Control editor implementation start

1 files changed, 204 insertions, 77 deletions

diff --git a/Project/ControlEditor.cpp b/Project/ControlEditor.cpp
index 1d1587c..f75478c 100644
--- a/Project/ControlEditor.cpp
+++ b/Project/ControlEditor.cpp
@@ -1,6 +1,107 @@
 #include "ControlEditor.h"
 
-ControlEditor::ControlEditor(wxWindow* parent) : ControlEditorBase(parent) { BuildControlElementPanel(); }
+#include "Camera.h"
+#include "ControlElement.h"
+#include "TransferFunction.h"
+
+ControlElementButton::ControlElementButton(wxWindow* parent, wxString label, wxImage image, wxWindowID id)
+    : wxWindow(parent, id)
+{
+    SetBackgroundColour(*wxWHITE);
+    // m_font = wxFont(8, wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL);
+    m_font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
+    m_label = label;
+    m_image = image;
+    m_imageSize = wxSize(image.GetWidth(), image.GetHeight());
+
+    // Calculate label size.
+    wxScreenDC dc;
+    dc.SetFont(m_font);
+    wxSize textSize = dc.GetTextExtent(label);
+
+    int buttonWidth = 0;
+    if(textSize.GetWidth() > m_imageSize.GetWidth()) {
+        buttonWidth = textSize.GetWidth();
+        m_imagePosition = wxPoint((buttonWidth - m_imageSize.GetWidth()) / 2 + m_borderSize, m_borderSize);
+        m_labelPosition = wxPoint(m_borderSize, m_imageSize.GetHeight() + m_borderSize);
+    } else {
+        buttonWidth = m_imageSize.GetWidth();
+        m_imagePosition = wxPoint(m_borderSize, m_borderSize);
+        m_labelPosition =
+            wxPoint((buttonWidth - textSize.GetWidth()) / 2 + m_borderSize, m_imageSize.GetHeight() + m_borderSize);
+    }
+    m_buttonSize =
+        wxSize(buttonWidth + 2 * m_borderSize, textSize.GetHeight() + m_imageSize.GetHeight() + 2 * m_borderSize);
+    SetMinSize(m_buttonSize + wxSize(m_borderSize, m_borderSize));
+
+    // Events.
+    Bind(wxEVT_PAINT, &ControlElementButton::OnPaint, this);
+    Bind(wxEVT_ENTER_WINDOW, &ControlElementButton::OnMouseEnter, this);
+    Bind(wxEVT_LEAVE_WINDOW, &ControlElementButton::OnMouseLeave, this);
+    Bind(wxEVT_LEFT_DOWN, &ControlElementButton::OnLeftClickDown, this);
+    Bind(wxEVT_LEFT_UP, &ControlElementButton::OnLeftClickUp, this);
+}
+
+ControlElementButton::~ControlElementButton() {}
+void ControlElementButton::OnPaint(wxPaintEvent& event)
+{
+    wxPaintDC dc(this);
+    wxGraphicsContext* gc = wxGraphicsContext::Create(dc);
+    if(gc) {
+        if(m_mouseAbove) {
+            if(m_selected) {
+                gc->SetPen(wxPen(wxColour(0, 125, 255, 255), m_borderSize - 1));
+                gc->SetBrush(wxBrush(wxColour(0, 125, 255, 100)));
+            } else {
+                gc->SetPen(*wxTRANSPARENT_PEN);
+                gc->SetBrush(wxBrush(wxColour(0, 125, 255, 70)));
+            }
+            gc->DrawRectangle(m_borderSize / 2, m_borderSize / 2, m_buttonSize.GetWidth(), m_buttonSize.GetHeight());
+        }
+        gc->DrawBitmap(gc->CreateBitmapFromImage(m_image), m_imagePosition.x, m_imagePosition.y, m_imageSize.GetWidth(),
+            m_imageSize.GetHeight());
+        gc->SetFont(m_font, *wxBLACK);
+        gc->DrawText(m_label, m_labelPosition.x, m_labelPosition.y);
+        delete gc;
+    }
+}
+
+void ControlElementButton::OnMouseEnter(wxMouseEvent& event)
+{
+    m_mouseAbove = true;
+    Refresh();
+    event.Skip();
+}
+
+void ControlElementButton::OnMouseLeave(wxMouseEvent& event)
+{
+    m_mouseAbove = false;
+    Refresh();
+    event.Skip();
+}
+
+void ControlElementButton::OnLeftClickDown(wxMouseEvent& event)
+{
+    m_selected = true;
+    Refresh();
+    event.Skip();
+}
+
+void ControlElementButton::OnLeftClickUp(wxMouseEvent& event)
+{
+    m_selected = false;
+    Refresh();
+    event.Skip();
+}
+
+ControlEditor::ControlEditor(wxWindow* parent)
+    : ControlEditorBase(parent)
+{
+    BuildControlElementPanel();
+    m_glContext = new wxGLContext(m_glCanvas);
+    m_camera = new Camera();
+    m_selectionRect = wxRect2DDouble(0, 0, 0, 0);
+}
 ControlEditor::~ControlEditor()
 {
     // m_tfButton->Disconnect(wxEVT_LEFT_DOWN, wxMouseEventHandler(ControlEditor::LeftClickDown), m_tfButton, this);
@@ -12,8 +113,8 @@ void ControlEditor::BuildControlElementPanel()
     wxWrapSizer* wrapSizer = new wxWrapSizer();
     m_panelControlElements->SetSizer(wrapSizer);
 
