如何进行 SCIM 前端开发？

shenpin · 发表于 2008-6-22 15:37:40

为linux游戏开发输入法，是个很头痛的问题。虽然从SDL-1.2.13开始 XIM已经被支持了，但是还有很多问题，比如说全屏下输入法不可见。

所以我想沿用win32下的游戏模式，传递键盘事件给输入法引擎，得到一组字符串，再自己画出IM Panel。XIM好像很难这样作，SCIM的SocketFrontEnd有点这个意思，不过还是不行。所以我想自己作一个scim的frontEnd来提供类似候选字符串的查找的功能。

frontend我写了一点，不过在process_key_event (id, key)地方卡住了，没思路了，明明scim的scoket和XIM的前端是可以的。。。

scim的代码看了2天，头都大了，结构越复杂，代码看起来就越累，还没什么文档参考，

#define Uses_SCIM_LOOKUP_TABLE
#define Uses_SCIM_FRONTEND
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <scim.h>
#include <locale.h>
#include <sstream>
#include <iostream>
using namespace scim;
class MyFrontEnd: public FrontEndBase {
private:
WideString factory_info(String uuid) {
std::basic_stringstream<wchar_t> stream;
stream << "Name:" << get_factory_name(uuid).c_str() << ' ';
stream << "Language:" << get_factory_language(uuid).c_str() << ' ';
stream << "Authors:" << get_factory_authors(uuid).c_str() << ' ';
stream << "Credits:" << get_factory_credits(uuid).c_str() << ' ';
//stream << "Help:"<<get_factory_help(uuid).c_str()<<' ';
//stream << "Icon_file:"<<get_factory_icon_file(uuid).c_str()<<' ';
stream << "Locales:" << get_factory_locales(uuid).c_str() << ' ';
//stream<<'\n';
return stream.str();
}
void dump_factory() {
std::vector<String> uuids;
String language;
uint32 ret = get_factory_list_for_language(uuids, language);
if (ret > 0) {
std::vector<String>::const_iterator it;
for (it = uuids.begin(); it != uuids.end();++it) {
printf("%S\n",factory_info(*it).c_str() );
}
}
}
public:
MyFrontEnd(const BackEndPointer &backend) :
FrontEndBase(backend) {
setlocale(LC_ALL, "zh_CN.UTF-8");
}
void init(int argc, char **argv) {
String uuid;
String language="zh_CN";
String encoding="UTF-8";
uuid=get_default_factory (language, encoding);
printf("Default IM:%S\n",factory_info(uuid).c_str());
int id= new_instance (uuid, encoding);
if(id==-1){
perror("new_instance Error\n");
}
else {
printf("Get IM success\n");
KeyEvent key("Control+space");
focus_in(id);
if(process_key_event (id, key)) {
printf("Process key success\n");
}else{
perror("Process key error!");
}
}
}
void run () {}
};
//Module Interface
static Pointer<MyFrontEnd> _scim_frontend(0);
static int _argc;
static char **_argv;
extern "C" {
void scim_module_init(void) {
SCIM_DEBUG_FRONTEND(1) << "Initializing Socket FrontEnd module...\n";
}
void scim_module_exit(void) {
SCIM_DEBUG_FRONTEND(1) << "Exiting Socket FrontEnd module...\n";
_scim_frontend.reset();
}
void scim_frontend_module_init(const BackEndPointer &backend,
const ConfigPointer &config, int argc, char **argv) {
if (_scim_frontend.null()) {
SCIM_DEBUG_FRONTEND(1) << "Initializing Socket FrontEnd module (more)...\n";
_scim_frontend = new MyFrontEnd(backend);
_argc = argc;
_argv = argv;
}
}
void scim_frontend_module_run(void) {
if (!_scim_frontend.null()) {
SCIM_DEBUG_FRONTEND(1) << "Starting Socket FrontEnd module...\n";
_scim_frontend->init(_argc, _argv);
_scim_frontend->run();
}
}
}

复制代码

shenpin · 发表于 2008-6-22 15:41:50

运行上面代码得到了

scim -f libMyFrontEnd.so
Smart Common Input Method 1.4.7
Launching a SCIM process with libMyFrontEnd.so...
Loading socket Config module ...
Creating backend ...
Loading libMyFrontEnd.so FrontEnd module ...
Starting SCIM ...
Default IM:Name:智能拼音 Language:zh_CN Authors:版权所有 (C) 2002, 2003 James Su <suzhe@tsinghua.org.cn> Credits: Locales:zh_CN.UTF-8,zh_CN.GB18030,zh_CN.GBK,zh_CN.GB2312,zh_CN
Get IM success
Process key error!: 没有那个文件或目录
SCIM has exited successfully.

