AttrConicalFill Class Reference

Conical Fill Attribute class. More...

#include <fillattr2.h>

Inheritance diagram for AttrConicalFill:

List of all members.

Public Member Functions
	AttrConicalFill ()
	AttrConicalFill (Node *ContextNode, AttachNodeDirection Direction, BOOL Locked=FALSE, BOOL Mangled=FALSE, BOOL Marked=FALSE, BOOL Selected=FALSE)
virtual void	Transform (TransformBase &)
	Transform a grad fill attribute by moving the start and end points.
virtual BOOL	CanTransform ()
	Indicate that this attribute can be transformed.
virtual void	TransformSelectedControlPoints (TransformBase &, BOOL *isARampBlob=NULL)
	Transform a grad fill attribute by moving the selected control points.
virtual void	RenderFillBlobs (RenderRegion *pRender)
virtual void	RenderFillMesh (RenderRegion *, DocCoord *, BOOL *, INT32 NumControlPoints=0)
virtual void	OnControlDrag (DocCoord, FillControl &, ClickModifiers)
virtual AttributeValue *	GetAttributeValue ()=0
virtual DocRect	GetBlobBoundingRect ()
	Calculates the bounding rectangle of the attrs blobs.This should always be calculated on the fly as the view scale can change without the attr knowing, giving an incorrect result.
virtual FillControl	CheckForControlHit (DocCoord &)
	Check to see if a click was on a Fill Control Point.
virtual FillControl	TestColourDrop (AttrColourDrop *)
	Check to see which colour will be changed if dropped at this point.
virtual BOOL	IsAGradFill () const
	Virtual function for determining if the node is an attribute.
virtual AttrFillGeometry *	DoColourDrop (AttrColourDrop *)
	Does colour drop onto conical fills.
virtual BOOL	NeedsToRenderAtEachBrushStroke () const
	So that don't have to keep re-rendering attributes whilst drawing a brush, this identifies whether or not the attribute need to be rendered at each step, e.g. radial fills.
virtual INT32	GetNumberOfControlPoints ()
Protected Member Functions
virtual void	ValidateAttributeValue ()
	Makes sure the Coords of the Fill are sensible.
virtual void	RenderControl (FillControl, BOOL)
	Redraws the Fill Control blobs when the selection changes.
virtual double	FindRampPoint (DocCoord &dc, DocCoord &StartPoint, DocCoord &EndPoint)
	Gives the value (0 - 1) of the given dc - bearing in mind the start point is the centre of the conical fill and end point is the start point on the conical curve.

---

Detailed Description

Conical Fill Attribute class.

Author:

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

Date:

18/07/94

See also:

ConicalFillAttribute

Definition at line 1087 of file fillattr2.h.

---

Constructor & Destructor Documentation

AttrConicalFill::AttrConicalFill (   )  [inline]

Definition at line 1092 of file fillattr2.h. : AttrFillGeometry() {}

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

Definition at line 1093 of file fillattr2.h. : AttrFillGeometry(ContextNode, Direction, Locked, Mangled, Marked, Selected) {}

---

Member Function Documentation

BOOL AttrConicalFill::CanTransform (   )  [virtual]

Indicate that this attribute can be transformed. Author: Will_Cowling (Xara Group Ltd) <camelotdev@xara.com> Date: 23/8/94 Returns: TRUE => transform this attribute. See also: NodeRenderable::CanTransform Reimplemented from NodeRenderable. Definition at line 8536 of file fillattr.cpp. { return TRUE; }

FillControl AttrConicalFill::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 AttrFillGeometry. Definition at line 8556 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; // Get the current control positions DocCoord CentrePoint = *GetStartPoint(); DocCoord EndColBlob = *GetEndPoint(); DocCoord StartColBlob = MakeLineAtAngle(CentrePoint, EndColBlob, 180); // 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_DRAGPOINT; // Get the rectangle around the Start Colour Control Point (Camelot.GetBlobManager())->GetBlobRect(StartColBlob, &BlobRect); // See if the Click Position is within the rectangle if ( BlobRect.ContainsCoord(ClickPos) ) HitControl = FILLCONTROL_STARTPOINT; // Get the rectangle around the End Colour Control Point (Camelot.GetBlobManager())->GetBlobRect(EndColBlob, &BlobRect); // See if the Click Position is within the rectangle if ( BlobRect.ContainsCoord(ClickPos) ) HitControl = FILLCONTROL_ENDPOINT; // check the fill ramp blobs if (HitControl == FILLCONTROL_NULL) { // do we have a fill ramp ? if (GetColourRamp()) { // ColourRamp * pRamp = GetColourRamp(); // check for a hit return AttrFillGeometry::CheckForControlHit(ClickPos); } else { // check the position on the fill ramp double d = FindRampPoint(ClickPos, *GetStartPoint(), *GetEndPoint()); if (d > 0 && d < 1) { return FILLCONTROL_RAMPPOINT; } } } return HitControl; #else return FILLCONTROL_NULL; #endif }

