Tool Class Reference

Base class for tools, which are basically plug-in event handlers that the user selects from the toolbar. More...

#include <tool.h>

Collaboration diagram for Tool:

List of all members.

Signals

void activated ()

Signal from the activate() method.

Public Member Functions

Tool (PDFScene *scn)

virtual void mouseMoveEvent (QGraphicsSceneMouseEvent *ev)=0

virtual void mousePressEvent (QGraphicsSceneMouseEvent *ev)=0

virtual void mouseReleaseEvent (QGraphicsSceneMouseEvent *ev)=0

virtual void mouseLeftClickEvent (QGraphicsSceneMouseEvent *ev)=0

virtual void activate ()=0

Activate this Tool: set it to the current one in the Scene, set an appropriate cursor, emit activated(), etc.

Protected Attributes

PDFScene * scene

The scene to which this tool belongs, as given in the constructor.

Detailed Description

Base class for tools, which are basically plug-in event handlers that the user selects from the toolbar.

A Tool receives events from the Scene and implements the appropriate behavior. At most, one Tool per Scene is active at a time. (If no Tool is active, the default View/Scene behavior occurs when handling mouse events.)

Definition at line 17 of file tool.h.

Constructor & Destructor Documentation

Tool::Tool ( PDFScene * scn )

Definition at line 4 of file tool.cpp.

Member Function Documentation

virtual void Tool::activate ( ) [pure virtual]

Activate this Tool: set it to the current one in the Scene, set an appropriate cursor, emit activated(), etc.

Implemented in BoxTool, and SelectTool.

void Tool::activated ( ) [signal]

Signal from the activate() method.

(Each subclass must emit this signal.)

Referenced by SelectTool::activate().