axmol/cocos/ui/UIListView.cpp

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/****************************************************************************
Copyright (c) 2013-2014 Chukong Technologies Inc.
http://www.cocos2d-x.org
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
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#include "ui/UIListView.h"
#include "ui/UIHelper.h"
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NS_CC_BEGIN
namespace ui {
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IMPLEMENT_CLASS_GUI_INFO(ListView)
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ListView::ListView():
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_model(nullptr),
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_gravity(Gravity::CENTER_VERTICAL),
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_itemsMargin(0.0f),
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_curSelectedIndex(0),
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_refreshViewDirty(true),
_listViewEventListener(nullptr),
_listViewEventSelector(nullptr),
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_eventCallback(nullptr)
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{
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this->setTouchEnabled(true);
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}
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ListView::~ListView()
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{
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_listViewEventListener = nullptr;
_listViewEventSelector = nullptr;
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_items.clear();
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CC_SAFE_RELEASE(_model);
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}
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ListView* ListView::create()
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{
ListView* widget = new (std::nothrow) ListView();
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if (widget && widget->init())
{
widget->autorelease();
return widget;
}
CC_SAFE_DELETE(widget);
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return nullptr;
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}
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bool ListView::init()
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{
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if (ScrollView::init())
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{
setLayoutType(Type::VERTICAL);
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return true;
}
return false;
}
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void ListView::setItemModel(Widget *model)
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{
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if (!model)
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{
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return;
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}
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CC_SAFE_RELEASE_NULL(_model);
_model = model;
CC_SAFE_RETAIN(_model);
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}
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void ListView::updateInnerContainerSize()
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{
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switch (_direction)
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{
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case Direction::VERTICAL:
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{
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size_t length = _items.size();
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float totalHeight = (length - 1) * _itemsMargin;
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for (auto& item : _items)
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{
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totalHeight += item->getContentSize().height;
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}
float finalWidth = _contentSize.width;
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float finalHeight = totalHeight;
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setInnerContainerSize(Size(finalWidth, finalHeight));
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break;
}
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case Direction::HORIZONTAL:
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{
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size_t length = _items.size();
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float totalWidth = (length - 1) * _itemsMargin;
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for (auto& item : _items)
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{
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totalWidth += item->getContentSize().width;
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}
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float finalWidth = totalWidth;
float finalHeight = _contentSize.height;
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setInnerContainerSize(Size(finalWidth, finalHeight));
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break;
}
default:
break;
}
}
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void ListView::remedyLayoutParameter(Widget *item)
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{
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if (!item)
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{
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return;
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}
switch (_direction)
{
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case Direction::VERTICAL:
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{
LinearLayoutParameter* llp = (LinearLayoutParameter*)(item->getLayoutParameter());
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if (!llp)
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{
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LinearLayoutParameter* defaultLp = LinearLayoutParameter::create();
switch (_gravity)
{
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case Gravity::LEFT:
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defaultLp->setGravity(LinearLayoutParameter::LinearGravity::LEFT);
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break;
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case Gravity::RIGHT:
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defaultLp->setGravity(LinearLayoutParameter::LinearGravity::RIGHT);
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break;
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case Gravity::CENTER_HORIZONTAL:
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defaultLp->setGravity(LinearLayoutParameter::LinearGravity::CENTER_HORIZONTAL);
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break;
default:
break;
}
if (getIndex(item) == 0)
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{
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defaultLp->setMargin(Margin::ZERO);
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}
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else
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{
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defaultLp->setMargin(Margin(0.0f, _itemsMargin, 0.0f, 0.0f));
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}
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item->setLayoutParameter(defaultLp);
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}
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else
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{
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if (getIndex(item) == 0)
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{
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llp->setMargin(Margin::ZERO);
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}
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else
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{
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llp->setMargin(Margin(0.0f, _itemsMargin, 0.0f, 0.0f));
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}
switch (_gravity)
{
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case Gravity::LEFT:
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llp->setGravity(LinearLayoutParameter::LinearGravity::LEFT);
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break;
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case Gravity::RIGHT:
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llp->setGravity(LinearLayoutParameter::LinearGravity::RIGHT);
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break;
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case Gravity::CENTER_HORIZONTAL:
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llp->setGravity(LinearLayoutParameter::LinearGravity::CENTER_HORIZONTAL);
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break;
