设置SublimeText3支持中文输入

复制如下的代码为sublime_imfix.c文件并放到sublime_text的安装目录下，默认为/opt/sublime_text

/*
    sublime_imfix.c
    Use LD_PRELOAD to interpose some function to fix sublime input method support for linux.
    By Cjacker Huang 

    gcc -shared -o libsublime-imfix.so sublime_imfix.c  `pkg-config --libs --cflags gtk+-2.0` -fPIC
    LD_PRELOAD=./libsublime-imfix.so sublime_text
    */
    #include 
    #include 
    typedef GdkSegment GdkRegionBox;

    struct _GdkRegion
    {
      long size;
      long numRects;
      GdkRegionBox *rects;
      GdkRegionBox extents;
    };

    GtkIMContext *local_context;

    void gdk_region_get_clipbox (const GdkRegion *region,
                GdkRectangle    *rectangle)
    {
      g_return_if_fail (region != NULL);
      g_return_if_fail (rectangle != NULL);

      rectangle->x = region->extents.x1;
      rectangle->y = region->extents.y1;
      rectangle->width = region->extents.x2 - region->extents.x1;
      rectangle->height = region->extents.y2 - region->extents.y1;
      GdkRectangle rect;
      rect.x = rectangle->x;
      rect.y = rectangle->y;
      rect.width = 0;
      rect.height = rectangle->height;
      //The caret width is 2;
      //Maybe sometimes we will make a mistake, but for most of the time, it should be the caret.
      if(rectangle->width == 2 && GTK_IS_IM_CONTEXT(local_context)) {
            gtk_im_context_set_cursor_location(local_context, rectangle);
      }
    }

    //this is needed, for example, if you input something in file dialog and return back the edit area
    //context will lost, so here we set it again.

    static GdkFilterReturn event_filter (GdkXEvent *xevent, GdkEvent *event, gpointer im_context)
    {
        XEvent *xev = (XEvent *)xevent;
        if(xev->type == KeyRelease && GTK_IS_IM_CONTEXT(im_context)) {
           GdkWindow * win = g_object_get_data(G_OBJECT(im_context),"window");
           if(GDK_IS_WINDOW(win))
             gtk_im_context_set_client_window(im_context, win);
        }
        return GDK_FILTER_CONTINUE;
    }

    void gtk_im_context_set_client_window (GtkIMContext *context,
              GdkWindow    *window)
    {
      GtkIMContextClass *klass;
      g_return_if_fail (GTK_IS_IM_CONTEXT (context));
      klass = GTK_IM_CONTEXT_GET_CLASS (context);
      if (klass->set_client_window)
        klass->set_client_window (context, window);

      if(!GDK_IS_WINDOW (window))
        return;
      g_object_set_data(G_OBJECT(context),"window",window);
      int width = gdk_window_get_width(window);
      int height = gdk_window_get_height(window);
      if(width != 0 && height !=0) {
        gtk_im_context_focus_in(context);
        local_context = context;
      }
      gdk_window_add_filter (window, event_filter, context);
    }

安装编译所需的工具，如果已经安装则跳过

sudo apt-get install build-essential  
sudo apt-get install libgtk2.0-dev

安装完成后，进入sublime_text的安装目录，在命令行下编译，生成-o之后的文件，记住它的位置：

  gcc -shared -o libsublime-imfix.so sublime_imfix.c  `pkg-config --libs --cflags gtk+-2.0` -fPIC

命令行中进入/usr/share/applications目录下，用subl打开sublime_text.desktop文件，即sublime_text的类似于快捷方式的文件，可能名字会有不一样，可先用ls查看一下文件名字
```
sudo subl sublime_text.desktop
```
然后将三个对应Exec更改为如下所示：

```shell
Exec=bash -c “LD_PRELOAD=/opt/sublime_text/libsublime-imfix.so /opt/sublime_text/sublime_text %F”

Exec=bash -c “LD_PRELOAD=/opt/sublime_text/libsublime-imfix.so /opt/sublime_text/sublime_text -n”

Exec=bash -c “LD_PRELOAD=/opt/sublime_text/libsublime-imfix.so /opt/sublime_text/sublime_text —command new_file”


  **注意这里一定要是双引号**，因为用单引号会出现只弹出Sublime_text，不打开文件等情况。网上好多教程在这一步都是单引号，可能是版本已经不适用,保存文件，现在用subl打开文本已经支持中文。 

  

  # 将SublimeText设置为默认编辑器

  在命令行输入以下命令：

  ```shell
  sudo subl /etc/gnome/defaults.list

在里面ctrl+h替换所有gedit.desktop为sublime_text.desktop保存即可。