AttrFillGeometry * AttrConicalFill::DoColourDrop (  AttrColourDrop *  ColDrop  )  [virtual]

Does colour drop onto conical fills. Author: David_McClarnon (Xara Group Ltd) <camelotdev@xara.com> Date: 27/10/99 Reimplemented from AttrFillGeometry. Definition at line 8627 of file fillattr.cpp. { AttrFillGeometry* NewFill; DocColour DroppedColour = *ColDrop->GetStartColour(); // First test to see which colour we should change FillControl ControlHit = TestColourDrop(ColDrop); if (ControlHit == FILLCONTROL_NULL) { // No Control points hit, so make a flat fill instead NewFill = new AttrFlatColourFill; if (NewFill == NULL) return NULL; // and use the mutants colour NewFill->SetStartColour(&DroppedColour); BOOL InSelection = ColDrop->IsObjectSelected(); if (InSelection && GetApplication()->GetBlobManager()->GetCurrentInterest().Fill && IsVisible() ) { BOOL UniqueFill = TRUE; AttrFillGeometry* pAttr = FindFirstSelectedAttr(); while (pAttr != NULL) { if (pAttr != this && GetAttributeType() == pAttr->GetAttributeType()) { if ( IsMeshSame((FillGeometryAttribute*)GetAttributeValue(), (FillGeometryAttribute*)pAttr->GetAttributeValue()) ) { UniqueFill = FALSE; break; } } // Move onto the next attr pAttr = FindNextSelectedAttr(); } /* if (UniqueFill) RenderFillBlobs(); */ } return NewFill; } if (FindParent() && FindParent()->IsCompound()) { if (ColDrop->GetObjectDroppedOn() && !(ColDrop->GetObjectDroppedOn()->IsCompound()) && ColDrop->IsObjectSelected()) { // If we are dropping inside a group, then we'll need to remove // the blobs if this fill is applied to the whole group // RenderFillBlobs(); } } // Make a copy of this Fill to change NewFill = (AttrFillGeometry*)this->SimpleCopy(); if (NewFill == NULL) return NULL; if (!NewFill->ChangeControlColour(DroppedColour, ControlHit, ColDrop)) { delete NewFill; return NULL; } // invalidate the region in the document & render the fill blobs Document * pDoc = Document::GetCurrent(); if (pDoc) pDoc->ForceRedraw(FindParentSpread(), GetBlobBoundingRect(), FALSE, this->FindParent()); // Return the Mutated Fill return NewFill; }

double AttrConicalFill::FindRampPoint (  DocCoord &  dc, DocCoord &  StartPoint, DocCoord &  EndPoint )  [protected, virtual]

Gives the value (0 - 1) of the given dc - bearing in mind the start point is the centre of the conical fill and end point is the start point on the conical curve. Author: David_McClarnon (Xara Group Ltd) <camelotdev@xara.com> Date: 26/10/99 Returns: - Reimplemented from AttrFillGeometry. Definition at line 8906 of file fillattr.cpp. { //get the dot product DocCoord Centre((StartPoint.x + EndPoint.x) / 2, (StartPoint.y + EndPoint.y) / 2); double dStartX = StartPoint.x; double dStartY = StartPoint.y; double dEndX = EndPoint.x; double dEndY = EndPoint.y; double dVecX = dEndX - dStartX; double dVecY = dEndY - dStartY; // calculate the distance between the point and the centre point double ddX = dc.x - StartPoint.x; double ddY = dc.y - StartPoint.y; double DistToPoint = sqrt((ddX * ddX) + (ddY * ddY)); // normalise the vector double DistToEndPoint = sqrt((dVecX * dVecX) + (dVecY * dVecY)); double dRMod = 1/DistToEndPoint; dVecX *= dRMod; dVecY *= dRMod; double dToPointX = ((double)dc.x) - dStartX; double dToPointY = ((double)dc.y) - dStartY; dRMod = 1/sqrt((dToPointX * dToPointX) + (dToPointY * dToPointY)); dToPointX *= dRMod; dToPointY *= dRMod; double dot = (dToPointX * dVecX) + (dToPointY * dVecY); // do the 90 degree dot product as well since we need to know // whether the point is over the blob itself, or over its mirror // image double dot90 = (-dToPointY * dVecX) + (dToPointX * dVecY); if (dot > 1.0) dot = 1.0; if (dot < -1.0) dot = -1.0; // get the angle double Angle = acos(dot) * 180.0 / 3.142; double Retn = (180.0 - Angle) / 180.0; double dBlobSize = (double)(Camelot.GetBlobManager())->GetBlobSize(); // is the point in range ? if (fabs(DistToPoint - DistToEndPoint) < dBlobSize && dot90 < 0) { return Retn; } return -1; }

