533 lines
18 KiB
Objective-C
533 lines
18 KiB
Objective-C
/*
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* Copyright [2019] [Doric.Pub]
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//
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// Created by pengfei.zhou on 2019/10/23.
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//
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#import "DoricLayouts.h"
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#import <objc/runtime.h>
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#import "UIView+Doric.h"
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DoricMargin DoricMarginMake(CGFloat left, CGFloat top, CGFloat right, CGFloat bottom) {
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DoricMargin margin;
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margin.left = left;
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margin.top = top;
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margin.right = right;
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margin.bottom = bottom;
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return margin;
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}
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@implementation DoricLayoutConfig
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- (instancetype)init {
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if (self = [super init]) {
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_widthSpec = DoricLayoutExact;
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_heightSpec = DoricLayoutExact;
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}
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return self;
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}
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- (instancetype)initWithWidth:(DoricLayoutSpec)width height:(DoricLayoutSpec)height {
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if (self = [super init]) {
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_widthSpec = width;
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_heightSpec = height;
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}
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return self;
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}
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- (instancetype)initWithWidth:(DoricLayoutSpec)width height:(DoricLayoutSpec)height margin:(DoricMargin)margin {
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if (self = [super init]) {
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_widthSpec = width;
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_heightSpec = height;
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_margin = margin;
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}
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return self;
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}
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@end
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@interface DoricLayoutContainer ()
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@property(nonatomic, assign) CGFloat contentWidth;
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@property(nonatomic, assign) CGFloat contentHeight;
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@property(nonatomic, assign) NSUInteger contentWeight;
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@end
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@implementation DoricLayoutContainer
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- (void)layoutSubviews {
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if ([self.superview isKindOfClass:[DoricLayoutContainer class]]) {
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[self.superview layoutSubviews];
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} else {
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CGSize size = [self sizeThatFits:CGSizeMake(self.superview.width, self.superview.height)];
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[self layout:size];
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}
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}
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- (CGSize)sizeThatFits:(CGSize)size {
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CGFloat width = self.width;
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CGFloat height = self.height;
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DoricLayoutConfig *config = self.layoutConfig;
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if (!config) {
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config = [DoricLayoutConfig new];
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}
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if (config.widthSpec == DoricLayoutAtMost
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|| config.widthSpec == DoricLayoutWrapContent) {
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width = size.width - config.margin.left - config.margin.right;
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}
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if (config.heightSpec == DoricLayoutAtMost
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|| config.heightSpec == DoricLayoutWrapContent) {
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height = size.height - config.margin.top - config.margin.bottom;
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}
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CGSize contentSize = [self sizeContent:CGSizeMake(width, height)];
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if (config.widthSpec == DoricLayoutWrapContent) {
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width = contentSize.width;
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}
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if (config.heightSpec == DoricLayoutWrapContent) {
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height = contentSize.height;
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}
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return CGSizeMake(width, height);
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}
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- (CGSize)sizeContent:(CGSize)size {
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return size;
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}
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- (void)layout:(CGSize)targetSize {
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self.width = targetSize.width;
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self.height = targetSize.height;
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}
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@end
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@interface DoricStackView ()
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@property(nonatomic, assign) CGFloat contentWidth;
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@property(nonatomic, assign) CGFloat contentHeight;
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@end
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@implementation DoricStackView
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- (CGSize)sizeContent:(CGSize)size {
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CGFloat contentWidth = 0;
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CGFloat contentHeight = 0;
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for (UIView *child in self.subviews) {
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if (child.isHidden) {
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continue;
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}
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DoricLayoutConfig *childConfig = child.layoutConfig;
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if (!childConfig) {
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childConfig = [DoricLayoutConfig new];
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}
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CGSize childSize = CGSizeMake(child.width, child.height);
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if ([child isKindOfClass:[DoricLayoutContainer class]]
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|| childConfig.widthSpec == DoricLayoutWrapContent
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|| childConfig.heightSpec == DoricLayoutWrapContent) {
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childSize = [child sizeThatFits:CGSizeMake(size.width, size.height - contentHeight)];
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}
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if (childConfig.widthSpec == DoricLayoutExact) {
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childSize.width = child.width;
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} else if (childConfig.widthSpec == DoricLayoutAtMost) {
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childSize.width = size.width;
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}
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if (childConfig.heightSpec == DoricLayoutExact) {
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childSize.height = child.height;
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} else if (childConfig.heightSpec == DoricLayoutAtMost) {
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childSize.height = size.height - contentHeight;
