Method renderGraphTooltip

Engine/source/gui/editor/guiParticleGraphCtrl.cpp:941–1005

}

bool GuiParticleGraphCtrl::renderGraphTooltip(Point2I cursorPos, StringTableEntry tooltip)
{
   // Short Circuit.
   if (!mAwake) 
      return false;
   if ( dStrlen( tooltip ) == 0 )
      return false;

   // Need to have root.
   GuiCanvas *root = getRoot();
   if ( !root )
      return false;

   if (!mTooltipProfile)
      setTooltipProfile( mProfile );

   GFont *font = mTooltipProfile->mFont;

   // Fetch Canvas.
   GuiCanvas *pCanvas = getRoot();

   //Vars used:
   //Screensize (for position check)
   //Offset to get position of cursor
   //textBounds for text extent.
   Point2I screensize = pCanvas->getWindowSize();
   Point2I offset = cursorPos; 
   Point2I textBounds;
   S32 textWidth = font->getStrWidth(tooltip);

   //Offset below cursor image
   offset.y -= root->getCursorExtent().y;
   //Create text bounds.
   textBounds.x = textWidth+8;
   textBounds.y = font->getHeight() + 4;

   // Check position/width to make sure all of the tooltip will be rendered
   // 5 is given as a buffer against the edge
   if (screensize.x < offset.x + textBounds.x + 5)
      offset.x = screensize.x - textBounds.x - 5;

   // And ditto for the height
   if(screensize.y < offset.y + textBounds.y + 5)
      offset.y = cursorPos.y - textBounds.y - 5;

   // Set rectangle for the box, and set the clip rectangle.
   RectI rect(offset, textBounds);
   GFX->setClipRect(rect);

   // Fetch Draw Utility.
   GFXDrawUtil* pDrawUtil = GFX->getDrawUtil();

   // Draw Filler bit, then border on top of that
   pDrawUtil->drawRectFill(rect, ColorI(mTooltipProfile->mFillColor.red, mTooltipProfile->mFillColor.green, mTooltipProfile->mFillColor.blue, 200) );
   pDrawUtil->drawRect( rect, mTooltipProfile->mBorderColor );

   // Draw the text centered in the tool tip box
   pDrawUtil->setBitmapModulation( mTooltipProfile->mFontColor );