6.lập trình gui trong java

7/25/2019 6.Lp trnh GUI trong Java

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Lp Trnh Giao Din


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GUIs

Gi AWTc s dng trong cc phin bn trc !d"#$%&!a'a%(

Swingc a ')o trong phin bn !d"#$% ') c nhi*+ch,c n-ng h.n /0T

Swing Componentsth1ng c tn b2t 3+ 'i 4546 /0T c 7pPanel6 89ing c 7p t.ng ,ng 7)JPanel


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Graphical User Interface (GUI)

T (Abstract Windows Toolkits) importjava.awt.*

in" (#ava $o%ndation &lasses 'acka"e) importjava.swin".*

import java.awt.*

import java.awt.event.*

Tt c!win" component c+ t,n b-t /% v0i #1


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The Swing API

Gi 89ing 7) # th)nh ph3n c:aJava Foundation Classes&5;?t tp cc ch,c n-ng gi@p ABC dng cc,ng dng GEF$


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GUI

Java GUI hierarchy

Hb!Ict

Insion

;ont

FontMetrics

Graphics


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GUI

Java GUI hierarchy

JComponent

JMenuBar

Astract!utton

JScrollPane

JPanel

JTe"tComponent

JLabel

JomboBo!

JMenuItem

JButton

J"e!tArea

J"e!tFiel# JPa$$wor#Fiel#

% etc& Swing

%

lightweight heavyweight


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Swing Components

89ing ponInts c nhi*+ >,c "hc nha+

,c n)C +i Mnh cc ponInt trong # ,ng dng

GEF "Nt hp 'i nha+$


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2h3i ni4m container

L thnh phn m c th cha cc thnh phn khc,c th

v v t mu. Frame/JFrame, Panel/JPanel, Dial!/JDial!,

"crllPane/J"crllPane, # $%n cmpnent v khun! cha

cntainer&'(.a))*cmp&'(+

L- thn! tin ca cmpnent '(ect0ame.!et#* +

$n thn! tin ch cmpnent '(ect0ame.1et#* +


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5"%6,n t-c 76 d8n" GUI tron"java

L2a ch3n 4 cntainer5 Frame/JFrame, 6in)7/J6in)7,

Dial!/JDial!, # 89 cc :i;u khin5 *'uttn1, tea cc :i;u khin v v?n! cha "%p


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&ontainment 9ierarch6

"op'level container( JFrame) JDialog) JApplet


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:; ? ar"s) @ $rame frame B new $rame()

frame.set:isible(tr%e) 99

AppFrame-&*ava

clo$ing win#ow

456

756


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Containment Hierarchy

Top LI'I7IdiatIic

ponInt P

/to>ic

ponInt P

/to>ic

ponInt P


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"op Level

&5;ra>I(

Interme#iate

&5JanI7(

Atomic

&5Q+tton(

Atomic

&5LabI7(


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Top LI'I7


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FntIr>IdiatI


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/to>ic ponInts6 YhZng ch,a cc ponInts "hc6 DVng R c+ng c=p thZng tin Nn ng1i s dng6 WoXc 7=C thZng tin t[ ng1i s dng

6 S dU 5Q+tton 5LabI7 5boQoA 5TIAt;iI7d

5Tab7I


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\Oi Top LI'I7 IdiatI ponInt phig2n ')o contInt panI6S d 65;ra>I ]ra>I ^ nI9 5;ra>I&$$$(_

5JanI7panI ^ nI9 5JanI7&(_]ra>I$gIt


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2h3i ni4m Ca6o%t Dana"er

Ec l9i laut khc nhau5

Fl7 Laut r)er Laut $ri) Laut

$ri)a! Laut 0ull Laut

# 8rGnh HuIn lC laut :>c thi@t lKp 'n! cch !3i ph>Mn!

thc NsetCa6o%t( )O


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$lowCa6o%t

L trGnh HuIn lC laut mc :Qnh ch cc applet v cc panel

RSi Fl7Laut cc thnh phn 1 :>c


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$lowCa6o%t

;7o9 LaCo+t 6 LI]t and `ight /7ignId


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EorderCa6o%t

L trGnh HuIn lC laut mc :Qnh ch 6in)7, Frame vDial!

8rGnh HuIn lC n c th Sn! 0&W8Y, [\"8,"&]8Y, 6["8 v E[08[W ca cntainer

R^ )_5 = thAm m`t thnh phn v v?n! 0rth cacntainer uttn '4V ne7 uttn*0rth uttnb+ 1etLaut*ne7 r)erLaut* ++ a))*'4, r)erLaut.0&W8Y+


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EorderCa6o%t


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GridCa6o%t

W tr 'ic chia containIr th)nh>?t 7i


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GridEa"Ca6o%t

tr^ cc thnh phn m`t cch ch^nh Sc Ec thnh phn :>c Sn! tT trif

1an!fphIi v trAnfSi

Ym cn1tructr $ri)a!Laut !' V ne7 $ri)a!Laut* +


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GridEa"Ca6o%t

Lp eGri#BagLayouton$traint$f 7+tr t=t c cc thZng tin >) 7p GridLaCo+tC+ c3+U SM tr ') "ch th+c >i th)nhph3n