default:
break;
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}
}
break;
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}
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case Direction::HORIZONTAL:
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{
LinearLayoutParameter* llp = (LinearLayoutParameter*)(item->getLayoutParameter());
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if (!llp)
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{
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LinearLayoutParameter* defaultLp = LinearLayoutParameter::create();
switch (_gravity)
{
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case Gravity::TOP:
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defaultLp->setGravity(LinearLayoutParameter::LinearGravity::TOP);
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break;
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case Gravity::BOTTOM:
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defaultLp->setGravity(LinearLayoutParameter::LinearGravity::BOTTOM);
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break;
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case Gravity::CENTER_VERTICAL:
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defaultLp->setGravity(LinearLayoutParameter::LinearGravity::CENTER_VERTICAL);
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break;
default:
break;
}
if (getIndex(item) == 0)
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{
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defaultLp->setMargin(Margin::ZERO);
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}
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else
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{
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defaultLp->setMargin(Margin(_itemsMargin, 0.0f, 0.0f, 0.0f));
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}
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item->setLayoutParameter(defaultLp);
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}
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else
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{
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if (getIndex(item) == 0)
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{
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llp->setMargin(Margin::ZERO);
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}
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else
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{
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llp->setMargin(Margin(_itemsMargin, 0.0f, 0.0f, 0.0f));
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}
switch (_gravity)
{
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case Gravity::TOP:
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llp->setGravity(LinearLayoutParameter::LinearGravity::TOP);
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break;
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case Gravity::BOTTOM:
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llp->setGravity(LinearLayoutParameter::LinearGravity::BOTTOM);
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break;
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case Gravity::CENTER_VERTICAL:
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llp->setGravity(LinearLayoutParameter::LinearGravity::CENTER_VERTICAL);
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break;
default:
break;
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}
}
break;
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}
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default:
break;
}
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}
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void ListView::pushBackDefaultItem()
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{
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if (!_model)
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{
return;
}
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Widget* newItem = _model->clone();
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remedyLayoutParameter(newItem);
addChild(newItem);
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_refreshViewDirty = true;
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}
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void ListView::insertDefaultItem(ssize_t index)
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{
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if (!_model)
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{
return;
}
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Widget* newItem = _model->clone();
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_items.insert(index, newItem);
ScrollView::addChild(newItem);
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remedyLayoutParameter(newItem);
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_refreshViewDirty = true;
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}
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void ListView::pushBackCustomItem(Widget* item)
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{
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remedyLayoutParameter(item);
addChild(item);
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_refreshViewDirty = true;
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}
void ListView::addChild(cocos2d::Node *child, int zOrder, int tag)
{
ScrollView::addChild(child, zOrder, tag);
Widget* widget = dynamic_cast<Widget*>(child);
if (widget)
{
_items.pushBack(widget);
}
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}
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void ListView::addChild(cocos2d::Node *child)
{
ListView::addChild(child, child->getLocalZOrder(), child->getName());
}
void ListView::addChild(cocos2d::Node *child, int zOrder)
{
ListView::addChild(child, zOrder, child->getName());
}
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void ListView::addChild(Node* child, int zOrder, const std::string &name)
{
ScrollView::addChild(child, zOrder, name);
Widget* widget = dynamic_cast<Widget*>(child);
if (widget)
{
_items.pushBack(widget);
}
}
void ListView::removeChild(cocos2d::Node *child, bool cleaup)
{
Widget* widget = dynamic_cast<Widget*>(child);
if (widget)
{
_items.eraseObject(widget);
}
ScrollView::removeChild(child, cleaup);
}
void ListView::removeAllChildren()
{
this->removeAllChildrenWithCleanup(true);
}
void ListView::removeAllChildrenWithCleanup(bool cleanup)
{
ScrollView::removeAllChildrenWithCleanup(cleanup);
_items.clear();
}
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void ListView::insertCustomItem(Widget* item, ssize_t index)
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{
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_items.insert(index, item);
ScrollView::addChild(item);
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remedyLayoutParameter(item);
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_refreshViewDirty = true;
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}
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void ListView::removeItem(ssize_t index)
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{
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Widget* item = getItem(index);
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if (!item)
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{
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return;
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}
removeChild(item, true);
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_refreshViewDirty = true;
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}
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void ListView::removeLastItem()
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{
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removeItem(_items.size() -1);
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}
void ListView::removeAllItems()
{
removeAllChildren();
}
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Widget* ListView::getItem(ssize_t index)const
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{
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if (index < 0 || index >= _items.size())
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{
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return nullptr;
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}
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return _items.at(index);
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}
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Vector<Widget*>& ListView::getItems()
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{
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return _items;
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}
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ssize_t ListView::getIndex(Widget *item) const
