From 1a2a7e1cbc5c1df8fb9a1941007ecf7f10c775df Mon Sep 17 00:00:00 2001
From: ParkSuMin <kamalovap@paksurion.ru>
Date: Mon, 22 Dec 2025 23:15:01 +0300
Subject: [PATCH] =?UTF-8?q?Scalling=20=D0=BF=D0=BE=20=D0=BA=D0=BE=D0=BB?=
 =?UTF-8?q?=D0=B5=D1=81=D1=83=20=D0=BC=D1=8B=D1=88=D0=B8?=
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---
 Canvas.cpp | 21 +++++++++++----------
 Canvas.h   |  1 +
 2 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/Canvas.cpp b/Canvas.cpp
index c853cf3..0157215 100644
--- a/Canvas.cpp
+++ b/Canvas.cpp
@@ -653,7 +653,6 @@ void Canvas::keyPressEvent(QKeyEvent* event)
         }
         break;
     }
-
     case Qt::Key_Escape: {
         // Отмена текущего действия
         if (mode == Mode::DrawingLine && current_line) {
@@ -691,7 +690,6 @@ void Canvas::keyPressEvent(QKeyEvent* event)
         }
         break;
     }
-
     case Qt::Key_Z: {
         if (constraints_count > 0) {
             remove_constraint(constraints_count - 1);
@@ -700,19 +698,22 @@ void Canvas::keyPressEvent(QKeyEvent* event)
         }
         break;
     }
-    
-    case Qt::Key_Plus:
-        zoomIn();
-        break;
-
-    case Qt::Key_Minus:
-        zoomOut();
-        break;
     default:
         QWidget::keyPressEvent(event);
     }
 }
 
+void Canvas::wheelEvent(QWheelEvent* event)
+{
+    if (event->angleDelta().y() > 0) {
+        zoomIn();
+    }
+    else {
+        zoomOut();
+    }
+    event->accept();
+}
+
 void Canvas::leaveEvent(QEvent* event)
 {
     Q_UNUSED(event);
diff --git a/Canvas.h b/Canvas.h
index f7859e2..cd4ad82 100644
--- a/Canvas.h
+++ b/Canvas.h
@@ -69,6 +69,7 @@ protected:
     void mousePressEvent(QMouseEvent* event) override;
     void mouseMoveEvent(QMouseEvent* event) override;
     void mouseReleaseEvent(QMouseEvent* event) override;
+    void wheelEvent(QWheelEvent* event) override;
     void paintEvent(QPaintEvent* event) override;
     void keyPressEvent(QKeyEvent* event);
     void leaveEvent(QEvent* event) override;