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}
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if (childConfig.weight) {
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childSize.height = child.height;
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}
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contentWidth = MAX(contentWidth, childSize.width + childConfig.margin.left + childConfig.margin.right);
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contentHeight = MAX(contentHeight, childSize.height + childConfig.margin.top + childConfig.margin.bottom);
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}
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self.contentWidth = contentWidth;
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self.contentHeight = contentHeight;
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return CGSizeMake(contentWidth, contentHeight);
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}
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- (void)layout:(CGSize)targetSize {
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for (UIView *child in self.subviews) {
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if (child.isHidden) {
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continue;
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}
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DoricLayoutConfig *childConfig = child.layoutConfig;
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if (!childConfig) {
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childConfig = [DoricLayoutConfig new];
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}
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CGSize size = [child sizeThatFits:CGSizeMake(targetSize.width, targetSize.height)];
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if (childConfig.widthSpec == DoricLayoutExact) {
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size.width = child.width;
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}
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if (childConfig.heightSpec == DoricLayoutExact) {
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size.height = child.height;
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}
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if (childConfig.widthSpec == DoricLayoutExact) {
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size.width = child.width;
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} else if (childConfig.widthSpec == DoricLayoutAtMost) {
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size.width = targetSize.width;
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}
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if (childConfig.heightSpec == DoricLayoutExact) {
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size.height = child.height;
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} else if (childConfig.heightSpec == DoricLayoutAtMost) {
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size.height = targetSize.height;
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}
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child.width = size.width;
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child.height = size.height;
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DoricGravity gravity = childConfig.alignment | self.gravity;
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if ((gravity & LEFT) == LEFT) {
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child.left = 0;
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} else if ((gravity & RIGHT) == RIGHT) {
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child.right = targetSize.width;
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} else if ((gravity & CENTER_X) == CENTER_X) {
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child.centerX = targetSize.width / 2;
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} else {
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if (childConfig.margin.left) {
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child.left = childConfig.margin.left;
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} else if (childConfig.margin.right) {
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child.right = targetSize.width - childConfig.margin.right;
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}
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}
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if ((gravity & TOP) == TOP) {
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child.top = 0;
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} else if ((gravity & BOTTOM) == BOTTOM) {
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child.bottom = targetSize.height;
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} else if ((gravity & CENTER_Y) == CENTER_Y) {
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child.centerY = targetSize.height / 2;
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} else {
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if (childConfig.margin.top) {
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child.top = childConfig.margin.top;
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} else if (childConfig.margin.bottom) {
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child.bottom = targetSize.height - childConfig.margin.bottom;
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}
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}
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if ([child isKindOfClass:[DoricLayoutContainer class]]) {
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[(DoricLayoutContainer *) child layout:size];
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}
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}
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self.width = targetSize.width;
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self.height = targetSize.height;
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}
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@end
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@implementation DoricLinearView
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@end
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@implementation DoricVLayoutView
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- (CGSize)sizeContent:(CGSize)size {
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CGFloat contentWidth = 0;
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CGFloat contentHeight = 0;
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NSUInteger contentWeight = 0;
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for (UIView *child in self.subviews) {
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if (child.isHidden) {
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continue;
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}
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DoricLayoutConfig *childConfig = child.layoutConfig;
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if (!childConfig) {
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childConfig = [DoricLayoutConfig new];
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}
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CGSize childSize = CGSizeMake(child.width, child.height);
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if ([child isKindOfClass:[DoricLayoutContainer class]]
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|| childConfig.widthSpec == DoricLayoutWrapContent
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|| childConfig.heightSpec == DoricLayoutWrapContent) {
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childSize = [child sizeThatFits:CGSizeMake(size.width, size.height - contentHeight)];
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}
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if (childConfig.widthSpec == DoricLayoutExact) {
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childSize.width = child.width;
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} else if (childConfig.widthSpec == DoricLayoutAtMost) {
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childSize.width = size.width;
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}
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if (childConfig.heightSpec == DoricLayoutExact) {
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childSize.height = child.height;
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} else if (childConfig.heightSpec == DoricLayoutAtMost) {
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childSize.height = size.height - contentHeight;
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}
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if (childConfig.weight) {
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childSize.height = child.height;
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}
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contentWidth = MAX(contentWidth, childSize.width + childConfig.margin.left + childConfig.margin.right);
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contentHeight += childSize.height + self.space + childConfig.margin.top + childConfig.margin.bottom;
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contentWeight += childConfig.weight;
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}
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contentHeight -= self.space;
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self.contentWidth = contentWidth;
