71 lines
2.0 KiB
C++
71 lines
2.0 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 <https://www.gnu.org/licenses/>.
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*/
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#ifndef _COLORPROVIDER_
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#define _COLORPROVIDER_
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#include <gtkmm.h>
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class ColorProvider;
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/*
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* The ColorCaller is the class that will query the ColorProvider
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*/
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class ColorCaller
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{
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protected:
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// a class can handle several ColorCaller;
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// colorCallerId will let the provider identify the caller
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int colorCallerId;
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ColorProvider* colorProvider;
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public:
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enum ElemType {
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CCET_POINT,
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CCET_VERTICAL_BAR,
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CCET_HORIZONTAL_BAR,
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CCET_BACKGROUND
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};
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double ccRed;
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double ccGreen;
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double ccBlue;
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ColorCaller() : colorCallerId(-1), colorProvider(nullptr), ccRed(0.), ccGreen(0.), ccBlue(0.) {}
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void setColorProvider (ColorProvider* p, int id)
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{
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colorProvider = p;
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colorCallerId = id;
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}
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};
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/*
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* Use it to let your widget feed a colored bar or graph lines with the wanted colors
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* If you doesn't need to dynamically feed a widget with colors (e.g. curve's graph),
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* you don't need to declare the instanciator class as BEING a ColorProvider, you'll
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* still be able to set gradients for e.g. ColoredBar(s)
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*/
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class ColorProvider
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{
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public:
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virtual ~ColorProvider() {};
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virtual void colorForValue (double valX, double valY, enum ColorCaller::ElemType elemType, int callerId, ColorCaller* caller) {};
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};
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#endif
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