View controller wires up the User Interface and shader model

royratcliffe · Mar 4, 2010 · 07dfbe4 · 07dfbe4
1 parent 0a99240
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Showing 2 changed files with 233 additions and 25 deletions.
diff --git a/SampleAppiPhone/Classes/GlossCausticShaderViewController.h b/SampleAppiPhone/Classes/GlossCausticShaderViewController.h
@@ -25,9 +25,96 @@
 
 #import <UIKit/UIKit.h>
 
+@class GlossCausticShaderView;
+
 @interface GlossCausticShaderViewController : UIViewController
 {
+	GlossCausticShaderView *shaderView;
+	UIView *controlsView;
+	UIScrollView *scrollView;
+	UIButton *colorButton;
+	UILabel *settingsTab;
+
+	// non-caustic base colour
+	UISlider *redSlider;
+	UISlider *greenSlider;
+	UISlider *blueSlider;
+	UILabel *redLabel;
+	UILabel *greenLabel;
+	UILabel *blueLabel;
+
+	// gloss
+	UISlider *exponentialCoefficientSlider;
+	UISlider *glossReflectionPowerSlider;
+	UISlider *glossStartingWhiteSlider;
+	UISlider *glossEndingWhiteSlider;
+	UILabel *exponentialCoefficientLabel;
+	UILabel *glossReflectionPowerLabel;
+	UILabel *glossStartingWhiteLabel;
+	UILabel *glossEndingWhiteLabel;
 
+	// caustic
+	UISlider *causticHueSlider;
+	UISlider *graySaturationThresholdSlider;
+	UISlider *causticSaturationForGraysSlider;
+	UISlider *redHueThresholdSlider;
+	UISlider *blueHueThresholdSlider;
+	UISlider *blueCausticHueSlider;
+	UISlider *causticFractionDomainFactorSlider;
+	UISlider *causticFractionRangeFactorSlider;
+	UILabel *causticHueLabel;
+	UILabel *graySaturationThresholdLabel;
+	UILabel *causticSaturationForGraysLabel;
+	UILabel *redHueThresholdLabel;
+	UILabel *blueHueThresholdLabel;
+	UILabel *blueCausticHueLabel;
+	UILabel *causticFractionDomainFactorLabel;
+	UILabel *causticFractionRangeFactorLabel;
 }
 
+@property(nonatomic, retain) IBOutlet GlossCausticShaderView *shaderView;
+@property(nonatomic, retain) IBOutlet UIView *controlsView;
+@property(nonatomic, retain) IBOutlet UIScrollView *scrollView;
+@property(nonatomic, retain) IBOutlet UIButton *colorButton;
+@property(nonatomic, retain) IBOutlet UILabel *settingsTab;
+
+@property(nonatomic, retain) IBOutlet UISlider *redSlider;
+@property(nonatomic, retain) IBOutlet UISlider *greenSlider;
+@property(nonatomic, retain) IBOutlet UISlider *blueSlider;
+@property(nonatomic, retain) IBOutlet UILabel *redLabel;
+@property(nonatomic, retain) IBOutlet UILabel *greenLabel;
+@property(nonatomic, retain) IBOutlet UILabel *blueLabel;
+
+@property(nonatomic, retain) IBOutlet UISlider *exponentialCoefficientSlider;
+@property(nonatomic, retain) IBOutlet UISlider *glossReflectionPowerSlider;
+@property(nonatomic, retain) IBOutlet UISlider *glossStartingWhiteSlider;
+@property(nonatomic, retain) IBOutlet UISlider *glossEndingWhiteSlider;
+@property(nonatomic, retain) IBOutlet UILabel *exponentialCoefficientLabel;
+@property(nonatomic, retain) IBOutlet UILabel *glossReflectionPowerLabel;
+@property(nonatomic, retain) IBOutlet UILabel *glossStartingWhiteLabel;
+@property(nonatomic, retain) IBOutlet UILabel *glossEndingWhiteLabel;
+
+@property(nonatomic, retain) IBOutlet UISlider *causticHueSlider;
+@property(nonatomic, retain) IBOutlet UISlider *graySaturationThresholdSlider;
+@property(nonatomic, retain) IBOutlet UISlider *causticSaturationForGraysSlider;
+@property(nonatomic, retain) IBOutlet UISlider *redHueThresholdSlider;
+@property(nonatomic, retain) IBOutlet UISlider *blueHueThresholdSlider;
+@property(nonatomic, retain) IBOutlet UISlider *blueCausticHueSlider;
+@property(nonatomic, retain) IBOutlet UISlider *causticFractionDomainFactorSlider;
+@property(nonatomic, retain) IBOutlet UISlider *causticFractionRangeFactorSlider;
+@property(nonatomic, retain) IBOutlet UILabel *causticHueLabel;
+@property(nonatomic, retain) IBOutlet UILabel *graySaturationThresholdLabel;
+@property(nonatomic, retain) IBOutlet UILabel *causticSaturationForGraysLabel;
+@property(nonatomic, retain) IBOutlet UILabel *redHueThresholdLabel;
+@property(nonatomic, retain) IBOutlet UILabel *blueHueThresholdLabel;
+@property(nonatomic, retain) IBOutlet UILabel *blueCausticHueLabel;
+@property(nonatomic, retain) IBOutlet UILabel *causticFractionDomainFactorLabel;
+@property(nonatomic, retain) IBOutlet UILabel *causticFractionRangeFactorLabel;
+
+- (IBAction)printToConsoleButtonTapped:(id)sender;
+- (IBAction)resetToDefaultsButtonTapped:(id)sender;
+
+- (IBAction)colorSliderChanged:(id)sender;
+- (IBAction)sliderChanged:(id)sender;
+
 @end
diff --git a/SampleAppiPhone/Classes/GlossCausticShaderViewController.m b/SampleAppiPhone/Classes/GlossCausticShaderViewController.m
@@ -24,52 +24,173 @@
 //------------------------------------------------------------------------------
 