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self.contentHeight = contentHeight;
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self.contentWeight = contentWeight;
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if (contentWeight) {
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contentHeight = size.height;
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}
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return CGSizeMake(contentWidth, contentHeight);
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}
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- (void)layout:(CGSize)targetSize {
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CGFloat yStart = 0;
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if ((self.gravity & TOP) == TOP) {
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yStart = 0;
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} else if ((self.gravity & BOTTOM) == BOTTOM) {
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yStart = targetSize.height - self.contentHeight;
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} else if ((self.gravity & CENTER_Y) == CENTER_Y) {
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yStart = (targetSize.height - self.contentHeight) / 2;
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}
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CGFloat remain = targetSize.height - self.contentHeight;
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for (UIView *child in self.subviews) {
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if (child.isHidden) {
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continue;
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}
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DoricLayoutConfig *childConfig = child.layoutConfig;
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if (!childConfig) {
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childConfig = [DoricLayoutConfig new];
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}
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CGSize size = [child sizeThatFits:CGSizeMake(targetSize.width, targetSize.height - yStart)];
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if (childConfig.widthSpec == DoricLayoutExact) {
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size.width = child.width;
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}
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if (childConfig.heightSpec == DoricLayoutExact) {
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size.height = child.height;
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}
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if (childConfig.widthSpec == DoricLayoutExact) {
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size.width = child.width;
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} else if (childConfig.widthSpec == DoricLayoutAtMost) {
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size.width = targetSize.width;
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}
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if (childConfig.heightSpec == DoricLayoutExact) {
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size.height = child.height;
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} else if (childConfig.heightSpec == DoricLayoutAtMost) {
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size.height = targetSize.height - yStart;
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}
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if (childConfig.weight) {
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size.height = child.height;
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}
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if (childConfig.weight) {
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size.height += remain / self.contentWeight * childConfig.weight;
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}
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child.width = size.width;
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child.height = size.height;
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DoricGravity gravity = childConfig.alignment | self.gravity;
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if ((gravity & LEFT) == LEFT) {
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child.left = 0;
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} else if ((gravity & RIGHT) == RIGHT) {
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child.right = self.width;
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} else if ((gravity & CENTER_X) == CENTER_X) {
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child.centerX = targetSize.width / 2;
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} else {
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if (childConfig.margin.left) {
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child.left = childConfig.margin.left;
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} else if (childConfig.margin.right) {
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child.right = targetSize.width - childConfig.margin.right;
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}
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}
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if (childConfig.margin.top) {
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yStart += childConfig.margin.top;
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}
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child.top = yStart;
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yStart = child.bottom + self.space;
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if (childConfig.margin.bottom) {
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yStart += childConfig.margin.bottom;
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}
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if ([child isKindOfClass:[DoricLayoutContainer class]]) {
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[(DoricLayoutContainer *) child layout:size];
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}
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}
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self.width = targetSize.width;
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self.height = targetSize.height;
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}
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@end
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@implementation DoricHLayoutView
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- (CGSize)sizeContent:(CGSize)size {
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CGFloat contentWidth = 0;
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CGFloat contentHeight = 0;
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NSUInteger contentWeight = 0;
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for (UIView *child in self.subviews) {
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if (child.isHidden) {
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continue;
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}
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DoricLayoutConfig *childConfig = child.layoutConfig;
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if (!childConfig) {
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childConfig = [DoricLayoutConfig new];
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}
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CGSize childSize = CGSizeMake(child.width, child.height);
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if ([child isKindOfClass:[DoricLayoutContainer class]]
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|| childConfig.widthSpec == DoricLayoutWrapContent
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|| childConfig.heightSpec == DoricLayoutWrapContent) {
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childSize = [child sizeThatFits:CGSizeMake(size.width - contentWidth, size.height)];
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}
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if (childConfig.widthSpec == DoricLayoutExact) {
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childSize.width = child.width;
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} else if (childConfig.widthSpec == DoricLayoutAtMost) {
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childSize.width = size.width - contentWidth;
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}
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if (childConfig.heightSpec == DoricLayoutExact) {
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childSize.height = child.height;
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} else if (childConfig.heightSpec == DoricLayoutAtMost) {
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childSize.height = size.height;
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}
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if (childConfig.weight) {
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childSize.width = child.width;
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}
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contentWidth += childSize.width + self.space + childConfig.margin.left + childConfig.margin.right;
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contentHeight = MAX(contentHeight, childSize.height + childConfig.margin.top + childConfig.margin.bottom);
