1 #include <QStandardItemModel>

     2 #include <QMouseEvent>

     3 #include <QWheelEvent>

     4 

     5 #include "colorwidget.h"

     6 #include "hwconsts.h"

     7 

     8 ColorWidget::ColorWidget(QStandardItemModel *colorsModel, QWidget *parent) :

     9     QWidget(parent)

    10 {

    11     m_colorsModel = colorsModel;

    12 

    13     setColor(0);

    14     setStyleSheet("");

    15     setAutoFillBackground(true);

    16 

    17     connect(m_colorsModel, SIGNAL(dataChanged(QModelIndex,QModelIndex)), this, SLOT(dataChanged(QModelIndex,QModelIndex)));

    18 }

    19 

    20 ColorWidget::~ColorWidget()

    21 {

    22 

    23 }

    24 

    25 void ColorWidget::setColor(int color)

    26 {

    27     Q_ASSERT_X(color >= 0 && color < m_colorsModel->rowCount(), "ColorWidget::setColor", "Color index out of range");

    28 

    29     m_color = color;

    30 

    31     QStandardItem * item = m_colorsModel->item(m_color);

    32 

    33     QPalette p = palette();

    34     p.setColor(QPalette::Window, item->data().value<QColor>());

    35     setPalette(p);

    36 

    37     emit colorChanged(m_color);

    38 }

    39 

    40 int ColorWidget::getColor()

    41 {

    42     return m_color;

    43 }

    44 

    45 void ColorWidget::dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight)

    46 {

    47     if(m_color >= topLeft.row() && m_color <= bottomRight.row())

    48         setColor(m_color);

    49 }

    50 

    51 void ColorWidget::mousePressEvent(QMouseEvent * event)

    52 {

    53     switch(event->button())

    54     {

    55         case Qt::LeftButton:

    56             setColor((m_color + 1) % m_colorsModel->rowCount());

    57             break;

    58         case Qt::RightButton:

    59             setColor((m_color + m_colorsModel->rowCount() - 1) % m_colorsModel->rowCount());

    60             break;

    61         default:;

    62     }

    63 }

    64 

    65 void ColorWidget::wheelEvent(QWheelEvent *event)

    66 {

    67     if(event->delta() > 0)

    68         setColor((m_color + 1) % m_colorsModel->rowCount());

    69     else

    70         setColor((m_color + m_colorsModel->rowCount() - 1) % m_colorsModel->rowCount());

    71 }