The Canvas class.
A Canvas is an area mapped to a window directly under the control of the display manager. A ROOT session may have several canvases open at any given time.
A Canvas may be subdivided into independent graphical areas: the Pads. A canvas has a default pad which has the name of the canvas itself. An example of a Canvas layout is sketched in the picture below.
This canvas contains two pads named P1 and P2. Both Canvas, P1 and P2 can be moved, grown, shrunk using the normal rules of the Display manager.
Once objects have been drawn in a canvas, they can be edited/moved by pointing directly to them. The cursor shape is changed to suggest the type of action that one can do on this object. Clicking with the right mouse button on an object pops-up a contextmenu with a complete list of actions possible on this object.
A graphical editor may be started from the canvas "View" menu under the menu entry "Toolbar".
An interactive HELP is available by clicking on the HELP button at the top right of the canvas. It gives a short explanation about the canvas' menus.
A canvas may be automatically divided into pads via TPad::Divide
.
At creation time, no matter if in interactive or batch mode, the canvas size defines the size of the canvas window (including the size of the window manager's decoration). To define precisely the graphics area size of a canvas in the interactive mode, the following four lines of code should be used:
and in the batch mode simply do:
If the canvas size this exceed the window size, scroll bars will be added to the canvas This allows to display very large canvases (even bigger than the screen size). The Following example shows how to proceed.
Public Types | |
enum | { kShowEventStatus = BIT(15) , kAutoExec = BIT(16) , kMenuBar = BIT(17) , kShowToolBar = BIT(18) , kShowEditor = BIT(19) , kMoveOpaque = BIT(20) , kResizeOpaque = BIT(21) , kIsGrayscale = BIT(22) , kShowToolTips = BIT(23) } |
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enum | { kFraming = BIT(6) , kHori = BIT(9) , kClipFrame = BIT(10) , kPrintingPS = BIT(11) , kCannotMove = BIT(12) , kClearAfterCR = BIT(14) } |
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enum | { kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 , kBitMask = 0x00ffffff } |
enum | { kSingleKey = BIT(0) , kOverwrite = BIT(1) , kWriteDelete = BIT(2) } |
enum | EDeprecatedStatusBits { kObjInCanvas = BIT(3) } |
enum | EStatusBits { kCanDelete = BIT(0) , kMustCleanup = BIT(3) , kIsReferenced = BIT(4) , kHasUUID = BIT(5) , kCannotPick = BIT(6) , kNoContextMenu = BIT(8) , kInvalidObject = BIT(13) } |
Public Member Functions | |
TCanvas (Bool_t build=kTRUE) | |
Canvas default constructor. | |
TCanvas (const char *name, const char *title, Int_t wtopx, Int_t wtopy, Int_t ww, Int_t wh) | |
Create a new canvas. | |
TCanvas (const char *name, const char *title, Int_t ww, Int_t wh) | |
Create a new canvas at a random position. | |
TCanvas (const char *name, const char *title="", Int_t form=1) | |
Create a new canvas with a predefined size form. | |
TCanvas (const char *name, Int_t ww, Int_t wh, Int_t winid) | |
Create an embedded canvas, i.e. | |
virtual | ~TCanvas () |
Canvas destructor. | |
void | Browse (TBrowser *b) override |
Browse. | |
TVirtualPad * | cd (Int_t subpadnumber=0) override |
Set current canvas & pad. | |
void | Clear (Option_t *option="") override |
Remove all primitives from the canvas. | |
virtual void | Cleared (TVirtualPad *pad) |
Emit pad Cleared signal. | |
void | ClearPadSave () |
void | Close (Option_t *option="") override |
Close canvas. | |
void | Closed () override |
Emit Closed signal. | |
void | Constructor () |
Canvas default constructor. | |
void | Constructor (const char *name, const char *title, Int_t form) |
Create a new canvas with a predefined size form. | |
void | Constructor (const char *name, const char *title, Int_t wtopx, Int_t wtopy, Int_t ww, Int_t wh) |
Create a new canvas. | |
void | Constructor (const char *name, const char *title, Int_t ww, Int_t wh) |
Create a new canvas at a random position. | |
void | Delete (Option_t *="") override |
Delete this object. | |
void | DeleteCanvasPainter () |
assert on IsBatch() == false? | |
void | Destructor () |
Actual canvas destructor. | |
void | DisconnectWidget () |
Used by friend class TCanvasImp. | |
void | Draw (Option_t *option="") override |
Draw a canvas. | |
TObject * | DrawClone (Option_t *option="") const override |
Draw a clone of this canvas A new canvas is created that is a clone of this canvas. | |
virtual TObject * | DrawClonePad () |
Draw a clone of this canvas into the current pad In an interactive session, select the destination/current pad with the middle mouse button, then point to the canvas area to select the canvas context menu item DrawClonePad. | |
virtual void | EditorBar () |
Get editor bar. | |
void | EmbedInto (Int_t winid, Int_t ww, Int_t wh) |
Embedded a canvas into a TRootEmbeddedCanvas. | |
void | EnterLeave (TPad *prevSelPad, TObject *prevSelObj) |
Generate kMouseEnter and kMouseLeave events depending on the previously selected object and the currently selected object. | |
void | FeedbackMode (Bool_t set) |
Turn rubberband feedback mode on or off. | |
void | Flush () |
Flush canvas buffers. | |
void | ForceUpdate () |
Force canvas update. | |
Bool_t | GetAutoExec () const |
Int_t | GetCanvasID () const override |
TCanvasImp * | GetCanvasImp () const override |
TVirtualPadPainter * | GetCanvasPainter () |
Access and (probably) creation of pad painter. | |
virtual void | GetCanvasPar (Int_t &wtopx, Int_t &wtopy, UInt_t &ww, UInt_t &wh) |
TObject * | GetClickSelected () const |
TVirtualPad * | GetClickSelectedPad () const |
TContextMenu * | GetContextMenu () const |
const char * | GetDISPLAY () const |
Int_t | GetDoubleBuffer () const |
Int_t | GetEvent () const override |
Int_t | GetEventX () const override |
Int_t | GetEventY () const override |
Color_t | GetHighLightColor () const override |
TVirtualPad * | GetPadSave () const override |
TObject * | GetSelected () const override |
Option_t * | GetSelectedOpt () const |
TVirtualPad * | GetSelectedPad () const override |
Int_t | GetSelectedX () const |
Int_t | GetSelectedY () const |
Bool_t | GetShowEditor () const |
Bool_t | GetShowEventStatus () const |
Bool_t | GetShowToolBar () const |
Bool_t | GetShowToolTips () const |
UInt_t | GetWh () const override |
UInt_t | GetWindowHeight () const |
Int_t | GetWindowTopX () |
Returns current top x position of window on screen. | |
Int_t | GetWindowTopY () |
Returns current top y position of window on screen. | |
UInt_t | GetWindowWidth () const |
UInt_t | GetWw () const override |
Size_t | GetXsizeReal () const |
Size_t | GetXsizeUser () const |
Size_t | GetYsizeReal () const |
Size_t | GetYsizeUser () const |
virtual void | HandleInput (EEventType button, Int_t x, Int_t y) |
Handle Input Events. | |
Bool_t | HasMenuBar () const |
virtual void | HighlightConnect (const char *slot) |
This is "simplification" for function TCanvas::Connect with Highlighted signal for specific slot. | |
virtual void | Highlighted (TVirtualPad *pad, TObject *obj, Int_t x, Int_t y) |
Emit Highlighted() signal. | |
void | Iconify () |
Iconify canvas. | |
Bool_t | IsBatch () const override |
Bool_t | IsDrawn () |
Bool_t | IsFolder () const override |
Is folder ? | |
Bool_t | IsGrayscale () |
Check whether this canvas is to be drawn in grayscale mode. | |
Bool_t | IsRetained () const override |
Bool_t | IsWeb () const |
Is web canvas. | |
void | ls (Option_t *option="") const override |
List all pads. | |
void | MoveOpaque (Int_t set=1) |
Set option to move objects/pads in a canvas. | |
Bool_t | OpaqueMoving () const override |
Bool_t | OpaqueResizing () const override |
void | Paint (Option_t *option="") override |
Paint canvas. | |
virtual TPad * | Pick (Int_t px, Int_t py, TObject *prevSelObj) |
Prepare for pick, call TPad::Pick() and when selected object is different from previous then emit Picked() signal. | |
TPad * | Pick (Int_t px, Int_t py, TObjLink *&pickobj) override |
Search for an object at pixel position px,py. | |
virtual void | Picked (TPad *selpad, TObject *selected, Int_t event) |
Emit Picked() signal. | |
virtual void | ProcessedEvent (Int_t event, Int_t x, Int_t y, TObject *selected) |
Emit ProcessedEvent() signal. | |
void | RaiseWindow () |
Raise canvas window. | |
void | ResetDrawn () |
virtual void | Resize (Option_t *option="") |
Recompute canvas parameters following a X11 Resize. | |
void | ResizeOpaque (Int_t set=1) |
Set option to resize objects/pads in a canvas. | |
void | SavePrimitive (std::ostream &out, Option_t *option="") override |
Save primitives in this canvas in C++ macro file with GUI. | |
void | SaveSource (const char *filename="", Option_t *option="") |