复制代码

shenpin · 发表于 2008-6-22 17:18:33

好了弄出来了。。。。

#define Uses_SCIM_LOOKUP_TABLE
#define Uses_SCIM_FRONTEND
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <scim.h>
#include <locale.h>
#include <sstream>
#include <iostream>
using namespace scim;
class MyFrontEnd: public FrontEndBase {
private:
int id;
private:
WideString factory_info(String uuid) {
std::basic_stringstream<wchar_t> stream;
stream << "Name:" << get_factory_name(uuid).c_str() << ' ';
stream << "Language:" << get_factory_language(uuid).c_str() << ' ';
stream << "Authors:" << get_factory_authors(uuid).c_str() << ' ';
stream << "Credits:" << get_factory_credits(uuid).c_str() << ' ';
//stream << "Help:"<<get_factory_help(uuid).c_str()<<' ';
//stream << "Icon_file:"<<get_factory_icon_file(uuid).c_str()<<' ';
stream << "Locales:" << get_factory_locales(uuid).c_str() << ' ';
//stream<<'\n';
return stream.str();
}
WideString instance_info(int id) {
std::basic_stringstream<wchar_t> stream;
stream << "Name:" << get_instance_name(id).c_str() << ' ';
stream << "Encoding:" << get_instance_encoding(id).c_str() << ' ';
stream << "Authors:" << get_instance_authors(id).c_str() << ' ';
stream << "Credits:" << get_instance_credits(id).c_str() << ' ';
//stream << "Help:"<<get_instance_help(id).c_str()<<' ';
//stream << "Icon_file:"<<get_instance_icon_file(id).c_str()<<' ';
stream << "UUID:" << get_instance_uuid(id).c_str() << ' ';
//stream<<'\n';
return stream.str();
}
void dump_factory() {
std::vector<String> uuids;
String language;
uint32 ret = get_factory_list_for_language(uuids, language);
if (ret > 0) {
std::vector<String>::const_iterator it;
for (it = uuids.begin(); it != uuids.end();++it) {
printf("%S\n",factory_info(*it).c_str() );
}
}
}
void test_key(const KeyEvent& key) {
focus_in(id);
if(process_key_event (id, key)) {
printf("Process key success\n");
} else {
perror("Process key error!\n");
}
}
public:
MyFrontEnd(const BackEndPointer &backend) :
FrontEndBase(backend) {
setlocale(LC_ALL, "zh_CN.UTF-8");
}
void init(int argc, char **argv) {
String uuid;
String language="zh_CN";
String encoding="UTF-8";
uuid=get_default_factory (language, encoding);
id= new_instance (uuid, encoding);
printf("Default IM:%S\n",instance_info(id).c_str());
}
void run () {
if(id==-1) {
perror("new_instance Error\n");
}
else {
printf("Get IM success\n");
test_key(KeyEvent("a"));
test_key(KeyEvent("n"));
test_key(KeyEvent("n"));
test_key(KeyEvent("n"));
test_key(KeyEvent("n"));
}
}
void update_aux_string(int id, const WideString & str, const AttributeList & attrs)
{
printf("In update_aux_string -> Get string %S\n",str.c_str());
}
void update_preedit_string (int id, const WideString & str, const AttributeList & attrs)
{
printf("In update_preedit_string-> Get string %S\n",str.c_str());
}
void
update_lookup_table (int id, const LookupTable & table)
{
printf("In update_lookup_table\n");
size_t n=table.number_of_candidates();
for(size_t i=0;i<n;++i){
printf("%d->%S ",i,table.get_candidate(i).c_str());
if(i>0 && i%10 ==0 ){
printf("\n");
}
}
}
};
//Module Interface
static Pointer<MyFrontEnd> _scim_frontend(0);
static int _argc;
static char **_argv;
extern "C" {
void scim_module_init(void) {
SCIM_DEBUG_FRONTEND(1) << "Initializing Socket FrontEnd module...\n";
}
void scim_module_exit(void) {
SCIM_DEBUG_FRONTEND(1) << "Exiting Socket FrontEnd module...\n";
_scim_frontend.reset();
}
void scim_frontend_module_init(const BackEndPointer &backend,
const ConfigPointer &config, int argc, char **argv) {
if (_scim_frontend.null()) {
SCIM_DEBUG_FRONTEND(1) << "Initializing Socket FrontEnd module (more)...\n";
_scim_frontend = new MyFrontEnd(backend);
_argc = argc;
_argv = argv;
}
}
void scim_frontend_module_run(void) {
if (!_scim_frontend.null()) {
SCIM_DEBUG_FRONTEND(1) << "Starting Socket FrontEnd module...\n";
_scim_frontend->init(_argc, _argv);
_scim_frontend->run();
}
}
}

