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hammer/ToolPickAngles.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: Tool used for point-and-click setting of angles.
+//
+//=============================================================================//
+
+#include "stdafx.h"
+#include "resource.h"
+#include "ToolPickAngles.h"
+#include "MapView3D.h"
+#include "MapSolid.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include <tier0/memdbgon.h>
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Constructor. Inits data members.
+//-----------------------------------------------------------------------------
+CToolPickAngles::CToolPickAngles(void)
+{
+	m_pNotifyTarget = NULL;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Destructor.
+//-----------------------------------------------------------------------------
+CToolPickAngles::~CToolPickAngles(void)
+{
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Handles the left mouse button up message in the 3D view.
+// Input  : pView - The view that the event occurred in.
+//			nFlags - Flags per the Windows mouse message.
+//			point - Point in client coordinates where the event occurred.
+// Output : Returns true if the message was handled by the tool, false if not.
+//-----------------------------------------------------------------------------
+bool CToolPickAngles::OnLMouseUp3D(CMapView3D *pView, UINT nFlags, const Vector2D &vPoint)
+{
+	return true;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Handles the left mouse button up message in the 3D view.
+// Input  : pView - The view that the event occurred in.
+//			nFlags - Flags per the Windows mouse message.
+//			point - Point in client coordinates where the event occurred.
+// Output : Returns true if the message was handled by the tool, false if not.
+//-----------------------------------------------------------------------------
+bool CToolPickAngles::OnLMouseDown3D(CMapView3D *pView, UINT nFlags, const Vector2D &vPoint)
+{
+	unsigned long ulFace;
+	CMapClass *pObject = pView->NearestObjectAt( vPoint, ulFace);
+	if (pObject != NULL)
+	{
+		CMapClass *pSelObject = pObject->PrepareSelection(selectObjects);
+		CMapEntity *pEntity = dynamic_cast <CMapEntity *>(pSelObject);
+		if (pEntity != NULL)
+		{
+			//
+			// We clicked on an entity.
+			//
+			if (m_pNotifyTarget)
+			{
+				Vector vecCenter;
+				pEntity->GetBoundsCenter(vecCenter);
+				m_pNotifyTarget->OnNotifyPickAngles(vecCenter);
+			}
+		}
+		else
+		{
+			CMapSolid *pSolid = dynamic_cast <CMapSolid *> (pObject);
+			if (pSolid == NULL)
+			{
+				return true;
+			}
+
+			//
+			// Build a ray to trace against the face that they clicked on to
+			// find the point of intersection.
+			//			
+			Vector Start,End;
+			pView->GetCamera()->BuildRay( vPoint, Start, End);
+
+			Vector HitPos;
+			Vector HitNormal;
+			CMapFace *pFace = pSolid->GetFace(ulFace);
+			if (pFace->TraceLine(HitPos, HitNormal, Start, End))
+			{
+				if (m_pNotifyTarget)
+				{
+					m_pNotifyTarget->OnNotifyPickAngles(HitPos);
+				}
+			}
+		}
+	}
+
+	return true;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Handles the left mouse button double click message in the 3D view.
+// Input  : pView - The view that the event occurred in.
+//			nFlags - Flags per the Windows mouse message.
+//			point - Point in client coordinates where the event occurred.
+// Output : Returns true if the message was handled by the tool, false if not.
+//-----------------------------------------------------------------------------
+bool CToolPickAngles::OnLMouseDblClk3D(CMapView3D *pView, UINT nFlags, const Vector2D &vPoint)
+{
+	return true;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Handles the right mouse button up message in the 3D view.
+// Input  : pView - The view that the event occurred in.
+//			nFlags - Flags per the Windows mouse message.
+//			point - Point in client coordinates where the event occurred.
+// Output : Returns true if the message was handled by the tool, false if not.
+//-----------------------------------------------------------------------------
+bool CToolPickAngles::OnRMouseUp3D(CMapView3D *pView, UINT nFlags, const Vector2D &vPoint)
+{
+	return true;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Handles the mouse button up message in the 3D view.
+// Input  : pView - The view that the event occurred in.
+//			nFlags - Flags per the Windows mouse message.
+//			point - Point in client coordinates where the event occurred.
+// Output : Returns true if the message was handled by the tool, false if not.
+//-----------------------------------------------------------------------------
+bool CToolPickAngles::OnRMouseDown3D(CMapView3D *pView, UINT nFlags, const Vector2D &vPoint)
+{
+	return true;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Handles the mouse move message in the 3D view.
+// Input  : pView - The view that the event occurred in.
+//			nFlags - Flags per the Windows mouse message.
+//			point - Point in client coordinates where the event occurred.
+// Output : Returns true if the message was handled by the tool, false if not.
+//-----------------------------------------------------------------------------
+bool CToolPickAngles::OnMouseMove3D(CMapView3D *pView, UINT nFlags, const Vector2D &vPoint)
+{
+	SetToolCursor();
+	return true;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Sets the cursor to the correct cursor for this tool.
+//-----------------------------------------------------------------------------
+void CToolPickAngles::SetToolCursor(void)
+{
+	static HCURSOR hcur = NULL;
+	
+	if (!hcur)
+	{
+		hcur = LoadCursor(AfxGetInstanceHandle(), MAKEINTRESOURCE(IDC_CROSSHAIR));
+	}
+	
+	SetCursor(hcur);
+}
+
+