Save primitives in this canvas as a C++ macro file. | |
virtual void | Selected (TVirtualPad *pad, TObject *obj, Int_t event) |
Emit Selected() signal. | |
void | SetBatch (Bool_t batch=kTRUE) override |
Toggle batch mode. | |
void | SetCanvasImp (TCanvasImp *i) |
void | SetCanvasSize (UInt_t ww, UInt_t wh) override |
Set Width and Height of canvas to ww and wh respectively. | |
void | SetClickSelected (TObject *obj) |
void | SetClickSelectedPad (TPad *pad) |
void | SetCursor (ECursor cursor) override |
Set cursor. | |
void | SetDoubleBuffer (Int_t mode=1) override |
Set Double Buffer On/Off. | |
void | SetFixedAspectRatio (Bool_t fixed=kTRUE) override |
Fix canvas aspect ratio to current value if fixed is true. | |
void | SetGrayscale (Bool_t set=kTRUE) |
Set whether this canvas should be painted in grayscale, and re-paint it if necessary. | |
void | SetHighLightColor (Color_t col) |
void | SetName (const char *name="") override |
Set canvas name. In case name is an empty string, a default name is set. | |
void | SetPadSave (TPad *pad) |
bool | SetRealAspectRatio (const Int_t axis=1) |
Function to resize a canvas so that the plot inside is shown in real aspect ratio. | |
void | SetRetained (Bool_t retained=kTRUE) |
void | SetSelected (TObject *obj) override |
Set selected canvas. | |
void | SetSelectedPad (TPad *pad) |
void | SetSupportGL (Bool_t support) |
void | SetTitle (const char *title="") override |
Set canvas title. | |
void | SetWindowPosition (Int_t x, Int_t y) |
Set canvas window position. | |
void | SetWindowSize (UInt_t ww, UInt_t wh) |
Set canvas window size. | |
void | Show () |
Show canvas. | |
virtual void | Size (Float_t xsizeuser=0, Float_t ysizeuser=0) |
Set the canvas scale in centimeters. | |
virtual void | ToggleAutoExec () |
Toggle pad auto execution of list of TExecs. | |
virtual void | ToggleEditor () |
Toggle editor. | |
virtual void | ToggleEventStatus () |
Toggle event statusbar. | |
virtual void | ToggleToolBar () |
Toggle toolbar. | |
virtual void | ToggleToolTips () |
Toggle tooltip display. | |
void | Update () override |
Update canvas pad buffers. | |
void | UseCurrentStyle () override |
Force a copy of current style for all objects in canvas. | |
Bool_t | UseGL () const |
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TPad () | |
Pad default constructor. | |
TPad (const char *name, const char *title, Double_t xlow, Double_t ylow, Double_t xup, Double_t yup, Color_t color=-1, Short_t bordersize=-1, Short_t bordermode=-2) | |
Pad constructor. | |
virtual | ~TPad () |
Pad destructor. | |
void | AbsCoordinates (Bool_t set) override |
Double_t | AbsPixeltoX (Int_t px) override |
virtual void | AbsPixeltoXY (Int_t xpixel, Int_t ypixel, Double_t &x, Double_t &y) |
Double_t | AbsPixeltoY (Int_t py) override |
void | AddExec (const char *name, const char *command) override |
Add a new TExec object to the list of Execs. | |
virtual void | AutoExec () |
Execute the list of Execs when a pad event occurs. | |
void | Browse (TBrowser *b) override |
Browse pad. | |
TLegend * | BuildLegend (Double_t x1=0.3, Double_t y1=0.21, Double_t x2=0.3, Double_t y2=0.21, const char *title="", Option_t *option="") override |
Build a legend from the graphical objects in the pad. | |
TVirtualPad * | cd (Int_t subpadnumber=0) override |
Set Current pad. | |
void | Clear (Option_t *option="") override |
Delete all pad primitives. | |
Int_t | Clip (Double_t *x, Double_t *y, Double_t xclipl, Double_t yclipb, Double_t xclipr, Double_t yclipt) override |
Clipping routine: Cohen Sutherland algorithm. | |
virtual Int_t | Clip (Float_t *x, Float_t *y, Float_t xclipl, Float_t yclipb, Float_t xclipr, Float_t yclipt) |
Clipping routine: Cohen Sutherland algorithm. | |
virtual Int_t | ClippingCode (Double_t x, Double_t y, Double_t xcl1, Double_t ycl1, Double_t xcl2, Double_t ycl2) |
Compute the endpoint codes for TPad::Clip. | |
virtual Int_t | ClipPolygon (Int_t n, Double_t *x, Double_t *y, Int_t nn, Double_t *xc, Double_t *yc, Double_t xclipl, Double_t yclipb, Double_t xclipr, Double_t yclipt) |
Clip polygon using the Sutherland-Hodgman algorithm. | |
void | Close (Option_t *option="") override |
Delete all primitives in pad and pad itself. | |
void | CloseToolTip (TObject *tip) override |
Hide tool tip. | |
void | CopyPixmap () override |
Copy the pixmap of the pad to the canvas. | |
void | CopyPixmaps () override |
Copy the sub-pixmaps of the pad to the canvas. | |
TObject * | CreateToolTip (const TBox *b, const char *text, Long_t delayms) override |
Create a tool tip and return its pointer. | |
void | DeleteExec (const char *name) override |
Remove TExec name from the list of Execs. | |
void | DeleteToolTip (TObject *tip) override |
Delete tool tip object. | |
void | Divide (Int_t nx=1, Int_t ny=1, Float_t xmargin=0.01, Float_t ymargin=0.01, Int_t color=0) override |
Automatic pad generation by division. | |
virtual void | DivideSquare (Int_t n, Float_t xmargin=0.01, Float_t ymargin=0.01, Int_t color=0) |
"n" is the total number of sub-pads. | |
void | Draw (Option_t *option="") override |
Draw Pad in Current pad (re-parent pad if necessary). | |
void | DrawClassObject (const TObject *obj, Option_t *option="") override |
Draw class inheritance tree of the class to which obj belongs. | |
void | DrawCollideGrid () |
This method draws the collide grid on top of the canvas. | |
virtual void | DrawCrosshair () |
Function called to draw a crosshair in the canvas. | |
TH1F * | DrawFrame (Double_t xmin, Double_t ymin, Double_t xmax, Double_t ymax, const char *title="") override |
Draw an empty pad frame with X and Y axis. | |
virtual void | EventPave () |
void | ExecuteEventAxis (Int_t event, Int_t px, Int_t py, TAxis *axis) override |
Execute action corresponding to one event for a TAxis object (called by TAxis::ExecuteEvent.) This member function is called when an axis is clicked with the locator. | |
TObject * | FindObject (const char *name) const override |
Search if object named name is inside this pad or in pads inside this pad. | |
TObject * | FindObject (const TObject *obj) const override |
Search if obj is in pad or in pads inside this pad. | |
Double_t | GetAbsHNDC () const override |
Double_t | GetAbsWNDC () const override |
Double_t | GetAbsXlowNDC () const override |
Double_t | GetAbsYlowNDC () const override |
Double_t | GetAspectRatio () const override |
Rectangle_t | GetBBox () override |
Return the bounding Box of the Pad. | |
TPoint | GetBBoxCenter () override |
Return the center of the Pad as TPoint in pixels. | |
Short_t | GetBorderMode () const override |
Short_t | GetBorderSize () const override |
TCanvas * | GetCanvas () const override |
Int_t | GetCanvasID () const override |
Get canvas identifier. | |
TCanvasImp * | GetCanvasImp () const override |
Get canvas implementation pointer if any. | |
Int_t | GetCrosshair () const |
Return the crosshair type (from the mother canvas) crosshair type = 0 means no crosshair. | |
Int_t | GetEvent () const override |
Get Event. | |
Int_t | GetEventX () const override |
Get X event. | |
Int_t | GetEventY () const override |
Get Y event. | |
TFrame * | GetFrame () override |
Get frame. | |
Int_t | GetGLDevice () override |
Get GL device. | |
Bool_t | GetGridx () const override |
Bool_t | GetGridy () const override |
Color_t | GetHighLightColor () const override |
Get highlight color. | |
Double_t | GetHNDC () const override |
Get height of pad along Y in Normalized Coordinates (NDC) | |
TList * | GetListOfExecs () const override |
TList * | GetListOfPrimitives () const override |
Int_t | GetLogx () const override |
Int_t | GetLogy () const override |
Int_t | GetLogz () const override |
TVirtualPad * | GetMother () const override |
const char * | GetName () const override |
Returns name of object. | |
Int_t | GetNumber () const override |
TVirtualPad * | GetPad (Int_t subpadnumber) const override |
Get a pointer to subpadnumber of this pad. | |
Int_t | GetPadPaint () const override |
void | GetPadPar (Double_t &xlow, Double_t &ylow, Double_t &xup, Double_t &yup) override |
Return lower and upper bounds of the pad in NDC coordinates. | |
TObject * | GetPadPointer () const override |
TVirtualPad * | GetPadSave () const override |
Get save pad. | |
TVirtualPadPainter * | GetPainter () override |
Get pad painter from TCanvas. | |
Double_t | GetPhi () const override |
Int_t | GetPixmapID () const override |
TObject * | GetPrimitive (const char *name) const override |
Get primitive. | |
void | GetRange (Double_t &x1, Double_t &y1, Double_t &x2, Double_t &y2) override |
Return pad world coordinates range. | |
void | GetRangeAxis (Double_t &xmin, Double_t &ymin, Double_t &xmax, Double_t &ymax) override |
Return pad axis coordinates range. | |