virtual AttributeValue* AttrConicalFill::GetAttributeValue (   )  [pure virtual]

Implements AttrFillGeometry. Implemented in AttrConicalColourFill, and AttrConicalTranspFill.

DocRect AttrConicalFill::GetBlobBoundingRect (   )  [virtual]

Calculates the bounding rectangle of the attrs blobs.This should always be calculated on the fly as the view scale can change without the attr knowing, giving an incorrect result. Author: Will_Cowling (Xara Group Ltd) <camelotdev@xara.com> Date: 28/7/94 Returns: DocRect - The rectangle that contains all the attrs selection blobs. Reimplemented from AttrFillGeometry. Definition at line 9043 of file fillattr.cpp. { #if !defined(EXCLUDE_FROM_RALPH) // Optimisation. If there is currently no interest in Fill Blobs // and this fill is not being Dragged (Fill blobs are turned off during // a fill drag), then we needn't bother doing anything. if ( (!GetApplication()->GetBlobManager()->GetCurrentInterest(TRUE).Fill || !IsVisible()) && DraggedFill != this ) return DocRect(0,0, 0,0); // Get the Start and End Points DocCoord StartPoint = *GetStartPoint(); DocCoord EndPoint = *GetEndPoint(); DocCoord EndPoint2 = MakeLineAtAngle(StartPoint, EndPoint, 180); DocRect StartBlobRect; DocRect EndBlobRect; // Get the bounds of the funny semi-circle mesh thingy DocRect BoundingRect = GetMeshEllipseBounds(StartPoint, EndPoint); // Get the Bounding rect of the Fill Line, including the Blobs on the ends (Camelot.GetBlobManager())->GetBlobRect(BoundingRect.lo, &StartBlobRect); (Camelot.GetBlobManager())->GetBlobRect(BoundingRect.hi, &EndBlobRect); // Now include the Bottom Left and Top Right of each blob in the Bounds. // We have to do it like this to make sure that the DocRect's coords // are valid. ie. The Hi's are Higher than the Lo's. BoundingRect.IncludePoint(StartBlobRect.lo); BoundingRect.IncludePoint(StartBlobRect.hi); BoundingRect.IncludePoint(EndBlobRect.lo); BoundingRect.IncludePoint(EndBlobRect.hi); DocCoord Temp = MakeLineAtAngle(EndPoint, StartPoint, -90); IncludeArrowHead(&BoundingRect, Temp, EndPoint); // and return it return BoundingRect; #else return DocRect(0,0, 0,0); #endif }

virtual INT32 AttrConicalFill::GetNumberOfControlPoints (   )  [inline, virtual]

Reimplemented from AttrFillGeometry. Definition at line 1126 of file fillattr2.h. { return 2; }

virtual BOOL AttrConicalFill::IsAGradFill (   )  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 1118 of file fillattr2.h. { return TRUE; }

virtual BOOL AttrConicalFill::NeedsToRenderAtEachBrushStroke (   )  const [inline, virtual]

So that don't have to keep re-rendering attributes whilst drawing a brush, this identifies whether or not the attribute need to be rendered at each step, e.g. radial fills. Author: Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com> Date: 29/11/99 Parameters: -  [INPUTS] -  [OUTPUTS] Returns: TRUE if this attribute should be rendered at every step of a brush stroke Errors: See Also; Brush code (ndbrshmk.cpp) Reimplemented from NodeAttribute. Definition at line 1122 of file fillattr2.h. { return TRUE;}

