diff -r 000000000000 -r 1918ee327afb tools/shared/qtgradienteditor/qtgradientstopscontroller.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/shared/qtgradienteditor/qtgradientstopscontroller.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,724 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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 "qtgradientstopscontroller.h"
+#include "ui_qtgradienteditor.h"
+#include "qtgradientstopsmodel.h"
+
+#include <QtCore/QTimer>
+
+QT_BEGIN_NAMESPACE
+
+class QtGradientStopsControllerPrivate
+{
+    QtGradientStopsController *q_ptr;
+    Q_DECLARE_PUBLIC(QtGradientStopsController)
+public:
+    typedef QMap<qreal, QColor> PositionColorMap;
+    typedef QMap<qreal, QtGradientStop *> PositionStopMap;
+
+    void slotHsvClicked();
+    void slotRgbClicked();
+
+    void slotCurrentStopChanged(QtGradientStop *stop);
+    void slotStopMoved(QtGradientStop *stop, qreal newPos);
+    void slotStopsSwapped(QtGradientStop *stop1, QtGradientStop *stop2);
+    void slotStopChanged(QtGradientStop *stop, const QColor &newColor);
+    void slotStopSelected(QtGradientStop *stop, bool selected);
+    void slotStopAdded(QtGradientStop *stop);
+    void slotStopRemoved(QtGradientStop *stop);
+    void slotUpdatePositionSpinBox();
+
+    void slotChangeColor(const QColor &color);
+    void slotChangeHue(const QColor &color);
+    void slotChangeSaturation(const QColor &color);
+    void slotChangeValue(const QColor &color);
+    void slotChangeAlpha(const QColor &color);
+    void slotChangeHue(int color);
+    void slotChangeSaturation(int color);
+    void slotChangeValue(int color);
+    void slotChangeAlpha(int color);
+    void slotChangePosition(double value);
+
+    void slotChangeZoom(int value);
+    void slotZoomIn();
+    void slotZoomOut();
+    void slotZoomAll();
+    void slotZoomChanged(double zoom);
+
+    void enableCurrent(bool enable);
+    void setColorSpinBoxes(const QColor &color);
+    PositionColorMap stopsData(const PositionStopMap &stops) const;
+    QGradientStops makeGradientStops(const PositionColorMap &data) const;
+    void updateZoom(double zoom);
+
+    QtGradientStopsModel *m_model;
+    QColor::Spec m_spec;
+
+    Ui::QtGradientEditor *m_ui;
+};
+
+void QtGradientStopsControllerPrivate::enableCurrent(bool enable)
+{
+    m_ui->positionLabel->setEnabled(enable);
+    m_ui->colorLabel->setEnabled(enable);
+    m_ui->hLabel->setEnabled(enable);
+    m_ui->sLabel->setEnabled(enable);
+    m_ui->vLabel->setEnabled(enable);
+    m_ui->aLabel->setEnabled(enable);
+    m_ui->hueLabel->setEnabled(enable);
+    m_ui->saturationLabel->setEnabled(enable);
+    m_ui->valueLabel->setEnabled(enable);
+    m_ui->alphaLabel->setEnabled(enable);
+
+    m_ui->positionSpinBox->setEnabled(enable);
+    m_ui->colorButton->setEnabled(enable);
+
+    m_ui->hueColorLine->setEnabled(enable);
+    m_ui->saturationColorLine->setEnabled(enable);
+    m_ui->valueColorLine->setEnabled(enable);
+    m_ui->alphaColorLine->setEnabled(enable);
+
+    m_ui->hueSpinBox->setEnabled(enable);
+    m_ui->saturationSpinBox->setEnabled(enable);
+    m_ui->valueSpinBox->setEnabled(enable);
+    m_ui->alphaSpinBox->setEnabled(enable);
+}
+