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5%llCa6o%t

T do trong 'ic Mnh 'M tr ') "ch thc c:a cc co>ponInts

Frame $r % new Frame&'(ullLayout )emo'*+

$r,setLayout&null*+


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Swing Components

!F


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!F


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add set "et method

'hHn" thJc dKn" L "-ncomponentsM

object5ame.add(1 )

'hHn" thJc dKn" L l6 th%Nc t;nhM

object5ame."et( )

'hHn" thJc dKn" L "3n th%Nct;nhM

object5ame.set( )

O. Usin" !win" &omponents

DP hQ h F lR ki4


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DP hQnh F lR s8 ki4n

Z hnh A 7 s "inU

Pg+jn pht sinh s "in &I'Int so+rcI(

8 "in &I'Int ob!Ict(

Q? 72ng nghI s "in &I'Int 7istInIr(

SF CR !8 2i4n


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:hai b;o l

$? @in

public cla$$ Myla$$ implement$ CventLi$tener

Ei t c;c phHng thc trong li$tener inter0ace&

K #( ActionLi$tener public voi# actionPer0orme#1ActionCvent e2 .

&&&//co#e that react$ to the action&&& 9

GNn bO != l> vEo component $omeomponent&a##CventLi$tener1

in$tance0Myla$$2,

SF CR !8 2i4n

9 h N ki4 l- h


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9nh Nn" s8 ki4n l-n" n"he

=i t>n! "2 kin ` l%n! n!he6in)7, Frame, # 6in)7[vent 6in)7Li1tener

uttn, genuXtem, # \ctin[vent \ctinLi1tener

8e


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JLabelLaeldVng R hiRn thM >?t ch+i '-n bn thZng th1ng

nhk> >Z t th> thZng tin cho cc i tng "hc$


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Cc thuc tnh JLabel

text

icon

horizontalAlignment

verticalAlignment

Esing LabI7s


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V D

JButton


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JButton!utton7) >?t th)nh ph3n gBC ra >?t s "in h)nh ?ng

"hi c "ch ch+?t$


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Cc thuc tnhJButton text

icon

mnemonic

horizontalAlignment

verticalAlignment horizontalTextPosition

verticalTextPosition

Esing Q+ttons

pngccskinJButton


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p ng cc s kinJButton ublic voi! actionPer"orme!(Action#vent e)

$

%% &et the button label

String action'omman! egetAction'omman!()*

%% +ae sure the event source is Le"t button

i" (egetSource() instanceo" JButton) %% +ae sure it is the right button

i" (-Le"t-e.uals(action'omman!))

S/stemoutrintln (-Button

resse!0-)* 1


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Menus


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Menus

5a'a c+ng c=p >?t s 7p l J+enuBar J+enu

J+enuItem, J'hecBox+enuItem, ')J2a!ioButton+enuItem 3R thc thi >In+ trong >?t

]ra>I$

\?t J4ramehoXc JAletc thR ch,a >?t menu ar

trn c g2n ccpull-down menu$ In+ ch,a cc

menu itemR ng1i dVng 7a chOn &hoXc btmt2t($ \In+ bar

c thR c AI> nh >?t c=+ tr@c R h tr cc >In+$

Menu Demo


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Menu Demo

LpJMenuBar


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LpJMenuBarMenu arch,a cc >In+_ >In+ bar ch c thR c th>

')o # ]ra>I$ on codI sa+ to ') th> >?t 5\In+Qar')o

# ]ra>IU

J4rame " ne5 J4rame()*

"setSize(677, 877)*

"set9isible(true)*

J+enuBar mb ne5 J+enuBar()*

"setJ+enuBar(mb)*

LpMenu


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LpMenuQn g2n cc >In+ ')o >?t J+enuBar$ on codI sa+ to

% >In+ 4ile') :el ') th> ch@ng ')o J+enuBar

mbU

J+enu "ile+enu ne5 J+enu(-4ile-, "alse)*

J+enu hel+enu ne5 J+enu(-:el-, true)*

mba!!("ile+enu)*

mba!!(hel+enu)*

LpJMenuItem


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LpJMenuItemon codI sa+ th> cc >c chOn &>In+ itI>( ') cc

sIparator trong >In+ "ile+enuU

"ile+enua!!(ne5 J+enuItem(-;e5-))*

"ile+enua!!(ne5 J+enuItem(-


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Submenus

Qn c thR th> cc s+b>In+s ')o cc >In+ itI>$ on codI sa+ th> cc

s+b>In+ qEniA qPT ') q0in ')o trong >c chOn q8o]t9arI$

J+enu so"t5are:elSub+enu ne5 J+enu(-So"t5are-)*

J+enu har!5are:elSub+enu ne5 J+enu(-:ar!5are-)*

hel+enua!!(so"t5are:elSub+enu)*

hel+enua!!(har!5are:elSub+enu)*

so"t5are:elSub+enua!!(ne5 J+enuItem(-=nix-))*

so"t5are:elSub+enua!!(ne5 J+enuItem(-;T-))*

so"t5are:elSub+enua!!(ne5 J+enuItem(->in?@-))*

Submenu Demo


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Submenu Demo


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SWING Dialog Boxes


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Phn thZng tin t[ ng1i s dng

s 7i+

danh >c tp tin

WiRn thM "Nt +

hiRn thM thZng tin cnh bo

in "Nt + 7n >)n hnh

JOptionPane


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J


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JIthod ca77

JOptionPane


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sho5'on"irmialog Ass a con"irming.uestion, lie /es%no%cancel

sho5Inutialog Promt "or some inut

sho5+essageialog Tell the user aboutsomething that has

haene!

