// $Id: tranlate.cpp 1282 2006-06-09 09:46:49Z 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============================ */ // Operation for doing an interactive Translation of the selection /* */ #include "camtypes.h" #include "tranlate.h" //#include "docview.h" - in camtypes.h [AUTOMATICALLY REMOVED] //#include "rik.h" //#include "clikdrag.h" // Register my files version number DECLARE_SOURCE("$Revision: 1282 $"); // An implement to match the Declare in the .h file. CC_IMPLEMENT_DYNCREATE(OpTranslateTrans, TransOperation) // This will get Camelot to display the filename and linenumber of any memory allocations // that are not released at program exit #define new CAM_DEBUG_NEW /******************************************************************************************** > OpTranslateTrans::OpTranslateTrans() Author: Rik_Heywood (Xara Group Ltd) Created: 20/7/93 Purpose: Constructor. Does nothing. ********************************************************************************************/ OpTranslateTrans::OpTranslateTrans(): TransOperation() { //Set status line help StatusHelpID = _R(IDS_TRANSLTRANS_STATUS1); StatusHelpID2 = _R(IDS_TRANSLTRANS_STATUS2); CanScaleLines = FALSE; } /******************************************************************************************** > void OpTranslateTrans::InitTransformImmediate(OpParam* pOpParam) Author: Rik_Heywood (Xara Group Ltd) Created: 27/7/94 Inputs: pOpParam - The parameters that were passed into the operation Purpose: Sets up the transform ready for an immediate translation. This is called from DoWithParam() SeeAlso: TransOperation::DoWithParam() ********************************************************************************************/ void OpTranslateTrans::InitTransformImmediate(OpParam* pOpParam) { // Set the initial position StartPos = DocCoord(0,0); RawStartPos = StartPos; MagStartPos = StartPos; // and copy the offset to translate by from Param2 DocCoord* Offset = (DocCoord*)( PVOID(pOpParam->Param2) ); LastPos.x = Offset->x; LastPos.y = Offset->y; OriginalGridOffset.x=0; OriginalGridOffset.y=0; } /******************************************************************************************** > virtual void OpTranslateTrans::InitTransformOnDrag(DocCoord PointerPos, ClickModifiers ClickMods) Author: Rik_Heywood (Xara Group Ltd) Created: 19/7/94 Inputs: PointerPos - The position of the mouse at the start of the drag ClickMods - the keyboard modifiers that were active at the start of the drag Purpose: Sets up the parameters needed to build the transform matrix at the start of the drag. This base class version of this function does nothing. ********************************************************************************************/ void OpTranslateTrans::InitTransformOnDrag(DocCoord PointerPos, ClickModifiers ClickMods) { // make a note of the current mouse position LastPos = PointerPos; // Record the offset from the mouse pos to the grid OriginalGridOffset = GetStartPos(); DocView::ForceSnapToGrid(StartSpread, &OriginalGridOffset); OriginalGridOffset = GetStartPos() - OriginalGridOffset; } /******************************************************************************************** > virtual void OpTranslateTrans::UpdateTransformOnDrag(DocCoord PointerPos, Spread* pSpread, ClickModifiers& ClickMods) Author: Rik_Heywood (Xara Group Ltd) Created: 19/7/94 Inputs: PointerPos - The latest position of the mouse Purpose: Does the calculations needed when the mouse moves to keep all the params needed to build the rotation matrix up to date. ********************************************************************************************/ void OpTranslateTrans::UpdateTransformOnDrag(DocCoord PointerPos, Spread* pSpread, ClickModifiers& ClickMods) { if (!ClickMods.Constrain) { // Apply snapping to the pointer pos // First apply magnetic snapping alone if (MagneticGripPoint && DocView::SnapSelected(pSpread, &PointerPos, TRUE, FALSE)) { // Magnetic snapping worked! } else { // Magnetic snapping failed! // If magnetic snapping failed then try grid snapping // on the adjusted