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230

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Qt 5.3. , , , . Qt Creator Qt Quick. Qt 5, , -. .

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05.03.15. 701001/16. . . . . 74,82.

1500 . "-", 191036, -, ., 20.

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ISBN 978-5-9775-3346-1 2015 , "-", 2015

20

22

23 23

32

I. QT 43

1. Qt 45 Qt 45 Qt 46

Qt 48 QtCore 48 QtGui 49 QtWidgets 49 QtQuick QtQML 50 QtNetwork 51 QtXml QtXmlPatterns 51 QtSql 51 QtOpenGL 51 QtWebK.it QtWebKitWidgets 51 QtMultimedia QtMultimediaWidgets 51 QtScript QtScriptTools 51 QtSvg 52

52

2. 53 55

58 60 61

4

66 67

68 70 71

3. Qt 72 72Qt Assistant 72 qmake 72 Qt 76 77 RCC 78 Qt- 79 79

GDB (GNU Debugger) 80 83

Qt 86 Qt 87 89

4. 90 91 92

Java 93 STL 94 foreach 96

96 QVector 97

QByteArray 98 QBitArray 99

QList QLinkedList 99 QStack 101 QQueue 101

102 QMap QMultiMap 103 QHash QMultiHash 104 QSet 105

107 108 109 109 109

110 111

QVariant 113 114 115

5

II. 117

5. ? 119 QWidget 119

122 123 123 124

127 127 128 130

6. 131 (layout managers) 131

133 QBoxLayout 133 QHBoxLayout 135 QVBoxLayout 136

137 QGridLayout 138

144 QSplitter 144 145

7. 146 146 150 153 155

8. , 156 ? QAbstractButton 156

156 156 157

157 160 161 162 165

9. 166 QAbstractSlider 166

166 166 167 167

6

167 169 170 172

10. 173 173 175

178 (syntax highlighting) 178

? 184 185 186

187 188

11. 189 189

189 191 191 191 192

193 196

196 198 199 200 201

12. , - 202 203

203 205 206 208

210 210 214 215 (Proxy model) 222 - 224 226

13. 227 230

7

III. 231

14. 233 235

235 QKeyEvent 235 QFocusEvent 238

. QPaintEvent 238 239

QMouseEvent 239 QWheelEvent 243 enterEvent() leaveEvent() 243

. QTimerEvent 243 (drag & drop) 244

QDragEnterEvent 244 QDragLeaveEvent 244 QDragMoveEvent 244 QDropEvent 244

244 QChildEvent 244 QCloseEvent 244 QHideEvent 245 QMoveEvent 245 QShowEvent 245 QResizeEvent 245

246 event() 247 250 251

15. 252 252 255

16. 256 259

IV. 261

17. 263 263

263 264 266 266 267

267 QColor 267 RGB 268

8

HSV 269 CMYK 270 271 272

273

18. 274 QPainter 275 277

277 278

279 (Anti-aliasing) 280 281

281 282 283 283

286 286

287 288 288 288 288

(painter path) 289 290 (composition mode) 291 294 296

19. 297 297

BMP 297 GIF 298 PNG 298 JPEG 298 298

- 300 Qlmage 300 Qlmage 307

- 308 QPixmap 308 QPixmapCache 310 QBitmap 310 QPixmap 310 311

314

9

20. 316 318 321

21. 322 324 324 325 327 333 335

22. 336 QMovie 336SVG- 338 339

342 346

349

23. OpenGL 350 OpenGL 350 Qt OpenGL 352 OpenGL- 352 OpenGL- 355 OpenGL 356 359 363

24. 364 QPrinter 364 369

25. 370 370 375

26. 376 378 382 383

383 384 384

QStyle 388 388

389 390 391 392

396

10

27. 397 397

WAV-: QSound 398 : QMediaPlayer 399 QMediaPlayer 406

408

V. 409

28. 411 418 420

29. 421 421 422

drag 424 drop 426 428

433

30. 435 435 lupdate 437 Qt Linguist 438 lrelease. , 439 441 443 444

31. 445 445 449 450 451

32. 452 452 QDialog 453

453 454 454

458 458 460 461 462 463

11

464 465

466 468 469 469 470 About Qt 470 471

471

33. 473 473 475 (Online Help) 476 478

34. , SDI- MDT- 480 QMainWindow 480 QAction 481 482 484 485 487SDI- MDI- 489

SDI- 489MDI- 493

501

35. (Desktop) 502 502 507 511 511

VI. QT 513

36. , / 515/. QlODevice 515

. QFile 517 QBuffer 518 QTemporaryF 519

. QDir 519 520

. QFilelnfo 523 ? 523 524 524 524 524

12

525 / 527

QTextStream 527 QDataStream 529

529

37. , 531 531

QDate 531 QTime 533 QDateTime 534

534 535 QTimer 537 QBasicTimer 539

539

38. 540 540 543

545 545

- 546 551

554 554 556 556 557