+QtGradientStopsControllerPrivate::PositionColorMap QtGradientStopsControllerPrivate::stopsData(const PositionStopMap &stops) const
+{
+    PositionColorMap data;
+    PositionStopMap::ConstIterator itStop = stops.constBegin();
+    while (itStop != stops.constEnd()) {
+        QtGradientStop *stop = itStop.value();
+        data[stop->position()] = stop->color();
+
+        ++itStop;
+    }
+    return data;
+}
+
+QGradientStops QtGradientStopsControllerPrivate::makeGradientStops(const PositionColorMap &data) const
+{
+    QGradientStops stops;
+    PositionColorMap::ConstIterator itData = data.constBegin();
+    while (itData != data.constEnd()) {
+        stops << QPair<qreal, QColor>(itData.key(), itData.value());
+
+        ++itData;
+    }
+    return stops;
+}
+
+void QtGradientStopsControllerPrivate::updateZoom(double zoom)
+{
+    m_ui->gradientStopsWidget->setZoom(zoom);
+    m_ui->zoomSpinBox->blockSignals(true);
+    m_ui->zoomSpinBox->setValue(qRound(zoom * 100));
+    m_ui->zoomSpinBox->blockSignals(false);
+    bool zoomInEnabled = true;
+    bool zoomOutEnabled = true;
+    bool zoomAllEnabled = true;
+    if (zoom <= 1) {
+        zoomAllEnabled = false;
+        zoomOutEnabled = false;
+    } else if (zoom >= 100) {
+        zoomInEnabled = false;
+    }
+    m_ui->zoomInButton->setEnabled(zoomInEnabled);
+    m_ui->zoomOutButton->setEnabled(zoomOutEnabled);
+    m_ui->zoomAllButton->setEnabled(zoomAllEnabled);
+}
+
+void QtGradientStopsControllerPrivate::slotHsvClicked()
+{
+    QString h = QApplication::translate("qdesigner_internal::QtGradientStopsController", "H", 0, QApplication::UnicodeUTF8);
+    QString s = QApplication::translate("qdesigner_internal::QtGradientStopsController", "S", 0, QApplication::UnicodeUTF8);
+    QString v = QApplication::translate("qdesigner_internal::QtGradientStopsController", "V", 0, QApplication::UnicodeUTF8);
+
+    m_ui->hLabel->setText(h);
+    m_ui->sLabel->setText(s);
+    m_ui->vLabel->setText(v);
+
+    h = QApplication::translate("qdesigner_internal::QtGradientStopsController", "Hue", 0, QApplication::UnicodeUTF8);
+    s = QApplication::translate("qdesigner_internal::QtGradientStopsController", "Sat", 0, QApplication::UnicodeUTF8);
+    v = QApplication::translate("qdesigner_internal::QtGradientStopsController", "Val", 0, QApplication::UnicodeUTF8);
+
+    const QString hue = QApplication::translate("qdesigner_internal::QtGradientStopsController", "Hue", 0, QApplication::UnicodeUTF8);
+    const QString saturation = QApplication::translate("qdesigner_internal::QtGradientStopsController", "Saturation", 0, QApplication::UnicodeUTF8);
+    const QString value = QApplication::translate("qdesigner_internal::QtGradientStopsController", "Value", 0, QApplication::UnicodeUTF8);
+
+    m_ui->hLabel->setToolTip(hue);
+    m_ui->hueLabel->setText(h);
+    m_ui->hueColorLine->setToolTip(hue);
+    m_ui->hueColorLine->setColorComponent(QtColorLine::Hue);
+
+    m_ui->sLabel->setToolTip(saturation);
+    m_ui->saturationLabel->setText(s);
+    m_ui->saturationColorLine->setToolTip(saturation);
+    m_ui->saturationColorLine->setColorComponent(QtColorLine::Saturation);
+
+    m_ui->vLabel->setToolTip(value);
+    m_ui->valueLabel->setText(v);