TObject * | GetSelected () const override |
Get selected. | |
TVirtualPad * | GetSelectedPad () const override |
Get selected pad. | |
Double_t | GetTheta () const override |
Int_t | GetTickx () const override |
Int_t | GetTicky () const override |
const char * | GetTitle () const override |
Returns title of object. | |
Double_t | GetUxmax () const override |
Returns the maximum x-coordinate value visible on the pad. If log axis the returned value is in decades. | |
Double_t | GetUxmin () const override |
Returns the minimum x-coordinate value visible on the pad. If log axis the returned value is in decades. | |
Double_t | GetUymax () const override |
Returns the maximum y-coordinate value visible on the pad. If log axis the returned value is in decades. | |
Double_t | GetUymin () const override |
Returns the minimum y-coordinate value visible on the pad. If log axis the returned value is in decades. | |
TView * | GetView () const override |
TObject * | GetView3D () const override |
TVirtualViewer3D * | GetViewer3D (Option_t *type="") override |
Create/obtain handle to 3D viewer. | |
TVirtualPad * | GetVirtCanvas () const override |
Get virtual canvas. | |
UInt_t | GetWh () const override |
Get Wh. | |
Double_t | GetWNDC () const override |
Get width of pad along X in Normalized Coordinates (NDC) | |
UInt_t | GetWw () const override |
Get Ww. | |
Double_t | GetX1 () const override |
Double_t | GetX2 () const override |
Double_t | GetXlowNDC () const override |
Double_t | GetY1 () const override |
Double_t | GetY2 () const override |
Double_t | GetYlowNDC () const override |
Bool_t | HasCrosshair () const override |
Return kTRUE if the crosshair has been activated (via SetCrosshair). | |
Bool_t | HasFixedAspectRatio () const override |
ULong_t | Hash () const override |
Return hash value for this object. | |
Bool_t | HasViewer3D () const override |
void | HighLight (Color_t col=kRed, Bool_t set=kTRUE) override |
Highlight pad. | |
Int_t | IncrementPaletteColor (Int_t i, TString opt) override |
Increment (i==1) or set (i>1) the number of autocolor in the pad. | |
Bool_t | IsBatch () const override |
Is pad in batch mode ? | |
virtual Bool_t | IsEditable () const override |
Bool_t | IsFolder () const override |
Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). | |
Bool_t | IsModified () const override |
Bool_t | IsRetained () const override |
Is pad retained ? | |
Bool_t | IsVertical () const override |
void | ls (Option_t *option="") const override |
List all primitives in pad. | |
void | Modified (Bool_t flag=1) override |
Int_t | NextPaletteColor () override |
Get the next autocolor in the pad. | |
Bool_t | OpaqueMoving () const override |
Is pad moving in opaque mode ? | |
Bool_t | OpaqueResizing () const override |
Is pad resizing in opaque mode ? | |
Double_t | PadtoX (Double_t x) const override |
Convert x from pad to X. | |
Double_t | PadtoY (Double_t y) const override |
Convert y from pad to Y. | |
void | Paint (Option_t *option="") override |
Paint all primitives in pad. | |
void | PaintBox (Double_t x1, Double_t y1, Double_t x2, Double_t y2, Option_t *option="") override |
Paint box in CurrentPad World coordinates. | |
void | PaintFillArea (Int_t n, Double_t *x, Double_t *y, Option_t *option="") override |
Paint fill area in CurrentPad World coordinates. | |
void | PaintFillArea (Int_t n, Float_t *x, Float_t *y, Option_t *option="") override |
void | PaintFillAreaHatches (Int_t n, Double_t *x, Double_t *y, Int_t FillStyle) |
This function paints hatched fill area according to the FillStyle value The convention for the Hatch is the following: | |
void | PaintFillAreaNDC (Int_t n, Double_t *x, Double_t *y, Option_t *option="") override |
Paint fill area in CurrentPad NDC coordinates. | |
void | PaintHatches (Double_t dy, Double_t angle, Int_t nn, Double_t *xx, Double_t *yy) |
This routine draw hatches inclined with the angle "angle" and spaced of "dy" in normalized device coordinates in the surface defined by n,xx,yy. | |
void | PaintLine (Double_t x1, Double_t y1, Double_t x2, Double_t y2) override |
Paint line in CurrentPad World coordinates. | |
void | PaintLine3D (Double_t *p1, Double_t *p2) override |
Paint 3-D line in the CurrentPad. | |
void | PaintLine3D (Float_t *p1, Float_t *p2) override |
Paint 3-D line in the CurrentPad. | |
void | PaintLineNDC (Double_t u1, Double_t v1, Double_t u2, Double_t v2) override |
Paint line in normalized coordinates. | |
void | PaintModified () override |
Traverse pad hierarchy and (re)paint only modified pads. | |
void | PaintPadFrame (Double_t xmin, Double_t ymin, Double_t xmax, Double_t ymax) override |
Paint histogram/graph frame. | |
void | PaintPolyLine (Int_t n, Double_t *x, Double_t *y, Option_t *option="") override |
Paint polyline in CurrentPad World coordinates. | |
void | PaintPolyLine (Int_t n, Float_t *x, Float_t *y, Option_t *option="") override |
Paint polyline in CurrentPad World coordinates. | |
void | PaintPolyLine3D (Int_t n, Double_t *p) override |
Paint 3-D polyline in the CurrentPad. | |
void | PaintPolyLineNDC (Int_t n, Double_t *x, Double_t *y, Option_t *option="") override |
Paint polyline in CurrentPad NDC coordinates. | |
void | PaintPolyMarker (Int_t n, Double_t *x, Double_t *y, Option_t *option="") override |
Paint polymarker in CurrentPad World coordinates. | |
void | PaintPolyMarker (Int_t n, Float_t *x, Float_t *y, Option_t *option="") override |
Paint polymarker in CurrentPad World coordinates. | |
void | PaintText (Double_t x, Double_t y, const char *text) override |
Paint text in CurrentPad World coordinates. | |
void | PaintText (Double_t x, Double_t y, const wchar_t *text) override |
Paint text in CurrentPad World coordinates. | |
void | PaintTextNDC (Double_t u, Double_t v, const char *text) override |
Paint text in CurrentPad NDC coordinates. | |
void | PaintTextNDC (Double_t u, Double_t v, const wchar_t *text) override |
Paint text in CurrentPad NDC coordinates. | |
Double_t | PixeltoX (Int_t px) override |
virtual void | PixeltoXY (Int_t xpixel, Int_t ypixel, Double_t &x, Double_t &y) |
Double_t | PixeltoY (Int_t py) override |
Bool_t | PlaceBox (TObject *o, Double_t w, Double_t h, Double_t &xl, Double_t &yb) override |
Place a box in NDC space. | |
void | Pop () override |
Pop pad to the top of the stack. | |
void | Print (const char *filename, Option_t *option) override |
Save Canvas contents in a file in one of various formats. | |
void | Print (const char *filename="") const override |
Save Pad contents in a file in one of various formats. | |
void | Range (Double_t x1, Double_t y1, Double_t x2, Double_t y2) override |
Set world coordinate system for the pad. | |
void | RangeAxis (Double_t xmin, Double_t ymin, Double_t xmax, Double_t ymax) override |
Set axis coordinate system for the pad. | |
virtual void | RangeAxisChanged () |
virtual void | RangeChanged () |
virtual void | RecordLatex (const TObject *obj) |
Emit RecordLatex() signal. | |
virtual void | RecordPave (const TObject *obj) |
Emit RecordPave() signal. | |
void | RecursiveRemove (TObject *obj) override |
Recursively remove object from a pad and its sub-pads. | |
void | RedrawAxis (Option_t *option="") override |
Redraw the frame axis. | |
void | ReleaseViewer3D (Option_t *type="") override |
Release current (external) viewer. | |
void | ResetToolTip (TObject *tip) override |
Reset tool tip, i.e. | |
void | ResetView3D (TObject *view=nullptr) override |
virtual void | Resized () |
void | ResizePad (Option_t *option="") override |
Compute pad conversion coefficients. | |
void | SaveAs (const char *filename="", Option_t *option="") const override |
Save Pad contents in a file in one of various formats. | |
void | SetAttFillPS (Color_t color, Style_t style) override |
Set postscript fill area attributes. | |
void | SetAttLinePS (Color_t color, Style_t style, Width_t lwidth) override |
Set postscript line attributes. | |
void | SetAttMarkerPS (Color_t color, Style_t style, Size_t msize) override |
Set postscript marker attributes. | |
void | SetAttTextPS (Int_t align, Float_t angle, Color_t color, Style_t font, Float_t tsize) override |
Set postscript text attributes. | |
void | SetBBoxCenter (const TPoint &p) override |
Set center of the Pad. | |
void | SetBBoxCenterX (const Int_t x) override |
Set X coordinate of the center of the Pad. | |
void | SetBBoxCenterY (const Int_t y) override |
Set Y coordinate of the center of the Pad. | |
void | SetBBoxX1 (const Int_t x) override |
Set lefthandside of BoundingBox to a value (resize in x direction on left) | |
void | SetBBoxX2 (const Int_t x) override |
Set right hand side of BoundingBox to a value (resize in x direction on right) | |
void | SetBBoxY1 (const Int_t y) override |
