Linux下Sublime Text 2&3中文输入解决方案

Sublime Text 2&3是个不错的代码编辑器，在Win平台下使用没有什么问题，但是在Linux平台下出现了语言支持问题，不支持中文输入，网上搜了很多教程，最终找到解决办法。下面贴出解决方案： 1. 保存下面的代码为sublime_imfix.c

/*
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); 
}

2. 编译动态库：编译之前请安装编译环境和GTK

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

然后编译

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

3.编译之后移动到Sublime Text 2&3的安装目录，然后执行下面的命令

#cd /opt/sublime_text/
#LD_PRELOAD=./libsublime-imfix.so sublime_text

按照别人说的，到此就可以支持中文了，可是我发现还是无法输入中文，而且有如下报错：

ERROR: ld.so: object 'libsublime-imfix.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.

再一次鄙视一下百度，用Google搜索了一下得到了答案，路径要写完整的绝对路径，因此，将以上命令修改为：

#LD_PRELOAD=/opt/sublime_text/libsublime-imfix.so ./sublime_text

打开之后可以正常输入中文，但是我们每次都这样打开Sublime Text 2&3，未免太麻烦，通过修改desktop文件实现：复制 libsublime-imfix.so 至 /usr/lib/或者加上软连接

mv libsublime-imfix.so /usr/lib

然后修改sublime_text.desktop文件

#vim /usr/share/applications/sublime_text.desktop

将Exec=/opt/sublime_text/sublime_text %F修改为Exec=bash -c 'LD_PRELOAD=/usr/lib/libsublime-imfix.so /opt/sublime_text/sublime_text' %F 将Exec=/opt/sublime_text/sublime_text -n修改为Exec=bash -c 'LD_PRELOAD=/usr/lib/libsublime-imfix.so /opt/sublime_text/sublime_text' -n 如此，完美解决中文输入问题。不过还是有个小小的Bug，选择框无法跟随光标，暂时没有解决方案。 [caption id="attachment_135" align="aligncenter" width="300"]

Sublime中文输入演示[/caption] 参考文章：http://my.oschina.net/tsl0922/blog/113495?p=4#comments