3u Tool

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NAME
SYNOPSIS
DESCRIPTION
PUBLIC OPERATIONS
PROTECTED OPERATIONS
SEE ALSO

NAME

Tool - base class for tool objects

SYNOPSIS

#include <Unidraw/Tools/tool.h>

DESCRIPTION

Tool is an abstract base class for objects that support directmanipulation of components. Tools employ animation and other visualeffects for immediate feedback to reinforce the user's perception thathe is dealing with real objects. The user grasps and

wields

a tool to achieve a desired effect. The effect mayinvolve a change to one or more components' internal state, or it maychange the way components are viewed, or there may be no effect at all(if for example the tool is used in an inapropriate context).

Conceptually, tools do their work within viewers, in which graphicalcomponent views are displayed and manipulated. Whenever a viewerreceives an input event (such as a mouse click or key press), it inturn asks the current tool (defined by the enclosing editor object) toproduce a manipulator object. A tool implements its CreateManipulatoroperation to create and initialize an appropriate manipulator, whichencapsulates the tool's manipulation semantics by defining the threephases (grasp, wield, effect) of the manipulation. Moreover, a toolcan delegate manipulator creation to one or more of the GraphicViewobjects in the viewer to allow component-specific interaction. Atool's InterpretManipulator operation accesses and analyzesinformation in the manipulator that characterizes the manipulation andthen creates a command that carries out the desired effect. If a tooldelegated manipulator creation to a graphical view, then it mustdelegate its interpretation to the same view.

PUBLIC OPERATIONS

virtual Manipulator* CreateManipulator(

Viewer*, Event&, Transformer*

)

virtual void InterpretManipulator(Manipulator*)

Operations that define how the tool reacts when it is used and itsultimate effect. The tool can defer manipulator creation andinterpretation to a GraphicView. This allows the same tool to behavedifferently depending on the component it manipulates.

CreateManipulator creates a manipulator that is appropriate for thetool. It receives the viewer in which the manipulation willtake place, an event with which to initialize the manipulator ifnecessary, and the coordinate transformation that maps canvascoordinates into the subject's coordinate space. InterpretManipulatoris called following manipulation and defines how to construct acommand that carries out the manipulation's desired effect.

virtual void SetControlInfo(ControlInfo*)

virtual ControlInfo* GetControlInfo()

Tools use a ControlInfo object to store information from which tobuild a user interface for engaging the tool. These operations setand get the ControlInfo object. SetControlInfo does not deletethe ControlInfo being replaced.

virtual Component* Copy()

Return a copy of the tool. Subclasses should redefine thisoperation to return an instance of their type.

virtual void Read(istream&)

virtual void Write(ostream&)

Read and write the tool's contents to a stream to support catalogoperations. Read and write typically call first the correspondingoperations defined by their parent class, and then they read or writetheir class-specific state. Note that you must ensure that theobjects are read in the same order they are written.

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virtual ClassId GetClassId()

virtual boolean IsA(ClassId)

GetClassId returns the unique class identifier for the Toolsubclass, while IsA returns whether the instance is of a class orsubclass corresponding to the given identifier. IsA typically checksthe given identifier against the instance's own (as defined by itsGetClassId operation) and, failing that, calls its parent classes' IsAoperation. All subclasses must redefine GetClassId and IsA to ensurethat their identifiers are unique and that instances are written andread properly.

Pos.	Part No	Qty	Parts name
00.	6026309	[1]	BOX;TOOL
02.	8113134	[1]	COVER
03.	9771231	[1]	BRACKET
05.	4683032	[1]	GUIDE
06.	4307285	[2]	CLIP
07.	4702365	[2]	RUBBER
08.	4702366	[1]	CATCH
09.	J260816	[8]	BOLT;SEMS
09A.	J900816	[1]	BOLT
09B.	A590108	[1]	WASHER;PLANE
10.	J271025	[2]	BOLT;SEMS
10A.	J901025	[1]	BOLT
10B.	J222010	[1]	WASHER
11.	J650408	[2]	SCREW
13.	M430616	[2]	SCREW
14.	A590106	[2]	WASHER;PLANE
15.	J650408	[2]	SCREW
17.	4431011	[1]	CUSHION

3u Tool

Contents

NAME

SYNOPSIS

DESCRIPTION

PUBLIC OPERATIONS

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PROTECTED OPERATIONS

SEE ALSO

3utools Download For Windows