完美解决Ubuntu下Sublime Text 2中文输入(Fcitx)

sudo apt-get install build-essential libgtk2.0-dev
gcc -shared -o libsublime-imfix.so sublime_imfix.c `pkg-config --libs --cflags gtk+-2.0` -fPIC
其中sublime_imfix.c代码见文末.

sublime_text.sh
#!/bin/bash
sh -c "LD_PRELOAD=/home/eechen/apps/sublime_text_2/libsublime-imfix.so /home/eechen/apps/sublime_text_2/sublime_text"

sublime_text.desktop
#!/usr/bin/env xdg-open
[Desktop Entry]
Encoding=UTF-8
Type=Application
Name=sublime_text
Icon=/home/eechen/apps/sublime_text_2/Icon/48x48/sublime_text.png
Exec=sh -c "LD_PRELOAD=/home/eechen/apps/sublime_text_2/libsublime-imfix.so /home/eechen/apps/sublime_text_2/sublime_text"
Comment[zh_CN]=Sublime Text 2

Sublime Text 用户配置文件
Linux: ~/.config/sublime-text-2
Windows: %APPDATA%\Sublime Text 2

设置字体为DejaVu Sans Mono:
菜单Preferences - Settings User内容:
{
    "color_scheme": "Packages/Color Scheme - Default/Monokai.tmTheme",
    "font_size": 12,
    "font_face": "DejaVu Sans Mono"
}

Windows上右键快捷菜单注册表:
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\*\shell\OpenWithSublimeText]
@="Open with Sublime Text"
"Icon"="D:\\Sublime Text 2\\sublime_text.exe"
[HKEY_CLASSES_ROOT\*\shell\OpenWithSublimeText\command]
@="\"D:\\Sublime Text 2\\sublime_text.exe\" \"%1\""

sublime_imfix.c 代码:
/*
sublime-imfix.c
Use LD_PRELOAD to interpose some function to fix sublime input method support for linux.
By Cjacker Huang <jianzhong.huang at i-soft.com.cn>

sudo apt-get install build-essential libgtk2.0-dev
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 <gtk/gtk.h>
#include <gdk/gdkx.h>
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);
}