| /* |
| ******************************************************************************* |
| * Copyright (C) 1996-2007, International Business Machines Corporation and * |
| * others. All Rights Reserved. * |
| ******************************************************************************* |
| */ |
| package com.ibm.icu.dev.demo.rbbi; |
| |
| import java.awt.*; |
| import java.awt.event.WindowEvent; |
| import java.awt.event.KeyAdapter; |
| import java.awt.event.KeyEvent; |
| import java.awt.event.ItemListener; |
| import java.awt.event.ItemEvent; |
| import javax.swing.JTextArea; |
| import javax.swing.JScrollPane; |
| import javax.swing.BorderFactory; |
| import java.util.*; |
| import com.ibm.icu.dev.demo.impl.*; |
| import com.ibm.icu.text.BreakIterator; |
| |
| public class DBBIDemo extends DemoApplet |
| { |
| /** |
| * For serialization |
| */ |
| private static final long serialVersionUID = 7175919574190623523L; |
| |
| public static void main(String argv[]) { |
| Locale.setDefault(new Locale("en", "US", "DEMO")); |
| new DBBIDemo().showDemo(); |
| } |
| |
| public Frame createDemoFrame(DemoApplet applet) { |
| return new DBBIFrame(applet); |
| } |
| } |
| |
| |
| |
| class DBBIFrame extends Frame implements ItemListener |
| { |
| |
| /** |
| * For serialization |
| */ |
| private static final long serialVersionUID = -5905807460776050144L; |
| private static final Font choiceFont = null; |
| private static final boolean DEBUG = false; |
| private DemoApplet applet; |
| |
| final String right = "-->"; |
| final String left = "<--"; |
| |
| private BreakIterator iter; |
| private static boolean isctrldown_ = false; |
| |
| JTextArea text; |
| // TextArea text; |
| Choice bound; |
| |
| public DBBIFrame(DemoApplet applet) |
| { |
| this.applet = applet; |
| init(); |
| start(); |
| } |
| |
| |
| |
| public void run() |
| { |
| /* |
| while (true) { |
| try { |
| checkChange(); |
| Thread.sleep(250); |
| } |
| catch (InterruptedException e) { |
| } |
| catch (Exception e) { |
| } |
| catch (Throwable e) { |
| } |
| } |
| */ |
| } |
| |
| int start, end; |
| int ts, te; |
| |
| public void checkChange() |
| { |
| // System.out.println("checkChange..."); |
| if ((text.getSelectionStart() & 0x7FFF) != ts || |
| (text.getSelectionEnd() & 0x7FFF) != te) { |
| |
| // not used int tempS = text.getSelectionStart() & 0x7FFF; |
| // not used int tempE = text.getSelectionEnd() & 0x7FFF; |
| |
| // System.out.println(">"); |
| // select(0, 0); |
| // select(tempS, tempE); |
| //select(tempS - (ts - s), tempE - (te - e)); |
| // System.out.println("<"); |
| |
| |
| // if (s != ts || e != te) System.out.println(" s("+s+") ts("+ts+") e("+e+") te("+te+")"); |
| // if (tempS != ts || tempE != te) System.out.println(">s("+s+") tempS("+tempS+") e("+e+") tempE("+tempE+")"); |
| // select(s - (ts - s), e - (te - e)); |
| // if (tempS != ts || tempE != te) System.out.println("s("+s+") tempS("+tempS+") e("+e+") tempE("+tempE+")"); |
| |
| // System.out.println("lkdslksj"); |
| } |
| } |
| |
| public void select(int sIn, int eIn) |
| { |
| start = sIn; |
| end = eIn; |
| text.select(start, end); |
| ts = text.getSelectionStart() & 0x7FFF; |
| te = text.getSelectionEnd() & 0x7FFF; |
| // if (s != ts || e != te) { |
| // System.out.println(">s("+s+") ts("+ts+") e("+e+") te("+te+")"); |
| // System.out.println(" "+(ts-s)+","+(te-e)); |
| // } |
| } |
| |
| public int getSelectionStart() |
| { |
| checkChange(); |
| // return s; |
| return text.getSelectionStart() & 0x7FFF; |
