Created manager for selection, integrated into Mixer. Work in progress.

CMakeLists.txt

@@ -210,6 +210,7 @@ set(VMIX_SRCS
     View.cpp
     Source.cpp
     Session.cpp
+    Selection.cpp
     SessionSource.cpp
     SessionVisitor.cpp
     GarbageVisitor.cpp

Decorations.cpp

@@ -314,7 +314,7 @@ void Icon::accept(Visitor& v)
 }
 
 
-Selection::Selection()
+Box::Box()
 {
 //    color = glm::vec4( 1.f, 1.f, 1.f, 1.f);
     color = glm::vec4( 1.f, 0.f, 0.f, 1.f);
@@ -322,7 +322,7 @@ Selection::Selection()
 
 }
 
-void Selection::draw (glm::mat4 modelview, glm::mat4 projection)
+void Box::draw (glm::mat4 modelview, glm::mat4 projection)
 {
     if ( !initialized() ) {
         square_->init();

Decorations.h

@@ -71,10 +71,10 @@ protected:
     Type type_;
 };
 
-class Selection : public Group
+class Box : public Group
 {
 public:
-    Selection();
+    Box();
 
     void draw (glm::mat4 modelview, glm::mat4 projection) override;
 

Mixer.cpp

@@ -326,10 +326,13 @@ void Mixer::deleteSource(Source *s)
 {
     if ( s != nullptr )
     {
-        // in case..
+        // in case it was the current source...
         unsetCurrentSource();
 
-        // keep name
+        // in case it was selected..
+        selection().remove(s);
+
+        // keep name for log
         std::string name = s->name();
 
         // remove source Nodes from all views
@@ -340,6 +343,7 @@ void Mixer::deleteSource(Source *s)
         // delete source
         session_->deleteSource(s);
 
+        // log
         Log::Notify("Source %s deleted.", name.c_str());
     }
 }
@@ -377,16 +381,28 @@ void Mixer::setCurrentSource(SourceList::iterator it)
     if ( current_source_ == it )
         return;
 
+    // clear current (even if it is invalid)
     unsetCurrentSource();
 
-    // change current
+    // change current if it is valid
     if ( it != session_->end() ) {
         current_source_ = it;
         current_source_index_ = session_->index(it);
+        // add to selection
+        selection().add(*it);
+        // show status as current
         (*current_source_)->setMode(Source::CURRENT);
     }
 }
 
+Source * Mixer::findSource (Node *node)
+{
+    SourceList::iterator it = session_->find(node);
+    if (it != session_->end())
+        return *it;
+    return nullptr;
+}
+
 void Mixer::setCurrentSource(Node *node)
 {
     setCurrentSource( session_->find(node) );
@@ -423,8 +439,12 @@ void Mixer::setCurrentNext()
 void Mixer::unsetCurrentSource()
 {
     // discard overlay for previously current source
-    if ( current_source_ != session_->end() )
+    if ( current_source_ != session_->end() ) {
+        // remove from selection
+        selection().remove( *current_source_ );
+        // show status as normal
         (*current_source_)->setMode(Source::NORMAL);        
+    }
 
     // deselect current source
     current_source_ = session_->end();
@@ -551,6 +571,8 @@ void Mixer::swap()
         return;
 
     if (session_) {
+        // clear selection
+        selection().clear();
         // detatch current session's nodes from views
         for (auto source_iter = session_->begin(); source_iter != session_->end(); source_iter++)
         {

Mixer.h

@@ -8,8 +8,7 @@
 
 #include "View.h"
 #include "Session.h"
-#include "Source.h"
-
+#include "Selection.h"
 
 class Mixer
 {
@@ -27,6 +26,13 @@ public:
         return _instance;
     }
 
+    static Selection& selection()
+    {
+        // The only instance
+        static Selection _selection;
+        return _selection;
+    }
+
     // update session and all views
     void update();
 
