KKGLinearLayout.cpp
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//
// KKGLinearLayout.cpp
// SteveAndMaggieWorld
//
// Created by Katarzyna Kalinowska-Górska on 03/12/2020.
//
#include "KKGLinearLayout.h"
#define CONTAINER_Z_ORDER 10
#define BACKGROUND_Z_ORDER 0
KKGLinearLayout* KKGLinearLayout::create(LayoutType type, Alignment alignment, Gravity gravity){
KKGLinearLayout *ret = new (std::nothrow) KKGLinearLayout();
if (ret->init(type, alignment, gravity))
{
ret->autorelease();
return ret;
}
CC_SAFE_DELETE(ret);
return nullptr;
}
bool KKGLinearLayout::init(LayoutType type, Alignment alignment, Gravity gravity){
if(!cocos2d::Node::init()){
// if(!cocos2d::LayerColor::initWithColor(cocos2d::Color4B(220, 0, 00, 250))){
return false;
}
m_type = type;
m_alignment = alignment;
m_gravity = gravity;
prepareInternalContainer();
return true;
}
void KKGLinearLayout::setCascadeOpacityEnabled(bool cascadeOpacityEnabled){
cocos2d::Node::setCascadeOpacityEnabled(cascadeOpacityEnabled);
m_internalContainer->setCascadeOpacityEnabled(cascadeOpacityEnabled);
}
void KKGLinearLayout::setInterViewMargin(float margin, bool immediatelyRelayout){
m_interChildMargin = margin;
if(immediatelyRelayout){
layoutViews();
}
}
float KKGLinearLayout::getInterViewMargin(){
return m_interChildMargin;
}
void KKGLinearLayout::addViews(std::vector<cocos2d::Node*> views, bool immediatelyRelayout){
auto currIndex = (int)m_internalContainer->getChildrenCount();
for(auto it = views.begin(); it != views.end(); ++it){
(*it)->setTag(currIndex++);
m_internalContainer->addChild(*it);
}
if(immediatelyRelayout){
layoutViews();
}
}
void KKGLinearLayout::setLayoutContentSize(const cocos2d::Size & size, bool immediatelyRelayout){
cocos2d::Node::setContentSize(size);
if(immediatelyRelayout){
layoutViews();
}
}
const cocos2d::Size& KKGLinearLayout::getLayoutContentSize() const {
return cocos2d::Node::getContentSize();
}
void KKGLinearLayout::addView(cocos2d::Node * view, bool immediatelyRelayout){
view->setTag((int)m_internalContainer->getChildrenCount());
m_internalContainer->addChild(view);
if(immediatelyRelayout){
layoutViews();
}
}
void KKGLinearLayout::setBackgroundColor(const cocos2d::Color4B& bgColor){
if(m_backgroundNode != nullptr){
m_backgroundNode->removeFromParent();
}
m_backgroundNode = cocos2d::LayerColor::create(bgColor);
addChild(m_backgroundNode);
m_backgroundNode->setPosition(cocos2d::Vec2::ZERO);
adjustBackground(getContentSize());
m_backgroundNode->setLocalZOrder(BACKGROUND_Z_ORDER);
}
void KKGLinearLayout::substituteViewAtIndex(int index, cocos2d::Node * newView){
CCASSERT(index >= 0 && index < m_internalContainer->getChildrenCount(), "KKGLinearLayout::substituteViewAtIndex: invalid index");
auto oldView = m_internalContainer->getChildByTag(index);
newView->setPosition(oldView->getPosition());
newView->setAnchorPoint(oldView->getAnchorPoint());
newView->setContentSize(oldView->getContentSize());
newView->setTag(index);
oldView->removeFromParent();
m_internalContainer->addChild(newView);
}
void KKGLinearLayout::layoutViews(){
if(m_internalContainer == nullptr){ //this also means there are no children to layout
return;
}
if(m_type == HORIZONTAL){
auto childrenTotalWidth = 0;
auto childrenMaxHeight = 0;
auto allChildren = m_internalContainer->getChildren();
for(int i = 0; i < allChildren.size(); ++i){
// for(auto it = allChildren.begin(); it != allChildren.end(); ++it){
// auto child = *it;
auto child = m_internalContainer->getChildByTag(i);
if(child != nullptr){
childrenMaxHeight = MAX(child->getBoundingBox().size.height, childrenMaxHeight);
childrenTotalWidth += child->getBoundingBox().size.width;
