oppull.cpp

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00001 // $Id: oppull.cpp 1282 2006-06-09 09:46:49Z alex $
00002 /* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE
00003 ================================XARAHEADERSTART===========================
00004  
00005                Xara LX, a vector drawing and manipulation program.
00006                     Copyright (C) 1993-2006 Xara Group Ltd.
00007        Copyright on certain contributions may be held in joint with their
00008               respective authors. See AUTHORS file for details.
00009 
00010 LICENSE TO USE AND MODIFY SOFTWARE
00011 ----------------------------------
00012 
00013 This file is part of Xara LX.
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00067 ARRANGEMENTS FOR CONTRIBUTION OF MODIFICATIONS
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00095 
00096 =================================XARAHEADEREND============================
00097  */
00098 // Implementation of the "Pull onto grid" Op
00099 
00100 /*
00101 */
00102 
00103 #include "camtypes.h"
00104 #include "oppull.h"
00105 
00106 //#include "app.h" - in camtypes.h [AUTOMATICALLY REMOVED]
00107 //#include "phil.h"
00108 //#include "document.h" - in camtypes.h [AUTOMATICALLY REMOVED]
00109 //#include "range.h" - in camtypes.h [AUTOMATICALLY REMOVED]
00110 //#include "docview.h" - in camtypes.h [AUTOMATICALLY REMOVED]
00111 
00112 DECLARE_SOURCE("$Revision: 1282 $");
00113 
00114 CC_IMPLEMENT_DYNCREATE(OpPullOntoGrid,OpTranslateTrans)
00115 
00116 #define new CAM_DEBUG_NEW
00117 
00118 
00119 
00120 /********************************************************************************************
00121 
00122 >   static BOOL OpPullOntoGrid::Init()
00123 
00124     Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
00125     Created:    30/03/95
00126     Inputs:     -
00127     Outputs:    -
00128     Returns:    TRUE if the operation could be successfully initialised 
00129                 FALSE if no more memory could be allocated 
00130     Purpose:    OpPullOntoGrid initialiser method.
00131     Errors:     ERROR will be called if there was insufficient memory to allocate the 
00132                 operation.
00133     SeeAlso:    -
00134 
00135 ********************************************************************************************/
00136 
00137 BOOL OpPullOntoGrid::Init()
00138 {
00139     BOOL registered = RegisterOpDescriptor(
00140                                             0,
00141                                             _R(IDS_PULLONTOGRID),
00142                                             CC_RUNTIME_CLASS(OpPullOntoGrid),
00143                                             OPTOKEN_PULLONTOGRID,
00144                                             OpPullOntoGrid::GetState,
00145                                             0,
00146                                             _R(IDBBL_PULLONTOGRID)
00147                                           );
00148     return registered;
00149 }               
00150 
00151 
00152 
00153 
00154 /********************************************************************************************
00155 
00156 >   static OpState OpPullOntoGrid::GetState(String_256*, OpDescriptor*)
00157 
00158     Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
00159     Created:    30/03/95
00160     Inputs:     ptr to a string to place a description of what went wrong (if it did!)
00161     Outputs:    -
00162     Returns:    The state of the OpPullOntoGrid operation
00163     Purpose:    For finding OpPullOntoGrid's state. 
00164     Errors:     -
00165     SeeAlso:    -
00166 
00167 ********************************************************************************************/
00168 
00169 OpState OpPullOntoGrid::GetState(String_256* UIDescription, OpDescriptor*)
00170 {
00171     OpState OpSt;
00172 
00173     SelRange* pSelRange = GetApplication()->FindSelection();
00174     if (pSelRange != NULL && pSelRange->FindFirst() != NULL)
00175         OpSt.Greyed = FALSE;
00176     else
00177         OpSt.Greyed = TRUE;
00178 
00179     return (OpSt);   
00180 }
00181 
00182 
00183 
00184 
00185 /********************************************************************************************
00186 
00187 >   void OpPullOntoGrid::Do(OpDescriptor* pOpDesc)
00188 
00189     Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
00190     Created:    30/03/95
00191     Inputs:     pOpDesc = ptr to the op descriptor
00192     Outputs:    -
00193     Returns:    -
00194     Purpose:    The pull onto grid op's Do() function.
00195     Errors:     -
00196     SeeAlso:    -
00197 
00198 ********************************************************************************************/
00199 
00200 void OpPullOntoGrid::Do(OpDescriptor* pOpDesc)
00201 {  
00202     DocCoord        Offset;
00203     TransformData   TransData;
00204 
00205     // Set up the transform data
00206     TransData.CentreOfTrans.x   = 0;
00207     TransData.CentreOfTrans.y   = 0;
00208     TransData.StartBlob         = 0;
00209     TransData.LockAspect        = TRUE;
00210     TransData.LeaveCopy         = FALSE;
00211     TransData.ScaleLines        = FALSE;
00212     TransData.TransFills        = TRUE;
00213     TransData.pRange = 0;
00214 
00215     SelRange* pSel = GetApplication()->FindSelection();
00216     if (pSel)
00217     {
00218         // Set up the Offset DocCoord to contain the X and Y translation values
00219         DocRect Bounds = pSel->GetBoundingRect();
00220         DocCoord Offset = Bounds.lo;
00221         DocView::ForceSnapToGrid(Document::GetSelectedSpread(),&Offset);
00222         Offset = Offset - Bounds.lo;
00223 
00224         // Call OpTranslateTrans::DoWithParams() with a ptr to the transform data and a ptr to a DocCoord
00225         // that specs the X and Y offsets of the translation
00226         OpParam temp((void *)&TransData, (void *)&Offset);
00227         DoWithParam(pOpDesc, &temp);
00228     }
00229 }
00230 

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