Вертикальное и горизонтальное выравнивание

Canvas.cpp

@@ -81,9 +81,23 @@ void Canvas::mousePressEvent(QMouseEvent* event)
 		if (p) {
 			draggedPoint = p;
 			dragOffset = scene - QPointF(*p->x, *p->y);
-			return;
 		}
 	}
+
+	else if (mode == Mode::Horizontal || mode == Mode::Vertical) {
+		Line* found = findAt(scene);
+
+		if (found) {
+			if (mode == Mode::Horizontal)
+				sys.addConstraintHorizontal(*found, constraints_count++);
+			else
+				sys.addConstraintVertical(*found, constraints_count++);
+			update();
+		}
+		mode = Mode::None;
+		after_constraint = true;
+	}
+
 	else if (mode == Mode::DrawingLine) {
 		if (!current_line) {
 			current_line = new Line();

Canvas.h

@@ -19,7 +19,9 @@ enum class Mode : int
     None = 0,
     DrawingLine = 1,
     Parallel = 2,
-    Coincedent = 3
+    Coincedent = 3,
+    Horizontal = 4,
+    Vertical = 5
 };
 
 // Удобный тип для хранения пары параллельных линий (порядок не важен)

DRAWer_2_0.cpp

@@ -30,8 +30,13 @@ void DRAWer_2_0::on_P2P_Button_clicked()
 }
 
 
-void DRAWer_2_0::on_FIX_Button_clicked()
+void DRAWer_2_0::on_Horizontal_Button_clicked()
 {
-
+    ui.widget->changeMode(Mode::Horizontal);
+}
+
+void DRAWer_2_0::on_Vertical_Button_clicked()
+{
+    ui.widget->changeMode(Mode::Vertical);
 }
 

DRAWer_2_0.h

@@ -18,7 +18,9 @@ private slots:
 
     void on_P2P_Button_clicked();
 
-    void on_FIX_Button_clicked();
+    void on_Horizontal_Button_clicked();
+
+    void on_Vertical_Button_clicked();
 
 private:
     Ui::DRAWer_2_0Class ui;

DRAWer_2_0.ui

@@ -66,9 +66,16 @@
        </widget>
       </item>
       <item>
-       <widget class="QPushButton" name="FIX_Button">
+       <widget class="QPushButton" name="Vertical_Button">
         <property name="text">
-         <string>Fix Point</string>
+         <string>Vertical</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QPushButton" name="Horizontal_Button">
+        <property name="text">
+         <string>Horizontal</string>
         </property>
        </widget>
       </item>
@@ -117,7 +124,7 @@
      <x>0</x>
      <y>0</y>
      <width>700</width>
-     <height>22</height>
+     <height>21</height>
     </rect>
    </property>
   </widget>