//------------------------------------------------------------------------------
// gui tools classes	      																	--
// (C) Piero Giubilato 2008-2010, Berkeley Lab										   --
//------------------------------------------------------------------------------

//______________________________________________________________________________
// {Trace}
// [File name] "gui_Canvas.cpp"
// [Author] "Piero Giubilato"
// [Version] "0.7"
// [Modified by] "Piero Giubilato"
// [Last revision] "28 Jan 2008"
// [Language] "C++"
// [Compiler] "Visual C++ 8.x 9.x"
// [Member of] "Cool SEAL"
// [Project] "SEAL"
// [Description] "Source for the gui_Canvas class"
// [Key documentation]
// "Visual C++ Reference Help"
// "Root reference guide"
// {Trace}
//______________________________________________________________________________

// Standard component

// Root Component
#include <TSystem.h>
#include <TColor.h>
#include <TCanvas.h>

// Application component
#include "global.h"
#include "gui_Main.h"
#include "gui_Canvas.h"
 
// CINT Preprocessor class import definition
ClassImp(gui_Canvas)

//______________________________________________________________________________
gui_Canvas::gui_Canvas(UInt_t left, UInt_t top, UInt_t width, UInt_t height)
{
   // Default constructor. gui_Canvas provides an interface layer that that
   // integrates a root TRootEmbeddedCanvas.
	// 'left', 'top', 'width', 'height' set the position and size of the button
	dbg_Print("gui_Canvas::gui_Canvas:(default)", DBG_LVL_ZERO);

   // Sets up the canvas
   Init(left, top, width, height);
}

//______________________________________________________________________________
gui_Canvas::~gui_Canvas()
{
   // Default destructor.
   dbg_Print("gui_Canvas::gui_Canvas:()", DBG_LVL_ZERO);

   // Removes the root object from the root graphical server
	Container()->RemoveFrame(canvas);
	canvas->DestroyWindow();
	
	// Deletes the root object
   delete canvas;
}

//______________________________________________________________________________
void gui_Canvas::Init(UInt_t left, UInt_t top, UInt_t width, UInt_t height)
{
   // Creates a layer over a root canvas
   dbg_Print("gui_Canvas::Init:(default)", DBG_LVL_MAKE);
   
   // Initializes the root canvas
	canvas = new TRootEmbeddedCanvas(obj_id_Text().Data(), Container(), width, height);
   
   // Renders the button into the frame and adds it to the window 
   Container()->AddFrame(canvas, new TGLayoutHints(kLHintsNormal, 0, 0, 0, 0));
   MoveResize(left, top, width, height);
}

//______________________________________________________________________________
const TRootEmbeddedCanvas* gui_Canvas::Root() const
{
   // Returns the pointer to the embedded root object
   return canvas;
}

//______________________________________________________________________________
void gui_Canvas::Update() const
{
   // Updates the canvas and the subcanvas
	canvas->GetCanvas()->Draw();	
	canvas->GetCanvas()->Modified();
	canvas->GetCanvas()->Update();
	
	// Returns the pointer to the embedded root object
	gui_Object::Update();
}

//______________________________________________________________________________
void gui_Canvas::MoveResize(UInt_t left, UInt_t top, UInt_t width, UInt_t height)
{
   // Moves and resizes the button
   canvas->MoveResize(left, top, width, height);

   // Stores the new datas
   obj_Left = left;
   obj_Top = top;
   obj_Width = width;
   obj_Height = height;
   
   // Refresh the graphical container
   Update();
}

//______________________________________________________________________________
void gui_Canvas::color_Set(UInt_t foreColor, UInt_t backColor)
{
   // Sets the color for the canvas. As the root canvas uses the root palette
	// to reference colors, it will create the color if not already available.
	canvas->GetCanvas()->SetFillColor(TColor::GetColor(backColor));
	canvas->GetCanvas()->SetLineColor(TColor::GetColor(foreColor));

	// Sets the color
	obj_foreColor = foreColor;
	obj_backColor = backColor;
	
   // Refresh the graphical container
	Update(); 
}