CustomItemDelegate Class Reference

A custom delegate for rendering items in views. More...

#include <CustomItemDelegate.h>

Inheritance diagram for CustomItemDelegate:

Collaboration diagram for CustomItemDelegate:

Public Slots
void	animationValueChanged (double value)
	Animates the value change for the animation. More...
void	animationFinished ()
	Slot called when the animation has finished.
void	stopAnimation ()
	Stops the currently running animation.
void	startAnimation (const QModelIndex &index)
	Starts an animation for the specified index. More...
bool	isAnimationRunning () const
	Checks if an animation is currently running. More...
QWidget *	createEditor (QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const override
	Creates and returns a custom editor widget. More...
void	setModelData (QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const override
	Sets the model data based on the edited data in the editor. More...

Signals
void	fileDropped (const QString &filePath, const QPoint &iconPosition)
	Signal emitted when a file is dropped onto the delegate item. More...

Public Member Functions
	CustomItemDelegate (QObject *parent=nullptr, QAbstractProxyModel *fileSystemModel=nullptr)
	Constructs a CustomItemDelegate object. More...
void	paint (QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override
	Renders the item's appearance using a QPainter. More...
void	setSelectionModel (QItemSelectionModel *selectionModel)
	Installs event filters on the specified view to intercept events. More...
QSize	sizeHint (const QStyleOptionViewItem &option, const QModelIndex &index) const override
	Overrides the sizeHint method to set the size of the delegate items. More...

Protected Member Functions
bool	editorEvent (QEvent *event, QAbstractItemModel *model, const QStyleOptionViewItem &option, const QModelIndex &index) override

Detailed Description

A custom delegate for rendering items in views.

The CustomItemDelegate class provides a custom delegate for rendering items in views, such as QTreeView or QListView. It extends QStyledItemDelegate and adds custom behavior like animations, context menus, and drag-and-drop handling.

Constructor & Destructor Documentation

CustomItemDelegate()

CustomItemDelegate::CustomItemDelegate ( QObject *  parent = nullptr, QAbstractProxyModel *  fileSystemModel = nullptr  )

explicit

Constructs a CustomItemDelegate object.

Parameters

parent	The parent QObject.
fileSystemModel	A pointer to the CustomFileSystemModel.

Member Function Documentation

animationValueChanged

void CustomItemDelegate::animationValueChanged ( double  value )

slot

Animates the value change for the animation.

Parameters

value

The new animation value.

createEditor

QWidget * CustomItemDelegate::createEditor ( QWidget *  parent, const QStyleOptionViewItem &  option, const QModelIndex &  index  ) const

overrideslot

Creates and returns a custom editor widget.

Parameters

parent	The parent widget of the editor.
option	Style options for the item.
index	Model index of the item being edited.

Returns

A pointer to the custom editor widget.

fileDropped

void CustomItemDelegate::fileDropped ( const QString &  filePath, const QPoint &  iconPosition  )

signal

Signal emitted when a file is dropped onto the delegate item.

Parameters

filePath	The path of the dropped file.
iconPosition	The position of the icon.

isAnimationRunning

bool CustomItemDelegate::isAnimationRunning ( ) const

slot

Checks if an animation is currently running.

Returns

True if an animation is running, otherwise false.

paint()

void CustomItemDelegate::paint ( QPainter *  painter, const QStyleOptionViewItem &  option, const QModelIndex &  index  ) const

override

Renders the item's appearance using a QPainter.

Parameters

painter	The QPainter object to paint with.
option	The style options for rendering.
index	The model index to be rendered.

setModelData

void CustomItemDelegate::setModelData ( QWidget *  editor, QAbstractItemModel *  model, const QModelIndex &  index  ) const

overrideslot

Sets the model data based on the edited data in the editor.

Parameters

editor	The editor widget.
model	The model that holds the item data.
index	Model index of the item being edited.

setSelectionModel()

void CustomItemDelegate::setSelectionModel

(

QItemSelectionModel *

selectionModel

)

Installs event filters on the specified view to intercept events.

Parameters

view	The view on which to install the event filters.

Overrides the event filter to handle events for the delegate.

Parameters

object	The QObject that sent the event.
event	The event to be filtered.

Returns

True if the event was handled, otherwise false.

Sets the selection model for the delegate.

Parameters

selectionModel

The QItemSelectionModel to use for selection.

sizeHint()

QSize CustomItemDelegate::sizeHint ( const QStyleOptionViewItem &  option, const QModelIndex &  index  ) const

inlineoverride

Overrides the sizeHint method to set the size of the delegate items.

Parameters

option	The style options for the item.
index	The index of the item.

Returns

The preferred size of the item.

startAnimation

void CustomItemDelegate::startAnimation ( const QModelIndex &  index )

slot

Starts an animation for the specified index.

Parameters

index

The index of the item to animate.

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

• CustomItemDelegate.h
• CustomItemDelegate.cpp