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src/java.desktop/share/classes/javax/swing/text/GlyphPainter1.java

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   1 /*
   2  * Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


 181         int retValue = p0 + offs;
 182         if(retValue == p1) {
 183             // No need to return backward bias as GlyphPainter1 is used for
 184             // ltr text only.
 185             retValue--;
 186         }
 187         biasReturn[0] = Position.Bias.Forward;
 188         return retValue;
 189     }
 190 
 191     /**
 192      * Determines the best location (in the model) to break
 193      * the given view.
 194      * This method attempts to break on a whitespace
 195      * location.  If a whitespace location can't be found, the
 196      * nearest character location is returned.
 197      *
 198      * @param v the view
 199      * @param p0 the location in the model where the
 200      *  fragment should start its representation >= 0
 201      * @param pos the graphic location along the axis that the
 202      *  broken view would occupy >= 0; this may be useful for
 203      *  things like tab calculations
 204      * @param len specifies the distance into the view
 205      *  where a potential break is desired >= 0
 206      * @return the model location desired for a break
 207      * @see View#breakView
 208      */
 209     public int getBoundedPosition(GlyphView v, int p0, float x, float len) {
 210         sync(v);
 211         TabExpander expander = v.getTabExpander();
 212         Segment s = v.getText(p0, v.getEndOffset());
 213         int[] justificationData = getJustificationData(v);
 214         int index = Utilities.getTabbedTextOffset(v, s, metrics, x, (x+len),
 215                                                   expander, p0, false,
 216                                                   justificationData, true);
 217         SegmentCache.releaseSharedSegment(s);
 218         int p1 = p0 + index;
 219         return p1;
 220     }
 221 


   1 /*
   2  * Copyright (c) 1999, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


 181         int retValue = p0 + offs;
 182         if(retValue == p1) {
 183             // No need to return backward bias as GlyphPainter1 is used for
 184             // ltr text only.
 185             retValue--;
 186         }
 187         biasReturn[0] = Position.Bias.Forward;
 188         return retValue;
 189     }
 190 
 191     /**
 192      * Determines the best location (in the model) to break
 193      * the given view.
 194      * This method attempts to break on a whitespace
 195      * location.  If a whitespace location can't be found, the
 196      * nearest character location is returned.
 197      *
 198      * @param v the view
 199      * @param p0 the location in the model where the
 200      *  fragment should start its representation >= 0
 201      * @param x the graphic location along the axis that the
 202      *  broken view would occupy >= 0; this may be useful for
 203      *  things like tab calculations
 204      * @param len specifies the distance into the view
 205      *  where a potential break is desired >= 0
 206      * @return the model location desired for a break
 207      * @see View#breakView
 208      */
 209     public int getBoundedPosition(GlyphView v, int p0, float x, float len) {
 210         sync(v);
 211         TabExpander expander = v.getTabExpander();
 212         Segment s = v.getText(p0, v.getEndOffset());
 213         int[] justificationData = getJustificationData(v);
 214         int index = Utilities.getTabbedTextOffset(v, s, metrics, x, (x+len),
 215                                                   expander, p0, false,
 216                                                   justificationData, true);
 217         SegmentCache.releaseSharedSegment(s);
 218         int p1 = p0 + index;
 219         return p1;
 220     }
 221 


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