PUBLIC

GUICanvasC::GUICanvasC(void) GUICanvasC::GUICanvasC(int,int,BooleanT) GUICanvasC::GUICanvasC(GUICanvasBodyC &) GUICanvasC::DrawArea(void) GUICanvasC::GUIResize(int &,int &) GUICanvasC::GUIRender(GUIRenderC &) GUICanvasC::Resize(int,int) GUICanvasC::SetMouseEventMask(BooleanT,BooleanT,BooleanT) GUICanvasC::Grey(void) const GUICanvasC::YUV(void) const GUICanvasC::RGB(void) const GUICanvasC::GetColour(int) GUICanvasC::DrawGC(void) DPOPortC::Put(const DataT &) DPOPortC::PutArray(const SArray1dC &) DPOPortC::IsPutReady(void) const GUIWidgetC::Destroy(void) GUIWidgetC::Widget(void) GUIWidgetC::WidgetName(void) const GUIWidgetC::Name(void) const GUIWidgetC::WidgetID(void) const GUIWidgetC::Service(void) GUIWidgetC::Create(void) GUIWidgetC::GUIShow(void) GUIWidgetC::GUIHide(void) GUIWidgetC::Show(void) GUIWidgetC::Hide(void) GUIWidgetC::Position(void) const GUIWidgetC::Size(void) const GUIWidgetC::GUISetUSize(IntT,IntT) GUIWidgetC::SetState(GtkStateType) GUIWidgetC::Rectangle(void) const GUIWidgetC::operator+(const GUIWidgetC &) const GUIWidgetC::Signal(const char *) GUIWidgetC::SetToolTip(const char *,const char *) GUIWidgetC::AddEventMask(IntT) GUIWidgetC::DelEventMask(IntT) GUIWidgetC::ShapeCombineMask(GdkBitmap &,int,int) DPOPortBaseC::PutEOS(void) DPOPortBaseC::OutputType(void) const DPEntityC::operator=(const DPEntityC &) DPEntityC::Body(void) DPEntityC::Body(void) const DPEntityC::Save(ostream &) const DPPortC::IsAsync(void) const DPPortC::ConnectedTo(void) const DPPortC::GetAttr(const StringC &,StringC &) DPPortC::SetAttr(const StringC &,const StringC &) RCHandleAC::Abstract(void) RCHandleAC::IsHandleType(const DT &) const RCHandleAC::CheckHandleType(const DT &) const RCHandleAC::Save(ostream &) const RCHandleAC::Copy(void) const DPEntityC::operator=(const DPEntityC &) DPEntityC::Body(void) DPEntityC::Body(void) const DPEntityC::Save(ostream &) const RCHandleC::IsValid(void) const RCHandleC::IsValidObject(void) const RCHandleC::operator=(const RCHandleC &) RCHandleC::operator==(const RCHandleC &) const RCHandleC::operator!=(const RCHandleC &) const RCHandleC::Hash(void) const RCHandleC::IsConst(void) const RCHandleC::IsNotConst(void) const RCHandleC::SetConst(void) const RCHandleC::Invalidate(void) RCHandleC::Body(void) RCHandleC::Body(void) const

GUICanvasC
Widget in which graphics can be rendered.
include	"amma/GUI/Canvas.hh"
User Level:	Default
Library:	GUI
Example:	exCanvas.cc
Section:	GUI.Widget
In Scope:	std

Parent Classes:

public DPOPortC<class DataT>
public GUIWidgetC

GUICanvasFC

GUICanvasC()

Default constructor.
NB. This creates an invalid handle.

GUICanvasC(int xs,int ys,BooleanT direct = FALSE)

Constructor.

GUICanvasC(GUICanvasBodyC & body)

Body constructor.

GdkDrawable * DrawArea()

Get drawing area.

void GUIResize(int & nsx,int & nsy)

Resize canvas.
Call with the GUI Thread only

void GUIRender(GUIRenderC & r)

Resize canvas.
Call with the GUI Thread only

BooleanT Resize(int nsx,int nsy)

Resize canvas.

void SetMouseEventMask(BooleanT getMove,BooleanT getPress,BooleanT getRelease)

Setup which events will be given to 'MouseEvent()'

DPOPortC<ImageC<ByteGreyValueT>> Grey() const

Make grey level output image.

DPOPortC<ImageC<ByteYUVValueC>> YUV() const

Make YUV level output image.

DPOPortC<ImageC<ByteRGBValueC>> RGB() const

Make YUV level output image.

GdkColor & GetColour(int n)

Access colour.
GUI thread only.

