Line improvements, context menu implemented

Line still under construction, contex menu base implemented

1 files changed, 143 insertions, 8 deletions

diff --git a/Project/Line.cpp b/Project/Line.cpp
index b8686bb..54418d4 100644
--- a/Project/Line.cpp
+++ b/Project/Line.cpp
@@ -2,7 +2,14 @@
 
 Line::Line() {}
 Line::~Line() {}
-bool Line::Contains(wxPoint2DDouble position) const { return false; }
+bool Line::Contains(wxPoint2DDouble position) const
+{
+    if(PointToLineDistance(position) < 5.0) {
+	    return true;
+	}
+    return false;
+}
+
 void Line::Draw(wxPoint2DDouble translation, double scale) const
 {
     std::vector<wxPoint2DDouble> pointList = m_pointList;
@@ -15,6 +22,22 @@ void Line::Draw(wxPoint2DDouble translation, double scale) const
 	    pointList.push_back(m_position);
 	}
 
+    // Line selected (Layer 1).
+    if(m_selected) {
+	    glLineWidth(1.5 + m_borderSize * 2.0);
+	    glColor4d(0.0, 0.5, 1.0, 0.5);
+	    DrawLine(pointList);
+
+	    // Draw nodes selection.
+	    if(pointList.size() > 0) {
+		    DrawCircle(pointList[0], 5.0 + m_borderSize, 10, GL_POLYGON);
+		    if(m_inserted) {
+			    DrawCircle(pointList[pointList.size() - 1], 5.0 + +m_borderSize, 10, GL_POLYGON);
+			}
+		}
+	}
+
+    // Draw line (Layer 2)
     glLineWidth(1.5);
     glColor4d(0.2, 0.2, 0.2, 1.0);
     DrawLine(pointList);
@@ -27,9 +50,21 @@ void Line::Draw(wxPoint2DDouble translation, double scale) const
 		    DrawCircle(pointList[pointList.size() - 1], 5.0, 10, GL_POLYGON);
 		}
 	}
+
+    // Draw pickboxes (Layer 3).
+    if(m_showPickbox) {
+	    glPushMatrix();
+	    glLoadIdentity();
+
+	    for(int i = 2; i < (int)m_pointList.size() - 2; i++) {
+		    DrawPickbox(WorldToScreen(m_pointList[i], translation, scale));
+		}
+
+	    glPopMatrix();
+	}
 }
 
-wxCursor Line::GetBestPickboxCursor() const { return wxCURSOR_ARROW; }
+wxCursor Line::GetBestPickboxCursor() const { return wxCURSOR_SIZING; }
 bool Line::AddParent(Element* parent, wxPoint2DDouble position)
 {
     if(parent) {
@@ -71,10 +106,48 @@ bool Line::AddParent(Element* parent, wxPoint2DDouble position)
 	}
     return false;
 }
-bool Line::Intersects(wxRect2DDouble rect) const { return false; }
-void Line::MovePickbox(wxPoint2DDouble position) {}
-bool Line::PickboxContains(wxPoint2DDouble position) { return false; }
-void Line::Rotate() {}
+bool Line::Intersects(wxRect2DDouble rect) const
+{
+    for(auto it = m_pointList.begin(); it != m_pointList.end(); ++it) {
+	    if(rect.Contains(*it)) return true;
+	}
+    return false;
+}
+void Line::MovePickbox(wxPoint2DDouble position)
+{
+    if(m_activePickboxID == ID_PB_NONE) return;
+
+    for(int i = 2; i < (int)m_pointList.size() - 2; i++) {
+	    if(m_activePickboxID == i) {
+		    m_pointList[i] = m_movePts[i] + position - m_moveStartPt;
+			UpdateSwitchesPosition();
+		}
+	}
+}
+bool Line::PickboxContains(wxPoint2DDouble position)
+{
+    for(int i = 2; i < (int)m_pointList.size() - 2; i++) {
+	    wxRect2DDouble rect(m_pointList[i].m_x - 5.0, m_pointList[i].m_y - 5.0, 10.0, 10.0);
+	    if(rect.Contains(position)) {
+		    m_activePickboxID = i;
+		    return true;
+		}
+	}
+    return false;
+}
+void Line::RotateNode(Element* parent)
+{
+    if(parent == m_parentList[0]) {
+	    m_pointList[0] = parent->RotateAtPosition(m_pointList[0], m_rotationAngle);
+	}
+    else if(parent == m_parentList[1])
+	{
+	    m_pointList[m_pointList.size() - 1] =
+	        parent->RotateAtPosition(m_pointList[m_pointList.size() - 1], m_rotationAngle);
+	}
+    UpdateSwitchesPosition();
+}
+
 void Line::AddPoint(wxPoint2DDouble point)
 {
     if(m_parentList.size() != 0) {
@@ -82,19 +155,81 @@ void Line::AddPoint(wxPoint2DDouble point)
 	}
 }
 
