Changeset - 0d495816e66c
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Hasan Yavuz Ă–ZDERYA - 8 years ago 2017-08-16 09:19:51
hy@ozderya.net
fix samples that are at the edges not shown or in very high zoom nothing is shown
1 file changed with 5 insertions and 4 deletions:
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src/framebufferseries.cpp
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@@ -8,24 +8,25 @@
 
  the Free Software Foundation, either version 3 of the License, or
 
  (at your option) any later version.
 

	
 
  serialplot 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 serialplot.  If not, see <http://www.gnu.org/licenses/>.
 
*/
 

	
 
#include <math.h>
 
#include "framebufferseries.h"
 

	
 
FrameBufferSeries::FrameBufferSeries(FrameBuffer* buffer)
 
{
 
    xAsIndex = true;
 
    _xmin = 0;
 
    _xmax = 1;
 
    _buffer = buffer;
 
    int_index_start = 0;
 
    int_index_end = 0;
 
}
 

	
 
@@ -64,26 +65,26 @@ QRectF FrameBufferSeries::boundingRect()
 
    {
 
        auto rect = _buffer->boundingRect();
 
        rect.setLeft(_xmin);
 
        rect.setRight(_xmax);
 
        return rect;
 
    }
 
}
 

	
 
void FrameBufferSeries::setRectOfInterest(const QRectF& rect)
 
{
 
    if (xAsIndex)
 
    {
 
        int_index_start = rect.left();
 
        int_index_end = rect.right();
 
        int_index_start = floor(rect.left())-1;
 
        int_index_end = ceil(rect.right())+1;
 
    }
 
    else
 
    {
 
        double xsize = _xmax - _xmin;
 
        size_t bsize = _buffer->size();
 
        int_index_start =  bsize * (rect.left()-_xmin) / xsize;
 
        int_index_end = bsize * (rect.right()-_xmin) / xsize;
 
        int_index_start =  floor(bsize * (rect.left()-_xmin) / xsize)-1;
 
        int_index_end = ceil(bsize * (rect.right()-_xmin) / xsize)+1;
 
    }
 

	
 
    int_index_start = std::max(int_index_start, (size_t) 0);
 
    int_index_end = std::min(_buffer->size(), int_index_end);
 
}
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