| } |
| |
| |
| public int getSelectionEnd() |
| { |
| checkChange(); |
| // return e; |
| return text.getSelectionEnd() & 0x7FFF; |
| } |
| |
| public final synchronized void selectRange(int s, int e) |
| { |
| try { |
| //if (getSelectionStart() != s || getSelectionEnd() != e) { |
| //text.select(s, e); |
| select(s,e); |
| //} |
| // if (getSelectionStart() != s || getSelectionEnd() != e) { |
| // System.out.println("AGH! select("+s+","+e+") -> ("+ |
| // getSelectionStart()+","+getSelectionEnd()+")"); |
| // text.select(s - (getSelectionStart() - s), e - (getSelectionEnd() - e)); |
| // } |
| } catch (Exception exp) { |
| errorText(exp.toString()); |
| } |
| } |
| |
| |
| |
| public void init() |
| { |
| buildGUI(); |
| } |
| |
| |
| public void start() |
| { |
| } |
| |
| |
| void addWithFont(Container container, Component foo, Font font) { |
| if (font != null) |
| foo.setFont(font); |
| container.add(foo); |
| } |
| |
| |
| |
| public void buildGUI() |
| { |
| setBackground(DemoUtility.bgColor); |
| setLayout(new BorderLayout()); |
| |
| Panel topPanel = new Panel(); |
| |
| Label titleLabel = |
| new Label("Text Boundary Demo", Label.CENTER); |
| titleLabel.setFont(DemoUtility.titleFont); |
| topPanel.add(titleLabel); |
| |
| //Label demo=new Label(creditString, Label.CENTER); |
| //demo.setFont(DemoUtility.creditFont); |
| //topPanel.add(demo); |
| |
| Panel choicePanel = new Panel(); |
| |
| Label demo1=new Label("Boundaries", Label.LEFT); |
| demo1.setFont(DemoUtility.labelFont); |
| choicePanel.add(demo1); |
| |
| bound = new Choice(); |
| bound.setBackground(DemoUtility.choiceColor); |
| bound.addItem("Sentence"); |
| bound.addItem("Line Break"); |
| bound.addItem("Word"); |
| bound.addItem("Char"); |
| |
| bound.addItemListener(this); |
| if (choiceFont != null) |
| bound.setFont(choiceFont); |
| |
| choicePanel.add(bound); |
| topPanel.add(choicePanel); |
| |
| DemoUtility.fixGrid(topPanel,1); |
| |
| |
| add("North", topPanel); |
| |
| |
| int ROWS = 15; |
| int COLUMNS = 50; |
| // text = new TextArea(getInitialText(), ROWS, COLUMNS); |
| text = new JTextArea(getInitialText(), ROWS, COLUMNS); |
| text.setLineWrap(true); |
| text.setWrapStyleWord(true); |
| text.setEditable(true); |
| text.selectAll(); |
| text.setFont(DemoUtility.editFont); |
| text.setBorder(BorderFactory.createEmptyBorder(2, 2, 2, 2)); |
| |
| add("Center", new JScrollPane(text, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, |
| JScrollPane.HORIZONTAL_SCROLLBAR_NEVER)); |
| |
| Panel copyrightPanel = new Panel(); |
| addWithFont (copyrightPanel, |
| new Label(DemoUtility.copyright1, Label.LEFT),DemoUtility.creditFont); |
| DemoUtility.fixGrid(copyrightPanel,1); |
| add("South", copyrightPanel); |
| |
| //layout(); |
| handleEnumChanged(); |
| |
| enableEvents(WindowEvent.WINDOW_CLOSING); |
| enableEvents(KeyEvent.KEY_PRESSED); |
| enableEvents(KeyEvent.KEY_RELEASED); |
| |
| text.addKeyListener(new KeyAdapter() { |
| public void keyPressed(KeyEvent e) { |
| if (e.isControlDown()) { |
| int kc = e.getKeyCode(); |
| switch (kc) { |
| case KeyEvent.VK_N: |
| case KeyEvent.VK_RIGHT: |
| handleForward(); |
| break; |
| case KeyEvent.VK_P: |
| case KeyEvent.VK_LEFT: |
| handleBackward(); |
| break; |
| default: |
| break; |
| } |
| e.consume(); |
| } |
| } |
| public void keyReleased(KeyEvent e) { |
| if (e.isControlDown()) { |
| e.consume(); |
| } |
| } |
| public void keyTyped(KeyEvent e) { |
| if (e.isControlDown()) { |
| e.consume(); |
| } |
| } |
| }); |
