1 files changed, 126 insertions, 0 deletions
diff --git a/src/libs/dimg/loaders/qimageloader.cpp b/src/libs/dimg/loaders/qimageloader.cpp
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+++ b/src/libs/dimg/loaders/qimageloader.cpp
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+/* ============================================================
+ *
+ * This file is a part of digiKam project
+ * http://www.digikam.org
+ *
+ * Date        : 2005-06-14
+ * Description : A TQImage loader for DImg framework.
+ * 
+ * Copyright (C) 2005 by Renchi Raju <renchi@pooh.tam.uiuc.edu>
+ * Copyright (C) 2006-2007 by Caulier Gilles <caulier dot gilles at gmail dot com> 
+ *
+ * This program 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 2, or (at your option)
+ * any later version.
+ * 
+ * This program 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.
+ * 
+ * ============================================================ */
+
+// TQt includes.
+
+#include <tqimage.h>
+
+// Local includes.
+
+#include "ddebug.h"
+#include "dimg.h"
+#include "dimgloaderobserver.h"
+#include "qimageloader.h"
+
+namespace Digikam
+{
+
+TQImageLoader::TQImageLoader(DImg* image)
+            : DImgLoader(image)
+{
+}
+
+bool TQImageLoader::load(const TQString& filePath, DImgLoaderObserver *observer)
+{
+    // Loading is opaque to us. No support for stopping from observer,
+    // progress info are only pseudo values
+    TQImage image(filePath);
+
+    if (observer)
+        observer->progressInfo(m_image, 0.9);
+
+    if (image.isNull())
+    {
+        DDebug() << "Cannot loading \"" << filePath << "\" using DImg::TQImageLoader!" << endl;
+        return false;
+    }
+
+    m_hasAlpha    = image.hasAlphaBuffer();
+    TQImage target = image.convertDepth(32);
+    
+    uint w      = target.width();
+    uint h      = target.height();
+    uchar* data = new uchar[w*h*4];
+    uint*  sptr = (uint*)target.bits();
+    uchar* dptr = data;
+    
+    for (uint i = 0 ; i < w*h ; i++)
+    {
+        dptr[0] = tqBlue(*sptr);
+        dptr[1] = tqGreen(*sptr);
+        dptr[2] = tqRed(*sptr);
+        dptr[3] = tqAlpha(*sptr);
+        
+        dptr += 4;
+        sptr++;
+    }
+
+    if (observer)
+        observer->progressInfo(m_image, 1.0);
+
+    imageWidth()  = w;
+    imageHeight() = h;
+    imageData()   = data;
+
+    // We considering that PNG is the most representative format of an image loaded by TQt
+    imageSetAttribute("format", "PNG");
+
+    return true;
+}
+
+bool TQImageLoader::save(const TQString& filePath, DImgLoaderObserver *observer)
+{
+    TQVariant qualityAttr = imageGetAttribute("quality");
+    int quality = qualityAttr.isValid() ? qualityAttr.toInt() : 90;
+    
+    if (quality < 0)
+        quality = 90;
+    if (quality > 100)
+        quality = 100;
+
+    TQVariant formatAttr = imageGetAttribute("format");
+    TQCString format     = formatAttr.toCString();
+
+    TQImage image = m_image->copyTQImage();
+
+    if (observer)
+        observer->progressInfo(m_image, 0.1);
+
+    // Saving is opaque to us. No support for stopping from observer,
+    // progress info are only pseudo values
+    bool success = image.save(filePath, format.upper(), quality);
+    if (observer && success)
+        observer->progressInfo(m_image, 1.0);
+
+    imageSetAttribute("format", format.upper());
+
+    return success;
+}
+
+bool TQImageLoader::hasAlpha() const
+{
+    return m_hasAlpha;
+}
+
+}  // NameSpace Digikam