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contentWeight += childConfig.weight;
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}
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contentWidth -= self.space;
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self.contentWidth = contentWidth;
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self.contentHeight = contentHeight;
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self.contentWeight = contentWeight;
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if (contentWeight) {
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contentWidth = size.width;
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}
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return CGSizeMake(contentWidth, contentHeight);
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}
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- (void)layout:(CGSize)targetSize {
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CGFloat xStart = 0;
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if (self.contentWeight) {
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xStart = 0;
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} else if ((self.gravity & LEFT) == LEFT) {
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xStart = 0;
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} else if ((self.gravity & RIGHT) == RIGHT) {
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xStart = targetSize.width - self.contentWidth;
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} else if ((self.gravity & CENTER_X) == CENTER_X) {
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xStart = (targetSize.width - self.contentWidth) / 2;
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}
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CGFloat remain = targetSize.width - self.contentWidth;
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for (UIView *child in self.subviews) {
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if (child.isHidden) {
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continue;
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}
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DoricLayoutConfig *childConfig = child.layoutConfig;
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if (!childConfig) {
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childConfig = [DoricLayoutConfig new];
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}
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CGSize size = [child sizeThatFits:CGSizeMake(targetSize.width - xStart, targetSize.height)];
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if (childConfig.widthSpec == DoricLayoutExact) {
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size.width = child.width;
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}
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if (childConfig.heightSpec == DoricLayoutExact) {
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size.height = child.height;
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}
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if (childConfig.widthSpec == DoricLayoutExact) {
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size.width = child.width;
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} else if (childConfig.widthSpec == DoricLayoutAtMost) {
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size.width = targetSize.width - xStart;
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}
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if (childConfig.heightSpec == DoricLayoutExact) {
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size.height = child.height;
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} else if (childConfig.heightSpec == DoricLayoutAtMost) {
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size.height = targetSize.height;
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}
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if (childConfig.weight) {
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size.width = child.width;
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}
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if (childConfig.weight) {
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size.width += remain / self.contentWeight * childConfig.weight;
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}
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child.width = size.width;
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child.height = size.height;
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DoricGravity gravity = childConfig.alignment | self.gravity;
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if ((gravity & TOP) == TOP) {
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child.top = 0;
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} else if ((gravity & BOTTOM) == BOTTOM) {
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child.bottom = targetSize.height;
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} else if ((gravity & CENTER_Y) == CENTER_Y) {
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child.centerY = targetSize.height / 2;
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} else {
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if (childConfig.margin.top) {
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child.top = childConfig.margin.top;
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} else if (childConfig.margin.bottom) {
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child.bottom = targetSize.height - childConfig.margin.bottom;
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}
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}
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if (childConfig.margin.left) {
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xStart += childConfig.margin.left;
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}
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child.left = xStart;
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xStart = child.right + self.space;
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if (childConfig.margin.right) {
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xStart += childConfig.margin.right;
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}
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if ([child isKindOfClass:[DoricLayoutContainer class]]) {
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[(DoricLayoutContainer *) child layout:size];
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}
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}
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self.width = targetSize.width;
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self.height = targetSize.height;
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}
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@end
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static const void *kLayoutConfig = &kLayoutConfig;
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static const void *kTagString = &kTagString;
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@implementation UIView (DoricLayoutConfig)
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@dynamic layoutConfig;
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- (void)setLayoutConfig:(DoricLayoutConfig *)layoutConfig {
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objc_setAssociatedObject(self, kLayoutConfig, layoutConfig, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
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}
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- (DoricLayoutConfig *)layoutConfig {
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return objc_getAssociatedObject(self, kLayoutConfig);
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}
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- (void)setTagString:(NSString *)tagString {
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objc_setAssociatedObject(self, kTagString, tagString, OBJC_ASSOCIATION_COPY_NONATOMIC);
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self.tag = [tagString hash];
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}
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- (NSString *)tagString {
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return objc_getAssociatedObject(self, kTagString);
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}
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- (UIView *)viewWithTagString:(NSString *)tagString {
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// notice the potential hash collision
|
|
return [self viewWithTag:[tagString hash]];
|
|
}
|
|
|
|
@end
|
|
|
|
DoricVLayoutView *vLayout(NSArray <__kindof UIView *> *views) {
|
|
DoricVLayoutView *layout = [[DoricVLayoutView alloc] initWithFrame:CGRectZero];
|
|
for (__kindof UIView *uiView in views) {
|
|
[layout addSubview:uiView];
|
|
}
|
|
layout.layoutConfig = [[DoricLayoutConfig alloc] initWithWidth:DoricLayoutWrapContent height:DoricLayoutWrapContent];
|
|
return layout;
|
|
}
|
|
|
|
DoricHLayoutView *hLayout(NSArray <__kindof UIView *> *views) {
|
|
DoricHLayoutView *layout = [[DoricHLayoutView alloc] initWithFrame:CGRectZero];
|
|
for (__kindof UIView *uiView in views) {
|
|
[layout addSubview:uiView];
|
|
}
|
|
layout.layoutConfig = [[DoricLayoutConfig alloc] initWithWidth:DoricLayoutWrapContent height:DoricLayoutWrapContent];
|
|
return layout;
|
|
}
|