evdb::Canvas Class Reference

#include <Canvas.h>

Inheritance diagram for evdb::Canvas:

List of all members.

Public Member Functions
	Canvas (TGMainFrame *mf)
virtual	~Canvas ()
virtual void	Draw (const char *opt=0)=0
virtual const char *	PrintTag () const
virtual const char *	Description () const
virtual void	Print (const char *f)
	Print the object to a file.
void	Connect ()
	Make signal/slot connections.
Protected Attributes
TGCompositeFrame *	fFrame
	Graphics frame.
TGLayoutHints *	fLayout
	Layout hints for frame.
TRootEmbeddedCanvas *	fEmbCanvas
	Embedded canvas.
TCanvas *	fCanvas
	The ROOT drawing canvas.
unsigned short	fXsize
	Size of the canvas;.
unsigned short	fYsize
	Size of the canvas;.
float	fAspectRatio
	fYsize/fXsize

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Constructor & Destructor Documentation

Canvas::Canvas (  TGMainFrame *  mf  )

Perform the basic setup for a drawing canvas Definition at line 31 of file Canvas.cxx. References fAspectRatio, fCanvas, fEmbCanvas, fFrame, fLayout, fXsize, and fYsize. { TGDimension sz; // Size of the main frame sz = mf->GetSize(); fXsize = sz.fWidth - 10; // Leave small margin on left and right fYsize = sz.fHeight - 58; // Leave small margin on top and bottom fAspectRatio = (float)fYsize/(float)fXsize; // This frame is apparently for holding the buttons on the top; it's // not used for anything else. fFrame = new TGCompositeFrame(mf, 60, 60, kHorizontalFrame); // Define a layout for placing the canvas within the frame. fLayout = new TGLayoutHints(kLHintsTop | kLHintsLeft | kLHintsExpandX | kLHintsExpandY, 5, 5, 5, 5); // Careful about clashes with root's naming of canvases. Make a name // like "tpcEVDCanvas" using the print tag std::string name(this->PrintTag()); name += "evdb::Canvas"; // Create the embedded canvas within the main ROOT graphics frame. fEmbCanvas = new TRootEmbeddedCanvas(name.c_str(), mf, fXsize, fYsize, kSunkenFrame, 0); mf->AddFrame(fEmbCanvas, fLayout); mf->AddFrame(fFrame); // Extract the graphical Canvas from the embedded canvas. The user // will do most of their drawing in this. fCanvas = fEmbCanvas->GetCanvas(); }

Canvas::~Canvas (   )  [virtual]

Definition at line 76 of file Canvas.cxx. References evdb::IoModule::Instance(). { IoModule::Instance()->Disconnect(0,this,0); delete fEmbCanvas; delete fLayout; delete fFrame; }

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Member Function Documentation

void Canvas::Connect (   )

Make signal/slot connections. Definition at line 66 of file Canvas.cxx. References evdb::Printable::AddToListOfPrintables(), and evdb::IoModule::Instance(). Referenced by evdb::DisplayWindow::DisplayWindow(). { // Make connections for drawing and printing IoModule::Instance()->Connect("NewEvent()", "evdb::Canvas",this,"Draw()"); Printable::AddToListOfPrintables(this->Description(),this); }

virtual const char* evdb::Canvas::Description (   )  const [inline, virtual]

Give a medium length description of what the view holds to be printed. Examples: "Full view of experiment", "3D View", ... Reimplemented from evdb::Printable. Reimplemented in evd::DetectorView, evd::Display3D, evd::XZYZProjectionsView, testCanvas1, and testCanvas2. Definition at line 34 of file Canvas.h. {return "sub-class needs description"; }

virtual void evdb::Canvas::Draw (  const char *  opt = 0  )  [pure virtual]

Implemented in evd::DetectorView, evd::Display3D, evd::XZYZProjectionsView, testCanvas1, testCanvas2, and TestDisplay. Referenced by evdb::DisplayWindow::Draw().

void Canvas::Print (  const char *  f  )  [virtual]

Print the object to a file. Implements evdb::Printable. Definition at line 86 of file Canvas.cxx. References fCanvas. { fCanvas->Print(f); }

virtual const char* evdb::Canvas::PrintTag (   )  const [inline, virtual]

Give a short tag which can be included in filename to ID object printed Keep to ~4 characters Implements evdb::Printable. Reimplemented in evd::DetectorView, evd::Display3D, evd::XZYZProjectionsView, testCanvas1, and testCanvas2. Definition at line 33 of file Canvas.h. {return "sub-class needs print tag"; }

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Member Data Documentation

float evdb::Canvas::fAspectRatio [protected]

fYsize/fXsize Definition at line 47 of file Canvas.h. Referenced by Canvas().

TCanvas* evdb::Canvas::fCanvas [protected]

The ROOT drawing canvas. Definition at line 43 of file Canvas.h. Referenced by Canvas(), and Print().

TRootEmbeddedCanvas* evdb::Canvas::fEmbCanvas [protected]

Embedded canvas. Definition at line 42 of file Canvas.h. Referenced by Canvas().

TGCompositeFrame* evdb::Canvas::fFrame [protected]

Graphics frame. Definition at line 40 of file Canvas.h. Referenced by Canvas().

TGLayoutHints* evdb::Canvas::fLayout [protected]

Layout hints for frame. Definition at line 41 of file Canvas.h. Referenced by Canvas().

unsigned short evdb::Canvas::fXsize [protected]

Size of the canvas;. Definition at line 45 of file Canvas.h. Referenced by Canvas().

unsigned short evdb::Canvas::fYsize [protected]

Size of the canvas;. Definition at line 46 of file Canvas.h. Referenced by Canvas().

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The documentation for this class was generated from the following files:

• Canvas.h
• Canvas.cxx

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