1 files changed, 104 insertions, 0 deletions
diff --git a/Project/Constant.cpp b/Project/Constant.cpp
new file mode 100644
index 0000000..77a129e
--- /dev/null
+++ b/Project/Constant.cpp
@@ -0,0 +1,104 @@
+#include "Constant.h"
+#include "ConstantForm.h"
+
+Constant::Constant() : ControlElement()
+{
+    SetValue(m_value);
+    m_angle = 180.0;
+    Node* nodeOut = new Node(m_position + wxPoint2DDouble(m_width / 2, 0), Node::NODE_OUT, m_borderSize);
+    nodeOut->SetAngle(180.0);
+    nodeOut->StartMove(m_position);
+    m_nodeList.push_back(nodeOut);
+}
+
+Constant::~Constant() {}
+void Constant::Draw(wxPoint2DDouble translation, double scale) const
+{
+    glLineWidth(1.0);
+    if(m_selected) {
+        glColor4dv(m_selectionColour.GetRGBA());
+        double borderSize = (m_borderSize * 2.0 + 1.0) / scale;
+        DrawRectangle(m_position, m_width + borderSize, m_height + borderSize);
+    }
+    glColor4d(1.0, 1.0, 1.0, 1.0);
+    DrawRectangle(m_position, m_width, m_height);
+    glColor4d(0.0, 0.0, 0.0, 1.0);
+    DrawRectangle(m_position, m_width, m_height, GL_LINE_LOOP);
+
+    // Plot number.
+    glEnable(GL_TEXTURE_2D);
+    glColor4d(0.0, 0.0, 0.0, 1.0);
+    m_glStringValue->bind();
+    m_glStringValue->render(m_position.m_x, m_position.m_y);
+    glDisable(GL_TEXTURE_2D);
+
+    glColor4d(0.0, 0.0, 0.0, 1.0);
+    DrawNodes();
+}
+
+bool Constant::ShowForm(wxWindow* parent, Element* element)
+{
+    ConstantForm* form = new ConstantForm(parent, this);
+    if(form->ShowModal() == wxID_OK) {
+        form->Destroy();
+        return true;
+    }
+    form->Destroy();
+    return false;
+}
+
+void Constant::Rotate(bool clockwise)
+{
+    if(clockwise)
+        m_angle += 90.0;
+    else
+        m_angle -= 90.0;
+    if(m_angle >= 360.0)
+        m_angle = 0.0;
+    else if(m_angle < 0)
+        m_angle = 270.0;
+
+    UpdatePoints();
+
+    for(auto it = m_nodeList.begin(), itEnd = m_nodeList.end(); it != itEnd; ++it) {
+        Node* node = *it;
+        node->Rotate(clockwise);
+    }
+}
+
+void Constant::UpdatePoints()
+{
+    if(m_nodeList.size() != 0) {
+        if(m_angle == 0.0) {
+            m_nodeList[0]->SetPosition(m_position + wxPoint2DDouble(-m_width / 2, 0));
+        } else if(m_angle == 90.0) {
+            m_nodeList[0]->SetPosition(m_position + wxPoint2DDouble(0, -m_height / 2));
+        } else if(m_angle == 180.0) {
+            m_nodeList[0]->SetPosition(m_position + wxPoint2DDouble(m_width / 2, 0));
+        } else if(m_angle == 270.0) {
+            m_nodeList[0]->SetPosition(m_position + wxPoint2DDouble(0, m_height / 2));
+        }
+    }
+}
+
+void Constant::SetValue(double value)
+{
+    m_value = value;
+    wxString text = StringFromDouble(m_value);
+
+    wxFont font(m_fontSize, wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL);
+    wxScreenDC dc;
+
+    if(m_glStringValue) {
+        delete m_glStringValue;
+        m_glStringValue = NULL;
+    }
+    m_glStringValue = new wxGLString(text);
+    m_glStringValue->setFont(font);
+    m_glStringValue->consolidate(&dc);
+
+    m_width = m_glStringValue->getWidth() + 6 + 2 * m_borderSize;
+    m_height = m_glStringValue->getheight() + 6 + 2 * m_borderSize;
+
+    UpdatePoints();
+}
+\ No newline at end of file