1 /*

     2 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *

    16 */

    17 

    18 

    19 #include "WebChromeContainerSnippet.h"

    20 #include "WebChromeItem.h"

    21 #include "ChromeWidget.h"

    22 #include "ChromeRenderer.h"

    23 #include "ChromeSnippet.h"

    24 

    25 #include <QDebug>

    26 

    27 namespace GVA {

    28 

    29   WebChromeContainerSnippet::WebChromeContainerSnippet(const QString & elementId, ChromeWidget * chrome, const QRectF& ownerArea, const QWebElement & element, QGraphicsWidget* gwidget)

    30     : ChromeSnippet(elementId, chrome, gwidget, element),

    31       m_ownerArea(ownerArea),

    32       m_layoutHeight(0)

    33   {

    34     QGraphicsWidget * item = static_cast<QGraphicsWidget*> (widget());

    35     //NB: maybe size should be fixed only in one direction?

    36     item->setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed)); 

    37     //NB: add a method for setting owner area

    38     //item->setPreferredSize(m_ownerArea.width(), m_ownerArea.height());

    39     //Also resize in case item is not part of anchor layout

    40     //item->resize(item->preferredSize());

    41  

    42    //NB: Linear layout efaults to horizontal: handle vertical layouts too.   

    43     m_layout = new QGraphicsLinearLayout();

    44     m_layout->setContentsMargins(0,0,0,0);

    45     m_layout->setSpacing(0);

    46     

    47     //Add a stretch element at the beginning.

    48     m_layout->addStretch();

    49     item->setLayout(m_layout);

    50     //When chrome is resized owner areas for snippets may change

    51     QObject::connect(m_chrome->renderer(), SIGNAL(chromeResized()), this, SLOT(updateOwnerArea()));

    52   }

    53 

    54   WebChromeContainerSnippet::~WebChromeContainerSnippet()

    55   {

    56     // delete m_layout;

    57   }

    58 

    59   void WebChromeContainerSnippet::positionChildren()

    60   {

    61     ; //Do nothing since the layout positions children automatically.

    62   }

    63 

    64   void WebChromeContainerSnippet::addChild(ChromeSnippet * child)

    65   {

    66     //Prevent layout from stretching the child widgets. NB: Revisit this to make configurable from chrome?

    67     child->widget()->setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed));

    68     //child->widget()->setParentItem(this->widget()); // Shouldn't be needed, right?

    69     m_layout->addItem(child->widget());

    70     //Add a stretch after each element so the layout looks like this: |stretch|item|stretch|item . . . . stretch|item|

    71     m_layout->addStretch();

    72    

    73     // If child is not a container itself, connect to its mouseEvent

    74     WebChromeContainerSnippet * s = qobject_cast <WebChromeContainerSnippet * >(child);

    75     if (!s ) {

    76       //qDebug() << __PRETTY_FUNCTION__ << s  << child->elementId();

    77       // Connect to mouse events of snippets

    78       WebChromeItem * item = static_cast<WebChromeItem*> (child->widget());

    79       connect(item, SIGNAL(mouseEvent(QEvent::Type)), this, SIGNAL(snippetMouseEvent(QEvent::Type)));

    80     } 

    81     qreal childHeight = child->widget()->size().height();

    82     if(childHeight > m_layoutHeight){

    83       m_layoutHeight = childHeight;

    84       updateOwnerArea();

    85     }

    86   }

    87 

    88   void WebChromeContainerSnippet:: updateOwnerArea()

    89   {

    90     QGraphicsWidget * item = static_cast<QGraphicsWidget*> (widget());

    91     //Resize the item

    92     m_ownerArea =  m_chrome->getSnippetRect(m_elementId);

    93     item->setPreferredSize(m_ownerArea.width(), m_layoutHeight);

    94     //Also resize in case item is not part of anchor layout

    95     item->resize(item->preferredSize());

    96   }

    97 

    98   void WebChromeContainerSnippet::setLayoutHeight(int height){

    99     if(m_layoutHeight != height){

   100       m_layoutHeight = height;

   101       updateOwnerArea();

   102     }

   103   }

   104 

   105 } // endof namespace GVA