| |
| // (new Thread(this)).start(); |
| } |
| |
| |
| |
| public String getInitialText() |
| { |
| return |
| "When,inthecourseofhumanevents,itbecomesnecessaryforonepeopletodissolvethepoliticalbondswhichhave" |
| + "connectedthemwithanother,andtoassumeamongthepowersoftheearth,theseparateandequalstationtowhichthelaws" |
| + "ofnatureandofnature'sGodentitlethem,adecentrespecttotheopinionsofmankindrequiresthattheyshoulddeclarethe" |
| + "causeswhichimpelthemtotheseparation.\n" |
| + "Weholdthesetruthstobeself-evident,thatallmenarecreatedequal,thattheyareendowedbytheirCreatorwithcertain" |
| + "unalienablerights,thatamongthesearelife,libertyandthepursuitofhappiness.Thattosecuretheserights,governmentsare" |
| + "institutedamongmen,derivingtheirjustpowersfromtheconsentofthegoverned.Thatwheneveranyformofgovernment" |
| + "becomesdestructivetotheseends,itistherightofthepeopletoalterortoabolishit,andtoinstitutenewgovernment,laying" |
| + "itsfoundationonsuchprinciplesandorganizingitspowersinsuchform,astothemshallseemmostlikelytoeffecttheirsafety" |
| + "andhappiness.Prudence,indeed,willdictatethatgovernmentslongestablishedshouldnotbechangedforlightandtransient" |
| + "causes;andaccordinglyallexperiencehathshownthatmankindaremoredisposedtosuffer,whileevilsaresufferable,than" |
| + "torightthemselvesbyabolishingtheformstowhichtheyareaccustomed.Butwhenalongtrainofabusesandusurpations," |
| + "pursuinginvariablythesameobjectevincesadesigntoreducethemunderabsolutedespotism,itistheirright,itistheirduty," |
| + "tothrowoffsuchgovernment,andtoprovidenewguardsfortheirfuturesecurity.--Suchhasbeenthepatientsufferanceof" |
| + "thesecolonies;andsuchisnowthenecessitywhichconstrainsthemtoaltertheirformersystemsofgovernment.Thehistory" |
| + "ofthepresentKingofGreatBritainisahistoryofrepeatedinjuriesandusurpations,allhavingindirectobjectthe" |
| + "establishmentofanabsolutetyrannyoverthesestates.Toprovethis,letfactsbesubmittedtoacandidworld.\n" |
| + "Hehasrefusedhisassenttolaws,themostwholesomeandnecessaryforthepublicgood.\n" |
| + "Hehasforbiddenhisgovernorstopasslawsofimmediateandpressingimportance,unlesssuspendedintheiroperationtill" |
| + "hisassentshouldbeobtained;andwhensosuspended,hehasutterlyneglectedtoattendtothem.\n" |
| + "Hehasrefusedtopassotherlawsfortheaccommodationoflargedistrictsofpeople,unlessthosepeoplewouldrelinquish" |
| + "therightofrepresentationinthelegislature,arightinestimabletothemandformidabletotyrantsonly.\n" |
| + "Hehascalledtogetherlegislativebodiesatplacesunusual,uncomfortable,anddistantfromthedepositoryoftheirpublic" |
| + "records,forthesolepurposeoffatiguingthemintocompliancewithhismeasures.\n" |
| + "Hehasdissolvedrepresentativehousesrepeatedly,foropposingwithmanlyfirmnesshisinvasionsontherightsofthepeople.\n" |
| + "Hehasrefusedforalongtime,aftersuchdissolutions,tocauseotherstobeelected;wherebythelegislativepowers," |
| + "incapableofannihilation,havereturnedtothepeopleatlargefortheirexercise;thestateremaininginthemeantimeexposed" |
| + "toallthedangersofinvasionfromwithout,andconvulsionswithin.\n" |
| + "Hehasendeavoredtopreventthepopulationofthesestates;forthatpurposeobstructingthelawsfornaturalizationof" |
| + "foreigners;refusingtopassotherstoencouragetheirmigrationhither,andraisingtheconditionsofnewappropriationsof" |
| + "lands.\n" |
| + "Hehasobstructedtheadministrationofjustice,byrefusinghisassenttolawsforestablishingjudiciarypowers.\n" |
| + "Hehasmadejudgesdependentonhiswillalone,forthetenureoftheiroffices,andtheamountandpaymentoftheirsalaries.\n" |
