Source Code Cross Referenced for Text.java in  » Ajax » Laszlo-4.0.10 » org » openlaszlo » iv » flash » api » text » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Ajax » Laszlo 4.0.10 » org.openlaszlo.iv.flash.api.text 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * $Id: Text.java,v 1.5 2002/07/16 20:17:30 skavish Exp $
003:         *
004:         * ==========================================================================
005:         *
006:         * The JGenerator Software License, Version 1.0
007:         *
008:         * Copyright (c) 2000 Dmitry Skavish (skavish@usa.net). All rights reserved.
009:         *
010:         * Redistribution and use in source and binary forms, with or without
011:         * modification, are permitted provided that the following conditions are met:
012:         *
013:         * 1. Redistributions of source code must retain the above copyright
014:         *    notice, this list of conditions and the following disclaimer.
015:         *
016:         * 2. Redistributions in binary form must reproduce the above copyright
017:         *    notice, this list of conditions and the following disclaimer in
018:         *    the documentation and/or other materials provided with the
019:         *    distribution.
020:         *
021:         * 3. The end-user documentation included with the redistribution, if
022:         *    any, must include the following acknowlegement:
023:         *    "This product includes software developed by Dmitry Skavish
024:         *     (skavish@usa.net, http://www.flashgap.com/)."
025:         *    Alternately, this acknowlegement may appear in the software itself,
026:         *    if and wherever such third-party acknowlegements normally appear.
027:         *
028:         * 4. The name "The JGenerator" must not be used to endorse or promote
029:         *    products derived from this software without prior written permission.
030:         *    For written permission, please contact skavish@usa.net.
031:         *
032:         * 5. Products derived from this software may not be called "The JGenerator"
033:         *    nor may "The JGenerator" appear in their names without prior written
034:         *    permission of Dmitry Skavish.
035:         *
036:         * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
037:         * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
038:         * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
039:         * DISCLAIMED.  IN NO EVENT SHALL DMITRY SKAVISH OR THE OTHER
040:         * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
041:         * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
042:         * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
043:         * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
044:         * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
045:         * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
046:         * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
047:         * SUCH DAMAGE.
048:         *
049:         */
050:
051:        package org.openlaszlo.iv.flash.api.text;
052:
053:        import java.io.*;
054:        import java.util.*;
055:        import java.awt.geom.*;
056:
057:        import org.openlaszlo.iv.flash.parser.*;
058:        import org.openlaszlo.iv.flash.util.*;
059:
060:        import org.openlaszlo.iv.flash.api.*;
061:        import org.openlaszlo.iv.flash.api.text.*;
062:        import org.openlaszlo.iv.flash.context.Context;
063:
064:        /**
065:         * This class represent MM Generator undocumented text tag.
066:         * <P>
067:         * It contains vector of {@link TextItem}s.
068:         *
069:         * @author Dmitry Skavish
070:         */
071:        public final class Text extends FlashDef implements  TextBlock {
072:
073:            public static final int PROPERTY_CONTROLLED = 0;
074:            public static final int MM_STYLE = 1;
075:            public static final int JG_STYLE = 2;
076:
077:            private boolean withAlpha; // true if color of change record has alpha
078:            private Rectangle2D bounds; // original bounds of the text
079:            private Rectangle2D genBounds; // bounds from MM Generator tag
080:            private int boundsStyle = PROPERTY_CONTROLLED;// jgen or MM bounds style, by default controlled by property
081:            private AffineTransform matrix; // matrix of the text
082:            private IVVector items = new IVVector();// vector of TextItems
083:            private TextLayout myLayout; // layout of this text
084:
085:            public Text() {
086:            }
087:
088:            public Text(boolean withAlpha) {
089:                this .withAlpha = withAlpha;
090:            }
091:
092:            public static Text newText() {
093:                Text t = new Text(true);
094:                t.matrix = new AffineTransform();
095:                return t;
096:            }
097:
098:            public int getTag() {
099:                if (withAlpha)
100:                    return Tag.DEFINETEXT2;
101:                return Tag.DEFINETEXT;
102:            }
103:
104:            // ------------------------------------------------------- //
105:            //                 TextBlock implementation                //
106:
107:            /**
108:             * Layout this text
109:             */
110:            public void layout() {
111:                if (myLayout != null)
112:                    return;
113:                doLayout();
114:            }
115:
116:            /**
117:             * Returns vector of {@link TextRecord}s from this text
118:             * of specified font.