Set top of BoundingBox to a value (resize in y direction on top) | |
void | SetBBoxY2 (const Int_t y) override |
Set bottom of BoundingBox to a value (resize in y direction on bottom) | |
void | SetBorderMode (Short_t bordermode) override |
void | SetBorderSize (Short_t bordersize) override |
void | SetCanvas (TCanvas *c) override |
void | SetCanvasSize (UInt_t ww, UInt_t wh) override |
Set canvas size. | |
void | SetCopyGLDevice (Bool_t copy) override |
void | SetCrosshair (Int_t crhair=1) override |
Set crosshair active/inactive. | |
void | SetCursor (ECursor cursor) override |
Set cursor type. | |
void | SetDoubleBuffer (Int_t mode=1) override |
Set double buffer mode ON or OFF. | |
void | SetDrawOption (Option_t *option="") override |
Set drawing option for object. | |
void | SetEditable (Bool_t mode=kTRUE) override |
Set pad editable yes/no If a pad is not editable: | |
void | SetFillStyle (Style_t fstyle) override |
Override TAttFill::FillStyle for TPad because we want to handle style=0 as style 4000. | |
void | SetFixedAspectRatio (Bool_t fixed=kTRUE) override |
Fix pad aspect ratio to current value if fixed is true. | |
virtual void | SetGLDevice (Int_t dev) |
void | SetGrid (Int_t valuex=1, Int_t valuey=1) override |
void | SetGridx (Int_t value=1) override |
void | SetGridy (Int_t value=1) override |
void | SetLogx (Int_t value=1) override |
Set Lin/Log scale for X. | |
void | SetLogy (Int_t value=1) override |
Set Lin/Log scale for Y. | |
void | SetLogz (Int_t value=1) override |
Set Lin/Log scale for Z. | |
void | SetName (const char *name) override |
virtual void | SetNumber (Int_t number) |
void | SetPad (const char *name, const char *title, Double_t xlow, Double_t ylow, Double_t xup, Double_t yup, Color_t color=35, Short_t bordersize=5, Short_t bordermode=-1) override |
Set all pad parameters. | |
void | SetPad (Double_t xlow, Double_t ylow, Double_t xup, Double_t yup) override |
Set canvas range for pad and resize the pad. | |
void | SetPhi (Double_t phi=30) override |
void | SetSelected (TObject *obj) override |
Set selected. | |
void | SetTheta (Double_t theta=30) override |
void | SetTicks (Int_t valuex=1, Int_t valuey=1) override |
void | SetTickx (Int_t value=1) override |
void | SetTicky (Int_t value=1) override |
void | SetTitle (const char *title="") override |
void | SetToolTipText (const char *text, Long_t delayms=1000) override |
Set tool tip text associated with this pad. | |
void | SetVertical (Bool_t vert=kTRUE) override |
Set pad vertical (default) or horizontal. | |
void | SetView (TView *view=nullptr) override |
Set the current TView. Delete previous view if view=0. | |
void | SetViewer3D (TVirtualViewer3D *viewer3d) override |
void | ShowGuidelines (TObject *object, const Int_t event, const char mode='i', const bool cling=true) override |
Shows lines to indicate if a TAttBBox2D object is aligned to the center or to another object, shows distance arrows if two objects on screen have the same distance to another object Call from primitive in Execute Event, in ButtonMotion after the new coordinates have been set, to 'stick' once when button is up to delete lines. | |
virtual void | StartEditing () |
void | Update () override |
Update pad. | |
void | UseCurrentStyle () override |
Force a copy of current style for all objects in pad. | |
Int_t | UtoAbsPixel (Double_t u) const override |
Int_t | UtoPixel (Double_t u) const override |
Int_t | VtoAbsPixel (Double_t v) const override |
Int_t | VtoPixel (Double_t v) const override |
TObject * | WaitPrimitive (const char *pname="", const char *emode="") override |
Loop and sleep until a primitive with name=pname is found in the pad. | |
virtual void | x3d (Option_t *type="") |
Deprecated: use TPad::GetViewer3D() instead. | |
Int_t | XtoAbsPixel (Double_t x) const override |
Double_t | XtoPad (Double_t x) const override |
Convert x from X to pad. | |
Int_t | XtoPixel (Double_t x) const override |
virtual void | XYtoAbsPixel (Double_t x, Double_t y, Int_t &xpixel, Int_t &ypixel) const |
virtual void | XYtoPixel (Double_t x, Double_t y, Int_t &xpixel, Int_t &ypixel) const |
Int_t | YtoAbsPixel (Double_t y) const override |
Double_t | YtoPad (Double_t y) const override |
Convert y from Y to pad. | |
Int_t | YtoPixel (Double_t y) const override |
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TVirtualPad () | |
VirtualPad default constructor. | |
TVirtualPad (const char *name, const char *title, Double_t xlow, Double_t ylow, Double_t xup, Double_t yup, Color_t color=19, Short_t bordersize=4, Short_t bordermode=1) | |
VirtualPad constructor. | |
virtual | ~TVirtualPad () |
VirtualPad destructor. | |
Bool_t | IsBeingResized () const |
virtual Bool_t | PadInHighlightMode () const |
Should always return false, unless you can highlight selected object in pad. | |
virtual Bool_t | PadInSelectionMode () const |
Should always return false unless you have non-standard picking. | |
virtual void | PopTopLevelSelectable () |
Does nothing, unless you implement your own picking. | |
virtual void | PushSelectableObject (TObject *obj) |
Does nothing, unless you implement your own picking. | |
virtual void | PushTopLevelSelectable (TObject *top) |
Does nothing, unless you implement your own picking. | |
virtual void | UnZoomed () |
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TObject () | |
TObject constructor. | |
TObject (const TObject &object) | |
TObject copy ctor. | |
virtual | ~TObject () |
TObject destructor. | |
void | AbstractMethod (const char *method) const |
Use this method to implement an "abstract" method that you don't want to leave purely abstract. | |
virtual void | AppendPad (Option_t *option="") |
Append graphics object to current pad. | |
ULong_t | CheckedHash () |
Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object. | |
virtual const char * | ClassName () const |
Returns name of class to which the object belongs. | |
virtual TObject * | Clone (const char *newname="") const |
Make a clone of an object using the Streamer facility. | |
virtual Int_t | Compare (const TObject *obj) const |
Compare abstract method. | |
virtual void | Copy (TObject &object) const |
Copy this to obj. | |
virtual void | DrawClass () const |
Draw class inheritance tree of the class to which this object belongs. | |
virtual void | Dump () const |
Dump contents of object on stdout. | |
virtual void | Error (const char *method, const char *msgfmt,...) const |
Issue error message. | |
virtual void | Execute (const char *method, const char *params, Int_t *error=0) |
Execute method on this object with the given parameter string, e.g. | |
virtual void | Execute (TMethod *method, TObjArray *params, Int_t *error=0) |
Execute method on this object with parameters stored in the TObjArray. | |
virtual void | Fatal (const char *method, const char *msgfmt,...) const |
Issue fatal error message. | |
virtual Option_t * | GetDrawOption () const |
Get option used by the graphics system to draw this object. | |
virtual const char * | GetIconName () const |
Returns mime type name of object. | |
virtual char * | GetObjectInfo (Int_t px, Int_t py) const |
Returns string containing info about the object at position (px,py). | |
virtual Option_t * | GetOption () const |
virtual UInt_t | GetUniqueID () const |
Return the unique object id. | |
virtual Bool_t | HandleTimer (TTimer *timer) |
Execute action in response of a timer timing out. | |
Bool_t | HasInconsistentHash () const |
Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e. | |
virtual void | Info (const char *method, const char *msgfmt,...) const |
Issue info message. | |
virtual Bool_t | InheritsFrom (const char *classname) const |
Returns kTRUE if object inherits from class "classname". | |
virtual Bool_t | InheritsFrom (const TClass *cl) const |
Returns kTRUE if object inherits from TClass cl. | |
virtual void | Inspect () const |
Dump contents of this object in a graphics canvas. | |
void | InvertBit (UInt_t f) |
virtual Bool_t | IsEqual (const TObject *obj) const |
Default equal comparison (objects are equal if they have the same address in memory). | |
R__ALWAYS_INLINE Bool_t | IsOnHeap () const |
virtual Bool_t | IsSortable () const |
R__ALWAYS_INLINE Bool_t | IsZombie () const |
void | MayNotUse (const char *method) const |
Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). | |
virtual Bool_t | Notify () |
This method must be overridden to handle object notification. | |
void | Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const |
Use this method to declare a method obsolete. | |
void | operator delete (void *ptr) |
Operator delete. | |
void | operator delete[] (void *ptr) |
Operator delete []. | |
void * | operator new (size_t sz) |
void * | operator new (size_t sz, void *vp) |
void * | operator new[] (size_t sz) |
