mirror of
https://github.com/SoPat712/YTLitePlus.git
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added files via upload
This commit is contained in:
Balackburn
@@ -0,0 +1,37 @@
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//
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// FHSSnapshotNodes.h
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// FLEX
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//
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// Created by Tanner Bennett on 1/7/20.
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//
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#import "FHSViewSnapshot.h"
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#import <SceneKit/SceneKit.h>
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NS_ASSUME_NONNULL_BEGIN
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/// Container that holds references to the SceneKit nodes associated with a snapshot.
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@interface FHSSnapshotNodes : NSObject
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+ (instancetype)snapshot:(FHSViewSnapshot *)snapshot depth:(NSInteger)depth;
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@property (nonatomic, readonly) FHSViewSnapshot *snapshotItem;
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@property (nonatomic, readonly) NSInteger depth;
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/// The view image itself
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@property (nonatomic, nullable) SCNNode *snapshot;
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/// Goes on top of the snapshot, has rounded top corners
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@property (nonatomic, nullable) SCNNode *header;
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/// The bounding box drawn around the snapshot
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@property (nonatomic, nullable) SCNNode *border;
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/// Used to indicate when a view is selected
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@property (nonatomic, getter=isHighlighted) BOOL highlighted;
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/// Used to indicate when a view is de-emphasized
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@property (nonatomic, getter=isDimmed) BOOL dimmed;
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@property (nonatomic) BOOL forceHideHeader;
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@end
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NS_ASSUME_NONNULL_END
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@@ -0,0 +1,90 @@
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//
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// FHSSnapshotNodes.m
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// FLEX
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//
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// Created by Tanner Bennett on 1/7/20.
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//
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#import "FHSSnapshotNodes.h"
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#import "SceneKit+Snapshot.h"
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@interface FHSSnapshotNodes ()
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@property (nonatomic, nullable) SCNNode *highlight;
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@property (nonatomic, nullable) SCNNode *dimming;
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@end
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@implementation FHSSnapshotNodes
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+ (instancetype)snapshot:(FHSViewSnapshot *)snapshot depth:(NSInteger)depth {
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FHSSnapshotNodes *nodes = [self new];
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nodes->_snapshotItem = snapshot;
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nodes->_depth = depth;
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return nodes;
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}
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- (void)setHighlighted:(BOOL)highlighted {
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if (_highlighted != highlighted) {
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_highlighted = highlighted;
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if (highlighted) {
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if (!self.highlight) {
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// Create highlight node
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self.highlight = [SCNNode
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highlight:self.snapshotItem
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color:[UIColor.blueColor colorWithAlphaComponent:0.5]
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];
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}
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// Add add highlight node, remove dimming node if dimmed
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[self.snapshot addChildNode:self.highlight];
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if (self.isDimmed) {
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[self.dimming removeFromParentNode];
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}
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} else {
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// Remove highlight node, add back dimming node if dimmed
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[self.highlight removeFromParentNode];
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if (self.isDimmed) {
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[self.snapshot addChildNode:self.dimming];
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}
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}
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}
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}
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- (void)setDimmed:(BOOL)dimmed {
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if (_dimmed != dimmed) {
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_dimmed = dimmed;
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if (dimmed) {
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if (!self.dimming) {
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// Create dimming node
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self.dimming = [SCNNode
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highlight:self.snapshotItem
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color:[UIColor.blackColor colorWithAlphaComponent:0.5]
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];
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}
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// Add add dimming node if not highlighted
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if (!self.isHighlighted) {
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[self.snapshot addChildNode:self.dimming];
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}
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} else {
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// Remove dimming node (if not already highlighted)
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if (!self.isHighlighted) {
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[self.dimming removeFromParentNode];
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}
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}
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}
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}
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- (void)setForceHideHeader:(BOOL)forceHideHeader {
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if (_forceHideHeader != forceHideHeader) {
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_forceHideHeader = forceHideHeader;
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if (self.header.parentNode) {
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self.header.hidden = YES;
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[self.header removeFromParentNode];
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} else {
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self.header.hidden = NO;
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[self.snapshot addChildNode:self.header];
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}
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}
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}
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@end
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@@ -0,0 +1,62 @@
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//
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// SceneKit+Snapshot.h
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// FLEX
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//
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// Created by Tanner Bennett on 1/8/20.