+void Line::StartMove(wxPoint2DDouble position)
+{
+    m_moveStartPt = position;
+    m_movePts = m_pointList;
+}
+
 void Line::MoveNode(Element* parent, wxPoint2DDouble position)
 {
     // First bus.
     if(parent == m_parentList[0]) {
-	    m_pointList[0] = parent->GetMovePosition() + position - parent->GetMoveStartPosition();
+	    m_pointList[0] = m_movePts[0] + position - m_moveStartPt;
 	}
     // Second bus.
     else if(parent == m_parentList[1])
 	{
-	    m_pointList[m_pointList.size() - 1] = parent->GetMovePosition() + position - parent->GetMoveStartPosition();
+	    m_pointList[m_pointList.size() - 1] = m_movePts[m_pointList.size() - 1] + position - m_moveStartPt;
 	}
+
+    // If the line is selected, move all the points, except the switches and buses points.
+    if(m_selected) {
+	    for(int i = 2; i < (int)m_pointList.size() - 2; i++) {
+		    m_pointList[i] = m_movePts[i] + position - m_moveStartPt;
+		}
+	}
+
     // Recalculate switches positions
+    UpdateSwitchesPosition();
+}
+
+void Line::UpdateSwitchesPosition()
+{
     m_pointList[1] = GetSwitchPoint(m_parentList[0], m_pointList[0], m_pointList[2]);
     m_pointList[m_pointList.size() - 2] =
         GetSwitchPoint(m_parentList[1], m_pointList[m_pointList.size() - 1], m_pointList[m_pointList.size() - 3]);
 }
+
+double Line::PointToLineDistance(wxPoint2DDouble point) const
+{
+    //[Ref] http://geomalgorithms.com/a02-_lines.html
+    double distance = 100.0;  // Big initial distance.
+    wxPoint2DDouble p0 = point;
+
+    for(int i = 0; i < (int)m_pointList.size() - 1; i++) {
+	    double d = 0.0;
+
+	    wxPoint2DDouble p1 = m_pointList[i];
+	    wxPoint2DDouble p2 = m_pointList[i + 1];
+
+	    wxPoint2DDouble v = p2 - p1;
+	    wxPoint2DDouble w = p0 - p1;
+
+	    double c1 = w.m_x * v.m_x + w.m_y * v.m_y;
+	    double c2 = v.m_x * v.m_x + v.m_y * v.m_y;
+
+	    if(c1 <= 0.0) {
+		    d = std::sqrt(std::pow(p0.m_y - p1.m_y, 2) + std::pow(p0.m_x - p1.m_x, 2));
+		}
+	    else if(c2 <= c1)
+		{
+		    d = std::sqrt(std::pow(p0.m_y - p2.m_y, 2) + std::pow(p0.m_x - p2.m_x, 2));
+		}
+	    else
+		{
+		    d = std::abs((p2.m_y - p1.m_y) * p0.m_x - (p2.m_x - p1.m_x) * p0.m_y + p2.m_x * p1.m_y -
+		                 p2.m_y * p1.m_x) /
+		        std::sqrt(std::pow(p2.m_y - p1.m_y, 2) + std::pow(p2.m_x - p1.m_x, 2));
+		}
+	    if(d < distance) distance = d;
+	}
+
+    return distance;
+}
+
+bool Line::GetContextMenu(wxMenu& menu)
+{
+	menu.Append(ID_EDIT_LINE, _("Edit line"));
+	return true;
+}