rawTherapee/rtgui/previewhandler.h
Hombre 8b2eac9a3d Pipette and "On Preview Widgets" branch. See issue 227
The pipette part is already working quite nice but need to be finished. The widgets part needs more work...
2014-01-21 23:37:36 +01:00

78 lines
2.6 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 _PREVIEWHANDLER_
#define _PREVIEWHANDLER_
#include "../rtengine/rtengine.h"
#include "threadutils.h"
#include <gtkmm.h>
#include <list>
class PreviewListener {
public:
virtual ~PreviewListener () {}
virtual void previewImageChanged () {}
};
class PreviewHandler;
struct PreviewHandlerIdleHelper {
PreviewHandler* phandler;
bool destroyed;
int pending;
};
class PreviewHandler : public rtengine::PreviewImageListener {
friend int setImageUI (void* data);
friend int delImageUI (void* data);
friend int imageReadyUI (void* data);
protected:
rtengine::IImage8* image;
rtengine::procparams::CropParams cropParams;
double previewScale;
PreviewHandlerIdleHelper* pih;
std::list<PreviewListener*> listeners;
MyMutex previewImgMutex;
Glib::RefPtr<Gdk::Pixbuf> previewImg;
public:
PreviewHandler ();
virtual ~PreviewHandler ();
void addPreviewImageListener (PreviewListener* l) { listeners.push_back (l); }
// previewimagelistener
void setImage (rtengine::IImage8* img, double scale, rtengine::procparams::CropParams cp);
void delImage (rtengine::IImage8* img);
void imageReady (rtengine::procparams::CropParams cp);
// this function is called when a new preview image arrives from rtengine
void previewImageChanged ();
// with this function it is possible to ask for a rough approximation of a (possibly zoomed) crop of the image
Glib::RefPtr<Gdk::Pixbuf> getRoughImage (int x, int y, int w, int h, double zoom);
Glib::RefPtr<Gdk::Pixbuf> getRoughImage (int desiredW, int desiredH, double& zoom);
rtengine::procparams::CropParams getCropParams () { return cropParams; }
};
#endif