Scale capture preview if it exceeds screen bounds

Signed-off-by: mio <stigma@disroot.org>

src/app/captureFrame.cpp

@@ -6,6 +6,7 @@
 #include <kpushbutton.h>
 #include <kstatusbar.h>
 #include <kstdguiitem.h>
+#include <tqapplication.h>
 #include <tqdialog.h>
 #include <tqhbox.h>
 #include <tqlabel.h>
@@ -69,7 +70,16 @@ public:
          , m_title( TheStream::prettyTitle() )
    {
       (new TQVBoxLayout( this ))->setAutoAdd( true );
-      (new TQLabel( this ))->setPixmap( frame );
+
+      // Scale the image to fit within the current screen's size.
+      TQRect screenRect = tqApp->desktop()->availableGeometry( this );
+      if ( screenRect.contains( frame.rect() ) ) {
+         (new TQLabel( this ))->setPixmap( frame );
+      } else {
+         TQSize scaledSize = screenRect.size() * 0.9;
+         TQImage scaledImage = frame.scale( scaledSize, TQImage::ScaleMin );
+         (new TQLabel( this ))->setPixmap( scaledImage );
+      }
 
       TQHBox *box = new TQHBox( this );
       KPushButton *o = new KPushButton( KStdGuiItem::save(), box );