STOCK(N_(Next),N_(Next hello),nothing_cb,GNOME_STOCK_PIXMAP_FORWARD),G N O M E U I I N F O _ E N D;void hello_install_menus_and_toolbar(GtkWidget*app)gnome_app_cre

27、ate_toolbar_with_data(GNOME_APP(app),toolbar,app);gnome_app_create_menus_with_data(GNOME_APP(app),menu,app);gnome_app_install_menu_hints(GNOME_APP(app),menu);static void nothing_cb(GtkWidget*widget,gpointer data)GtkWidget*dialog;GtkWidget*app;app=(GtkWidget*)data;dialog=gnome_ok_dialog_parented(_(Th

28、is does nothing;it is only a demonstration.),G T K _ W I N D O W(a p p);附录A GnomeHello源代码使用301下载static void new_app_cb(GtkWidget*widget,gpointer data)GtkWidget*app;app=hello_app_new(_(Hello,World!),NULL,NULL);g t k _ w i d g e t _ s h o w _ a l l(a p p);static void close_cb(GtkWidget*widget,gpointer

29、 data)GtkWidget*app;app=(GtkWidget*)data;h e l l o _ a p p _ c l o s e(a p p);static void exit_cb(GtkWidget*widget,gpointer data)g t k _ m a i n _ q u i t();static void about_cb(GtkWidget*widget,gpointer data)static GtkWidget*dialog=NULL;GtkWidget*app;app=(GtkWidget*)data;if(dialog!=NULL)g _ a s s e

30、 r t(G T K _ W I D G E T _ R E A L I Z E D(d i a l o g);g d k _ w i n d o w _ s h o w(d i a l o g-w i n d o w);g d k _ w i n d o w _ r a i s e(d i a l o g-w i n d o w);e l s e const gchar*authors=Havoc Pennington,N U L L;gchar*logo=gnome_pixmap_file(gnome-hello-logo.png);302使用第五部分 附录下载dialog=gnome_a

31、bout_new(_(GnomeHello),VERSION,(C)1999 Havoc Pennington,a u t h o r s,_(A sample GNOME application.),l o g o);g _ f r e e(l o g o);g t k _ s i g n a l _ c o n n e c t(G T K _ O B J E C T(d i a l o g),d e s t r o y ,G T K _ S I G N A L _ F U N C(g t k _ w i d g e t _ d e s t r o y e d),&d i a l o g);gnome_dialog_set_parent(GNOME_DIALOG(dialog),GTK_WINDOW(app);g t k _ w i d g e t _ s h o w(d i a l o g);附录A GnomeHello源代码使用303下载