GTK+2.0编程范例代码分析-第二章(2)

阳光穿透心脏的1/2处 2022-08-17 14:09 35阅读 0赞

转载请注明:[http://blog.csdn.net/hubbybob1/article/details/50034387][http_blog.csdn.net_hubbybob1_article_details_50034387]  
本文主要是针对 GTK+2.0编程范例–宋国伟老师的书内的代码做一些注释,兼并讨论一下GTK+3.0与2.0的区别.其安装,在网上有很多讲解.  
查看各个函数的的说明,就得看说明文档,下面这个网址很好,是GTK+3.0API的目录:  
[https://developer.gnome.org/gtk3/stable/][https_developer.gnome.org_gtk3_stable]  
或者下载我上传的3.0说明文档,查看:  
[http://download.csdn.net/detail/hubbybob1/9219553][http_download.csdn.net_detail_hubbybob1_9219553]

2.3创建工具条  
代码toolbar.c如下所示：

//toolbar.c
    #include <gtk/gtk.h>
    
    void on_button_clicked(GtkButton* button,gpointer data)
    {
            g_print("你点击的按钮是 %s \n",(gchar*)data);
    }
    
    int main(int argc, char* argv[])
    {
        GtkWidget* window;
        GtkWidget* box;
        GtkWidget* toolbar;
        GtkWidget* entry;
        GtkWidget* lable;//定义菜单条
    
      gtk_init(&argc,&argv);
    
     //window 
        window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
        gtk_window_set_title(GTK_WINDOW(window),"添加工具条");
        gtk_container_set_border_width(GTK_CONTAINER(window),20);
        g_signal_connect(G_OBJECT(window),"destroy",G_CALLBACK(gtk_main_quit),NULL);
    
    //box
        box = gtk_vbox_new(FALSE,0);//非均匀排放
        gtk_container_add(GTK_CONTAINER(window),box);
    
    //toolbar
      toolbar = gtk_toolbar_new();
      gtk_toolbar_insert_stock(GTK_TOOLBAR(toolbar),               //工具条 参考注释1
                               GTK_STOCK_NEW,                      //新建图标的系统固有资源
                               "新建一个文件","新建",              //提示信息
                               GTK_SIGNAL_FUNC(on_button_clicked), //回调函数
                               (gpointer)("新建"),-1);             //回调参数， 插入按钮的位置 -1：表示最后，NULL：依次
      gtk_toolbar_insert_stock(GTK_TOOLBAR(toolbar),
                               GTK_STOCK_OPEN,                  //打开图标
                               "打开一个文件","打开",
                               GTK_SIGNAL_FUNC(on_button_clicked),
                               (gpointer)("打开"),-1);
      gtk_toolbar_insert_stock(GTK_TOOLBAR(toolbar),
                               GTK_STOCK_SAVE,                  //保存图标
                               "保存当前文件","保存",
                               GTK_SIGNAL_FUNC(on_button_clicked),
                               (gpointer)("保存"),-1);
    
      gtk_toolbar_append_space(GTK_TOOLBAR(toolbar));//在工具条内添加竖线间隔
    
    //lable
      lable = gtk_label_new(" 文件名：");
      gtk_toolbar_append_widget(GTK_TOOLBAR(toolbar),lable,"这是一个标签","标签");//添加自己创建你的控件
    
    //entry
      entry = gtk_entry_new();
      gtk_toolbar_append_widget(GTK_TOOLBAR(toolbar),entry,"这是一个录入条","录入");
      gtk_toolbar_append_space(GTK_TOOLBAR(toolbar));
    
      gtk_toolbar_insert_stock(GTK_TOOLBAR(toolbar),
                               GTK_STOCK_CUT,     
                               "剪切","剪切",
                               GTK_SIGNAL_FUNC(on_button_clicked),
                               (gpointer)("剪切"),-1);
      gtk_toolbar_insert_stock(GTK_TOOLBAR(toolbar),
                               GTK_STOCK_COPY,
                               "复制","复制",
                               GTK_SIGNAL_FUNC(on_button_clicked),
                               (gpointer)("复制"),-1);
      gtk_toolbar_insert_stock(GTK_TOOLBAR(toolbar),
                               GTK_STOCK_PASTE,
                               "粘贴","粘贴",
                               GTK_SIGNAL_FUNC(on_button_clicked),
                               (gpointer)("粘贴"),-1);
    
      gtk_toolbar_append_space(GTK_TOOLBAR(toolbar));
    
      gtk_toolbar_insert_stock(GTK_TOOLBAR(toolbar),
                               GTK_STOCK_QUIT,
                               "退出","退出",
                               GTK_SIGNAL_FUNC(on_button_clicked),
                               (gpointer)("退出"),-1);
      gtk_toolbar_set_style(GTK_TOOLBAR(toolbar),GTK_TOOLBAR_ICONS);//设定工具条的外观，参考注释2
      gtk_toolbar_set_icon_size(GTK_TOOLBAR(toolbar),GTK_ICON_SIZE_SMALL_TOOLBAR);//设定工具图标的大小，参考注释3
    
      gtk_box_pack_start(GTK_BOX(box),toolbar,FALSE,FALSE,0);
      gtk_widget_show_all(window);
      gtk_main();
      return FALSE;
    
