AttrTextureTranspFill Class Reference

Fractal Colour Fill Attribute class. Transparency base class for textures. More...

#include <fillattr2.h>

Inheritance diagram for AttrTextureTranspFill:

List of all members.

Public Member Functions
	AttrTextureTranspFill ()
	Constructor for a fractal fill.
	AttrTextureTranspFill (Node *ContextNode, AttachNodeDirection Direction, BOOL Locked=FALSE, BOOL Mangled=FALSE, BOOL Marked=FALSE, BOOL Selected=FALSE)
	~AttrTextureTranspFill ()
	Destructor for a fractal fill.
virtual void	Render (RenderRegion *pRender)
	'Renders' a Fractal Fill Transp attribute.
virtual Node *	SimpleCopy ()
	This method returns a shallow copy of the node with all Node pointers NULL. The function is virtual, and must be defined for all derived classes.
virtual void	GetDebugDetails (StringBase *Str)
	Output details of this attribute to the Camelot debug tree dialog.
virtual UINT32	GetAttrNameID (void)
	Returns a string resource ID describing the attribute.
virtual void	RenderFillMesh (RenderRegion *, DocCoord *, BOOL *, INT32 NumControlPoints=0)
virtual void	OnControlDrag (DocCoord, FillControl &, ClickModifiers)
virtual FillControl	CheckForControlHit (DocCoord &)
	Check to see if a click was on a Fill Control Point.
virtual void	RenderFillBlobs (RenderRegion *pRender)
	Renders the grad fills arrow blob when requested to by its selected parent.
virtual BOOL	IsVisible ()
virtual BOOL	NeedsTransparency () const
	Called.
virtual CCRuntimeClass *	GetAttributeType ()
virtual AttributeValue *	GetAttributeValue ()
virtual BOOL	ChangeControlTransp (AttrTranspChange *NewTransp)
	Applies a colour to selected Fill Control Points.
AttrFillGeometry *	ChangeAttrValue (AttrValueChange *pValue)
virtual BOOL	IsATranspFill () const
	Virtual function for determining if the node is an attribute.
virtual BOOL	IsSeeThrough (BOOL CheckIndirectAttrs)
Protected Member Functions
virtual void	RenderControl (FillControl, BOOL)
	Redraws the Fill Control blobs when the selection changes.

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Detailed Description

Fractal Colour Fill Attribute class. Transparency base class for textures.

Author:

Mike_Kenny (Xara Group Ltd) <camelotdev@xara.com>

Date:

20/01/97

See also:

AttrFractalFill

Definition at line 2303 of file fillattr2.h.

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Constructor & Destructor Documentation

AttrTextureTranspFill::AttrTextureTranspFill (   )

Constructor for a fractal fill. Author: Will_Cowling (Xara Group Ltd) <camelotdev@xara.com> Date: 16/9/94 Definition at line 17228 of file fillattr.cpp. { }

AttrTextureTranspFill::AttrTextureTranspFill (  Node *  ContextNode, AttachNodeDirection  Direction, BOOL  Locked = FALSE, BOOL  Mangled = FALSE, BOOL  Marked = FALSE, BOOL  Selected = FALSE )  [inline]

Definition at line 2309 of file fillattr2.h. : AttrFractalFill(ContextNode, Direction, Locked, Mangled, Marked, Selected) {}

AttrTextureTranspFill::~AttrTextureTranspFill (   )

Destructor for a fractal fill. Author: Will_Cowling (Xara Group Ltd) <camelotdev@xara.com> Date: 16/9/94 Definition at line 17242 of file fillattr.cpp. { }

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Member Function Documentation

AttrFillGeometry* AttrTextureTranspFill::ChangeAttrValue (  AttrValueChange *  pValue  )  [inline, virtual]

Reimplemented from AttrFillGeometry. Definition at line 2338 of file fillattr2.h. { return ChangeTransp(pValue); }

virtual BOOL AttrTextureTranspFill::ChangeControlTransp (  AttrTranspChange *  NewTransp  )  [inline, virtual]

