libpyzy - The Chinese PinYin and Bopomofo conversion library.

Sample code

#include <PyZy/InputContext.h>
#include <PyZy/Const.h>
#include <PyZy/Variant.h>
#include <iostream>

// observer class to get a notification from |InputContext|.
class SampleObserver : public PyZy::InputContext::Observer {
public:
    void commitText (PyZy::InputContext *context, const std::string &commit_text) {
        std::cout << "text is commited. [" << commit_text << "]" << std::endl;
    }

    void inputTextChanged (PyZy::InputContext *context) {
        std::cout << "input text is changed. [" << context->inputText() << "]"
                  << std::endl;
    }

    void preeditTextChanged (PyZy::InputContext *context) {
        std::cout << "selected text is changed. [" << context->selectedText()
                  << "]" << std::endl;
    }

    void auxiliaryTextChanged (PyZy::InputContext *context) {
        std::cout << "conversion text is changed. ["
                  << context->conversionText() << "]" << std::endl;
    }

    void candidatesChanged (PyZy::InputContext *context) {
        std::cout << "candidates are changed." << std::endl;

        // output first 5 candidates.
        for (size_t i = 0; i < 5; ++i) {
            PyZy::Candidate candidate;
            if (!context->getCandidate(i, candidate)) {
                break;
            }
            std::cout << "  [" << i << "]: " << candidate.text << std::endl;
        }
    }

    void cursorChanged (PyZy::InputContext *context) {
        std::cout << "cursor position is commited. [" << context->cursor()
                  << "]" << std::endl;
    }
};

int main() {
    PyZy::InputContext::init();

    // create context with observer.
    SampleObserver observer;
    PyZy::InputContext *context = PyZy::InputContext::create(
        PyZy::InputContext::FULL_PINYIN, &observer);

    // set a property to enable simplified chinese mode.
    // This is a default value, so this is just a sample code.
    context->setProperty(PyZy::InputContext::PROPERTY_MODE_SIMP,
                         PyZy::Variant::fromBool (true));

    // insert characters.
    context->insert('n');
    context->insert('i');
    context->insert('h');
    context->insert('a');
    context->insert('o');

    // select a 5th candidate. (0 origin)
    if (context->hasCandidate(4)) {
        context->selectCandidate(4);
    }

    // commit text.
    context->commit(PyZy::InputContext::TYPE_CONVERTED);

    PyZy::InputContext::finalize();

    return 0;
}