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src/java.desktop/share/classes/sun/font/FontFamily.java

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rev 60064 : 8248802: Add log helper methods to FontUtilities.java
   1 /*
   2  * Copyright (c) 2003, 2006, 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


 164      */
 165 
 166     private int familyWidth = 0;
 167     private boolean preferredWidth(Font2D font) {
 168 
 169         int newWidth = font.getWidth();
 170 
 171         if (familyWidth == 0) {
 172             familyWidth = newWidth;
 173             return true;
 174         }
 175 
 176         if (newWidth == familyWidth) {
 177             return true;
 178         }
 179 
 180         if (Math.abs(Font2D.FWIDTH_NORMAL - newWidth) <
 181             Math.abs(Font2D.FWIDTH_NORMAL - familyWidth))
 182         {
 183            if (FontUtilities.debugFonts()) {
 184                FontUtilities.getLogger().info(
 185                "Found more preferred width. New width = " + newWidth +
 186                " Old width = " + familyWidth + " in font " + font +
 187                " nulling out fonts plain: " + plain + " bold: " + bold +
 188                " italic: " + italic + " bolditalic: " + bolditalic);
 189            }
 190            familyWidth = newWidth;
 191            plain = bold = italic = bolditalic = null;
 192            return true;
 193         } else if (FontUtilities.debugFonts()) {
 194                FontUtilities.getLogger().info(
 195                "Family rejecting font " + font +
 196                " of less preferred width " + newWidth);
 197         }
 198         return false;
 199     }
 200 
 201     private boolean closerWeight(Font2D currFont, Font2D font, int style) {
 202         if (familyWidth != font.getWidth()) {
 203             return false;
 204         }
 205 
 206         if (currFont == null) {
 207             return true;
 208         }
 209 
 210         if (FontUtilities.debugFonts()) {
 211             FontUtilities.getLogger().info(
 212             "New weight for style " + style + ". Curr.font=" + currFont +
 213             " New font="+font+" Curr.weight="+ + currFont.getWeight()+
 214             " New weight="+font.getWeight());
 215         }
 216 
 217         int newWeight = font.getWeight();
 218         switch (style) {
 219             case Font.PLAIN:
 220             case Font.ITALIC:
 221                 return (newWeight <= Font2D.FWEIGHT_NORMAL &&
 222                         newWeight > currFont.getWeight());
 223 
 224             case Font.BOLD:
 225             case Font.BOLD|Font.ITALIC:
 226                 return (Math.abs(newWeight - Font2D.FWEIGHT_BOLD) <
 227                         Math.abs(currFont.getWeight() - Font2D.FWEIGHT_BOLD));
 228 
 229             default:
 230                return false;
 231         }
 232     }
 233 
 234     public void setFont(Font2D font, int style) {
 235 
 236         if (FontUtilities.isLogging()) {
 237             String msg;
 238             if (font instanceof CompositeFont) {
 239                 msg = "Request to add " + font.getFamilyName(null) +
 240                       " with style " + style + " to family " + familyName;
 241             } else {
 242                 msg = "Request to add " + font +
 243                       " with style " + style + " to family " + this;
 244             }
 245             FontUtilities.getLogger().info(msg);
 246         }
 247         /* Allow a lower-rank font only if its a file font
 248          * from the exact same source as any previous font.
 249          */
 250         if ((font.getRank() > familyRank) && !isFromSameSource(font)) {
 251             if (FontUtilities.isLogging()) {
 252                 FontUtilities.getLogger()
 253                                   .warning("Rejecting adding " + font +
 254                                            " of lower rank " + font.getRank() +
 255                                            " to family " + this +
 256                                            " of rank " + familyRank);
 257             }
 258             return;
 259         }
 260 
 261         switch (style) {
 262 
 263         case Font.PLAIN:
 264             if (preferredWidth(font) && closerWeight(plain, font, style)) {
 265                 plain = font;
 266             }
 267             break;
 268 
 269         case Font.BOLD:
 270             if (preferredWidth(font) && closerWeight(bold, font, style)) {
 271                 bold = font;
 272             }
 273             break;


