Sublime Text 2 輸入中文 (ubntu)

昨晚安裝了Sublime Text，結果發現不能輸入中文，這是一個很扯淡的問題。於是到網上找了教程，在此作記錄。

1、將下面的源碼保存文件，例如 sublime-imfix.c

/*
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、安裝C/C++的編譯環境和gtk libgtk2.0-dev（這兩個安裝後貌似得重啓機子纔有效，我昨晚編譯失敗，今早起來運行居然成功了）

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

3、進行編譯，生成so文件

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

至此，就可以在終端運行時加入命令，使Sublime Text 2輸入中文：

LD_PRELOAD=./libsublime-imfix.so sublime_text_2

爲了方便，不用每次都輸入命令，我們還得自己配置下啓動文件：

sudo vi sublime_text_2_cn.sh

輸入以下內容：

SUBLIME_HOME="/usr/local/lib/Sublime\ Text\ 2"
SO_LIB="/usr/local/lib/myso/libsublime-imfix.so"
sh -c "LD_PRELOAD=$SO_LIB $SUBLIME_HOME/sublime_text $@"

將sh腳本移動到自己想要存放的目錄後，授權：

sudo chmod 777 sublime_text_2_cn.sh

建立鏈接：

sudo ln -s /usr/local/lib/myso/sublime_text_2_cn.sh /usr/bin/sublime_text_2

至此，就可以輸入sublime_text_2調用可以輸入中文的Sublime Text了。

當然，我們還可以修改桌面的配置文件：

sudo vi /usr/share/applications/sublime_text_2.desktop

內容基本一樣，我機子上的配置文件如下：

[Desktop Entry]
Name=SublimeText 2
GenericName=Text Editor
Exec=sublime_text_2

Terminal=false
Icon=/usr/local/lib/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=sublime_text_2 -n
TargetEnvironment=Unity