comparison layer/TimeRulerLayer.cpp @ 1345:3fa8cdbf362c zoom

Use more precise text rendering when zoomed in beyond the ms level

 
 #include "LayerFactory.h"
 
 #include "data/model/Model.h"
 #include "base/RealTime.h"
+#include "base/Preferences.h"
 #include "view/View.h"
 
 #include "ColourDatabase.h"
 #include "PaintAssistant.h"
 

 
 #ifdef DEBUG_TIME_RULER_LAYER
     cerr << "start us = " << us << " at step " << incus << endl;
 #endif
 
+    Preferences *prefs = Preferences::getInstance();
+    auto origTimeTextMode = prefs->getTimeToTextMode();
+    if (incus < 1000) {
+        // Temporarily switch to usec display mode (if we aren't using
+        // it already)
+        prefs->blockSignals(true);
+        prefs->setTimeToTextMode(Preferences::TimeToTextUs);
+    }
+    
     // Calculate the number of ticks per increment -- approximate
     // values for x and frame counts here will do, no rounding issue.
     // We always use the exact incus in our calculations for where to
     // draw the actual ticks or lines.
 

 #ifdef DEBUG_TIME_RULER_LAYER
             cerr << "X in range, drawing line here for time " << rt.toText() << " (usec = " << us << ")" << endl;
 #endif
 
             QString text(QString::fromStdString(rt.toText()));
+            
             QFontMetrics metrics = paint.fontMetrics();
             int tw = metrics.width(text);
 
             if (tw < 50 &&
                 (x < rect.x() - tw/2 ||

             paint.drawLine(x, v->getPaintHeight() - sz - 1, x, v->getPaintHeight() - 1);
         }
 
         us += incus;
     }
+    
+    prefs->setTimeToTextMode(origTimeTextMode);
+    prefs->blockSignals(false);
 
     paint.restore();
 }
 
 int