Continues migration with DDS, Common

Lts/Common/LtsWidgets/lts_frameless_dialog.cpp

@@ -0,0 +1,153 @@
+
+
+
+#include "lts_frameless_dialog.h"
+
+#include <QApplication>
+#include <QRect>
+#include <QStyle>
+#include <QSize>
+#include <QScreen>
+#include <QScroller>
+#include <QScrollArea>
+#include <QDesktopWidget>
+#include <QShowEvent>
+#include <QTimer>
+
+
+namespace LtsWidgets
+{
+LtsFramelessDialog::LtsFramelessDialog(QWidget *parent, const Behaviour &behaviour)
+  : QDialog(parent)
+{
+  
+  
+  Qt::WindowFlags wf; 
+  
+
+  switch (behaviour)
+  {
+    case Behaviour::Modal:
+    {
+
+#ifndef TABLET_MODE
+      setModal(true);
+      wf |= Qt::Dialog;
+#else
+      wf |= Qt::Window;
+#endif
+      wf |= Qt::WindowStaysOnTopHint;
+      break;
+    }
+
+    case Behaviour::Popup:
+      wf |= Qt::Popup;
+      break;
+  }
+
+  setWindowFlags(wf);
+
+
+  QTimer *t = new QTimer(this);
+  t->setInterval(250);
+  connect(t, &QTimer::timeout,
+          this, [this]()
+  {
+    
+    
+
+    QSize s = size();
+    setGeometry(QStyle::alignedRect(Qt::LeftToRight, Qt::AlignCenter, s, screenRectFromPoint(QCursor::pos())));
+  });
+  
+}
+
+
+LtsFramelessDialog::~LtsFramelessDialog()
+{
+
+}
+
+
+QRect LtsFramelessDialog::screenRectFromPoint(const QPoint &pos) const
+{
+  const auto screens = QGuiApplication::screens();
+  for (QScreen *screen : screens)
+  {
+    QRect s = screen->geometry().adjusted(-50, -50, 50, 50); 
+
+    bool contains = s.contains(pos);
+
+    
+    
+    
+
+    if (contains)
+      return screen->geometry();
+  }
+
+  return QRect();
+}
+
+
+void LtsFramelessDialog::showEvent(QShowEvent *event)
+{
+  QDialog::showEvent(event);
+  QTimer::singleShot(0, this, &LtsFramelessDialog::onUpdateGeometry);
+
+
+#ifdef TABLET_MODE
+  QList<QWidget *> scrollWidgets = findChildren<QWidget *>();
+
+  for (auto i = scrollWidgets.begin(); i != scrollWidgets.end(); ++i)
+  {
+    QWidget *widget = *i;
+
+    QVariant isConst = widget->property("const");
+    if (isConst.isValid() && isConst.toBool())
+      continue;
+
+    addTouchScroll(widget);
+  }
+#endif
+}
+
+
+void LtsFramelessDialog::addTouchScroll(QWidget *widget)
+{
+  if (!widget)
+    return;
+  widget->setAttribute(Qt::WA_AcceptTouchEvents);
+
+  QScrollArea *sca = qobject_cast<QScrollArea *>(widget);
+  if (sca)
+  {
+    QScroller::grabGesture(sca->viewport(), QScroller::LeftMouseButtonGesture);
+    return;
+  }
+}
+
+
+void LtsFramelessDialog::onUpdateGeometry()
+{
+  QRect r;
+  QWidget *p = parentWidget();
+
+  if (p) 
+  {
+    QWidget *window = p->window();
+    QPoint global = window->mapToGlobal(QPoint(0,0));
+    QSize size = window->size();
+
+    r = QRect(global, size);
+  }
+  else 
+  {
+    r = QGuiApplication::primaryScreen()->geometry();
+  }
+
+  QSize s = size();
+  setGeometry(QStyle::alignedRect(Qt::LeftToRight, Qt::AlignCenter, s, r));
+}
+
+}