1 /*

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

     3 * All rights reserved.

     4 *

     5 * This program is free software: you can redistribute it and/or modify

     6 * it under the terms of the GNU Lesser General Public License as published by

     7 * the Free Software Foundation, version 2.1 of the License.

     8 *

     9 * This program is distributed in the hope that it will be useful,

    10 * but WITHOUT ANY WARRANTY; without even the implied warranty of

    11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    12 * GNU Lesser General Public License for more details.

    13 *

    14 * You should have received a copy of the GNU Lesser General Public License

    15 * along with this program.  If not,

    16 * see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/".

    17 *

    18 * Description:

    19 *

    20 */

    21 

    22 #ifndef __GINEBRA_CHROMELAYOUT_H__

    23 #define __GINEBRA_CHROMELAYOUT_H__

    24 

    25 #include <QtGui>

    26 

    27 class ControllableViewBase;

    28 class QGraphicsSceneContextMenuEvent;

    29 

    30 namespace GVA {

    31 

    32   class ChromeSnippet;

    33   class SlidingWidget;

    34 

    35   enum ChromeAnchor

    36   {

    37     anchorNone,

    38     anchorCenter,

    39     anchorTop,

    40     anchorBottom,

    41     anchorLeft,

    42     anchorRight,

    43     anchorTopLeft,

    44     anchorTopRight,

    45     anchorBottomLeft,

    46     anchorBottomRight

    47   };

    48 

    49   enum Aspect

    50   {

    51     portrait,

    52     landscape

    53   };

    54  

    55 

    56   /*!

    57    * \brief This class is responsible for laying out the snippets and views that constitute the UI

    58    */

    59 

    60   class ChromeLayout : public QGraphicsWidget

    61   {

    62 

    63   Q_OBJECT

    64 

    65   public:

    66     ChromeLayout(QGraphicsItem * parent = 0, Qt::WindowFlags wFlags = 0);

    67     virtual ~ChromeLayout();

    68     void addView(ControllableViewBase * controllableView);

    69     void addSnippet(ChromeSnippet * snippet, ChromeSnippet * container);

    70     void anchorSnippet(ChromeSnippet * snippet); //TODO: should be private, but is needed from ChromeWidget::anchorSnippet which is caled from ChromeSnippet

    71     //NB: Should be deprecated (see comment in .cpp)

    72     void adjustAnchorOffset(ChromeSnippet * snippet, qreal delta);

    73     void anchorToView(ChromeSnippet* snippet, const QString & where = "top");

    74     void detachFromView(ChromeSnippet* snippet, const QString & where = "top");

    75     void anchorTogether(ChromeSnippet* first, ChromeSnippet *  second, qreal x = 0, qreal y = 0);

    76     void unAnchor(ChromeSnippet* first);

    77     QGraphicsScene * scene() { return m_scene; }

    78     void setScene(QGraphicsScene *scene);

    79     int bottomBarHeight() { return m_bottomBarHeight;}

    80     /// \brief Returns either "portrait" or "landscape".

    81     QString getDisplayMode() const;

    82     Q_PROPERTY(QString displayMode READ getDisplayMode)

    83 

    84   public slots:

    85     void snippetShown(ChromeSnippet * snippet);

    86     void snippetHiding(ChromeSnippet * snippet);

    87     qreal slideView(qreal delta);

    88     qreal shrinkView(qreal delta);

    89     int width(){ return (int)size().width(); }

    90   

    91   signals:

    92     void resizing(QSizeF newSize);

    93     void aspectChanged(int aspect);

    94 

    95   protected:

    96     virtual void resizeEvent(QGraphicsSceneResizeEvent *ev);

    97     virtual void contextMenuEvent(QGraphicsSceneContextMenuEvent* event);

    98 

    99   private:

   100     void addAnchors();

   101     QGraphicsScene * m_scene;

   102     QGraphicsAnchorLayout *m_layout;

   103     QGraphicsAnchorLayout *m_viewLayout;

   104     SlidingWidget *m_viewPort;

   105     QGraphicsWidget *m_topBar;

   106     QGraphicsWidget *m_bottomBar;

   107     QGraphicsWidget *m_leftBar;

   108     QGraphicsWidget *m_rightBar;

   109     Aspect m_aspect;

   110     int m_bottomBarHeight;

   111   };

   112 

   113 } // end of namespace GVA

   114 

   115 #endif // __GINEBRA_CHROMEWIDGET_H__