+    m_ui->valueColorLine->setToolTip(value);
+    m_ui->valueColorLine->setColorComponent(QtColorLine::Value);
+
+    setColorSpinBoxes(m_ui->colorButton->color());
+}
+
+void QtGradientStopsControllerPrivate::slotRgbClicked()
+{
+    QString r = QApplication::translate("qdesigner_internal::QtGradientStopsController", "R", 0, QApplication::UnicodeUTF8);
+    QString g = QApplication::translate("qdesigner_internal::QtGradientStopsController", "G", 0, QApplication::UnicodeUTF8);
+    QString b = QApplication::translate("qdesigner_internal::QtGradientStopsController", "B", 0, QApplication::UnicodeUTF8);
+
+    m_ui->hLabel->setText(r);
+    m_ui->sLabel->setText(g);
+    m_ui->vLabel->setText(b);
+
+    QString red = QApplication::translate("qdesigner_internal::QtGradientStopsController", "Red", 0, QApplication::UnicodeUTF8);
+    QString green = QApplication::translate("qdesigner_internal::QtGradientStopsController", "Green", 0, QApplication::UnicodeUTF8);
+    QString blue = QApplication::translate("qdesigner_internal::QtGradientStopsController", "Blue", 0, QApplication::UnicodeUTF8);
+
+    m_ui->hLabel->setToolTip(red);
+    m_ui->hueLabel->setText(red);
+    m_ui->hueColorLine->setToolTip(red);
+    m_ui->hueColorLine->setColorComponent(QtColorLine::Red);
+
+    m_ui->sLabel->setToolTip(green);
+    m_ui->saturationLabel->setText(green);
+    m_ui->saturationColorLine->setToolTip(green);
+    m_ui->saturationColorLine->setColorComponent(QtColorLine::Green);
+
+    m_ui->vLabel->setToolTip(blue);
+    m_ui->valueLabel->setText(blue);
+    m_ui->valueColorLine->setToolTip(blue);
+    m_ui->valueColorLine->setColorComponent(QtColorLine::Blue);
+
+    setColorSpinBoxes(m_ui->colorButton->color());
+}
+
+void QtGradientStopsControllerPrivate::setColorSpinBoxes(const QColor &color)
+{
+    m_ui->hueSpinBox->blockSignals(true);
+    m_ui->saturationSpinBox->blockSignals(true);
+    m_ui->valueSpinBox->blockSignals(true);
+    m_ui->alphaSpinBox->blockSignals(true);
+    if (m_ui->hsvRadioButton->isChecked()) {
+        if (m_ui->hueSpinBox->maximum() != 359)
+            m_ui->hueSpinBox->setMaximum(359);
+        if (m_ui->hueSpinBox->value() != color.hue())
+            m_ui->hueSpinBox->setValue(color.hue());
+        if (m_ui->saturationSpinBox->value() != color.saturation())
+            m_ui->saturationSpinBox->setValue(color.saturation());
+        if (m_ui->valueSpinBox->value() != color.value())
+            m_ui->valueSpinBox->setValue(color.value());
+    } else {
+        if (m_ui->hueSpinBox->maximum() != 255)
+            m_ui->hueSpinBox->setMaximum(255);
+        if (m_ui->hueSpinBox->value() != color.red())
+            m_ui->hueSpinBox->setValue(color.red());
+        if (m_ui->saturationSpinBox->value() != color.green())
+            m_ui->saturationSpinBox->setValue(color.green());
+        if (m_ui->valueSpinBox->value() != color.blue())
+            m_ui->valueSpinBox->setValue(color.blue());
+    }
+    m_ui->alphaSpinBox->setValue(color.alpha());
+    m_ui->hueSpinBox->blockSignals(false);
+    m_ui->saturationSpinBox->blockSignals(false);
+    m_ui->valueSpinBox->blockSignals(false);
+    m_ui->alphaSpinBox->blockSignals(false);
+}
+