sho5


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%% static metho! call

J


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Using JOptionPane


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%% static metho! call

J


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J


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int sho9HpInDia7og&ponInt parInt(U >u h?p

thoi Oc tp tin int sho98a'IDia7og&ponInt parInt(U >u h?p

thoi 7+ tp tin 5;i7Iu h?p thoi

ghimOc tp tin ;i7I gIt8I7IctId;i7I&(U 7=C thZng tin '* tp tinmth >c

c chOn6 8tring gItJath&(

6 8tring gItPa>I&(

JFileChooser


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JFileChooser


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J4ile'hooserAPP2


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J4ile'hooser'A;'#LD


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"ilename "cget;ame()*

i" (return9alue J4ile'hooserAPP2


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Using JFileChooser


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Using JFileChooser


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Using JFileChooser


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a 4ileob!Ict

a String

Lc Tp Tin Hin Th


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;i7IPa>IvAtInsion;i7tIr&8tring dispc

8tring ]i7tIr(6;i7IPa>IvAtInsion;i7tIr ]i7tIr ^ nI9

;i7IPa>IvAtInsion;i7tIr& w5JG x GF;

F>agIsw w!pgw wgi]w(_ 5;i7IIvAtInsion;i7tIr ]i7tIr(

JTextField


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Text field 7) Z nhp d 7i+ dng '-n bn trn #dng$?t tIAt ]iI7d trng c s c?t Ac Mnh$

JText4iel!(String text)

To >?t tIAt ]iI7d 'i '-n bn c syn$

JText4iel!(String text, int columns)

To >?t tIAt ]iI7d 'i '-n bn c syn ') s c?t Ac Mnh$


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text

horizontalAlignment

e!itable

columns

Cc phng thcJTextField tT t()


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getText()

Tr '* ch+i " t trong tIAt ]iI7d$

setText(String text)

Xt ch+i " t trong tIAt ]iI7d$

set#!itable(boolean e!itable)


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TextArea7) "h+ng cho phzp ng1i s dng nhp ')o

nhi*+ dng '-n bn$


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text

e!itable columns

line>ra

5raSt/le>or! ro5s

line'ount

tabSize

Swing Button Classes


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|

JComponent

AbstractButton

JButton JToggleButton

JCheckBox JRadioButton

JCheckBoxandJRadioButton


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c to ra "hi ng1i dVng chOn cc >c "hc nha+

trn 5


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'oid itI>8tatIv'Int I(U c gOi thi

h)nh "hi ng1i dVng chOn hoXc b} chOn # >c$

V D JCheckBox


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1 // Fi! "#!""$ CheckBoxTe%t!&a'a2 // Creatin Checkbox button%!34 // Ja'a core (ackae%5 im(ort&a'a!a)t!*+6 im(ort&a'a!a)t!e'ent!*+

CheckBoxTe%t!&a'a


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78 // Ja'a exten%ion (ackae%9 im(ort&a'ax!%)in!*+1011(ublic cla%%CheckBoxTe%t extend%JFrame ,12 (ri'ateJTextField -ield+13 (ri'ateJCheckBox bold. italic+1415 // %et u( 0I16 (ublicCheckBoxTe%t1217 ,18 %u(er1 3JCheckBox Te%t32+19

20 // et content (ane and %et it% la4out21 Container container 5 etContent6ane12+22 container!%etLa4out1 ne)Flo)La4out12 2+2324 // %et u( JTextField and %et it% -ont25 -ield 526 ne)JTextField1 37atch the -ont %t4le chane3. #82+27 -ield!%etFont1 ne)Font1 39eri-3. Font!6LAI:. ";2 2+28 container!add1 -ield 2+29

30 // create checkbox ob&ect%31 bold 5 ne)JCheckBox1 3Bold32+32 container!add1 bold 2+3334 italic 5 ne)JCheckBox1 3Italic32+35 container!add1 italic 2+

Line 13

Line 27

Lines 31-35DIc7arI t9o JCheckBoxinstancIs

8It JTextField]ont to8Iri] #~lpoint p7ain

FnstantiatI JCheckBoxs ]or bo7ding andita7iciing JTextFieldtIAt rIspIcti'I7C


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;# %et9ie1 #>. "882+;< %etDi%ible1 true2+;; E;;= // execute a((lication;> (ublic %tatic 'oidmain1 9trin ar%G 2;? ,; CheckBoxTe%t a((lication 5 ne)CheckBoxTe%t12+8" a((lication!%etHe-aultClo%e(eration1# JFrame!KIT:CL92+< E;