Applies a colour to selected Fill Control Points. Author: Will_Cowling (Xara Group Ltd) <camelotdev@xara.com> Date: 2/9/94 Parameters: NewColour,the  colour that selected control points should change to. [INPUTS] Returns: TRUE if a control point was selected, and the colour applied. See also: AttrFillGeometry::Mutate Reimplemented from AttrBitmapFill. Definition at line 2335 of file fillattr2.h. { return AttrFillGeometry::ChangeControlTransp(NewTransp); }

FillControl AttrTextureTranspFill::CheckForControlHit (  DocCoord &  ClickPos  )  [virtual]

Check to see if a click was on a Fill Control Point. Author: Will_Cowling (Xara Group Ltd) <camelotdev@xara.com> Date: 21/07/94 Parameters: ClickPos,The  DocCoord position to check. [INPUTS] Returns: A FillControl, indicating the Fill Control Point Hit, or FILLCONTROL_NULL, if no points hit. See also: FillControl Reimplemented from AttrBitmapFill. Definition at line 17437 of file fillattr.cpp. { #if !defined(EXCLUDE_FROM_RALPH) if (!GetApplication()->GetBlobManager()->GetCurrentInterest().Fill || !IsVisible()) return FILLCONTROL_NULL; // Set up a default, that indicates not control points hit FillControl HitControl = FILLCONTROL_NULL; DocRect BlobRect; DocCoord StartPoint = *GetStartPoint(); DocCoord EndPoint = *GetEndPoint(); DocCoord EndPoint2 = *GetEndPoint2(); // Bodge Alert !! // Bitmap fills have a complicated control point system. // The actual control points needed for rendering are the Bottom Left, // Top Left, and Bottom Right points of the bitmap. But on screen the // points seen and moved are the Centre, Middle Right, and Middle Top. // So we need to convert the click points into vitual points before // we do the hit test. DocCoord CentrePoint; DocCoord Drag2Blob; DocCoord Drag3Blob; GetBitmapVirtualPoints(StartPoint, EndPoint, EndPoint2, &CentrePoint, &Drag2Blob, &Drag3Blob); // Get the rectangle around the Centre Control Point (Camelot.GetBlobManager())->GetBlobRect(CentrePoint, &BlobRect); // See if the Click Position is within the rectangle if ( BlobRect.ContainsCoord(ClickPos) ) HitControl = FILLCONTROL_STARTPOINT; // Get the rectangle around the First End Point (Camelot.GetBlobManager())->GetBlobRect(Drag2Blob, &BlobRect); // See if the Click Position is within the rectangle if ( BlobRect.ContainsCoord(ClickPos) ) HitControl = FILLCONTROL_ENDPOINT; // Get the rectangle around the Second End Point (Camelot.GetBlobManager())->GetBlobRect(Drag3Blob, &BlobRect); // See if the Click Position is within the rectangle if ( BlobRect.ContainsCoord(ClickPos) ) HitControl = FILLCONTROL_SECONDARYPOINT; return HitControl; #else return FILLCONTROL_NULL; #endif }

virtual CCRuntimeClass* AttrTextureTranspFill::GetAttributeType (   )  [inline, virtual]

Reimplemented from NodeAttribute. Definition at line 2332 of file fillattr2.h. { return CC_RUNTIME_CLASS(AttrTranspFillGeometry); }

virtual AttributeValue* AttrTextureTranspFill::GetAttributeValue (   )  [inline, virtual]

Implements AttrBitmapFill. Reimplemented in AttrFractalTranspFill, and AttrNoiseTranspFill. Definition at line 2333 of file fillattr2.h. { return NULL; }

UINT32 AttrTextureTranspFill::GetAttrNameID (  void   )  [virtual]

Returns a string resource ID describing the attribute. Author: Will_Cowling (Xara Group Ltd) <camelotdev@xara.com> Date: 23/8/94 Returns: Attribute description ID Reimplemented from NodeAttribute. Reimplemented in AttrFractalTranspFill, and AttrNoiseTranspFill. Definition at line 17303 of file fillattr.cpp. { return (_R(IDS_BITMAPTRANSPFILL)); }

void AttrTextureTranspFill::GetDebugDetails (  StringBase *  Str  )  [virtual]