+void QtGradientStopsControllerPrivate::slotCurrentStopChanged(QtGradientStop *stop)
+{
+    if (!stop) {
+        enableCurrent(false);
+        return;
+    }
+    enableCurrent(true);
+
+    QTimer::singleShot(0, q_ptr, SLOT(slotUpdatePositionSpinBox()));
+
+    m_ui->colorButton->setColor(stop->color());
+    m_ui->hueColorLine->setColor(stop->color());
+    m_ui->saturationColorLine->setColor(stop->color());
+    m_ui->valueColorLine->setColor(stop->color());
+    m_ui->alphaColorLine->setColor(stop->color());
+    setColorSpinBoxes(stop->color());
+}
+
+void QtGradientStopsControllerPrivate::slotStopMoved(QtGradientStop *stop, qreal newPos)
+{
+    QTimer::singleShot(0, q_ptr, SLOT(slotUpdatePositionSpinBox()));
+
+    PositionColorMap stops = stopsData(m_model->stops());
+    stops.remove(stop->position());
+    stops[newPos] = stop->color();
+
+    QGradientStops gradStops = makeGradientStops(stops);
+    emit q_ptr->gradientStopsChanged(gradStops);
+}
+
+void QtGradientStopsControllerPrivate::slotStopsSwapped(QtGradientStop *stop1, QtGradientStop *stop2)
+{
+    QTimer::singleShot(0, q_ptr, SLOT(slotUpdatePositionSpinBox()));
+
+    PositionColorMap stops = stopsData(m_model->stops());
+    const qreal pos1 = stop1->position();
+    const qreal pos2 = stop2->position();
+    stops[pos1] = stop2->color();
+    stops[pos2] = stop1->color();
+
+    QGradientStops gradStops = makeGradientStops(stops);
+    emit q_ptr->gradientStopsChanged(gradStops);
+}
+
+void QtGradientStopsControllerPrivate::slotStopAdded(QtGradientStop *stop)
+{
+    PositionColorMap stops = stopsData(m_model->stops());
+    stops[stop->position()] = stop->color();
+
+    QGradientStops gradStops = makeGradientStops(stops);
+    emit q_ptr->gradientStopsChanged(gradStops);
+}
+
+void QtGradientStopsControllerPrivate::slotStopRemoved(QtGradientStop *stop)
+{
+    PositionColorMap stops = stopsData(m_model->stops());
+    stops.remove(stop->position());
+
+    QGradientStops gradStops = makeGradientStops(stops);
+    emit q_ptr->gradientStopsChanged(gradStops);
+}
+
+void QtGradientStopsControllerPrivate::slotStopChanged(QtGradientStop *stop, const QColor &newColor)
+{
+    if (m_model->currentStop() == stop) {
+        m_ui->colorButton->setColor(newColor);
+        m_ui->hueColorLine->setColor(newColor);
+        m_ui->saturationColorLine->setColor(newColor);
+        m_ui->valueColorLine->setColor(newColor);
+        m_ui->alphaColorLine->setColor(newColor);
+        setColorSpinBoxes(newColor);
+    }
+
+    PositionColorMap stops = stopsData(m_model->stops());
+    stops[stop->position()] = newColor;
+
+    QGradientStops gradStops = makeGradientStops(stops);
+    emit q_ptr->gradientStopsChanged(gradStops);
+}
+
+void QtGradientStopsControllerPrivate::slotStopSelected(QtGradientStop *stop, bool selected)
+{
+    Q_UNUSED(stop)
+    Q_UNUSED(selected)
+    QTimer::singleShot(0, q_ptr, SLOT(slotUpdatePositionSpinBox()));
+}
+
+void QtGradientStopsControllerPrivate::slotUpdatePositionSpinBox()
+{
+    QtGradientStop *current = m_model->currentStop();
+    if (!current)
+        return;
+
+    qreal min = 0.0;
+    qreal max = 1.0;
+    const qreal pos = current->position();
+
