Add the ImageZoomer now alwin connect some signals and slots

3 files changed, 186 insertions, 2 deletions

diff --git a/noncore/graphics/opie-eye/lib/oimagezoomer.cpp b/noncore/graphics/opie-eye/lib/oimagezoomer.cpp
new file mode 100644
index 0000000..178fbd4
--- a/dev/null
+++ b/noncore/graphics/opie-eye/lib/oimagezoomer.cpp
@@ -0,0 +1,116 @@
+#include "oimagezoomer.h"
+
+#include <qimage.h>
+#include <qpixmap.h>
+#include <qpainter.h>
+#include <qrect.h>
+#include <qpoint.h>
+#include <qsize.h>
+
+namespace Opie {
+namespace MM {
+OImageZoomer::OImageZoomer( QWidget* parent,  const char* name,  WFlags fl )
+    :  QFrame( parent, name, fl ) {
+    init();
+}
+
+OImageZoomer::OImageZoomer( const QPixmap& pix, QWidget* par, const char* name, WFlags fl )
+    : QFrame( par, name, fl ) {
+    init();
+    setImage( pix );
+}
+
+OImageZoomer::OImageZoomer( const QSize& pSize, const QSize& vSize, QWidget* par,
+                            const char* name, WFlags fl )
+    : QFrame( par, name, fl ), m_imgSize( pSize ),m_visSize( vSize ) {
+    init();
+}
+
+void OImageZoomer::init() {
+    setFrameStyle( Panel | Sunken );
+}
+
+void OImageZoomer::setImageSize( const QSize& size ) {
+    m_imgSize = size;
+    repaint();
+}
+void OImageZoomer::setViewPortSize( const QSize& size ) {
+    m_visSize = size;
+    repaint();
+}
+
+void OImageZoomer::setVisiblePoint( const QPoint& pt ) {
+    m_visPt = pt;
+    repaint();
+}
+
+void OImageZoomer::setImage( const QImage& img) {
+    m_img = img;
+    resizeEvent( 0 );
+    repaint();
+}
+
+void OImageZoomer::setImage( const QPixmap& pix) {
+    setImage( pix.convertToImage() );
+}
+
+void OImageZoomer::resizeEvent( QResizeEvent* ev ) {
+    QFrame::resizeEvent( ev );
+    setBackgroundOrigin(  QWidget::WidgetOrigin );
+    // TODO Qt3 use PalettePixmap and use size
+    QPixmap pix; pix.convertFromImage( m_img.smoothScale( size().width(), size().height() ) );
+    setBackgroundPixmap( pix);
+}
+
+void OImageZoomer::drawContents( QPainter* p ) {
+    /*
+     * if the page size
+     */
+    if ( m_imgSize.isEmpty() )
+        return;
+
+   /*
+    * paint a red rect which represents the visible size
+    *
+    * We need to recalculate x,y and width and height of the
+    * rect. So image size relates to contentRect
+    *
+    */
+    QRect c( contentsRect() );
+    p->setPen( Qt::red );
+
+    int len = m_imgSize.width();
+    int x = (c.width()*m_visPt.x())/len        + c.x();
+    int w = (c.width()*m_visSize.width() )/len + c.x();
+    if ( w > c.width() ) w = c.width();
+
+    len = m_imgSize.height();
+    int y = (c.height()*m_visPt.y() )/len          + c.y();
+    int h = (c.height()*m_visSize.height() )/len + c.y();
+    if ( h > c.height() ) h = c.height();
+
+    p->drawRect( x, y, w, h );
+}
+
+void OImageZoomer::mousePressEvent( QMouseEvent*  ) {
+
+}
+
+void OImageZoomer::mouseMoveEvent( QMouseEvent* ev ) {
+    int mx, my;
+    mx = ev->x();
+    my = ev->y();
