1 files changed, 207 insertions, 0 deletions
diff --git a/src/qtconfig/colorbutton.cpp b/src/qtconfig/colorbutton.cpp
new file mode 100644
index 000000000..33c1b25df
--- /dev/null
+++ b/src/qtconfig/colorbutton.cpp
@@ -0,0 +1,207 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the tools applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "colorbutton.h"
+
+#include <QApplication>
+#include <QtEvents>
+#include <QColorDialog>
+#include <QPainter>
+#include <QMimeData>
+#include <QStyle>
+#include <QStyleOption>
+
+QT_BEGIN_NAMESPACE
+
+ColorButton::ColorButton(QWidget *parent)
+    : QAbstractButton(parent)
+    , col(Qt::black)
+    , mousepressed(false)
+{
+    setAcceptDrops(true);
+    connect(this, SIGNAL(clicked()), SLOT(changeColor()));
+}
+
+
+ColorButton::ColorButton(const QColor &c, QWidget *parent)
+    : QAbstractButton(parent)
+    , col(c)
+{
+    setAcceptDrops(true);
+    connect(this, SIGNAL(clicked()), SLOT(changeColor()));
+}
+
+
+void ColorButton::setColor(const QColor &c)
+{
+    col = c;
+    update();
+}
+
+
+void ColorButton::changeColor()
+{
+    QColor c = QColorDialog::getColor(col, qApp->activeWindow());
+
+    if (c.isValid()) {
+        setColor(c);
+        emit colorChanged(color());
+    }
+}
+
+
+QSize ColorButton::sizeHint() const
+{
+    return QSize(40, 25);
+}
+
+
+QSize ColorButton::minimumSizeHint() const
+{
+    return QSize(40, 25);
+}
+
+
+void ColorButton::drawButton(QPainter *p)
+{
+    QStyleOptionButton buttonOptions;
+    buttonOptions.init(this);
+    buttonOptions.features = QStyleOptionButton::None;
+    buttonOptions.rect = rect();
+    buttonOptions.palette = palette();
+    buttonOptions.state = (isDown() ? QStyle::State_Sunken : QStyle::State_Raised);
+    style()->drawPrimitive(QStyle::PE_PanelButtonBevel, &buttonOptions, p, this);
+
+    p->save();
+    drawButtonLabel(p);
+    p->restore();
+
+    QStyleOptionFocusRect frectOptions;
+    frectOptions.init(this);
+    frectOptions.rect = style()->subElementRect(QStyle::SE_PushButtonFocusRect, &buttonOptions, this);
+    if (hasFocus())
+        style()->drawPrimitive(QStyle::PE_FrameFocusRect, &frectOptions, p, this);
+}
+
+
+void ColorButton::drawButtonLabel(QPainter *p)
+{
+    QPalette::ColorGroup cg =
+        (isEnabled() ? (hasFocus() ? QPalette::Active : QPalette::Inactive) : QPalette::Disabled);
+
+    p->setPen(palette().color(cg, QPalette::ButtonText));
+    p->setBrush(col);
+    p->drawRect(width() / 4, height() / 4, width() / 2 - 1, height() / 2 - 1);
+}
+
+
+void ColorButton::dragEnterEvent(QDragEnterEvent *e)
+{
+    if (!e->mimeData()->hasColor()) {
+        e->ignore();
+        return;
+    }
+}
+
+
+void ColorButton::dragMoveEvent(QDragMoveEvent *e)
+{
+    if (!e->mimeData()->hasColor()) {
+        e->ignore();
+        return;
+    }
+
+    e->accept();
+}
+
+
+void ColorButton::dropEvent(QDropEvent *e)
+{
+    if (!e->mimeData()->hasColor()) {
+        e->ignore();
+        return;
+    }
+
+    QColor c = qvariant_cast<QColor>(e->mimeData()->colorData());
+    setColor(c);
+    emit colorChanged(color());
+}
+
+
+void ColorButton::mousePressEvent(QMouseEvent *e)
+{
+    presspos = e->pos();
+    mousepressed = true;
+    QAbstractButton::mousePressEvent(e);
+}
+
+
+void ColorButton::mouseReleaseEvent(QMouseEvent *e)
+{
+    mousepressed = false;
+    QAbstractButton::mouseReleaseEvent(e);
+}
+
+
+void ColorButton::mouseMoveEvent(QMouseEvent *e)
+{
+    if (!mousepressed)
+        return;
+
+    if ((presspos - e->pos()).manhattanLength() > QApplication::startDragDistance()) {
+        mousepressed = false;
+        setDown(false);
+
+        QDrag *drag = new QDrag(this);
+        QMimeData *data = new QMimeData;
+        data->setColorData(color());
+        drag->setMimeData(data);
+        drag->start(Qt::CopyAction);
+    }
+}
+
+void ColorButton::paintEvent(QPaintEvent *)
+{
+    QPainter p(this);
+    drawButton(&p);
+}
+
+QT_END_NAMESPACE