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{
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if (!item)
{
return -1;
}
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return _items.getIndex(item);
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}
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void ListView::setGravity(Gravity gravity)
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{
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if (_gravity == gravity)
{
return;
}
_gravity = gravity;
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_refreshViewDirty = true;
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}
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void ListView::setItemsMargin(float margin)
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{
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if (_itemsMargin == margin)
{
return;
}
_itemsMargin = margin;
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_refreshViewDirty = true;
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}
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float ListView::getItemsMargin()const
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{
return _itemsMargin;
}
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void ListView::setDirection(Direction dir)
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{
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switch (dir)
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{
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case Direction::VERTICAL:
setLayoutType(Type::VERTICAL);
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break;
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case Direction::HORIZONTAL:
setLayoutType(Type::HORIZONTAL);
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break;
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case Direction::BOTH:
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return;
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default:
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return;
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break;
}
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ScrollView::setDirection(dir);
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}
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void ListView::requestRefreshView()
{
_refreshViewDirty = true;
}
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void ListView::refreshView()
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{
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ssize_t length = _items.size();
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for (int i=0; i<length; i++)
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{
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Widget* item = _items.at(i);
item->setLocalZOrder(i);
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remedyLayoutParameter(item);
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}
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updateInnerContainerSize();
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}
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void ListView::forceDoLayout()
{
if (_refreshViewDirty)
{
refreshView();
_refreshViewDirty = false;
}
this->_innerContainer->forceDoLayout();
}
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void ListView::doLayout()
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{
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Layout::doLayout();
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if (_refreshViewDirty)
{
refreshView();
_refreshViewDirty = false;
}
}
void ListView::addEventListenerListView(Ref *target, SEL_ListViewEvent selector)
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{
_listViewEventListener = target;
_listViewEventSelector = selector;
}
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void ListView::addEventListener(const ccListViewCallback& callback)
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{
_eventCallback = callback;
}
void ListView::selectedItemEvent(TouchEventType event)
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{
this->retain();
switch (event)
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{
case TouchEventType::BEGAN:
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{
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if (_listViewEventListener && _listViewEventSelector)
{
(_listViewEventListener->*_listViewEventSelector)(this, LISTVIEW_ONSELECTEDITEM_START);
}
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if (_eventCallback) {
_eventCallback(this,EventType::ON_SELECTED_ITEM_START);
}
if (_ccEventCallback)
{
_ccEventCallback(this, static_cast<int>(EventType::ON_SELECTED_ITEM_START));
}
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}
break;
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default:
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{
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if (_listViewEventListener && _listViewEventSelector)
{
(_listViewEventListener->*_listViewEventSelector)(this, LISTVIEW_ONSELECTEDITEM_END);
}
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if (_eventCallback) {
_eventCallback(this, EventType::ON_SELECTED_ITEM_END);
}
if (_ccEventCallback)
{
_ccEventCallback(this, static_cast<int>(EventType::ON_SELECTED_ITEM_END));
}
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}
break;
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}
this->release();
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}
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void ListView::interceptTouchEvent(TouchEventType event, Widget *sender, Touch* touch)
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{
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ScrollView::interceptTouchEvent(event, sender, touch);
if (event != TouchEventType::MOVED)
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{
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Widget* parent = sender;
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while (parent)
{
if (parent && parent->getParent() == _innerContainer)
{
_curSelectedIndex = getIndex(parent);
break;
}
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parent = dynamic_cast<Widget*>(parent->getParent());
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}
if (sender->isHighlighted()) {
selectedItemEvent(event);
}
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}
}
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ssize_t ListView::getCurSelectedIndex() const
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{
return _curSelectedIndex;
}
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void ListView::onSizeChanged()
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{
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ScrollView::onSizeChanged();
_refreshViewDirty = true;
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}
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std::string ListView::getDescription() const
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{
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return "ListView";
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}
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Widget* ListView::createCloneInstance()
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{
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return ListView::create();
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}
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void ListView::copyClonedWidgetChildren(Widget* model)
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{
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auto& arrayItems = static_cast<ListView*>(model)->getItems();
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for (auto& item : arrayItems)
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{
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pushBackCustomItem(item->clone());
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}
}
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void ListView::copySpecialProperties(Widget *widget)
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{
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ListView* listViewEx = dynamic_cast<ListView*>(widget);
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if (listViewEx)
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{
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ScrollView::copySpecialProperties(widget);
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setItemModel(listViewEx->_model);
setItemsMargin(listViewEx->_itemsMargin);
setGravity(listViewEx->_gravity);
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_listViewEventListener = listViewEx->_listViewEventListener;
_listViewEventSelector = listViewEx->_listViewEventSelector;
_eventCallback = listViewEx->_eventCallback;
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}
}
}
NS_CC_END