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//
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#import <SceneKit/SceneKit.h>
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#import "FHSViewSnapshot.h"
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@class FHSSnapshotNodes;
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extern CGFloat const kFHSSmallZOffset;
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#pragma mark SCNNode
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@interface SCNNode (Snapshot)
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/// @return the nearest ancestor snapshot node starting at this node
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@property (nonatomic, readonly) SCNNode *nearestAncestorSnapshot;
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/// @return a node that renders a highlight overlay over a specified snapshot
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+ (instancetype)highlight:(FHSViewSnapshot *)view color:(UIColor *)color;
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/// @return a node that renders a snapshot image
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+ (instancetype)snapshot:(FHSViewSnapshot *)view;
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/// @return a node that draws a line between two vertices
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+ (instancetype)lineFrom:(SCNVector3)v1 to:(SCNVector3)v2 color:(UIColor *)lineColor;
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/// @return a node that can be used to render a colored border around the specified node
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- (instancetype)borderWithColor:(UIColor *)color;
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/// @return a node that renders a header above a snapshot node
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/// using the title text from the view, if specified
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+ (instancetype)header:(FHSViewSnapshot *)view;
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/// @return a SceneKit node that recursively renders a hierarchy
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/// of UI elements starting at the specified snapshot
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+ (instancetype)snapshot:(FHSViewSnapshot *)view
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parent:(FHSViewSnapshot *)parentView
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parentNode:(SCNNode *)parentNode
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root:(SCNNode *)rootNode
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depth:(NSInteger *)depthOut
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nodesMap:(NSMutableDictionary<NSString *, FHSSnapshotNodes *> *)nodesMap
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hideHeaders:(BOOL)hideHeaders;
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@end
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#pragma mark SCNShape
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@interface SCNShape (Snapshot)
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/// @return a shape with the given path, 0 extrusion depth, and a double-sided
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/// material with the given diffuse contents inserted at index 0
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+ (instancetype)shapeWithPath:(UIBezierPath *)path materialDiffuse:(id)contents;
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/// @return a shape that is used to render the background of the snapshot header
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+ (instancetype)nameHeader:(UIColor *)color frame:(CGRect)frame corners:(CGFloat)cornerRadius;
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@end
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#pragma mark SCNText
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@interface SCNText (Snapshot)
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/// @return text geometry used to render text inside the snapshot header
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+ (instancetype)labelGeometry:(NSString *)text font:(UIFont *)font;
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@end
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@@ -0,0 +1,278 @@
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//
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// SceneKit+Snapshot.m
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// FLEX
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//
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// Created by Tanner Bennett on 1/8/20.
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//
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#import "SceneKit+Snapshot.h"
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#import "FHSSnapshotNodes.h"
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/// This value is chosen such that this offset can be applied to avoid
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/// z-fighting amongst nodes at the same z-position, but small enough
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/// that they appear to visually be on the same plane.
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CGFloat const kFHSSmallZOffset = 0.05;
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CGFloat const kHeaderVerticalInset = 8.0;
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#pragma mark SCNGeometry
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@interface SCNGeometry (SnapshotPrivate)
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@end
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@implementation SCNGeometry (SnapshotPrivate)
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- (void)addDoubleSidedMaterialWithDiffuseContents:(id)contents {
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SCNMaterial *material = [SCNMaterial new];
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material.doubleSided = YES;
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material.diffuse.contents = contents;
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[self insertMaterial:material atIndex:0];
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}
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@end
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#pragma mark SCNNode
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@implementation SCNNode (Snapshot)
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- (SCNNode *)nearestAncestorSnapshot {
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SCNNode *node = self;
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while (!node.name && node) {
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node = node.parentNode;
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}
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return node;
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}
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+ (instancetype)shapeNodeWithSize:(CGSize)size materialDiffuse:(id)contents offsetZ:(BOOL)offsetZ {
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UIBezierPath *path = [UIBezierPath bezierPathWithRect:CGRectMake(
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0, 0, size.width, size.height
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)];
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SCNShape *shape = [SCNShape shapeWithPath:path materialDiffuse:contents];
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SCNNode *node = [SCNNode nodeWithGeometry:shape];