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

Reimplemented from AttrFillGeometry. Definition at line 8796 of file fillattr.cpp. { // Get the current Control Point Positions DocCoord StartPoint = *GetStartPoint(); DocCoord EndPoint = *GetEndPoint(); INT32 dx, dy; switch (DragControl) { case FILLCONTROL_DRAGPOINT: // They're dragging the Centre Point dx = StartPoint.x - Pos.x; dy = StartPoint.y - Pos.y; // Move the other points relative EndPoint.translate(-dx, -dy); SetEndPoint(&EndPoint); SetStartPoint(&Pos); break; case FILLCONTROL_STARTPOINT: // If the Constrain key is down then constrain the Angle of the // point, relative to the centre. if (ClickMods.Constrain) DocView::ConstrainToAngle(StartPoint, &Pos); { DocCoord coord( MakeLineAtAngle( StartPoint, Pos, 180 ) ); SetEndPoint( &coord ); } break; case FILLCONTROL_ENDPOINT: // If the Constrain key is down then constrain the Angle of the // point, relative to the centre. if (ClickMods.Constrain) DocView::ConstrainToAngle(StartPoint, &Pos); SetEndPoint(&Pos); break; default: // is the hit point a ramp point ? if (ISA_RAMPINDEX(DragControl)) { FillRamp *pRamp = GetFillRamp(); if (pRamp) { float t = (float)FindRampPoint(Pos, *GetStartPoint(), *GetEndPoint()); if (t > 0 && t < 1.0) { FillControl NewDragControl = pRamp->SetPosition(DragControl, t); if (NewDragControl != DragControl) { DragControl = NewDragControl; } Document * pDoc = Document::GetCurrent(); if (pDoc) { Spread * pSpread = (Spread *)FindParent(CC_RUNTIME_CLASS(Spread)); if (pSpread) { if (AllowRampRedraw) { pDoc->ForceRedraw(pSpread, GetBlobBoundingRect(), FALSE, this->FindParent()); } } else { pSpread = Document::GetSelectedSpread(); if (pSpread) { if (AllowRampRedraw) { pDoc->ForceRedraw(pSpread, GetBlobBoundingRect(), FALSE, this->FindParent()); } } } } } } } break; } }

void AttrConicalFill::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 8728 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 = MakeLineAtAngle(StartPoint, EndPoint, 180); switch (Control) { case FILLCONTROL_DRAGPOINT: // Redraw the Centre Point Blob (Camelot.GetBlobManager())->GetBlobRect(StartPoint, &ControlRect); break; case FILLCONTROL_STARTPOINT: // Redraw the Start Colour Blob (Camelot.GetBlobManager())->GetBlobRect(EndPoint2, &ControlRect); break; case FILLCONTROL_ENDPOINT: // Redraw the End Colour Blob (Camelot.GetBlobManager())->GetBlobRect(EndPoint, &ControlRect); break; } if (ISA_RAMPINDEX(Control)) { FillRamp* pRamp = GetFillRamp(); if (pRamp) { DocCoord point = pRamp->GetGeometryCoord(ATTRVALUE(), Control); (Camelot.GetBlobManager())->GetBlobRect(point, &ControlRect, TRUE); } } // Redraw the rectangle we calculated above RenderFillControl(RenderOn, &ControlRect, pSpread, pParent); #endif }

virtual void AttrConicalFill::RenderFillBlobs (  RenderRegion *  pRender  )  [inline, virtual]

Reimplemented from AttrFillGeometry. Reimplemented in AttrConicalColourFill, and AttrConicalTranspFill. Definition at line 1107 of file fillattr2.h. {}