119:             *
120:             * @param font   font of text records to be returned
121:             * @return text records of specified font
122:             */
123:            public IVVector getTextRecords(Font font) {
124:                layout();
125:                return myLayout.getTextRecords(font);
126:            }
127:
128:            /**
129:             * Returns vector of all {@link TextRecord}s and {@link TextStyleChangeRecord}s from this text
130:             *
131:             * @return all text records
132:             */
133:            public IVVector getAllTextRecords() {
134:                layout();
135:                return myLayout.getAllTextRecords();
136:            }
137:
138:            /**
139:             * Updates records' font.
140:             * <P>
141:             * Changes one specified font into another in all records.
142:             * In text records also updates indexes.
143:             *
144:             * @param old_font old font
145:             * @param new_font new font
146:             */
147:            public void changeFont(Font old_font, Font new_font) {
148:                layout();
149:                myLayout.changeFont(old_font, new_font);
150:            }
151:
152:            // ------------------------------------------------------- //
153:
154:            public void setBoundsStyle(int boundsStyle) {
155:                this .boundsStyle = boundsStyle;
156:            }
157:
158:            public int getBoundsStyle() {
159:                return boundsStyle;
160:            }
161:
162:            protected void doLayout() {
163:                myLayout = new TextLayout(this , genBounds != null ? genBounds
164:                        : bounds);
165:                myLayout.layout();
166:            }
167:
168:            public void collectDeps(DepsCollector dc) {
169:                for (int i = 0; i < items.size(); i++) {
170:                    TextItem t = (TextItem) items.elementAt(i);
171:                    if (t.font != null)
172:                        dc.addDep(t.font);
173:                }
174:            }
175:
176:            public void collectFonts(FontsCollector fc) {
177:                for (int i = 0; i < items.size(); i++) {
178:                    TextItem t = (TextItem) items.elementAt(i);
179:                    if (t.font != null)
180:                        fc.addFont(t.font, this );
181:                }
182:            }
183:
184:            public void apply(Context context) {
185:                if (myLayout != null)
186:                    return;
187:                super .apply(context);
188:                for (int i = 0; i < items.size(); i++) {
189:                    TextItem t = (TextItem) items.elementAt(i);
190:                    t.apply(context);
191:                }
192:                // after applying context text bound could be changed, so we need to layout text
193:                doLayout();
194:            }
195:
196:            public boolean isConstant() {
197:                for (int i = 0; i < items.size(); i++) {
198:                    TextItem t = (TextItem) items.elementAt(i);
199:                    if (!t.isConstant())
200:                        return false;
201:                }
202:                return true;
203:            }
204:
205:            public Rectangle2D getBounds() {
206:                // do I have to call layout here ? probably yes
207:                layout();
208:                return bounds;
209:            }
210:
211:            public void setGenBounds(Rectangle2D bounds) {
212:                this .genBounds = bounds;
213:            }
214:
215:            public void setBounds(Rectangle2D bounds) {
216:                this .bounds = bounds;
217:            }
218:
219:            public void setBounds(int x, int y, int width, int height) {
220:                setBounds(GeomHelper.newRectangle(x, y, width, height));
221:            }
222:
223:            /**
224:             * Returns vector of all text items ({@link TextItem}) of this text.
225:             *
226:             * @return vector of {@link TextItem}
227:             */
228:            public IVVector getTextItems() {
229:                return items;
230:            }
231:
232:            /**
233:             * Sets new vector of text items ({@link TextItem}) for this text.
234:             *
235:             * @param items  new vector of {@link TextItem}
236:             */
237:            public void setTextItems(IVVector items) {
238:                this .items = items;
239:            }
240:
241:            /**
242:             * Adds new text item to this text
243:             *
244:             * @param item   new text item to be added
245:             * @return added text item
246:             */
247:            public TextItem addTextItem(TextItem item) {
248:                items.addElement(item);
249:                return item;
250:            }
251:
252:            public void setMatrix(AffineTransform matrix) {
253:                this .matrix = matrix;
254:            }
255:
256:            public AffineTransform getMatrix() {
257:                return matrix;
258:            }
259:
260:            /**
261:             * Parses any DefineText tag.
262:             * <P>
263:             * If current parsed file is not generator template
264:             * then parse text lazy ({@link LazyText}).
265:             *
266:             * @param p         parser to parse with
267:             * @param withAlpha with alpha or not
268:             * @return LazyText or Text
269:             */
270:            public static FlashDef parse(Parser p, boolean withAlpha) {
271:                if (!p.getFile().isTemplate()) {
272:                    return LazyText.parse(p, withAlpha);
273:                } else {
274:                    Text text = new Text(withAlpha);
275:                    // get id
276:                    text.setID(p.getUWord());
277:                    // get bounds and matrix
278:                    text.bounds = p.getRect();
279:                    text.matrix = p.getMatrix();
280:
281:                    // do not parse futher, generator text tag will follow
282:                    p.skipLastTag();
283:
284:                    return text;
285:                }
286:            }
287:
288:            /**
289:             * Parses MM Generator define text tag: 0x2A.