// (ri'ate inner cla%% -or ItemLi%tener e'ent handlin= (ri'ate cla%%CheckBox@andler im(lement%ItemLi%tener ,> (ri'ate int'alBold 5 Font!6LAI:+? (ri'ate int 'alItalic 5 Font!6LAI:+=8 // re%(ond to checkbox e'ent%=" (ublic 'oiditem9tateChaned1 Item'ent e'ent 2=# ,=< // (roce%% bold checkbox e'ent%=; i-1 e'ent!etItem12 55 bold 2

=== i-1 e'ent!et9tateChane12 55 Item'ent!9LCTH2=> 'alBold 5 Font!BLH+=? el%e= 'alBold 5 Font!6LAI:+>8

Lines 38-40

Line 61

0hIn +sIr sI7Icts JCheckBoxCheckBox@andler in'o"Is

>Ithod item9tateChane% o] a77rIgistIrId 7istInIrs

71 // (roce%% italic checkbox e'ent%72 i-1 e'ent!et9ource12 55 italic 27374 i-1 e'ent!et9tateChane12 55 Item'ent!9LCTH275 'alItalic 5 Font!ITALIC+76 el%e

CheckBoxTe%t!&a'a


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77 'alItalic 5 Font!6LAI:+7879 // %et text -ield -ont

80 -ield!%etFont181 ne)Font1 39eri-3. 'alBold 'alItalic. ";2 2+82 E8384 E // end (ri'ate inner cla%% CheckBox@andler8586 E // end cla%% CheckBoxTe%t

Lines 80-81


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1 // Fi! "#!"#$ RadioButtonTe%t!&a'a2 // Creatin radio button% u%in Buttonrou( and JRadioButton!34 // Ja'a core (ackae%5 im(ort&a'a!a)t!*+6 im(ort&a'a!a)t!e'ent!*+

RadioButtonTe%t!&a'a

Li 1415


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78 // Ja'a exten%ion (ackae%9 im(ort&a'ax!%)in!*+

1011(ublic cla%%RadioButtonTe%t extend%JFrame ,12 (ri'ateJTextField -ield+13 (ri'ateFont (lainFont. boldFont. italicFont. boldItalicFont+14 (ri'ateJRadioButton (lainButton. boldButton. italicButton.15 boldItalicButton+16 (ri'ateButtonrou( radiorou(+1718 // create 0I and -ont%19 (ublicRadioButtonTe%t12

20 ,21 %u(er1 3RadioButton Te%t32+2223 // et content (ane and %et it% la4out24 Container container 5 etContent6ane12+25 container!%etLa4out1 ne)Flo)La4out12 2+2627 // %et u( JTextField28 -ield 5

29 ne)JTextField1 37atch the -ont %t4le chane3. #2+30 container!add1 -ield 2+3132 // create radio button%33 (lainButton 5 ne)JRadioButton1 36lain3. true2+34 container!add1 (lainButton 2+35

Lines 14-15

Line 16

JRadioButtons nor>a77CappIar as a Buttonrou(

DIc7arI ]o+r JRadioButtoninstancIs

36 boldButton 5 ne)JRadioButton1 3Bold3. -al%e2+37 container!add1 boldButton 2+3839 italicButton 5 ne)JRadioButton1 3Italic3. -al%e2+40 container!add1 italicButton 2+4142 boldItalicButton 5 ne) JRadioButton1

RadioButtonTe%t!&a'a

Lines3644

FnstantiatI JRadioButtons ]or


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42 boldItalicButton 5 ne)JRadioButton143 3Bold/Italic3. -al%e2+44 container!add1 boldItalicButton 2+45

46 // rei%ter e'ent% -or JRadioButton%47 RadioButton@andler handler 5 ne)RadioButton@andler12+48 (lainButton!addItemLi%tener1 handler 2+49 boldButton!addItemLi%tener1 handler 2+50 italicButton!addItemLi%tener1 handler 2+51 boldItalicButton!addItemLi%tener1 handler 2+5253 // create loical relation%hi( bet)een JRadioButton%54 radiorou( 5 ne)Buttonrou(12+

55 radiorou(!add1 (lainButton 2+56 radiorou(!add1 boldButton 2+57 radiorou(!add1 italicButton 2+58 radiorou(!add1 boldItalicButton 2+5960 // create -ont ob&ect%61 (lainFont 5 ne)Font1 39eri-3. Font!6LAI:. ";2+62 boldFont 5 ne)Font1 39eri-3. Font!BLH. ";2+63 italicFont 5 ne)Font139eri-3. Font!ITALIC. ";2+64 boldItalicFont 5

65 ne)Font1 39eri-3. Font!BLH Font!ITALIC. ";2+66 -ield!%etFont1 (lainFont 2+6768 %et9ie1


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78 JFrame!KIT:CL92+79 E8081 // (ri'ate inner cla%% to handle radio button e'ent%82 (ri'ate cla%%RadioButton@andler im(lement%ItemLi%tener ,8384 // handle radio button e'ent%85 (ublic 'oiditem9tateChaned1 Item'ent e'ent 286 ,87 // u%er clicked (lainButton88 i-1 e'ent!etItem12 55 (lainButton 289 -ield!%etFont1 (lainFont 2+90

