1 /*!

     2 * Copyright (c) 2009 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: Implements grid of numeric buttons

    15 *

    16 */

    17 

    18 #ifndef DIALPADNUMERICBUTTONGRID_H

    19 #define DIALPADNUMERICBUTTONGRID_H

    20 

    21 #include <QTextLayout>

    22 #include <QColor>

    23 #include <hbinputbuttongroup.h>

    24 

    25 class DialpadNumericButton;

    26 

    27 class DialpadNumericButtonGrid : public HbInputButtonGroup

    28 {

    29     Q_OBJECT

    30 

    31 public:

    32     explicit DialpadNumericButtonGrid(

    33         const HbMainWindow& mainWindow,

    34         QGraphicsItem* parent=0);

    35 

    36     ~DialpadNumericButtonGrid();

    37 

    38 public:

    39     void resetButtons();

    40 

    41     QChar inputCharacter(int keyCode) const;

    42 

    43 protected slots:

    44     void setButtonTexts();

    45     void updateButtonLabels();

    46     void cancelButtonPress();

    47 

    48 protected:

    49     inline DialpadNumericButton* button(int i) const;

    50     void updateColorArray();

    51     void updateIconColor();

    52     void updateTextLayouts(const QSizeF &size);

    53     void resolveTextContent(QList<QString> &content, bool& useTwoRows);

    54     void createTextLayouts(const QSizeF &size,

    55                            const QList<QString> &content,

    56                            bool useTwoRows);

    57     void layoutTextLines(const QSizeF &size,

    58                          QTextLayout &textLayout,

    59                          int state,

    60                          int type,

    61                          bool useTwoRows);

    62     inline void layoutPrimaryText(

    63         QTextLayout& layout,

    64         DialpadNumericButton& button,

    65         qreal cellWidth,

    66         qreal cellHeight,

    67         qreal textHeight) const;

    68     inline void layoutSecondaryText(

    69         QTextLayout& layout,

    70         DialpadNumericButton& button,

    71         qreal cellWidth,

    72         qreal cellHeight,

    73         qreal textHeight,

    74         qreal textDescent,

    75         bool useTwoRows) const;

    76     bool isButtonPressed() const;

    77     void updateIconSizes();

    78 

    79 protected:

    80     void paint(QPainter* painter,

    81                const QStyleOptionGraphicsItem* option,

    82                QWidget* widget);

    83     void setGeometry(const QRectF &rect);

    84     void changeEvent(QEvent *event);

    85 

    86 private:

    87     enum ButtonState {

    88         Normal = 0,

    89         Pressed,

    90         StateCount

    91     };

    92 

    93     enum TextType {

    94         PrimaryText = 0,

    95         SecondaryText,

    96         TextTypeCount

    97     };

    98 

    99 private:

   100     const HbMainWindow& mMainWindow;

   101     QList<QColor> mColors;

   102     QList<QTextLayout*> mTextLayouts;

   103     qreal mUnit;

   104     qreal mMaxPrimaryLineWidth;

   105     qreal mPrimaryTextBaseline;

   106     QMap<int,QChar> mGeneratedChar;

   107 };

   108 

   109 #endif // DIALPADNUMERICBUTTONGRID_H