void * | operator new[] (size_t sz, void *vp) |
TObject & | operator= (const TObject &rhs) |
TObject assignment operator. | |
virtual Int_t | Read (const char *name) |
Read contents of object with specified name from the current directory. | |
void | ResetBit (UInt_t f) |
void | SetBit (UInt_t f) |
void | SetBit (UInt_t f, Bool_t set) |
Set or unset the user status bits as specified in f. | |
virtual void | SetUniqueID (UInt_t uid) |
Set the unique object id. | |
virtual void | SysError (const char *method, const char *msgfmt,...) const |
Issue system error message. | |
R__ALWAYS_INLINE Bool_t | TestBit (UInt_t f) const |
Int_t | TestBits (UInt_t f) const |
virtual void | Warning (const char *method, const char *msgfmt,...) const |
Issue warning message. | |
virtual Int_t | Write (const char *name=0, Int_t option=0, Int_t bufsize=0) |
Write this object to the current directory. | |
virtual Int_t | Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const |
Write this object to the current directory. | |
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TAttLine () | |
AttLine default constructor. | |
TAttLine (Color_t lcolor, Style_t lstyle, Width_t lwidth) | |
AttLine normal constructor. | |
virtual | ~TAttLine () |
AttLine destructor. | |
void | Copy (TAttLine &attline) const |
Copy this line attributes to a new TAttLine. | |
Int_t | DistancetoLine (Int_t px, Int_t py, Double_t xp1, Double_t yp1, Double_t xp2, Double_t yp2) |
Compute distance from point px,py to a line. | |
virtual Color_t | GetLineColor () const |
Return the line color. | |
virtual Style_t | GetLineStyle () const |
Return the line style. | |
virtual Width_t | GetLineWidth () const |
Return the line width. | |
virtual void | Modify () |
Change current line attributes if necessary. | |
virtual void | ResetAttLine (Option_t *option="") |
Reset this line attributes to default values. | |
virtual void | SaveLineAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1, Int_t widdef=1) |
Save line attributes as C++ statement(s) on output stream out. | |
virtual void | SetLineAttributes () |
Invoke the DialogCanvas Line attributes. | |
virtual void | SetLineColor (Color_t lcolor) |
Set the line color. | |
virtual void | SetLineColorAlpha (Color_t lcolor, Float_t lalpha) |
Set a transparent line color. | |
virtual void | SetLineStyle (Style_t lstyle) |
Set the line style. | |
virtual void | SetLineWidth (Width_t lwidth) |
Set the line width. | |
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TAttFill () | |
AttFill default constructor. | |
TAttFill (Color_t fcolor, Style_t fstyle) | |
AttFill normal constructor. | |
virtual | ~TAttFill () |
AttFill destructor. | |
void | Copy (TAttFill &attfill) const |
Copy this fill attributes to a new TAttFill. | |
virtual Color_t | GetFillColor () const |
Return the fill area color. | |
virtual Style_t | GetFillStyle () const |
Return the fill area style. | |
virtual Bool_t | IsTransparent () const |
virtual void | Modify () |
Change current fill area attributes if necessary. | |
virtual void | ResetAttFill (Option_t *option="") |
Reset this fill attributes to default values. | |
virtual void | SaveFillAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1001) |
Save fill attributes as C++ statement(s) on output stream out. | |
virtual void | SetFillAttributes () |
Invoke the DialogCanvas Fill attributes. | |
virtual void | SetFillColor (Color_t fcolor) |
Set the fill area color. | |
virtual void | SetFillColorAlpha (Color_t fcolor, Float_t falpha) |
Set a transparent fill color. | |
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TAttPad () | |
Constructor. | |
virtual | ~TAttPad () |
Destructor. | |
virtual void | Copy (TAttPad &attpad) const |
copy function | |
Float_t | GetAfile () const |
Float_t | GetAstat () const |
Float_t | GetBottomMargin () const |
Int_t | GetFrameBorderMode () const |
Width_t | GetFrameBorderSize () const |
Color_t | GetFrameFillColor () const |
Style_t | GetFrameFillStyle () const |
Color_t | GetFrameLineColor () const |
Style_t | GetFrameLineStyle () const |
Width_t | GetFrameLineWidth () const |
Float_t | GetLeftMargin () const |
Float_t | GetRightMargin () const |
Float_t | GetTopMargin () const |
Float_t | GetXfile () const |
Float_t | GetXstat () const |
Float_t | GetYfile () const |
Float_t | GetYstat () const |
virtual void | ResetAttPad (Option_t *option="") |
Reset pad attributes. | |
virtual void | SetAfile (Float_t afile) |
virtual void | SetAstat (Float_t astat) |
virtual void | SetBottomMargin (Float_t bottommargin) |
Set Pad bottom margin in fraction of the pad height. | |
void | SetFrameBorderMode (Int_t mode=1) |
void | SetFrameBorderSize (Width_t size=1) |
void | SetFrameFillColor (Color_t color=1) |
void | SetFrameFillStyle (Style_t styl=0) |
void | SetFrameLineColor (Color_t color=1) |
void | SetFrameLineStyle (Style_t styl=0) |
void | SetFrameLineWidth (Width_t width=1) |
virtual void | SetLeftMargin (Float_t leftmargin) |
Set Pad left margin in fraction of the pad width. | |
virtual void | SetMargin (Float_t left, Float_t right, Float_t bottom, Float_t top) |
Set all margins. | |
virtual void | SetRightMargin (Float_t rightmargin) |
Set Pad right margin in fraction of the pad width. | |
virtual void | SetTopMargin (Float_t topmargin) |
Set Pad top margin in fraction of the pad height. | |
virtual void | SetXfile (Float_t xfile) |
virtual void | SetXstat (Float_t xstat) |
virtual void | SetYfile (Float_t yfile) |
virtual void | SetYstat (Float_t ystat) |
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TQObject () | |
TQObject Constructor. | |
virtual | ~TQObject () |
TQObject Destructor. | |
Bool_t | AreSignalsBlocked () const |
Bool_t | BlockSignals (Bool_t b) |
virtual void | ChangedBy (const char *method) |
void | CollectClassSignalLists (TList &list, TClass *cls) |
Collect class signal lists from class cls and all its base-classes. | |
Bool_t | Connect (const char *signal, const char *receiver_class, void *receiver, const char *slot) |
Non-static method is used to connect from the signal of this object to the receiver slot. | |
virtual void | Connected (const char *) |
virtual void | Destroyed () |
Bool_t | Disconnect (const char *signal=0, void *receiver=0, const char *slot=0) |
Disconnects signal of this object from slot of receiver. | |
virtual void | Disconnected (const char *) |
void | Emit (const char *signal) |
Activate signal without args. | |
template<typename T > | |
void | Emit (const char *signal, const T &arg) |
Activate signal with single parameter. | |
template<typename... T> | |
void | EmitVA (const char *signal_name, Int_t, const T &... params) |
Emit a signal with a varying number of arguments. | |
TList * | GetListOfClassSignals () const |
Returns pointer to list of signals of this class. | |
TList * | GetListOfConnections () const |
TList * | GetListOfSignals () const |
virtual Bool_t | HasConnection (const char *signal_name) const |
Return true if there is any object connected to this signal. | |
virtual void | HighPriority (const char *signal_name, const char *slot_name=0) |
virtual void | LowPriority (const char *signal_name, const char *slot_name=0) |
virtual void | Message (const char *msg) |
virtual Int_t | NumberOfConnections () const |
Return number of connections for this object. | |
virtual Int_t | NumberOfSignals () const |
Return number of signals for this object. | |
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virtual | ~TAttBBox2D () |
Static Public Member Functions | |
static TCanvas * | MakeDefCanvas () |
Static function to build a default canvas. | |
static void | SetFolder (Bool_t isfolder=kTRUE) |
If isfolder=kTRUE, the canvas can be browsed like a folder by default a canvas is not browsable. | |
static Bool_t | SupportAlpha () |
Static function returning "true" if transparency is supported. | |
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static void | DrawColorTable () |
Static function to Display Color Table in a pad. | |
static Int_t | GetMaxPickDistance () |
Static function (see also TPad::SetMaxPickDistance) | |
static void | SetMaxPickDistance (Int_t maxPick=5) |
static function to set the maximum Pick Distance fgMaxPickDistance This parameter is used in TPad::Pick to select an object if its DistancetoPrimitive returns a value < fgMaxPickDistance The default value is 5 pixels. | |
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static TVirtualPad *& | Pad () |
Return the current pad for the current thread. | |
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static Long_t | GetDtorOnly () |
Return destructor only flag. | |
static Bool_t | GetObjectStat () |
Get status of object stat flag. | |
static void | SetDtorOnly (void *obj) |
Set destructor only flag. | |
