last bugfixes on opie-eye an imagescrollview. Seems that now all is working

as it should.

1 files changed, 4 insertions, 1 deletions

diff --git a/libopie2/opiemm/oimagescrollview.cpp b/libopie2/opiemm/oimagescrollview.cpp
index 10da823..76f50e1 100644
--- a/libopie2/opiemm/oimagescrollview.cpp
+++ b/libopie2/opiemm/oimagescrollview.cpp
@@ -160,96 +160,97 @@ void OImageScrollView::init()
             _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&)) );
 
     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());
     }
     _intensity = 0;
 }
 
 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
 {
     return m_states.testBit(AUTO_ROTATE);
 }
 
 void OImageScrollView::setAutoScaleRotate(bool scale, bool rotate)
 {
     m_states.setBit(AUTO_ROTATE,rotate);
     setAutoScale(scale);
 }
 
 void OImageScrollView::setAutoScale(bool how)
 {
     m_states.setBit(AUTO_SCALE,how);
     _image_data = QImage();
     if (ImageIsJpeg() && how == false && ImageScaledLoaded()==true) {
         loadJpeg(true);
     }
+    _newImage = true;
     generateImage();
 }
 
 bool OImageScrollView::AutoScale()const
 {
     return m_states.testBit(AUTO_SCALE);
 }
 
 OImageScrollView::~OImageScrollView()
 {
 }
 
 void OImageScrollView::rescaleImage(int w, int h)
 {
     if (_image_data.width()==w && _image_data.height()==h) {
         return;
     }
     double hs = (double)h / (double)_image_data.height() ;
     double ws = (double)w / (double)_image_data.width() ;
     double scaleFactor = (hs > ws) ? ws : hs;
     int smoothW = (int)(scaleFactor * _image_data.width());
     int smoothH = (int)(scaleFactor * _image_data.height());
     _image_data = _image_data.smoothScale(smoothW,smoothH);
 }
 
 void OImageScrollView::rotate_into_data(Rotation r)
 {
     /* realy - we must do this that way, 'cause when acting direct on _image_data the app will
        segfault :( */
     QImage dest;
     int x, y;
     if ( _original_data.depth() > 8 )
     {
         unsigned int *srcData, *destData;
         switch ( r )
         {
             case Rotate90:
                 dest.create(_original_data.height(), _original_data.width(), _original_data.depth());
                 for ( y=0; y < _original_data.height(); ++y )
                 {
                     srcData = (unsigned int *)_original_data.scanLine(y);
                     for ( x=0; x < _original_data.width(); ++x )
                     {
                         destData = (unsigned int *)dest.scanLine(x);
                         destData[_original_data.height()-y-1] = srcData[x];
                     }
                 }
                 break;
@@ -303,98 +304,100 @@ void OImageScrollView::rotate_into_data(Rotation r)
                     }
                 }
                 break;
             case Rotate180:
                 dest.create(_original_data.width(), _original_data.height(), _original_data.depth());
                 dest.setNumColors(_original_data.numColors());
                 srcTable = (unsigned int *)_original_data.colorTable();
                 destTable = (unsigned int *)dest.colorTable();
                 for ( x=0; x < _original_data.numColors(); ++x )
                     destTable[x] = srcTable[x];
                 for ( y=0; y < _original_data.height(); ++y )
                 {
                     srcData = (unsigned char *)_original_data.scanLine(y);
                     destData = (unsigned char *)dest.scanLine(_original_data.height()-y-1);
                     for ( x=0; x < _original_data.width(); ++x )
                         destData[_original_data.width()-x-1] = srcData[x];
                 }
                 break;
             case Rotate270:
                 dest.create(_original_data.height(), _original_data.width(), _original_data.depth());
                 dest.setNumColors(_original_data.numColors());
                 srcTable = (unsigned int *)_original_data.colorTable();
                 destTable = (unsigned int *)dest.colorTable();
                 for ( x=0; x < _original_data.numColors(); ++x )
                     destTable[x] = srcTable[x];
                 for ( y=0; y < _original_data.height(); ++y )
                 {
                     srcData = (unsigned char *)_original_data.scanLine(y);
                     for ( x=0; x < _original_data.width(); ++x )
                     {
                         destData = (unsigned char *)dest.scanLine(_original_data.width()-x-1);
                         destData[y] = srcData[x];
                     }
                 }
                 break;
             default:
                 dest = _original_data;
                 break;
         }
 
     }
     _newImage = true;
     _image_data = dest;
 }
 
 // yes - sorry - it is NOT gamma it is just BRIGHTNESS. Alwin
 void OImageScrollView::apply_gamma(int aValue)
 {
-    if (!_image_data.size().isValid()) return;
+    if (aValue==0 || !_image_data.size().isValid()) return;
     float percent = ((float)aValue/100.0);
+    /* make sure working on a copy */
+    _image_data.detach();
 
     int segColors = _image_data.depth() > 8 ? 256 : _image_data.numColors();
     /* must be - otherwise it displays some ... strange colors */
     if (segColors<256) segColors=256;
 
     unsigned char *segTbl = new unsigned char[segColors];
     int pixels = _image_data.depth()>8?_image_data.width()*_image_data.height() : _image_data.numColors();
 
 
     bool brighten = (percent >= 0);
     if ( percent < 0 ) {
         percent = -percent;
     }
 
     unsigned int *data = _image_data.depth() > 8 ? (unsigned int *)_image_data.bits() :
                          (unsigned int *)_image_data.colorTable();
 
     int tmp = 0;
 
     if (brighten) {
         for ( int i=0; i < segColors; ++i )
         {
             tmp = (int)(i*percent);
             if ( tmp > 255 )
                 tmp = 255;
             segTbl[i] = tmp;
         }
     } else {
         for ( int i=0; i < segColors; ++i )
         {
             tmp = (int)(i*percent);
             if ( tmp < 0 )
                 tmp = 0;
             segTbl[i] = tmp;
         }
     }
     if (brighten) {
         for ( int i=0; i < pixels; ++i )
         {
             int r = qRed(data[i]);
             int g = qGreen(data[i]);
             int b = qBlue(data[i]);
             int a = qAlpha(data[i]);
             r = r + segTbl[r] > 255 ? 255 : r + segTbl[r];
             g = g + segTbl[g] > 255 ? 255 : g + segTbl[g];
             b = b + segTbl[b] > 255 ? 255 : b + segTbl[b];
             data[i] = qRgba(r, g, b,a);
         }