closes #1: Favorite buttons has been extended with category buttons.
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5b5f31f64d
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//
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// Created by Josef Rokos on 03.05.2023.
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//
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#include "coloritemdelegate.h"
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#include <QPainter>
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#include <QApplication>
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#include <QPaintEvent>
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#include <QHBoxLayout>
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#include <QColorDialog>
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ColorLabel::ColorLabel(QWidget* parent) : QWidget(parent), m_color(Qt::white) {
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setAttribute(Qt::WA_StaticContents);
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setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Minimum);
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setFocusPolicy(Qt::NoFocus);
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}
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QColor ColorLabel::color() const {
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return m_color;
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}
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void ColorLabel::setColor(const QColor& color) {
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m_color = color;
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}
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QSize ColorLabel::sizeHint() const {
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return {20,20};
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}
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void ColorLabel::paintEvent(QPaintEvent* event) {
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QPainter painter(this);
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QStyle* style = QApplication::style();
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painter.save();
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painter.setBrush(m_color);
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bool dark = false;
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qreal darkness = 1-(0.299*m_color.red() + 0.587*m_color.green() + 0.114*m_color.blue())/255;
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if(darkness >= 0.5){
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dark = true;
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}
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QColor penColor = dark ? Qt::transparent : Qt::darkGray;
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painter.setPen(penColor);
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int border = (event->rect().height() - style->pixelMetric(QStyle::PM_IndicatorWidth))/2;
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QRect rect(event->rect().x()+border, event->rect().y()+border,
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style->pixelMetric(QStyle::PM_IndicatorWidth),
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style->pixelMetric(QStyle::PM_IndicatorWidth));// = option.rect.adjusted(4,4,-4,-6);
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painter.drawRect(rect);
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painter.restore();
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}
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ColorItemEditor::ColorItemEditor(QWidget* parent) : QWidget(parent), m_buttonPressed(false)
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{
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m_colorIndicator = new ColorLabel(this);
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m_colorIndicator->setColor(m_color);
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m_button = new QToolButton(this);
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m_button->setSizePolicy(QSizePolicy::Fixed,QSizePolicy::Fixed);
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m_button->setText("...");
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m_button->installEventFilter(this);
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QHBoxLayout* layout = new QHBoxLayout(this);
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layout->addWidget(m_colorIndicator);
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layout->addWidget(m_button);
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layout->setSpacing(0);
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layout->setContentsMargins(1,1,1,1);
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setFocusProxy(m_button);
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setAutoFillBackground(true);
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setLayout(layout);
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setAutoFillBackground(true);
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connect(m_button,SIGNAL(clicked()),this,SLOT(slotClicked()));
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}
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void ColorItemEditor::setColor(const QColor& value) {
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m_color = value;
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m_colorIndicator->setColor(value);
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}
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bool ColorItemEditor::eventFilter(QObject* obj, QEvent* event) {
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if (obj == m_button){
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if (event->type() == QEvent::FocusOut && !m_buttonPressed){
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auto focusEvent = dynamic_cast<QFocusEvent*>(event);
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if (focusEvent && focusEvent->reason()!=Qt::MouseFocusReason){
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setFocusToParent();
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emit(editingFinished());
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}
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return false;
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}
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}
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return false;
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}
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void ColorItemEditor::setFocusToParent() {
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if (parentWidget()) {
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parentWidget()->setFocus();
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}
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}
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void ColorItemEditor::slotClicked() {
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m_buttonPressed = true;
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auto dialog = new QColorDialog(this);
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dialog->setCurrentColor(m_color);
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if (dialog->exec()) {
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setColor(dialog->currentColor());
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}
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delete dialog;
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setFocusToParent();
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emit(editingFinished());
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}
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ColorItemDelegate::ColorItemDelegate(QObject* parent) : QStyledItemDelegate(parent) {
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}
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void ColorItemDelegate::paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const {
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QColor color(index.data().toString());
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if (color.isValid()) {
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painter->save();
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painter->setBrush(color);
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QRect rect(option.rect.x(), option.rect.y(), option.rect.width(), option.rect.height());
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painter->drawRect(rect);
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painter->restore();
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} else {
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QStyledItemDelegate::paint(painter, option, index);
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}
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}
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QSize ColorItemDelegate::sizeHint(const QStyleOptionViewItem& option, const QModelIndex& index) const {
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return QStyledItemDelegate::sizeHint(option, index);
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}
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QWidget* ColorItemDelegate::createEditor(QWidget* parent, const QStyleOptionViewItem& option, const QModelIndex& index) const {
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QColor color(index.data().toString());
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if (!color.isValid()) {
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color = QColorConstants::Gray;
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}
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auto editor = new ColorItemEditor(parent);
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editor->setColor(color);
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connect(editor, &ColorItemEditor::editingFinished, this, &ColorItemDelegate::commitAndCloseEditor);
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return editor;
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}
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void ColorItemDelegate::commitAndCloseEditor() {
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auto editor = qobject_cast<ColorItemEditor*>(sender());
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emit commitData(editor);
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emit closeEditor(editor);
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}
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void ColorItemDelegate::setEditorData(QWidget* editor, const QModelIndex& index) const {
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auto edit = qobject_cast<ColorItemEditor*>(editor);
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QColor color(index.data().toString());
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if (edit && color.isValid()) {
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edit->setColor(color);
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} else {
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QStyledItemDelegate::setEditorData(editor, index);
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}
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}
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void ColorItemDelegate::setModelData(QWidget* editor, QAbstractItemModel* model, const QModelIndex& index) const {
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auto edit = qobject_cast<ColorItemEditor*>(editor);
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if (edit) {
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model->setData(index, edit->color().name());
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} else {
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QStyledItemDelegate::setModelData(editor, model, index);
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}
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}
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@ -0,0 +1,64 @@
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//
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// Created by Josef Rokos on 03.05.2023.
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//
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#ifndef COLORITEMDELEGATE_H
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#define COLORITEMDELEGATE_H
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#include <QStyledItemDelegate>
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#include <QToolButton>
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class ColorItemDelegate : public QStyledItemDelegate {
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Q_OBJECT
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public:
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explicit ColorItemDelegate(QObject* parent = nullptr);
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~ColorItemDelegate() override = default;
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void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
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QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const override;
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QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
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void setEditorData(QWidget *editor, const QModelIndex &index) const override;
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void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const override;
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private slots:
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void commitAndCloseEditor();
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};
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class ColorLabel : public QWidget{
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Q_OBJECT
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public:
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explicit ColorLabel(QWidget* parent = nullptr);
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QColor color() const;
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void setColor(const QColor &color);
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QSize sizeHint() const override;
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protected:
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void paintEvent(QPaintEvent *event) override;
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private:
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QColor m_color;
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};
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class ColorItemEditor : public QWidget
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{
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Q_OBJECT
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public:
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explicit ColorItemEditor(QWidget *parent = nullptr);
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QColor color(){return m_color;}
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void setColor(const QColor& value);
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protected:
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bool eventFilter(QObject *obj, QEvent *event) override;
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private:
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void setFocusToParent();
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signals:
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void editingFinished();
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private slots:
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void slotClicked();
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private:
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QColor m_color;
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QToolButton* m_button;
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ColorLabel* m_colorIndicator;
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bool m_buttonPressed;
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};
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#endif //COLORITEMDELEGATE_H
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