-    ControlElementButton* ioButton = new ControlElementButton(m_panelControlElements, _("In/Out"),
-                                                              wxImage("..\\data\\images\\control\\io.png"), ID_IO);
+    ControlElementButton* ioButton = new ControlElementButton(
+        m_panelControlElements, _("In/Out"), wxImage("..\\data\\images\\control\\io.png"), ID_IO);
     wrapSizer->Add(ioButton, 0, wxALL, 5);
     ioButton->Bind(wxEVT_LEFT_DOWN, &ControlEditor::LeftClickDown, this);
 
@@ -22,8 +123,8 @@ void ControlEditor::BuildControlElementPanel()
     wrapSizer->Add(tfButton, 0, wxALL, 5);
     tfButton->Bind(wxEVT_LEFT_DOWN, &ControlEditor::LeftClickDown, this);
 
-    ControlElementButton* sumButton = new ControlElementButton(m_panelControlElements, _("Sum"),
-                                                               wxImage("..\\data\\images\\control\\sum.png"), ID_SUM);
+    ControlElementButton* sumButton = new ControlElementButton(
+        m_panelControlElements, _("Sum"), wxImage("..\\data\\images\\control\\sum.png"), ID_SUM);
     wrapSizer->Add(sumButton, 0, wxALL, 5);
     sumButton->Bind(wxEVT_LEFT_DOWN, &ControlEditor::LeftClickDown, this);
 
@@ -47,8 +148,8 @@ void ControlEditor::BuildControlElementPanel()
     wrapSizer->Add(multButton, 0, wxALL, 5);
     multButton->Bind(wxEVT_LEFT_DOWN, &ControlEditor::LeftClickDown, this);
 
-    ControlElementButton* satButton = new ControlElementButton(m_panelControlElements, _("Saturation"),
-                                                               wxImage("..\\data\\images\\control\\sat.png"), ID_SAT);
+    ControlElementButton* satButton = new ControlElementButton(
+        m_panelControlElements, _("Saturation"), wxImage("..\\data\\images\\control\\sat.png"), ID_SAT);
     wrapSizer->Add(satButton, 0, wxALL, 5);
     satButton->Bind(wxEVT_LEFT_DOWN, &ControlEditor::LeftClickDown, this);
 
@@ -64,6 +165,31 @@ void ControlEditor::LeftClickDown(wxMouseEvent& event)
     event.Skip();
 }
 
+void ControlEditor::SetViewport()
+{
+    glClearColor(1.0, 1.0, 1.0, 1.0); // White background.
+    glClear(GL_COLOR_BUFFER_BIT);
+    glDisable(GL_DEPTH_TEST);
+    glDisable(GL_TEXTURE_2D);
+    glEnable(GL_COLOR_MATERIAL);
+    glEnable(GL_BLEND);
+    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+    glEnable(GL_LINE_SMOOTH);
+
+    double width = m_glCanvas->GetSize().x - 1;
+    double height = m_glCanvas->GetSize().y - 1;
+
+    // Viewport fit the screen.
+    glViewport(0, 0, width, height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    gluOrtho2D(0.0, width, height, 0.0);
+
+    glMatrixMode(GL_MODELVIEW);
+    glLoadIdentity();
+}
+
 void ControlEditor::AddElement(ControlElementButtonID id)
 {
     switch(id) {
@@ -97,92 +223,93 @@ void ControlEditor::AddElement(ControlElementButtonID id)
     }
 }
 
