mirror of https://gitee.com/cxasm/notepad--.git
159 lines
3.8 KiB
C++
Executable File
159 lines
3.8 KiB
C++
Executable File
#include "RcTreeWidget.h"
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#include "MediatorFileTree.h"
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#include <QScrollBar>
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#include <QMenu>
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#include <QProcess>
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RcTreeWidget::RcTreeWidget(QWidget *parent):QTreeWidget(parent), m_userAddMenu(nullptr)
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{
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connect(this->verticalScrollBar(), &QScrollBar::valueChanged, this, &RcTreeWidget::slot_scrollValueChange);
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//收起和伸开子项
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connect(this, &QTreeWidget::itemCollapsed, this, &RcTreeWidget::slot_itemCollapsed);
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connect(this, &QTreeWidget::itemExpanded, this, &RcTreeWidget::slot_itemExpanded);
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setContextMenuPolicy(Qt::CustomContextMenu); //设置枚举值
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connect(this, &QTreeWidget::customContextMenuRequested, this, &RcTreeWidget::slot_ShowPopMenu);
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}
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RcTreeWidget::~RcTreeWidget()
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{
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}
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//给用户进行菜单增加的回调函数
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void RcTreeWidget::setContextUserDefineItemMenuCallBack(std::function<void(int dire,QMenu*, QTreeWidgetItem*)>* userAddMenu)
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{
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m_userAddMenu = userAddMenu;
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}
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//右键菜单
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void RcTreeWidget::slot_ShowPopMenu(const QPoint& pos)
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{
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QTreeWidgetItem* curItem = this->itemAt(pos);
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if (curItem != nullptr)
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{
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QMenu* menu = new QMenu(this);
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if (m_userAddMenu != nullptr)
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{
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(*m_userAddMenu)(m_direction, menu, curItem);
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}
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QAction* action = menu->addAction(tr("Show File in Explorer"), this, [&]() {
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QString path, cmd;
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path = QString("%1/%2").arg(m_rootDir).arg(curItem->data(0, Qt::ToolTipRole).toString());
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#ifdef _WIN32
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path = path.replace("/", "\\");
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cmd = QString("explorer.exe /select,%1").arg(path);
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#else
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path = path.replace("\\", "/");
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cmd = QString("open -R %1").arg(path);
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#endif
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QProcess process;
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process.startDetached(cmd);
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});
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//没有名称表示是对齐的item，不存在对应的文件，只是占位
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if (curItem->text(0).isEmpty())
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{
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action->setEnabled(false);
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}
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if (menu)
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{
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menu->setAttribute(Qt::WA_DeleteOnClose);
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menu->exec(QCursor::pos());
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}
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}
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}
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//点击收起的槽函数
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void RcTreeWidget::slot_itemCollapsed(QTreeWidgetItem *item)
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{
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QString name = item->data(0, Qt::ToolTipRole).toString();
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//左边变化，通知右边去改变
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if (m_direction == RC_LEFT)
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{
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//通知右边去收起
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m_mediator->setRightItemStatus(name,RC_COLLAPSED);
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}
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else
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{
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//通知左边去收起
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m_mediator->setLeftItemStatus(name, RC_COLLAPSED);
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}
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}
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//点击展开的槽函数
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void RcTreeWidget::slot_itemExpanded(QTreeWidgetItem *item)
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{
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QString name = item->data(0, Qt::ToolTipRole).toString();
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//左边变化，通知右边去改变
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if (m_direction == RC_LEFT)
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{
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//右边展开
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m_mediator->setRightItemStatus(name, RC_EXPANDED);
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}
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else
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{
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//左边收起
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m_mediator->setLeftItemStatus(name, RC_EXPANDED);
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}
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}
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void RcTreeWidget::setDirection(RC_DIRECTION direction)
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{
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m_direction = direction;
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}
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void RcTreeWidget::setMediator(MediatorFileTree *mediator)
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{
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m_mediator = mediator;
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}
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//滚动条值变化后的槽函数。一旦滚动则会出发这里，发送消息给中介，让中介去同步另外一方
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void RcTreeWidget::slot_scrollValueChange(int value)
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{
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if (m_direction == RC_LEFT)
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{
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if (m_mediator->getLeftScrollValue() != value)
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{
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m_mediator->setLeftScrollValue(value);
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}
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}
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else
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{
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if (m_mediator->getRightScrollValue() != value)
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{
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m_mediator->setRightScrollValue(value);
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}
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}
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}
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//注意，这里一旦开始调整后，又会引发滚动条值的变化
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void RcTreeWidget::setVerticalValue(int value)
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{
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//不相等才需要设置
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if (verticalScrollBar()->value() != value)
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{
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//超过最大值，只能设置为最大值
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if (value > verticalScrollBar()->maximum())
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{
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verticalScrollBar()->setValue(verticalScrollBar()->maximum());
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}
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else
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{
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verticalScrollBar()->setValue(value);
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}
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}
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}
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