add Tickmarks to aura overlay scrollbar

third_party/WebKit/Source/platform/scroll/ScrollbarThemeAura.cpp

 /*
  * Copyright (c) 2008, 2009, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 16 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "platform/scroll/ScrollbarThemeAura.h"
 
 #include "platform/LayoutTestSupport.h"
 #include "platform/PlatformMouseEvent.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "platform/graphics/GraphicsContext.h"
-#include "platform/graphics/GraphicsContextStateSaver.h"
 #include "platform/graphics/paint/DrawingRecorder.h"
 #include "platform/scroll/ScrollableArea.h"
 #include "platform/scroll/Scrollbar.h"
 #include "platform/scroll/ScrollbarThemeOverlay.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebRect.h"
 #include "public/platform/WebThemeEngine.h"
 
 namespace blink {
 
@@ skipping 170 matching lines @@
     IntSize size = Platform::current()->themeEngine()->getSize(
         WebThemeEngine::PartScrollbarVerticalThumb);
     return size.height();
   }
 
   IntSize size = Platform::current()->themeEngine()->getSize(
       WebThemeEngine::PartScrollbarHorizontalThumb);
   return size.width();
 }
 
-void ScrollbarThemeAura::paintTickmarks(GraphicsContext& context,
-                                        const Scrollbar& scrollbar,
-                                        const IntRect& rect) {
-  if (scrollbar.orientation() != VerticalScrollbar)
-    return;
-
-  if (rect.height() <= 0 || rect.width() <= 0)
-    return;
-
-  // Get the tickmarks for the frameview.
-  Vector<IntRect> tickmarks;
-  scrollbar.getTickmarks(tickmarks);
-  if (!tickmarks.size())
-    return;
-
-  if (DrawingRecorder::useCachedDrawingIfPossible(
-          context, scrollbar, DisplayItem::kScrollbarTickmarks))
-    return;
-
-  DrawingRecorder recorder(context, scrollbar, DisplayItem::kScrollbarTickmarks,
-                           rect);
-  GraphicsContextStateSaver stateSaver(context);
-  context.setShouldAntialias(false);
-
-  for (Vector<IntRect>::const_iterator i = tickmarks.begin();
-       i != tickmarks.end(); ++i) {
-    // Calculate how far down (in %) the tick-mark should appear.
-    const float percent = static_cast<float>(i->y()) / scrollbar.totalSize();
-
-    // Calculate how far down (in pixels) the tick-mark should appear.
-    const int yPos = rect.y() + (rect.height() * percent);
-
-    FloatRect tickRect(rect.x(), yPos, rect.width(), 3);
-    context.fillRect(tickRect, Color(0xCC, 0xAA, 0x00, 0xFF));
-
-    FloatRect tickStroke(rect.x(), yPos + 1, rect.width(), 1);
-    context.fillRect(tickStroke, Color(0xFF, 0xDD, 0x00, 0xFF));
-  }
-}
-
 void ScrollbarThemeAura::paintTrackBackground(GraphicsContext& context,
                                               const Scrollbar& scrollbar,
                                               const IntRect& rect) {
   // Just assume a forward track part. We only paint the track as a single piece
   // when there is no thumb.
   if (!hasThumb(scrollbar) && !rect.isEmpty())
     paintTrackPiece(context, scrollbar, rect, ForwardTrackPart);
 }
 
 void ScrollbarThemeAura::paintTrackPiece(GraphicsContext& gc,
@@ skipping 114 matching lines @@
   }
 
   // HorizontalScrollbar
   int squareSize = scrollbar.height();
   return IntSize(
       scrollbar.width() < 2 * squareSize ? scrollbar.width() / 2 : squareSize,
       squareSize);
 }
 
 }  // namespace blink