File indexing completed on 2024-04-14 04:47:27

 /*
     SPDX-FileCopyrightText: 2010 Till Theato <root@ttill.de>
 
 SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
 */
 
 #pragma once
 
 #include <QFrame>
 #include <QPoint>
 #include <QWidget>
 
 class QFrame;
 #ifdef Q_WS_X11
 #include <X11/Xlib.h>
 #endif
 
 class MyFrame : public QFrame
 {
     Q_OBJECT
 public:
     explicit MyFrame(QWidget *parent = nullptr);
 
 protected:
     void hideEvent(QHideEvent *event) override;
 
 Q_SIGNALS:
     void getColor();
 };
 
 /** @class ColorPickerWidget
     @brief A widget to pick a color anywhere on the screen.
     The code is partially based on the color picker in KColorDialog.
     @author Till Theato
  */
 class ColorPickerWidget : public QWidget
 {
     Q_OBJECT
 
 public:
     /** @brief Sets up the widget. */
     explicit ColorPickerWidget(QWidget *parent = nullptr);
     /** @brief Makes sure the event filter is removed. */
     ~ColorPickerWidget() override;
 
 protected:
     void mousePressEvent(QMouseEvent *event) override;
     void mouseReleaseEvent(QMouseEvent *event) override;
     void mouseMoveEvent(QMouseEvent *event) override;
     bool eventFilter(QObject *object, QEvent *event) override;
     void paintEvent(QPaintEvent *event) override;
 
 private:
     /** @brief Closes the event filter and makes mouse and keyboard work again on other widgets/windows. */
     void closeEventFilter();
 
     /** @brief Color of the screen at point @param p.
     * @param p Position of color requested
     * @param destroyImage (optional) Whether or not to keep the XImage in m_image
                           (needed for fast processing of rects) */
     QColor grabColor(const QPoint &p, bool destroyImage = true);
 
     bool m_filterActive{false};
     bool m_useDBus{true};
     QRect m_grabRect;
     QPoint m_clickPoint;
     QFrame *m_grabRectFrame;
     QColor m_mouseColor;
 #ifdef Q_WS_X11
     XImage *m_image;
 #else
     QImage m_image;
 #endif
 
 private Q_SLOTS:
     /** @brief Sets up an event filter for picking a color. */
     void slotSetupEventFilter();
 
     /** @brief Calculates the average color for the pixels in the rect m_grabRect and emits colorPicked. */
     void slotGetAverageColor();
 
     /** @brief Send a DBus message to the Freedesktop portal to request a color picker operation */
     void grabColorDBus();
     /** @brief To be called by the DBus connection when a response comes in */
     void gotColorResponse(uint response, const QVariantMap &results);
 
 Q_SIGNALS:
     /** @brief Signal fired when a new color has been picked */
     void colorPicked(const QColor &);
     /** @brief When user wants to pick a color, it's better to disable filter so we get proper color values. */
     void disableCurrentFilter(bool);
 };