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

Reimplemented from AttrFillGeometry. Definition at line 9101 of file fillattr.cpp. { #if !defined(EXCLUDE_FROM_RALPH) if (AllowRampRedraw == FALSE) { FillRamp *pRamp = GetFillRamp(); if (pRamp) { pRamp->RenderSelectedBlob (ATTRVALUE(), pRender); } return; } DocCoord Start = ControlPoints[FILLCONTROL_STARTPOINT]; DocCoord End = ControlPoints[FILLCONTROL_ENDPOINT]; if (Start == End) 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 End2 = MakeLineAtAngle(Start, End, 180); // 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; DocCoord Temp = MakeLineAtAngle(End, Start, -90); MakeMeshArrow(&ArrowPath, Temp, End, &LineEnd); // This will have also calculated a point for us to draw // the line to, so we don't try and draw though the arrow head. Path EllipsePath; EllipsePath.Initialise(); MakeMeshSemiCircle(&EllipsePath, Start, End, LineEnd); // Set the line colours etc as we need them pRender->SetLineColour(COLOUR_UNSELECTEDBLOB); pRender->SetFillColour(COLOUR_UNSELECTEDBLOB); // First Draw the Line pRender->SetFillColour(COLOUR_NONE); if (DraggedFill == this) { if (AllowBoundsRedraw) { // If we are being dragged, then draw some lines to show the // fill angle pRender->DrawLine(Start, End); pRender->DrawLine(Start, End2); } } // Render a Circle pRender->SetLineWidth(BlobSize/4); pRender->DrawPath(&EllipsePath); // Render an Arrow at the end of the line pRender->SetLineWidth(0); pRender->SetLineColour(COLOUR_NONE); pRender->SetFillColour(COLOUR_UNSELECTEDBLOB); pRender->DrawPath(&ArrowPath); // Now Render the blobs on the path // pRender->SetLineColour(COLOUR_UNSELECTEDBLOB); pRender->SetLineColour(COLOUR_NONE); pRender->SetFillColour(COLOUR_UNSELECTEDBLOB); pRender->DrawBlob(Start, BT_UNSELECTED); // Draw a blob at the start 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); } else { // Draw Unselected Blob // pRender->SetLineColour(COLOUR_UNSELECTEDBLOB); pRender->SetLineColour(COLOUR_NONE); pRender->SetFillColour(COLOUR_UNSELECTEDBLOB); pRender->DrawBlob(End, BT_UNSELECTED); } // Draw a blob at the end point if (SelState[FILLCONTROL_STARTPOINT]) { // Draw Selected Blob // pRender->SetLineColour(COLOUR_SELECTEDBLOB); pRender->SetLineColour(COLOUR_NONE); pRender->SetFillColour(COLOUR_SELECTEDBLOB); pRender->DrawBlob(End2, BT_SELECTED); } else { // Draw Unselected Blob // pRender->SetLineColour(COLOUR_UNSELECTEDBLOB); pRender->SetLineColour(COLOUR_NONE); pRender->SetFillColour(COLOUR_UNSELECTEDBLOB); pRender->DrawBlob(End2, BT_UNSELECTED); } // now render any ramp blobs FillRamp *pRamp = GetFillRamp(); if (pRamp) pRamp->RenderRampBlobs(ATTRVALUE(), pRender, NULL); // Put all the old attributes back pRender->RestoreContext(); #endif }

FillControl AttrConicalFill::TestColourDrop (  AttrColourDrop *  ColDrop  )  [virtual]

Check to see which colour will be changed if dropped at this point. Author: Will_Cowling (Xara Group Ltd) <camelotdev@xara.com> Date: 8/2/95 Reimplemented from AttrFillGeometry. Definition at line 5492 of file fillattr.cpp. { // So, where was it dropped (or where will it be dropped) DocCoord DropPoint = ColDrop->GetDropPoint(); // Look to see if the DropPoint is over any of the Fill Control Points FillControl ControlHit = CheckForControlHit(DropPoint); // If it hit one of our control points, then use that if (ControlHit != FILLCONTROL_NULL) return ControlHit; // It didn't hit any of our control points, so if the drop is over // the object then we'll make a guess as to which control point // the user would like to change, depending on which area of the // object the pointer is over. // First make sure we're actually over an object NodeRenderableInk* pParentObject = ColDrop->GetObjectDroppedOn(); if (pParentObject == NULL) return FILLCONTROL_NULL; // We're not over any object // Make sure this fill type has some Control Points if (GetStartPoint() == NULL || GetEndPoint() == NULL) return FILLCONTROL_NULL; DocCoord StartPoint = *GetStartPoint(); DocCoord EndPoint = *GetEndPoint(); // Get the angle of lines joining the Start and End points, // and also the Start and Drop points. (And make them 0 to 360). ANGLE LineAngle = CalcLineAngle(StartPoint, EndPoint) + 180; ANGLE DropAngle = CalcLineAngle(StartPoint, DropPoint) + 180; // Get the difference between the two angles ANGLE Diff = DropAngle - LineAngle; // and ensure we always get use the shortest path if (Diff >= 180) Diff -= 360; if (Diff <= -180) Diff += 360; TRACEUSER( "Mike", _T("LineAngle = %f\n"),LineAngle.MakeDouble()); TRACEUSER( "Mike", _T("DropAngle = %f\n"),DropAngle.MakeDouble()); TRACEUSER( "Mike", _T("Diff = %f\n"),Diff.MakeDouble()); // check for a colour drop on the line double d = FindRampPoint(DropPoint, *GetStartPoint(), *GetEndPoint()); if (d >= 0 && d <= 1.0) { return FILLCONTROL_RAMPPOINT; } // If the difference is greater the +-90, then set the start colour if (Diff <= 90 && Diff > -90) ControlHit = FILLCONTROL_ENDPOINT; else ControlHit = FILLCONTROL_STARTPOINT; return ControlHit; }

void AttrConicalFill::Transform (  TransformBase &  Trans  )  [virtual]