复制代码

shenpin · 发表于 2008-6-22 17:36:07

输出

[zarra@zarra-desktop Debug]$ scim -f libMyFrontEnd.so
Smart Common Input Method 1.4.7
Launching a SCIM process with libMyFrontEnd.so...
Loading socket Config module ...
Creating backend ...
Loading libMyFrontEnd.so FrontEnd module ...
Starting SCIM ...
Default IM:Name:智能拼音 Encoding:UTF-8 Authors:版权所有 (C) 2002, 2003 James Su <suzhe@tsinghua.org.cn> Credits: UUID:05235cfc-43ce-490c-b1b1-c5a2185276ae
Get IM success
In update_preedit_string-> Get string 阿
In update_aux_string -> Get string a
In update_lookup_table
0->阿 1->啊 2->呵 3->腌 4->吖 5->嗄 6->锕 7->錒 Process key success
In update_preedit_string-> Get string 阿
In update_aux_string -> Get string a
In update_lookup_table
0->阿 1->啊 2->呵 3->腌 4->吖 5->嗄 6->锕 7->錒 In update_preedit_string-> Get string 安
In update_aux_string -> Get string an
In update_lookup_table
0->安 1->案 2->暗 3->按 4->岸 5->俺 6->黯 7->庵 8->鞍 9->㐀 Process key success
In update_preedit_string-> Get string 安
In update_aux_string -> Get string an
In update_lookup_table
0->安 1->案 2->暗 3->按 4->岸 5->俺 6->黯 7->庵 8->鞍 9->㐀 In update_preedit_string-> Get string 按钮
In update_aux_string -> Get string n
In update_lookup_table
0->按钮 1->安娜 2->安宁 3->安南 4->按捺 5->安妮 6->按年 7->安能 8->安捺 9->㐀 Process key success
In update_preedit_string-> Get string 按钮
In update_aux_string -> Get string n
In update_lookup_table
0->按钮 1->安娜 2->安宁 3->安南 4->按捺 5->安妮 6->按年 7->安能 8->安捺 9->㐀 In update_preedit_string-> Get string 按钮你
In update_aux_string -> Get string n
In update_lookup_table
0->按钮你 1->按钮 2->安娜 3->安宁 4->安南 5->按捺 6->安妮 7->按年 8->安能 9->㐀 Process key success
In update_preedit_string-> Get string 按钮你
In update_aux_string -> Get string n
In update_lookup_table
0->按钮你 1->按钮 2->安娜 3->安宁 4->安南 5->按捺 6->安妮 7->按年 8->安能 9->㐀 In update_preedit_string-> Get string 按钮那你
In update_aux_string -> Get string n
In update_lookup_table
0->按钮那你 1->按钮 2->安娜 3->安宁 4->安南 5->按捺 6->安妮 7->按年 8->安能 9->㐀 Process key success
SCIM has exited successfully.

复制代码

fhqsuhpv · 发表于 2009-3-2 15:49:20

这位大哥，你怎么做的啊，教教我。。。我也是象你那么一步步来的。我怎么不行啊~！

fhqsuhpv · 发表于 2009-3-2 15:55:04

说我 "Failde to load lib...so FrontEnd module"

fhqsuhpv · 发表于 2009-3-2 16:00:44

是不是我有什么与s c i m相关的东西没安的事啊~！？？？？？

fhqsuhpv · 发表于 2009-3-2 16:04:47

我的SCIM是1.4.4的而你的是1.4.7的,和这个没有关系吧~!??????

fhqsuhpv · 发表于 2009-3-2 16:06:32

哥们你在哪啊?快出来help me!~!~!~!~!

fhqsuhpv · 发表于 2009-3-2 16:10:32

你的那个lib*.so是怎么生成的啊.是这样吗???

#g++ -shared -o lib*.so lib*.so

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