coordinate if (ClickMods.Alternative1) { PointerPos = PointerPos - OriginalGridOffset; DocView::SnapSelected(pSpread, &PointerPos, FALSE, TRUE); PointerPos = PointerPos + OriginalGridOffset; } else { DocCoord Offset = PointerPos - LastPos; DocRect Bounds( BoundingData.x, BoundingData.y, BoundingData.x+BoundingData.Width, BoundingData.y+BoundingData.Height ); Bounds.lo = Bounds.lo + Offset; Bounds.hi = Bounds.hi + Offset; DocRect SnappedBounds = Bounds; DocView::SnapSelected(pSpread,&SnappedBounds,LastRawPos,RawPos); PointerPos = PointerPos + (SnappedBounds.lo - Bounds.lo); } } } // Work out the offset from the last mouse pos INT32 dx = PointerPos.x - LastPos.x; INT32 dy = PointerPos.y - LastPos.y; // Add the offset into the structure BoundingData.x += dx; BoundingData.y += dy; BoundingData.XYChanged = TRUE; // Make a mental note of the current position LastPos = PointerPos; // Update the current spread (must do this if CanChangeSpread returns TRUE) CurrentSpread = pSpread; } /******************************************************************************************** > virtual BOOL OpTranslateTrans::CanChangeSpread() Author: Phil_Martin (Xara Group Ltd) Created: 05/June/2006 Inputs: - Outputs: - Returns: TRUE if this transform allows the drag to be transferred to another spread Purpose: Tell the baseclass functions whether to draw drag feedback only on the start spread or to allow drag rendering to be done on other spreads too. ********************************************************************************************/ BOOL OpTranslateTrans::CanChangeSpread() { return TRUE; } /******************************************************************************************** > void OpTranslateTrans::BuildMatrix() Author: Rik_Heywood (Xara Group Ltd) Created: 19/7/94 Purpose: Builds the transform matrix required to rotate the selection about the point CentreOfRot by the required number of degrees ********************************************************************************************/ void OpTranslateTrans::BuildMatrix() { // Build a translation matrix by takeing the offset from the last mouse position // to the start mouse position Transform = Matrix(LastPos.x-GetStartPos().x, LastPos.y-GetStartPos().y); } /******************************************************************************************** > virtual BOOL OpTranslateTrans::ShouldPointerBeOffset() Author: Rik_Heywood (Xara Group Ltd) Created: 13/9/94 Returns: FALSE Purpose: Tells the base class of the operation that we want our mouse coords to be left alone ********************************************************************************************/ BOOL OpTranslateTrans::ShouldPointerBeOffset() { return FALSE; } /******************************************************************************************** > virtual void OpTranslateTrans::ConstrainDrag(DocCoord* PointerPos) Author: Rik_Heywood (Xara Group Ltd) Created: 19/7/94 Inputs: PointerPos - The current position of the mouse that needs to be constrained Outputs: PointerPos - The position of the mouse after it has been constrained Purpose: Will constrain the mouse position to lie along rays from the centre of rotation at the constrain angle apart (45 degrees by default) ********************************************************************************************/ void OpTranslateTrans::ConstrainDrag(DocCoord* PointerPos) { // Lock the mouse to move along the axis or diagonally DocCoord Blobby = GetStartPos(); DocView::ConstrainToAngle(Blobby, PointerPos); } /******************************************************************************************** > BOOL OpTranslateTrans::Declare() Author: Rik_Heywood (Xara Group Ltd) Created: 5/7/93 Returns: TRUE if all went OK, False otherwise Purpose: Adds the operation to the list of all known operations ********************************************************************************************/ BOOL OpTranslateTrans::Declare() { return (RegisterOpDescriptor(0, _R(IDS_SELECTOR_MOVE), CC_RUNTIME_CLASS(OpTranslateTrans), OPTOKEN_TRANSLATE, TransOperation::GetState)); }