+    QtGradientStop *first = m_model->firstSelected();
+    QtGradientStop *last = m_model->lastSelected();
+
+    if (first && last) {
+        const qreal minPos = pos - first->position() - 0.0004999;
+        const qreal maxPos = pos + 1.0 - last->position() + 0.0004999;
+
+        if (max > maxPos)
+            max = maxPos;
+        if (min < minPos)
+            min = minPos;
+
+        if (first->position() == 0.0)
+            min = pos;
+        if (last->position() == 1.0)
+            max = pos;
+    }
+
+    const int spinMin = qRound(m_ui->positionSpinBox->minimum() * 1000);
+    const int spinMax = qRound(m_ui->positionSpinBox->maximum() * 1000);
+
+    const int newMin = qRound(min * 1000);
+    const int newMax = qRound(max * 1000);
+
+    m_ui->positionSpinBox->blockSignals(true);
+    if (spinMin != newMin || spinMax != newMax) {
+        m_ui->positionSpinBox->setRange((double)newMin / 1000, (double)newMax / 1000);
+    }
+    if (m_ui->positionSpinBox->value() != pos)
+        m_ui->positionSpinBox->setValue(pos);
+    m_ui->positionSpinBox->blockSignals(false);
+}
+
+void QtGradientStopsControllerPrivate::slotChangeColor(const QColor &color)
+{
+    QtGradientStop *stop = m_model->currentStop();
+    if (!stop)
+        return;
+    m_model->changeStop(stop, color);
+    QList<QtGradientStop *> stops = m_model->selectedStops();
+    QListIterator<QtGradientStop *> itStop(stops);
+    while (itStop.hasNext()) {
+        QtGradientStop *s = itStop.next();
+        if (s != stop)
+            m_model->changeStop(s, color);
+    }
+}
+
+void QtGradientStopsControllerPrivate::slotChangeHue(const QColor &color)
+{
+    QtGradientStop *stop = m_model->currentStop();
+    if (!stop)
+        return;
+    m_model->changeStop(stop, color);
+    QList<QtGradientStop *> stops = m_model->selectedStops();
+    QListIterator<QtGradientStop *> itStop(stops);
+    while (itStop.hasNext()) {
+        QtGradientStop *s = itStop.next();
+        if (s != stop) {
+            QColor c = s->color();
+            if (m_ui->hsvRadioButton->isChecked())
+                c.setHsvF(color.hueF(), c.saturationF(), c.valueF(), c.alphaF());
+            else
+                c.setRgbF(color.redF(), c.greenF(), c.blueF(), c.alphaF());
+            m_model->changeStop(s, c);
+        }
+    }
+}
+
+void QtGradientStopsControllerPrivate::slotChangeHue(int color)
+{
+    QColor c = m_ui->hueColorLine->color();
+    if (m_ui->hsvRadioButton->isChecked())
+        c.setHsvF((qreal)color / 360.0, c.saturationF(), c.valueF(), c.alphaF());
+    else
+        c.setRed(color);
+    slotChangeHue(c);
+}
+
+void QtGradientStopsControllerPrivate::slotChangeSaturation(const QColor &color)
+{
+    QtGradientStop *stop = m_model->currentStop();
+    if (!stop)
+        return;
+    m_model->changeStop(stop, color);
+    QList<QtGradientStop *> stops = m_model->selectedStops();
+    QListIterator<QtGradientStop *> itStop(stops);
+    while (itStop.hasNext()) {
+        QtGradientStop *s = itStop.next();
+        if (s != stop) {
+            QColor c = s->color();
+            if (m_ui->hsvRadioButton->isChecked()) {
+                c.setHsvF(c.hueF(), color.saturationF(), c.valueF(), c.alphaF());
+                int hue = c.hue();
