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...
This commit is contained in:
Hombre
225
rtgui/previewhandler.cc
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225
rtgui/previewhandler.cc
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/*
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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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#include "previewhandler.h"
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#include <gtkmm.h>
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#include "../rtengine/rtengine.h"
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using namespace rtengine;
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using namespace rtengine::procparams;
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PreviewHandler::PreviewHandler () : image(NULL), previewScale(1.) {
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pih = new PreviewHandlerIdleHelper;
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pih->phandler = this;
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pih->destroyed = false;
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pih->pending = 0;
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}
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PreviewHandler::~PreviewHandler () {
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if (pih->pending)
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pih->destroyed = true;
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else
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delete pih;
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}
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//----------------previewimagelistener functions--------------------
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struct iaimgpar {
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IImage8* image;
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PreviewHandlerIdleHelper* pih;
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double scale;
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CropParams cp;
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};
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int setImageUI (void* data) {
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iaimgpar* iap = static_cast<iaimgpar*>(data);
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PreviewHandlerIdleHelper* pih = iap->pih;
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if (pih->destroyed) {
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if (pih->pending == 1)
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delete pih;
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else
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pih->pending--;
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delete iap;
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return 0;
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}
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if (pih->phandler->image) {
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IImage8* oldImg = pih->phandler->image;
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oldImg->getMutex().lock ();
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pih->phandler->image = iap->image;
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oldImg->getMutex().unlock ();
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}
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else
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pih->phandler->image = iap->image;
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pih->phandler->cropParams = iap->cp;
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pih->phandler->previewScale = iap->scale;
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pih->pending--;
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delete iap;
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return 0;
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}
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void PreviewHandler::setImage (rtengine::IImage8* i, double scale, rtengine::procparams::CropParams cp) {
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pih->pending++;
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iaimgpar* iap = new iaimgpar;
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iap->image = i;
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iap->pih = pih;
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iap->scale = scale;
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iap->cp = cp;
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g_idle_add (setImageUI, iap);
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}
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int delImageUI (void* data) {
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iaimgpar* iap = static_cast<iaimgpar*>(data);
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PreviewHandlerIdleHelper* pih = iap->pih;
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if (pih->destroyed) {
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if (pih->pending == 1)
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delete pih;
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else
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pih->pending--;
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delete iap;
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return 0;
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}
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if (pih->phandler->image) {
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IImage8* oldImg = pih->phandler->image;
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oldImg->getMutex().lock ();
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pih->phandler->image = NULL;
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oldImg->getMutex().unlock ();
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}
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iap->image->free ();
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pih->phandler->previewImgMutex.lock ();
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pih->phandler->previewImg.clear ();
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pih->phandler->previewImgMutex.unlock ();
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pih->pending--;
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delete iap;
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return 0;
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}
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void PreviewHandler::delImage (IImage8* i) {
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pih->pending++;
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iaimgpar* iap = new iaimgpar;
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iap->image = i;
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iap->pih = pih;
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g_idle_add (delImageUI, iap);
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}
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int imageReadyUI (void* data) {
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iaimgpar* iap = static_cast<iaimgpar*>(data);
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PreviewHandlerIdleHelper* pih = iap->pih;
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if (pih->destroyed) {
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if (pih->pending == 1)
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delete pih;
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else
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pih->pending--;
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delete iap;
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return 0;
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}
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pih->phandler->previewImgMutex.lock ();
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pih->phandler->previewImg = Gdk::Pixbuf::create_from_data (pih->phandler->image->getData(), Gdk::COLORSPACE_RGB, false, 8, pih->phandler->image->getWidth(), pih->phandler->image->getHeight(), 3*pih->phandler->image->getWidth());
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pih->phandler->previewImgMutex.unlock ();
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pih->phandler->cropParams = iap->cp;
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pih->phandler->previewImageChanged ();
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pih->pending--;
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delete iap;
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return 0;
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}
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void PreviewHandler::imageReady (CropParams cp) {
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pih->pending++;
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iaimgpar* iap = new iaimgpar;
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iap->pih = pih;
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iap->cp = cp;
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g_idle_add (imageReadyUI, iap);
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}
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Glib::RefPtr<Gdk::Pixbuf> PreviewHandler::getRoughImage (int x, int y, int w, int h, double zoom) {
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MyMutex::MyLock lock(previewImgMutex);
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Glib::RefPtr<Gdk::Pixbuf> resPixbuf;
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if (previewImg) {
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double totalZoom = zoom*previewScale;
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if (w>previewImg->get_width()*totalZoom)
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w = image->getWidth()*totalZoom;
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if (h>previewImg->get_height()*totalZoom)
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h = image->getHeight()*totalZoom;
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int ix = x*zoom;
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int iy = y*zoom;
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if (ix<0)
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ix = 0;
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if (iy<0)
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iy = 0;
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if ((ix+w)/totalZoom>previewImg->get_width())
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ix = previewImg->get_width()*totalZoom - w;
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if ((iy+h)/totalZoom>previewImg->get_height())
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iy = previewImg->get_height()*totalZoom - h;
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resPixbuf = Gdk::Pixbuf::create (Gdk::COLORSPACE_RGB, false, 8, w, h);
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previewImg->scale (resPixbuf, 0, 0, w, h, -ix, -iy, totalZoom, totalZoom, Gdk::INTERP_NEAREST);
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}
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return resPixbuf;
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}
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Glib::RefPtr<Gdk::Pixbuf> PreviewHandler::getRoughImage (int desiredW, int desiredH, double& zoom_) {
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MyMutex::MyLock lock(previewImgMutex);
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Glib::RefPtr<Gdk::Pixbuf> resPixbuf;
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if (previewImg) {
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double zoom1 = (double)desiredW / previewImg->get_width();
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double zoom2 = (double)desiredH / previewImg->get_height();
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double zoom = zoom1<zoom2 ? zoom1 : zoom2;
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resPixbuf = Gdk::Pixbuf::create (Gdk::COLORSPACE_RGB, false, 8, image->getWidth()*zoom, image->getHeight()*zoom);
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previewImg->scale (resPixbuf, 0, 0, previewImg->get_width()*zoom, previewImg->get_height()*zoom, 0, 0, zoom, zoom, Gdk::INTERP_NEAREST);
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zoom_ = zoom / previewScale;
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}
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return resPixbuf;
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}
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void PreviewHandler::previewImageChanged () {
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for (std::list<PreviewListener*>::iterator i=listeners.begin(); i!=listeners.end(); i++)
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(*i)->previewImageChanged ();
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}
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