fixed painting problems when reloading images when widget is visible

1 files changed, 10 insertions, 6 deletions

diff --git a/libopie2/opiemm/oimagescrollview.cpp b/libopie2/opiemm/oimagescrollview.cpp
index 61b2062..a8165a4 100644
--- a/libopie2/opiemm/oimagescrollview.cpp
+++ b/libopie2/opiemm/oimagescrollview.cpp
@@ -136,49 +136,49 @@ void OImageScrollView::setImage( const QString& path ) {
     }
 }
 
 /* should be called every time the QImage changed it content */
 void OImageScrollView::init()
 {
     odebug << "init " << oendl;
 
     /*
      * create the zoomer
      * and connect ther various signals
      */
     _zoomer = new Opie::MM::OImageZoomer( this, "The Zoomer" );
     connect(_zoomer, SIGNAL( zoomAreaRel(int,int)),
             this, SLOT(scrollBy(int,int)) );
     connect(_zoomer, SIGNAL( zoomArea(int,int)),
             this, SLOT(center(int,int)) );
     connect(this,SIGNAL(contentsMoving(int,int)),
             _zoomer, (SLOT(setVisiblePoint(int,int))) );
     connect(this,SIGNAL(imageSizeChanged(const QSize&)),
             _zoomer, SLOT(setImageSize(const QSize&)) );
     connect(this,SIGNAL(viewportSizeChanged(const QSize&)),
             _zoomer, SLOT(setViewPortSize(const QSize&)) );
 
-    viewport()->setBackgroundColor(white);
+    setBackgroundColor(white);
     setFocusPolicy(QWidget::StrongFocus);
     setImageScaledLoaded(false);
     setImageIsJpeg(false);
     if (FirstResizeDone()) {
         m_last_rot = Rotate0;
         generateImage();
     } else if (_original_data.size().isValid()) {
         if (image_fit_into(_original_data.size()) || !ShowZoomer()) _zoomer->hide();
         resizeContents(_original_data.width(),_original_data.height());
     }
 }
 
 void OImageScrollView::setAutoRotate(bool how)
 {
     /* to avoid double repaints */
     if (AutoRotate() != how) {
         m_states.setBit(AUTO_ROTATE,how);
         _image_data = QImage();
         generateImage();
     }
 }
 
 bool OImageScrollView::AutoRotate()const
 {
@@ -330,153 +330,157 @@ void OImageScrollView::rotate_into_data(Rotation r)
                 break;
             default:
                 dest = _original_data;
                 break;
         }
 
     }
     _image_data = dest;
 }
 
 void OImageScrollView::generateImage()
 {
     Rotation r = Rotate0;
     _pdata = QPixmap();
     if (_original_data.isNull()) {
         emit imageSizeChanged( _image_data.size() );
         if (_zoomer) _zoomer->setImage( _image_data );
         return;
     }
     if (width()>height()&&_original_data.width()<_original_data.height() ||
         width()<height()&&_original_data.width()>_original_data.height()) {
         if (AutoRotate()) r = Rotate90;
     }
 
-
+    int twidth,theight;
     odebug << " r = " << r << oendl;
     if (AutoScale() && (_original_data.width()>width() || _original_data.height() > height()) ) {
         if (!_image_data.size().isValid()||width()>_image_data.width()||height()>_image_data.height()) {
             odebug << "Rescaling data" << oendl;
             if (r==Rotate0) {
                 _image_data = _original_data;
             } else {
                 rotate_into_data(r);
             }
         }
         rescaleImage(width(),height());
-        resizeContents(_image_data.width(),_image_data.height());
     }  else if (!FirstResizeDone()||r!=m_last_rot||_image_data.width()==0) {
         if (r==Rotate0) {
             _image_data = _original_data;
         } else {
             rotate_into_data(r);
         }
         m_last_rot = r;
-        resizeContents(_image_data.width(),_image_data.height());
     }
     _pdata.convertFromImage(_image_data);
+    twidth = _image_data.width();
+    theight = _image_data.height();
 
     /*
      * update the zoomer
      */
     check_zoomer();
     emit imageSizeChanged( _image_data.size() );
     rescaleImage( 128, 128 );
+    resizeContents(twidth,theight);
     /*
      * move scrollbar
      */
      if (_zoomer) {
         _zoomer->setGeometry( viewport()->width()-_image_data.width()/2, viewport()->height()-_image_data.height()/2,
              _image_data.width()/2, _image_data.height()/2 );
         _zoomer->setImage( _image_data );
      }
     /*
      * invalidate
      */
     _image_data=QImage();
+    if (isVisible()) {
+        updateContents(contentsX(),contentsY(),width(),height());
+    }
 }
 
 void OImageScrollView::resizeEvent(QResizeEvent * e)
 {
     odebug << "OImageScrollView resizeEvent" << oendl;
     QScrollView::resizeEvent(e);
     generateImage();
     setFirstResizeDone(true);
     emit viewportSizeChanged( viewport()->size() );
 
 }
 
 void OImageScrollView::keyPressEvent(QKeyEvent * e)
 {
     if (!e) return;
     int dx = horizontalScrollBar()->lineStep();
     int dy = verticalScrollBar()->lineStep();
     if (e->key()==Qt::Key_Right) {
         scrollBy(dx,0);
         e->accept();
     } else if (e->key()==Qt::Key_Left) {
         scrollBy(0-dx,0);
         e->accept();
     } else if (e->key()==Qt::Key_Up) {
         scrollBy(0,0-dy);
         e->accept();
     } else if (e->key()==Qt::Key_Down) {
         scrollBy(0,dy);
         e->accept();
     } else {
         e->ignore();
     }
     QScrollView::keyPressEvent(e);
 }
 
 void OImageScrollView::drawContents(QPainter * p, int clipx, int clipy, int clipw, int cliph)
 {
     int w = clipw;
     int h = cliph;
     int x = clipx;
     int y = clipy;
     bool erase = false;
 
     if (!_pdata.size().isValid()) {
-        p->fillRect(clipx,clipy,clipw,cliph,white);
+        p->fillRect(clipx,clipy,clipw,cliph, backgroundColor());
         return;
     }
     if (w>_pdata.width()) {
         w=_pdata.width();
         x = 0;
         erase = true;
     } else if (x+w>_pdata.width()){
         x = _pdata.width()-w;
     }
     if (h>_pdata.height()) {
         h=_pdata.height();
         y = 0;
         erase = true;
     } else if (y+h>_pdata.height()){
         y = _pdata.height()-h;
     }
     if (erase||_original_data.hasAlphaBuffer()) {
-        p->fillRect(clipx,clipy,clipw,cliph,white);
+        p->fillRect(clipx,clipy,clipw,cliph, backgroundColor());
     }
     p->drawPixmap(clipx,clipy,_pdata,x,y,w,h);
 }
 
 /* using the real geometry points and not the translated points is wanted! */
 void OImageScrollView::viewportMouseMoveEvent(QMouseEvent* e)
 {
     int mx, my;
     mx = e->x();
     my = e->y();
     if (_mouseStartPosX!=-1 && _mouseStartPosY!=-1) {
         int diffx = _mouseStartPosX-mx;
         int diffy = _mouseStartPosY-my;
         scrollBy(diffx,diffy);
     }
     _mouseStartPosX=mx;
     _mouseStartPosY=my;
 }
 
 void OImageScrollView::contentsMousePressEvent ( QMouseEvent * e)
 {
     odebug << " X and Y " << e->x() << " " << e->y() << oendl;
     /* this marks the beginning of a possible mouse move. Due internal reasons of QT
        the geometry values here may real differ from that set in MoveEvent (I don't know