+                if (hue == 360 || hue == -1)
+                    c.setHsvF(0.0, c.saturationF(), c.valueF(), c.alphaF());
+            } else {
+                c.setRgbF(c.redF(), color.greenF(), c.blueF(), c.alphaF());
+            }
+            m_model->changeStop(s, c);
+        }
+    }
+}
+
+void QtGradientStopsControllerPrivate::slotChangeSaturation(int color)
+{
+    QColor c = m_ui->saturationColorLine->color();
+    if (m_ui->hsvRadioButton->isChecked())
+        c.setHsvF(c.hueF(), (qreal)color / 255, c.valueF(), c.alphaF());
+    else
+        c.setGreen(color);
+    slotChangeSaturation(c);
+}
+
+void QtGradientStopsControllerPrivate::slotChangeValue(const QColor &color)
+{
+    QtGradientStop *stop = m_model->currentStop();
+    if (!stop)
+        return;
+    m_model->changeStop(stop, color);
+    QList<QtGradientStop *> stops = m_model->selectedStops();
+    QListIterator<QtGradientStop *> itStop(stops);
+    while (itStop.hasNext()) {
+        QtGradientStop *s = itStop.next();
+        if (s != stop) {
+            QColor c = s->color();
+            if (m_ui->hsvRadioButton->isChecked()) {
+                c.setHsvF(c.hueF(), c.saturationF(), color.valueF(), c.alphaF());
+                int hue = c.hue();
+                if (hue == 360 || hue == -1)
+                    c.setHsvF(0.0, c.saturationF(), c.valueF(), c.alphaF());
+            } else {
+                c.setRgbF(c.redF(), c.greenF(), color.blueF(), c.alphaF());
+            }
+            m_model->changeStop(s, c);
+        }
+    }
+}
+
+void QtGradientStopsControllerPrivate::slotChangeValue(int color)
+{
+    QColor c = m_ui->valueColorLine->color();
+    if (m_ui->hsvRadioButton->isChecked())
+        c.setHsvF(c.hueF(), c.saturationF(), (qreal)color / 255, c.alphaF());
+    else
+        c.setBlue(color);
+    slotChangeValue(c);
+}
+
+void QtGradientStopsControllerPrivate::slotChangeAlpha(const QColor &color)
+{
+    QtGradientStop *stop = m_model->currentStop();
+    if (!stop)
+        return;
+    m_model->changeStop(stop, color);
+    QList<QtGradientStop *> stops = m_model->selectedStops();
+    QListIterator<QtGradientStop *> itStop(stops);
+    while (itStop.hasNext()) {
+        QtGradientStop *s = itStop.next();
+        if (s != stop) {
+            QColor c = s->color();
+            if (m_ui->hsvRadioButton->isChecked()) {
+                c.setHsvF(c.hueF(), c.saturationF(), c.valueF(), color.alphaF());
+                int hue = c.hue();
+                if (hue == 360 || hue == -1)
+                    c.setHsvF(0.0, c.saturationF(), c.valueF(), c.alphaF());
+            } else {
+                c.setRgbF(c.redF(), c.greenF(), c.blueF(), color.alphaF());
+            }
+            m_model->changeStop(s, c);
+        }
+    }
+}
+
+void QtGradientStopsControllerPrivate::slotChangeAlpha(int color)
+{
+    QColor c = m_ui->alphaColorLine->color();
+    if (m_ui->hsvRadioButton->isChecked())
+        c.setHsvF(c.hueF(), c.saturationF(), c.valueF(), (qreal)color / 255);
+    else
+        c.setAlpha(color);
+    slotChangeAlpha(c);
+}
+
+void QtGradientStopsControllerPrivate::slotChangePosition(double value)
+{
+    QtGradientStop *stop = m_model->currentStop();
