File indexing completed on 2024-04-28 04:30:20 

0001 /*
0002     SPDX-FileCopyrightText: 2000-2008 Till Krech <till@snafu.de>
0003     SPDX-FileCopyrightText: 2009 Mathias Soeken <msoeken@tzi.de>
0004     SPDX-FileCopyrightText: 2017 Aurélien Gâteau <agateau@kde.org>
0005 
0006     SPDX-License-Identifier: GPL-2.0-or-later
0007 */
0008 
0009 #ifndef KLINEAL_H
0010 #define KLINEAL_H
0011 
0012 #include <QWidget>
0013 
0014 class QAction;
0015 class QIcon;
0016 class QMenu;
0017 
0018 class KActionCollection;
0019 class KRulerSystemTray;
0020 
0021 class KLineal : public QWidget
0022 {
0023     Q_OBJECT
0024 
0025 public:
0026     explicit KLineal(QWidget *parent = nullptr);
0027     ~KLineal() override;
0028 
0029     void move(int x, int y);
0030     void move(const QPoint &p);
0031     QPoint pos() const;
0032     int x() const;
0033     int y() const;
0034 
0035 protected:
0036     void keyPressEvent(QKeyEvent *e) override;
0037     void leaveEvent(QEvent *e) override;
0038     void mousePressEvent(QMouseEvent *e) override;
0039     void mouseMoveEvent(QMouseEvent *e) override;
0040     void wheelEvent(QWheelEvent *e) override;
0041     void paintEvent(QPaintEvent *e) override;
0042 
0043     void createSystemTray();
0044 
0045 private:
0046     void createCrossCursor();
0047     QAction *addAction(QMenu *menu,
0048                        const QIcon &icon,
0049                        const QString &text,
0050                        const QObject *receiver,
0051                        const char *member,
0052                        const QKeySequence &shortcut,
0053                        const QString &name);
0054     void drawScale(QPainter &painter);
0055     void drawBackground(QPainter &painter);
0056     void drawScaleText(QPainter &painter, int x, const QString &text);
0057     void drawScaleTick(QPainter &painter, int x, int length);
0058     void drawResizeHandle(QPainter &painter, Qt::Edge edge);
0059     void drawIndicatorOverlay(QPainter &painter, int xy);
0060     void drawIndicatorText(QPainter &painter, int xy);
0061     void updateScaleDirectionMenuItem();
0062 
0063     QRect beginRect() const;
0064     QRect endRect() const;
0065     Qt::CursorShape resizeCursor() const;
0066     QString indicatorText(int xy) const;
0067 
0068     QCursor mCrossCursor;
0069     QPoint mCursorPos; // cached cursor pos used between painEvent <-> mouseMoveEvents
0070     QPoint mLastClickGlobalPos;
0071     bool mHorizontal = false;
0072     QMenu *mMenu = nullptr;
0073     QAction *mCloseAction = nullptr;
0074     QAction *mScaleDirectionAction = nullptr;
0075     QAction *mCenterOriginAction = nullptr;
0076     QAction *mOffsetAction = nullptr;
0077     QColor mColor;
0078     QFont mScaleFont;
0079     bool mAlwaysOnTopLayer = false;
0080     bool middleClicked = false;
0081     bool mLeftToRight = false;
0082     int mOffset = 0;
0083     bool mRelativeScale = false;
0084     KActionCollection *mActionCollection = nullptr;
0085     int mOpacity = 0;
0086     KRulerSystemTray *mTrayIcon = nullptr;
0087 
0088     void setHorizontal(bool horizontal);
0089 
0090     int length() const;
0091     qreal pixelRatio() const;
0092 
0093 public Q_SLOTS:
0094     void rotate();
0095     void showMenu();
0096     void switchDirection();
0097     void centerOrigin();
0098     void slotOffset();
0099     void slotOpacity(int value);
0100     void slotKeyBindings();
0101     void slotPreferences();
0102     void switchRelativeScale(bool checked);
0103     void saveSettings();
0104     void slotClose();
0105     void loadConfig();
0106 };
0107 #endif