161 lines
3.6 KiB
C++
Executable File
161 lines
3.6 KiB
C++
Executable File
/**
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* @RDE_HEADER@
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* FrameLess Dialog with alternatie basecolor
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* $Id$
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* $HeadURL$
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* $Author$
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*
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* Created by Mike Wille, SLSE, 2016-03-09
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*/
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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-Bug? Qt::FramelessWindowHint in the underlying windows results in
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// mapToGlobal(QPoint(0,0)) == QPoint(0,0) when a popup window is show on top of it
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Qt::WindowFlags wf; // TODO: FIX WM AFTER FAT!! = Qt::FramelessWindowHint; // make frameless, composite manager drops the shadow
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// frameless dialogs cannot have (completety working) children dialogs => frames 4 fat
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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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//qWarning() << "my pos" << QCursor::pos();
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//qWarning() << "my screen rect" << screenRectFromPoint(QCursor::pos());
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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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//t->start(); TODO: impl this!
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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); // graceful offset for desktop managers
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bool contains = s.contains(pos);
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//qWarning() << "screen" << s << " widget" << w << " contains?" << contains;
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//qWarning() << "screen: x" << s.x() << "y" << s.y() << "h" << s.height() << "w" << s.width();
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//qWarning() << "widget: x" << w.x() << "y" << w.y() << "h" << w.height() << "w" << w.width();
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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) // get the parent's window and center the dialog on the center of the parent's window
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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 // no parent - no alignment!
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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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} // namespace LtsWidgets
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