1 files changed, 198 insertions, 0 deletions
diff --git a/digikam/libs/widgets/imageplugins/imagepaniconwidget.cpp b/digikam/libs/widgets/imageplugins/imagepaniconwidget.cpp
new file mode 100644
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--- /dev/null
+++ b/digikam/libs/widgets/imageplugins/imagepaniconwidget.cpp
@@ -0,0 +1,198 @@
+/* ============================================================
+ *
+ * This file is a part of digiKam project
+ * http://www.digikam.org
+ *
+ * Date        : 2004-08-22
+ * Description : a widget to display a panel to choose
+ *               a rectangular image area.
+ *
+ * Copyright (C) 2004-2008 by Gilles Caulier <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.
+ * 
+ * ============================================================ */
+
+// C++ includes.
+
+#include <cmath>
+
+// Qt includes.
+
+#include <qpainter.h>
+#include <qpixmap.h>
+#include <qpen.h>
+#include <qtimer.h>
+
+// Local includes.
+
+#include "ddebug.h"
+#include "imageiface.h"
+#include "imageregionwidget.h"
+#include "imagepaniconwidget.h"
+#include "imagepaniconwidget.moc"
+
+namespace Digikam
+{
+
+class ImagePanIconWidgetPriv
+{
+public:
+
+    ImagePanIconWidgetPriv()
+    {
+        iface        = 0;
+        data         = 0;
+        separateView = ImageRegionWidget::SeparateViewNone;
+    }
+
+    uchar       *data;
+
+    int          separateView;
+    
+    QPointArray  hightlightPoints;
+    
+    ImageIface  *iface;
+};
+
+ImagePanIconWidget::ImagePanIconWidget(int w, int h, QWidget *parent, WFlags flags)
+                  : PanIconWidget(parent, flags)
+{
+    d = new ImagePanIconWidgetPriv;
+
+    d->iface          = new ImageIface(w, h);
+    d->data           = d->iface->getPreviewImage();
+    m_width           = d->iface->previewWidth();
+    m_height          = d->iface->previewHeight();
+    m_orgWidth        = d->iface->originalWidth();
+    m_orgHeight       = d->iface->originalHeight();
+    m_zoomedOrgWidth  = d->iface->originalWidth();
+    m_zoomedOrgHeight = d->iface->originalHeight();
+    m_pixmap          = new QPixmap(w, h);
+    
+    setFixedSize(m_width, m_height);
+
+    m_rect = QRect(width()/2-m_width/2, height()/2-m_height/2, m_width, m_height);
+    updatePixmap();
+    m_timerID = startTimer(800);
+}
+
+ImagePanIconWidget::~ImagePanIconWidget()
+{
+    delete d->iface;
+    delete [] d->data;
+    delete d;
+}
+
+void ImagePanIconWidget::setHighLightPoints(const QPointArray& pointsList)
+{
+    d->hightlightPoints = pointsList;
+    updatePixmap();
+    repaint(false);
+}
+
+void ImagePanIconWidget::updatePixmap()
+{
+    // Drawing background and image.
+    m_pixmap->fill(colorGroup().background());
+    d->iface->paint(m_pixmap, m_rect.x(), m_rect.y(), m_rect.width(), m_rect.height());
+    
+    QPainter p(m_pixmap);
+   
+    // Drawing HighLighted points.
+    
+    if (!d->hightlightPoints.isEmpty())
+    {
+       QPoint pt;
+       
+       for (int i = 0 ; i < d->hightlightPoints.count() ; i++)
+       {
+          pt = d->hightlightPoints.point(i);
+          pt.setX((int)(pt.x() * (float)(m_width)  / (float)d->iface->originalWidth())); 
+          pt.setY((int)(pt.y() * (float)(m_height) / (float)d->iface->originalHeight()));
+          p.setPen(QPen(Qt::black, 1, Qt::SolidLine));
+          p.drawLine(pt.x(), pt.y()-1, pt.x(), pt.y()+1);
+          p.drawLine(pt.x()-1, pt.y(), pt.x()+1, pt.y());
+          p.setPen(QPen(Qt::white, 1, Qt::SolidLine));
+          p.drawPoint(pt.x()-1, pt.y()-1);
+          p.drawPoint(pt.x()+1, pt.y()+1);
+          p.drawPoint(pt.x()-1, pt.y()+1);
+          p.drawPoint(pt.x()+1, pt.y()-1);
+       }
+    }   
+    
+    // Drawing selection border
+
+    if (m_flicker) p.setPen(QPen(Qt::white, 1, Qt::SolidLine));
+    else p.setPen(QPen(Qt::red, 1, Qt::SolidLine));
+
+    p.drawRect(m_localRegionSelection.x(), 
+               m_localRegionSelection.y(),
+               m_localRegionSelection.width(), 
+               m_localRegionSelection.height());
+
+    if (m_flicker) p.setPen(QPen(Qt::red, 1, Qt::DotLine));
+    else p.setPen(QPen(Qt::white, 1, Qt::DotLine));
+
+    p.drawRect(m_localRegionSelection.x(), 
+               m_localRegionSelection.y(),
+               m_localRegionSelection.width(), 
+               m_localRegionSelection.height());
+    
+    if (d->separateView == ImageRegionWidget::SeparateViewVertical)
+    {
+        if (m_flicker) p.setPen(QPen(Qt::white, 1, Qt::SolidLine));
+        else p.setPen(QPen(Qt::red, 1, Qt::SolidLine));
+
+        p.drawLine(m_localRegionSelection.topLeft().x() + m_localRegionSelection.width()/2,
+                   m_localRegionSelection.topLeft().y(),
+                   m_localRegionSelection.bottomLeft().x() + m_localRegionSelection.width()/2,
+                   m_localRegionSelection.bottomLeft().y());
+
+        if (m_flicker) p.setPen(QPen(Qt::red, 1, Qt::DotLine));
+        else p.setPen(QPen(Qt::white, 1, Qt::DotLine));
+
+        p.drawLine(m_localRegionSelection.topLeft().x() + m_localRegionSelection.width()/2,
+                   m_localRegionSelection.topLeft().y() + 1,
+                   m_localRegionSelection.bottomLeft().x() + m_localRegionSelection.width()/2,
+                   m_localRegionSelection.bottomLeft().y() - 1);
+    }
+    else if (d->separateView == ImageRegionWidget::SeparateViewHorizontal)
+    {
+        if (m_flicker) p.setPen(QPen(Qt::white, 1, Qt::SolidLine));
+        else p.setPen(QPen(Qt::red, 1, Qt::SolidLine));
+        
+        p.drawLine(m_localRegionSelection.topLeft().x(),
+                   m_localRegionSelection.topLeft().y() + m_localRegionSelection.height()/2,
+                   m_localRegionSelection.topRight().x(),
+                   m_localRegionSelection.topRight().y() + m_localRegionSelection.height()/2);
+
+        if (m_flicker) p.setPen(QPen(Qt::red, 1, Qt::DotLine));
+        else p.setPen(QPen(Qt::white, 1, Qt::DotLine));
+
+        p.drawLine(m_localRegionSelection.topLeft().x() + 1,
+                   m_localRegionSelection.topLeft().y() + m_localRegionSelection.height()/2,
+                   m_localRegionSelection.topRight().x() - 1,
+                   m_localRegionSelection.topRight().y() + m_localRegionSelection.height()/2);
+    }
+
+    p.end();
+}
+
+void ImagePanIconWidget::slotSeparateViewToggled(int t)
+{
+    d->separateView = t;
+    updatePixmap();
+    repaint(false);
+}
+
+}  // NameSpace Digikam