static void | SetObjectStat (Bool_t stat) |
Turn on/off tracking of objects in the TObjectTable. | |
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static Bool_t | AreAllSignalsBlocked () |
Returns true if all signals are blocked. | |
static Bool_t | BlockAllSignals (Bool_t b) |
Block or unblock all signals. Returns the previous block status. | |
static Bool_t | Connect (const char *sender_class, const char *signal, const char *receiver_class, void *receiver, const char *slot) |
This method allows to make a connection from any object of the same class to a single slot. | |
static Bool_t | Connect (TQObject *sender, const char *signal, const char *receiver_class, void *receiver, const char *slot) |
Create connection between sender and receiver. | |
static Bool_t | Disconnect (const char *class_name, const char *signal, void *receiver=0, const char *slot=0) |
Disconnects "class signal". | |
static Bool_t | Disconnect (TQObject *sender, const char *signal=0, void *receiver=0, const char *slot=0) |
Disconnects signal in object sender from slot_method in object receiver. | |
Protected Member Functions | |
void | ExecuteEvent (Int_t event, Int_t px, Int_t py) override |
Execute action corresponding to one event. | |
void | Init () |
Initialize the TCanvas members. Called by all constructors. | |
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void | DestroyExternalViewer3D () |
Int_t | DistancetoPrimitive (Int_t px, Int_t py) override |
Compute distance from point px,py to a box. | |
void | ExecuteEvent (Int_t event, Int_t px, Int_t py) override |
Execute action corresponding to one event. | |
virtual void | HideToolTip (Int_t event) |
Hide tool tip depending on the event type. | |
void | PaintBorder (Color_t color, Bool_t tops) |
Paint the pad border. | |
void | PaintBorderPS (Double_t xl, Double_t yl, Double_t xt, Double_t yt, Int_t bmode, Int_t bsize, Int_t dark, Int_t light) override |
Paint a frame border with Postscript. | |
void | PaintDate () |
Paint the current date and time if the option date is on. | |
void | SavePrimitive (std::ostream &out, Option_t *option="") override |
Save primitives in this pad on the C++ source file out. | |
void | SetBatch (Bool_t batch=kTRUE) override |
Set pad in batch mode. | |
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void * | GetSender () override |
true when resizing the pad | |
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virtual void | DoError (int level, const char *location, const char *fmt, va_list va) const |
Interface to ErrorHandler (protected). | |
void | MakeZombie () |
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virtual const char * | GetSenderClassName () const |
Protected Attributes | |
Bool_t | fBatch |
! True when in batchmode | |
Int_t | fCanvasID |
! Canvas identifier | |
TCanvasImp * | fCanvasImp |
! Window system specific canvas implementation | |
TAttCanvas | fCatt |
Canvas attributes. | |
UInt_t | fCh |
Height of the canvas along Y (pixels) | |
TObject * | fClickSelected |
! Currently click-selected object | |
TPad * | fClickSelectedPad |
! Pad containing currently click-selected object | |
TContextMenu * | fContextMenu |
! Context menu pointer | |
UInt_t | fCw |
Width of the canvas along X (pixels) | |
TString | fDISPLAY |
Name of destination screen. | |
Int_t | fDoubleBuffer |
Double buffer flag (0=off, 1=on) | |
Bool_t | fDrawn |
! Set to True when the Draw method is called | |
Int_t | fEvent |
! Type of current or last handled event | |
Int_t | fEventX |
! Last X mouse position in canvas | |
Int_t | fEventY |
! Last Y mouse position in canvas | |
Color_t | fHighLightColor |
Highlight color of active pad. | |
TPad * | fPadSave |
! Pointer to saved pad in HandleInput | |
TVirtualPadPainter * | fPainter |
! Canvas (pad) painter. | |
Bool_t | fRetained |
Retain structure flag. | |
TObject * | fSelected |
! Currently selected object | |
TString | fSelectedOpt |
! Drawing option of selected object | |
TPad * | fSelectedPad |
! Pad containing currently selected object | |
Int_t | fSelectedX |
! X of selected object | |
Int_t | fSelectedY |
! Y of selected object | |
Bool_t | fUpdating |
! True when Updating the canvas | |
Bool_t | fUseGL |
! True when rendering is with GL | |
UInt_t | fWindowHeight |
Height of window (including menubar, borders, etc.) | |
Int_t | fWindowTopX |
Top X position of window (in pixels) | |
Int_t | fWindowTopY |
Top Y position of window (in pixels) | |
UInt_t | fWindowWidth |
Width of window (including borders, etc.) | |
Size_t | fXsizeReal |
Current size of canvas along X in CM. | |
Size_t | fXsizeUser |
User specified size of canvas along X in CM. | |
Size_t | fYsizeReal |
Current size of canvas along Y in CM. | |
Size_t | fYsizeUser |
User specified size of canvas along Y in CM. | |
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Bool_t | fAbsCoord |
Use absolute coordinates. | |
Double_t | fAbsHNDC |
Absolute Height of pad along Y in NDC. | |
Double_t | fAbsPixeltoXk |
Conversion coefficient for absolute pixel to X World. | |
Double_t | fAbsPixeltoYk |
Conversion coefficient for absolute pixel to Y World. | |
Double_t | fAbsWNDC |
Absolute Width of pad along X in NDC. | |
Double_t | fAbsXlowNDC |
Absolute X top left corner of pad in NDC [0,1]. | |
Double_t | fAbsYlowNDC |
Absolute Y top left corner of pad in NDC [0,1]. | |
Double_t | fAspectRatio |
ratio of w/h in case of fixed ratio | |
Short_t | fBorderMode |
Bordermode (-1=down, 0 = no border, 1=up) | |
Short_t | fBorderSize |
pad bordersize in pixels | |
TCanvas * | fCanvas |
! Pointer to mother canvas | |
Int_t | fCGnx |
! Size of the collide grid along x | |
Int_t | fCGny |
! Size of the collide grid along y | |
Bool_t * | fCollideGrid |
! Grid used to find empty space when adding a box (Legend) in a pad | |
Bool_t | fCopyGLDevice |
! | |
Int_t | fCrosshair |
Crosshair type (0 if no crosshair requested) | |
Int_t | fCrosshairPos |
Position of crosshair. | |
Bool_t | fEditable |
True if canvas is editable. | |
Bool_t | fEmbeddedGL |
! | |
TList * | fExecs |
List of commands to be executed when a pad event occurs. | |
Bool_t | fFixedAspectRatio |
True if fixed aspect ratio. | |
TFrame * | fFrame |
! Pointer to 2-D frame (if one exists) | |
Int_t | fGLDevice |
! OpenGL off-screen pixmap identifier | |
Bool_t | fGridx |
Set to true if grid along X. | |
Bool_t | fGridy |
Set to true if grid along Y. | |
Double_t | fHNDC |
Height of pad along Y in Normalized Coordinates (NDC) | |
Int_t | fLogx |
(=0 if X linear scale, =1 if log scale) | |
Int_t | fLogy |
(=0 if Y linear scale, =1 if log scale) | |
Int_t | fLogz |
(=0 if Z linear scale, =1 if log scale) | |
Bool_t | fModified |
Set to true when pad is modified. | |
TPad * | fMother |
! pointer to mother of the list | |
TString | fName |
Pad name. | |
Int_t | fNextPaletteColor |
Next automatic color. | |
Int_t | fNumber |
pad number identifier | |
Int_t | fNumPaletteColor |
Number of objects with an automatic color. | |
Int_t | fPadPaint |
Set to 1 while painting the pad. | |
TObject * | fPadPointer |
! free pointer | |
TObject * | fPadView3D |
! 3D View of this TPad | |
Double_t | fPhi |
phi angle to view as lego/surface | |
Double_t | fPixeltoX |
xworld = fPixeltoXk + fPixeltoX*xpixel | |
Double_t | fPixeltoXk |
Conversion coefficient for pixel to X World. | |
Double_t | fPixeltoY |
yworld = fPixeltoYk + fPixeltoY*ypixel | |
Double_t | fPixeltoYk |
Conversion coefficient for pixel to Y World. | |
Int_t | fPixmapID |
! Off-screen pixmap identifier | |
TList * | fPrimitives |
->List of primitives (subpads) | |
Double_t | fTheta |
theta angle to view as lego/surface | |
Int_t | fTickx |
Set to 1 if tick marks along X. | |
Int_t | fTicky |
Set to 1 if tick marks along Y. | |
TString | fTitle |
Pad title. | |
Double_t | fUtoAbsPixelk |
Conversion coefficient for U NDC to absolute pixel. | |
Double_t | fUtoPixel |
xpixel = fUtoPixelk + fUtoPixel*undc | |
Double_t | fUtoPixelk |
Conversion coefficient for U NDC to pixel. | |
Double_t | fUxmax |
Maximum value on the X axis. | |
Double_t | fUxmin |
Minimum value on the X axis. | |
Double_t | fUymax |
Maximum value on the Y axis. | |
Double_t | fUymin |
Minimum value on the Y axis. | |
TView * | fView |
! Pointer to 3-D view (if one exists) | |
TVirtualViewer3D * | fViewer3D |
! Current 3D viewer | |
Double_t | fVtoAbsPixelk |
Conversion coefficient for V NDC to absolute pixel. | |
Double_t | fVtoPixel |
ypixel = fVtoPixelk + fVtoPixel*vndc | |
Double_t | fVtoPixelk |
Conversion coefficient for V NDC to pixel. | |
Double_t | fWNDC |
Width of pad along X in Normalized Coordinates (NDC) | |
Double_t | fX1 |
X of lower X coordinate. | |
Double_t | fX2 |
X of upper X coordinate. | |
Double_t | fXlowNDC |
X bottom left corner of pad in NDC [0,1]. | |
