Classes for canvas display using QT6.

CAUTION! Highly experimental, constantly changing code

Provides alternative graphics implementation in the ROOT. Allows non-GL painting in Qt6 QWidget. Implementes:

painting via TVirtualPadPainter interface
canvas menu
status bar
tools bar
objects context menu
basics graphical editors

To use this class one need to compile ROOT with -Dqt6canvas=ON flag. Qt6 gui library should be installed on the system. To activate Qt6 canvase in ROOT application one should create .rootrc file with following entries:

Gui.Factory: qt6

Root.PadEditor: qt6

Classes
class	QCanvasWidget
	Qt widget which display canvas and provides menu, toolbar and status bar Actual graphics shown in the QPaintWidget. More...

class	QPaintWidget
	Represent area where actual canvas painting is performed. More...

class	QRootContextMenu
	This class provides an interface to context-sensitive popup menus. More...

class	QRootMethodDialog
	Specialized dialog to enter arguments for method exection. More...

class	TQt6Application
	Provides Qt6-specific methods for TApplication. More...

class	TQt6Canvas
	Basic TCanvasImp ABI implementation for Qt6. More...

class	TQt6GedEditor
	TVirtualPadEditor ABI implementation for Qt6. More...

class	TQt6GuiFactory
	This class is a factory for ROOT GUI components. More...

class	TQt6PadPainter
	Implement TVirtualPadPainter for Qt6 graphics. More...