QtConcurrent 557 559

39. 561 561

- 562 - 563 - 568

UDP- UDP- 572 576 583 585 586

40. XML 587 XML- 587XML Qt 589 DOM 589

XML- 590 XML- 592

13

SAX 594 XML- 594

QXmlStreamReader XML 597 XQuery 599 602

41. 603 SQL 603

604 604 604 605 605

SQL Qt 605 ( ) 607 SQL ( ) 608 SQL- ( ) 611

612 613 615

616

42. 617 617

618 (plug-ins) 621

Qt 621 623

627 629

43. Qt API 630 Windows API 632 Linux 635 Mac OS X 635 639 641

44. Qt Designer. 642 Qt Designer 642 645 (layout) 646 647 648 650 650 652 653 655

14

45. 657 658

661 663 664 665

46. WebKit 666 667 ? 668 668 Web- 670

670 670 671 Web-, 671

676

47. Qt Creator 677 678 Hello Qt Creator 679 Qt Creator 684

685 685 685

688 ? 688 688 689 689 694

694 694 694 695, 695 696

696 697 698 699 699 699

Step Over 700 Step Into 701 Step Out 701

701 (Local and Watches) 702 (Call Stack) 703

703

15

48. Qt 4 Qt 5 705 Qt 5 Qt 4 705 Qt 5 705

706 706 qFindChildren() 707 707WebKit 707 707 Plug-ins 707 QPrinter 708 708 708

Qt 5 Qt 4 708 711

VII. QT SCRIPT 713

49. 715 716 719, 720 721

50. 723 723 724 724

725 725 725 726 726

726 728 728

728 728 729 730 731

732 732

if... else 732 switch 733

733 734

break continue 734

16

for 734 while 734 do...while 735

with 735 735

try...catch 736 throw 736

737 738

739 741 742 744 744

745

51. Qt Script 746 Global 746 Number 746 Boolean 746 String 747

747 747 747 747

RegExp 747 748 748

Array 748 749 749 749 750 750 750 750

Date 751 Math 752

752 753 753 753 753 754 754 754

Function 755 755

17

52. Qt Script 756 QScriptValue 756 QScriptContext 756 QScriptEngine 757 759

760, 767

Qt Script 770 773

VIII. QT QUICK 775

53. Qt Quick 777 ? 777 QML 779 779 JavaScript QML 783 784

54. 786 786 788

790 792 794 797 799

55. 800 800 807 811

56. 812 812 813

Image 813 Borderlmage 816

817 818 819 821

57. 822 822 825 829

830 832

834

18

58. 835 835

837 838 839

840 842 845

845 848

851

59. / 852 852

852XML- 853

855 Flickable 855 ListView 856 GridView 858 PathView 860

863

60. Qt Quick C++ 864 QML C++ 864 C++ QML 865 877

878

879

1. ASCII 881

2. 884

3. 887

4. 891

901

,

,

(Goes)

.

Let's start with a fictional story. Imagine ten years ago, someone came to me and asked: Is itpossible to write a feature-rich graphical application, and then compile and run this applicationnatively on all different major operating systems? On Linux, on UNIX, on Windows, and on theMacintosh? Back then as a young computer scientist I would probably have answered,No, that's not possible. And if it was, the system would be very difficult to use, and limited by theweakest platform. Better choose one platform, or write your code several times.A few years later I discovered Qt and how wrong I was!Qt makes true cross-platform programming a reality, without limiting your choices and creativity.It gives users what users want: fast, native applications that look and feel just right. It givesdevelopers what developers want: a framework that lets us write less code, and create more.A framework that makes programming fun again, no matter whether we do commercial work orcontribute to Open Source projects.Too good to be true? You don't believe me? Well, the proof is easy. I'll pass the word on to Max,who will tell you exactly how it's done. Max, your turn.Before I leave, let me wish you good luck with your first Qt-steps. But be careful, it may very wellturn into a lifetime addiction. Either way, I hope you will have as much fun using Qt as we havecreating it for you.

Matthias EttrichOctober 1st, 2004, Oslo

. , 10 - : , ? Linux, UNIX, Windows, Macintosh? , , , : , . , . . Qt