Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdenetwork@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 170 insertions, 0 deletions

diff --git a/kopete/libkopete/compat/kpixmapregionselectorwidget.h b/kopete/libkopete/compat/kpixmapregionselectorwidget.h
new file mode 100644
index 00000000..a4a9cfcf
--- /dev/null
+++ b/kopete/libkopete/compat/kpixmapregionselectorwidget.h
@@ -0,0 +1,170 @@
+/* This file is part of the KDE libraries
+    Copyright (C) 2004 Antonio Larrosa <larrosa@kde.org
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library 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
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#ifndef __KPIXMAPREGIONSELECTORWIDGET_H__
+#define __KPIXMAPREGIONSELECTORWIDGET_H__
+#include <qvbox.h>
+#include <qpixmap.h>
+#include <qrect.h>
+#include <qlabel.h>
+#include <kimageeffect.h>
+
+class KPopupMenu;
+
+#include "kopete_export.h"
+
+/**
+ * KPixmapRegionSelectorWidget is a widget that shows a picture and provides the
+ * user with a friendly way to select a rectangular subregion of the pixmap.
+ *
+ * NOTE: There are two copies of this .h and the .cpp file, with subtle differences.
+ * One copy is in kdelibs/kdeui, and the other copy is in kdepim/libkdepim
+ * This is because kdepim has to remain backwards compatible.  Any changes
+ * to either file should be made to the other.
+ *
+ * @author Antonio Larrosa <larrosa@kde.org>
+ * @since 3.4
+ */
+class KOPETE_EXPORT KPixmapRegionSelectorWidget : public QWidget
+{
+   Q_OBJECT
+public:
+   /**
+    * Constructor for a KPixmapRegionSelectorWidget.
+    */
+   KPixmapRegionSelectorWidget( QWidget *parent = 0L, const char *name=0L);
+
+   /**
+    * Destructor for a KPixmapRegionSelectorWidget
+    */
+   ~KPixmapRegionSelectorWidget();
+
+   /**
+    * Sets the pixmap which will be shown for the user to select a region from.
+    * @param pixmap The pixmap.  Must be non-null.
+    * 
+    */
+   void setPixmap( const QPixmap &pixmap );
+
+   /**
+    * @return the original whole pixmap that we're using in this widget as the
+    * pixmap the user is selecting a region from.
+    */
+   QPixmap pixmap() const { return m_unzoomedPixmap; };
+
+   /**
+    * Sets the selected region to be @p rect (in zoomed pixmap coordinates)
+    */
+   void setSelectedRegion(const QRect &rect);
+
+   /**
+    * Returns the selected region ( in zoomed pixmap coordinates )
+    */
+   QRect selectedRegion() const;
+
+   /**
+    * Returns the selected region ( in unzoomed, original pixmap coordinates )
+    */
+   QRect unzoomedSelectedRegion() const;
+
+   /**
+    * Resets the selection to use the whole image
+    */
+   void resetSelection();
+
+   /**
+    * @returns a QImage object with just the region the user selected from the
+    * image
+    */
+   QImage selectedImage() const;
+
+   /**
+    * Sets the aspect ration that the selected subimage should have. The way to
+    * select it, is specifying an example valid @p width and @p height.
+    * @see setFreeSelectionAspectRatio()
+    */
+   void setSelectionAspectRatio(int width, int height);
+
+   /**
+    * Allows the user to do a selection which has any aspect ratio. This is
+    * the default.
+    * @see setSelectionAspectRatio()
+    */
+   void setFreeSelectionAspectRatio();
+ 
+   /**
+    * Sets the maximum size for the widget. If the image is larger than this
+    * (either horizontally or vertically), it's scaled to adjust to the maximum
+    * size (preserving the aspect ratio)
+    */
+   void setMaximumWidgetSize( int width, int height );
+
+   /**
+    * Rotates the image as specified by the @p direction parameter, also tries
+    * to rotate the selected region so that it doesn't change, as long as the
+    * forced aspect ratio setting is respected, in other case, the selected region
+    * is resetted.
+    */
+   void rotate(KImageEffect::RotateDirection direction);
+
+public slots:
+   /**
+    * Rotates the current image 90º clockwise
+    */
+   void rotateClockwise();
+   /**
+    * Rotates the current image 90º counterclockwise
+    */
+   void rotateCounterclockwise();
+
+protected:
+   /**
+    * Creates a KPopupMenu with the menu that appears when clicking with the right button on the label
+    */
+   virtual KPopupMenu *createPopupMenu();
+
+private:
+   bool eventFilter(QObject *obj, QEvent *ev);
+
+   /**
+    * Recalculates the pixmap that is shown based on the current selected area,
+    * the original image, etc. 
+    */
+   void updatePixmap();
+
+   QRect calcSelectionRectangle( const QPoint &startPoint, const QPoint & endPoint );
+
+   enum CursorState { None=0, Resizing, Moving };
+   CursorState m_state;
+
+   QPixmap m_unzoomedPixmap;
+   QPixmap m_originalPixmap;
+   QPixmap m_linedPixmap;
+   QRect   m_selectedRegion;
+   QLabel *m_label;
+
+   QPoint m_tempFirstClick;
+   double m_forcedAspectRatio;
+
+   int m_maxWidth, m_maxHeight;
+   double m_zoomFactor;
+};
+
+#endif
+