| + "Hehaserectedamultitudeofnewoffices,andsenthitherswarmsofofficerstoharassourpeople,andeatouttheir" |
| + "substance.\n" |
| + "Hehaskeptamongus,intimesofpeace,standingarmieswithouttheconsentofourlegislature.\n" |
| + "Hehasaffectedtorenderthemilitaryindependentofandsuperiortocivilpower.\n" |
| + "Hehascombinedwithotherstosubjectustoajurisdictionforeigntoourconstitution,andunacknowledgedbyourlaws;" |
| + "givinghisassenttotheiractsofpretendedlegislation:\n" |
| + "Forquarteringlargebodiesofarmedtroopsamongus:\n" |
| + "Forprotectingthem,bymocktrial,frompunishmentforanymurderswhichtheyshouldcommitontheinhabitantsofthese" |
| + "states:\n" |
| + "Forcuttingoffourtradewithallpartsoftheworld:\n" |
| + "Forimposingtaxesonuswithoutourconsent:\n" |
| + "Fordeprivingusinmanycases,ofthebenefitsoftrialbyjury:\n" |
| + "Fortransportingusbeyondseastobetriedforpretendedoffenses:\n" |
| + "ForabolishingthefreesystemofEnglishlawsinaneighboringprovince,establishingthereinanarbitrarygovernment,and" |
| + "enlargingitsboundariessoastorenderitatonceanexampleandfitinstrumentforintroducingthesameabsoluteruleinthese" |
| + "colonies:\n" |
| + "Fortakingawayourcharters,abolishingourmostvaluablelaws,andalteringfundamentallytheformsofourgovernments:\n" |
| + "Forsuspendingourownlegislatures,anddeclaringthemselvesinvestedwithpowertolegislateforusinallcaseswhatsoever.\n" |
| + "Hehasabdicatedgovernmenthere,bydeclaringusoutofhisprotectionandwagingwaragainstus.\n" |
| + "Hehasplunderedourseas,ravagedourcoasts,burnedourtowns,anddestroyedthelivesofourpeople.\n" |
| + "Heisatthistimetransportinglargearmiesofforeignmercenariestocompletetheworksofdeath,desolationandtyranny," |
| + "alreadybegunwithcircumstancesofcrueltyandperfidyscarcelyparalleledinthemostbarbarousages,andtotallyunworthy" |
| + "theheadofacivilizednation.\n" |
| + "Hehasconstrainedourfellowcitizenstakencaptiveonthehighseastobeararmsagainsttheircountry,tobecomethe" |
| + "executionersoftheirfriendsandbrethren,ortofallthemselvesbytheirhands.\n" |
| + "Hehasexciteddomesticinsurrectionsamongstus,andhasendeavoredtobringontheinhabitantsofourfrontiers,the" |
| + "mercilessIndiansavages,whoseknownruleofwarfare,isundistinguisheddestructionofallages,sexesandconditions.\n" |
| + "Ineverystageoftheseoppressionswehavepetitionedforredressinthemosthumbleterms:ourrepeatedpetitionshave" |
| + "beenansweredonlybyrepeatedinjury.Aprince,whosecharacteristhusmarkedbyeveryactwhichmaydefineatyrant,is" |
| + "unfittobetherulerofafreepeople.\n" |
| + "NorhavewebeenwantinginattentiontoourBritishbrethren.Wehavewarnedthemfromtimetotimeofattemptsbytheir" |
| + "legislaturetoextendanunwarrantablejurisdictionoverus.Wehaveremindedthemofthecircumstancesofouremigration" |
| + "andsettlementhere.Wehaveappealedtotheirnativejusticeandmagnanimity,andwehaveconjuredthembythetiesofour" |
| + "commonkindredtodisavowtheseusurpations,which,wouldinevitablyinterruptourconnectionsandcorrespondence.We" |
| + "must,therefore,acquiesceinthenecessity,whichdenouncesourseparation,andholdthem,asweholdtherestofmankind," |
| + "enemiesinwar,inpeacefriends.\n" |
| + "We,therefore,therepresentativesoftheUnitedStatesofAmerica,inGeneralCongress,assembled,appealingtothe" |
| + "SupremeJudgeoftheworldfortherectitudeofourintentions,do,inthename,andbytheauthorityofthegoodpeopleof" |
| + "thesecolonies,solemnlypublishanddeclare,thattheseunitedcoloniesare,andofrightoughttobefreeandindependent" |
| + "states;thattheyareabsolvedfromallallegiancetotheBritishCrown,andthatallpoliticalconnectionbetweenthemandthe" |