   1 /*
   2  * Copyright (c) 2003, 2020, 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


 164      */
 165 
 166     private int familyWidth = 0;
 167     private boolean preferredWidth(Font2D font) {
 168 
 169         int newWidth = font.getWidth();
 170 
 171         if (familyWidth == 0) {
 172             familyWidth = newWidth;
 173             return true;
 174         }
 175 
 176         if (newWidth == familyWidth) {
 177             return true;
 178         }
 179 
 180         if (Math.abs(Font2D.FWIDTH_NORMAL - newWidth) <
 181             Math.abs(Font2D.FWIDTH_NORMAL - familyWidth))
 182         {
 183            if (FontUtilities.debugFonts()) {
 184                FontUtilities.logInfo(
 185                "Found more preferred width. New width = " + newWidth +
 186                " Old width = " + familyWidth + " in font " + font +
 187                " nulling out fonts plain: " + plain + " bold: " + bold +
 188                " italic: " + italic + " bolditalic: " + bolditalic);
 189            }
 190            familyWidth = newWidth;
 191            plain = bold = italic = bolditalic = null;
 192            return true;
 193         } else if (FontUtilities.debugFonts()) {
 194                FontUtilities.logInfo(
 195                "Family rejecting font " + font +
 196                " of less preferred width " + newWidth);
 197         }
 198         return false;
 199     }
 200 
 201     private boolean closerWeight(Font2D currFont, Font2D font, int style) {
 202         if (familyWidth != font.getWidth()) {
 203             return false;
 204         }
 205 
 206         if (currFont == null) {
 207             return true;
 208         }
 209 
 210         if (FontUtilities.debugFonts()) {
 211             FontUtilities.logInfo(
 212             "New weight for style " + style + ". Curr.font=" + currFont +
 213             " New font="+font+" Curr.weight="+ + currFont.getWeight()+
 214             " New weight="+font.getWeight());
 215         }
 216 
 217         int newWeight = font.getWeight();
 218         switch (style) {
 219             case Font.PLAIN:
 220             case Font.ITALIC:
 221                 return (newWeight <= Font2D.FWEIGHT_NORMAL &&
 222                         newWeight > currFont.getWeight());
 223 
 224             case Font.BOLD:
 225             case Font.BOLD|Font.ITALIC:
 226                 return (Math.abs(newWeight - Font2D.FWEIGHT_BOLD) <
 227                         Math.abs(currFont.getWeight() - Font2D.FWEIGHT_BOLD));
 228 
 229             default:
 230                return false;
 231         }
 232     }
 233 
 234     public void setFont(Font2D font, int style) {
 235 
 236         if (FontUtilities.isLogging()) {
 237             String msg;
 238             if (font instanceof CompositeFont) {
 239                 msg = "Request to add " + font.getFamilyName(null) +
 240                       " with style " + style + " to family " + familyName;
 241             } else {
 242                 msg = "Request to add " + font +
 243                       " with style " + style + " to family " + this;
 244             }
 245             FontUtilities.logInfo(msg);
 246         }
 247         /* Allow a lower-rank font only if its a file font
 248          * from the exact same source as any previous font.
 249          */
 250         if ((font.getRank() > familyRank) && !isFromSameSource(font)) {
 251             if (FontUtilities.isLogging()) {
 252                 FontUtilities.logWarning("Rejecting adding " + font +

 253                                          " of lower rank " + font.getRank() +
 254                                          " to family " + this +
 255                                          " of rank " + familyRank);
 256             }
 257             return;
 258         }
 259 
 260         switch (style) {
 261 
 262         case Font.PLAIN:
 263             if (preferredWidth(font) && closerWeight(plain, font, style)) {
 264                 plain = font;
 265             }
 266             break;
 267 
 268         case Font.BOLD:
 269             if (preferredWidth(font) && closerWeight(bold, font, style)) {
 270                 bold = font;
 271             }
 272             break;


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