ＱＴ中文输入法简单代码实现

/********************************************************************** ** Copyright (C) 2009 InsideQt.com ** ** This file is part of the Input Method Programming Guideline, ** for Qt/Embedded 4.5.1 ** Official named as Qt 4.5.1 for Embedded Linux ** ** This file may be distributed and/or modified under the terms of the ** GNU General Public License version 3 as published by the Free Software ** Foundation ** ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ** ** ** Author: Q-Kevin ** email: qkevin@InsideQt.com ** Homepage: http://www.InsideQt.com ** Create Date: May 11, 2009 ** License: GPL version 3 or later ** ** Please visist http://www.InsideQt.com/bbs to get more details **********************************************************************/ #include <QWSServer> #include <QApplication> #include <QTextCodec> #include <QStringList> #include "ximedata.h" #include "ximewindow.h" #include "xinputmethod.h" struct XInputMethodPrivate { static XInputMethod* pInputMethod; XWindow* pframe; XData imedata; XInputMethodPrivate(): pframe(NULL) {} }; XInputMethod* XInputMethodPrivate::pInputMethod = NULL; void XInputMethod::installInputMethod() { XInputMethod* pim = instance(); if (pim) { QWSServer::setCurrentInputMethod(pim); } } void XInputMethod::releaseInputMethod() { if (XInputMethodPrivate::pInputMethod) { QWSServer::setCurrentInputMethod(NULL); delete XInputMethodPrivate::pInputMethod; XInputMethodPrivate::pInputMethod = NULL; } } XInputMethod* XInputMethod::instance() { if (NULL == XInputMethodPrivate::pInputMethod) { XInputMethodPrivate::pInputMethod = new XInputMethod(); } return XInputMethodPrivate::pInputMethod; } XInputMethod::XInputMethod(): mpdata(new XInputMethodPrivate) { mpdata->pframe = new XWindow(mpdata->imedata); } XInputMethod::~XInputMethod() { if (mpdata) { delete mpdata->pframe; delete mpdata; mpdata = NULL; } } bool XInputMethod::filter(int /*unicode*/, int keycode, int modifiers, bool isPress, bool /*autoRepeat*/) { if (isPress && (Qt::AltModifier & modifiers) && (Qt::Key_Z == keycode)) { toggleIME(); return true; } if (mpdata && mpdata->pframe && mpdata->pframe->isVisible() && isPress) { if ((Qt::Key_A <= keycode) && (Qt::Key_Z >= keycode)) { char ch = (char)((Qt::ShiftModifier & modifiers) ? keycode : (keycode - Qt::Key_A + 'a')); newCharacter(ch); return true; } if ((Qt::Key_0 <= keycode) && (Qt::Key_9 >= keycode)) { return makeSelection(keycode - Qt::Key_0); } if (Qt::Key_PageDown == keycode) { showNextPage(); return true; } if (Qt::Key_PageUp == keycode) { showPreviousPage(); return true; } } return false; } void XInputMethod::toggleIME() { if (mpdata->pframe->isVisible()) { mpdata->pframe->hide(); mpdata->imedata.reset(); } else { mpdata->pframe->show(); } } void XInputMethod::newCharacter(char ch) { mpdata->imedata.strPinyin += ch; mpdata->imedata.listHanzi << "a"; mpdata->imedata.listHanzi << "b"; mpdata->imedata.listHanzi << "c"; mpdata->imedata.listHanzi << "d"; mpdata->imedata.listHanzi << "e"; mpdata->imedata.listHanzi << "f"; mpdata->imedata.listHanzi << "g"; mpdata->imedata.listHanzi << "h"; mpdata->imedata.listHanzi << "i"; mpdata->imedata.listHanzi << "j"; mpdata->imedata.listHanzi << "k"; mpdata->imedata.listHanzi << "l"; mpdata->imedata.listHanzi << "m"; mpdata->imedata.listHanzi << "n"; mpdata->imedata.listHanzi << "o"; mpdata->imedata.listHanzi << "p"; mpdata->imedata.listHanzi << "q"; mpdata->imedata.listHanzi << "r"; mpdata->imedata.listHanzi << "s"; mpdata->imedata.listHanzi << "t"; mpdata->imedata.listHanzi << "u"; mpdata->imedata.listHanzi << "v"; mpdata->imedata.listHanzi << "w"; mpdata->imedata.listHanzi << "x"; mpdata->imedata.listHanzi << "y"; mpdata->imedata.listHanzi << "z"; mpdata->pframe->update(); } bool XInputMethod::makeSelection(int number) { number--; if ((mpdata->imedata.first_visible + number) < mpdata->imedata.listHanzi.count()) { QString result = mpdata->imedata.listHanzi[mpdata->imedata.first_visible + number]; if (!result.isEmpty()) { sendCommitString(result); mpdata->imedata.reset(); mpdata->pframe->update(); return true; } } return false; } void XInputMethod::showNextPage() { if ((mpdata->imedata.first_visible + mpdata->imedata.counts_per_page) < mpdata->imedata.listHanzi.count()) { mpdata->imedata.first_visible += mpdata->imedata.counts_per_page; mpdata->pframe->update(); } } void XInputMethod::showPreviousPage() { if ((mpdata->imedata.first_visible - mpdata->imedata.counts_per_page) >= 0) { mpdata->imedata.first_visible -= mpdata->imedata.counts_per_page; mpdata->pframe->update(); } }