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      1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #import "chrome/browser/ui/cocoa/rect_path_utils.h"
      6 
      7 #import "third_party/GTM/AppKit/GTMNSBezierPath+RoundRect.h"
      8 
      9 namespace rect_path_utils {
     10 
     11 NSBezierPath* RectPathWithInset(RoundedCornerFlags roundedCornerFlags,
     12                                 const NSRect frame,
     13                                 const CGFloat insetX,
     14                                 const CGFloat insetY,
     15                                 const CGFloat outerRadius) {
     16   NSRect insetFrame = NSInsetRect(frame, insetX, insetY);
     17 
     18   if (outerRadius > 0.0) {
     19     CGFloat leftRadius = outerRadius - insetX;
     20     CGFloat rightRadius =
     21         (roundedCornerFlags == RoundedCornerLeft) ? 0 : leftRadius;
     22 
     23     return [NSBezierPath gtm_bezierPathWithRoundRect:insetFrame
     24                                  topLeftCornerRadius:leftRadius
     25                                 topRightCornerRadius:rightRadius
     26                               bottomLeftCornerRadius:leftRadius
     27                              bottomRightCornerRadius:rightRadius];
     28   } else {
     29     return [NSBezierPath bezierPathWithRect:insetFrame];
     30   }
     31 }
     32 
     33 // Similar to |NSRectFill()|, additionally sets |color| as the fill
     34 // color.  |outerRadius| greater than 0.0 uses rounded corners, with
     35 // inset backed out of the radius.
     36 void FillRectWithInset(RoundedCornerFlags roundedCornerFlags,
     37                        const NSRect frame,
     38                        const CGFloat insetX,
     39                        const CGFloat insetY,
     40                        const CGFloat outerRadius,
     41                        NSColor* color) {
     42   NSBezierPath* path =
     43       RectPathWithInset(roundedCornerFlags, frame, insetX, insetY, outerRadius);
     44   [color setFill];
     45   [path fill];
     46 }
     47 
     48 // Similar to |NSFrameRectWithWidth()|, additionally sets |color| as
     49 // the stroke color (as opposed to the fill color).  |outerRadius|
     50 // greater than 0.0 uses rounded corners, with inset backed out of the
     51 // radius.
     52 void FrameRectWithInset(RoundedCornerFlags roundedCornerFlags,
     53                         const NSRect frame,
     54                         const CGFloat insetX,
     55                         const CGFloat insetY,
     56                         const CGFloat outerRadius,
     57                         const CGFloat lineWidth,
     58                         NSColor* color) {
     59   const CGFloat finalInsetX = insetX + (lineWidth / 2.0);
     60   const CGFloat finalInsetY = insetY + (lineWidth / 2.0);
     61   NSBezierPath* path =
     62       RectPathWithInset(roundedCornerFlags, frame, finalInsetX, finalInsetY,
     63                         outerRadius);
     64   [color setStroke];
     65   [path setLineWidth:lineWidth];
     66   [path stroke];
     67 }
     68 
     69 }  // namespace rect_path_utils
     70