(转)Ubuntu13.4系统下SublimeText2中fcitx中文输入法的解决方法

前几天把Ubuntu升级到了13.04 beta 2,顺便安装了fcitx 搜狗输入法,但是发现在sublime text 2中无法输入中文,之前在ubuntu 12.04.2中fcitx正常输入的,只是有一些小问题。
本着发现问题,解决问题的原则,咱就找解决方法呗,经过Google和论坛发帖,找到了解决方法。
http://my.oschina.net/Khiyuan/blog/98713
http://forum.suse.org.cn/viewtopic.php?f=16&t=333
http://www.sublimetext.com/forum/viewtopic.php?f=3&t=7006&start=10#p41343
在这里感谢oschina的@Khiyuan 和 bruce.oy 这两位朋友耐心的为我解决问题。接下来咱就把方法写出来。

编译共享内库
  1. 保存下述代码为 sublime-imfix.c 文件
    /*
    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>
    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);
    }
  2. 安装C/C++的编译环境和gtk libgtk2.0-dev
    sudo apt-get install build-essential
    sudo apt-get install libgtk2.0-dev
  3. 编译共享内库
    gcc -shared -o libsublime-imfix.so sublime_imfix.c  `pkg-config --libs --cflags gtk+-2.0` -fPIC
  4. 打开终端进入applications修改sublime.desktop
    [Desktop Entry]
    Version=1.0
    Name=Sublime Text 2
    # Only KDE 4 seems to use GenericName, so we reuse the KDE strings.
    # From Ubuntu's language-pack-kde-XX-base packages, version 9.04-20090413.
    GenericName=Text Editor
    Exec=bash -c 'LD_PRELOAD=/usr/lib/libsublime-imfix.so sublime'
    #Exec=sublime
    Terminal=false
    Icon=/opt/Sublime Text 2/Icon/48x48/sublime_text.png
    Type=Application
    Categories=TextEditor;IDE;Development
    X-Ayatana-Desktop-Shortcuts=NewWindow
    [NewWindow Shortcut Group]
    Name=New Window
    Exec=bash -c 'LD_PRELOAD=/usr/lib/libsublime-imfix.so sublime' -n
    TargetEnvironment=Unity

来源:http://my.oschina.net/wugaoxing/blog/121281

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