Output details of this attribute to the Camelot debug tree dialog. Author: Will_Cowling (Xara Group Ltd) <camelotdev@xara.com> Date: 20/07/94 Parameters: Str  - the string containing details of the attribute. [OUTPUTS] Reimplemented from NodeRenderable. Definition at line 17330 of file fillattr.cpp. { #ifdef _DEBUG NodeAttribute::GetDebugDetails( Str ); String_256 TempStr; TempStr._MakeMsg( TEXT("\r\nTexture transparency:\r\n")); (*Str) += TempStr; TempStr._MakeMsg(TEXT("\r\nStart = (#1%ld, #2%ld)"), (*GetStartPoint()).x, (*GetStartPoint()).y); (*Str) += TempStr; TempStr._MakeMsg(TEXT("\r\nEnd = (#1%ld, #2%ld) "), (*GetEndPoint()).x, (*GetEndPoint()).y); (*Str) += TempStr; TempStr._MakeMsg(TEXT("\r\n3rd = (#1%ld, #2%ld) "), (*GetEndPoint2()).x, (*GetEndPoint2()).y); (*Str) += TempStr; #endif }

virtual BOOL AttrTextureTranspFill::IsATranspFill (   )  const [inline, virtual]

Virtual function for determining if the node is an attribute. Author: Will_Cowling (Xara Group Ltd) <camelotdev@xara.com> Date: 13/2/95 Parameters: -  [INPUTS] -  [OUTPUTS] Returns: TRUE if the node is a NodeAttribute, will return TRUE Errors: Reimplemented from NodeAttribute. Definition at line 2340 of file fillattr2.h. { return TRUE; }

virtual BOOL AttrTextureTranspFill::IsSeeThrough (  BOOL  CheckIndirectAttrs  )  [inline, virtual]

Reimplemented from NodeAttribute. Definition at line 2348 of file fillattr2.h. { return ((GetStartTransp() != NULL && *GetStartTransp() != 0) || (GetEndTransp() != NULL && *GetEndTransp() != 0)); }

virtual BOOL AttrTextureTranspFill::IsVisible (   )  [inline, virtual]

Reimplemented from AttrFillGeometry. Definition at line 2329 of file fillattr2.h. { return IsTranspMeshVisible(); }

BOOL AttrTextureTranspFill::NeedsTransparency (   )  const [virtual]

Called. Author: Justin_Flude (Xara Group Ltd) <camelotdev@xara.com> Date: 6/1/95 Parameters: -  [INPUTS] -  [OUTPUTS] Returns: TRUE if this node requires transparency mode to render properly. Errors: - See also: Node::AttachNode Reimplemented from AttrFillGeometry. Definition at line 17261 of file fillattr.cpp. { return TRUE; }

void AttrTextureTranspFill::OnControlDrag (  DocCoord  , FillControl &  , ClickModifiers  )  [virtual]