childrenTotalWidth += m_interChildMargin;
}
}
childrenTotalWidth -= m_interChildMargin;
m_internalContainer->setContentSize(cocos2d::Size(childrenTotalWidth, childrenMaxHeight));
cocos2d::Point internalContainerPosition { cocos2d::Point::ZERO };
float childAnchorPointY = 0;
float childPositionY = 0;
switch(m_alignment){
case ASTART:
m_internalContainerAnchorPoint.x = 0;// = (cocos2d::Vec2(0, 0.5));
internalContainerPosition.x = 0;// = cocos2d::Vec2(0, getContentSize().height/2);
break;
case AEND:
m_internalContainerAnchorPoint.x = 1;
internalContainerPosition.x = getContentSize().width;
// m_internalContainer->setAnchorPoint(cocos2d::Vec2(1, 0.5));
// m_internalContainer->setPosition(getContentSize().width, getContentSize().height/2);
break;
case ACENTER:
m_internalContainerAnchorPoint.x = 0.5;
internalContainerPosition.x = getContentSize().width/2;
// m_internalContainer->setAnchorPoint(cocos2d::Vec2(0.5, 0.5));
// m_internalContainer->setPosition(getContentSize()/2);
break;
}
switch(m_gravity){
case GSTART:
m_internalContainerAnchorPoint.y = 1;
internalContainerPosition.y = getContentSize().height;
childAnchorPointY = 0;
childPositionY = 0;
break;
case GEND:
m_internalContainerAnchorPoint.y = 0;
internalContainerPosition.y = 0;
childAnchorPointY = 1;
childPositionY = childrenMaxHeight;
break;
case GCENTER:
m_internalContainerAnchorPoint.y = 0.5;
internalContainerPosition.y = getContentSize().height/2;
childAnchorPointY = 0.5;
childPositionY = childrenMaxHeight / 2;
break;
}
m_internalContainer->setAnchorPoint(m_internalContainerAnchorPoint);
m_internalContainer->setPosition(internalContainerPosition);
float currentPoint = 0;
for(int i = 0; i < allChildren.size(); ++i){
// for(auto it = allChildren.begin(); it != allChildren.end(); ++it){
// auto child = *it;
auto child = m_internalContainer->getChildByTag(i);
if(child != nullptr){
child->setAnchorPoint(cocos2d::Vec2(0, childAnchorPointY));
child->setPosition(cocos2d::Vec2(currentPoint, childPositionY));
currentPoint += child->getBoundingBox().size.width + m_interChildMargin;
}
}
} else if(m_type == VERTICAL){
auto childrenTotalHeight = 0;
auto childrenMaxWidth = 0;
auto allChildren = m_internalContainer->getChildren();
for(int i = 0; i < allChildren.size(); ++i){
// for(auto it = allChildren.begin(); it != allChildren.end(); ++it){
// auto child = *it;
auto child = m_internalContainer->getChildByTag(i);
if(child != nullptr){
childrenMaxWidth = MAX(child->getBoundingBox().size.width, childrenMaxWidth);
childrenTotalHeight += child->getBoundingBox().size.height;
childrenTotalHeight += m_interChildMargin;
}
}
childrenTotalHeight -= m_interChildMargin;
m_internalContainer->setContentSize(cocos2d::Size(childrenMaxWidth, childrenTotalHeight));
cocos2d::Point internalContainerPosition { cocos2d::Point::ZERO };
float childAnchorPointX = 0;
float childPositionX = 0;
switch(m_alignment){
case ASTART:
m_internalContainerAnchorPoint.y = 1;
internalContainerPosition.y = getContentSize().height;
break;
case AEND:
m_internalContainerAnchorPoint.y = 0;
internalContainerPosition.y = 0;
// m_internalContainer->setAnchorPoint(cocos2d::Vec2(1, 0.5));
// m_internalContainer->setPosition(getContentSize().width, getContentSize().height/2);
break;
case ACENTER:
m_internalContainerAnchorPoint.y = 0.5;
internalContainerPosition.y = getContentSize().height/2;
// m_internalContainer->setAnchorPoint(cocos2d::Vec2(0.5, 0.5));
// m_internalContainer->setPosition(getContentSize()/2);
break;
}
switch(m_gravity){
case GSTART:
m_internalContainerAnchorPoint.x = 0;
internalContainerPosition.x = 0;
childAnchorPointX = 0;
childPositionX = 0;
break;
case GEND:
m_internalContainerAnchorPoint.x = 1;