91 // u%er clicked boldButton92 el%e i-1e'ent!etItem12 55 boldButton 293 -ield!%etFont1 boldFont 2+9495 // u%er clicked italicButton96 el%e i-1e'ent!etItem12 55 italicButton 297 -ield!%etFont1 italicFont 2+9899 // u%er clicked boldItalicButton100 el%e i- 1e'ent!etItem12 55 boldItalicButton 2

101 -ield!%etFont1 boldItalicFont 2+102 E103104 E // end (ri'ate inner cla%% RadioButton@andler105106E // end cla%% RadioButtonTe%t

Lines 85-104

Lines 88-102

0hIn +sIr sI7Icts JRadioButtonRadioButton@andlerin'o"Is

>Ithod item9tateChanedo] a77rIgistIrId 7istInIrs

8It ]ont corrIsponding toJRadioButtonsI7IctId

JComboBox

JC b B


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JComboBox6 DVng R 7it " danh sch cc >c >) ng1i dVng c thR chOn

6


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1 // Fi! "#!"


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78 // Ja'a exten%ion (ackae%9 im(ort&a'ax!%)in!*+1011(ublic cla%%ComboBoxTe%t extend%JFrame ,12 (ri'ateJComboBox imae%ComboBox+13 (ri'ateJLabel label+1415 (ri'ate9trin name%G 516 , 3bu"!i-3. 3bu#!i-3. 3tra'elbu!i-3. 3buanim!i-3E+17 (ri'ateIcon icon%G 5 , ne)ImaeIcon1 name% 8G 2.18 ne)ImaeIcon1 name% "G 2. ne)ImaeIcon1 name% #G 2.19 ne)ImaeIcon1 name%


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1 12 244 label!%etIcon1 icon%45 imae%ComboBox!et9electedIndex12 G 2+46 E

4748 E // end anon4mou% inner cla%%4950 2+ // end call to addItemLi%tener5152 container!add1 imae%ComboBox 2+5354 // %et u( JLabel to di%(la4 ImaeIcon%55 label 5 ne)JLabel1 icon% 8G 2+

56 container!add1 label 2+5758 %et9ie1 Ithod

item9tateChanedo] a77 rIgistIrId 7istInIrs

8It appropriatI IcondIpInding on +sIr sI7Iction

JLi%t

57ist


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57ist6 Danh sch cc >c chOn

6 c

6 Jht sinh List8I7Ictionv'Int "hi ng1i dVng chOn


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1// Fi! "#!";$ Li%tTe%t!&a'a

2 // 9electin color% -rom a JLi%t!34 // Ja'a core (ackae%5 im(ort&a'a!a)t!*+67 // Ja'a exten%ion (ackae%8 i t & i *

Li%tTe%t!&a'a

Line34


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8 im(ort&a'ax!%)in!*+9 im(ort &a'ax!%)in!e'ent!*+10

11(ublic cla%% Li%tTe%t extend%JFrame ,12 (ri'ateJLi%t colorLi%t+13 (ri'ateContainer container+1415 (ri'ate9trin color:ame%G 5 , 3Black3. 3Blue3. 3C4an3.16 3Hark ra43. 3ra43. 3reen3.3Liht ra43. 3Maenta3.17 3rane3. 36ink3. 3Red3. 37hite3. 3Nello)3E+1819 (ri'ateColor color%G 5 , Color!black. Color!blue.20 Color!c4an. Color!darkra4. Color!ra4. Color!reen.21 Color!lihtra4. Color!maenta. Color!orane. Color!(ink.22 Color!red. Color!)hite. Color!4ello)E+2324 // %et u( 0I25 (ublicLi%tTe%t1226 ,27 %u(er1 3Li%t Te%t32+2829 // et content (ane and %et it% la4out

30 container 5 etContent6ane12+31 container!%etLa4out1 ne)Flo)La4out12 2+3233 // create a li%t )ith item% in color:ame% arra434 colorLi%t 5 ne)JLi%t1 color:ame% 2+35 colorLi%t!%etDi%ibleRo)Count1 2+

Line 34

EsI color:ame%arraC topop+7atI JLi%t

3637 // do not allo) multi(le %election%38 colorLi%t!%et9electionMode139 Li%t9electionModel!9I:L9LCTI: 2+4041 // add a J9croll6ane containin JLi%t to content (ane42 container!add1 ne)J9croll6ane1 colorLi%t 2 2+

Li%tTe%t!&a'a

Lines38-39

JLi%ta77o9s sing7I sI7Ictions


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4344 // %et u( e'ent handler45 colorLi%t!addLi%t9electionLi%tener14647 // anon4mou% inner cla%% -or li%t %election e'ent%48 ne)Li%t9electionLi%tener12 ,4950 // handle li%t %election e'ent%51 (ublic 'oid'alueChaned1 Li%t9election'ent e'ent 252 ,53 container!%etBackround154 color% colorLi%t!et9electedIndex12 G 2+

