Added example for rendering page from UIView

LeavesExamples.xcodeproj/project.pbxproj

@@ -10,6 +10,7 @@
 		1D60589F0D05DD5A006BFB54 /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 1D30AB110D05D00D00671497 /* Foundation.framework */; };
 		1DF5F4E00D08C38300B7A737 /* UIKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 1DF5F4DF0D08C38300B7A737 /* UIKit.framework */; };
 		288765A50DF7441C002DB57D /* CoreGraphics.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 288765A40DF7441C002DB57D /* CoreGraphics.framework */; };
+		7D35172818913B0A00AF1404 /* UIViewExampleViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 7D35172718913B0A00AF1404 /* UIViewExampleViewController.m */; };
 		D337E308119B61A5003E5728 /* LeavesCache.m in Sources */ = {isa = PBXBuildFile; fileRef = D337E307119B61A5003E5728 /* LeavesCache.m */; };
 		D33D45A2117BDE0100BA7203 /* QuartzCore.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = D33D45A1117BDE0100BA7203 /* QuartzCore.framework */; };
 		D33D4E5B117D818100BA7203 /* LeavesView.m in Sources */ = {isa = PBXBuildFile; fileRef = D33D4E58117D818100BA7203 /* LeavesView.m */; };
@@ -35,6 +36,8 @@
 		1D6058910D05DD3D006BFB54 /* LeavesExamples.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = LeavesExamples.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		1DF5F4DF0D08C38300B7A737 /* UIKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = UIKit.framework; path = System/Library/Frameworks/UIKit.framework; sourceTree = SDKROOT; };
 		288765A40DF7441C002DB57D /* CoreGraphics.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = CoreGraphics.framework; path = System/Library/Frameworks/CoreGraphics.framework; sourceTree = SDKROOT; };
+		7D35172618913B0A00AF1404 /* UIViewExampleViewController.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = UIViewExampleViewController.h; sourceTree = "<group>"; };
+		7D35172718913B0A00AF1404 /* UIViewExampleViewController.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = UIViewExampleViewController.m; sourceTree = "<group>"; };
 		D337E306119B61A5003E5728 /* LeavesCache.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = LeavesCache.h; sourceTree = "<group>"; };
 		D337E307119B61A5003E5728 /* LeavesCache.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = LeavesCache.m; sourceTree = "<group>"; };
 		D33D45A1117BDE0100BA7203 /* QuartzCore.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = QuartzCore.framework; path = System/Library/Frameworks/QuartzCore.framework; sourceTree = SDKROOT; };
@@ -139,6 +142,8 @@
 				EA97677917EB8E3C001A0F1C /* PDFExampleViewController.m */,
 				EA97677A17EB8E3C001A0F1C /* ProceduralExampleViewController.h */,
 				EA97677B17EB8E3C001A0F1C /* ProceduralExampleViewController.m */,
+				7D35172618913B0A00AF1404 /* UIViewExampleViewController.h */,
+				7D35172718913B0A00AF1404 /* UIViewExampleViewController.m */,
 			);
 			name = Classes;
 			path = LeavesExamples/Classes;
@@ -240,6 +245,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				EA97678E17EB8E3C001A0F1C /* ProceduralExampleViewController.m in Sources */,
+				7D35172818913B0A00AF1404 /* UIViewExampleViewController.m in Sources */,
 				D33D4E5B117D818100BA7203 /* LeavesView.m in Sources */,
 				EA97678A17EB8E3C001A0F1C /* ExamplesViewController.m in Sources */,
 				EA97678D17EB8E3C001A0F1C /* PDFExampleViewController.m in Sources */,

LeavesExamples/Classes/ExamplesViewController.m

@@ -10,8 +10,9 @@
 #import "PDFExampleViewController.h"
 #import "ImageExampleViewController.h"
 #import "ProceduralExampleViewController.h"
+#import "UIViewExampleViewController.h"
 
-enum {ExamplePDF, ExampleImage, ExampleProcedural, NumExamples};
+enum {ExamplePDF, ExampleImage, ExampleProcedural, ExampleUIView, NumExamples};
 
 @implementation ExamplesViewController
 
@@ -45,6 +46,7 @@ - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(N
 		case ExamplePDF: cell.textLabel.text = @"PDF example"; break;
 		case ExampleImage: cell.textLabel.text = @"Image example"; break;
 		case ExampleProcedural: cell.textLabel.text = @"Procedural example"; break;
+        case ExampleUIView: cell.textLabel.text = @"UIView example"; break;
 		default: cell.textLabel.text = @"";
 	}    
     return cell;
@@ -64,6 +66,9 @@ - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath
 		case ExampleProcedural:
 			viewController = [[[ProceduralExampleViewController alloc] init] autorelease]; 
 			break;
+        case ExampleUIView:
+			viewController = [[[UIViewExampleViewController alloc] init] autorelease];
+			break;
 		default: 
 			viewController = nil;
 	}

LeavesExamples/Classes/UIViewExampleViewController.h

@@ -0,0 +1,13 @@
+//
+//  UIViewExampleViewController.h
+//  LeavesExamples
+//
+//  Created by Aemotion on 23-01-14.
+//  Copyright (c) 2014 Tom Brow. All rights reserved.
+//
+
+#import "LeavesViewController.h"
+
+@interface UIViewExampleViewController : LeavesViewController
+
+@end

LeavesExamples/Classes/UIViewExampleViewController.m

@@ -0,0 +1,45 @@
+//
+//  UIViewExampleViewController.m
+//  LeavesExamples
+//
+//  Created by Aemotion on 23-01-14.
+//  Copyright (c) 2014 Tom Brow. All rights reserved.
+//
+
+#import "UIViewExampleViewController.h"
+
+@implementation UIViewExampleViewController
+
+#pragma mark LeavesViewDataSource
+
+- (NSUInteger)numberOfPagesInLeavesView:(LeavesView*)leavesView {
+	return 10;
+}
+
+- (void) renderPageAtIndex:(NSUInteger)index inContext:(CGContextRef)ctx {
+
+    CGRect bounds = CGContextGetClipBoundingBox(ctx);
+
+    UIView* renderView = [[[UIView alloc] initWithFrame:bounds] autorelease];
+    renderView.backgroundColor = [UIColor colorWithHue:index/10.0
+                                        saturation:0.8
+                                        brightness:0.8
+                                             alpha:1.0];
+
+
+    UILabel* label = [[[UILabel alloc] initWithFrame:bounds] autorelease];
+    label.text = [NSString stringWithFormat:@"Page number %d", index];
+    label.textAlignment = UITextAlignmentCenter;
+    [renderView addSubview:label];
+
+    // View will render upside down if we omit this:
+    CGAffineTransform verticalFlip = CGAffineTransformMake(1, 0, 0, -1, 0, bounds.size.height);
+    CGContextConcatCTM(ctx, verticalFlip);
+
+
+    // We call renderInContext on the layer to draw the view onto the context
+    [renderView.layer renderInContext:ctx];
+}
+
+
+@end