wwCanvasView Class Reference

QCanvasView with scaling and item dragging support. More...

List of all members.

Public Slots
virtual void	Double ()
	Doubles the scale of the canvas.
virtual void	Halve ()
	Halves the scale of the canvas.
Signals
void	clicked (QCanvasItem *)
	Signal is emitted when an item is clicked.
void	dragged (QCanvasItem *, const QPoint &pt)
	Signal is emitted when an item is dragged.
Public Member Functions
virtual void	addAction (QAction *a)
	Adds action to the list of actions displayed as the context menu.
virtual void	removeAction (QAction *a)
	Removes an action from the list of actions displayed as the context menu.
virtual void	setDragsEnabled (bool yes)
	Enables or disables dragging of objects.
virtual void	setScale (double sx, double sy=0)
	Sets the scale of both X and Y axis.
virtual void	setScaleX (const double sx)
	Scales the canvas in X direction.
virtual void	setScaleY (const double sy)
	Scales the canvas in Y direction.
Properties
bool	dragsEnabled
	Returns information if dragging is enabled.
double	scaleX
	Returns the scale of X axis.
double	scaleY
	Returns the scale of Y axis.

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Detailed Description

Author:

Witold Wysota

This class provides possibility to click and drag items contained and scale the canvas.

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Member Function Documentation

void wwCanvasView::addAction (  QAction *  a  )  [virtual]

Parameters: a  action to add

void wwCanvasView::removeAction (  QAction *  a  )  [virtual]

Parameters: a  action to remove

void wwCanvasView::setDragsEnabled (  bool  yes  )  [virtual]

Parameters: yes  boolean value stating whether dragging should be enabled

void wwCanvasView::setScale (  double  sx, double  sy = 0 )  [virtual]

Parameters: sx  scale factor for X axis sy  scale factor for Y axis

void wwCanvasView::setScaleX (  const double  sx  )  [virtual]

Parameters: sx  scale factor

void wwCanvasView::setScaleY (  const double  sy  )  [virtual]

Parameters: sy  scale factor

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Property Documentation

bool wwCanvasView::dragsEnabled [read, write]

Returns: true if dragging is enabled, false otherwise

double wwCanvasView::scaleX [read, write]

Returns: scale of X axis

double wwCanvasView::scaleY [read, write]

Returns: scale of Y axis

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The documentation for this class was generated from the following files:

• wwcanvasview.h
• wwcanvasview.cpp

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