colorpickertool.cpp 3.07 KB
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/**************************************************************************
**
** This file is part of Qt Creator
**
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** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
**
** GNU Lesser General Public License Usage
**
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** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
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** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
**************************************************************************/

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#include "colorpickertool.h"
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#include "qdeclarativeviewinspector.h"
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#include <QMouseEvent>
#include <QKeyEvent>
#include <QRectF>
#include <QRgb>
#include <QImage>
#include <QApplication>
#include <QPalette>
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namespace QmlJSDebugger {
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ColorPickerTool::ColorPickerTool(QDeclarativeViewInspector *view) :
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    AbstractLiveEditTool(view)
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{
    m_selectedColor.setRgb(0,0,0);
}

ColorPickerTool::~ColorPickerTool()
{

}

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void ColorPickerTool::mousePressEvent(QMouseEvent * /*event*/)
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{
}

void ColorPickerTool::mouseMoveEvent(QMouseEvent *event)
{
    pickColor(event->pos());
}

void ColorPickerTool::mouseReleaseEvent(QMouseEvent *event)
{
    pickColor(event->pos());
}

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void ColorPickerTool::mouseDoubleClickEvent(QMouseEvent * /*event*/)
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{
}


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void ColorPickerTool::hoverMoveEvent(QMouseEvent * /*event*/)
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{
}

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void ColorPickerTool::keyPressEvent(QKeyEvent * /*event*/)
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{
}

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void ColorPickerTool::keyReleaseEvent(QKeyEvent * /*keyEvent*/)
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{
}
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void ColorPickerTool::wheelEvent(QWheelEvent * /*event*/)
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{
}

void ColorPickerTool::itemsAboutToRemoved(const QList<QGraphicsItem*> &/*itemList*/)
{
}

void ColorPickerTool::clear()
{
    view()->setCursor(Qt::CrossCursor);
}

void ColorPickerTool::selectedItemsChanged(const QList<QGraphicsItem*> &/*itemList*/)
{
}

void ColorPickerTool::pickColor(const QPoint &pos)
{
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    QRgb fillColor = view()->backgroundBrush().color().rgb();
    if (view()->backgroundBrush().style() == Qt::NoBrush)
        fillColor = view()->palette().color(QPalette::Base).rgb();

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    QRectF target(0,0, 1, 1);
    QRect source(pos.x(), pos.y(), 1, 1);
    QImage img(1, 1, QImage::Format_ARGB32);
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    img.fill(fillColor);
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    QPainter painter(&img);
    view()->render(&painter, target, source);
    m_selectedColor = QColor::fromRgb(img.pixel(0, 0));

    emit selectedColorChanged(m_selectedColor);
}

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} // namespace QmlJSDebugger