#include "DialogGotoSelection.h"
#include "Pou.h"

DialogGotoSelection::DialogGotoSelection(const POU* pou, QWidget *parent)
	: QDialog(parent)
	, m_pou(pou)
{
	ui.setupUi(this);

	// 对话框初始化
	this->initUI();
}

DialogGotoSelection::~DialogGotoSelection()
{
}


/// <summary>
/// 对话框初始化
/// </summary>
void DialogGotoSelection::initUI()
{
	// 设置对话框标题
	this->setWindowTitle(("Goto Tools Selection"));

	this->setAttribute(Qt::WA_QuitOnClose);
	this->setWindowModality(Qt::ApplicationModal);

	// 添加分组信息（目前就固定一个分组）
	ui.comboValueGroup->addItem(m_pou->pouName());

	ui.comboValueGroup->setCurrentIndex(0);
	this->onComboGroupChanged(0);

	// Tree
	// 1列
	ui.treeTool->setColumnCount(1);
	// 隐藏表头
	ui.treeTool->setHeaderHidden(true);
	// 显示虚线
	ui.treeTool->setStyle(QStyleFactory::create("windows"));

	// 槽函数
	connect(ui.selectButton, SIGNAL(clicked()), this, SLOT(onButtonSelectClicked()));
	connect(ui.cancelButton, SIGNAL(clicked()), this, SLOT(reject()));
	connect(ui.comboValueGroup, SIGNAL(currentIndexChanged(int)), this, SLOT(onComboGroupChanged(int)));

	// 设置固定窗体大小
	this->setFixedSize(485, 490);
}


/// <summary>
/// 添加兼容的Pou工具到树形结构中
/// </summary>
/// <param name="pPou"></param>
void DialogGotoSelection::AddPouToolsToTree(const POU* pPou)
{
	// 添加根节点
	QTreeWidgetItem* pRootItem = AddRootTreeItem("Tools");

	// 添加适配的工具
	const QVector<TOOL*>& allTools = pPou->GetAllStandardTools();
	QVectorIterator<TOOL*> i(allTools);
	while (i.hasNext())
	{
		const TOOL* pTool = i.next();

		// 此处只要最标准的Tool
		if (pTool->isStandardTool())
		{
			// 添加工具到列表中
			this->AddToolTreeItem(pRootItem, pTool);
		}
	}

	// 将树形结构展开
	ui.treeTool->expandAll();
}


/// <summary>
/// // 添加根节点
/// </summary>
/// <param name="toolName"></param>
/// <returns></returns>
QTreeWidgetItem* DialogGotoSelection::AddRootTreeItem(const QString& toolName)
{
	QTreeWidgetItem* newItem = new QTreeWidgetItem(QStringList(toolName));
	newItem->setIcon(0, QIcon(":/image/tool_tree_item.png"));
	// 使父节点不可选中
	newItem->setFlags(Qt::ItemIsEnabled);

	ui.treeTool->addTopLevelItem(newItem);

	return newItem;
}


/// <summary>
/// 添加Tool子节点
/// </summary>
/// <param name="pToolItem"></param>
/// <param name="pTool"></param>
void DialogGotoSelection::AddToolTreeItem(QTreeWidgetItem* pRootItem, const TOOL* pTool)
{
	QTreeWidgetItem* newItem = new QTreeWidgetItem(pRootItem, QStringList(pTool->strInstanceName));

	newItem->setIcon(0, QIcon(":/image/Input.png"));

	pRootItem->addChild(newItem);
}


/// <summary>
/// select按钮
/// </summary>
void DialogGotoSelection::onButtonSelectClicked()
{
	// 获取用户选择的节点
	QList<QTreeWidgetItem*> selItems = ui.treeTool->selectedItems();

	if (selItems.size() <= 0)
	{
		// 如果选择的节点无效，则不允许关闭
		Utility::VPCriticalMessageBox(" The tool selected is invalid!");

		return;
	}

	// 获取用户选择的Tool
	m_selToolInstName = selItems[0]->text(0);

	this->accept();
}


/// <summary>
/// Combo框选择变更时，需要切换对应的工具列表（当前仅一个分组）
/// </summary>
/// <param name="nIndex"></param>
void DialogGotoSelection::onComboGroupChanged(int nIndex)
{
	Q_UNUSED(nIndex);

	// 先将当前的树形控件清空
	ui.treeTool->clear();

	// 重新添加节点和数据结构
	AddPouToolsToTree(m_pou);
}