HiDPI commit

src/widgets/basewidget.cpp

@@ -1,15 +1,21 @@
 #include "widgets/basewidget.hpp"
 #include "colorscheme.hpp"
 
+//#include <QApplication>
 #include <QDebug>
+//#include <QDesktopWidget>
+//#include <QScreen>
 #include <boost/signals2.hpp>
+#include "util/nativeeventhelper.hpp"
 
 namespace chatterino {
 namespace widgets {
 
+// BaseWidget::BaseWidget(ColorScheme &_colorScheme, WindowManager &_windowManager, QWidget *parent)
 BaseWidget::BaseWidget(ColorScheme &_colorScheme, QWidget *parent)
     : QWidget(parent)
     , colorScheme(_colorScheme)
+//    , windowManager(_windowManager)
 {
     this->init();
 }
@@ -17,10 +23,25 @@ BaseWidget::BaseWidget(ColorScheme &_colorScheme, QWidget *parent)
 BaseWidget::BaseWidget(BaseWidget *parent)
     : QWidget(parent)
     , colorScheme(parent->colorScheme)
+//    , windowManager(parent->windowManager)
 {
     this->init();
 }
 
+float BaseWidget::getDpiMultiplier()
+{
+    BaseWidget *baseWidget = dynamic_cast<BaseWidget *>(this->window());
+
+    if (baseWidget == nullptr) {
+        return 1.f;
+    } else {
+        return baseWidget->dpiMultiplier;
+        //    int screenNr = QApplication::desktop()->screenNumber(this);
+        //    QScreen *screen = QApplication::screens().at(screenNr);
+        //    return screen->logicalDotsPerInch() / 96.f;
+    }
+}
+
 void BaseWidget::init()
 {
     this->colorScheme.updated.connect([this]() {
@@ -35,5 +56,28 @@ void BaseWidget::refreshTheme()
     // Do any color scheme updates here
 }
 
+#ifdef USEWINSDK
+bool BaseWidget::nativeEvent(const QByteArray &eventType, void *message, long *result)
+{
+    int dpi;
+
+    if (util::tryHandleDpiChangedMessage(message, dpi)) {
+        qDebug() << "dpi changed";
+
+        float oldDpiMultiplier = this->dpiMultiplier;
+        this->dpiMultiplier = dpi / 96.f;
+        float scale = this->dpiMultiplier / oldDpiMultiplier;
+
+        qDebug() << scale;
+        qDebug() << dpi;
+
+        this->resize(static_cast<int>(this->width() * scale),
+                     static_cast<int>(this->height() * scale));
+    }
+
+    return QWidget::nativeEvent(eventType, message, result);
+}
+#endif
+
 }  // namespace widgets
 }  // namespace chatterino