+    if (!stop)
+        return;
+
+    m_model->moveStops(value);
+}
+
+void QtGradientStopsControllerPrivate::slotChangeZoom(int value)
+{
+    updateZoom(value / 100.0);
+}
+
+void QtGradientStopsControllerPrivate::slotZoomIn()
+{
+    double newZoom = m_ui->gradientStopsWidget->zoom() * 2;
+    if (newZoom > 100)
+        newZoom = 100;
+    updateZoom(newZoom);
+}
+
+void QtGradientStopsControllerPrivate::slotZoomOut()
+{
+    double newZoom = m_ui->gradientStopsWidget->zoom() / 2;
+    if (newZoom < 1)
+        newZoom = 1;
+    updateZoom(newZoom);
+}
+
+void QtGradientStopsControllerPrivate::slotZoomAll()
+{
+    updateZoom(1);
+}
+
+void QtGradientStopsControllerPrivate::slotZoomChanged(double zoom)
+{
+    updateZoom(zoom);
+}
+
+QtGradientStopsController::QtGradientStopsController(QObject *parent)
+    : QObject(parent), d_ptr(new QtGradientStopsControllerPrivate())
+{
+    d_ptr->q_ptr = this;
+
+    d_ptr->m_spec = QColor::Hsv;
+}
+
+void QtGradientStopsController::setUi(Ui::QtGradientEditor *ui)
+{
+    d_ptr->m_ui = ui;
+
+    d_ptr->m_ui->hueColorLine->setColorComponent(QtColorLine::Hue);
+    d_ptr->m_ui->saturationColorLine->setColorComponent(QtColorLine::Saturation);
+    d_ptr->m_ui->valueColorLine->setColorComponent(QtColorLine::Value);
+    d_ptr->m_ui->alphaColorLine->setColorComponent(QtColorLine::Alpha);
+
+    d_ptr->m_model = new QtGradientStopsModel(this);
+    d_ptr->m_ui->gradientStopsWidget->setGradientStopsModel(d_ptr->m_model);
+    connect(d_ptr->m_model, SIGNAL(currentStopChanged(QtGradientStop *)),
+                this, SLOT(slotCurrentStopChanged(QtGradientStop *)));
+    connect(d_ptr->m_model, SIGNAL(stopMoved(QtGradientStop *, qreal)),
+                this, SLOT(slotStopMoved(QtGradientStop *, qreal)));
+    connect(d_ptr->m_model, SIGNAL(stopsSwapped(QtGradientStop *, QtGradientStop *)),
+                this, SLOT(slotStopsSwapped(QtGradientStop *, QtGradientStop *)));
+    connect(d_ptr->m_model, SIGNAL(stopChanged(QtGradientStop *, const QColor &)),
+                this, SLOT(slotStopChanged(QtGradientStop *, const QColor &)));
+    connect(d_ptr->m_model, SIGNAL(stopSelected(QtGradientStop *, bool)),
+                this, SLOT(slotStopSelected(QtGradientStop *, bool)));
+    connect(d_ptr->m_model, SIGNAL(stopAdded(QtGradientStop *)),
+                this, SLOT(slotStopAdded(QtGradientStop *)));
+    connect(d_ptr->m_model, SIGNAL(stopRemoved(QtGradientStop *)),
+                this, SLOT(slotStopRemoved(QtGradientStop *)));
+
+    connect(d_ptr->m_ui->hueColorLine, SIGNAL(colorChanged(const QColor &)),
+                this, SLOT(slotChangeHue(const QColor &)));
+    connect(d_ptr->m_ui->saturationColorLine, SIGNAL(colorChanged(const QColor &)),
+                this, SLOT(slotChangeSaturation(const QColor &)));
+    connect(d_ptr->m_ui->valueColorLine, SIGNAL(colorChanged(const QColor &)),
+                this, SLOT(slotChangeValue(const QColor &)));
+    connect(d_ptr->m_ui->alphaColorLine, SIGNAL(colorChanged(const QColor &)),
+                this, SLOT(slotChangeAlpha(const QColor &)));
+    connect(d_ptr->m_ui->colorButton, SIGNAL(colorChanged(const QColor &)),
+                this, SLOT(slotChangeColor(const QColor &)));