Double_t | fXtoAbsPixelk |
Conversion coefficient for X World to absolute pixel. | |
Double_t | fXtoPixel |
xpixel = fXtoPixelk + fXtoPixel*xworld | |
Double_t | fXtoPixelk |
Conversion coefficient for X World to pixel. | |
Double_t | fXUpNDC |
Double_t | fY1 |
Y of lower Y coordinate. | |
Double_t | fY2 |
Y of upper Y coordinate. | |
Double_t | fYlowNDC |
Y bottom left corner of pad in NDC [0,1]. | |
Double_t | fYtoAbsPixelk |
Conversion coefficient for Y World to absolute pixel. | |
Double_t | fYtoPixel |
ypixel = fYtoPixelk + fYtoPixel*yworld | |
Double_t | fYtoPixelk |
Conversion coefficient for Y World to pixel. | |
Double_t | fYUpNDC |
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Bool_t | fResizing |
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Color_t | fLineColor |
Line color. | |
Style_t | fLineStyle |
Line style. | |
Width_t | fLineWidth |
Line width. | |
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Color_t | fFillColor |
Fill area color. | |
Style_t | fFillStyle |
Fill area style. | |
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Float_t | fAfile |
Alignment for the file name. | |
Float_t | fAstat |
Alignment for the statistics. | |
Float_t | fBottomMargin |
BottomMargin. | |
Int_t | fFrameBorderMode |
Pad frame border mode. | |
Width_t | fFrameBorderSize |
Pad frame border size. | |
Color_t | fFrameFillColor |
Pad frame fill color. | |
Style_t | fFrameFillStyle |
Pad frame fill style. | |
Color_t | fFrameLineColor |
Pad frame line color. | |
Style_t | fFrameLineStyle |
Pad frame line style. | |
Width_t | fFrameLineWidth |
Pad frame line width. | |
Float_t | fLeftMargin |
LeftMargin. | |
Float_t | fRightMargin |
RightMargin. | |
Float_t | fTopMargin |
TopMargin. | |
Float_t | fXfile |
X position where to draw the file name. | |
Float_t | fXstat |
X position where to draw the statistics. | |
Float_t | fYfile |
Y position where to draw the file name. | |
Float_t | fYstat |
Y position where to draw the statistics. | |
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TList * | fListOfConnections |
list of signals from this object | |
TList * | fListOfSignals |
Bool_t | fSignalsBlocked |
list of connections to this object | |
Static Protected Attributes | |
static Bool_t | fgIsFolder = kFALSE |
Indicates if canvas can be browsed as a folder. | |
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static Int_t | fgMaxPickDistance = 5 |
Maximum Pick Distance. | |
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static Bool_t | fgAllSignalsBlocked = kFALSE |
flag used for suppression of signals | |
Private Member Functions | |
TCanvas (const TCanvas &canvas)=delete | |
void | Build () |
Build a canvas. Called by all constructors. | |
void | CopyPixmaps () override |
Copy the canvas pixmap of the pad to the canvas. | |
void | CreatePainter () |
Probably, TPadPainter must be placed in a separate ROOT module - "padpainter" (the same as "histpainter"). | |
void | DrawEventStatus (Int_t event, Int_t x, Int_t y, TObject *selected) |
Report name and title of primitive below the cursor. | |
TCanvas & | operator= (const TCanvas &rhs)=delete |
void | RunAutoExec () |
Execute the list of TExecs in the current pad. | |
Friends | |
class | TCanvasImp |
class | TInterpreter |
class | TThread |
Additional Inherited Members | |
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enum | { kOnlyPrepStep = BIT(3) } |
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static Int_t | CheckConnectArgs (TQObject *sender, TClass *sender_class, const char *signal, TClass *receiver_class, const char *slot) |
Checking of consistency of sender/receiver methods/arguments. | |
static TString | CompressName (const char *method_name) |
Removes "const" words and blanks from full (with prototype) method name and resolve any typedefs in the method signature. | |
static Bool_t | ConnectToClass (const char *sender_class, const char *signal, TClass *receiver_class, void *receiver, const char *slot) |
This method allows to make connection from any object of the same class to the receiver object. | |
static Bool_t | ConnectToClass (TQObject *sender, const char *signal, TClass *receiver_class, void *receiver, const char *slot) |
Create connection between sender and receiver. | |
#include <TCanvas.h>
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Canvas default constructor.
Definition at line 130 of file TCanvas.cxx.
TCanvas::TCanvas | ( | const char * | name, |
const char * | title = "" , |
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Int_t | form = 1 |
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Create a new canvas with a predefined size form.
If form < 0 the menubar is not shown.
If "name" starts with "gl" the canvas is ready to receive GL output.
Definition at line 261 of file TCanvas.cxx.
Create a new canvas at a random position.
[in] | name | canvas name |
[in] | title | canvas title |
[in] | ww | is the canvas size in pixels along X (if ww < 0 the menubar is not shown) |
[in] | wh | is the canvas size in pixels along Y |
If "name" starts with "gl" the canvas is ready to receive GL output.
Definition at line 364 of file TCanvas.cxx.
TCanvas::TCanvas | ( | const char * | name, |
const char * | title, | ||
Int_t | wtopx, | ||
Int_t | wtopy, | ||
Int_t | ww, | ||
Int_t | wh | ||
) |
Create a new canvas.
[in] | name | canvas name |
[in] | title | canvas title |
[in] | wtopx,wtopy | are the pixel coordinates of the top left corner of the canvas (if wtopx < 0) the menubar is not shown) |
[in] | ww | is the canvas size in pixels along X |
[in] | wh | is the canvas size in pixels along Y |
If "name" starts with "gl" the canvas is ready to receive GL output.
Definition at line 450 of file TCanvas.cxx.
Create an embedded canvas, i.e.
a canvas that is in a TGCanvas widget which is placed in a TGFrame. This ctor is only called via the TRootEmbeddedCanvas class.
If "name" starts with "gl" the canvas is ready to receive GL output.
Definition at line 215 of file TCanvas.cxx.
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Canvas destructor.
Definition at line 666 of file TCanvas.cxx.
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Build a canvas. Called by all constructors.
Definition at line 576 of file TCanvas.cxx.
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Set current canvas & pad.
Returns the new current pad, or 0 in case of failure. See TPad::cd() for an explanation of the parameter.
Implements TVirtualPad.
Definition at line 708 of file TCanvas.cxx.
Remove all primitives from the canvas.
If option "D" is specified, direct sub-pads are cleared but not deleted. This option is not recursive, i.e. pads in direct sub-pads are deleted.
Implements TVirtualPad.
Definition at line 727 of file TCanvas.cxx.
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Emit pad Cleared signal.
Definition at line 760 of file TCanvas.cxx.
Close canvas.
Delete window/pads data structure
Implements TVirtualPad.
Definition at line 778 of file TCanvas.cxx.
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void TCanvas::Constructor | ( | ) |
Canvas default constructor.
Definition at line 183 of file TCanvas.cxx.
Create a new canvas with a predefined size form.
If form < 0 the menubar is not shown.
Definition at line 279 of file TCanvas.cxx.
void TCanvas::Constructor | ( | const char * | name, |
const char * | title, | ||
Int_t | wtopx, | ||
Int_t | wtopy, | ||
Int_t | ww, | ||
Int_t | wh | ||
) |
Create a new canvas.
[in] | name | canvas name |
[in] | title | canvas title |
[in] | wtopx,wtopy | are the pixel coordinates of the top left corner of the canvas (if wtopx < 0) the menubar is not shown) |
[in] | ww | is the canvas size in pixels along X |
[in] | wh | is the canvas size in pixels along Y |
Definition at line 469 of file TCanvas.cxx.
Create a new canvas at a random position.
[in] | name | canvas name |
[in] | title | canvas title |
[in] | ww | is the canvas size in pixels along X (if ww < 0 the menubar is not shown) |
[in] | wh | is the canvas size in pixels along Y |
Definition at line 381 of file TCanvas.cxx.
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Copy the canvas pixmap of the pad to the canvas.
Implements TVirtualPad.
Definition at line 827 of file TCanvas.cxx.
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Probably, TPadPainter must be placed in a separate ROOT module - "padpainter" (the same as "histpainter").
But now, it's directly in a gpad dir, so, in case of default painter, no *.so should be loaded, no need in plugin managers. May change in future.
Definition at line 2586 of file TCanvas.cxx.
void TCanvas::DeleteCanvasPainter | ( | ) |
assert on IsBatch() == false?
Definition at line 2617 of file TCanvas.cxx.
void TCanvas::Destructor | ( | ) |
Actual canvas destructor.