55 E5657 E // end anon4mou% inner cla%%5859 2+ // end call to addLi%t9electionLi%tener6061 %et9ie1 Ithod 'alueChanedo] a77rIgistIrId 7istInIrs

8It appropriatI bac"gro+nddIpInding on +sIr sI7Iction

70 a((lication!%etHe-aultClo%e(eration171 JFrame!KIT:CL92+72 E7374 E // end cla%% Li%tTe%t Li%tTe%t!&a'a


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Multiple-Selection Lists

\+7tip7IlsI7Iction 7ist


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\+7tip7I sI7Iction 7ist6 c trn Jli%t

1 // Fi! "#!"$ Multi(le9election!&a'a2 // Co(4in item% -rom one Li%t to another!34 // Ja'a core (ackae%5 im(ort&a'a!a)t!*+6 im(ort&a'a!a)t!e'ent!*+78 // Ja'a exten%ion (ackae%

Multi(le9election!&'a

Li 29


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8 // Ja'a exten%ion (ackae%9 im(ort&a'ax!%)in!*+10

11(ublic cla%%Multi(le9election extend%JFrame ,12 (ri'ateJLi%t colorLi%t. co(4Li%t+13 (ri'ateJButton co(4Button+1415 (ri'ate9trin color:ame%G 5 , 3Black3. 3Blue3. 3C4an3.16 3Hark ra43. 3ra43. 3reen3. 3Liht ra43.17 3Maenta3. 3rane3. 36ink3. 3Red3. 37hite3. 3Nello)3E+1819 // %et u( 0I20 (ublicMulti(le9election1221 ,22 %u(er1 3Multi(le 9election Li%t%32+2324 // et content (ane and %et it% la4out25 Container container 5 etContent6ane12+26 container!%etLa4out1 ne)Flo)La4out12 2+2728 // %et u( JLi%t colorLi%t29 colorLi%t 5 ne)JLi%t1 color:ame% 2+

30 colorLi%t!%etDi%ibleRo)Count1 2+31 colorLi%t!%etFixedCell@eiht1 "2+32 colorLi%t!%et9electionMode133 Li%t9electionModel!M0LTI6LI:TRDAL9LCTI:2+34 container!add1 ne)J9croll6ane1 colorLi%t 2 2+35

Line 29

Lines 32-33

EsI color:ame%arraC topop+7atI JLi%t

JLi%tcolorLi%ta77o9s>+7tip7I sI7Ictions

36 // create co(4 button and rei%ter it% li%tener37 co(4Button 5 ne)JButton1 3Co(4 OOO3 2+3839 co(4Button!addActionLi%tener14041 // anon4mou% inner cla%% -or button e'ent42 ne)ActionLi%tener12 ,43

Multi(le9election!&'a

Li 4849


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344 // handle button e'ent45 (ublic 'oidaction6er-ormed1 Action'ent e'ent 2

46 ,47 // (lace %elected 'alue% in co(4Li%t48 co(4Li%t!%etLi%tHata149 colorLi%t!et9electedDalue%12 2+50 E5152 E // end anon4mou% inner cla%%5354 2+ // end call to addActionLi%tener5556 container!add1 co(4Button 2+5758 // %et u( JLi%t co(4Li%t59 co(4Li%t 5 ne)JLi%t12+60 co(4Li%t!%etDi%ibleRo)Count1 2+61 co(4Li%t!%etFixedCell7idth1 "882+62 co(4Li%t!%etFixedCell@eiht1 "2+63 co(4Li%t!%et9electionMode164 Li%t9electionModel!9I:LI:TRDAL9LCTI:2+

65 container!add1 ne)J9croll6ane1 co(4Li%t 2 2+6667 %et9ie1


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78 E7980 E // end cla%% Multi(le9election

#Tabbed'ane


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#Table'ane


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#Tabbed'ane


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To m0i Vi tHn" #Tabbed'ane

J8a''e)Pane ta''e)Pane V ne7 J8a''e)Pane*+

G-n th,m Tab m0i vo Vi tHn" #Tabbed'aneta''e)Pane.a))8a'*8a' nameb, icn, cmpnent, 8ltipb+

#Tabbed'ane


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#!plit'ane


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httpUmm!a'a$s+n$co>mdocsmboo"smt+toria7m+is9ingmIAa>p7Ismco>ponIntsm

#!plit'ane


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#!plit'ane #!croll'ane #Cist


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#!plit'ane #!croll'ane #Cist


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Mouse Event Handling

v'Intl7istInIr c:a >o+sI I'Ints


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EMou%eLi%tenerEMou%eMotionLi%tener

Fig. 12.16Mou%eLi%tenerandMou%eMotionLi%tenerinterface methods


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1 // Fi! "#!">$ Mou%eTracker!&a'a

2 // Hemon%tratin mou%e e'ent%!34 // Ja'a core (ackae%5 im(ort&a'a!a)t!*+6 im(ort&a'a!a)t!e'ent!*+78 // Ja'a exten%ion (ackae%9 im(ort&a'ax!%)in!*+

