| /* |
| * Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.java2d.pipe; |
| |
| import java.awt.Rectangle; |
| import java.awt.Shape; |
| import sun.java2d.SunGraphics2D; |
| import sun.font.GlyphList; |
| |
| /* |
| * This class uses the alpha graybits arrays from a GlyphList object to |
| * drive a CompositePipe in much the same way as the antialiasing renderer. |
| */ |
| public class TextRenderer extends GlyphListPipe { |
| |
| CompositePipe outpipe; |
| |
| public TextRenderer(CompositePipe pipe) { |
| outpipe = pipe; |
| } |
| |
| protected void drawGlyphList(SunGraphics2D sg2d, GlyphList gl) { |
| int num = gl.getNumGlyphs(); |
| Region clipRegion = sg2d.getCompClip(); |
| int cx1 = clipRegion.getLoX(); |
| int cy1 = clipRegion.getLoY(); |
| int cx2 = clipRegion.getHiX(); |
| int cy2 = clipRegion.getHiY(); |
| Object ctx = null; |
| try { |
| int[] bounds = gl.getBounds(); |
| Rectangle r = new Rectangle(bounds[0], bounds[1], |
| bounds[2] - bounds[0], |
| bounds[3] - bounds[1]); |
| Shape s = sg2d.untransformShape(r); |
| ctx = outpipe.startSequence(sg2d, s, r, bounds); |
| for (int i = 0; i < num; i++) { |
| gl.setGlyphIndex(i); |
| int metrics[] = gl.getMetrics(); |
| int gx1 = metrics[0]; |
| int gy1 = metrics[1]; |
| int w = metrics[2]; |
| int gx2 = gx1 + w; |
| int gy2 = gy1 + metrics[3]; |
| int off = 0; |
| if (gx1 < cx1) { |
| off = cx1 - gx1; |
| gx1 = cx1; |
| } |
| if (gy1 < cy1) { |
| off += (cy1 - gy1) * w; |
| gy1 = cy1; |
| } |
| if (gx2 > cx2) gx2 = cx2; |
| if (gy2 > cy2) gy2 = cy2; |
| if (gx2 > gx1 && gy2 > gy1 && |
| outpipe.needTile(ctx, gx1, gy1, gx2 - gx1, gy2 - gy1)) |
| { |
| byte alpha[] = gl.getGrayBits(); |
| outpipe.renderPathTile(ctx, alpha, off, w, |
| gx1, gy1, gx2 - gx1, gy2 - gy1); |
| } else { |
| outpipe.skipTile(ctx, gx1, gy1); |
| } |
| } |
| } finally { |
| if (ctx != null) { |
| outpipe.endSequence(ctx); |
| } |
| } |
| } |
| } |