Use a fixed-width font for less jank (#86)

- Change to monospacedDigitSystemFont
- Remove old version checks
- Update build target to 10.11, as set by the project
- Bump version to 1.5.4

Fixes #85

Timer.xcodeproj/project.pbxproj

@@ -300,8 +300,8 @@
 				COMBINE_HIDPI_IMAGES = YES;
 				INFOPLIST_FILE = Timer/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks";
-				MACOSX_DEPLOYMENT_TARGET = 10.10;
-				MARKETING_VERSION = 1.5.3;
+				MACOSX_DEPLOYMENT_TARGET = 10.11;
+				MARKETING_VERSION = 1.5.4;
 				PRODUCT_BUNDLE_IDENTIFIER = com.michaelvillar.Timer;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE = "";
@@ -318,8 +318,8 @@
 				COMBINE_HIDPI_IMAGES = YES;
 				INFOPLIST_FILE = Timer/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks";
-				MACOSX_DEPLOYMENT_TARGET = 10.10;
-				MARKETING_VERSION = 1.5.3;
+				MACOSX_DEPLOYMENT_TARGET = 10.11;
+				MARKETING_VERSION = 1.5.4;
 				PRODUCT_BUNDLE_IDENTIFIER = com.michaelvillar.Timer;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE = "";

Timer/MVClockView.swift

@@ -97,18 +97,14 @@ class MVClockView: NSControl {
     self.addSubview(pauseIconImageView)
 
     timerTimeLabel = MVLabel(frame: NSMakeRect(0, 94, 150, 20))
-    timerTimeLabel.font = timeLabelFont(ofSize: timerTimeLabelFontSize)
+    timerTimeLabel.font = NSFont.systemFont(ofSize: timerTimeLabelFontSize, weight: .medium)
     timerTimeLabel.alignment = NSTextAlignment.center
     timerTimeLabel.textColor = NSColor(srgbRed: 0.749, green: 0.1412, blue: 0.0118, alpha: 1.0)
     self.addSubview(timerTimeLabel)
 
     minutesLabel = MVLabel(frame: NSMakeRect(0, 57, 150, 30))
     minutesLabel.string = ""
-    if #available(OSX 10.11, *) {
-      minutesLabel.font = NSFont.systemFont(ofSize: 35, weight: .medium)
-    } else {
-      minutesLabel.font = NSFont(name: "HelveticaNeue-Medium", size: 35)
-    }
+    minutesLabel.font = NSFont.monospacedDigitSystemFont(ofSize: 35, weight: .medium)
     minutesLabel.alignment = NSTextAlignment.center
     minutesLabel.textColor = NSColor(srgbRed: 0.2353, green: 0.2549, blue: 0.2706, alpha: 1.0)
     self.addSubview(minutesLabel)
@@ -126,11 +122,7 @@ class MVClockView: NSControl {
     minutesLabelSecondsSuffixWidth = minutesLabelSecondsSize.width
 
     secondsLabel = MVLabel(frame: NSMakeRect(0, 38, 150, 20))
-    if #available(OSX 10.11, *) {
-      secondsLabel.font = NSFont.systemFont(ofSize: 15, weight: .medium)
-    } else {
-      secondsLabel.font = NSFont(name: "HelveticaNeue-Medium", size: 15)
-    }
+    secondsLabel.font = NSFont.monospacedDigitSystemFont(ofSize: 15, weight: .regular)
     secondsLabel.alignment = NSTextAlignment.center
     secondsLabel.textColor = NSColor(srgbRed: 0.6353, green: 0.6667, blue: 0.6863, alpha: 1.0)
     self.addSubview(secondsLabel)
@@ -301,7 +293,6 @@ class MVClockView: NSControl {
         self.seconds = seconds
         self.handleClick()
       }
-
     }
   }
 
@@ -369,15 +360,7 @@ class MVClockView: NSControl {
 
     // If the local time format includes an " AM" or " PM" suffix, show the suffix with a smaller font
     if let ampmRange = timeString.range(of: " AM", options:[.caseInsensitive]) ?? timeString.range(of: " PM", options:[.caseInsensitive]) {
-      timerTimeLabel.setFont(timeLabelFont(ofSize: timerTimeLabelFontSize - 3), range: NSRange(ampmRange, in:timeString))
-    }
-  }
-
-  private func timeLabelFont(ofSize fontSize:CGFloat) -> NSFont {
-    if #available(OSX 10.11, *) {
-      return NSFont.systemFont(ofSize: fontSize, weight: .medium)
-    } else {
-      return NSFont.labelFont(ofSize: fontSize)
+      timerTimeLabel.setFont(NSFont.systemFont(ofSize: timerTimeLabelFontSize - 3, weight: .medium),range: NSRange(ampmRange, in:timeString))
     }
   }