452 lines
10 KiB
C++
452 lines
10 KiB
C++
//========= Copyright © 1996-2005, Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//=============================================================================//
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#include "stdafx.h"
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#include "MapDoc.h"
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#include "MapView2D.h"
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#include "MapView3D.h"
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#include "Tool3D.h"
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#include "hammer_mathlib.h"
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#include "vgui/Cursor.h"
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// memdbgon must be the last include file in a .cpp file!!!
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#include <tier0/memdbgon.h>
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#pragma warning(disable:4244)
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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Tool3D::Tool3D(void)
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{
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m_vPlaneNormal.Init();
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m_vPlaneOrigin.Init();
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m_bIsTranslating = false;
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for ( int i=0;i<2; i++ )
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{
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m_bMouseDown[i] = false;
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m_bMouseDragged[i] = false;
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m_vMouseStart[i].Init();
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}
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m_vMousePos.Init();
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}
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void Tool3D::StartTranslation( CMapView *pView, const Vector2D &vClickPoint, bool bUseDefaultPlane )
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{
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if ( bUseDefaultPlane )
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{
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Vector vecHorz, vecVert,vecThird;
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pView->GetBestTransformPlane( vecHorz, vecVert,vecThird );
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SetTransformationPlane( vec3_origin, vecHorz, vecVert, vecThird );
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}
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m_vTranslation.Init();
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ProjectTranslation( pView, vClickPoint, m_vTranslationStart, 0 );
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m_bIsTranslating = true;
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m_pDocument->UpdateAllViews( MAPVIEW_UPDATE_TOOL );
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}
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bool Tool3D::UpdateTranslation(CMapView *pView, const Vector2D &vPoint, UINT nFlags)
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{
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Vector vTransform;
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ProjectTranslation( pView, vPoint, vTransform, 0 );
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vTransform -= m_vTranslationStart;
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return UpdateTranslation( vTransform, nFlags );
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}
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bool Tool3D::UpdateTranslation(const Vector &vUpdate, UINT flags /* = 0 */)
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{
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if ( m_vTranslation == vUpdate )
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return false;
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m_vTranslation = vUpdate;
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m_pDocument->UpdateAllViews( MAPVIEW_UPDATE_TOOL );
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return true;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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// Input : bSave -
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//-----------------------------------------------------------------------------
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void Tool3D::FinishTranslation(bool bSave)
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{
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m_bIsTranslating = false;
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if ( bSave )
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{
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// assume the tool changed an object
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m_pDocument->UpdateAllViews( MAPVIEW_UPDATE_OBJECTS );
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}
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else
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{
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// just update the tool
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m_pDocument->UpdateAllViews( MAPVIEW_UPDATE_TOOL );
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}
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}
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void Tool3D::TranslatePoint(Vector& vPos)
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{
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vPos += m_vTranslation; // most simple translation
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}
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int Tool3D::HitTest(CMapView *pView, const Vector &vecWorld, bool bTestHandles)
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{
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Vector2D vClient;
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pView->WorldToClient( vClient, vecWorld );
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return HitTest( pView, vClient, bTestHandles );
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}
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bool Tool3D::HitRect(CMapView *pView, const Vector2D &vPoint, const Vector &vCenter, int extent )
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{
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Vector2D vClientCenter;
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pView->WorldToClient( vClientCenter, vCenter );
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if ( vPoint.x < (vClientCenter.x-extent) || vPoint.x > ( vClientCenter.x+extent) )
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return false;
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if ( vPoint.y < (vClientCenter.y-extent) || vPoint.y > ( vClientCenter.y+extent) )
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return false;
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return true;
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}
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int Tool3D::GetTransformationAxis()
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{
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if ( fabs( m_vPlaneNormal.x ) == 1 )
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{
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return 0;
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}
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else if ( fabs( m_vPlaneNormal.y ) == 1 )
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{
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return 1;
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}
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else if ( fabs( m_vPlaneNormal.z ) == 1 )
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{
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return 2;
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}
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else
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return -1;
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}
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void Tool3D::SetTransformationPlane( const Vector &vOrigin, const Vector &vHorz, const Vector &vVert, const Vector &vNormal )
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{
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Assert( DotProduct(vNormal,vVert) == 0 );
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Assert( DotProduct(vNormal,vHorz) == 0 );
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Assert( vNormal.Length() > 0.9999 && vNormal.Length() < 1.0001 );
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m_vPlaneOrigin = vOrigin;
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m_vPlaneNormal = vNormal;
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m_vPlaneHorz = vHorz;
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m_vPlaneVert = vVert;
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}
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unsigned int Tool3D::GetConstraints(unsigned int nKeyFlags)
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{
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unsigned int uConstraints = 0;
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bool bDisableSnap = (GetKeyState(VK_MENU) & 0x8000)!=0;
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if ( !bDisableSnap )
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{
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uConstraints |= constrainSnap;
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if ( !m_pDocument->IsSnapEnabled() )
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{
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uConstraints |= constrainIntSnap;
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}
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}
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return uConstraints;
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}
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void Tool3D::ProjectOnTranslationPlane( const Vector &vWorld, Vector &vTransform, int nFlags )
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{
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if ( !nFlags )
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{
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float frac = DotProduct( m_vPlaneNormal, m_vPlaneOrigin-vWorld );
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vTransform = vWorld + frac*m_vPlaneNormal;
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}
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else