 #import "GlossCausticShaderViewController.h"
+#import "GlossCausticShaderView.h"
+
+#import "RRGlossCausticShader.h"
+#import "UIColor+RRUIKit.h"
+
+#import <QuartzCore/QuartzCore.h>
 
 @implementation GlossCausticShaderViewController
 
-// designated initialiser
-- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
+@synthesize shaderView;
+@synthesize controlsView;
+@synthesize scrollView;
+@synthesize colorButton;
+@synthesize settingsTab;
+
+@synthesize redSlider;
+@synthesize greenSlider;
+@synthesize blueSlider;
+@synthesize redLabel;
+@synthesize greenLabel;
+@synthesize blueLabel;
+
+@synthesize exponentialCoefficientSlider;
+@synthesize glossReflectionPowerSlider;
+@synthesize glossStartingWhiteSlider;
+@synthesize glossEndingWhiteSlider;
+@synthesize exponentialCoefficientLabel;
+@synthesize glossReflectionPowerLabel;
+@synthesize glossStartingWhiteLabel;
+@synthesize glossEndingWhiteLabel;
+
+@synthesize causticHueSlider;
+@synthesize graySaturationThresholdSlider;
+@synthesize causticSaturationForGraysSlider;
+@synthesize redHueThresholdSlider;
+@synthesize blueHueThresholdSlider;
+@synthesize blueCausticHueSlider;
+@synthesize causticFractionDomainFactorSlider;
+@synthesize causticFractionRangeFactorSlider;
+@synthesize causticHueLabel;
+@synthesize graySaturationThresholdLabel;
+@synthesize causticSaturationForGraysLabel;
+@synthesize redHueThresholdLabel;
+@synthesize blueHueThresholdLabel;
+@synthesize blueCausticHueLabel;
+@synthesize causticFractionDomainFactorLabel;
+@synthesize causticFractionRangeFactorLabel;
+
+static NSString *const keyPaths[] =
+{
+	@"exponentialCoefficient",
+	@"glossReflectionPower",
+	@"glossStartingWhite",
+	@"glossEndingWhite",
+	@"matcher.causticHue",
+	@"matcher.graySaturationThreshold",
+	@"matcher.causticSaturationForGrays",
+	@"matcher.redHueThreshold",
+	@"matcher.blueHueThreshold",
+	@"matcher.blueCausticHue",
+	@"matcher.causticFractionDomainFactor",
+	@"matcher.causticFractionRangeFactor",
+};
+
+- (void)syncUIWithShaderSettings
+{
+	UIColor *color = [self.shaderView.shader noncausticColor];
+	self.colorButton.backgroundColor = color;
+	self.redLabel.text = [NSString stringWithFormat:@"%.3f", self.redSlider.value = [color redComponent]];
+	self.greenLabel.text = [NSString stringWithFormat:@"%.3f", self.greenSlider.value = [color greenComponent]];
+	self.blueLabel.text = [NSString stringWithFormat:@"%.3f", self.blueSlider.value = [color blueComponent]];
+	for (NSUInteger i = 0; i < sizeof(keyPaths)/sizeof(keyPaths[0]); i++)
+	{
+		float value = [[self.shaderView.shader valueForKeyPath:keyPaths[i]] floatValue];
+		NSString *key = [[keyPaths[i] componentsSeparatedByString:@"."] lastObject];
+		UISlider *slider = [self valueForKeyPath:[key stringByAppendingString:@"Slider"]];
+		UILabel *label = [self valueForKeyPath:[key stringByAppendingString:@"Label"]];
+		label.text = [NSString stringWithFormat:@"%.3f", slider.value = value];
+	}
+	[self.shaderView update];
+}
+
+- (void)loadSettingsFromUserDefaults
 {
-	if ((self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]))
+	NSData *data = [[NSUserDefaults standardUserDefaults] objectForKey:@"Shader"];
+	if (data)
 	{
-		// Custom initialisation. Override here to perform set-up that executes
-		// before the view loads.
+		RRGlossCausticShader *shader = [NSKeyedUnarchiver unarchiveObjectWithData:data];
+		if (shader)
+		{
+			shaderView.shader = shader;
+		}
 	}
-	return self;
+}
+- (void)saveSettingsToUserDefaults
+{
+	NSData *data = [NSKeyedArchiver archivedDataWithRootObject:shaderView.shader];
+	[[NSUserDefaults standardUserDefaults] setObject:data forKey:@"Shader"];
 }
 
