1 files changed, 129 insertions, 0 deletions
diff --git a/kipi-plugins/imageviewer/viewerwidget.h b/kipi-plugins/imageviewer/viewerwidget.h
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+++ b/kipi-plugins/imageviewer/viewerwidget.h
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+/***************************************************************************
+ *   Copyright (C) 2007 by Markus Leuthold   *
+ *   <kusi (+at) forum.titlis.org>   *
+ *                                                                         *
+ *   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 of the License, 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.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Cambridge, MA 02110-1301, USA.        *
+ ***************************************************************************/
+
+#ifndef _VIEWERWIDGET_H_
+#define _VIEWERWIDGET_H_
+
+//QT includes
+#include <qgl.h>
+#include <qdir.h>
+#include <qimage.h>
+#include <qdatetime.h>
+#include <iostream>
+#include <kurl.h>
+#include <kmimetype.h>
+#include <qregexp.h>
+#include <qcursor.h>
+#include <qtimer.h>
+
+//kipi includes
+#include <libkipi/imageinfo.h>
+#include <libkipi/interface.h>
+#include <libkipi/imagecollection.h>
+
+//local includes
+#include "texture.h"
+
+/**
+ * @short OpenGL widget for image viewer 
+ * @author Markus Leuthold <kusi (+at) forum.titlis.org>
+ * @version 0.2
+ */
+ 
+
+//keep in mind that one cache entry takes 20MB for a 5mpix pic
+#define CACHESIZE 4
+#define EMPTY 99999
+
+namespace KIPIviewer {
+using namespace std;
+
+enum OGLstate {
+        oglOK, oglNoRectangularTexture, oglNoContext
+};	
+
+class ViewerWidget : public QGLWidget
+{
+    Q_OBJECT
+			
+public:
+	ViewerWidget(KIPI::Interface*);
+	~ViewerWidget() {
+		glDeleteTextures(1,tex);
+		for(int i=0;i<CACHESIZE;i++) {
+			cache[i].file_index=EMPTY;
+			delete cache[i].texture;
+		}
+	}
+	
+    virtual void initializeGL();
+    virtual void resizeGL(int w, int h);
+    virtual void paintGL();
+    void drawImage(Texture * tex);
+    void downloadTex(Texture * tex);
+    Texture * loadImage(int file_index);
+    void prevImage();
+    void nextImage();
+    void zoom(int mdelta, QPoint pos, float factor);
+    virtual void mouseReleaseEvent(QMouseEvent * e);
+    virtual void keyReleaseEvent ( QKeyEvent * e );
+    OGLstate getOGLstate();
+
+protected:
+	struct Cache {
+		int file_index;
+		Texture * texture;
+		
+	};
+	
+	enum WheelAction {
+		zoomImage, changeImage
+	};
+	Texture * texture;
+	unsigned int old_file_idx,file_idx,idx, oldidx;
+	float ratio_view_y,ratio_view_x,delta;
+    QTime timer;
+    QDir directory;
+    QStringList files;
+    unsigned char *  imageJPEGLIB;
+	Cache cache[CACHESIZE];
+	GLuint tex[3];
+    float vertex_height,vertex_width,vertex_left,vertex_top,vertex_right,vertex_bottom;
+    QPoint startdrag, previous_pos;
+	WheelAction wheelAction;
+    bool firstImage;
+    QSize zoomsize;
+    QTimer timerMouseMove;
+    QCursor moveCursor, zoomCursor;
+	float zoomfactor_scrollwheel,  zoomfactor_mousemove,  zoomfactor_keyboard;
+	QString nullImage;
+	KIPI::Interface * kipiInterface;
+
+protected:
+    virtual void keyPressEvent(QKeyEvent *k);
+    virtual void wheelEvent ( QWheelEvent * e );
+    virtual void mouseMoveEvent ( QMouseEvent * e );
+    virtual void mousePressEvent ( QMouseEvent * e );
+    virtual void mouseDoubleClickEvent(QMouseEvent * e );
+private slots:
+    void timeoutMouseMove();
+};
+}; //namespace KIPIviewer
+#endif // _VIEWERWIDGET_H_