Fix toggle timeline thumbnails command (fix #1518)

data/pref.xml

@@ -234,9 +234,6 @@
     <section id="symmetry_mode">
       <option id="enabled" type="bool" default="false" />
     </section>
-    <section id="thumbnails">
-      <option id="visible_options" type="bool" default="false" />
-    </section>
     <section id="perf">
       <option id="show_render_time" type="bool" default="false" />
     </section>

data/strings/en.ini

@@ -867,10 +867,8 @@ bottom = &Bottom
 frame_header = Frame Header:
 first_frame = First Frame:
 thumbnails = Thumbnails
-force = Force
-zoom = Zoom:
-overlay = Overlay
-size = Size:
+thumbnail_size = Thumbnail Size:
+overlay_size = Overlay Size:
 onion_skin = Onion Skin:
 merge_frames = Merge Frames
 red_blue_tint = Red/Blue Tint

data/widgets/timeline_conf.xml

@@ -21,16 +21,14 @@
       </hbox>
 
       <hbox>
-	<check id="thumb_check" text="@.thumbnails" horizontal="true" />
+	<check id="thumb_enabled" text="@.thumbnails" horizontal="true" />
 	<separator id="thumb_h_separator" horizontal="true" expansive="true" />
       </hbox>
-      <grid columns="3" id="thumb_box">
-	<check id="thumb_enabled" text="@.force" />
-	<label text="@.zoom" />
+      <grid columns="2" id="thumb_box">
+	<label text="@.thumbnail_size" />
 	<slider min="1" max="10" id="zoom" cell_align="horizontal" width="128" />
 
-	<check id="thumb_overlay_enabled" text="@.overlay"/>
-	<label text="@.size" />
+	<check id="thumb_overlay_enabled" text="@.overlay_size"/>
 	<slider min="2" max="10" id="thumb_overlay_size" cell_align="horizontal" width="128" />
       </grid>
     </vbox>

src/app/ui/configure_timeline_popup.cpp

@@ -64,14 +64,13 @@ ConfigureTimelinePopup::ConfigureTimelinePopup()
   m_box->infront()->Click.connect(base::Bind<void>(&ConfigureTimelinePopup::onPositionChange, this));
 
   m_box->zoom()->Change.connect(base::Bind<void>(&ConfigureTimelinePopup::onZoomChange, this));
-  m_box->thumbCheck()->Click.connect(base::Bind<void>(&ConfigureTimelinePopup::onThumbBoxChange, this));
   m_box->thumbEnabled()->Click.connect(base::Bind<void>(&ConfigureTimelinePopup::onThumbEnabledChange, this));
   m_box->thumbOverlayEnabled()->Click.connect(base::Bind<void>(&ConfigureTimelinePopup::onThumbOverlayEnabledChange, this));
   m_box->thumbOverlaySize()->Change.connect(base::Bind<void>(&ConfigureTimelinePopup::onThumbOverlaySizeChange, this));
 
-  bool visibleThumbBox = Preferences::instance().thumbnails.visibleOptions();
-  m_box->thumbHSeparator()->setVisible(visibleThumbBox);
-  m_box->thumbBox()->setVisible(visibleThumbBox);
+  const bool visibleThumb = docPref().thumbnails.enabled();
+  m_box->thumbHSeparator()->setVisible(visibleThumb);
+  m_box->thumbBox()->setVisible(visibleThumb);
 }
 
 app::Document* ConfigureTimelinePopup::doc()
@@ -132,13 +131,12 @@ void ConfigureTimelinePopup::updateWidgetsFromCurrentSettings()
       break;
   }
 
-  bool visibleThumbBox = Preferences::instance().thumbnails.visibleOptions();
+  const bool visibleThumb = docPref.thumbnails.enabled();
 
   m_box->zoom()->setValue(int(docPref.thumbnails.zoom())); // TODO add a slider for floating points
-  m_box->thumbCheck()->setSelected(visibleThumbBox);
-  m_box->thumbHSeparator()->setVisible(visibleThumbBox);
-  m_box->thumbBox()->setVisible(visibleThumbBox);
-  m_box->thumbEnabled()->setSelected(docPref.thumbnails.enabled());
+  m_box->thumbEnabled()->setSelected(visibleThumb);
+  m_box->thumbHSeparator()->setVisible(visibleThumb);
+  m_box->thumbBox()->setVisible(visibleThumb);
   m_box->thumbOverlayEnabled()->setSelected(docPref.thumbnails.overlayEnabled());
   m_box->thumbOverlaySize()->setValue(docPref.thumbnails.overlaySize());
 
@@ -242,17 +240,10 @@ void ConfigureTimelinePopup::onZoomChange()
   docPref().thumbnails.zoom(m_box->zoom()->getValue());
 }
 
