rawTherapee/rtgui/mycurve.h
Hombre 28feec5dd9 Enhanced curve editor :
- graphical celan up (surrounding frame deleted, histogram realigned)
- a feedback tell what point is going to move
- on Button press, the point doesn't move to the cursor anymore. Instead, the cursor
  is hidden during the drag and reappear in the same place it disappeared
- by default, a 0.5 factor is used to move the point during the drag
  (i.e. you have to move the move of 2 pixel to move the point of one pixel)
- keyboard can be used to fine tune the point position (subpixel placement) :
   - CTRL : factor = 0.1
   - SHIFT : factor = 0.02
   - CTRL+SHIFT : factor = 0.005

In the mean time, i had to create a new "Empty" cursor to hide it.
A new method has been created to easily modify the cursor of the main window.
2010-07-05 14:54:34 +02:00

89 lines
2.8 KiB
C++

/*
* This file is part of RawTherapee.
*
* Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
*
* RawTherapee is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* RawTherapee is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with RawTherapee. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _MYCURVE_
#define _MYCURVE_
#include <gtkmm.h>
#include <vector>
#include <curvelistener.h>
#include <cursormanager.h>
#define RADIUS 3 /* radius of the control points. Assuming that the center of the spot is in the center of the pixel, the real RADIUS will be this value +0.5 */
#define MIN_DISTANCE 8 /* min distance between control points */
#define GRAPH_SIZE 200 /* size of the curve editor graphic */
enum CurveType {Linear, Spline, Parametric};
class CurveDescr {
public:
CurveType type;
std::vector<double> x, y; // in case of parametric curves the curve parameters are stored in vector x. In other cases these vectors store the coordinates of the bullets.
};
class MyCurve;
struct MyCurveIdleHelper {
MyCurve* myCurve;
bool destroyed;
int pending;
};
class MyCurve : public Gtk::DrawingArea {
friend int mchistupdate (void* data);
protected:
CurveListener* listener;
CurveDescr curve;
CursorShape cursor_type;
Glib::RefPtr<Gdk::Pixmap> pixmap;
int height;
int grab_point;
int lit_point;
int last;
std::vector<Gdk::Point> point;
std::vector<Gdk::Point> upoint;
std::vector<Gdk::Point> lpoint;
int activeParam;
unsigned int bghist[256];
bool bghistvalid;
MyCurveIdleHelper* mcih;
int cursor_x, cursor_y;
double ugp_x, ugp_y; // unclamped grabed point coordinates
void draw (int width, int height, int handle);
void interpolate (int width, int height);
std::vector<double> get_vector (int veclen);
public:
MyCurve ();
~MyCurve ();
void setCurveListener (CurveListener* cl) { listener = cl; }
std::vector<double> getPoints ();
void setPoints (const std::vector<double>& p);
void setType (CurveType t);
bool handleEvents (GdkEvent* event);
void notifyListener ();
void setActiveParam (int ac);
void updateBackgroundHistogram (unsigned int* hist);
};
#endif