LatinIME/native/jni/com_android_inputmethod_keyboard_ProximityInfo.cpp

/*
**
** Copyright 2011, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
**     http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/

#define LOG_TAG "LatinIME: jni: ProximityInfo"

#include "com_android_inputmethod_keyboard_ProximityInfo.h"
#include "jni.h"
#include "jni_common.h"
#include "proximity_info.h"

#include <assert.h>
#include <errno.h>
#include <stdio.h>

namespace latinime {

static jint latinime_Keyboard_setProximityInfo(JNIEnv *env, jobject object,
        jint maxProximityCharsSize, jint displayWidth, jint displayHeight, jint gridWidth,
        jint gridHeight, jintArray proximityCharsArray, jint keyCount,
        jintArray keyXCoordinateArray, jintArray keyYCoordinateArray, jintArray keyWidthArray,
        jintArray keyHeightArray, jintArray keyCharCodeArray) {
    jint *proximityChars = env->GetIntArrayElements(proximityCharsArray, NULL);
    jint *keyXCoordinates = safeGetIntArrayElements(env, keyXCoordinateArray);
    jint *keyYCoordinates = safeGetIntArrayElements(env, keyYCoordinateArray);
    jint *keyWidths = safeGetIntArrayElements(env, keyWidthArray);
    jint *keyHeights = safeGetIntArrayElements(env, keyHeightArray);
    jint *keyCharCodes = safeGetIntArrayElements(env, keyCharCodeArray);
    ProximityInfo *proximityInfo = new ProximityInfo(maxProximityCharsSize, displayWidth,
            displayHeight, gridWidth, gridHeight, (const uint32_t*)proximityChars,
            keyCount, (const int32_t*)keyXCoordinates, (const int32_t*)keyYCoordinates,
            (const int32_t*)keyWidths, (const int32_t*)keyHeights, (const int32_t*)keyCharCodes);
    safeReleaseIntArrayElements(env, keyCharCodeArray, keyCharCodes);
    safeReleaseIntArrayElements(env, keyHeightArray, keyHeights);
    safeReleaseIntArrayElements(env, keyWidthArray, keyWidths);
    safeReleaseIntArrayElements(env, keyYCoordinateArray, keyYCoordinates);
    safeReleaseIntArrayElements(env, keyXCoordinateArray, keyXCoordinates);
    env->ReleaseIntArrayElements(proximityCharsArray, proximityChars, 0);
    return (jint)proximityInfo;
}

static void latinime_Keyboard_release(JNIEnv *env, jobject object, jint proximityInfo) {
    ProximityInfo *pi = (ProximityInfo*)proximityInfo;
    if (!pi) return;
    delete pi;
}

static JNINativeMethod sKeyboardMethods[] = {
    {"setProximityInfoNative", "(IIIII[II[I[I[I[I[I)I", (void*)latinime_Keyboard_setProximityInfo},
    {"releaseProximityInfoNative", "(I)V", (void*)latinime_Keyboard_release}
};

int register_ProximityInfo(JNIEnv *env) {
    const char *const kClassPathName = "com/android/inputmethod/keyboard/ProximityInfo";
    return registerNativeMethods(env, kClassPathName, sKeyboardMethods,
            sizeof(sKeyboardMethods) / sizeof(sKeyboardMethods[0]));
}

} // namespace latinime