@@ -52,9 +58,11 @@ public:
     void unsetCurrentSource ();
     void cloneCurrentSource ();
     void deleteCurrentSource ();
-    Source * currentSource();
     int  indexCurrentSource ();
 
+    Source * currentSource ();
+    Source * findSource (Node *node);
+
     // management of view
     View *view (View::Mode m);
     void setCurrentView (View::Mode m);

RenderingManager.cpp

@@ -674,6 +674,9 @@ void RenderingWindow::draw(FrameBuffer *fb)
             ShadingProgram::enduse();
             glBindTexture(GL_TEXTURE_2D, 0);
         }
+        else {
+            Log::Info("No Framebuffer Provided to draw Rendering Window");
+        }
 
         // restore attribs
         Rendering::manager().popAttrib();

Selection.cpp

@@ -0,0 +1,67 @@
+#include <algorithm>
+
+#include "Selection.h"
+
+Selection::Selection()
+{
+
+}
+
+
+void Selection::add(Source *s)
+{
+    selection_.push_back(s);
+    s->setMode(Source::ACTIVE);
+}
+
+void Selection::add(SourceList l)
+{
+    for(auto it = l.begin(); it != l.end(); it++)
+        (*it)->setMode(Source::ACTIVE);
+
+    // generate new set as union of current selection and give list
+    SourceList result;
+    std::set_union(selection_.begin(), selection_.end(), l.begin(), l.end(), std::inserter(result, result.begin()) );
+    // set new selection
+    selection_ = SourceList(result);
+}
+
+void Selection::remove(Source *s)
+{
+    SourceList::iterator it = find(s);
+    if (it != selection_.end()) {
+        selection_.erase(it);
+        s->setMode(Source::NORMAL);
+    }
+}
+
+void Selection::remove(SourceList l)
+{
+    for(auto it = l.begin(); it != l.end(); it++)
+        (*it)->setMode(Source::NORMAL);
+
+    // generate new set as difference of current selection and give list
+    SourceList result;
+    std::set_difference(selection_.begin(), selection_.end(), l.begin(), l.end(), std::inserter(result, result.begin()) );
+    // set new selection
+    selection_ = SourceList(result);
+}
+
+void Selection::clear()
+{
+    for(auto it = selection_.begin(); it != selection_.end(); it++)
+        (*it)->setMode(Source::NORMAL);
+
+    selection_.clear();
+}
+
+SourceList::iterator Selection::find(Source *s)
+{
+    return std::find(selection_.begin(), selection_.end(), s);
+}
+
+
+bool Selection::contains (Source *s)
+{
+    return (find(s) != selection_.end());
+}

Selection.h

@@ -0,0 +1,26 @@
+#ifndef SELECTION_H
+#define SELECTION_H
+
+#include "Source.h"
+
+class Selection
+{
+
+public:
+    Selection();
+
+    void add    (Source *s);
+    void add    (SourceList l);
+    void remove (Source *s);
+    void remove (SourceList l);
+    void clear  ();
+
+    bool contains (Source *s);
+
+protected:
+    SourceList::iterator find (Source *s);
+    SourceList selection_;
+
+};
+
+#endif // SELECTION_H

UserInterfaceManager.cpp

@@ -42,6 +42,7 @@
 #include "ImGuiVisitor.h"
 #include "GstToolkit.h"
 #include "Mixer.h"
+#include "Selection.h"
 #include "FrameBuffer.h"
 #include "MediaPlayer.h"
 #include "MediaSource.h"
@@ -250,7 +251,7 @@ void UserInterface::handleKeyboard()
         }
         else if (ImGui::IsKeyPressed( GLFW_KEY_A )) {
             // select all
-            Mixer::manager().currentView()->selectall();
+//            Mixer::manager().currentView()->selectall();
         }
 
     }
@@ -408,19 +409,34 @@ void UserInterface::handleMouse()
             // ask the view what was picked
             picked = Mixer::manager().currentView()->pick(point);
 
