Method Render

Source/Canvas.cpp:59–132

}

void Canvas::Render()
{
   ofPushMatrix();
   ofTranslate(mX, mY);
   ofPushStyle();
   ofSetLineWidth(.5f);
   float w, h;
   GetDimensions(w, h);
   ofNoFill();
   ofRect(0, 0, mWidth, mHeight, 0);
   ofRect(0, 0, GetWidth(), GetHeight(), 0);

   ofPushStyle();
   ofFill();
   const float rowHeight = GetHeight() / GetNumVisibleRows();
   for (int i = 0; i < GetNumVisibleRows(); ++i)
   {
      int row = mRowOffset + i;
      if (row >= 0 && row < mRowColors.size())
         ofSetColorGradient(mRowColors[row], ofColor::lerp(mRowColors[row], ofColor::clear, .1f), ofVec2f(0, i * rowHeight + rowHeight * 0.0f), ofVec2f(0, i * rowHeight + rowHeight));
      ofRect(0, i * rowHeight, GetWidth(), rowHeight, 0);
   }
   ofPopStyle();

   for (int i = 0; i < GetNumCols(); ++i)
   {
      float pos = ofMap(float(i) / GetNumCols(), mViewStart / mLength, mViewEnd / mLength, 0, 1) * GetWidth();
      if (pos >= 0 && pos < GetWidth())
      {
         ofPushStyle();
         if (mMajorColumnInterval != -1 && i % mMajorColumnInterval == 0)
            ofSetColor(255, 255, 255);
         ofLine(pos, 0, pos, GetHeight());
         ofPopStyle();
      }
   }

   for (int i = 0; i < mElements.size(); ++i)
   {
      //ofMap(GetStart() + offset,mCanvas->mStart/mCanvas->GetLength(),mCanvas->mEnd/mCanvas->GetLength(),0,1,clamp)
      bool visibleOnCanvas = mElements[i]->mRow >= mRowOffset && mElements[i]->mRow < mRowOffset + GetNumVisibleRows() &&
                             mElements[i]->GetStart() <= mViewEnd / GetLength() && mElements[i]->GetEnd() >= mViewStart / GetLength();
      if (visibleOnCanvas)
      {
         ofVec2f offset(0, 0);
         if (mClick && mClickedElement != nullptr && mElements[i]->GetHighlighted() && mDragEnd == kHighlightEnd_None)
            offset = (ofVec2f(TheSynth->GetRawMouseX(), TheSynth->GetRawMouseY()) - mClickedElementStartMousePos) / gDrawScale;
         mElements[i]->Draw(offset);
      }

      if (!visibleOnCanvas)
         mElements[i]->DrawOffscreen();
   }

   if (mDragSelecting)
   {
      ofPushStyle();
      ofSetColor(255, 255, 255);