Definition at line 684 of file TCanvas.cxx.
void TCanvas::DisconnectWidget | ( | ) |
Used by friend class TCanvasImp.
Definition at line 2554 of file TCanvas.cxx.
Draw a canvas.
If a canvas with the name is already on the screen, the canvas is repainted. This function is useful when a canvas object has been saved in a Root file. One can then do:
Implements TVirtualPad.
Definition at line 845 of file TCanvas.cxx.
Draw a clone of this canvas A new canvas is created that is a clone of this canvas.
Reimplemented from TObject.
Definition at line 892 of file TCanvas.cxx.
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Draw a clone of this canvas into the current pad In an interactive session, select the destination/current pad with the middle mouse button, then point to the canvas area to select the canvas context menu item DrawClonePad.
Note that the original canvas may have subpads.
Definition at line 909 of file TCanvas.cxx.
Report name and title of primitive below the cursor.
This function is called when the option "Event Status" in the canvas menu "Options" is selected.
Definition at line 964 of file TCanvas.cxx.
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Get editor bar.
Definition at line 1030 of file TCanvas.cxx.
Embedded a canvas into a TRootEmbeddedCanvas.
This method is only called via TRootEmbeddedCanvas::AdoptCanvas.
Definition at line 1039 of file TCanvas.cxx.
Generate kMouseEnter and kMouseLeave events depending on the previously selected object and the currently selected object.
Does nothing if the selected object does not change.
Definition at line 1065 of file TCanvas.cxx.
Execute action corresponding to one event.
This member function must be implemented to realize the action corresponding to the mouse click on the object in the canvas
Only handle mouse motion events in TCanvas, all other events are ignored for the time being
Reimplemented from TObject.
Definition at line 1102 of file TCanvas.cxx.
Turn rubberband feedback mode on or off.
Definition at line 1120 of file TCanvas.cxx.
void TCanvas::Flush | ( | ) |
Flush canvas buffers.
Definition at line 1134 of file TCanvas.cxx.
void TCanvas::ForceUpdate | ( | ) |
Force canvas update.
Definition at line 1168 of file TCanvas.cxx.
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Implements TVirtualPad.
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Implements TVirtualPad.
TVirtualPadPainter * TCanvas::GetCanvasPainter | ( | ) |
Access and (probably) creation of pad painter.
Definition at line 2607 of file TCanvas.cxx.
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Implements TVirtualPad.
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Implements TVirtualPad.
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Implements TVirtualPad.
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Implements TVirtualPad.
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Implements TVirtualPad.
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Implements TVirtualPad.
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Implements TVirtualPad.
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Implements TVirtualPad.
Int_t TCanvas::GetWindowTopX | ( | ) |
Returns current top x position of window on screen.
Definition at line 1201 of file TCanvas.cxx.
Int_t TCanvas::GetWindowTopY | ( | ) |
Returns current top y position of window on screen.
Definition at line 1212 of file TCanvas.cxx.
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Implements TVirtualPad.
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Handle Input Events.
Handle input events, like button up/down in current canvas.
Definition at line 1225 of file TCanvas.cxx.
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This is "simplification" for function TCanvas::Connect with Highlighted signal for specific slot.
Slot has to be defined "UserFunction(TVirtualPad *pad, TObject *obj, Int_t x, Int_t y)" all parameters of UserFunction are taken from TCanvas::Highlighted
Definition at line 1633 of file TCanvas.cxx.
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Emit Highlighted() signal.
Definition at line 1614 of file TCanvas.cxx.
void TCanvas::Iconify | ( | ) |
Iconify canvas.
Definition at line 1469 of file TCanvas.cxx.
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Initialize the TCanvas members. Called by all constructors.
Definition at line 527 of file TCanvas.cxx.
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Implements TVirtualPad.
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Bool_t TCanvas::IsGrayscale | ( | ) |
Check whether this canvas is to be drawn in grayscale mode.
Definition at line 2563 of file TCanvas.cxx.
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Implements TVirtualPad.
Bool_t TCanvas::IsWeb | ( | ) | const |
Is web canvas.
Definition at line 1486 of file TCanvas.cxx.
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Static function to build a default canvas.
Definition at line 1506 of file TCanvas.cxx.
Set option to move objects/pads in a canvas.
The option opaque produces the best effect. It requires however a a reasonably fast workstation or response time.
Definition at line 1537 of file TCanvas.cxx.
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Implements TVirtualPad.
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Implements TVirtualPad.
Prepare for pick, call TPad::Pick() and when selected object is different from previous then emit Picked() signal.
Definition at line 1555 of file TCanvas.cxx.
Search for an object at pixel position px,py.
Check if point is in this pad.
If yes, check if it is in one of the sub-pads
If found in the pad, compute closest distance of approach to each primitive.
If one distance of approach is found to be within the limit Distancemaximum the corresponding primitive is selected and the routine returns.
Reimplemented from TPad.
Emit Picked() signal.
Definition at line 1595 of file TCanvas.cxx.
Emit ProcessedEvent() signal.
Definition at line 1655 of file TCanvas.cxx.
void TCanvas::RaiseWindow | ( | ) |
Raise canvas window.
Definition at line 1749 of file TCanvas.cxx.
Recompute canvas parameters following a X11 Resize.
Definition at line 1670 of file TCanvas.cxx.
Set option to resize objects/pads in a canvas.
The option opaque produces the best effect. It requires however a a reasonably fast workstation or response time.
Definition at line 1764 of file TCanvas.cxx.
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Execute the list of TExecs in the current pad.
Definition at line 1772 of file TCanvas.cxx.
Save primitives in this canvas in C++ macro file with GUI.
Reimplemented from TObject.
Definition at line 1783 of file TCanvas.cxx.
Save primitives in this canvas as a C++ macro file.
This function loops on all the canvas primitives and for each primitive calls the object SavePrimitive function. When outputting floating point numbers, the default precision is 7 digits. The precision can be changed (via system.rootrc) by changing the value of the environment variable "Canvas.SavePrecision"
Definition at line 1828 of file TCanvas.cxx.
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Emit Selected() signal.
Definition at line 1641 of file TCanvas.cxx.
Toggle batch mode.
However, if the canvas is created without a window then batch mode always stays set.
Implements TVirtualPad.
Definition at line 1979 of file TCanvas.cxx.
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Set Width and Height of canvas to ww and wh respectively.
If ww and/or wh are greater than the current canvas window a scroll bar is automatically generated. Use this function to zoom in a canvas and navigate via the scroll bars. The Width and Height in this method are different from those given in the TCanvas constructors where these two dimension include the size of the window decoration whereas they do not in this method.
Implements TVirtualPad.
Definition at line 1995 of file TCanvas.cxx.
Fix canvas aspect ratio to current value if fixed is true.
Implements TVirtualPad.
Definition at line 2034 of file TCanvas.cxx.
If isfolder=kTRUE, the canvas can be browsed like a folder by default a canvas is not browsable.
Definition at line 2056 of file TCanvas.cxx.
Set whether this canvas should be painted in grayscale, and re-paint it if necessary.
Definition at line 2572 of file TCanvas.cxx.
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Set canvas name. In case name
is an empty string, a default name is set.
Implements TVirtualPad.
Reimplemented in TDialogCanvas.
Definition at line 2064 of file TCanvas.cxx.
Function to resize a canvas so that the plot inside is shown in real aspect ratio.
[in] | axis | 1 for resizing horizontally (x-axis) in order to get real aspect ratio, 2 for the resizing vertically (y-axis) |
Definition at line 2107 of file TCanvas.cxx.
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Set canvas window position.
Definition at line 2192 of file TCanvas.cxx.
Set canvas window size.
Definition at line 2201 of file TCanvas.cxx.
void TCanvas::Show | ( | ) |
Show canvas.
Definition at line 2240 of file TCanvas.cxx.
Set the canvas scale in centimeters.
This information is used by PostScript to set the page size.
[in] | xsize | size of the canvas in centimeters along X |
[in] | ysize | size of the canvas in centimeters along Y |
if xsize and ysize are not equal to 0, then the scale factors will be computed to keep the ratio ysize/xsize independently of the canvas size (parts of the physical canvas will be unused).
if xsize = 0 and ysize is not zero, then xsize will be computed to fit to the current canvas scale. If the canvas is resized, a new value for xsize will be recomputed. In this case the aspect ratio is not preserved.
if both xsize = 0 and ysize = 0, then the scaling is automatic. the largest dimension will be allocated a size of 20 centimeters.
Definition at line 2229 of file TCanvas.cxx.
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Static function returning "true" if transparency is supported.
Definition at line 2491 of file TCanvas.cxx.
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Toggle pad auto execution of list of TExecs.
Definition at line 2437 of file TCanvas.cxx.
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Toggle editor.
Definition at line 2468 of file TCanvas.cxx.
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Toggle event statusbar.
Definition at line 2446 of file TCanvas.cxx.
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Toggle toolbar.
Definition at line 2457 of file TCanvas.cxx.
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Toggle tooltip display.
Definition at line 2479 of file TCanvas.cxx.
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Force a copy of current style for all objects in canvas.
Reimplemented from TObject.
Definition at line 1176 of file TCanvas.cxx.
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