-ControlElementButton::ControlElementButton(wxWindow* parent, wxString label, wxImage image, wxWindowID id)
-    : wxWindow(parent, id)
+void ControlEditor::OnPaint(wxPaintEvent& event)
 {
-    SetBackgroundColour(*wxWHITE);
-    //m_font = wxFont(8, wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL);
-    m_font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
-    m_label = label;
-    m_image = image;
-    m_imageSize = wxSize(image.GetWidth(), image.GetHeight());
+    wxPaintDC dc(m_glCanvas);
+    m_glContext->SetCurrent(*m_glCanvas);
+    SetViewport();
 
-    // Calculate label size.
-    wxScreenDC dc;
-    dc.SetFont(m_font);
-    wxSize textSize = dc.GetTextExtent(label);
+    // Set GLCanvas scale and translation.
+    glScaled(m_camera->GetScale(), m_camera->GetScale(), 0.0);                         // Scale
+    glTranslated(m_camera->GetTranslation().m_x, m_camera->GetTranslation().m_y, 0.0); // Translation
 
-    int buttonWidth = 0;
-    if(textSize.GetWidth() > m_imageSize.GetWidth()) {
-        buttonWidth = textSize.GetWidth();
-        m_imagePosition = wxPoint((buttonWidth - m_imageSize.GetWidth()) / 2 + m_borderSize, m_borderSize);
-        m_labelPosition = wxPoint(m_borderSize, m_imageSize.GetHeight() + m_borderSize);
-    } else {
-        buttonWidth = m_imageSize.GetWidth();
-        m_imagePosition = wxPoint(m_borderSize, m_borderSize);
-        m_labelPosition =
-            wxPoint((buttonWidth - textSize.GetWidth()) / 2 + m_borderSize, m_imageSize.GetHeight() + m_borderSize);
-    }
-    m_buttonSize =
-        wxSize(buttonWidth + 2 * m_borderSize, textSize.GetHeight() + m_imageSize.GetHeight() + 2 * m_borderSize);
-    SetMinSize(m_buttonSize + wxSize(m_borderSize, m_borderSize));
+    // Selection rectangle
+    glLineWidth(1.0);
+    glColor4d(0.0, 0.5, 1.0, 1.0);
+    glBegin(GL_LINE_LOOP);
+    glVertex2d(m_selectionRect.m_x, m_selectionRect.m_y);
+    glVertex2d(m_selectionRect.m_x, m_selectionRect.m_y + m_selectionRect.m_height);
+    glVertex2d(m_selectionRect.m_x + m_selectionRect.m_width, m_selectionRect.m_y + m_selectionRect.m_height);
+    glVertex2d(m_selectionRect.m_x + m_selectionRect.m_width, m_selectionRect.m_y);
+    glEnd();
+    glColor4d(0.0, 0.5, 1.0, 0.3);
+    glBegin(GL_QUADS);
+    glVertex2d(m_selectionRect.m_x, m_selectionRect.m_y);
+    glVertex2d(m_selectionRect.m_x, m_selectionRect.m_y + m_selectionRect.m_height);
+    glVertex2d(m_selectionRect.m_x + m_selectionRect.m_width, m_selectionRect.m_y + m_selectionRect.m_height);
+    glVertex2d(m_selectionRect.m_x + m_selectionRect.m_width, m_selectionRect.m_y);
+    glEnd();
 
-    // Events.
-    Bind(wxEVT_PAINT, &ControlElementButton::OnPaint, this);
-    Bind(wxEVT_ENTER_WINDOW, &ControlElementButton::OnMouseEnter, this);
-    Bind(wxEVT_LEAVE_WINDOW, &ControlElementButton::OnMouseLeave, this);
-    Bind(wxEVT_LEFT_DOWN, &ControlElementButton::OnLeftClickDown, this);
-    Bind(wxEVT_LEFT_UP, &ControlElementButton::OnLeftClickUp, this);
+    glFlush(); // Sends all pending information directly to the GPU.
+    m_glCanvas->SwapBuffers();
+    event.Skip();
 }
+void ControlEditor::OnDoubleClick(wxMouseEvent& event) {}
 