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{
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Vector v0 = vWorld - m_vPlaneOrigin;
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Vector vOut;
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if ( !SolveLinearEquation( v0, m_vPlaneHorz, m_vPlaneVert, m_vPlaneNormal, vOut) )
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{
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vTransform.Init();
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return;
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}
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if ( nFlags & constrainOnlyHorz )
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{
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vOut.y = 0;
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}
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if ( nFlags & constrainOnlyVert )
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{
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vOut.x = 0;
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}
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if ( nFlags & constrainSnap )
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{
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if ( nFlags & constrainIntSnap )
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{
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// just snap to next integer
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vOut.x = rint(vOut.x);
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vOut.y = rint(vOut.y);
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}
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else
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{
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// snap to user grid
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float flGridSpacing = m_pDocument->GetGridSpacing();
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if ( nFlags & constrainHalfSnap )
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{
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flGridSpacing *= 0.5f;
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}
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vOut.y = rint(vOut.y / flGridSpacing) * flGridSpacing;
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vOut.x = rint(vOut.x / flGridSpacing) * flGridSpacing;
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}
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}
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vTransform = m_vPlaneOrigin + vOut.x * m_vPlaneHorz + vOut.y * m_vPlaneVert;
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}
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}
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void Tool3D::ProjectTranslation( CMapView *pView, const Vector2D &vPoint, Vector &vTransform, int nFlags )
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{
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Vector vStart, vEnd;
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pView->BuildRay( vPoint, vStart, vEnd );
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Vector vLine = vEnd-vStart;
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if ( !nFlags )
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{
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// simple plane & line intersection
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float d1 = DotProduct( m_vPlaneNormal, m_vPlaneOrigin-vStart );
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float d2 = DotProduct( m_vPlaneNormal, vLine );
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if ( d2 == 0 )
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{
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// line & plane are parallel !
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vTransform.Init();
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return;
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}
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vTransform = vStart + (d1/d2) *vLine;
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return;
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}
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Vector v0 = vStart - m_vPlaneOrigin;
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Vector vOut;
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if ( !SolveLinearEquation( v0, m_vPlaneHorz, m_vPlaneVert, -vLine, vOut) )
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{
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vTransform.Init();
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return;
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}
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if ( nFlags & constrainOnlyHorz )
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{
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vOut.y = 0;
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}
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if ( nFlags & constrainOnlyVert )
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{
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vOut.x = 0;
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}
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if ( nFlags & constrainSnap )
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{
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if ( nFlags & constrainIntSnap )
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{
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// just snap to next integer
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vOut.x = rint(vOut.x);
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vOut.y = rint(vOut.y);
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}
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else
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{
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// snap to user grid
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float flGridSpacing = m_pDocument->GetGridSpacing();
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if ( nFlags & constrainHalfSnap )
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{
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flGridSpacing *= 0.5f;
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}
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vOut.y = rint(vOut.y / flGridSpacing) * flGridSpacing;
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vOut.x = rint(vOut.x / flGridSpacing) * flGridSpacing;
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}
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}
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vTransform = m_vPlaneOrigin + vOut.x * m_vPlaneHorz + vOut.y * m_vPlaneVert;
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}
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bool Tool3D::OnLMouseDown2D( CMapView2D *pView, UINT nFlags, const Vector2D &vPoint )
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{
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m_bMouseDown[MOUSE_LEFT] = true;
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m_bMouseDragged[MOUSE_LEFT] = false;
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m_vMousePos = m_vMouseStart[MOUSE_LEFT] = vPoint;
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pView->SetCapture();
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return true;
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}
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bool Tool3D::OnLMouseUp2D( CMapView2D *pView, UINT nFlags, const Vector2D &vPoint )
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{
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m_vMousePos = vPoint;
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m_bMouseDown[MOUSE_LEFT] = false;
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m_bMouseDragged[MOUSE_LEFT] = false;
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ReleaseCapture();
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return true;
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}
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bool Tool3D::OnRMouseDown2D( CMapView2D *pView, UINT nFlags, const Vector2D &vPoint )
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{
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m_bMouseDown[MOUSE_RIGHT] = true;
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m_bMouseDragged[MOUSE_RIGHT] = false;
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m_vMousePos = m_vMouseStart[MOUSE_RIGHT] = vPoint;
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pView->SetCapture();
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return true;
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}
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bool Tool3D::OnRMouseUp2D( CMapView2D *pView, UINT nFlags, const Vector2D &vPoint )
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{
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m_vMousePos = vPoint;
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m_bMouseDown[MOUSE_RIGHT] = false;
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m_bMouseDragged[MOUSE_RIGHT] = false;
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ReleaseCapture();
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return true;
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}
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bool Tool3D::OnMouseMove2D( CMapView2D *pView, UINT nFlags, const Vector2D &vPoint )
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{
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m_vMousePos = vPoint;
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for ( int i=0;i<2;i++)
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{
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if ( m_bMouseDown[i] )
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{
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if ( !m_bMouseDragged[i] )
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{
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// check if mouse was dragged if button is pressed down
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Vector2D sizeDragged = vPoint - m_vMouseStart[i];
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if ((abs(sizeDragged.x) > DRAG_THRESHHOLD) || (abs(sizeDragged.y) > DRAG_THRESHHOLD))
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{
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// If here, means we've dragged the mouse
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m_bMouseDragged[i] = true;
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}
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}
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// Make sure the point is visible.