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if (offsetZ) {
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node.position = SCNVector3Make(0, 0, kFHSSmallZOffset);
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}
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return node;
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}
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+ (instancetype)highlight:(FHSViewSnapshot *)view color:(UIColor *)color {
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return [self shapeNodeWithSize:view.frame.size materialDiffuse:color offsetZ:YES];
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}
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+ (instancetype)snapshot:(FHSViewSnapshot *)view {
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id image = view.snapshotImage;
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return [self shapeNodeWithSize:view.frame.size materialDiffuse:image offsetZ:NO];
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}
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+ (instancetype)lineFrom:(SCNVector3)v1 to:(SCNVector3)v2 color:(UIColor *)lineColor {
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SCNVector3 vertices[2] = { v1, v2 };
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int32_t _indices[2] = { 0, 1 };
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NSData *indices = [NSData dataWithBytes:_indices length:sizeof(_indices)];
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SCNGeometrySource *source = [SCNGeometrySource geometrySourceWithVertices:vertices count:2];
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SCNGeometryElement *element = [SCNGeometryElement
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geometryElementWithData:indices
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primitiveType:SCNGeometryPrimitiveTypeLine
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primitiveCount:2
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bytesPerIndex:sizeof(int32_t)
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];
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SCNGeometry *geometry = [SCNGeometry geometryWithSources:@[source] elements:@[element]];
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[geometry addDoubleSidedMaterialWithDiffuseContents:lineColor];
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return [SCNNode nodeWithGeometry:geometry];
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}
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- (instancetype)borderWithColor:(UIColor *)color {
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struct { SCNVector3 min, max; } bb;
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[self getBoundingBoxMin:&bb.min max:&bb.max];
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SCNVector3 topLeft = SCNVector3Make(bb.min.x, bb.max.y, kFHSSmallZOffset);
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SCNVector3 bottomLeft = SCNVector3Make(bb.min.x, bb.min.y, kFHSSmallZOffset);
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SCNVector3 topRight = SCNVector3Make(bb.max.x, bb.max.y, kFHSSmallZOffset);
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SCNVector3 bottomRight = SCNVector3Make(bb.max.x, bb.min.y, kFHSSmallZOffset);
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SCNNode *top = [SCNNode lineFrom:topLeft to:topRight color:color];
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SCNNode *left = [SCNNode lineFrom:bottomLeft to:topLeft color:color];
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SCNNode *bottom = [SCNNode lineFrom:bottomLeft to:bottomRight color:color];
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SCNNode *right = [SCNNode lineFrom:bottomRight to:topRight color:color];
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SCNNode *border = [SCNNode new];
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[border addChildNode:top];
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[border addChildNode:left];
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[border addChildNode:bottom];
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[border addChildNode:right];
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return border;
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}
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+ (instancetype)header:(FHSViewSnapshot *)view {
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SCNText *text = [SCNText labelGeometry:view.title font:[UIFont boldSystemFontOfSize:13.0]];
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SCNNode *textNode = [SCNNode nodeWithGeometry:text];
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struct { SCNVector3 min, max; } bb;
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[textNode getBoundingBoxMin:&bb.min max:&bb.max];
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CGFloat textWidth = bb.max.x - bb.min.x;
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CGFloat textHeight = bb.max.y - bb.min.y;
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CGFloat snapshotWidth = view.frame.size.width;
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CGFloat headerWidth = MAX(snapshotWidth, textWidth);
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CGRect frame = CGRectMake(0, 0, headerWidth, textHeight + (kHeaderVerticalInset * 2));
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SCNNode *headerNode = [SCNNode nodeWithGeometry:[SCNShape
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nameHeader:view.headerColor frame:frame corners:8
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]];
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[headerNode addChildNode:textNode];
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textNode.position = SCNVector3Make(
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(frame.size.width / 2.f) - (textWidth / 2.f),
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(frame.size.height / 2.f) - (textHeight / 2.f),
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kFHSSmallZOffset
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);
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headerNode.position = SCNVector3Make(
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(snapshotWidth / 2.f) - (headerWidth / 2.f),
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view.frame.size.height,
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kFHSSmallZOffset
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);
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return headerNode;
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}
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+ (instancetype)snapshot:(FHSViewSnapshot *)view
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parent:(FHSViewSnapshot *)parent
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parentNode:(SCNNode *)parentNode
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root:(SCNNode *)rootNode
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depth:(NSInteger *)depthOut
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nodesMap:(NSMutableDictionary<NSString *, FHSSnapshotNodes *> *)nodesMap
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hideHeaders:(BOOL)hideHeaders {
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NSInteger const depth = *depthOut;
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// Ignore elements that are not visible.
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// These should appear in the list, but not in the 3D view.