+
+    connect(d_ptr->m_ui->hueSpinBox, SIGNAL(valueChanged(int)),
+                this, SLOT(slotChangeHue(int)));
+    connect(d_ptr->m_ui->saturationSpinBox, SIGNAL(valueChanged(int)),
+                this, SLOT(slotChangeSaturation(int)));
+    connect(d_ptr->m_ui->valueSpinBox, SIGNAL(valueChanged(int)),
+                this, SLOT(slotChangeValue(int)));
+    connect(d_ptr->m_ui->alphaSpinBox, SIGNAL(valueChanged(int)),
+                this, SLOT(slotChangeAlpha(int)));
+
+    connect(d_ptr->m_ui->positionSpinBox, SIGNAL(valueChanged(double)),
+                this, SLOT(slotChangePosition(double)));
+
+    connect(d_ptr->m_ui->zoomSpinBox, SIGNAL(valueChanged(int)),
+                this, SLOT(slotChangeZoom(int)));
+    connect(d_ptr->m_ui->zoomInButton, SIGNAL(clicked()),
+                this, SLOT(slotZoomIn()));
+    connect(d_ptr->m_ui->zoomOutButton, SIGNAL(clicked()),
+                this, SLOT(slotZoomOut()));
+    connect(d_ptr->m_ui->zoomAllButton, SIGNAL(clicked()),
+                this, SLOT(slotZoomAll()));
+    connect(d_ptr->m_ui->gradientStopsWidget, SIGNAL(zoomChanged(double)),
+                this, SLOT(slotZoomChanged(double)));
+
+    connect(d_ptr->m_ui->hsvRadioButton, SIGNAL(clicked()),
+                this, SLOT(slotHsvClicked()));
+    connect(d_ptr->m_ui->rgbRadioButton, SIGNAL(clicked()),
+                this, SLOT(slotRgbClicked()));
+
+    d_ptr->enableCurrent(false);
+    d_ptr->m_ui->zoomInButton->setIcon(QIcon(QLatin1String(":/trolltech/qtgradienteditor/images/zoomin.png")));
+    d_ptr->m_ui->zoomOutButton->setIcon(QIcon(QLatin1String(":/trolltech/qtgradienteditor/images/zoomout.png")));
+    d_ptr->updateZoom(1);
+}
+
+QtGradientStopsController::~QtGradientStopsController()
+{
+}
+
+void QtGradientStopsController::setGradientStops(const QGradientStops &stops)
+{
+    d_ptr->m_model->clear();
+    QVectorIterator<QPair<qreal, QColor> > it(stops);
+    QtGradientStop *first = 0;
+    while (it.hasNext()) {
+        QPair<qreal, QColor> pair = it.next();
+        QtGradientStop *stop = d_ptr->m_model->addStop(pair.first, pair.second);
+        if (!first)
+            first = stop;
+    }
+    if (first)
+        d_ptr->m_model->setCurrentStop(first);
+}
+
+QGradientStops QtGradientStopsController::gradientStops() const
+{
+    QGradientStops stops;
+    QList<QtGradientStop *> stopsList = d_ptr->m_model->stops().values();
+    QListIterator<QtGradientStop *> itStop(stopsList);
+    while (itStop.hasNext()) {
+        QtGradientStop *stop = itStop.next();
+        stops << QPair<qreal, QColor>(stop->position(), stop->color());
+    }
+    return stops;
+}
+
+QColor::Spec QtGradientStopsController::spec() const
+{
+    return d_ptr->m_spec;
+}
+
+void QtGradientStopsController::setSpec(QColor::Spec spec)
+{
+    if (d_ptr->m_spec == spec)
+        return;
+
+    d_ptr->m_spec = spec;
+    if (d_ptr->m_spec == QColor::Rgb) {
+        d_ptr->m_ui->rgbRadioButton->setChecked(true);
+        d_ptr->slotRgbClicked();
+    } else {
+        d_ptr->m_ui->hsvRadioButton->setChecked(true);
+        d_ptr->slotHsvClicked();
+    }
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qtgradientstopscontroller.cpp"