| /* |
| * Copyright (C) 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 "PointerIcon-JNI" |
| |
| #include "JNIHelp.h" |
| |
| #include "android_view_PointerIcon.h" |
| |
| #include <android_runtime/AndroidRuntime.h> |
| #include <android_runtime/Log.h> |
| #include <utils/Log.h> |
| #include <android/graphics/GraphicsJNI.h> |
| |
| #include "core_jni_helpers.h" |
| |
| namespace android { |
| |
| static struct { |
| jclass clazz; |
| jfieldID mStyle; |
| jfieldID mBitmap; |
| jfieldID mHotSpotX; |
| jfieldID mHotSpotY; |
| jmethodID getSystemIcon; |
| jmethodID load; |
| } gPointerIconClassInfo; |
| |
| |
| // --- Global Functions --- |
| |
| jobject android_view_PointerIcon_getSystemIcon(JNIEnv* env, jobject contextObj, int32_t style) { |
| jobject pointerIconObj = env->CallStaticObjectMethod(gPointerIconClassInfo.clazz, |
| gPointerIconClassInfo.getSystemIcon, contextObj, style); |
| if (env->ExceptionCheck()) { |
| ALOGW("An exception occurred while getting a pointer icon with style %d.", style); |
| LOGW_EX(env); |
| env->ExceptionClear(); |
| return NULL; |
| } |
| return pointerIconObj; |
| } |
| |
| status_t android_view_PointerIcon_load(JNIEnv* env, jobject pointerIconObj, jobject contextObj, |
| PointerIcon* outPointerIcon) { |
| outPointerIcon->reset(); |
| |
| if (!pointerIconObj) { |
| return OK; |
| } |
| |
| jobject loadedPointerIconObj = env->CallObjectMethod(pointerIconObj, |
| gPointerIconClassInfo.load, contextObj); |
| if (env->ExceptionCheck() || !loadedPointerIconObj) { |
| ALOGW("An exception occurred while loading a pointer icon."); |
| LOGW_EX(env); |
| env->ExceptionClear(); |
| return UNKNOWN_ERROR; |
| } |
| |
| outPointerIcon->style = env->GetIntField(loadedPointerIconObj, |
| gPointerIconClassInfo.mStyle); |
| outPointerIcon->hotSpotX = env->GetFloatField(loadedPointerIconObj, |
| gPointerIconClassInfo.mHotSpotX); |
| outPointerIcon->hotSpotY = env->GetFloatField(loadedPointerIconObj, |
| gPointerIconClassInfo.mHotSpotY); |
| |
| jobject bitmapObj = env->GetObjectField(loadedPointerIconObj, gPointerIconClassInfo.mBitmap); |
| if (bitmapObj) { |
| GraphicsJNI::getSkBitmap(env, bitmapObj, &(outPointerIcon->bitmap)); |
| env->DeleteLocalRef(bitmapObj); |
| } |
| |
| env->DeleteLocalRef(loadedPointerIconObj); |
| return OK; |
| } |
| |
| status_t android_view_PointerIcon_loadSystemIcon(JNIEnv* env, jobject contextObj, |
| int32_t style, PointerIcon* outPointerIcon) { |
| jobject pointerIconObj = android_view_PointerIcon_getSystemIcon(env, contextObj, style); |
| if (!pointerIconObj) { |
| outPointerIcon->reset(); |
| return UNKNOWN_ERROR; |
| } |
| |
| status_t status = android_view_PointerIcon_load(env, pointerIconObj, |
| contextObj, outPointerIcon); |
| env->DeleteLocalRef(pointerIconObj); |
| return status; |
| } |
| |
| |
| // --- JNI Registration --- |
| |
| int register_android_view_PointerIcon(JNIEnv* env) { |
| jclass clazz = FindClassOrDie(env, "android/view/PointerIcon"); |
| gPointerIconClassInfo.clazz = MakeGlobalRefOrDie(env, clazz); |
| |
| gPointerIconClassInfo.mBitmap = GetFieldIDOrDie(env, gPointerIconClassInfo.clazz, |
| "mBitmap", "Landroid/graphics/Bitmap;"); |
| |
| gPointerIconClassInfo.mStyle = GetFieldIDOrDie(env, gPointerIconClassInfo.clazz, |
| "mStyle", "I"); |
| |
| gPointerIconClassInfo.mHotSpotX = GetFieldIDOrDie(env, gPointerIconClassInfo.clazz, |
| "mHotSpotX", "F"); |
| |
| gPointerIconClassInfo.mHotSpotY = GetFieldIDOrDie(env, gPointerIconClassInfo.clazz, |
| "mHotSpotY", "F"); |
| |
| gPointerIconClassInfo.getSystemIcon = GetStaticMethodIDOrDie(env, gPointerIconClassInfo.clazz, |
| "getSystemIcon", "(Landroid/content/Context;I)Landroid/view/PointerIcon;"); |
| |
| gPointerIconClassInfo.load = GetMethodIDOrDie(env, gPointerIconClassInfo.clazz, |
| "load", "(Landroid/content/Context;)Landroid/view/PointerIcon;"); |
| |
| return 0; |
| } |
| |
| } // namespace android |