103 lines
2.7 KiB
C++
103 lines
2.7 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 _HISTOGRAMPANEL_
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#define _HISTOGRAMPANEL_
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#include <gtkmm.h>
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#include <glibmm.h>
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class HistogramArea;
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struct HistogramAreaIdleHelper {
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HistogramArea* harea;
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bool destroyed;
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int pending;
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};
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class HistogramArea : public Gtk::DrawingArea {
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protected:
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Glib::RefPtr<Gdk::GC> gc_;
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Glib::RefPtr<Gdk::Pixmap> backBuffer;
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Gdk::Color black;
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Gdk::Color white;
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Gdk::Color red;
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Gdk::Color green;
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Gdk::Color blue;
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Gdk::Color lgray;
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Gdk::Color mgray;
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Gdk::Color dgray;
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unsigned int lhist[256];
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unsigned int rhist[256];
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unsigned int ghist[256];
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unsigned int bhist[256];
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bool valid;
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bool showFull;
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int oldwidth, oldheight;
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bool needVal;
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bool needRed;
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bool needGreen;
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bool needBlue;
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HistogramAreaIdleHelper* haih;
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public:
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HistogramArea();
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~HistogramArea();
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void renderHistogram ();
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void update (unsigned int* rh, unsigned int* gh, unsigned int* bh, unsigned int* lh);
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void updateOptions (bool r, bool g, bool b, bool v);
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void on_realize();
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bool on_expose_event(GdkEventExpose* event);
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bool on_button_press_event (GdkEventButton* event);
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void styleChanged (const Glib::RefPtr<Gtk::Style>& style);
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private:
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void drawCurve(Cairo::RefPtr<Cairo::Context> &cr,
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unsigned int * data, double scale, int hsize, int vsize);
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void drawMarks(Cairo::RefPtr<Cairo::Context> &cr,
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unsigned int * data, double scale, int hsize, int & ui, int & oi);
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};
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class HistogramPanel : public Gtk::HBox {
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protected:
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HistogramArea* histogramArea;
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Gtk::ToggleButton* showRed;
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Gtk::ToggleButton* showGreen;
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Gtk::ToggleButton* showBlue;
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Gtk::ToggleButton* showValue;
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sigc::connection rconn;
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public:
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HistogramPanel ();
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void histogramChanged (unsigned int* rh, unsigned int* gh, unsigned int* bh, unsigned int* lh) { histogramArea->update (rh, gh, bh, lh); }
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void rgbv_toggled ();
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void resized (Gtk::Allocation& req);
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};
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#endif
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