Add APPPrinterUnit to avoid code duplication

plugin.xml

@@ -78,6 +78,9 @@
         <header-file src="src/ios/APPPrinterRenderer.h" />
         <source-file src="src/ios/APPPrinterRenderer.m" />
 
+        <header-file src="src/ios/APPPrinterUnit.h" />
+        <source-file src="src/ios/APPPrinterUnit.m" />
+
         <header-file src="src/ios/UIPrintInteractionController+APPPrinter.h" />
         <source-file src="src/ios/UIPrintInteractionController+APPPrinter.m" />
 

src/ios/APPPrinter.m

@@ -19,9 +19,9 @@
  under the License.
  */
 
-#import "APPPrinter.h"
-#import "APPPrinterItem.h"
-#import "APPPrinterPaper.h"
+#include "APPPrinter.h"
+#include "APPPrinterItem.h"
+#include "APPPrinterPaper.h"
 #include "APPPrinterRenderer.h"
 #include "UIPrintInteractionController+APPPrinter.h"
 

src/ios/APPPrinterInfo.m

@@ -19,7 +19,7 @@
  under the License.
  */
 
-#import "APPPrinterInfo.h"
+#include "APPPrinterInfo.h"
 
 @implementation APPPrinterInfo
 

src/ios/APPPrinterItem.m

@@ -19,7 +19,7 @@
  under the License.
  */
 
-#import "APPPrinterItem.h"
+#include "APPPrinterItem.h"
 
 @implementation APPPrinterItem
 

src/ios/APPPrinterLayout.m

@@ -19,7 +19,8 @@
  under the License.
  */
 
-#import "APPPrinterLayout.h"
+#include "APPPrinterLayout.h"
+#include "APPPrinterUnit.h"
 
 @implementation APPPrinterLayout
 
@@ -33,7 +34,7 @@
     NSDictionary* insests = spec[@"padding"];
     double maxWidth       = [spec[@"maxWidth"] doubleValue];
     double maxHeight      = [spec[@"maxHeight"] doubleValue];
-    double dots           = [self pointsPerUnit:spec[@"unit"]];
+    double dots           = [APPPrinterUnit convert:spec[@"unit"]];
 
     _contentInsets = UIEdgeInsetsMake(dots * [insests[@"top"] doubleValue],
                                       dots * [insests[@"left"] doubleValue],
@@ -76,26 +77,4 @@
     formatter.perPageContentInsets = _contentInsets;
 }
 
-#pragma mark -
-#pragma mark Private
-
-- (double) pointsPerUnit:(NSString *)unit
-{
-    if ([unit isEqualToString:@"in"])
-        return 72.0;
-
-    if ([unit isEqualToString:@"mm"])
-        return 72.0 / 25.4;
-
-    if ([unit isEqualToString:@"cm"])
-        return 72.0 / 2.54;
-
-    if (![unit isEqualToString:@"pp"])
-    {
-        NSLog(@"[cordova-plugin-printer] unit not recogniced: %@", unit);
-    }
-
-    return 1.0;
-}
-
 @end

src/ios/APPPrinterPaper.m

@@ -19,7 +19,8 @@
  under the License.
  */
 
-#import "APPPrinterPaper.h"
+#include "APPPrinterPaper.h"
+#include "APPPrinterUnit.h"
 
 @implementation APPPrinterPaper
 
@@ -30,7 +31,7 @@
 {
     self = [self init];
 
-    double dots   = [self pointsPerUnit:spec[@"unit"]];
+    double dots   = [APPPrinterUnit convert:spec[@"unit"]];
     double length = [spec[@"length"] doubleValue];
     double height = [spec[@"height"] doubleValue];
     double width  = [spec[@"width"] doubleValue];
@@ -57,26 +58,4 @@
     return paper;
 }
 
-#pragma mark -
-#pragma mark Private
-
-- (double) pointsPerUnit:(NSString*)unit
-{
-    if ([unit isEqualToString:@"in"])
-        return 72.0;
-
-    if ([unit isEqualToString:@"mm"])
-        return 72.0 / 25.4;
-
-    if ([unit isEqualToString:@"cm"])
-        return 72.0 / 2.54;
-
-    if (![unit isEqualToString:@"pp"])
-    {
-        NSLog(@"[cordova-plugin-printer] unit not recogniced: %@", unit);
-    }
-
-    return 1.0;
-}
-
 @end

src/ios/APPPrinterRenderer.m

@@ -21,6 +21,7 @@
 
 #include "APPPrinterLayout.h"
 #include "APPPrinterRenderer.h"
+#include "APPPrinterUnit.h"
 
 @implementation APPPrinterRenderer
 
@@ -46,13 +47,13 @@
 
     if (header)
     {
-        dots = [self pointsPerUnit:header[@"unit"]];
+        dots = [APPPrinterUnit convert:header[@"unit"]];
         self.headerHeight = dots * [header[@"height"] doubleValue];
     }
 
     if (footer)
     {
-        dots = [self pointsPerUnit:header[@"unit"]];
+        dots = [APPPrinterUnit convert:header[@"unit"]];
         self.footerHeight = dots * [footer[@"height"] doubleValue];
     }
 
@@ -94,23 +95,4 @@
     [footer drawInRect:rect withAttributes:attrs];
 }
 
-- (double) pointsPerUnit:(NSString*)unit
-{
-    if ([unit isEqualToString:@"in"])
-        return 72.0;
-
-    if ([unit isEqualToString:@"mm"])
-        return 72.0 / 25.4;
-
-    if ([unit isEqualToString:@"cm"])
-        return 72.0 / 2.54;
-
-    if (![unit isEqualToString:@"pp"])
-    {
-        NSLog(@"[cordova-plugin-printer] unit not recogniced: %@", unit);
-    }
-
-    return 1.0;
-}
-
 @end

src/ios/APPPrinterUnit.h

@@ -0,0 +1,26 @@
+/*
+ Copyright 2013 appPlant GmbH
+
+ Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements.  See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership.  The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License.  You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied.  See the License for the
+ specific language governing permissions and limitations
+ under the License.
+ */
+
+@interface APPPrinterUnit : NSObject
+
++ (double) convert:(NSString *)unit;
+
+@end

src/ios/APPPrinterUnit.m

@@ -0,0 +1,45 @@
+/*
+ Copyright 2013 appPlant GmbH
+
+ Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements.  See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership.  The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License.  You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied.  See the License for the
+ specific language governing permissions and limitations
+ under the License.
+ */
+
+#include "APPPrinterUnit.h"
+
+@implementation APPPrinterUnit
+
++ (double) convert:(NSString *)unit
+{
+    if ([unit isEqualToString:@"in"])
+        return 72.0;
+
+    if ([unit isEqualToString:@"mm"])
+        return 72.0 / 25.4;
+
+    if ([unit isEqualToString:@"cm"])
+        return 72.0 / 2.54;
+
+    if (![unit isEqualToString:@"pp"])
+    {
+        NSLog(@"[cordova-plugin-printer] unit not recogniced: %@", unit);
+    }
+
+    return 1.0;
+}
+
+@end

src/ios/UIPrintInteractionController+APPPrinter.m

@@ -22,7 +22,7 @@
 #include "APPPrinterInfo.h"
 #include "UIPrintInteractionController+APPPrinter.h"
 
-#import <objc/runtime.h>
+#include <objc/runtime.h>
 
 @implementation UIPrintInteractionController (APPPrinter)