+
+    if ( m_mouseX != -1 && m_mouseY != -1 ) {
+        int diffx = m_mouseX-mx;
+        int diffy = m_mouseY-my;
+//       emit zoomAreaRel( diffx, diffy );
+//      emit zoomArea(
+    }
+    m_mouseX = mx;
+    m_mouseY = my;
+}
+
+
+}
+}
diff --git a/noncore/graphics/opie-eye/lib/oimagezoomer.h b/noncore/graphics/opie-eye/lib/oimagezoomer.h
new file mode 100644
index 0000000..605416c
--- a/dev/null
+++ b/noncore/graphics/opie-eye/lib/oimagezoomer.h
@@ -0,0 +1,66 @@
+#ifndef OPIE_ODP_IMAGE_ZOOMER_H
+#define OPIE_ODP_IMAGE_ZOOMER_H
+
+#include <qframe.h>
+#include <qimage.h>
+
+class QPixmap;
+class QRect;
+class QPoint;
+
+
+namespace Opie {
+namespace MM   {
+
+/**
+ * \brief small class to zoom over a widget
+ *  This class takes a QImage or QPixmap
+ *  and gets the size of the original image
+ *  and provides depending of this widgets size
+ *  a zoomer and emits the region which should
+ *  be shown / zoomed to
+ */
+class OImageZoomer : public QFrame {
+    Q_OBJECT
+public:
+    OImageZoomer( QWidget* parent = 0, const char* name = 0, WFlags fl = 0 );
+    OImageZoomer( const QPixmap&,QWidget* parent = 0, const char* name = 0,  WFlags fl = 0 );
+    OImageZoomer( const QImage&, QWidget* parent = 0, const char* name= 0, WFlags fl = 0 );
+    OImageZoomer( const QSize&, const QSize&, QWidget* par, const char*, WFlags fl );
+    ~OImageZoomer();
+
+public slots:
+    void setImageSize( const QSize& );
+    void setViewPortSize( const QSize& );
+    void setVisiblePoint( const QPoint& );
+    void setVisiblePoint( int x, int y );
+    void setImage( const QImage& );
+    void setImage( const QPixmap& );
+
+signals:
+    void zoomAreaRel( int,int );
+    void zoomArea( int,int );
+
+public:
+    void resizeEvent( QResizeEvent* );
+
+protected:
+    void drawContents( QPainter* p );
+    void mousePressEvent( QMouseEvent* ev );
+    void mouseMoveEvent( QMouseEvent* ev );
+
+private:
+    void init();
+    QImage m_img;
+    QSize m_imgSize, m_visSize;
+    QPoint m_visPt;
+    int m_mouseX, m_mouseY;
+};
+
+inline void OImageZoomer::setVisiblePoint( int x, int y ) {
+    setVisiblePoint( QPoint( x, y ) );
+}
+
+}
+}
+#endif
diff --git a/noncore/graphics/opie-eye/phunk_view.pro b/noncore/graphics/opie-eye/phunk_view.pro
index a825580..e9abe72 100644
--- a/noncore/graphics/opie-eye/phunk_view.pro
+++ b/noncore/graphics/opie-eye/phunk_view.pro
@@ -12,5 +12,6 @@ HEADERS = gui/iconview.h gui/filesystem.h gui/mainwindow.h \
 	  iface/slaveiface.h \
           gui/imageinfoui.h gui/imagescrollview.h \
-          gui/imageview.h
+          gui/imageview.h \
+	  lib/oimagezoomer.h
 	
 # A list header files
@@ -23,5 +24,6 @@ SOURCES = gui/iconview.cpp gui/filesystem.cpp gui/mainwindow.cpp \
 	  impl/dir/dir_ifaceinfo.cpp lib/slavemaster.cpp \
           gui/imageinfoui.cpp gui/imagescrollview.cpp \
-          gui/imageview.cpp
+          gui/imageview.cpp \
+	  lib/oimagezoomer.cpp
 # A list of source files