Update built-in cursors. (#246)

- Not all Qt::CursorShapes are supported on all platforoms
   - e.g. on Wayland (Ubuntu 24.04) Qt::SizeAllCursor is not available and
     falls back to its arrow cursor
   - added built-in Crosshair and Move cursors, so that they should be available
     across all platforms
- Redesigned existing object creation cursors
   - Crosshairs are now 3-pixels wide
   - Added white outlines to all cursors to aid in visibility against diverse
     backgrounds

glabels/Cursors.cpp

@@ -26,6 +26,20 @@
 namespace glabels
 {
 
+	Cursors::Crosshair::Crosshair()
+		: QCursor( QPixmap(":cursors/32x32/cursor_crosshair.png"), 15, 15 )
+	{
+		// empty
+	}
+
+
+	Cursors::Move::Move()
+		: QCursor( QPixmap(":cursors/32x32/cursor_move.png"), 15, 15 )
+	{
+		// empty
+	}
+
+
 	Cursors::Barcode::Barcode()
 		: QCursor( QPixmap(":cursors/32x32/cursor_barcode.png"), 7, 7 )
 	{

glabels/Cursors.h

@@ -35,6 +35,20 @@ namespace glabels
 	{
 
 		
+		class Crosshair : public QCursor
+		{
+		public:
+			Crosshair();
+		};
+
+
+		class Move : public QCursor
+		{
+		public:
+			Move();
+		};
+
+
 		class Barcode : public QCursor
 		{
 		public:

glabels/LabelEditor.cpp

@@ -635,11 +635,11 @@ namespace glabels
 				if ( mModel->isSelectionAtomic() &&
 				     !mModel->handleAt( mScale, xWorld, yWorld ).isNull() )
 				{
-					setCursor( Qt::CrossCursor );
+					setCursor( Cursors::Crosshair() );
 				}
 				else if ( mModel->objectAt( mScale, xWorld, yWorld ) )
 				{
-					setCursor( Qt::SizeAllCursor );
+					setCursor( Cursors::Move() );
 				}
 				else
 				{

glabels/cursors.qrc

@@ -4,9 +4,11 @@
 <qresource>
 	<file>cursors/32x32/cursor_barcode.png</file>
 	<file>cursors/32x32/cursor_box.png</file>
+	<file>cursors/32x32/cursor_crosshair.png</file>
 	<file>cursors/32x32/cursor_ellipse.png</file>
 	<file>cursors/32x32/cursor_image.png</file>
 	<file>cursors/32x32/cursor_line.png</file>
+	<file>cursors/32x32/cursor_move.png</file>
 	<file>cursors/32x32/cursor_text.png</file>
 </qresource>
 </RCC>