-void ConfigureTimelinePopup::onThumbBoxChange()
-{
-  auto& option = Preferences::instance().thumbnails.visibleOptions;
-  option(!option());
-
-  updateWidgetsFromCurrentSettings();
-}
-
 void ConfigureTimelinePopup::onThumbEnabledChange()
 {
   docPref().thumbnails.enabled(m_box->thumbEnabled()->isSelected());
+  updateWidgetsFromCurrentSettings();
 }
 
 void ConfigureTimelinePopup::onThumbOverlayEnabledChange()

src/app/ui/configure_timeline_popup.h

@@ -43,7 +43,6 @@ namespace app {
     void onPositionChange();
 
     void onZoomChange();
-    void onThumbBoxChange();
     void onThumbEnabledChange();
     void onThumbOverlayEnabledChange();
     void onThumbOverlaySizeChange();

src/app/ui/timeline/timeline.cpp

@@ -238,29 +238,35 @@ Timeline::~Timeline()
   delete m_confPopup;
 }
 
-void Timeline::setZoom(double zoom)
+void Timeline::setZoom(const double zoom)
 {
   m_zoom = MID(1.0, zoom, 10.0);
   m_thumbnailsOverlayDirection = gfx::Point(int(frameBoxWidth()*1.0), int(frameBoxWidth()*0.5));
   m_thumbnailsOverlayVisible = false;
 }
 
-void Timeline::setZoomAndUpdate(double zoom)
+void Timeline::setZoomAndUpdate(const double zoom,
+                                const bool updatePref)
 {
   if (zoom != m_zoom) {
     setZoom(zoom);
+    regenerateTagBands();
     updateScrollBars();
     setViewScroll(viewScroll());
     invalidate();
   }
-  if (zoom != docPref().thumbnails.zoom()) {
+  if (updatePref && zoom != docPref().thumbnails.zoom()) {
     docPref().thumbnails.zoom(zoom);
+    docPref().thumbnails.enabled(zoom > 1);
   }
 }
 
 void Timeline::onThumbnailsPrefChange()
 {
-  setZoomAndUpdate(docPref().thumbnails.zoom());
+  setZoomAndUpdate(
+    docPref().thumbnails.enabled() ?
+    docPref().thumbnails.zoom(): 1.0,
+    false);
 }
 
 void Timeline::updateUsingEditor(Editor* editor)
@@ -304,7 +310,9 @@ void Timeline::updateUsingEditor(Editor* editor)
   m_thumbnailsPrefConn = docPref.thumbnails.AfterChange.connect(
     base::Bind<void>(&Timeline::onThumbnailsPrefChange, this));
 
-  setZoom(docPref.thumbnails.zoom());
+  setZoom(
+    docPref.thumbnails.enabled() ?
+    docPref.thumbnails.zoom(): 1.0);
 
   // If we are already in the same position as the "editor", we don't
   // need to update the at all timeline.
@@ -1217,7 +1225,7 @@ bool Timeline::onProcessMessage(Message* msg)
             else if (dz > 1.0) dz = 1.0;
           }
 
-          setZoomAndUpdate(m_zoom - dz);
+          setZoomAndUpdate(m_zoom - dz, true);
         }
         else {
           if (!precise) {
@@ -1248,7 +1256,9 @@ bool Timeline::onProcessMessage(Message* msg)
       break;
 
     case kTouchMagnifyMessage:
-      setZoomAndUpdate(m_zoom + m_zoom * static_cast<ui::TouchMessage*>(msg)->magnification());
+      setZoomAndUpdate(
+        m_zoom + m_zoom * static_cast<ui::TouchMessage*>(msg)->magnification(),
+        true);
       break;
   }
 
@@ -1996,7 +2006,7 @@ void Timeline::drawCel(ui::Graphics* g, layer_t layerIndex, frame_t frame, Cel*
   drawPart(g, bounds, nullptr, style, is_active, is_hover);
 
   // Draw thumbnail
-  if ((docPref().thumbnails.enabled() || m_zoom > 1) && image) {
+  if ((docPref().thumbnails.enabled() && m_zoom > 1) && image) {
     gfx::Rect thumb_bounds =
       gfx::Rect(bounds).shrink(
         skinTheme()->calcBorder(this, style));
@@ -3473,12 +3483,12 @@ int Timeline::headerBoxHeight() const
 
 int Timeline::layerBoxHeight() const
 {
-  return int(m_zoom*skinTheme()->dimensions.timelineBaseSize() + int(m_zoom > 1) * headerBoxHeight());
+  return int(zoom()*skinTheme()->dimensions.timelineBaseSize());
 }
 
 int Timeline::frameBoxWidth() const
 {
-  return int(m_zoom*skinTheme()->dimensions.timelineBaseSize());
+  return int(zoom()*skinTheme()->dimensions.timelineBaseSize());
 }
 
 int Timeline::outlineWidth() const
@@ -3494,6 +3504,14 @@ int Timeline::oneTagHeight() const
     skinTheme()->dimensions.timelineTagsAreaHeight();
 }
 
+double Timeline::zoom() const
+{
+  if (docPref().thumbnails.enabled())
+    return m_zoom;
+  else
+    return 1.0;
+}
+
 // Returns the last frame where the frame tag (or frame tag label)
 // is visible in the timeline.
 int Timeline::calcTagVisibleToFrame(FrameTag* frameTag) const

src/app/ui/timeline/timeline.h

@@ -311,8 +311,11 @@ namespace app {
     void updateCelOverlayBounds(const Hit& hit);
     void drawCelOverlay(ui::Graphics* g);
     void onThumbnailsPrefChange();
-    void setZoom(double zoom);
-    void setZoomAndUpdate(double zoom);
+    void setZoom(const double zoom);
+    void setZoomAndUpdate(const double zoom,
+                          const bool updatePref);
+
+    double zoom() const;
 
     ui::ScrollBar m_hbar;
     ui::ScrollBar m_vbar;