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if (view.hidden || CGSizeEqualToSize(view.frame.size, CGSizeZero)) {
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return nil;
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}
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// Create a node whose contents are the snapshot of the element
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SCNNode *node = [self snapshot:view];
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node.name = view.view.identifier;
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// Begin building node tree
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FHSSnapshotNodes *nodes = [FHSSnapshotNodes snapshot:view depth:depth];
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nodes.snapshot = node;
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// The node must be added to the root node
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// for the coordinate space calculations below to work
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[rootNode addChildNode:node];
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node.position = ({
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// Flip the y-coordinate since SceneKit has a
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// flipped version of the UIKit coordinate system
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CGRect pframe = parent ? parent.frame : CGRectZero;
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CGFloat y = parent ? pframe.size.height - CGRectGetMaxY(view.frame) : 0;
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// To simplify calculating the z-axis spacing between the layers, we make
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// each snapshot node a direct child of the root rather than embedding
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// the nodes in their parent nodes in the same structure as the UI elements
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// themselves. With this flattened hierarchy, the z-position can be
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// calculated for every node simply by multiplying the spacing by the depth.
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//
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// `parentSnapshotNode` as referenced here is NOT the actual parent node
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// of `node`, it is the node corresponding to the parent of the UI element.
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// It is used to convert from frame coordinates, which are relative to
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// the bounds of the parent, to coordinates relative to the root node.
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SCNVector3 positionRelativeToParent = SCNVector3Make(view.frame.origin.x, y, 0);
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SCNVector3 positionRelativeToRoot;
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if (parent) {
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positionRelativeToRoot = [rootNode convertPosition:positionRelativeToParent fromNode:parentNode];
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} else {
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positionRelativeToRoot = positionRelativeToParent;
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}
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positionRelativeToRoot.z = 50 * depth;
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positionRelativeToRoot;
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});
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// Make border node
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nodes.border = [node borderWithColor:view.headerColor];
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[node addChildNode:nodes.border];
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// Make header node
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nodes.header = [SCNNode header:view];
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[node addChildNode:nodes.header];
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if (hideHeaders) {
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nodes.header.hidden = YES;
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}
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nodesMap[view.view.identifier] = nodes;
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NSMutableArray<FHSViewSnapshot *> *checkForIntersect = [NSMutableArray new];
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NSInteger maxChildDepth = depth;
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// Recurse to child nodes; overlapping children have higher depths
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for (FHSViewSnapshot *child in view.children) {
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NSInteger childDepth = depth + 1;
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// Children that intersect a sibling are rendered
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// in a separate layer above the previous siblings
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for (FHSViewSnapshot *sibling in checkForIntersect) {
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if (CGRectIntersectsRect(sibling.frame, child.frame)) {
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childDepth = maxChildDepth + 1;
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break;
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}
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}
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id didMakeNode = [SCNNode
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snapshot:child
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parent:view
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parentNode:node
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root:rootNode
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depth:&childDepth
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nodesMap:nodesMap
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hideHeaders:hideHeaders
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];
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if (didMakeNode) {
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maxChildDepth = MAX(childDepth, maxChildDepth);
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[checkForIntersect addObject:child];
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}
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}
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*depthOut = maxChildDepth;
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return node;
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}
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@end
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#pragma mark SCNShape
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@implementation SCNShape (Snapshot)
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+ (instancetype)shapeWithPath:(UIBezierPath *)path materialDiffuse:(id)contents {
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SCNShape *shape = [SCNShape shapeWithPath:path extrusionDepth:0];
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[shape addDoubleSidedMaterialWithDiffuseContents:contents];
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return shape;
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}
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+ (instancetype)nameHeader:(UIColor *)color frame:(CGRect)frame corners:(CGFloat)radius {
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UIBezierPath *path = [UIBezierPath
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bezierPathWithRoundedRect:frame
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byRoundingCorners:UIRectCornerBottomLeft | UIRectCornerBottomRight
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cornerRadii:CGSizeMake(radius, radius)
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];
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return [SCNShape shapeWithPath:path materialDiffuse:color];
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}
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@end
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#pragma mark SCNText
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@implementation SCNText (Snapshot)
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+ (instancetype)labelGeometry:(NSString *)text font:(UIFont *)font {
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NSParameterAssert(text);
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SCNText *label = [self new];
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label.string = text;
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label.font = font;
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label.alignmentMode = kCAAlignmentCenter;
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label.truncationMode = kCATruncationEnd;
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return label;
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}
|
||||
|
||||
@end
|
||||
Reference in New Issue
Block a user