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pView->ToolScrollToPoint( vPoint );
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}
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}
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return true;
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}
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bool Tool3D::OnLMouseDown3D( CMapView3D *pView, UINT nFlags, const Vector2D &vPoint )
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{
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m_bMouseDown[MOUSE_LEFT] = true;
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m_bMouseDragged[MOUSE_LEFT] = false;
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m_vMousePos = m_vMouseStart[MOUSE_LEFT] = vPoint;
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return true;
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}
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bool Tool3D::OnLMouseUp3D( CMapView3D *pView, UINT nFlags, const Vector2D &vPoint )
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{
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m_vMousePos = vPoint;
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m_bMouseDown[MOUSE_LEFT] = false;
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m_bMouseDragged[MOUSE_LEFT] = false;
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::ReleaseCapture();
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return true;
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}
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bool Tool3D::OnRMouseDown3D( CMapView3D *pView, UINT nFlags, const Vector2D &vPoint )
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{
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m_bMouseDown[MOUSE_RIGHT] = true;
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m_bMouseDragged[MOUSE_RIGHT] = false;
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m_vMousePos = m_vMouseStart[MOUSE_RIGHT] = vPoint;
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return true;
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}
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bool Tool3D::OnRMouseUp3D( CMapView3D *pView, UINT nFlags, const Vector2D &vPoint )
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{
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m_vMousePos = vPoint;
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m_bMouseDown[MOUSE_RIGHT] = false;
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m_bMouseDragged[MOUSE_RIGHT] = false;
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::ReleaseCapture();
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return true;
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}
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bool Tool3D::OnMouseMove3D( CMapView3D *pView, UINT nFlags, const Vector2D &vPoint )
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{
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m_vMousePos = vPoint;
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for ( int i=0;i<2;i++)
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{
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if ( m_bMouseDown[i] )
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{
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if ( !m_bMouseDragged[i] )
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{
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// check if mouse was dragged if button is pressed down
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Vector2D sizeDragged = vPoint - m_vMouseStart[i];
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if ((abs(sizeDragged.x) > DRAG_THRESHHOLD) || (abs(sizeDragged.y) > DRAG_THRESHHOLD))
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{
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// If here, means we've dragged the mouse
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m_bMouseDragged[i] = true;
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}
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}
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// Make sure the point is visible.
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// pView->ToolScrollToPoint( vPoint );
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}
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}
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pView->SetCursor( vgui::dc_arrow );
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return true;
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}
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void Tool3D::RenderTranslationPlane(CRender *pRender)
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{
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pRender->PushRenderMode( RENDER_MODE_WIREFRAME );
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pRender->SetDrawColor( Color(128,128,128) );
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Vector viewPoint,vOffset;
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ProjectTranslation( pRender->GetView(), m_vMousePos, viewPoint, constrainSnap );
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float fGrid = m_pDocument->GetGridSpacing();
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int nSteps = 16;
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vOffset = m_vPlaneVert * (fGrid * nSteps);
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for (int h=-nSteps;h<=nSteps;h++)
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{
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Vector pos = viewPoint + ( m_vPlaneHorz * ( fGrid*h ) );
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pRender->DrawLine( pos+vOffset, pos-vOffset );
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}
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vOffset = m_vPlaneHorz * (fGrid * nSteps);
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for (int v=-nSteps;v<=nSteps;v++)
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{
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Vector pos = viewPoint + ( m_vPlaneVert * ( fGrid*v ) );
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pRender->DrawLine( pos+vOffset, pos-vOffset );
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}
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pRender->PopRenderMode();
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} |