SelectTool Class Reference

Tool for selecting and moving objects and handles. More...

#include <selecttool.h>

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List of all members.

Signals
void	selectionChanged ()
Public Member Functions
	SelectTool (PDFScene *scene)
void	activate ()
	Activate this Tool: set it to the current one in the Scene, set an appropriate cursor, emit activated(), etc.
void	mouseMoveEvent (QGraphicsSceneMouseEvent *ev)
void	mousePressEvent (QGraphicsSceneMouseEvent *ev)
void	mouseReleaseEvent (QGraphicsSceneMouseEvent *ev)
void	mouseLeftClickEvent (QGraphicsSceneMouseEvent *ev)
Private Attributes
QGraphicsRectItem *	rubberBand
Rectangle *	resizing
Rectangle *	dragging
Rectangle::ResizeHandleIdx	resizingHandle

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Detailed Description

Tool for selecting and moving objects and handles.

This Tool provides the following kinds of functionality:

• rubber-band selection
• select individual items
• drag selected item(s)
• drag "handles" to reshape objects

The GraphicsView already provides most of this functionality, so if the "handles" were separate QGraphicsRectItems for example, maybe the SelectTool would not be necessary (just as a Pan tool is not necessary because the view provides that functionality). However, handles are implemented virtually: each object paints its own handles if it is selected. Therefore the SelectTool must query the object for the handle locations.

Definition at line 25 of file selecttool.h.

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Constructor & Destructor Documentation

SelectTool::SelectTool

(

PDFScene *

scene

)

Definition at line 5 of file selecttool.cpp.

References rubberBand.

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Member Function Documentation

void SelectTool::activate

(

)

[virtual]

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

Implements Tool.

Definition at line 19 of file selecttool.cpp.

References Tool::activated(), Tool::scene, and PDFScene::setTool().

Referenced by MainWindow::on_actionSelect_toggled().

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void SelectTool::mouseLeftClickEvent

(

QGraphicsSceneMouseEvent *

ev

)

[virtual]

Implements Tool.

Definition at line 128 of file selecttool.cpp.

References Tool::scene.

void SelectTool::mouseMoveEvent

(

QGraphicsSceneMouseEvent *

ev

)

[virtual]

Implements Tool.

Definition at line 74 of file selecttool.cpp.

References Rectangle::buttonDownPos(), dragging, Rectangle::resize(), resizing, resizingHandle, rubberBand, and Tool::scene.

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void SelectTool::mousePressEvent

(

QGraphicsSceneMouseEvent *

ev

)

[virtual]

Todo:

We need an intermediate class for such items, but for now there is only Rectangle.

Implements Tool.

Definition at line 30 of file selecttool.cpp.

References dragging, Rectangle::handleAt(), resizing, resizingHandle, Rectangle::RH_NONE, rubberBand, and Tool::scene.

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void SelectTool::mouseReleaseEvent

(

QGraphicsSceneMouseEvent *

ev

)

[virtual]

Implements Tool.

Definition at line 102 of file selecttool.cpp.

References dragging, Rectangle::resizeDone(), resizing, rubberBand, Tool::scene, and selectionChanged().

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void SelectTool::selectionChanged

(

)

[signal]

Referenced by mouseReleaseEvent().

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Member Data Documentation

Rectangle* SelectTool::dragging [private]

Definition at line 42 of file selecttool.h.

Referenced by mouseMoveEvent(), mousePressEvent(), and mouseReleaseEvent().

Rectangle* SelectTool::resizing [private]

Definition at line 41 of file selecttool.h.

Referenced by mouseMoveEvent(), mousePressEvent(), and mouseReleaseEvent().

Rectangle::ResizeHandleIdx SelectTool::resizingHandle [private]

Definition at line 44 of file selecttool.h.

Referenced by mouseMoveEvent(), and mousePressEvent().

QGraphicsRectItem* SelectTool::rubberBand [private]

Definition at line 40 of file selecttool.h.

Referenced by mouseMoveEvent(), mousePressEvent(), mouseReleaseEvent(), and SelectTool().

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

• selecttool.h (40)
• selecttool.cpp (40)