290:             * <P>
291:             * Creates vector of TextItems
292:             */
293:            public void parseGenText(Parser p) {
294:                genBounds = p.getRect();
295:
296:                TextItem item = new TextItem();
297:                boolean wasText = false;
298:                for (;;) {
299:                    int code = p.getUByte();
300:                    if (code == 0) {
301:                        items.addElement(item);
302:                        break;
303:                    }
304:                    if ((code & 0x80) != 0) {
305:                        // control record
306:                        if (wasText) {
307:                            // save text item from previous record
308:                            items.addElement(item);
309:                            item = (TextItem) item.getCopy(null);
310:                            item.text = null;
311:                            wasText = false;
312:                        }
313:                        code = code & 0x7f;
314:                        switch (code) {
315:                        case 0: // bold, italic
316:                            item.style = p.getUByte();
317:                            break;
318:                        case 1: // font id
319:                            item.font = ((FontDef) p.getDef(p.getUWord()))
320:                                    .getFont();
321:                            break;
322:                        case 2: // font height
323:                            item.height = p.getUWord();
324:                            break;
325:                        case 3: // color with alpha
326:                            item.color = Color.parseRGBA(p);
327:                            break;
328:                        case 4: // 0 - normal, 1 - superscript, 2 - subscript
329:                            item.script = p.getUByte();
330:                            break;
331:                        case 5: // kerning
332:                            item.kerning = p.getWord();
333:                            break;
334:                        case 8: // left, center, right, justify
335:                            item.align = p.getUByte();
336:                            break;
337:                        case 9: // indent
338:                            item.indent = p.getWord();
339:                            break;
340:                        case 10: // left margin
341:                            item.marginleft = p.getWord();
342:                            break;
343:                        case 11: // right margin
344:                            item.marginright = p.getWord();
345:                            break;
346:                        case 12: // line space
347:                            item.linesp = p.getWord();
348:                            break;
349:                        default:
350:                            // there is nothing we can do, so just eat one byte
351:                            Log.logRB(Resource.UNKNOWNGENTEXT,
352:                                    new Object[] { Util.b2h(code) });
353:                            p.getUByte();
354:                            break;
355:                        }
356:                    } else {
357:
358:                        String encoding = p.getFile().getEncoding();
359:                        int length = code * 2;
360:                        String mystr;
361:
362:                        if (item.font != null
363:                                && (item.font.flags & Font.UNICODE) != 0) {
364:                            // font is Unicode, so try to convert to Unicode using specified or default
365:                            // encoding + we need to repair broken DBCS (if any)
366:                            byte[] buf = p.getTempByteBuf(length);
367:                            int size = gen2DBCSbytes(p.getBuf(), p.getPos(),
368:                                    length, buf);
369:                            if (encoding == null) {
370:                                mystr = new String(buf, 0, size);
371:                            } else {
372:                                try {
373:                                    mystr = new String(buf, 0, size, encoding);
374:                                } catch (UnsupportedEncodingException e) {
375:                                    Log.log(e);
376:                                    mystr = new String(buf, 0, size);
377:                                }
378:                            }
379:                            //System.out.println("unicode: '"+mystr+"'\n");
380:                        } else {
381:                            // font is not Unicode, so we must not convert to Unicode, just leave
382:                            // the characters as is + repair broken DBCS (if any)
383:                            char[] buf = p.getTempCharBuf(length / 2);
384:                            int size = gen2DBCSchars(p.getBuf(), p.getPos(),
385:                                    length, buf);
386:                            mystr = new String(buf, 0, size);
387:                            //System.out.println("normal: '"+mystr+"'\n");
388:                        }
389:
390:                        item.text = item.text == null ? mystr : item.text
391:                                + mystr;
392:
393:                        p.skip(length);
394:
395:                        wasText = true;
396:                    }
397:                }
398:            }
399:
400:            /**
401:             * Converts array of bytes in Macromedia Generator character format
402:             * into array of bytes suitable to be processed by encoding converters.
403:             * <P>
404:             * Chars are considered to be in broken DBCS, result is suitable to be
405:             * converted to UNICODE.
