fix: Ensure viewport updates and consistent key handling in drawing tools

Co-authored-by: aider (gemini/gemini-2.5-pro) <aider@aider.chat>

src/LineTool.cpp

@@ -190,16 +190,6 @@ void LineTool::mouseMoveEvent(QMouseEvent *event)
 
 void LineTool::keyPressEvent(QKeyEvent *event)
 {
-    if (event->key() == Qt::Key_Escape) {
-        if (m_isDefiningLine) {
-            m_isDefiningLine = false;
-            m_viewport->setProperty("dimensionInput", QVariant(""));
-            m_viewport->setProperty("angleInput", QVariant(""));
-            m_viewport->deactivateActiveTool();
-            return;
-        }
-    }
-
     if (m_isDefiningLine) {
         if (event->key() == Qt::Key_Tab) {
             QString currentMode = m_viewport->property("dimensionEditMode").toString();
@@ -208,6 +198,7 @@ void LineTool::keyPressEvent(QKeyEvent *event)
             } else {
                 m_viewport->setProperty("dimensionEditMode", "length");
             }
+            m_viewport->update();
             return;
         }
 
@@ -218,19 +209,22 @@ void LineTool::keyPressEvent(QKeyEvent *event)
         if (event->key() >= Qt::Key_0 && event->key() <= Qt::Key_9) {
             currentInput += event->text();
             m_viewport->setProperty(propertyName, currentInput);
+            m_viewport->update();
             return;
         } else if (event->key() == Qt::Key_Period) {
             if (!currentInput.contains('.')) {
                 currentInput += '.';
                 m_viewport->setProperty(propertyName, currentInput);
-                return;
+                m_viewport->update();
             }
+            return;
         } else if (event->key() == Qt::Key_Backspace) {
             if (!currentInput.isEmpty()) {
                 currentInput.chop(1);
                 m_viewport->setProperty(propertyName, currentInput);
-                return;
+                m_viewport->update();
             }
+            return;
         } else if (event->key() == Qt::Key_Return || event->key() == Qt::Key_Enter) {
             QVector3D worldPos;
             QVector3D startPos(m_firstLinePoint.X(), m_firstLinePoint.Y(), m_firstLinePoint.Z());
@@ -322,6 +316,12 @@ void LineTool::keyPressEvent(QKeyEvent *event)
             m_viewport->setProperty("angleInput", QVariant(""));
             m_viewport->setProperty("dimensionEditMode", "length");
             m_viewport->setProperty("isChainedLine", true);
+            m_viewport->update();
+            return;
+        } else if (event->key() == Qt::Key_Escape) {
+            deactivate();
+            m_viewport->deactivateActiveTool();
+            m_viewport->update();
             return;
         }
     }

src/RectangleTool.cpp

@@ -107,9 +107,7 @@ void RectangleTool::mousePressEvent(QMouseEvent *event)
         }
         p.SetCoord(worldPos.x(), worldPos.y(), worldPos.z());
         emit m_viewport->rectangleAdded(m_firstRectanglePoint, p);
-        m_isDefiningRectangle = false;
+        deactivate();
-        m_viewport->setProperty("widthInput", "");
-        m_viewport->setProperty("heightInput", "");
     }
 }