Reimplemented from AttrBitmapFill. Definition at line 17506 of file fillattr.cpp. { #if !defined(EXCLUDE_FROM_RALPH) // Get the current Control Point Positions DocCoord StartPoint = *GetStartPoint(); DocCoord EndPoint = *GetEndPoint(); DocCoord EndPoint2 = *GetEndPoint2(); DocCoord CentrePoint; DocCoord Drag2Blob; DocCoord Drag3Blob; // Bodge Alert !! // Bitmap fills have a complicated control point system. // The actual control points needed for rendering are the Bottom Left, // Top Left, and Bottom Right points of the bitmap. But on screen the // points seen and moved are the Centre, Middle Right, and Middle Top. // So we need to convert the click points into vitual points before // we start dragging them about. GetBitmapVirtualPoints(StartPoint, EndPoint, EndPoint2, &CentrePoint, &Drag2Blob, &Drag3Blob); INT32 dx, dy; // Which control is being dragged ? switch (DragControl) { case FILLCONTROL_STARTPOINT: // They're dragging the Centre Point dx = CentrePoint.x - Pos.x; dy = CentrePoint.y - Pos.y; // Move the other points relative Drag2Blob.translate(-dx, -dy); Drag3Blob.translate(-dx, -dy); CentrePoint = Pos; break; case FILLCONTROL_ENDPOINT: // If the Constrain key is down then constrain the Angle of the // point, relative to the centre position. if (ClickMods.Constrain) DocView::ConstrainToAngle(CentrePoint, &Pos); if (ClickMods.Adjust) { // Shift is pressed, so lock the aspect ratio of the bitmap mesh double OldLen = CentrePoint.Distance(Drag2Blob); double NewLen = CentrePoint.Distance(Pos); double Ratio = 1.0; if (OldLen == 0) Ratio = 0; else Ratio = NewLen/OldLen; // Calculate the new point based on the aspect ratio Drag3Blob = MakeLineAtAngle(CentrePoint, Pos, 90, INT32(CentrePoint.Distance(Drag3Blob) * Ratio)); } Drag2Blob = Pos; break; case FILLCONTROL_SECONDARYPOINT: // If the Constrain key is down then constrain the Angle of the // point, relative to the centre position. if (ClickMods.Constrain) DocView::ConstrainToAngle(CentrePoint, &Pos); if (ClickMods.Adjust) { // Shift is pressed, so lock the aspect ratio of the bitmap mesh double OldLen = CentrePoint.Distance(Drag3Blob); double NewLen = CentrePoint.Distance(Pos); double Ratio = 1.0; if (OldLen == 0) Ratio = 0; else Ratio = NewLen/OldLen; // Calculate the new point based on the aspect ratio Drag2Blob = MakeLineAtAngle(CentrePoint, Pos, -90, INT32(CentrePoint.Distance(Drag2Blob) * Ratio)); } Drag3Blob = Pos; break; } // Now we have to convert the Vitual Coords back into real // bitmap control points. GetBitmapRealPoints(CentrePoint, Drag2Blob, Drag3Blob, &StartPoint, &EndPoint, &EndPoint2); // Store the new points back in the Fill SetStartPoint(&StartPoint); SetEndPoint(&EndPoint); SetEndPoint2(&EndPoint2); #endif }

void AttrTextureTranspFill::Render (  RenderRegion *  pRender  )  [virtual]

'Renders' a Fractal Fill Transp attribute. Author: Will_Cowling (Xara Group Ltd) <camelotdev@xara.com> Date: 23/8/94 Reimplemented from NodeAttribute. Definition at line 17366 of file fillattr.cpp. { if (GetBitmap() == NULL || GetBitmap()->ActualBitmap == NULL) { if (!RecalcFractal()) return; } pRender->SetTranspFillGeometry((TranspFillAttribute*)GetAttributeValue(), FALSE); }

void AttrTextureTranspFill::RenderControl (  FillControl  Control, BOOL  RenderOn )  [protected, virtual]