 - (void)viewDidLoad
 {
-	// Called after the view has been loaded. For view controllers created in
-	// code, this is after -loadView. For view controllers unarchived from a
-	// nib, this is after the view is set.
 	[super viewDidLoad];
+
+	self.scrollView.contentSize = self.controlsView.bounds.size;
+	[self.scrollView addSubview:self.controlsView];
+
+	self.colorButton.layer.borderColor = [[UIColor blackColor] CGColor];
+	self.colorButton.layer.borderWidth = 1.0f;
+
+	self.settingsTab.layer.borderColor = [[UIColor blackColor] CGColor];
+	self.settingsTab.layer.borderWidth = 1.0f;
+	self.settingsTab.layer.cornerRadius = 5.0f;
+
+	[self loadSettingsFromUserDefaults];
+	[self syncUIWithShaderSettings];
+}
+
+//------------------------------------------------------------------------------
+#pragma mark                                                             Actions
+//------------------------------------------------------------------------------
+
+- (IBAction)printToConsoleButtonTapped:(id)sender
+{
+
 }
 
-// (starting with iPhone OS 3.0)
-- (void)viewDidUnload
+- (IBAction)resetToDefaultsButtonTapped:(id)sender
 {
-	// Called after the view controller's view is released and set to nil. For
-	// example, a memory warning which causes the view to be purged. Not invoked
-	// as a result of -dealloc.
+	self.shaderView.shader = [[[RRGlossCausticShader alloc] init] autorelease];
+	[self syncUIWithShaderSettings];
+	[self saveSettingsToUserDefaults];
 }
 
-- (void)didReceiveMemoryWarning
+// non-caustic a.k.a. base colour slider
+
+- (IBAction)colorSliderChanged:(id)sender
 {
-	// Called when the parent application receives a memory warning. Default
-	// implementation releases the view if it doesn't have a superview.
-	[super didReceiveMemoryWarning];
+	UIColor *newColor = [UIColor colorWithRed:self.redSlider.value
+										green:self.greenSlider.value
+										 blue:self.blueSlider.value
+										alpha:1.0f];
+
+	self.colorButton.backgroundColor = newColor;
+
+	self.redLabel.text   = [NSString stringWithFormat:@"%.3f", [newColor redComponent]];
+	self.greenLabel.text = [NSString stringWithFormat:@"%.3f", [newColor greenComponent]];
+	self.blueLabel.text  = [NSString stringWithFormat:@"%.3f", [newColor blueComponent]];
+
+	[self.shaderView.shader setNoncausticColor:newColor];
+	[self.shaderView update];
+	[self saveSettingsToUserDefaults];
 }
 
-//------------------------------------------------------------------------------
-#pragma mark                                         UI View Controller Rotation
-//------------------------------------------------------------------------------
+// non-colour sliders
 
-- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
+- (IBAction)sliderChanged:(id)sender
 {
-	// Override to allow rotation. Default returns YES only for
-	// UIDeviceOrientationPortrait.
-	return toInterfaceOrientation == UIInterfaceOrientationPortrait;
+	UISlider *slider = sender;
+	NSString *keyPath = keyPaths[slider.tag];
+	NSString *key = [[keyPath componentsSeparatedByString:@"."] lastObject];
+	UILabel *label = [self valueForKeyPath:[key stringByAppendingString:@"Label"]];
+	label.text = [NSString stringWithFormat:@"%.3f", slider.value];
+
+	[self.shaderView.shader setValue:[NSNumber numberWithFloat:slider.value] forKeyPath:keyPath];
+	[self.shaderView update];
+	[self saveSettingsToUserDefaults];
 }
 
 @end