Mou%eTracker!&a'a

Lines 25-26


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( & 10

11(ublic cla%%Mou%eTracker extend%JFrame12 im(lement%Mou%eLi%tener. Mou%eMotionLi%tener ,1314 (ri'ateJLabel %tatu%Bar+1516 // %et u( 0I and rei%ter mou%e e'ent handler%17 (ublicMou%eTracker1218 ,19 %u(er1 3Hemon%tratin Mou%e 'ent%32+20

21 %tatu%Bar 5 ne)JLabel12+22 etContent6ane12!add1 %tatu%Bar. BorderLa4out!90T@2+2324 // a((lication li%ten% to it% o)n mou%e e'ent%25 addMou%eLi%tener1 thi%2+26 addMou%eMotionLi%tener1 thi%2+2728 %et9ie1 #>. "882+29 %etDi%ible1 true2+30

E3132 // Mou%eLi%tener e'ent handler%3334 // handle e'ent )hen mou%e relea%ed immediatel4 a-ter (re%%35 (ublic 'oidmou%eClicked1 Mou%e'ent e'ent 2

Line 35

`IgistIr JFrametorIcIi'I >o+sI I'Ints

Fn'o"Id 9hIn +sIr prIssIsand rI7IasIs >o+sI b+tton

36 ,

37 %tatu%Bar!%etText1 3Clicked at 3 e'ent!etK12 38 3. 3 e'ent!etN12 3G32+39 E4041 // handle e'ent )hen mou%e (re%%ed42 (ublic 'oidmou%e6re%%ed1 Mou%e'ent e'ent 243 ,44 %tatu%Bar!%etText1 36re%%ed at 3 e'ent!etK12

Mou%eTracker!&a'a

Line 42

Fn'o"Id 9hIn +sIrprIssIs >o+sI b+tton


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45 3. 3 e'ent!etN12 3G32+46

E4748 // handle e'ent )hen mou%e relea%ed a-ter drain49 (ublic 'oidmou%eRelea%ed1 Mou%e'ent e'ent 250 ,51 %tatu%Bar!%etText1 3Relea%ed at 3 e'ent!etK12 52 3. 3 e'ent!etN12 3G3 2+53 E5455 // handle e'ent )hen mou%e enter% area

56 (ublic 'oidmou%entered1 Mou%e'ent e'ent 257 ,58 J(tion6ane!%ho)Me%%aeHialo1 null. 3Mou%e in )indo)32+59 E6061 // handle e'ent )hen mou%e exit% area62 (ublic 'oidmou%exited1 Mou%e'ent e'ent 263 ,64 %tatu%Bar!%etText1 3Mou%e out%ide )indo)32+65

E6667 // Mou%eMotionLi%tener e'ent handler%6869 // handle e'ent )hen u%er dra% mou%e )ith button (re%%ed70 (ublic 'oidmou%eHraed1 Mou%e'ent e'ent 2

Line 49

Line 56

Line 62

Line 70

Fn'o"Id 9hIn +sIr rI7IasIs >o+sIb+tton a]tIr dragging >o+sI

Fn'o"Id 9hIn >o+sIc+rsor IntIrs JFrame

Fn'o"Id 9hIn >o+sIc+rsor IAits JFrame

Fn'o"Id 9hIn +sIrdrags >o+sI c+rsor

71 ,72 %tatu%Bar!%etText1 3Hraed at 3 e'ent!etK12 73 3. 3 e'ent!etN12 3G32+74 E7576 // handle e'ent )hen u%er mo'e% mou%e77 (ublic 'oidmou%eMo'ed1 Mou%e'ent e'ent 278 ,79 %tatu%Bar!%etText1 3Mo'ed at 3 e'ent!etK12

Mou%eTracker!&a'a

Line 77

Fn'o"Id 9hIn +sIr>o'Is >o+sI c+rsor


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79 %tatu%Bar!%etText1 Mo'ed at e'ent!etK12 80 3. 3 e'ent!etN12 3G32+

81 E8283 // execute a((lication84 (ublic %tatic 'oidmain1 9trin ar%G 285 ,86 Mou%eTracker a((lication 5 ne)Mou%eTracker12+8788 a((lication!%etHe-aultClo%e(eration189 JFrame!KIT:CL92+90 E9192 E // end cla%% Mou%eTracker

Mou%eTracker!&a'a


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1 // Fi! "#!#8$ Mou%eHetail%!&a'a

2 // Hemon%tratin mou%e click% and3 // di%tinui%hin bet)een mou%e button%!45 // Ja'a core (ackae%6 im(ort&a'a!a)t!*+7 im(ort&a'a!a)t!e'ent!*+89 // Ja'a exten%ion (ackae%10 i t & i *

Mou%eHetail%!&a'a

Line 21


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10 im(ort&a'ax!%)in!*+1112(ublic cla%%Mou%eHetail% extend%JFrame ,13 (ri'ate intx6o%. 46o%+1415 // %et title bar 9trin. rei%ter mou%e li%tener and %ie16 // and %ho) )indo)17 (ublicMou%eHetail%1218 ,19 %u(er1 3Mou%e click% and button%32+20

