[seiscomp, scanloc] Install, add .gitignore
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include/seiscomp/gui/core/ruler.h
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209
include/seiscomp/gui/core/ruler.h
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/***************************************************************************
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* Copyright (C) gempa GmbH *
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* All rights reserved. *
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* Contact: gempa GmbH (seiscomp-dev@gempa.de) *
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* *
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* GNU Affero General Public License Usage *
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* This file may be used under the terms of the GNU Affero *
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* Public License version 3.0 as published by the Free Software Foundation *
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* and appearing in the file LICENSE included in the packaging of this *
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* file. Please review the following information to ensure the GNU Affero *
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* Public License version 3.0 requirements will be met: *
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* https://www.gnu.org/licenses/agpl-3.0.html. *
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* *
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* Other Usage *
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* Alternatively, this file may be used in accordance with the terms and *
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* conditions contained in a signed written agreement between you and *
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* gempa GmbH. *
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***************************************************************************/
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#ifndef SEISCOMP_GUI_RULER_H
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#define SEISCOMP_GUI_RULER_H
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#include <seiscomp/gui/qt.h>
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#include <QFrame>
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namespace Seiscomp {
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namespace Gui {
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class SC_GUI_API Ruler : public QFrame
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{
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Q_OBJECT
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public:
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enum Position { Bottom, Top, Left, Right };
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Ruler(QWidget* = 0, Qt::WindowFlags f = Qt::WindowFlags(), Position pos = Bottom);
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~Ruler() {}
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void setPosition(Position, bool allowLabelTextRotation = false);
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void setReverseDirection(bool reverse);
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void setRange(double, double);
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void setLimits(double leftValue, double rightValue, double minRange, double maxRange);
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void setScale(double);
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bool setSelected(double, double);
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bool setSelectionHandle(int handle, double pos);
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bool setSelectionHandleEnabled(int handle, bool enable);
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void setAnnot(double = -1); // -1 is "auto", 0 is none
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void setTicks(double = -1); // -1 is "auto", 0 is none
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void setSelectionHandleCount(int);
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bool isSelectionEnabled() const { return _enableSelection; }
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int selectionHandleCount() const;
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double selectionHandlePos(int) const;
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void setWheelEnabled(bool scale, bool translate);
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double minimumRange() const { return _min; }
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double maximumRange() const { return _max; }
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double minimumSelection() const;
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double maximumSelection() const;
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double scale() const { return _scl; }
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double pixelPerUnit() const { return _scl; }
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double dA() const { return _drx[0]; }
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double dT() const { return _drx[1]; }
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double dOfs() const { return _ofs; }
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virtual QSize sizeHint() const;
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//! Functions for position independent drawing
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int rulerWidth() const { return isHorizontal() ? width() : height(); }
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int rulerHeight() const { return isHorizontal() ? height() : width(); }
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bool isBottom() const { return _position == Bottom; }
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bool isTop() const { return _position == Top; }
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bool isLeft() const { return _position == Left; }
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bool isRight() const { return _position == Right; }
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bool isHorizontal() const { return isBottom() || isTop(); }
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bool isVertical() const { return !isHorizontal(); }
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public slots:
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void showRange(double, double);
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void translate(double);
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void setAutoScaleEnabled(bool);
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void setSelectionEnabled(bool);
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void setRangeSelectionEnabled(
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bool enabled,
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bool emitRangeChangeWhileDragging = false
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);
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void changed(int pos = -1);
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signals:
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void scaleChanged(double);
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void changedSelection(double, double);
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void selectionHandleMoved(int handle, double pos, Qt::KeyboardModifiers);
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void selectionHandleMoveFinished();
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void changedInterval(double dA, double dT, double ofs);
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void dragged(double diffTime);
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void dragStarted();
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void dragFinished();
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void rangeChangeRequested(double tmin, double tmax);
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protected:
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void paintEvent(QPaintEvent*);
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void mousePressEvent(QMouseEvent*);
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void mouseReleaseEvent(QMouseEvent*);
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void mouseMoveEvent(QMouseEvent*);
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void wheelEvent(QWheelEvent*);
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void resizeEvent(QResizeEvent*);
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//! Should be reimplemented in derived classes to
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//! customize the displayed string. str holds the string
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//! used for displaying and value describes the position
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//! on the ruler.
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virtual bool getTickText(double pos, double lastPos,
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int line, QString &str) const;
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virtual void updateIntervals();
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void enterEvent(QEvent *e);
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void leaveEvent(QEvent *e);
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void setLineCount(int lines, int spacing = 4);
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virtual void drawSelection(QPainter &p);
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void drawRangeSelection(QPainter &p);
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//! Converts ruler position to point in widget coordinates, rx is the
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//! position on the ruler, ry the distance from the rulers baseline
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QPoint r2wPos(int rx, int ry) const;
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//! Converts widget coordinates to ruler position
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QPoint w2rPos(int x, int y) const;
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//! Converts ruler rectangle to rectangle in widget coordinates.
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//! rx is the position on the ruler, ry the distance from the rulers
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//! baseline
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QRect r2wRect(int rx, int ry, int rw, int rh) const;
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//! Draws text at the specified ruler position (rx) with
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//! the specified distance (ry) from the rulers baseline.
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//! If allowRotate is set to 'true' the text is rotated
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//! by 90 degrees if the ruler is in a vertical mode.
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bool rulerDrawText(QPainter &p, int rx, int ry,
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const QString &text, bool allowClip = false,
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bool allowRotate = false) const;
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bool rulerDrawTextAtLine(QPainter &p, int rx, int line,
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const QString &text, bool allowClip = false,
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bool allowRotate = false) const;
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void checkLimit(double &tmin, double &tmax);
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void changeRange(double tmin, double tmax);
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protected:
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struct Handle {
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Handle() : enabled(true) {}
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double pos;
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bool enabled;
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bool operator<(const Handle &other) const {
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return pos < other.pos;
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}
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};
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Position _position;
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double _ofs{0};
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double _scl{1.0},
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_min{0}, _max{0}, // ruler range
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_da{-1}, // annotation interval
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_dt{-1}, // tick mark interval
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_limitLeft, _limitRight,
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_limitMinRange, _limitMaxRange;
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int _pos{0}, _tickLong, _tickShort, _lc, _lineSpacing;
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QVector<Handle> _selectionHandles;
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int _currentSelectionHandle{-1};
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double _drx[2]; // current intervals
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int _dragMode{0};
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double _dragStart;
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int _iDragStart;
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int _rangemin{0}, _rangemax{0};
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bool _rangeValid;
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bool _enableSelection;
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bool _enableRangeSelection{false};
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bool _enableLabelRotation{false};
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bool _leftToRight{true}; // Or bottomToTop
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bool _emitRangeChangeWhileDragging{false};
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bool _hover{false};
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bool _wheelScale{true};
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bool _wheelTranslate{true};
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bool _autoScale{false};
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};
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} // ns Gui
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} // ns Seiscomp
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# endif // _RULER_H_
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