-ControlElementButton::~ControlElementButton() {}
-void ControlElementButton::OnPaint(wxPaintEvent& event)
+void ControlEditor::OnLeftClickDown(wxMouseEvent& event)
 {
-    wxPaintDC dc(this);
-    wxGraphicsContext* gc = wxGraphicsContext::Create(dc);
-    if(gc) {
-        if(m_mouseAbove) {
-            if(m_selected) {
-                gc->SetPen(wxPen(wxColour(0, 125, 255, 255), m_borderSize - 1));
-                gc->SetBrush(wxBrush(wxColour(0, 125, 255, 100)));
-            } else {
-                gc->SetPen(*wxTRANSPARENT_PEN);
-                gc->SetBrush(wxBrush(wxColour(0, 125, 255, 70)));
-            }
-            gc->DrawRectangle(m_borderSize / 2, m_borderSize / 2, m_buttonSize.GetWidth(), m_buttonSize.GetHeight());
-        }
-        gc->DrawBitmap(gc->CreateBitmapFromImage(m_image), m_imagePosition.x, m_imagePosition.y, m_imageSize.GetWidth(),
-                       m_imageSize.GetHeight());
-        gc->SetFont(m_font, *wxBLACK);
-        gc->DrawText(m_label, m_labelPosition.x, m_labelPosition.y);
-        delete gc;
-    }
-}
+    wxPoint2DDouble clickPoint = event.GetPosition();
 
-void ControlElementButton::OnMouseEnter(wxMouseEvent& event)
-{
-    m_mouseAbove = true;
-    Refresh();
-    event.Skip();
-}
+    m_mode = MODE_SELECTION_RECT;
+    m_startSelRect = m_camera->ScreenToWorld(clickPoint);
 
-void ControlElementButton::OnMouseLeave(wxMouseEvent& event)
-{
-    m_mouseAbove = false;
-    Refresh();
+    Redraw();
     event.Skip();
 }
 
-void ControlElementButton::OnLeftClickDown(wxMouseEvent& event)
+void ControlEditor::OnLeftClickUp(wxMouseEvent& event)
 {
-    m_selected = true;
-    Refresh();
+    if(m_mode != MODE_INSERT) {
+        m_mode = MODE_EDIT;
+    }
+    m_selectionRect = wxRect2DDouble(0, 0, 0, 0);
+    Redraw();
     event.Skip();
 }
 
-void ControlElementButton::OnLeftClickUp(wxMouseEvent& event)
+void ControlEditor::OnMiddleDown(wxMouseEvent& event) {}
+void ControlEditor::OnMiddleUp(wxMouseEvent& event) {}
+
+void ControlEditor::OnMouseMotion(wxMouseEvent& event)
 {
-    m_selected = false;
-    Refresh();
+    wxPoint2DDouble clickPoint = event.GetPosition();
+    bool redraw = false;
+
+    switch(m_mode) {
+        case MODE_SELECTION_RECT: {
+            wxPoint2DDouble currentPos = m_camera->ScreenToWorld(clickPoint);
+            double x, y, w, h;
+            if(currentPos.m_x < m_startSelRect.m_x) {
+                x = currentPos.m_x;
+                w = m_startSelRect.m_x - currentPos.m_x;
+            } else {
+                x = m_startSelRect.m_x;
+                w = currentPos.m_x - m_startSelRect.m_x;
+            }
+            if(currentPos.m_y < m_startSelRect.m_y) {
+                y = currentPos.m_y;
+                h = m_startSelRect.m_y - currentPos.m_y;
+            } else {
+                y = m_startSelRect.m_y;
+                h = currentPos.m_y - m_startSelRect.m_y;
+            }
+
+            m_selectionRect = wxRect2DDouble(x, y, w, h);
+            redraw = true;
+        } break;
+        default:
+            break;
+    }
+    if(redraw) Redraw();
     event.Skip();
 }