How does sublime text 3 support Chinese input under Ubuntu?

The following tutorial column from sublime will introduce to you how sublime text 3 supports Chinese input under Ubuntu. I hope it will be helpful to friends in need!

• Installation of related dependent software---sudo apt-get install build-essential libgtk2.0-dev
• Copy the following code to sublime text 3 and save it as The file of 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);
}

• Find the file location in the terminal and compile this file into the shared library libsublime-imfix.so----Enter the command
  gcc -shared -o libsublime-imfix.so sublime_imfix.c `pkg-config --libs --cflags gtk -2.0` -fPIC
• Copy libsublime-imfix.so to the folder where sublime_text is located ---sudo mv libsublime-imfix .so /opt/sublime_text/
• Modify the contents of the file /usr/bin/subl ---sudo gedit /usr/bin/subl
• will

#!/bin/sh
exec /opt/sublime_text/sublime_text "$@"

• Modify to

#!/bin/sh
LD_PRELOAD=/opt/sublime_text/libsublime-imfix.so exec /opt/sublime_text/sublime_text "$@"

In this way, we can enter Chinese in sublime by typing subl to start from the terminal!

Finally, in order to facilitate us to use Chinese input when starting directly, we need to open and modify the contents of the file sublime_text.desktop in the terminal command---sudo gedit /usr/share/applications/sublime_text.desktop

[Desktop Entry]
Version=1.0
Type=Application
Name=Sublime Text
GenericName=Text Editor
Comment=Sophisticated text editor for code,markup and prose
Exec=bash -c "LD_PRELOAD=/opt/sublime_text/libsublime-imfix.so exec /opt/sublime_text/sublime_text %F"
Terminal=false
MimeType=text/plain;
Icon=sublime-text
Categories=TextEditor;Development;Utility;
StartupNotify=true
Actions=Window;Document;

X-Desktop-File-Install-Version=0.22

[Desktop Action Window]
Name=New Window
Exec=bash -c "LD_PRELOAD=/opt/sublime_text/libsublime-imfix.so exec /opt/sublime_text/sublime_text -n"
OnlyShowIn=Unity;
[Desktop Action Document]
Name=New File
Exec=bash -c "LD_PRELOAD=/opt/sublime_text/libsublime-imfix.so exec /opt/sublime_text/sublime_text --command new_file"
OnlyShowIn=Unity;

Replace the content with the above code content, and we are done! Of course, for the sake of stability, it is better to start from the terminal!

*Note
Because we will see two icons, one of which can input Chinese only when it is started, and the other one still cannot input

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