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#include "FITKMdiArea.h"
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#include "FITKMdiSubWindow.h"
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#include <QResizeEvent>
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#include <QMutexLocker>
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#include <QTabBar>
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#include <cmath>
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namespace Comp
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{
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//互斥锁初始化
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QMutex FITKMdiArea::_mutex;
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FITKMdiArea::FITKMdiArea(QWidget * parent) :
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QMdiArea(parent)
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{
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//设置在tab模式下bar中包含关闭按钮
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this->setTabsClosable(true);
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//设置tab页bar为矩形
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this->setTabShape(QTabWidget::TabShape::Rounded);
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}
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FITKMdiArea::~FITKMdiArea()
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{
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_widgetHash.clear();
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}
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int FITKMdiArea::addSubWidget(QWidget* widgwt, QString title)
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{
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//互斥锁添加
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QMutexLocker locker(&_mutex);
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FITKMdiSubWindow* subWin = new FITKMdiSubWindow;
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subWin->setWidget(widgwt);
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subWin->setParent(this);
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this->addSubWindow(subWin);
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_objectID++;
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//初始化界面的布局方式
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setLayoutType(_layoutType);
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_widgetHash.insert(_objectID, subWin);
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//QMdiArea中添加widget后需要调用一下show，不然可能无法显示
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subWin->setWindowTitle(title);
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subWin->show();
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//返回ID
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return _objectID;
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}
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void FITKMdiArea::setLayoutType(FITKVportsLayoutType type)
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{
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_layoutType = type;
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switch (_layoutType){
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//当前视口最大化
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case Comp::FITKVportsLayoutType::CurrentMax:this->setViewMode(QMdiArea::ViewMode::SubWindowView); break;
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//层叠
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case Comp::FITKVportsLayoutType::Cascade:this->setViewMode(QMdiArea::ViewMode::SubWindowView); break;
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//水平平铺
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case Comp::FITKVportsLayoutType::TileHorizontally:this->setViewMode(QMdiArea::ViewMode::SubWindowView); break;
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//垂直平铺
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case Comp::FITKVportsLayoutType::TileVertically:this->setViewMode(QMdiArea::ViewMode::SubWindowView); break;
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//Tab页
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case Comp::FITKVportsLayoutType::Tab: this->setViewMode(QMdiArea::ViewMode::TabbedView); break;
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}
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//更新布局
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updateLayout();
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}
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void FITKMdiArea::setTabPos(FITKVportsTabPos pos)
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{
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//设置tab下toolbar的位置
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if (_layoutType != Comp::FITKVportsLayoutType::Tab)return;
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_tabPos = pos;
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switch (_tabPos) {
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//顶部
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case Comp::FITKVportsTabPos::Top:this->setTabPosition(QTabWidget::TabPosition::North); break;
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//底部
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case Comp::FITKVportsTabPos::Bottom:this->setTabPosition(QTabWidget::TabPosition::South); break;
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//左侧
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case Comp::FITKVportsTabPos::Left:this->setTabPosition(QTabWidget::TabPosition::West); break;
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//右侧
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case Comp::FITKVportsTabPos::Right:this->setTabPosition(QTabWidget::TabPosition::East); break;
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}
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}
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QMdiSubWindow * FITKMdiArea::getSubWidget(int objectID)
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{
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return _widgetHash.value(objectID);
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}
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QWidget* FITKMdiArea::getWidget(int id)
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{
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QMdiSubWindow* subWidget = _widgetHash.value(id);
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if (subWidget == nullptr)return nullptr;
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return subWidget->widget();
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}
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void FITKMdiArea::removeWidget(int id)
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{
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//互斥锁
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QMutexLocker locker(&_mutex);
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QMdiSubWindow* widget = _widgetHash.value(id);
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if (widget == nullptr)return;
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this->removeSubWindow(widget);
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_widgetHash.remove(id);
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//更新布局
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updateLayout();
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}
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QWidget* FITKMdiArea::getWidget(QMdiSubWindow* subWidget)
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{
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if (subWidget == nullptr)return nullptr;
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QList<QMdiSubWindow*> subWidgets = _widgetHash.values();
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if(!subWidgets.contains(subWidget))return nullptr;
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return subWidget->widget();
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}
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QMdiSubWindow * FITKMdiArea::getSubWidget(QWidget* widget)
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{
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if (widget == nullptr)return nullptr;
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QList<QMdiSubWindow*> subWidgets = _widgetHash.values();
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for (QMdiSubWindow* subWidget : subWidgets) {
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if (subWidget == nullptr)continue;
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if (subWidget->widget() == widget)return subWidget;
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}
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return nullptr;
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}
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QWidget* FITKMdiArea::getCurrentWidget()
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{
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FITKMdiSubWindow* subMainwin = dynamic_cast<FITKMdiSubWindow*>(this->currentSubWindow());
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if (subMainwin == nullptr)return nullptr;
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return subMainwin->widget();
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}
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QMdiSubWindow * FITKMdiArea::getCurrentSubWidget()
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{
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return this->currentSubWindow();
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}
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void FITKMdiArea::removeCurrentWidget()
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{
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QMutexLocker locker(&_mutex);
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QMdiSubWindow* subMainwin = this->currentSubWindow();
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if (subMainwin == nullptr)return;
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int id = _widgetHash.key(subMainwin);
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removeWidget(id);
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}
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void FITKMdiArea::updateLayout()
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{
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switch (_layoutType){
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//当前视图最大化
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case Comp::FITKVportsLayoutType::CurrentMax:currentMaxViewports(); break;
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//叠层布局
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case Comp::FITKVportsLayoutType::Cascade:cascadeViewports(); break;
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//水平平铺
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case Comp::FITKVportsLayoutType::TileHorizontally:tileHorizontallyViewports(); break;
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//垂直平铺
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case Comp::FITKVportsLayoutType::TileVertically:tileVerticallyViewports(); break;
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}
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}
