Added center operation

app/Operations/CenterOp.cpp

+/*
+ * Copyright 2011-2012 INSA Rennes
+ *
+ * This file is part of EIImage.
+ *
+ * EIImage 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.
+ *
+ * EIImage 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 EIImage.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <vector>
+#include <QApplication>
+
+#include <Operation.h>
+#include <Image.h>
+#include <ImgWidget.h>
+
+
+#include "CenterOp.h"
+
+using namespace std;
+using namespace imagein;
+
+
+CenterOp::CenterOp() : Operation(tr("Center").toStdString())
+{
+
+}
+
+bool CenterOp::needCurrentImg() {
+    return true;
+}
+
+std::vector<QWidget*> CenterOp::operator()(const imagein::Image* image, const std::map<const imagein::Image*, std::string>&) {
+    vector<QWidget*> result;
+
+    Image* resImg = new Image(image->getWidth()-image->getWidth()%2, image->getHeight()-image->getHeight()%2, image->getNbChannels());
+
+    for(unsigned int c = 0;  c < resImg->getNbChannels(); ++c) {
+        for(unsigned int j = 0; j < resImg->getHeight()/2; ++j)
+        {
+            for(unsigned int i = 0; i < resImg->getWidth()/2; ++i) {
+                Image::depth_t value = image->getPixel(i, j, c);
+                resImg->setPixel(resImg->getWidth()/2 - i - 1, resImg->getHeight()/2 - j - 1, c, value);
+            }
+            for(unsigned int i = 0; i < resImg->getWidth()/2; ++i) {
+                Image::depth_t value = image->getPixel(image->getWidth()/2 + i, j, c);
+                resImg->setPixel(resImg->getWidth() - i - 1, resImg->getHeight()/2 - j - 1, c, value);
+            }
+
+        }
+
+        for(unsigned int j = 0; j < resImg->getHeight()/2; ++j)
+        {
+            for(unsigned int i = 0; i < resImg->getWidth()/2; ++i) {
+                Image::depth_t value = image->getPixel(i, image->getHeight()/2 + j, c);
+                resImg->setPixel(resImg->getWidth()/2 - i - 1, resImg->getHeight() - j - 1, c, value);
+            }
+            for(unsigned int i = 0; i < resImg->getWidth()/2; ++i) {
+                Image::depth_t value = image->getPixel(image->getWidth()/2 + i, image->getHeight()/2 + j, c);
+                resImg->setPixel(resImg->getWidth() - i - 1, resImg->getHeight() - j - 1, c, value);
+            }
+        }
+    }
+
+    result.push_back(new ImgWidget(resImg, QString(" - centered").toStdString()));
+
+    return result;
+}
+

app/Operations/CenterOp.h

+/*
+ * Copyright 2011-2012 INSA Rennes
+ *
+ * This file is part of EIImage.
+ *
+ * EIImage 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.
+ *
+ * EIImage 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 EIImage.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CENTEROP_H
+#define CENTEROP_H
+
+#include <QApplication>
+
+#include <Operation.h>
+#include <Image.h>
+
+
+class CenterOp : public Operation
+{
+public:
+    CenterOp();
+
+    std::vector<QWidget*> operator()(const imagein::Image*, const std::map<const imagein::Image*, std::string>&);
+
+    static QString tr(const char* str) { return QApplication::tr(str); }
+
+    bool needCurrentImg();
+};
+
+#endif // CENTEROP_H