1 // Copyright (c) 2011 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/info_bubble_view.h" 6 7 #include "base/logging.h" 8 #include "base/memory/scoped_nsobject.h" 9 10 @implementation InfoBubbleView 11 12 @synthesize arrowLocation = arrowLocation_; 13 14 - (id)initWithFrame:(NSRect)frameRect { 15 if ((self = [super initWithFrame:frameRect])) { 16 arrowLocation_ = info_bubble::kTopLeft; 17 } 18 return self; 19 } 20 21 - (void)drawRect:(NSRect)rect { 22 // Make room for the border to be seen. 23 NSRect bounds = [self bounds]; 24 bounds.size.height -= info_bubble::kBubbleArrowHeight; 25 NSBezierPath* bezier = [NSBezierPath bezierPath]; 26 rect.size.height -= info_bubble::kBubbleArrowHeight; 27 28 // Start with a rounded rectangle. 29 [bezier appendBezierPathWithRoundedRect:bounds 30 xRadius:info_bubble::kBubbleCornerRadius 31 yRadius:info_bubble::kBubbleCornerRadius]; 32 33 // Add the bubble arrow. 34 CGFloat dX = 0; 35 switch (arrowLocation_) { 36 case info_bubble::kTopLeft: 37 dX = info_bubble::kBubbleArrowXOffset; 38 break; 39 case info_bubble::kTopRight: 40 dX = NSWidth(bounds) - info_bubble::kBubbleArrowXOffset - 41 info_bubble::kBubbleArrowWidth; 42 break; 43 default: 44 NOTREACHED(); 45 break; 46 } 47 NSPoint arrowStart = NSMakePoint(NSMinX(bounds), NSMaxY(bounds)); 48 arrowStart.x += dX; 49 [bezier moveToPoint:NSMakePoint(arrowStart.x, arrowStart.y)]; 50 [bezier lineToPoint:NSMakePoint(arrowStart.x + 51 info_bubble::kBubbleArrowWidth / 2.0, 52 arrowStart.y + 53 info_bubble::kBubbleArrowHeight)]; 54 [bezier lineToPoint:NSMakePoint(arrowStart.x + info_bubble::kBubbleArrowWidth, 55 arrowStart.y)]; 56 [bezier closePath]; 57 [[NSColor whiteColor] set]; 58 [bezier fill]; 59 } 60 61 - (NSPoint)arrowTip { 62 NSRect bounds = [self bounds]; 63 CGFloat tipXOffset = 64 info_bubble::kBubbleArrowXOffset + info_bubble::kBubbleArrowWidth / 2.0; 65 CGFloat xOffset = 66 (arrowLocation_ == info_bubble::kTopRight) ? NSMaxX(bounds) - tipXOffset : 67 NSMinX(bounds) + tipXOffset; 68 NSPoint arrowTip = NSMakePoint(xOffset, NSMaxY(bounds)); 69 return arrowTip; 70 } 71 72 @end 73
