diff options
Diffstat (limited to 'traceview/src/com/android/traceview/TickScaler.java')
-rw-r--r-- | traceview/src/com/android/traceview/TickScaler.java | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/traceview/src/com/android/traceview/TickScaler.java b/traceview/src/com/android/traceview/TickScaler.java deleted file mode 100644 index 79fa160..0000000 --- a/traceview/src/com/android/traceview/TickScaler.java +++ /dev/null @@ -1,148 +0,0 @@ -/* - * Copyright (C) 2006 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. - */ - -package com.android.traceview; - -class TickScaler { - - private double mMinVal; // required input - private double mMaxVal; // required input - private double mRangeVal; - private int mNumPixels; // required input - private int mPixelsPerTick; // required input - private double mPixelsPerRange; - private double mTickIncrement; - private double mMinMajorTick; - - TickScaler(double minVal, double maxVal, int numPixels, int pixelsPerTick) { - mMinVal = minVal; - mMaxVal = maxVal; - mNumPixels = numPixels; - mPixelsPerTick = pixelsPerTick; - } - - public void setMinVal(double minVal) { - mMinVal = minVal; - } - - public double getMinVal() { - return mMinVal; - } - - public void setMaxVal(double maxVal) { - mMaxVal = maxVal; - } - - public double getMaxVal() { - return mMaxVal; - } - - public void setNumPixels(int numPixels) { - mNumPixels = numPixels; - } - - public int getNumPixels() { - return mNumPixels; - } - - public void setPixelsPerTick(int pixelsPerTick) { - mPixelsPerTick = pixelsPerTick; - } - - public int getPixelsPerTick() { - return mPixelsPerTick; - } - - public void setPixelsPerRange(double pixelsPerRange) { - mPixelsPerRange = pixelsPerRange; - } - - public double getPixelsPerRange() { - return mPixelsPerRange; - } - - public void setTickIncrement(double tickIncrement) { - mTickIncrement = tickIncrement; - } - - public double getTickIncrement() { - return mTickIncrement; - } - - public void setMinMajorTick(double minMajorTick) { - mMinMajorTick = minMajorTick; - } - - public double getMinMajorTick() { - return mMinMajorTick; - } - - // Convert a time value to a 0-based pixel value - public int valueToPixel(double value) { - return (int) Math.ceil(mPixelsPerRange * (value - mMinVal) - 0.5); - } - - // Convert a time value to a 0-based fractional pixel - public double valueToPixelFraction(double value) { - return mPixelsPerRange * (value - mMinVal); - } - - // Convert a 0-based pixel value to a time value - public double pixelToValue(int pixel) { - return mMinVal + (pixel / mPixelsPerRange); - } - - public void computeTicks(boolean useGivenEndPoints) { - int numTicks = mNumPixels / mPixelsPerTick; - mRangeVal = mMaxVal - mMinVal; - mTickIncrement = mRangeVal / numTicks; - double dlogTickIncrement = Math.log10(mTickIncrement); - int logTickIncrement = (int) Math.floor(dlogTickIncrement); - double scale = Math.pow(10, logTickIncrement); - double scaledTickIncr = mTickIncrement / scale; - if (scaledTickIncr > 5.0) - scaledTickIncr = 10; - else if (scaledTickIncr > 2) - scaledTickIncr = 5; - else if (scaledTickIncr > 1) - scaledTickIncr = 2; - else - scaledTickIncr = 1; - mTickIncrement = scaledTickIncr * scale; - - if (!useGivenEndPoints) { - // Round up the max val to the next minor tick - double minorTickIncrement = mTickIncrement / 5; - double dval = mMaxVal / minorTickIncrement; - int ival = (int) dval; - if (ival != dval) - mMaxVal = (ival + 1) * minorTickIncrement; - - // Round down the min val to a multiple of tickIncrement - ival = (int) (mMinVal / mTickIncrement); - mMinVal = ival * mTickIncrement; - mMinMajorTick = mMinVal; - } else { - int ival = (int) (mMinVal / mTickIncrement); - mMinMajorTick = ival * mTickIncrement; - if (mMinMajorTick < mMinVal) - mMinMajorTick = mMinMajorTick + mTickIncrement; - } - - mRangeVal = mMaxVal - mMinVal; - mPixelsPerRange = (double) mNumPixels / mRangeVal; - } -} |