249 lines
9.8 KiB
C++
249 lines
9.8 KiB
C++
/*
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* This file is part of RawTherapee.
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*
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* Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
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*
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* RawTherapee is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* RawTherapee is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with RawTherapee. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _THRESHOLDSELECTOR_
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#define _THRESHOLDSELECTOR_
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#include "guiutils.h"
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#include "../rtengine/procparams.h"
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#include "coloredbar.h"
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#include <iomanip>
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class ThresholdSelector;
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/*
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* This class let the instanciator to provide the background curve
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*/
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class ThresholdCurveProvider
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{
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public:
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virtual ~ThresholdCurveProvider() {};
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/*
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* The curve provider has to send back a list of point (at least 2 points) in the [0.0 ; 1.0] range
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* for both X and Y axis; X and Y values are streamlined ( X1, Y1, X2, Y2, X3, Y3, ...)
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*/
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virtual std::vector<double> getCurvePoints(ThresholdSelector* tAdjuster) const = 0;
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};
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/*
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* This widget will let you select a linearly variable threshold, creating a ramp up
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* if you want to go from a null effect to a full effect
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* 0-0-ramp up-1-1
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* or a ramp down if you want the contrary
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* 1-1-ramp down-0-0
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*
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* You can optionally create a double threshold
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* 0-0-ramp up-1-1-ramp down-0-0
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* or
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* 1-1-ramp down-0-0-ramp up-1-1
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*
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* Please note that the values are related to the cursors, depending on their position
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* on the graph. E.g. the "bottomLeft" value is related to the bottom left cursor.
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*
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* It is also possible to have a threshold with 2 totally independent cursors, each one having his own range,
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* min/max/default values and precision. This let developers create their own threshold curve, that they will
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* have to provide through the ThresholdCurveProvider interface
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*
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*/
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class ThresholdSelector : public Gtk::DrawingArea, public ColoredBar
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{
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public:
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enum ThreshCursorId {
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TS_UNDEFINED = -1,
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TS_BOTTOMLEFT,
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TS_TOPLEFT,
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TS_BOTTOMRIGHT,
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TS_TOPRIGHT
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};
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protected:
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sigc::signal<void> sig_val_changed;
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ThresholdCurveProvider* bgCurveProvider;
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Glib::ustring additionalTTip;
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Glib::ustring separatedLabelBottom; // Label for the bottom cursor, displayed if separatedSliders==true only
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Glib::ustring separatedLabelTop; // Label for the top cursor, displayed if separatedSliders==true only
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bool separatedSliders; // If true, the Top and Bottom sliders are totally separate and can be drag through the full range; for simple threshold only!
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bool doubleThresh; // If true: there curve is a double threshold (0 to 1 to 0, or 1 to 0 to 1).
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bool initalEq1; // If true: the curve start at 1 (top); if false: the curve start at 0 (bottom)
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unsigned int precisionTop; // Decimal number if this object has to handle "double" values, for the Top slider
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unsigned int precisionBottom; // Decimal number if this object has to handle "double" values, for the Bottom slider
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ThreshCursorId litCursor;
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ThreshCursorId oldLitCursor;
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double boundary1[2], boundary2[2];
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double tmpX, tmpPos;
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ThreshCursorId movedCursor, secondaryMovedCursor;
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double minValTop, maxValTop;
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double minValBottom, maxValBottom;
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double defPos[4];
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double positions[4];
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eUpdatePolicy updatePolicy;
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const static int hb = 3; // horizontal border
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const static int vb = 0; // vertical border
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void initValues ();
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void findLitCursor(int posX, int posY);
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void findSecondaryMovedCursor(guint state);
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void findBoundaries(double &min, double &max);
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double to01(ThreshCursorId cursorId);
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void updateTooltip();
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Gtk::SizeRequestMode get_request_mode_vfunc () const;
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void get_preferred_height_vfunc (int& minimum_height, int& natural_height) const;
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void get_preferred_width_vfunc (int &minimum_width, int &natural_width) const;
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void get_preferred_height_for_width_vfunc (int width, int &minimum_height, int &natural_height) const;
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void get_preferred_width_for_height_vfunc (int width, int &minimum_width, int &natural_width) const;
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void on_realize ();
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bool on_draw(const ::Cairo::RefPtr< Cairo::Context> &cr);
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bool on_button_press_event (GdkEventButton* event);
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bool on_button_release_event (GdkEventButton* event);
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bool on_motion_notify_event (GdkEventMotion* event);
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bool on_leave_notify_event (GdkEventCrossing* event);
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public:
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sigc::signal<void> signal_value_changed();
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ThresholdSelector(double minValueBottom, double maxValueBottom, double defBottom, Glib::ustring labelBottom, unsigned int precisionBottom,
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double minValueTop, double maxValueTop, double defTop, Glib::ustring labelTop, unsigned int precisionTop,
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ThresholdCurveProvider* curveProvider);
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ThresholdSelector(double minValue, double maxValue, double defBottom, double defTop, unsigned int precision, bool startAtOne);
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ThresholdSelector(double minValue, double maxValue, double defBottomLeft, double defTopLeft, double defBottomRight, double defTopRight, unsigned int precision, bool startAtOne);
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double shapePositionValue (ThreshCursorId cursorId);
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template <typename T>
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void setDefaults (const rtengine::procparams::Threshold<T> &t)
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{
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defPos[TS_BOTTOMLEFT] = double(t.value[0]); // should we use shapeValue() ?