406:             *
407:             * @param buf    array of bytes in MM Generator char format
408:             * @param pos    position in this array
409:             * @param length length of this array
410:             * @param outbuf output buffer suitable to be converted to Unicode
411:             * @return size of output buffer
412:             */
413:            public static int gen2DBCSbytes(byte[] buf, int pos, int length,
414:                    byte[] outbuf) {
415:                int size = 0;
416:                for (int i = 0; i < length; i += 2) {
417:                    byte hi = buf[pos++];
418:                    byte lo = buf[pos++];
419:                    if (lo == 0) {
420:                        outbuf[size++] = hi;
421:                    } else {
422:                        outbuf[size + 1] = hi;
423:                        outbuf[size] = lo;
424:                        size += 2;
425:                    }
426:                }
427:                return size;
428:            }
429:
430:            /**
431:             * Converts array of bytes in Macromedia Generator character format
432:             * into array of DBCS bytes
433:             * <P>
434:             * Chars are considered to be in broken DBCS, result is DBCS
435:             *
436:             * @param buf    array of bytes in MM Generator char format
437:             * @param pos    position in this array
438:             * @param length length of this array
439:             * @param outbuf output buffer, array od DBCS chars
440:             * @return size of output buffer
441:             */
442:            public static int gen2DBCSchars(byte[] buf, int pos, int length,
443:                    char[] outbuf) {
444:                int size = 0;
445:                for (int i = 0; i < length; i += 2) {
446:                    int hi = buf[pos++] & 0xff;
447:                    int lo = buf[pos++] & 0xff;
448:                    if (lo == 0) {
449:                        outbuf[size++] = (char) hi;
450:                    } else {
451:                        outbuf[size++] = (char) ((hi << 8) | lo);
452:                    }
453:                }
454:                return size;
455:            }
456:
457:            public void write(FlashOutput fob) {
458:                write(fob, this );
459:            }
460:
461:            public void write(FlashOutput fob, FlashDef def) {
462:                int start = fob.getPos(); // save for tag
463:                fob.skip(6); // 6 - long tag
464:                fob.writeDefID(def);
465:
466:                layout();
467:                fob.write(bounds);
468:                fob.write(matrix);
469:
470:                myLayout.write(fob);
471:
472:                int size = fob.getPos() - start - 6; // 6 - long tag
473:                // we need to generate Tag.DEFINETEXT2 all the time tag because from generator text we get rgba colors
474:                fob.writeLongTagAt(Tag.DEFINETEXT2, size, start);
475:            }
476:
477:            public void printContent(PrintStream out, String indent) {
478:                out.println(indent + "Text: id=" + getID());
479:                out.println(indent + "    bounds: " + bounds);
480:                out.println(indent + "    genBounds: " + genBounds);
481:                out.println(indent + "    " + matrix);
482:
483:                TextItem last = new TextItem();
484:                for (int i = 0; i < items.size(); i++) {
485:                    TextItem t = (TextItem) items.elementAt(i);
486:                    out.println(indent + "    TextItem: '" + t.text + "'");
487:                    if (t.font != last.font)
488:                        out.println(indent + "      font  : '"
489:                                + t.font.getFontName() + "'");
490:                    if (t.height != last.height)
491:                        out.println(indent + "      height: " + t.height);
492:                    if (t.style != last.style)
493:                        out.println(indent + "      style : " + t.style);
494:                    if (t.align != last.align)
495:                        out.println(indent + "      align : " + t.align);
496:                    if (t.indent != last.indent)
497:                        out.println(indent + "      indent: " + t.indent);
498:                    if (t.linesp != last.linesp)
499:                        out.println(indent + "      linesp: " + t.linesp);
500:                    if (t.kerning != last.kerning)
501:                        out.println(indent + "      kerning: " + t.kerning);
502:                    if (t.script != last.script)
503:                        out.println(indent + "      script: " + t.script);
504:                    if (t.marginleft != last.marginleft)
505:                        out.println(indent + "      margin left: "
506:                                + t.marginleft);
507:                    if (t.marginright != last.marginright)
508:                        out.println(indent + "      margin right : "
509:                                + t.marginright);
510:                    if (t.color != last.color)
511:                        t.color.printContent(out, indent + "      ");
512:                    last = t;
513:                }
514:            }
515:
516:            protected FlashItem copyInto(FlashItem item, ScriptCopier copier) {
517:                super .copyInto(item, copier);
518:                ((Text) item).withAlpha = withAlpha;
519:                ((Text) item).bounds = (Rectangle2D) bounds.clone();
520:                ((Text) item).genBounds = genBounds == null ? null
521:                        : (Rectangle2D) genBounds.clone();
522:                ((Text) item).matrix = (AffineTransform) matrix.clone();
523:                ((Text) item).items = items.getCopy(copier);
524:                ((Text) item).myLayout = myLayout == null ? null : myLayout
525:                        .getCopy(copier);
526:                return item;
527:            }
528:
529:            public FlashItem getCopy(ScriptCopier copier) {
530:                return copyInto(new Text(), copier);
531:            }
532:        }
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