154 lines
2.6 KiB
C++
Executable File
154 lines
2.6 KiB
C++
Executable File
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#include "lts_frameless_dialog.h"
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#include <QApplication>
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#include <QRect>
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#include <QStyle>
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#include <QSize>
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#include <QScreen>
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#include <QScroller>
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#include <QScrollArea>
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#include <QDesktopWidget>
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#include <QShowEvent>
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#include <QTimer>
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namespace LtsWidgets
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{
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LtsFramelessDialog::LtsFramelessDialog(QWidget *parent, const Behaviour &behaviour)
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: QDialog(parent)
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{
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Qt::WindowFlags wf;
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switch (behaviour)
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{
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case Behaviour::Modal:
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{
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#ifndef TABLET_MODE
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setModal(true);
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wf |= Qt::Dialog;
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#else
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wf |= Qt::Window;
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#endif
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wf |= Qt::WindowStaysOnTopHint;
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break;
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}
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case Behaviour::Popup:
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wf |= Qt::Popup;
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break;
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}
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setWindowFlags(wf);
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QTimer *t = new QTimer(this);
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t->setInterval(250);
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connect(t, &QTimer::timeout,
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this, [this]()
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{
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QSize s = size();
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setGeometry(QStyle::alignedRect(Qt::LeftToRight, Qt::AlignCenter, s, screenRectFromPoint(QCursor::pos())));
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});
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}
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LtsFramelessDialog::~LtsFramelessDialog()
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{
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}
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QRect LtsFramelessDialog::screenRectFromPoint(const QPoint &pos) const
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{
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const auto screens = QGuiApplication::screens();
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for (QScreen *screen : screens)
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{
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QRect s = screen->geometry().adjusted(-50, -50, 50, 50);
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bool contains = s.contains(pos);
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if (contains)
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return screen->geometry();
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}
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return QRect();
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}
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void LtsFramelessDialog::showEvent(QShowEvent *event)
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{
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QDialog::showEvent(event);
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QTimer::singleShot(0, this, &LtsFramelessDialog::onUpdateGeometry);
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#ifdef TABLET_MODE
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QList<QWidget *> scrollWidgets = findChildren<QWidget *>();
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for (auto i = scrollWidgets.begin(); i != scrollWidgets.end(); ++i)
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{
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QWidget *widget = *i;
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QVariant isConst = widget->property("const");
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if (isConst.isValid() && isConst.toBool())
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continue;
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addTouchScroll(widget);
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}
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#endif
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}
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void LtsFramelessDialog::addTouchScroll(QWidget *widget)
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{
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if (!widget)
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return;
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widget->setAttribute(Qt::WA_AcceptTouchEvents);
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QScrollArea *sca = qobject_cast<QScrollArea *>(widget);
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if (sca)
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{
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QScroller::grabGesture(sca->viewport(), QScroller::LeftMouseButtonGesture);
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return;
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}
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}
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void LtsFramelessDialog::onUpdateGeometry()
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{
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QRect r;
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QWidget *p = parentWidget();
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if (p)
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{
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QWidget *window = p->window();
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QPoint global = window->mapToGlobal(QPoint(0,0));
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QSize size = window->size();
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r = QRect(global, size);
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}
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else
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{
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r = QGuiApplication::primaryScreen()->geometry();
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}
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QSize s = size();
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setGeometry(QStyle::alignedRect(Qt::LeftToRight, Qt::AlignCenter, s, r));
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}
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}
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