// $Id: noderect.cpp 1315 2006-06-14 09:51:34Z alex $ /* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE ================================XARAHEADERSTART=========================== Xara LX, a vector drawing and manipulation program. Copyright (C) 1993-2006 Xara Group Ltd. Copyright on certain contributions may be held in joint with their respective authors. See AUTHORS file for details. LICENSE TO USE AND MODIFY SOFTWARE ---------------------------------- This file is part of Xara LX. Xara LX is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation. Xara LX and its component source files are distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. 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Xara Group Ltd, Gaddesden Place, Hemel Hempstead, HP2 6EX, UK. http://www.xara.com/ =================================XARAHEADEREND============================ */ /* */ #include "camtypes.h" #include "noderect.h" // Code headers #include "aw_eps.h" #include "opsmpshp.h" // Resource headers //#include "simon.h" // Put my version Number into the About box DECLARE_SOURCE( "$Revision: 1315 $" ); // Declare class and give details in memory dumps CC_IMPLEMENT_DYNCREATE(NodeRect, NodeSimpleShape) // Declare smart memory handling in Debug builds #define new CAM_DEBUG_NEW /*********************************************************************************************** > NodeRect::NodeRect( Node* ContextNode, AttachNodeDirection Direction, const DocRect& BoundingRect, BOOL Locked = FALSE, BOOL Mangled = FALSE, BOOL Marked = FALSE, BOOL Selected = FALSE, BOOL Renderable = FALSE ) Author: Mario_Shamtani (Xara Group Ltd) Created:22/9/93 Inputs: ContextNode: Pointer to a node which this node is to be attached to. Direction: Specifies the direction in which the node is to be attached to the ContextNode. The values this variable can take are as follows: PREV : Attach node as a previous sibling of the context node NEXT : Attach node as a next sibling of the context node FIRSTCHILD: Attach node as the first child of the context node LASTCHILD : Attach node as a last child of the context node BoundingRect: Bounding rectangle The remaining inputs specify the status of the node: Locked: Is node locked ? Mangled: Is node mangled ? Marked: Is node marked ? Selected: Is node selected ? Purpose: This constructor initialises the nodes flags and links it to ContextNode in the direction specified by Direction. All neccesary tree links are updated. Note: SetUpPath() must be called before the NodeRect is in a state in which it can be used. SeeAlso: SetUpPath Errors: An assertion error will occur if ContextNode is NULL ***********************************************************************************************/ NodeRect::NodeRect(Node* ContextNode, AttachNodeDirection Direction, BOOL Locked, BOOL Mangled, BOOL Marked, BOOL Selected ):NodeSimpleShape(ContextNode, Direction, Locked, Mangled, Marked, Selected ) { } /********************************************************************************************* > NodeRect::NodeRect() Author: Mario_Shamtani (Xara Group Ltd) Created: 22/9/93 Purpose: This constructor creates a NodeRect linked to no other with all status flags false and an uninitialized bounding rectangle. Note: SetUpPath() must be called before the NodeRect is in a state in which it can be used. SeeAlso: SetUpPath **********************************************************************************************/ /* Technical Notes: The default constructor is required so that SimpleCopy will work */ NodeRect::NodeRect(): NodeSimpleShape() { } /*********************************************************************************************** > virtual Node* NodeRect::SimpleCopy() Author: Rik_Heywood (Xara Group Ltd) Created: 26/5/93 Returns: Pointer to a Node Purpose: Makes a copy of all the data in the node ***********************************************************************************************/ Node* NodeRect::SimpleCopy() { // Make a new NodeSimpleShape and then copy things into it NodeRect* NodeCopy = new NodeRect(); if (NodeCopy) CopyNodeContents(NodeCopy); return NodeCopy; } /******************************************************************************************** > virtual String NodeRect::Describe(BOOL Plural, BOOL Verbose = TRUE) Author: Simon_Maneggio (Xara Group Ltd) Created: 25/6/93 Inputs: Plural: Flag indicating if the string description should be plural or singular. Retuns: Description of the object Purpose: To return a description of the NodeRect object in either the singular or the plural. This method is called by the DescribeRange method. The description will always begin with a lower case letter. Errors: A resource exception will be thrown if a problem occurs when loading the string resource. ********************************************************************************************/ String NodeRect::Describe(BOOL Plural, BOOL Verbose) { if (Plural) return(String(_R(IDS_RECTANGLE_DESCRP))); else return(String(_R(IDS_RECTANGLE_DESCRS))); }; /******************************************************************************************** > void NodeRect::PreExportRender(RenderRegion* pRegion) Author: Tim_Browse (Xara Group Ltd) Created: 17/08/94 Inputs: pRegion - the render region we are exporting to. Purpose: Output data required to mark this object as a rectangle as opposed to an arbitrary path. ********************************************************************************************/ void NodeRect::PreExportRender(RenderRegion* pRegion) { #ifdef DO_EXPORT if (pRegion->IsKindOf(CC_RUNTIME_CLASS(ArtWorksEPSRenderRegion))) { // Output "ArtWorks rectangle" token EPSExportDC *pDC = (EPSExportDC *) pRegion->GetRenderDC(); pDC->OutputToken(_T("ar")); pDC->OutputNewLine(); } #endif } /*********************************************************************************************** > virtual void NodeRect::CreateShape(DocRect NewRect) Author: Mario_Shamtani (Xara Group Ltd) , Changed by Rik Created: 22/9/93 Inputs: DocRect - representing the rectangle to be created. Purpose: Creates a rectangle using a path. ***********************************************************************************************/ void NodeRect::CreateShape(DocRect NewRect) { // Copy the rectangle into the parallelogram Parallel[0] = DocCoord(NewRect.lo.x, NewRect.hi.y); Parallel[1] = DocCoord(NewRect.hi.x, NewRect.hi.y); Parallel[2] = DocCoord(NewRect.hi.x, NewRect.lo.y); Parallel[3] = DocCoord(NewRect.lo.x, NewRect.lo.y); // build a path InkPath.FindStartOfPath(); // Start at bottom left corner InkPath.InsertMoveTo(Parallel[0]); InkPath.InsertLineTo(Parallel[1]); InkPath.InsertLineTo(Parallel[2]); InkPath.InsertLineTo(Parallel[3]); InkPath.InsertLineTo(Parallel[0]); // Close the path properly InkPath.CloseSubPath(); } /*********************************************************************************************** > virtual void NodeRect::UpdateShape() Author: Mario_Shamtani (Xara Group Ltd) , Changed by Rik Created: 22/9/93 Purpose: Updates rectangle node to fit the current parallelogram ***********************************************************************************************/ void NodeRect::UpdateShape() { // make sure the path seems to have the correct number of coords in it ENSURE(InkPath.GetNumCoords()==5, "NodeRect::UpdateShape found its path corrupt" ); // Get the array of coords in the path DocCoord* Coords = InkPath.GetCoordArray(); // Update them to what we now have Coords[0] = Parallel[0]; Coords[1] = Parallel[1]; Coords[2] = Parallel[2]; Coords[3] = Parallel[3]; Coords[4] = Parallel[0]; } /******************************************************************************************** > void NodeRect::HandleBlobDrag(DocCoord& PointerPos, Spread* pSpread, INT32 FixedCorner) Author: Mario_Shamtani (Xara Group Ltd) Created: 15/11/93 Inputs: PointerPos - The position the mouse pointer clicked pSpread - the spread that the click was on FixedCorner - The corner of the parallelogram that will stay fixed during the drag Purpose: When a drag is started on one of the paths blobs this is called. It tries to fire up an operation that will perform a drag of all the selected points, including all the EORing of the relavent parts of the curve. If it fails it will inform the user and not bother. ********************************************************************************************/ void NodeRect::HandleBlobDrag(DocCoord& PointerPos, Spread* pSpread, INT32 FixedCorner) { #if !defined(EXCLUDE_FROM_RALPH) OpEditRectangle* pOpRect = new OpEditRectangle; if (pOpRect == NULL) { // Failed to get the memory to do the job TRACEUSER( "Rik", _T("The Node Rect Edit Operation failed to start\n") ); // Inform the person doing the clicking that life is not looking so good InformError(); } else { // Start the drag operation and pass in the Anchor Point to the operation pOpRect->DoDrag(PointerPos, pSpread, this, FixedCorner); } #endif } /******************************************************************************************** > virtual UINT32 NodeRect::GetNodeSize() const Author: Simon_Maneggio (Xara Group Ltd) Created: 6/10/93 Inputs: - Outputs: - Returns: The size of the node in bytes Purpose: For finding the size of the node SeeAlso: Node::GetSubtreeSize ********************************************************************************************/ UINT32 NodeRect::GetNodeSize() const { return (sizeof(NodeRect)); } /******************************************************************************************** > BOOL NodeRect::SnapToCoords(DocCoord* pDocCoord) Author: Rik_Heywood (Xara Group Ltd) Created: 21/11/94 Inputs: pDocCoord - the coord to try and snap to Outputs: pDocCoord - The snapped coord, if it was close enough to any of the magnetic points for a rectangle. Returns: TRUE if it was snapped, FALSE if not Purpose: Snaps the point magnetically to the magnetic coords for a rectangle. These are :- The Centre, The Corners, and the midpoints of its edges. ********************************************************************************************/ BOOL NodeRect::SnapToCoords(DocCoord* pDocCoord) { #if !defined(EXCLUDE_FROM_RALPH) // First try and snap to all the places that the base class snaps for us BOOL IsSnapped = NodeSimpleShape::SnapToCoords(pDocCoord); // if it did not snap in the base class, try the extra points if (IsSnapped==FALSE) { // Try each of the corner of the rectangle for (INT32 i=0; i<4; i++) { if (IsMagneticallyClose(&Parallel[i], pDocCoord)) return TRUE; } } // send the result on return IsSnapped; #else return FALSE; #endif }