GdkGC * DrawGC()

Drawing context.
GUI thread only.

BooleanT Put(const GUIRenderC & dat)

Put data to stream
Returns true if data is put into stream succesfully.

IntT PutArray(const SArray1dC<GUIRenderC> & data)

Put an array of data elements into a stream.
returns the number of elements processed from the array.

BooleanT IsPutReady() const

Is port ready for data ?

void Destroy()

See body class for details.

GtkWidget * Widget()

Access widget.

StringC WidgetName() const

Get widget's name.
Call only from GUI thread.

StringC Name() const

Get name of widget.
Defaults to WidgetName(), but may be differnt for Lables etc.

int WidgetID() const

Get widget id.

BooleanT Service()

Service request.

BooleanT Create()

Create the widget.

void GUIShow()

Show widget on the display.
Call only from GUI thread.

void GUIHide()

Hide widget on the display.
Call only from GUI thread.

void Show()

Show widget on the display.
Thread safe.

void Hide()

Hide widget on the display.
Thread safe.

PixelC Position() const

Widget position.

PixelC Size() const

Size of wiget in pixels

void GUISetUSize(IntT x,IntT y)

Set size of widget.
GUI thread only.

void SetState(GtkStateType state)

Set state

IndexRectangleC Rectangle() const

Widget position and extent within its parent window.

DListC<GUIWidgetC> operator+(const GUIWidgetC & widge) const

Add into list.

Signal0C & Signal(const char * nm)

Get handle for named signal.
Signal is created and connected when this function is first called. There after the same signal is returned.

If the signal is unrecognised an invalid handle is returned.

The exact signal type depends on the signal requested, if not otherwise specified it is a Signal1C.

void SetToolTip(const char * text,const char * ctxt = 0)

Set the tool tip for the widget.
NB. Not all widgets can display tooltips.

void AddEventMask(IntT event)

Add to the event mask.

void DelEventMask(IntT event)

Remove from the event mask.

void ShapeCombineMask(GdkBitmap & mask,int off_x = 0,int off_y = 0)

Make a shape mask for the widget.
GUI thread only.

void PutEOS()

Put End Of Stream marker.

const type_info & OutputType() const

Get type of output port.

const DPEntityC & operator=(const DPEntityC & dat)

Assignment.

DPEntityBodyC & Body()

Access body.

const DPEntityBodyC & Body() const

Access body.

BooleanT Save(ostream & out) const

BooleanT IsAsync() const

Does port work asynchronously ??

DPPortC ConnectedTo() const

Is this port connected to another ?
If not returns invalid handle.

BooleanT GetAttr(const StringC & attrName,StringC & attrValue)

Get a stream attribute.
Returns false if the attribute name is unknown. This is for handling stream attributes such as frame rate, and compression ratios.

BooleanT SetAttr(const StringC & attrName,const StringC & attrValue)

Set a stream attribute.
Returns false if the attribute name is unknown. This is for handling stream attributes such as frame rate, and compression ratios.

RCAbstractC Abstract()

Create an abstract handle to this object.

BooleanT IsHandleType(const DT &) const

Is handle of given type ?

void CheckHandleType(const DT & dummy) const

Check handle type. Throw an expception if not.

BooleanT Save(ostream & out) const

Save to ostream.

RCHandleAC<DPEntityBodyC> Copy() const

Creat a deep copy of this object.
protected:

const DPEntityC & operator=(const DPEntityC & dat)

Assignment.

DPEntityBodyC & Body()

Access body.

const DPEntityBodyC & Body() const

Access body.

BooleanT Save(ostream & out) const

BooleanT IsValid() const

Check its a valid handle.

BooleanT IsValidObject() const

Check its a valid handle, and that the object is pointed to is also valid.

RCHandleC<DPEntityBodyC> & operator=(const RCHandleC<DPEntityBodyC> & oth)

Assignment.

BooleanT operator==(const RCHandleC<DPEntityBodyC> & oth) const

Comparison operator.

BooleanT operator!=(const RCHandleC<DPEntityBodyC> & oth) const

Comparison operator.

UIntT Hash() const

Hash function.x

BooleanT IsConst() const

Is object constant ?

BooleanT IsNotConst() const

Is object not constant ?

void SetConst(void) const

Lock the object.
This is const as a convience though it actual modified the object, often object you wish to ensure are constant already have const set. protected:

void Invalidate()

Turn this into an invalid handle.

DPEntityBodyC & Body()

Direct access to body.

const DPEntityBodyC & Body() const

Constant access to body.