| + "stateofGreatBritain,isandoughttobetotallydissolved;andthatasfreeandindependentstates,theyhavefullpowerto" |
| + "leveywar,concludepeace,contractalliances,establishcommerce,andtodoallotheractsandthingswhichindependent" |
| + "statesmayofrightdo.Andforthesupportofthisdeclaration,withafirmrelianceontheprotectionofDivineProvidence,we" |
| + "mutuallypledgetoeachotherourlives,ourfortunesandoursacredhonor.\n"; |
| } |
| |
| |
| public void handleEnumChanged() |
| { |
| String s = bound.getSelectedItem(); |
| if (s.equals("Char")) { |
| errorText("getCharacterInstance"); |
| iter = BreakIterator.getCharacterInstance(); |
| } |
| else if (s.equals("Word")) { |
| errorText("getWordInstance"); |
| iter = BreakIterator.getWordInstance(); |
| } |
| else if (s.equals("Line Break")) { |
| errorText("getLineInstance"); |
| iter = BreakIterator.getLineInstance(); |
| } |
| else /* if (s.equals("Sentence")) */ { |
| errorText("getSentenceInstance"); |
| iter = BreakIterator.getSentenceInstance(); |
| } |
| iter.setText(text.getText()); |
| selectRange(0, 0); |
| //text.select(0,0); |
| } |
| |
| public void handleForward() |
| { |
| try { |
| // System.out.println("entering handleForward"); |
| iter.setText(text.getText()); |
| int oldStart = getSelectionStart(); |
| int oldEnd = getSelectionEnd(); |
| |
| // System.out.println("handleForward: oldStart=" + oldStart + ", oldEnd=" + oldEnd); |
| |
| if (oldEnd < 1) { |
| selectRange(0, iter.following(0)); |
| } |
| else { |
| int s = iter.following(oldEnd-1); |
| int e = iter.next(); |
| if (e == -1) { |
| e = s; |
| } |
| selectRange(s, e); |
| } |
| //text.select(s, e); |
| errorText("<" + oldStart + "," + oldEnd + "> -> <" + |
| start + "," + end + ">"); |
| } |
| catch (Exception exp) { |
| errorText(exp.toString()); |
| } |
| } |
| |
| public void handleBackward() |
| { |
| try { |
| iter.setText(text.getText()); |
| int oldStart = getSelectionStart(); |
| int oldEnd = getSelectionEnd(); |
| if (oldStart < 1) { |
| selectRange(0, 0); |
| } |
| else { |
| int e = iter.following(oldStart-1); |
| int s = iter.previous(); |
| selectRange(s, e); |
| } |
| //text.select(s, e); |
| errorText("<" + oldStart + "," + oldEnd + "> -> <" + start + "," + end + ">"); |
| } |
| catch (Exception exp) { |
| errorText(exp.toString()); |
| } |
| } |
| |
| public void itemStateChanged(ItemEvent evt) |
| { |
| if (evt.getSource() instanceof Choice) { |
| handleEnumChanged(); |
| } |
| } |
| |
| public void errorText(String s) |
| { |
| if (DEBUG) |
| System.out.println(s); |
| } |
| |
| protected void processWindowEvent(WindowEvent evt) |
| { |
| if (evt.getID() == WindowEvent.WINDOW_CLOSING && |
| evt.getWindow() == this) { |
| hide(); |
| dispose(); |
| if (applet != null) { |
| applet.demoClosed(); |
| } else System.exit(0); |
| } |
| } |
| |
| protected void processKeyEvent(KeyEvent evt) |
| { |
| switch (evt.getID()) { |
| case KeyEvent.KEY_PRESSED : |
| if (evt.getKeyCode() == KeyEvent.VK_CONTROL) { |
| isctrldown_ = true; |
| } |
| break; |
| case KeyEvent.KEY_RELEASED : |
| // key detection for left and right buttons are removed |
| // to emulate the old release behaviour |
| int key = evt.getKeyCode(); |
| if (key == KeyEvent.VK_N && isctrldown_) { |
| handleForward(); |
| } |
| else |
| if (key == KeyEvent.VK_P && isctrldown_) { |
| handleBackward(); |
| } |
| else |
| if (key == KeyEvent.VK_CONTROL) { |
| isctrldown_ = false; |
| } |
| break; |
| } |
| } |
| } |
