src/share/classes/java/awt/BasicStroke.java

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   1 /*
   2  * Copyright (c) 1997, 2013, 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


 208                 throw new IllegalArgumentException("negative dash phase");
 209             }
 210             boolean allzero = true;
 211             for (int i = 0; i < dash.length; i++) {
 212                 float d = dash[i];
 213                 if (d > 0.0) {
 214                     allzero = false;
 215                 } else if (d < 0.0) {
 216                     throw new IllegalArgumentException("negative dash length");
 217                 }
 218             }
 219             if (allzero) {
 220                 throw new IllegalArgumentException("dash lengths all zero");
 221             }
 222         }
 223         this.width      = width;
 224         this.cap        = cap;
 225         this.join       = join;
 226         this.miterlimit = miterlimit;
 227         if (dash != null) {
 228             this.dash = (float []) dash.clone();
 229         }
 230         this.dash_phase = dash_phase;
 231     }
 232 
 233     /**
 234      * Constructs a solid <code>BasicStroke</code> with the specified
 235      * attributes.
 236      * @param width the width of the <code>BasicStroke</code>
 237      * @param cap the decoration of the ends of a <code>BasicStroke</code>
 238      * @param join the decoration applied where path segments meet
 239      * @param miterlimit the limit to trim the miter join
 240      * @throws IllegalArgumentException if <code>width</code> is negative
 241      * @throws IllegalArgumentException if <code>cap</code> is not either
 242      *         CAP_BUTT, CAP_ROUND or CAP_SQUARE
 243      * @throws IllegalArgumentException if <code>miterlimit</code> is less
 244      *         than 1 and <code>join</code> is JOIN_MITER
 245      * @throws IllegalArgumentException if <code>join</code> is not
 246      *         either JOIN_ROUND, JOIN_BEVEL, or JOIN_MITER
 247      */
 248     public BasicStroke(float width, int cap, int join, float miterlimit) {


 342         return miterlimit;
 343     }
 344 
 345     /**
 346      * Returns the array representing the lengths of the dash segments.
 347      * Alternate entries in the array represent the user space lengths
 348      * of the opaque and transparent segments of the dashes.
 349      * As the pen moves along the outline of the <code>Shape</code>
 350      * to be stroked, the user space
 351      * distance that the pen travels is accumulated.  The distance
 352      * value is used to index into the dash array.
 353      * The pen is opaque when its current cumulative distance maps
 354      * to an even element of the dash array and transparent otherwise.
 355      * @return the dash array.
 356      */
 357     public float[] getDashArray() {
 358         if (dash == null) {
 359             return null;
 360         }
 361 
 362         return (float[]) dash.clone();
 363     }
 364 
 365     /**
 366      * Returns the current dash phase.
 367      * The dash phase is a distance specified in user coordinates that
 368      * represents an offset into the dashing pattern. In other words, the dash
 369      * phase defines the point in the dashing pattern that will correspond to
 370      * the beginning of the stroke.
 371      * @return the dash phase as a <code>float</code> value.
 372      */
 373     public float getDashPhase() {
 374         return dash_phase;
 375     }
 376 
 377     /**
 378      * Returns the hashcode for this stroke.
 379      * @return      a hash code for this stroke.
 380      */
 381     public int hashCode() {
 382         int hash = Float.floatToIntBits(width);


   1 /*
   2  * Copyright (c) 1997, 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


 208                 throw new IllegalArgumentException("negative dash phase");
 209             }
 210             boolean allzero = true;
 211             for (int i = 0; i < dash.length; i++) {
 212                 float d = dash[i];
 213                 if (d > 0.0) {
 214                     allzero = false;
 215                 } else if (d < 0.0) {
 216                     throw new IllegalArgumentException("negative dash length");
 217                 }
 218             }
 219             if (allzero) {
 220                 throw new IllegalArgumentException("dash lengths all zero");
 221             }
 222         }
 223         this.width      = width;
 224         this.cap        = cap;
 225         this.join       = join;
 226         this.miterlimit = miterlimit;
 227         if (dash != null) {
 228             this.dash = dash.clone();
 229         }
 230         this.dash_phase = dash_phase;
 231     }
 232 
 233     /**
 234      * Constructs a solid <code>BasicStroke</code> with the specified
 235      * attributes.
 236      * @param width the width of the <code>BasicStroke</code>
 237      * @param cap the decoration of the ends of a <code>BasicStroke</code>
 238      * @param join the decoration applied where path segments meet
 239      * @param miterlimit the limit to trim the miter join
 240      * @throws IllegalArgumentException if <code>width</code> is negative
 241      * @throws IllegalArgumentException if <code>cap</code> is not either
 242      *         CAP_BUTT, CAP_ROUND or CAP_SQUARE
 243      * @throws IllegalArgumentException if <code>miterlimit</code> is less
 244      *         than 1 and <code>join</code> is JOIN_MITER
 245      * @throws IllegalArgumentException if <code>join</code> is not
 246      *         either JOIN_ROUND, JOIN_BEVEL, or JOIN_MITER
 247      */
 248     public BasicStroke(float width, int cap, int join, float miterlimit) {


 342         return miterlimit;
 343     }
 344 
 345     /**
 346      * Returns the array representing the lengths of the dash segments.
 347      * Alternate entries in the array represent the user space lengths
 348      * of the opaque and transparent segments of the dashes.
 349      * As the pen moves along the outline of the <code>Shape</code>
 350      * to be stroked, the user space
 351      * distance that the pen travels is accumulated.  The distance
 352      * value is used to index into the dash array.
 353      * The pen is opaque when its current cumulative distance maps
 354      * to an even element of the dash array and transparent otherwise.
 355      * @return the dash array.
 356      */
 357     public float[] getDashArray() {
 358         if (dash == null) {
 359             return null;
 360         }
 361 
 362         return dash.clone();
 363     }
 364 
 365     /**
 366      * Returns the current dash phase.
 367      * The dash phase is a distance specified in user coordinates that
 368      * represents an offset into the dashing pattern. In other words, the dash
 369      * phase defines the point in the dashing pattern that will correspond to
 370      * the beginning of the stroke.
 371      * @return the dash phase as a <code>float</code> value.
 372      */
 373     public float getDashPhase() {
 374         return dash_phase;
 375     }
 376 
 377     /**
 378      * Returns the hashcode for this stroke.
 379      * @return      a hash code for this stroke.
 380      */
 381     public int hashCode() {
 382         int hash = Float.floatToIntBits(width);