Initial support for header and footer

plugin.xml

@@ -75,6 +75,9 @@
         <header-file src="src/ios/APPPrinterPaper.h" />
         <source-file src="src/ios/APPPrinterPaper.m" />
 
+        <header-file src="src/ios/APPPrinterRenderer.h" />
+        <source-file src="src/ios/APPPrinterRenderer.m" />
+
         <header-file src="src/ios/UIPrintInteractionController+APPPrinter.h" />
         <source-file src="src/ios/UIPrintInteractionController+APPPrinter.m" />
 

src/ios/APPPrinter.m

@@ -22,8 +22,8 @@
 #import "APPPrinter.h"
 #import "APPPrinterItem.h"
 #import "APPPrinterPaper.h"
-#import "APPPrinterLayout.h"
-#import "UIPrintInteractionController+APPPrinter.h"
+#include "APPPrinterRenderer.h"
+#include "UIPrintInteractionController+APPPrinter.h"
 
 @interface APPPrinter ()
 
@@ -217,9 +217,8 @@
 
     if ([item isKindOfClass:UIPrintFormatter.class])
     {
-        ctrl.printFormatter =
-        [APPPrinterLayout configureFormatter:item
-                    withLayoutFromDictionary:settings[@"layout"]];
+        ctrl.printPageRenderer =
+        [[APPPrinterRenderer alloc] initWithDictionary:settings formatter:item];
     }
     else
     {

src/ios/APPPrinterRenderer.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 APPPrinterRenderer : UIPrintPageRenderer
+
+- (instancetype) initWithDictionary:(NSDictionary *)spec formatter:(UIPrintFormatter *)formatter;
+
+@end

src/ios/APPPrinterRenderer.m

@@ -0,0 +1,116 @@
+/*
+ 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 "APPPrinterLayout.h"
+#include "APPPrinterRenderer.h"
+
+@implementation APPPrinterRenderer
+
+#pragma mark -
+#pragma mark Public
+
+- (instancetype) initWithDictionary:(NSDictionary *)spec formatter:(UIPrintFormatter *)formatter
+{
+    NSDictionary* layout = spec[@"layout"];
+    NSDictionary* header = spec[@"header"];
+    NSDictionary* footer = spec[@"footer"];
+    double dots          = 0;
+
+    self = [self init];
+
+    if (layout)
+    {
+        [APPPrinterLayout configureFormatter:formatter
+                    withLayoutFromDictionary:layout];
+    }
+
+    [self addPrintFormatter:formatter startingAtPageAtIndex:0];
+
+    if (header)
+    {
+        dots = [self pointsPerUnit:header[@"unit"]];
+        self.headerHeight = dots * [header[@"height"] doubleValue];
+    }
+
+    if (footer)
+    {
+        dots = [self pointsPerUnit:header[@"unit"]];
+        self.footerHeight = dots * [footer[@"height"] doubleValue];
+    }
+
+    return self;
+}
+
+#pragma mark -
+#pragma mark Private
+
+- (void) drawHeaderForPageAtIndex:(NSInteger)index inRect:(CGRect)rect
+{
+    NSString *header = [NSString stringWithFormat:@"Sample header at page %ld", index + 1];
+    NSMutableParagraphStyle *style = [[NSParagraphStyle defaultParagraphStyle] mutableCopy];
+
+    style.alignment = NSTextAlignmentRight;
+
+    UIFont *font = [UIFont fontWithName:@"Courier" size:UIFont.labelFontSize];
+
+    NSDictionary *attrs = @{ NSFontAttributeName: font,
+                                  NSParagraphStyleAttributeName: style,
+                                  NSForegroundColorAttributeName: [UIColor redColor]};
+
+    [header drawInRect:rect withAttributes:attrs];
+}
+
+- (void) drawFooterForPageAtIndex:(NSInteger)index inRect:(CGRect)rect
+{
+    NSString *footer = @"Sample Footer";
+    NSMutableParagraphStyle *style = [[NSParagraphStyle defaultParagraphStyle] mutableCopy];
+
+    style.alignment = NSTextAlignmentCenter;
+
+    UIFont *font = [UIFont fontWithName:@"Helvetica" size:UIFont.buttonFontSize];
+
+    NSDictionary *attrs = @{ NSFontAttributeName: font,
+                             NSParagraphStyleAttributeName: style,
+                             NSForegroundColorAttributeName: [UIColor blueColor]};
+
+    [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

www/printer.js

@@ -53,6 +53,16 @@ exports.getDefaults = function () {
             maxHeight: 0,
             maxWidth: 0,
             padding: { top: 0, left: 0, right: 0, bottom: 0 }
+        },
+
+        header: {
+            unit: 'cm',
+            height: 0,
+        },
+
+        footer: {
+            unit: 'cm',
+            height: 0
         }
     };
 };