64 lines
1.9 KiB
Java
64 lines
1.9 KiB
Java
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/*
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* Copyright (C) 2008 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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package android.text;
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import android.graphics.BaseCanvas;
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import android.graphics.Canvas;
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import android.graphics.Paint;
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/**
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* Please implement this interface if your CharSequence can do quick draw/measure/widths
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* calculations from an internal array.
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*
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* @hide
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*/
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public interface GraphicsOperations extends CharSequence {
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/**
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* Just like {@link Canvas#drawText}.
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*/
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void drawText(BaseCanvas c, int start, int end,
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float x, float y, Paint p);
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/**
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* Just like {@link Canvas#drawTextRun}.
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*/
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void drawTextRun(BaseCanvas c, int start, int end, int contextStart, int contextEnd,
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float x, float y, boolean isRtl, Paint p);
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/**
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* Just like {@link Paint#measureText}.
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*/
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float measureText(int start, int end, Paint p);
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/**
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* Just like {@link Paint#getTextWidths}.
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*/
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public int getTextWidths(int start, int end, float[] widths, Paint p);
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/**
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* Just like {@link Paint#getTextRunAdvances}.
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*/
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float getTextRunAdvances(int start, int end, int contextStart, int contextEnd,
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boolean isRtl, float[] advances, int advancesIndex, Paint paint);
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/**
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* Just like {@link Paint#getTextRunCursor}.
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*/
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int getTextRunCursor(int contextStart, int contextEnd, boolean isRtl, int offset,
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int cursorOpt, Paint p);
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}
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