+            // if nothing picked,
             if ( picked.first == nullptr ) {
-                // nothing picked, unset current
+                // unset current
                 Mixer::manager().unsetCurrentSource();
                 navigator.hidePannel();
-            } else {
+                // clear selection
+                Mixer::selection().clear();
+            }
+            // something was picked
+            else {
+                // get if a source was picked
+                Source *s = Mixer::manager().findSource(picked.first);
+
+                if (keyboard_modifier_active) {
+                    // selection
+                    Mixer::selection().add( s );
+                }
+                // make current
+                else {
                     Mixer::manager().setCurrentSource( picked.first );
                     if (navigator.pannelVisible())
                         navigator.showPannelSource( Mixer::manager().indexCurrentSource() );
                 }
 
+            }
 
             // TODO deselect if current source is not in selection
-            Mixer::manager().currentView()->deselect();
+//            Mixer::manager().currentView()->deselect();
         }
         else if ( ImGui::IsMouseReleased(ImGuiMouseButton_Left) )
         {

View.cpp

@@ -30,9 +30,6 @@ bool View::need_deep_update_ = true;
 
 View::View(Mode m) : mode_(m)
 {
-    selection_ = new Selection;
-    selection_->visible_ = false;
-    scene.ws()->attach(selection_);
 }
 
 void View::restoreSettings()
@@ -100,41 +97,28 @@ std::pair<Node *, glm::vec2> View::pick(glm::vec3 point)
         picked = pv.picked().back();
 
         //DEBUG
-        select(glm::vec2(-1.f, -1.f), glm::vec2(1.f, 1.f));
+//        select(glm::vec2(-1.f, -1.f), glm::vec2(1.f, 1.f));
 
 
     }
     // cancel selection on clic in background
     else {
-        deselect();
+//        deselect();
     }
 
     return picked;
 }
 
-
-void View::select(glm::vec2 A, glm::vec2 B)
-{
-
-}
-
-void View::selectall()
+void GeometryView::select(glm::vec2 A, glm::vec2 B)
 {
     for(auto it = scene.ws()->begin(); it != scene.ws()->end(); it++) {
-        if ( *it != selection_)
-            selection_->attach(*it);
+        if ( *it != selection_box_)
+            selection_box_->attach(*it);
     }
 
-    selection_->visible_ = true;
+    selection_box_->visible_ = true;
 }
 
-void View::deselect()
-{
-    selection_->clear();
-    selection_->visible_ = false;
-}
-
-
 
 MixingView::MixingView() : View(MIXING)
 {
@@ -334,6 +318,10 @@ GeometryView::GeometryView() : View(GEOMETRY)
     border->color = glm::vec4( COLOR_FRAME, 1.f );
     scene.fg()->attach(border);
 
+    // selection box
+    selection_box_ = new Box;
+    selection_box_->visible_ = false;
+    scene.ws()->attach(selection_box_);
 }
 
 void GeometryView::update(float dt)

View.h

@@ -58,9 +58,7 @@ public:
         return Cursor();
     }
     // select sources provided a start and end selection points in screen coordinates
-    virtual void select(glm::vec2, glm::vec2);
-    virtual void selectall();
-    virtual void deselect();
+    virtual void select(glm::vec2, glm::vec2) {}
 
     virtual void restoreSettings();
     virtual void saveSettings();
@@ -73,7 +71,6 @@ public:
 
 protected:
     Mode mode_;
-    class Selection *selection_;
 };
 
 
@@ -120,7 +117,9 @@ public:
     std::pair<Node *, glm::vec2> pick(glm::vec3 point) override;
     Cursor grab (glm::vec2 from, glm::vec2 to, Source *s, std::pair<Node *, glm::vec2> pick) override;
     Cursor over (glm::vec2, Source*, std::pair<Node *, glm::vec2>) override;
+    void select(glm::vec2, glm::vec2) override;
 
+    class Box *selection_box_;
 };
 
 class LayerView : public View