77 lines
2.5 KiB
C++
77 lines
2.5 KiB
C++
/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_GRAPHICS_REGION_H
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#define ANDROID_GRAPHICS_REGION_H
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#include <cutils/compiler.h>
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#include <android/rect.h>
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#include <sys/cdefs.h>
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#include <jni.h>
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__BEGIN_DECLS
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/**
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* Opaque handle for a native graphics region iterator.
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*/
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typedef struct ARegionIterator ARegionIterator;
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/**
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* Returns a iterator for a Java android.graphics.Region
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*
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* @param env
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* @param region
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* @return ARegionIterator that must be closed and must not live longer than the life
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* of the jobject. It returns nullptr if the region is not a valid object.
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*/
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ANDROID_API ARegionIterator* ARegionIterator_acquireIterator(JNIEnv* env, jobject region);
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ANDROID_API void ARegionIterator_releaseIterator(ARegionIterator* iterator);
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ANDROID_API bool ARegionIterator_isComplex(ARegionIterator* iterator);
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ANDROID_API bool ARegionIterator_isDone(ARegionIterator* iterator);
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ANDROID_API void ARegionIterator_next(ARegionIterator* iterator);
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ANDROID_API ARect ARegionIterator_getRect(ARegionIterator* iterator);
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ANDROID_API ARect ARegionIterator_getTotalBounds(ARegionIterator* iterator);
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__END_DECLS
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#ifdef __cplusplus
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namespace android {
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namespace graphics {
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class RegionIterator {
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public:
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RegionIterator(JNIEnv* env, jobject region)
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: mIterator(ARegionIterator_acquireIterator(env, region)) {}
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~RegionIterator() { ARegionIterator_releaseIterator(mIterator); }
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bool isValid() const { return mIterator != nullptr; }
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bool isComplex() { return ARegionIterator_isComplex(mIterator); }
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bool isDone() { return ARegionIterator_isDone(mIterator); }
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void next() { ARegionIterator_next(mIterator); }
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ARect getRect() { return ARegionIterator_getRect(mIterator); }
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ARect getTotalBounds() const { return ARegionIterator_getTotalBounds(mIterator); }
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private:
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ARegionIterator* mIterator;
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};
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}; // namespace graphics
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}; // namespace android
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#endif // __cplusplus
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#endif // ANDROID_GRAPHICS_REGION_H
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