Redraws the Fill Control blobs when the selection changes. Author: Will_Cowling (Xara Group Ltd) <camelotdev@xara.com> Date: 26/7/94 Parameters: Control,the  FillControl to redraw [INPUTS] See also: FillControl Reimplemented from AttrFillGeometry. Definition at line 17626 of file fillattr.cpp. { #if !defined(EXCLUDE_FROM_RALPH) DocRect ControlRect; // Ignore if we're not in the tree yet // We may be a tempory clone, or something NodeRenderable* pParent = (NodeRenderable*)FindParent(); if (pParent == NULL) return; if (IsBlobSame(Control)) return; // Ignore if same as the last blob rendered Spread* pSpread = this->FindParentSpread(); DocCoord StartPoint = *GetStartPoint(); DocCoord EndPoint = *GetEndPoint(); DocCoord EndPoint2 = *GetEndPoint2(); DocCoord CentrePoint; DocCoord Drag2Blob; DocCoord Drag3Blob; GetBitmapVirtualPoints(StartPoint, EndPoint, EndPoint2, &CentrePoint, &Drag2Blob, &Drag3Blob); switch (Control) { case FILLCONTROL_STARTPOINT: if (GetStartPoint() != NULL) { // Redraw the Start Point Blob (Camelot.GetBlobManager())->GetBlobRect(CentrePoint, &ControlRect); RenderFillControl(RenderOn, &ControlRect, pSpread, pParent); } break; case FILLCONTROL_ENDPOINT: if (GetEndPoint() != NULL) { // Redraw BOTH End Point Blobs (Camelot.GetBlobManager())->GetBlobRect(Drag2Blob, &ControlRect); RenderFillControl(RenderOn, &ControlRect, pSpread, pParent); } if (GetEndPoint2() != NULL) { (Camelot.GetBlobManager())->GetBlobRect(Drag3Blob, &ControlRect); RenderFillControl(RenderOn, &ControlRect, pSpread, pParent); } break; case FILLCONTROL_SECONDARYPOINT: if (GetEndPoint2() != NULL) { // Redraw BOTH End Point Blobs (Camelot.GetBlobManager())->GetBlobRect(Drag2Blob, &ControlRect); RenderFillControl(RenderOn, &ControlRect, pSpread, pParent); } if (GetEndPoint2() != NULL) { (Camelot.GetBlobManager())->GetBlobRect(Drag3Blob, &ControlRect); RenderFillControl(RenderOn, &ControlRect, pSpread, pParent); } break; } #endif }

void AttrTextureTranspFill::RenderFillBlobs (  RenderRegion *  pRender  )  [virtual]

Renders the grad fills arrow blob when requested to by its selected parent. Author: Will_Cowling (Xara Group Ltd) <camelotdev@xara.com> Date: 13/9/94 Parameters: pRender  - The region to render the blobs to. [INPUTS] Reimplemented from AttrBitmapFill. Definition at line 17389 of file fillattr.cpp. { #if !defined(EXCLUDE_FROM_RALPH) if (!IsVisible()) return; // We're Not in Fill Transparency Mode // Don't bother if this fill is being edited as a copy of it // we be rendered thoughout the drag op if (IsFillBeingEdited()) return; // Ignore this if the mesh is the same as the last one rendered. if (CheckPreviousFillMesh()) return; DocCoord ControlPoints[5]; ControlPoints[FILLCONTROL_STARTPOINT] = (*GetStartPoint()); ControlPoints[FILLCONTROL_ENDPOINT] = (*GetEndPoint()); ControlPoints[FILLCONTROL_SECONDARYPOINT] = (*GetEndPoint2()); // Render a nice pretty Fill Mesh thingy RenderFillMesh(pRender, ControlPoints, SelectionState, 5); // This call was removed by Gerry (2/9/96) as it causes blob problems // If we are removing blobs then force all blobs to be deselected // if ((Camelot.GetBlobManager())->IsRemovingBlobs()) // DeselectAllNoRedraw(); #endif }

void AttrTextureTranspFill::RenderFillMesh (  RenderRegion *  , DocCoord *  , BOOL *  , INT32  NumControlPoints = 0 )  [virtual]