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defPos[TS_TOPLEFT] = double(t.value[1]);
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if (doubleThresh) {
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defPos[TS_BOTTOMRIGHT] = double(t.value[2]);
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defPos[TS_TOPRIGHT] = double(t.value[3]);
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}
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}
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void setDefaults (double bottom, double top);
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void setDefaults (double bottomLeft, double topLeft, double bottomRight, double topRight);
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template <typename T>
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void setPositions (const rtengine::procparams::Threshold<T> &tValues)
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{
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positions[TS_BOTTOMLEFT] = static_cast<double>(tValues.value[TS_BOTTOMLEFT]);
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positions[TS_TOPLEFT] = static_cast<double>(tValues.value[TS_TOPLEFT]);
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if (tValues.isDouble()) {
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positions[TS_BOTTOMRIGHT] = static_cast<double>(tValues.value[TS_BOTTOMRIGHT]);
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positions[TS_TOPRIGHT] = static_cast<double>(tValues.value[TS_TOPRIGHT]);
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}
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updateTooltip();
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queue_draw();
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}
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void setPositions (double bottom, double top);
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void setPositions (double bottomLeft, double topLeft, double bottomRight, double topRight);
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template <typename T>
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rtengine::procparams::Threshold<T> getPositions ()
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{
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if (doubleThresh) {
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rtengine::procparams::Threshold<T> rThresh(
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static_cast<T>(shapePositionValue(TS_BOTTOMLEFT)),
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static_cast<T>(shapePositionValue(TS_TOPLEFT)),
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static_cast<T>(shapePositionValue(TS_BOTTOMRIGHT)),
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static_cast<T>(shapePositionValue(TS_TOPRIGHT)),
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initalEq1
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);
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return rThresh;
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} else {
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rtengine::procparams::Threshold<T> rThresh(
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static_cast<T>(shapePositionValue(TS_BOTTOMLEFT)),
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static_cast<T>(shapePositionValue(TS_TOPLEFT)),
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initalEq1
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);
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return rThresh;
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}
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}
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template <typename T>
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void getPositions (T &bottom, T &top)
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{
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bottom = static_cast<T>(shapePositionValue(TS_BOTTOMLEFT));
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top = static_cast<T>(shapePositionValue(TS_TOPLEFT));
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}
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template <typename T>
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void getPositions (T &bottomLeft, T &topLeft, T &bottomRight, T &topRight)
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{
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bottomLeft = static_cast<T>(shapePositionValue(TS_BOTTOMLEFT));
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topLeft = static_cast<T>(shapePositionValue(TS_TOPLEFT));
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bottomRight = static_cast<T>(shapePositionValue(TS_BOTTOMRIGHT));
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topRight = static_cast<T>(shapePositionValue(TS_TOPRIGHT));
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}
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void setSeparatedSliders(bool separated);
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bool getSeparatedSliders();
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void setBgCurveProvider (ThresholdCurveProvider* provider);
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bool isStartAtOne()
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{
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return initalEq1;
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}
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bool isDouble()
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{
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return doubleThresh;
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}
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void styleChanged (const Glib::RefPtr<Gtk::Style>& style);
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unsigned int getPrecision ()
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{
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return precisionTop;
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}
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void reset ();
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void setUpdatePolicy (eUpdatePolicy policy)
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{
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updatePolicy = policy;
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}
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void set_tooltip_markup(const Glib::ustring& markup);
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// this set_tooltip_text method is to set_tooltip_markup, and text can contain markups
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void set_tooltip_text(const Glib::ustring& text);
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};
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template<>
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inline void ThresholdSelector::getPositions<Glib::ustring> (Glib::ustring& bottom, Glib::ustring& top)
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{
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bottom = Glib::ustring::format(std::fixed, std::setprecision(precisionBottom), shapePositionValue(TS_BOTTOMLEFT));
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top = Glib::ustring::format(std::fixed, std::setprecision(precisionTop), shapePositionValue(TS_TOPLEFT));
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}
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template<>
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inline void ThresholdSelector::getPositions<Glib::ustring> (Glib::ustring& bottomLeft, Glib::ustring& topLeft, Glib::ustring& bottomRight, Glib::ustring& topRight)
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{
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bottomLeft = Glib::ustring::format(std::fixed, std::setprecision(precisionBottom), shapePositionValue(TS_BOTTOMLEFT));
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topLeft = Glib::ustring::format(std::fixed, std::setprecision(precisionTop), shapePositionValue(TS_TOPLEFT));
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bottomRight = Glib::ustring::format(std::fixed, std::setprecision(precisionBottom), shapePositionValue(TS_BOTTOMRIGHT));
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topRight = Glib::ustring::format(std::fixed, std::setprecision(precisionTop), shapePositionValue(TS_TOPRIGHT));
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}
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#endif
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