Properly update angles when choosing one

In the drop-down in the view status. Previously, if the angle was at
45.23 degrees and you tried to set it to 45 degrees, it would get
ignored because the fraction was rounded off in the box.

ChangeLog

@@ -72,6 +72,7 @@ Unreleased Version 2.2.2-pre
  * Fix: Properly save background color of annotations in ORA files.
  * Feature: Allow toggling a "sketch mode" on layers, which will change the opacity and/or tint the layer locally. The exact look of this can be configured in the layer properties. Thanks abrasivetroop and leandro2222 for suggesting.
  * Feature: Use the sketch mode tinting for onion skins as well, since it gives better results when there's colored areas involved.
+ * Fix: Properly update rotation when choosing an angle from the drop-down in the status bar when the angle is fractionally off the chosen angle. Thanks annoy for reporting.
 
 2024-11-06 Version 2.2.2-beta.4
  * Fix: Solve rendering glitches with selection outlines that happen on some systems. Thanks xxxx for reporting.

src/desktop/widgets/viewstatus.cpp

@@ -76,20 +76,21 @@ ViewStatus::ViewStatus(QWidget *parent)
 	m_angleBox->setEditable(true);
 	m_angleBox->setToolTip(tr("Canvas Rotation"));
 
+	// Trailing spaces so that these always emit editTextChanged.
 	m_angleBox->addItems({
-		QStringLiteral("-135°"),
-		QStringLiteral("-90°"),
-		QStringLiteral("-45°"),
-		QStringLiteral("0°"),
-		QStringLiteral("45°"),
-		QStringLiteral("90°"),
-		QStringLiteral("135°"),
-		QStringLiteral("180°"),
+		QStringLiteral("-135° "),
+		QStringLiteral("-90° "),
+		QStringLiteral("-45° "),
+		QStringLiteral("0° "),
+		QStringLiteral("45° "),
+		QStringLiteral("90° "),
+		QStringLiteral("135 °"),
+		QStringLiteral("180 °"),
 	});
 	m_angleBox->setEditText(QStringLiteral("0°"));
 
 	m_angleBox->lineEdit()->setValidator(new QRegularExpressionValidator(
-		QRegularExpression("-?[0-9]{0,3}°?"), this));
+		QRegularExpression("\\A\\s*-?[0-9]{0,3}°?\\s*"), this));
 	connect(
 		m_angleBox, &QComboBox::editTextChanged, this,
 		&ViewStatus::angleBoxChanged);