    
    }
    //1.最关键的函数是gtk_toolbar_insert_stock, 向工具条内插入库固有资源，
    //也就是第2个参数，
    
    /*2.gtk_toolbar_set_style 设定工具条的外观 GTK_TOOLBAR_ICONS 只显示图标 GTK_TOOLBAR_TEXT 只显示文字 GTK_TOOLBAR_BOTH 两个都显示，竖直显示 GTK_TOOLBAR_BOTH_HORIZ 图标与文字并排显示 */
    
    //3.gtk_toolbar_set_icon_size设定大小的参数如下：
    /*enum GtkIconSize GTK_ICON_SIZE_INVALID Invalid size. GTK_ICON_SIZE_MENU Size appropriate for menus (16px). GTK_ICON_SIZE_SMALL_TOOLBAR Size appropriate for small toolbars (16px). GTK_ICON_SIZE_LARGE_TOOLBAR Size appropriate for large toolbars (24px) GTK_ICON_SIZE_BUTTON Size appropriate for buttons (16px) GTK_ICON_SIZE_DND Size appropriate for drag and drop (32px) GTK_ICON_SIZE_DIALOG Size appropriate for dialogs (48px) */
    makefile文件
    CC=gcc
    all:
       $(CC) -o toolbar toolbar.c `pkg-config --cflags --libs gtk+-2.0`

运行的结果如下：  
![这里写图片描述][20160107200902407]  
当点击时的打印信息如下：  
![这里写图片描述][20160107201003745]  
这是2.0的结果，如果使用3.0编译就会出错：  
![这里写图片描述][20160107201514778]  
因此对于gtk3的代码主要变化是gtk\_toolbar\_insert取代gtk\_toolbar\_insert\_stock，代码写辑更加简单了,使g\_signal\_connect来产生回调函数

//toolbar1.c
    #include <gtk/gtk.h>
    int main( int argc, char *argv[])
    {
    
      GtkWidget *window;
      GtkWidget *vbox;
      GtkWidget *toolbar;
      GtkToolItem *new;
      GtkToolItem *open;
      GtkToolItem *save;
      GtkToolItem *sep;
      GtkToolItem *exit;
    
      gtk_init(&argc, &argv);
    
      window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
      gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
      gtk_window_set_default_size(GTK_WINDOW(window), 250, 200);
      gtk_window_set_title(GTK_WINDOW(window), "toolbar");
    
       vbox = gtk_vbox_new(FALSE, 0);
       gtk_container_add(GTK_CONTAINER(window), vbox);
    
       toolbar = gtk_toolbar_new();
       gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_ICONS);
    
       gtk_container_set_border_width(GTK_CONTAINER(toolbar), 2);
    
       new = gtk_tool_button_new_from_stock(GTK_STOCK_NEW);
       gtk_toolbar_insert(GTK_TOOLBAR(toolbar), new, -1);
    
       open = gtk_tool_button_new_from_stock(GTK_STOCK_OPEN);
       gtk_toolbar_insert(GTK_TOOLBAR(toolbar), open, -1);
    
       save = gtk_tool_button_new_from_stock(GTK_STOCK_SAVE);
       gtk_toolbar_insert(GTK_TOOLBAR(toolbar), save, -1);
    
       sep = gtk_separator_tool_item_new();
       gtk_toolbar_insert(GTK_TOOLBAR(toolbar), sep, -1); 
    
       exit = gtk_tool_button_new_from_stock(GTK_STOCK_QUIT);
       gtk_toolbar_insert(GTK_TOOLBAR(toolbar), exit, -1);
    
       gtk_box_pack_start(GTK_BOX(vbox), toolbar, FALSE, FALSE, 5);
    
       g_signal_connect(G_OBJECT(exit), "clicked",  G_CALLBACK(gtk_main_quit), NULL);
    
       g_signal_connect_swapped(G_OBJECT(window), "destroy",  G_CALLBACK(gtk_main_quit), NULL);
    
       gtk_widget_show_all(window);
       gtk_main();
       return 0;
    }//编译代码
    gcc -o toolbar1 toolbar1.c `pkg-config --cflags --libs gtk+-3.0`

运行的结果：  
![这里写图片描述][20160107202311740]  
系统图标有很多，主要在gtk3-Stock-Items.html内会有定义，下面列出了一些  
![这里写图片描述][20160107212954749]

[http_blog.csdn.net_hubbybob1_article_details_50034387]: http://blog.csdn.net/hubbybob1/article/details/50034387
[https_developer.gnome.org_gtk3_stable]: https://developer.gnome.org/gtk3/stable/
[http_download.csdn.net_detail_hubbybob1_9219553]: http://download.csdn.net/detail/hubbybob1/9219553
[20160107200902407]: /images/20220731/8cab8fef3cb040719db4d812238895dc.png
[20160107201003745]: /images/20220731/6109cb202c8444969bc1e4fc6e086c95.png
[20160107201514778]: /images/20220731/50a3152d26654788b65eab2e7e7c5076.png
[20160107202311740]: /images/20220731/6eb365bcee0e438da36d2401751353d0.png
[20160107212954749]: /images/20220731/017e530b4b1e4df5ba05f1b9b60f554d.png