internalContainerPosition.x = getContentSize().width;
childAnchorPointX = 1;
childPositionX = childrenMaxWidth;
break;
case GCENTER:
m_internalContainerAnchorPoint.x = 0.5;
internalContainerPosition.x = getContentSize().width/2;
childAnchorPointX = 0.5;
childPositionX = childrenMaxWidth/2;
break;
}
m_internalContainer->setAnchorPoint(m_internalContainerAnchorPoint);
m_internalContainer->setPosition(internalContainerPosition);
float currentPoint = childrenTotalHeight;
for(int i = 0; i < allChildren.size(); ++i){
// for(auto it = allChildren.begin(); it != allChildren.end(); ++it){
// auto child = *it;
auto child = m_internalContainer->getChildByTag(i);
if(child != nullptr){
if(child->getRotation() == 0){ //TODO: handle rotated children
child->setAnchorPoint(cocos2d::Vec2(childAnchorPointX, 1));
} else if(child->getRotation() == 90) {
child->setAnchorPoint(cocos2d::Vec2(0, childAnchorPointX));
}
child->setPosition(cocos2d::Vec2(childPositionX, currentPoint));
currentPoint -= child->getBoundingBox().size.height + m_interChildMargin;
}
}
// switch(m_gravity){
// case START:
// m_internalContainer->setAnchorPoint(cocos2d::Vec2(0.5, 1));
// m_internalContainer->setPosition(getContentSize().width/2, getContentSize().height);
// break;
// case END:
// m_internalContainer->setAnchorPoint(cocos2d::Vec2(0.5, 0));
// m_internalContainer->setPosition(getContentSize().width/2, 0);
// break;
// case CENTER:
// m_internalContainer->setAnchorPoint(cocos2d::Vec2(0.5, 0.5));
// m_internalContainer->setPosition(getContentSize()/2);
// break;
// }
}
adjustBackground(getContentSize());
}
cocos2d::Vector<cocos2d::Node*> KKGLinearLayout::getViews(){
return m_internalContainer->getChildren();
}
cocos2d::Node* KKGLinearLayout::getView(int index){
return m_internalContainer->getChildByTag(index);
}
bool KKGLinearLayout::hasViews(){
return m_internalContainer != nullptr && m_internalContainer->getChildrenCount() > 0;
}
void KKGLinearLayout::removeAllViews(bool relayout){
m_internalContainer->removeAllChildren();
if(relayout){
layoutViews();
}
}
void KKGLinearLayout::removeLastView(bool relayout){
auto childrenCount = m_internalContainer->getChildrenCount();
assert(0 < childrenCount);
auto child = m_internalContainer->getChildByTag(childrenCount - 1);
if(child != nullptr){
child->removeFromParent();
if(relayout){
layoutViews();
}
}
}
//void KKGLinearLayout::removeViewAtIndex(int index, bool relayout){
// assert(index < m_internalContainer->getChildrenCount());
// auto view = m_internalContainer->getChildByTag(index);
// view->removeFromParent();
// if(relayout){
// layoutViews();
// }
//
// //TODO: retag children
//}
void KKGLinearLayout::wrapContents(){
layoutViews();
if(m_internalContainer == nullptr){
return;
}
auto newContentSize = m_internalContainer->getContentSize();
setContentSize(newContentSize);
m_internalContainer->setPosition(newContentSize.width * m_internalContainerAnchorPoint.x, newContentSize.height*m_internalContainerAnchorPoint.y); //TODO separate method adjust inner container position
adjustBackground(newContentSize);
}
void KKGLinearLayout::prepareInternalContainer(){
// if(m_internalContainer == nullptr){
m_internalContainer = cocos2d::Node::create();//cocos2d::LayerColor::create(cocos2d::Color4B(100, 200, 100, 250));
m_internalContainer->setIgnoreAnchorPointForPosition(false);
addChild(m_internalContainer);
m_internalContainer->setLocalZOrder(CONTAINER_Z_ORDER);
// }
}
void KKGLinearLayout::adjustBackground(const cocos2d::Size& contentSize){
if(m_backgroundNode != nullptr){
m_backgroundNode->setContentSize(contentSize);
// m_backgroundNode->setPosition(contentSize/2);
}
}