book

C++ GUI Programming with Qt 4

by Jasmin Blanchette, Mark Summerfield

June 2006

Intermediate to advanced

560 pages

12h 14m

English

Pearson

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Hello QtMaking ConnectionsLaying Out WidgetsUsing the Reference Documentation
Subclassing QDialogSignals and Slots in DepthRapid Dialog DesignShape-Changing DialogsDynamic DialogsBuilt-in Widget and Dialog Classes
Subclassing QMainWindowCreating Menus and ToolbarsSetting Up the Status BarImplementing the File MenuUsing DialogsStoring SettingsMultiple DocumentsSplash Screens
The Central WidgetSubclassing QTableWidgetLoading and SavingImplementing the Edit MenuImplementing the Other MenusSubclassing QTableWidgetItem

Customizing Qt WidgetsSubclassing QWidgetIntegrating Custom Widgets with Qt DesignerDouble Buffering
Laying Out Widgets on a FormStacked LayoutsSplittersScrolling AreasDock Widgets and ToolbarsMultiple Document Interface
Reimplementing Event HandlersInstalling Event FiltersStaying Responsive During Intensive Processing
Painting with QPainterPainter TransformationsHigh-Quality Rendering with QImagePrintingGraphics with OpenGL
Enabling Drag and DropSupporting Custom Drag TypesClipboard Handling
Using the Item View Convenience ClassesUsing Predefined ModelsImplementing Custom ModelsImplementing Custom Delegates
Sequential ContainersAssociative ContainersGeneric AlgorithmsStrings, Byte Arrays, and Variants
Reading and Writing Binary DataReading and Writing TextTraversing DirectoriesEmbedding ResourcesInter-Process Communication
Connecting and QueryingPresenting Data in Tabular FormImplementing Master–Detail Forms
Writing FTP ClientsWriting HTTP ClientsWriting TCP Client–Server ApplicationsSending and Receiving UDP Datagrams
Reading XML with SAXReading XML with DOMWriting XML
Tooltips, Status Tips, and “What’s This?” HelpUsing QTextBrowser as a Simple Help EngineUsing Qt Assistant for Powerful Online Help
Working with UnicodeMaking Applications Translation-AwareDynamic Language SwitchingTranslating Applications
Creating ThreadsSynchronizing ThreadsCommunicating with the Main ThreadUsing Qt’s Classes in Secondary Threads
Extending Qt with PluginsMaking Applications Plugin-AwareWriting Application Plugins
Interfacing with Native APIsUsing ActiveX on WindowsHandling X11 Session Management
Getting Started with QtopiaCustomizing Qtopia Core
A Note on LicensingInstalling Qt/WindowsInstalling Qt/MacInstalling Qt/X11
Getting Started with C++Main Language DifferencesPrimitive Data TypesClass DefinitionsPointersReferencesArraysCharacter StringsEnumerationsTypedefsType ConversionsOperator OverloadingValue TypesGlobal Variables and FunctionsNamespacesThe PreprocessorThe Standard C++ Library

Content preview from C++ GUI Programming with Qt 4

Chapter 8. 2D and 3D Graphics

Qt’s 2D graphics engine is based on the QPainter class. QPainter can draw geometric shapes (points, lines, rectangles, ellipses, arcs, chords, pie segments, polygons, and Bézier curves), as well as pixmaps, images, and text. Furthermore, QPainter supports advanced features such as antialiasing (for text and shape edges), alpha blending, gradient filling, and vector paths. QPainter also supports transformations, which makes it possible to draw resolution-independent 2D graphics.

QPainter can be used to draw on a ...