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/* $Id$ */
/** @file
* VBox Qt GUI - UIChooserHandlerMouse class implementation.
*/
/*
* Copyright (C) 2012-2022 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
/* Qt includes: */
#include <QGraphicsSceneMouseEvent>
/* GUI incluedes: */
#include "UIChooserHandlerMouse.h"
#include "UIChooserModel.h"
#include "UIChooserItemGroup.h"
#include "UIChooserItemGlobal.h"
#include "UIChooserItemMachine.h"
UIChooserHandlerMouse::UIChooserHandlerMouse(UIChooserModel *pParent)
: QObject(pParent)
, m_pModel(pParent)
{
}
bool UIChooserHandlerMouse::handle(QGraphicsSceneMouseEvent *pEvent, UIMouseEventType type) const
{
/* Process passed event: */
switch (type)
{
case UIMouseEventType_Press: return handleMousePress(pEvent);
case UIMouseEventType_Release: return handleMouseRelease(pEvent);
case UIMouseEventType_DoubleClick: return handleMouseDoubleClick(pEvent);
}
/* Pass event if unknown: */
return false;
}
UIChooserModel* UIChooserHandlerMouse::model() const
{
return m_pModel;
}
bool UIChooserHandlerMouse::handleMousePress(QGraphicsSceneMouseEvent *pEvent) const
{
/* Get item under mouse cursor: */
QPointF scenePos = pEvent->scenePos();
if (QGraphicsItem *pItemUnderMouse = model()->itemAt(scenePos))
{
/* Which button it was? */
switch (pEvent->button())
{
/* Left one? */
case Qt::LeftButton:
{
/* Which item we just clicked? */
UIChooserItem *pClickedItem = 0;
/* Was that a group item? */
if (UIChooserItemGroup *pGroupItem = qgraphicsitem_cast<UIChooserItemGroup*>(pItemUnderMouse))
pClickedItem = pGroupItem;
/* Or a global one? */
else if (UIChooserItemGlobal *pGlobalItem = qgraphicsitem_cast<UIChooserItemGlobal*>(pItemUnderMouse))
{
const QPoint itemCursorPos = pGlobalItem->mapFromScene(scenePos).toPoint();
if ( pGlobalItem->isToolButtonArea(itemCursorPos)
&& ( model()->firstSelectedItem() == pGlobalItem
|| pGlobalItem->isHovered()))
{
model()->handleToolButtonClick(pGlobalItem);
if (model()->firstSelectedItem() != pGlobalItem)
pClickedItem = pGlobalItem;
}
else
if ( pGlobalItem->isPinButtonArea(itemCursorPos)
&& ( model()->firstSelectedItem() == pGlobalItem
|| pGlobalItem->isHovered()))
model()->handlePinButtonClick(pGlobalItem);
else
pClickedItem = pGlobalItem;
}
/* Or a machine one? */
else if (UIChooserItemMachine *pMachineItem = qgraphicsitem_cast<UIChooserItemMachine*>(pItemUnderMouse))
{
const QPoint itemCursorPos = pMachineItem->mapFromScene(scenePos).toPoint();
if ( pMachineItem->isToolButtonArea(itemCursorPos)
&& ( model()->firstSelectedItem() == pMachineItem
|| pMachineItem->isHovered()))
{
model()->handleToolButtonClick(pMachineItem);
if (model()->firstSelectedItem() != pMachineItem)
pClickedItem = pMachineItem;
}
else
pClickedItem = pMachineItem;
}
/* If we had clicked one of required item types: */
if (pClickedItem && !pClickedItem->isRoot())
{
/* Was 'shift' modifier pressed? */
if (pEvent->modifiers() == Qt::ShiftModifier)
{
/* Calculate positions: */
UIChooserItem *pFirstItem = model()->firstSelectedItem();
int iFirstPosition = model()->navigationItems().indexOf(pFirstItem);
int iClickedPosition = model()->navigationItems().indexOf(pClickedItem);
/* Populate list of items from 'first' to 'clicked': */
QList<UIChooserItem*> items;
if (iFirstPosition <= iClickedPosition)
for (int i = iFirstPosition; i <= iClickedPosition; ++i)
items << model()->navigationItems().at(i);
else
for (int i = iFirstPosition; i >= iClickedPosition; --i)
items << model()->navigationItems().at(i);
/* Make that list selected: */
model()->setSelectedItems(items);
/* Make clicked item current one: */
model()->setCurrentItem(pClickedItem);
}
/* Was 'control' modifier pressed? */
else if (pEvent->modifiers() == Qt::ControlModifier)
{
/* Invert selection state for clicked item: */
if (model()->selectedItems().contains(pClickedItem))
model()->removeFromSelectedItems(pClickedItem);
else
model()->addToSelectedItems(pClickedItem);
/* Make clicked item current one: */
model()->setCurrentItem(pClickedItem);
}
/* Was no modifiers pressed? */
else if (pEvent->modifiers() == Qt::NoModifier)
{
/* Make clicked item the only selected one: */
model()->setSelectedItem(pClickedItem);
}
}
break;
}
/* Right one? */
case Qt::RightButton:
{
/* Which item we just clicked? */
UIChooserItem *pClickedItem = 0;
/* Was that a group item? */
if (UIChooserItemGroup *pGroupItem = qgraphicsitem_cast<UIChooserItemGroup*>(pItemUnderMouse))
pClickedItem = pGroupItem;
/* Or a global one? */
else if (UIChooserItemGlobal *pGlobalItem = qgraphicsitem_cast<UIChooserItemGlobal*>(pItemUnderMouse))
pClickedItem = pGlobalItem;
/* Or a machine one? */
else if (UIChooserItemMachine *pMachineItem = qgraphicsitem_cast<UIChooserItemMachine*>(pItemUnderMouse))
pClickedItem = pMachineItem;
/* If we had clicked one of required item types: */
if (pClickedItem && !pClickedItem->isRoot())
{
/* Select clicked item if not selected yet: */
if (!model()->selectedItems().contains(pClickedItem))
model()->setSelectedItem(pClickedItem);
}
break;
}
default:
break;
}
}
/* Pass all other events: */
return false;
}
bool UIChooserHandlerMouse::handleMouseRelease(QGraphicsSceneMouseEvent*) const
{
/* Pass all events: */
return false;
}
bool UIChooserHandlerMouse::handleMouseDoubleClick(QGraphicsSceneMouseEvent *pEvent) const
{
/* Get item under mouse cursor: */
QPointF scenePos = pEvent->scenePos();
if (QGraphicsItem *pItemUnderMouse = model()->itemAt(scenePos))
{
/* Which button it was? */
switch (pEvent->button())
{
/* Left one? */
case Qt::LeftButton:
{
/* Was that a group item? */
if (UIChooserItemGroup *pGroupItem = qgraphicsitem_cast<UIChooserItemGroup*>(pItemUnderMouse))
{
/* If it was not root: */
if (!pGroupItem->isRoot())
{
/* Toggle it: */
if (pGroupItem->isClosed())
pGroupItem->open();
else if (pGroupItem->isOpened())
pGroupItem->close();
}
/* Filter that event out: */
return true;
}
/* Or a machine one? */
else if (pItemUnderMouse->type() == UIChooserNodeType_Machine)
{
/* Start or show selected items: */
model()->startOrShowSelectedItems();
}
break;
}
default:
break;
}
}
/* Pass all other events: */
return false;
}
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