Add 2d drawing for lines.

1 files changed, 71 insertions, 2 deletions

diff --git a/interactioncanvas.cpp b/interactioncanvas.cpp
index c289c40..2c2b81b 100644
--- a/interactioncanvas.cpp
+++ b/interactioncanvas.cpp
@@ -4,33 +4,85 @@ InteractionCanvas::InteractionCanvas()
 {
     setFocusPolicy(Qt::StrongFocus);
     setMouseTracking(true);
+    m_Line = NULL;
 }
 
 InteractionCanvas::~InteractionCanvas()
 {
-
+    delete tempPainter;
+    tempPainter = NULL;
+    delete normalPainter;
+    normalPainter = NULL;
 }
 
 void InteractionCanvas::mouseMoveEvent(QMouseEvent *mouseEvent)
 {
     qDebug() << "InteractionCanvas:" << mouseEvent->pos();
+    m_LastMousePosition = mouseEvent->pos();
+
+    if (m_Line)
+    {
+        m_Line->setP2(m_LastMousePosition);
+        update();
+    }
 }
 
 
 void InteractionCanvas::mousePressEvent(QMouseEvent *mouseEvent)
 {
     qDebug() << "InteractionCanvas: Mouse: pressed:" << mouseEvent->button();
+
+    if (mouseEvent->button() == Qt::LeftButton)
+    {
+        if (m_Line)
+        {
+            delete m_Line;
+            m_Line = NULL;
+        }
+
+        m_Line = new Line();
+        m_MousePressPoint = mouseEvent->pos();
+        m_LastMousePosition = m_MousePressPoint;
+        m_Line->setP1(m_MousePressPoint);
+        m_Line->setP2(m_LastMousePosition);
+    }
+
+    if (mouseEvent->button() ==  Qt::RightButton)
+    {
+        for(int i = 0; i < m_Lines.size(); i++)
+        {
+            m_Lines[i].setSelected(m_Lines[i].isHit(mouseEvent->pos()));
+        }
+    }
 }
 
 void InteractionCanvas::mouseReleaseEvent(QMouseEvent *mouseEvent)
 {
-    qDebug() << "InteractionCanvas: Mouse: released:"<< mouseEvent->button();
+    qDebug() << "InteractionCanvas: Mouse: released:" << mouseEvent->button();
+
+    if (mouseEvent->button() == Qt::LeftButton)
+    {
+
+        m_MouseReleasePoint = mouseEvent->pos();
+        m_Line->setP2(m_MouseReleasePoint);
+        m_Line->setSelected(false);
+        m_Lines.append(*m_Line);
+        m_Line = NULL;
+    }
+
+    update();
 }
 
 void InteractionCanvas::keyPressEvent(QKeyEvent *keyEvent)
 {
     qDebug() << "InteractionCanvas: Key: pressed:" << keyEvent->key() << "(" <<
              keyEvent->text() << ")" << (keyEvent->isAutoRepeat() ? "druck" : "");
+
+    if(!m_Lines.isEmpty() && keyEvent->key() == Qt::Key_Z && keyEvent->modifiers() == Qt::ControlModifier)
+    {
+        m_Lines.removeLast();
+        update();
+    }
 }
 
 void InteractionCanvas::keyReleaseEvent(QKeyEvent *keyEvent)
@@ -38,3 +90,20 @@ void InteractionCanvas::keyReleaseEvent(QKeyEvent *keyEvent)
     qDebug() << "InteractionCanvas: Key: released:" << keyEvent->key() << "(" <<
              keyEvent->text() << ")" << (keyEvent->isAutoRepeat() ? "druck" : "");
 }
+
+
+void InteractionCanvas::paintEvent(QPaintEvent *paintEvent)
+{
+    // Setup the Painters
+    QPainter painter(this);
+
+    if (m_Line)
+    {
+        m_Line->draw(&painter);
+    }
+
+    foreach (Line line, m_Lines)
+    {
+        line.draw(&painter);
+    }
+}