From 1824ae6360c9ce1897e75404163d39df08ee5fbf Mon Sep 17 00:00:00 2001
From: bamse16 <marius@marius.me.uk>
Date: Sat, 11 Apr 2009 09:14:42 +0000
Subject: Added printing support via WebKit WebView

---
 Source/MGTemplateStandardFilters.m | 97 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100644 Source/MGTemplateStandardFilters.m

(limited to 'Source/MGTemplateStandardFilters.m')

diff --git a/Source/MGTemplateStandardFilters.m b/Source/MGTemplateStandardFilters.m
new file mode 100644
index 00000000..45f1d51d
--- /dev/null
+++ b/Source/MGTemplateStandardFilters.m
@@ -0,0 +1,97 @@
+//
+//  MGTemplateStandardFilters.m
+//
+//  Created by Matt Gemmell on 13/05/2008.
+//  Copyright 2008 Instinctive Code. All rights reserved.
+//
+
+#import "MGTemplateStandardFilters.h"
+
+
+#define UPPERCASE		@"uppercase"
+#define LOWERCASE		@"lowercase"
+#define CAPITALIZED		@"capitalized"
+#define DATE_FORMAT		@"date_format"
+#define COLOR_FORMAT	@"color_format"
+
+
+@implementation MGTemplateStandardFilters
+
+
+- (NSArray *)filters
+{
+	return [NSArray arrayWithObjects:
+			UPPERCASE, LOWERCASE, CAPITALIZED, 
+			DATE_FORMAT, COLOR_FORMAT, 
+			nil];
+}
+
+
+- (NSObject *)filterInvoked:(NSString *)filter withArguments:(NSArray *)args onValue:(NSObject *)value
+{
+	if ([filter isEqualToString:UPPERCASE]) {
+		return [[NSString stringWithFormat:@"%@", value] uppercaseString];
+		
+	} else if ([filter isEqualToString:LOWERCASE]) {
+		return [[NSString stringWithFormat:@"%@", value] lowercaseString];
+		
+	} else if ([filter isEqualToString:CAPITALIZED]) {
+		return [[NSString stringWithFormat:@"%@", value] capitalizedString];
+		
+	} else if ([filter isEqualToString:DATE_FORMAT]) {
+		// Formats NSDates according to Unicode syntax: 
+		// http://unicode.org/reports/tr35/tr35-4.html#Date_Format_Patterns 
+		// e.g. "dd MM yyyy" etc.
+		if ([value isKindOfClass:[NSDate class]] && [args count] == 1) {
+			NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease];
+			[dateFormatter setFormatterBehavior:NSDateFormatterBehavior10_4];
+			NSString *format = [args objectAtIndex:0];
+			[dateFormatter setDateFormat:format];
+			return [dateFormatter stringFromDate:(NSDate *)value];
+		}
+		
+	} else if ([filter isEqualToString:COLOR_FORMAT]) {
+#if TARGET_OS_IPHONE
+        if ([value isKindOfClass:[UIColor class]] && [args count] == 1) {
+#else
+		if ([value isKindOfClass:[NSColor class]] && [args count] == 1) {
+#endif
+			NSString *format = [[args objectAtIndex:0] lowercaseString];
+			if ([format isEqualToString:@"hex"]) {
+				// Output color in hex format RRGGBB (without leading # character).
+#if TARGET_OS_IPHONE
+                CGColorRef color = [(UIColor *)value CGColor];
+                CGColorSpaceRef colorSpace = CGColorGetColorSpace(color);
+                CGColorSpaceModel colorSpaceModel = CGColorSpaceGetModel(colorSpace);
+                
+                if (colorSpaceModel != kCGColorSpaceModelRGB)
+                    return @"000000";
+                
+                const CGFloat *components = CGColorGetComponents(color);
+                NSString *colorHex = [NSString stringWithFormat:@"%02x%02x%02x",
+                                      (int)(components[0] * 255),
+                                      (int)(components[1] * 255),
+                                      (int)(components[2] * 255)];
+                return colorHex;
+#else
+				NSColor *color = [(NSColor *)value colorUsingColorSpaceName:NSCalibratedRGBColorSpace];
+				if (!color) { // happens if the colorspace couldn't be converted
+					return @"000000"; // black
+				} else {
+					NSString *colorHex = [NSString stringWithFormat:@"%02x%02x%02x", 
+										  (int)([color redComponent] * 255), 
+										  (int)([color greenComponent] * 255), 
+										  (int)([color blueComponent] * 255)];
+					return colorHex;
+				}
+#endif
+			}
+		}
+		
+	}
+	
+	return value;
+}
+
+
+@end
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