123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121 |
- /*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You 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.
- */
-
- /* $Id$ */
-
- package org.apache.fop.afp;
-
- import java.awt.geom.AffineTransform;
-
-
-
- /**
- * AFP Unit converter
- */
- public class AFPUnitConverter {
-
- /** the AFP state */
- private final AFPPaintingState paintingState;
-
- /**
- * Unit converter
- *
- * @param paintingState the AFP painting state
- */
- public AFPUnitConverter(AFPPaintingState paintingState) {
- this.paintingState = paintingState;
- }
-
- /**
- * Converts millipoints to units
- *
- * @param srcPts source points
- * @param dstPts destination points
- * @return transformed points
- */
- public int[] mpts2units(float[] srcPts, float[] dstPts) {
- return transformPoints(srcPts, dstPts, true);
- }
-
- /**
- * Converts points to units
- *
- * @param srcPts source points
- * @param dstPts destination points
- * @return transformed points
- */
- public int[] pts2units(float[] srcPts, float[] dstPts) {
- return transformPoints(srcPts, dstPts, false);
- }
-
- /**
- * Converts millipoints to units
- *
- * @param srcPts source points
- * @return transformed points
- */
- public int[] mpts2units(float[] srcPts) {
- return transformPoints(srcPts, null, true);
- }
-
- /**
- * Converts points to units
- *
- * @param srcPts source points
- * @return transformed points
- */
- public int[] pts2units(float[] srcPts) {
- return transformPoints(srcPts, null, false);
- }
-
- /**
- * Converts point to unit
- *
- * @param pt point
- * @return transformed point
- */
- public float pt2units(float pt) {
- return pt / ((float)AFPConstants.DPI_72 / paintingState.getResolution());
- }
-
- /**
- * Converts millipoint to unit
- *
- * @param mpt millipoint
- * @return transformed point
- */
- public float mpt2units(float mpt) {
- return mpt / ((float)AFPConstants.DPI_72_MPTS / paintingState.getResolution());
- }
-
- private int[] transformPoints(float[] srcPts, float[] dstPts, boolean milli) {
- if (dstPts == null) {
- dstPts = new float[srcPts.length];
- }
- AffineTransform at = paintingState.getData().getTransform();
- at.transform(srcPts, 0, dstPts, 0, srcPts.length / 2);
- int[] coords = new int[srcPts.length];
- for (int i = 0; i < srcPts.length; i++) {
- if (!milli) {
- dstPts[i] *= 1000;
- }
- coords[i] = Math.round(dstPts[i]);
- }
- return coords;
- }
-
- }
|