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void FITKMdiArea::setTabBarExpanding(bool ex /*= true */)
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{
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if (_layoutType != FITKVportsLayoutType::Tab) return;
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QTabBar* bar = this->findChild<QTabBar*>();
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if (bar) bar->setExpanding(ex);
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}
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void FITKMdiArea::resizeEvent(QResizeEvent * event)
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{
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QMdiArea::resizeEvent(event);
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//大小发生变化时重新计算窗口位置
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updateLayout();
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}
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bool FITKMdiArea::eventFilter(QObject * object, QEvent * event)
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{
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QMdiArea::eventFilter(object, event);
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QList<QMdiSubWindow*> subWidgets = _widgetHash.values();
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for (QMdiSubWindow* subWidget : subWidgets) {
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if (object == subWidget) {
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if (event->type() == QEvent::Close) {
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slotWidgetClose(subWidget);
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}
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}
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}
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return false;
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}
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void FITKMdiArea::slotWidgetClose(QMdiSubWindow* subWidget)
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{
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if (subWidget == nullptr)return;
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QList<QMdiSubWindow*> subWidgets = _widgetHash.values();
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if (!subWidgets.contains(subWidget))return;
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_widgetHash.remove(_widgetHash.key(subWidget));
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this->removeSubWindow(subWidget);
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}
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void FITKMdiArea::currentMaxViewports()
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{
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//最大化当前窗口
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QMdiSubWindow* currentSubWin = this->currentSubWindow();
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if (currentSubWin == nullptr)return;
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currentSubWin->showMaximized();
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}
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void FITKMdiArea::cascadeViewports()
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{
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QPoint position(0, 0);
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// 分别设置每个视口大小为总尺寸的75%
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auto viewportWidth = width() * 0.75;
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auto viewportHeight = height() * 0.75;
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QList<QMdiSubWindow*> widgetList = this->subWindowList(QMdiArea::CreationOrder);
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for (QMdiSubWindow* widget : widgetList)
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{
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// 宽度超出最大值，则从左上角从新开始排列
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if (position.x() + viewportWidth > width()) {
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position.setX(0);
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position.setY(0);
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}
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// 高度超出最大值，则从新开始一列
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if (position.y() + viewportHeight > height()) {
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position.setY(0);
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}
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// 分别设置每个视口的位置、大小
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widget->setWindowState(Qt::WindowState::WindowNoState);
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QRect rect(0, 0, viewportWidth, viewportHeight);
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widget->setGeometry(rect);
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widget->move(position);
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position.setX(position.x() + 30);
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position.setY(position.y() + 30);
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}
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}
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void FITKMdiArea::tileHorizontallyViewports()
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{
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//已创建的顺序获取列表
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QList<QMdiSubWindow*> widgetList = this->subWindowList(QMdiArea::CreationOrder);
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// 最大可用长度和宽度
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int availableWidth = width();
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int availableHeight = height();
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// 计算行数和列数
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int count = widgetList.size();
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int column = floor(sqrt((double)count));
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if (column == 0) return;
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int row = ceil((double)count / (double)column);
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if (row == 0) return;
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// 计算每个视口的显示宽度和高度
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int viewportWidth = availableWidth / column;
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int viewportHeight = availableHeight / row;
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// 当前行索引与列索引
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int rowIndex = 0, columnIndex = 0;
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// 分别计算每个视口的长度，分别设置显示位置和大小
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QPoint position(0, 0);
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int i = 0;
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for (auto widget : widgetList)
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{
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if (widget == nullptr) continue;
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// 计算索引为i的视口的行索引和列索引
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rowIndex = floor(i / column);
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columnIndex = i % column;
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// 设置视口的显示状态
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widget->setWindowState(Qt::WindowState::WindowNoState);
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// 设置视口大小
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QRect rect(0, 0, viewportWidth, viewportHeight);
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widget->setGeometry(rect);
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// 计算视口的位置
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position.setX(columnIndex * viewportWidth);
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position.setY(rowIndex * viewportHeight);
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// 移动到指定位置
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widget->move(position);
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i++;
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}
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}
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void FITKMdiArea::tileVerticallyViewports()
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{
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QList<QMdiSubWindow*> widgetList = this->subWindowList(QMdiArea::CreationOrder);
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// 最大可用长度和宽度
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int availableWidth = width();
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int availableHeight = height();
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// 计算行数和列数
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auto count = widgetList.size();
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int row = floor(sqrt((double)count));
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if (row == 0) return;
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int column = ceil((double)count / (double)row);
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if (column == 0) return;
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// 计算每个视口的显示宽度和高度
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int viewportWidth = availableWidth / column;
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int viewportHeight = availableHeight / row;
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// 当前行索引与列索引
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int rowIndex = 0, columnIndex = 0;
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// 分别计算每个视口的长度，分别设置显示位置和大小
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QPoint position(0, 0);
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int i = 0;
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for (QMdiSubWindow* widget : widgetList)
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{
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if (widget == nullptr) continue;
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// 计算索引为i的视口的行索引和列索引
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rowIndex = floor(i / column);
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columnIndex = i % column;
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// 设置视口的显示状态
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widget->setWindowState(Qt::WindowState::WindowNoState);
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// 设置视口大小
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QRect rect(0, 0, viewportWidth, viewportHeight);
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widget->setGeometry(rect);
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// 计算视口的位置
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position.setX(columnIndex * viewportWidth);
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position.setY(rowIndex * viewportHeight);
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// 移动到指定位置
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widget->move(position);
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i++;
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}
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}
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}
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