diff view/Overview.cpp @ 1325:bc2cb82050a0 zoom

Gradual ZoomLevel updates

--- a/view/Overview.cpp	Mon Sep 17 13:51:31 2018 +0100
+++ b/view/Overview.cpp	Wed Sep 19 15:42:22 2018 +0100
@@ -44,12 +44,14 @@
 void
 Overview::modelChangedWithin(sv_frame_t startFrame, sv_frame_t endFrame)
 {
+    using namespace std::rel_ops;
+    
     bool zoomChanged = false;
 
     sv_frame_t frameCount = getModelsEndFrame() - getModelsStartFrame();
     ZoomLevel zoomLevel { ZoomLevel::FramesPerPixel, int(frameCount / width()) };
     if (zoomLevel.level < 1) zoomLevel.level = 1;
-    zoomLevel = getZoomConstraintBlockSize(zoomLevel, ZoomConstraint::RoundUp);
+    zoomLevel = getZoomConstraintLevel(zoomLevel, ZoomConstraint::RoundUp);
     if (zoomLevel != m_zoomLevel) {
         zoomChanged = true;
     }
@@ -170,6 +172,8 @@
 void
 Overview::paintEvent(QPaintEvent *e)
 {
+    using namespace std::rel_ops;
+    
     // Recalculate zoom in case the size of the widget has changed.
 
 #ifdef DEBUG_OVERVIEW
@@ -178,10 +182,9 @@
 
     sv_frame_t startFrame = getModelsStartFrame();
     sv_frame_t frameCount = getModelsEndFrame() - getModelsStartFrame();
-    int zoomLevel = int(frameCount / width());
-    if (zoomLevel < 1) zoomLevel = 1;
-    zoomLevel = getZoomConstraintBlockSize(zoomLevel,
-                                           ZoomConstraint::RoundUp);
+    ZoomLevel zoomLevel { ZoomLevel::FramesPerPixel, int(frameCount / width()) };
+    if (zoomLevel.level < 1) zoomLevel.level = 1;
+    zoomLevel = getZoomConstraintLevel(zoomLevel, ZoomConstraint::RoundUp);
     if (zoomLevel != m_zoomLevel) {
         m_zoomLevel = zoomLevel;
         emit zoomLevelChanged(m_zoomLevel, m_followZoom);