Reimplemented from AttrBitmapFill. Definition at line 17720 of file fillattr.cpp. { #if !defined(EXCLUDE_FROM_RALPH) DocCoord StartPoint = ControlPoints[FILLCONTROL_STARTPOINT]; DocCoord EndPoint = ControlPoints[FILLCONTROL_ENDPOINT]; if (StartPoint == EndPoint) return; if (SelState == NULL) { // If no selection state passed in, then assume // all the points are deselected BOOL Selected[NUMCONTROLPOINTS]; for (INT32 i=0; i< NumControlPoints; i++) { Selected[i] = FALSE; } SelState = Selected; } DocCoord EndPoint2 = ControlPoints[FILLCONTROL_SECONDARYPOINT]; DocCoord Start; DocCoord End; DocCoord End2; // Work out the Virtual positions of the Bitmap Controls GetBitmapVirtualPoints(StartPoint, EndPoint, EndPoint2, &Start, &End, &End2); // Remember what attributes were here before pRender->SaveContext(); // Get the current blob size in Doc Units INT32 BlobSize = (Camelot.GetBlobManager())->GetBlobSize(); // Calculate the Arrow on the End of the Line Path ArrowPath; ArrowPath.Initialise(); DocCoord LineEnd; MakeMeshArrow(&ArrowPath, Start, End, &LineEnd); // Calculate the Arrow on the End of the Line2 Path ArrowPath2; ArrowPath2.Initialise(); DocCoord LineEnd2; MakeMeshArrow(&ArrowPath2, Start, End2, &LineEnd2); // Set the line colours etc as we need them pRender->SetLineWidth(0); pRender->SetLineColour(COLOUR_UNSELECTEDBLOB); pRender->SetFillColour(COLOUR_UNSELECTEDBLOB); // First Draw the Line pRender->SetLineWidth(BlobSize/4); pRender->DrawLine(Start, LineEnd); // Draw the secondary line pRender->DrawLine(Start, LineEnd2); // Render an Arrow at the end of the line pRender->SetLineWidth(0); pRender->SetLineColour(COLOUR_NONE); pRender->DrawPath(&ArrowPath); // and on the end of the secondary line pRender->DrawPath(&ArrowPath2); if (DraggedFill == this) { // If we are being dragged then draw a Parallelgram to // show the shape of the bitmap pRender->SetLineColour(COLOUR_SELECTEDBLOB); pRender->SetFillColour(COLOUR_NONE); Path ParaPath; ParaPath.Initialise(); MakeMeshParallelagram(&ParaPath, Start, End, End2); // Draw the parallelagram pRender->DrawPath(&ParaPath); } // Now Render the blobs on the path // Draw a blob at the start point if (SelState[FILLCONTROL_STARTPOINT]) { // Draw Selected Blob // pRender->SetLineColour(COLOUR_SELECTEDBLOB); pRender->SetLineColour(COLOUR_NONE); pRender->SetFillColour(COLOUR_SELECTEDBLOB); pRender->DrawBlob(Start, BT_SELECTED); } else { // Draw Unselected Blob // pRender->SetLineColour(COLOUR_UNSELECTEDBLOB); pRender->SetLineColour(COLOUR_NONE); pRender->SetFillColour(COLOUR_UNSELECTEDBLOB); pRender->DrawBlob(Start, BT_UNSELECTED); } // Draw a blob at the end point if (SelState[FILLCONTROL_ENDPOINT]) { // Draw Selected Blob // pRender->SetLineColour(COLOUR_SELECTEDBLOB); pRender->SetLineColour(COLOUR_NONE); pRender->SetFillColour(COLOUR_SELECTEDBLOB); pRender->DrawBlob(End, BT_SELECTED); pRender->DrawBlob(End2,BT_SELECTED); } else { // Draw Unselected Blob // pRender->SetLineColour(COLOUR_UNSELECTEDBLOB); pRender->SetLineColour(COLOUR_NONE); pRender->SetFillColour(COLOUR_UNSELECTEDBLOB); pRender->DrawBlob(End, BT_UNSELECTED); pRender->DrawBlob(End2,BT_UNSELECTED); } // Put all the old attributes back pRender->RestoreContext(); #endif }

Node * AttrTextureTranspFill::SimpleCopy (  void   )  [virtual]

This method returns a shallow copy of the node with all Node pointers NULL. The function is virtual, and must be defined for all derived classes. Author: Will_Cowling (Xara Group Ltd) <camelotdev@xara.com> Date: 23/8/94 Returns: A copy of the node, or NULL if memory runs out Errors: If memory runs out when trying to copy, then ERROR is called with an out of memory error and the function returns NULL. Scope: protected Reimplemented from NodeAttribute. Reimplemented in AttrFractalTranspFill, and AttrNoiseTranspFill. Definition at line 17281 of file fillattr.cpp. { AttrTextureTranspFill* NodeCopy = new AttrTextureTranspFill(); if (NodeCopy == NULL) return NULL; CopyNodeContents(NodeCopy); return NodeCopy; }

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

• Kernel/fillattr2.h (r1785/r1708)
• Kernel/fillattr.cpp (r1785/r1771)

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