comparison layer/Colour3DPlotLayer.cpp @ 1053:38a53c7b81f6 3.0-integration

Don't paint if model has zero width

         QString maxstr = QString("%1").arg(max);
         
         paint.save();
 
         QFont font = paint.font();
-        font.setPixelSize(int(font.pixelSize() * 0.65));
-        paint.setFont(font);
+        if (font.pixelSize() > 0) {
+            int newSize = int(font.pixelSize() * 0.65);
+            if (newSize < 6) newSize = 6;
+            font.setPixelSize(newSize);
+            paint.setFont(font);
+        }
 
         int msw = paint.fontMetrics().width(maxstr);
 
         QMatrix m;
         m.translate(cw - 6, ch + 10);

 			   10, QColor(120, 120, 120));
 	}
 	return;
     }
 
+    if (m_model->getWidth() == 0) {
+#ifdef DEBUG_COLOUR_3D_PLOT_LAYER_PAINT
+        cerr << "Colour3DPlotLayer::paint(): model width == 0, "
+             << "nothing to paint (yet)" << endl;
+#endif
+        return;
+    }
+    
     if (m_normalizeVisibleArea && !m_normalizeColumns) rect = v->getPaintRect();
 
     sv_frame_t modelStart = m_model->getStartFrame();
     sv_frame_t modelEnd = m_model->getEndFrame();
     int modelResolution = m_model->getResolution();