sublime text 3支持中文输入法

新建文件sublime-imfix.c，内容如下：

// sudo apt-get install libgtk2.0-dev
// yum install gtk2-devel
/*
 * 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);
}

编译生成一个so文件：

sudo apt-get install libgtk2.0-dev

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

将libsublime-imfix.so拷贝到sublime_text所在文件夹

sudo mv libsublime-imfix.so /opt/sublime_text/


sudo gedit /usr/share/applications/sublime_text.desktop
将[Desktop Entry]中的字符串
Exec=/opt/sublime_text/sublime_text %F
修改为
Exec=bash -c "LD_PRELOAD=/opt/sublime_text/libsublime-imfix.so exec /opt/sublime_text/sublime_text %F"
将[Desktop Action Window]中的字符串
Exec=/opt/sublime_text/sublime_text -n
修改为
Exec=bash -c "LD_PRELOAD=/opt/sublime_text/libsublime-imfix.so exec /opt/sublime_text/sublime_text -n"
将[Desktop Action Document]中的字符串
Exec=/opt/sublime_text/sublime_text --command new_file
修改为
Exec=bash -c "LD_PRELOAD=/opt/sublime_text/libsublime-imfix.so exec /opt/sublime_text/sublime_text --command new_file"
这样就通过快捷方式打开SublimeText 3就可以支持中文输入了。