Transform a grad fill attribute by moving the start and end points. Author: Will_Cowling (Xara Group Ltd) <camelotdev@xara.com> Date: 23/8/94 Parameters: Trans  - the transform object to apply to this attribute. [INPUTS] See also: NodeRenderable::Transform Reimplemented from NodeRenderable. Definition at line 8466 of file fillattr.cpp. { if ( Trans.TransFills ) { Trans.Transform( GetStartPoint(), 1); Trans.Transform( GetEndPoint(), 1); // ValidateAttributeValue(); } }

void AttrConicalFill::TransformSelectedControlPoints (  TransformBase &  Trans, BOOL *  isARampBlob = NULL )  [virtual]

Transform a grad fill attribute by moving the selected control points. Author: Will_Cowling (Xara Group Ltd) <camelotdev@xara.com> Date: 23/8/94 Parameters: Trans  - the transform object to apply to this attribute. [INPUTS] See also: NodeRenderable::Transform Reimplemented from AttrFillGeometry. Definition at line 8489 of file fillattr.cpp. { #if !defined(EXCLUDE_FROM_RALPH) if ( Trans.TransFills ) { ClickModifiers ClickMods; /* = ClickModifiers::GetClickModifiers();*/ ClickMods.Adjust = TRUE; if (GetStartPoint() && IsSelected(FILLCONTROL_STARTPOINT)) { DocCoord Pos = *GetStartPoint(); Trans.Transform( &Pos, 1); FillControl Pt = FILLCONTROL_DRAGPOINT; OnControlDrag(Pos, Pt, ClickMods); } if (GetEndPoint() && IsSelected(FILLCONTROL_ENDPOINT)) { DocCoord Pos = *GetEndPoint(); Trans.Transform( &Pos, 1); FillControl End = FILLCONTROL_ENDPOINT; OnControlDrag(Pos, End, ClickMods); } // CGS - wo, lets check the fill ramp as well .... TransformSelectedFillRampControlPoints (Trans, ClickMods, isARampBlob); } #endif }

void AttrConicalFill::ValidateAttributeValue (   )  [protected, virtual]

Makes sure the Coords of the Fill are sensible. Author: Will_Cowling (Xara Group Ltd) <camelotdev@xara.com> Date: 11/8/94 Returns: - Reimplemented from AttrFillGeometry. Definition at line 8982 of file fillattr.cpp. { #if !defined(EXCLUDE_FROM_RALPH) if ((*GetStartPoint()) != DocCoord(0,0) && (*GetEndPoint()) != DocCoord(0,0)) return; // Make some defaults DocRect AttrBounds = DocRect(0,0,0,0); INT32 Width = DEFAULT_FILLWIDTH; INT32 Height = DEFAULT_FILLHEIGHT; // Are we an Orphan ? if (FindParent() != NULL) { // Nope, so we can use Daddies Bounding Box SelRange* Selected = GetApplication()->FindSelection(); if (Selected == NULL || Selected->Count() <= 1) AttrBounds = ((NodeRenderableBounded*)FindParent())->GetBoundingRect(TRUE); else AttrBounds = Selected->GetBoundingRect(); Width = AttrBounds.Width(); Height = AttrBounds.Height(); } // If the StartPoint is 'NULL' then make all points sensible if ((*GetStartPoint()) == DocCoord(0,0)) { // Start in the middle DocCoord temp = CentreOf(AttrBounds); SetStartPoint(&temp); // End on the Middle Right temp = DocCoord((*GetStartPoint()).x + (Width/2), (*GetStartPoint()).y); SetEndPoint(&temp); } // If the EndPoint is 'NULL' then make end points sensible if ((*GetEndPoint()) == DocCoord(0,0)) { DocCoord temp = DocCoord((*GetStartPoint()).x + (Width/2), (*GetStartPoint()).y); SetEndPoint(&temp); } #endif }

---

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

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

---