mirror of https://github.com/axmolengine/axmol.git
65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
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/*
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Copyright 2010 Google Inc.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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 GrRectanizer_DEFINED
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#define GrRectanizer_DEFINED
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#include "GrRect.h"
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#include "GrTDArray.h"
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class GrRectanizerPurgeListener {
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public:
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virtual ~GrRectanizerPurgeListener() {}
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virtual void notifyPurgeStrip(void*, int yCoord) = 0;
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};
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class GrRectanizer {
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public:
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GrRectanizer(int width, int height) : fWidth(width), fHeight(height) {
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GrAssert(width >= 0);
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GrAssert(height >= 0);
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}
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virtual ~GrRectanizer() {}
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int width() const { return fWidth; }
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int height() const { return fHeight; }
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virtual bool addRect(int width, int height, GrIPoint16* loc) = 0;
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virtual float percentFull() const = 0;
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// return the Y-coordinate of a strip that should be purged, given height
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// i.e. return the oldest such strip, or some other criteria. Return -1
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// if there is no candidate
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virtual int stripToPurge(int height) const = 0;
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virtual void purgeStripAtY(int yCoord) = 0;
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/**
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* Our factory, which returns the subclass du jour
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*/
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static GrRectanizer* Factory(int width, int height);
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private:
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int fWidth;
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int fHeight;
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};
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#endif
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