21 addMou%eLi%tener1 ne)Mou%eClick@andler12 2+2223 %et9ie1


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45

46 // inner cla%% to handle mou%e e'ent%47 (ri'ate cla%%Mou%eClick@andler extend%Mou%eAda(ter ,4849 // handle mou%e click e'ent and determine )hich mou%e50 // button )a% (re%%ed51 (ublic 'oidmou%eClicked1 Mou%e'ent e'ent 252 ,53 x6o% 5 e'ent!etK12+54 46o% 5 e'ent!etN12+5556 9trin title 557 3Clicked 3 e'ent!etClickCount12 3 time1%23+5859 // riht mou%e button60 i-1 e'ent!i%MetaHo)n12 261 title 5 3 )ith riht mou%e button3+6263 // middle mou%e button64 el%e i- 1 e'ent!i%AltHo)n12 2

65 title 53 )ith center mou%e button3+6667 // le-t mou%e button68 el%e69 title 5 3 )ith le-t mou%e button3+

Lines 53-54

Lines 56-57

Lines 60-61

Lines 64-65

Fn'o"I >Ithodmou%eClicked9hIn +sIr c7ic"s >o+sI

8torI >o+sIlc+rsor coordinatIs9hIrI >o+sI 9as c7ic"Id

DItIr>inI n+>bIr o] ti>Is+sIr has c7ic"Id >o+sI

DItIr>inI i] +sIr c7ic"Idright >o+sI b+tton

DItIr>inI i] +sIr c7ic"Id

>idd7I >o+sI b+tton

7071 %etTitle1 title 2+ // %et title bar o- )indo)72 re(aint12+73 E7475 E // end (ri'ate inner cla%% Mou%eClick@andler7677 E // end cla%% Mou%eHetail%

Mou%eHetail%!&a'a


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Keyboard Event Handling

FntIr]acI e4Li%tener6 DVng R A 7 0ey events


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6 DVng R A 7 0ey events

Jht sinh "hi # ph> c nh=n ') th ra$ e4'ent

6

1 // Fi! "#!##$ e4Hemo!&a'a

2 // Hemon%tratin ke4%troke e'ent%!34 // Ja'a core (ackae%5 im(ort&a'a!a)t!*+6 im(ort&a'a!a)t!e'ent!*+78 // Ja'a exten%ion (ackae%9 im(ort&a'ax!%)in!*+10

e4Hemo!&a'a

Line 28

Line35


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1011(ublic cla%% e4Hemo extend%JFrame im(lement%e4Li%tener ,12 (ri'ate9trin line" 5 33. line# 5 33+13 (ri'ate9trin line< 5 33+14 (ri'ateJTextArea textArea+1516 // %et u( 0I17 (ublice4Hemo1218 ,19 %u(er13Hemon%tratin e4%troke 'ent%32+20

21 // %et u( JTextArea22 textArea 5 ne)JTextArea1 "8. "2+23 textArea!%etText1 36re%% an4 ke4 on the ke4board!!!32+24 textArea!%etnabled1 -al%e2+25 etContent6ane12!add1 textArea 2+2627 // allo) -rame to (roce%% e4 e'ent%28 adde4Li%tener1 thi%2+2930 %et9ie1


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45 line" 5 3e4 relea%ed$ 3

46 e'ent!ete4Text1 e'ent!ete4Code12 2+47 %etLine%#and


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79 a((lication!%etHe-aultClo%e(eration1

80 JFrame!KIT:CL92+81 E8283 E // end cla%% e4Hemo

Pluggable Look And Feel

89ing h tr p7+ggab7I 7oo"landl]II7$


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wco>$s+n$!a'a$s9ing$p7a]$>oti]$\oti]Loo"/nd;II7w

60indo9s lwco>$s+n$!a'a$s9ing$p7a]$9indo9s$0indo9sLoo"/nd;II7w

6\Inta7 &5a'a p7at]or>( l

w!a'aA$s9ing$p7a]$>Ita7$\Ita7Loo"/nd;II7w

Thay i Look and Feel EF\anagIr$sItLoo"/nd;II7&8tring c7assPa>I( thro9s

Ens+pportIdLoo"/nd;II7vAcIption


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89ingEti7itiIs$+pdatIponIntTrIIEF&ponInt c(

trC

EF\anagIr$sItLoo"/nd;II7&

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catch& Ens+pportIdLoo"/nd;II7vAcIption I (

Look And Feel Demo


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#ToolEar Icon Ima"eIcon


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5Q+ttonF>agIFcon

#ToolEar Icon Ima"eIcon

=t tltip ch Xcn trAn thanh tl'ar


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p

Graphics Context v Object

Graphics contIAt6 W tr thao tc ' trn >)n hnh


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EVWi tXYn ra(hic%+n 7 graphics contIAt i*+ "hiRn cch '


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dra)Rect1x". 4". )idth. heiht26 Dra9s rIctang7I 9ith +ppIr 7I]t cornIr x". 4"

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clearRect1x". 4". )idth. heiht2

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-ill


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p+b7ic LinIs`IctsH'a7s&( s+pIr& wDra9ing 7inIs rIctang7Is and o'a7sw (_

sIt8iI& ~ #K (_

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6.lập trình gui trong java

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