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hammer/ToolDecal.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#include "stdafx.h"
+#include "GlobalFunctions.h"
+#include "History.h"
+#include "MapDoc.h"
+#include "MapDecal.h"
+#include "MapSolid.h"
+#include "MapView3D.h"
+#include "resource.h"
+#include "ToolManager.h"
+#include "ToolDecal.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include <tier0/memdbgon.h>
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Handles key down events in the 2D view.
+// Input  : Per CWnd::OnKeyDown. 
+// Output : Returns true on success, false on failure.
+//-----------------------------------------------------------------------------
+bool CToolDecal::OnKeyDown2D(CMapView2D *pView, UINT nChar, UINT nRepCnt, UINT nFlags)
+{
+	switch (nChar)
+	{
+		case VK_ESCAPE:
+		{
+			ToolManager()->SetTool(TOOL_POINTER);
+			return true;
+		}
+	}
+	
+	return false;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Handles mouse move events in the 2D view.
+// Input  : Per CWnd::OnMouseMove.
+// Output : Returns true if the message was handled, false if not.
+//-----------------------------------------------------------------------------
+bool CToolDecal::OnMouseMove2D(CMapView2D *pView, UINT nFlags, const Vector2D &vPoint) 
+{
+	SetDecalCursor();
+	return true;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Handles key down events in the 3D view.
+// Input  : Per CWnd::OnKeyDown.
+// Output : Returns true if the message was handled, false if not.
+//-----------------------------------------------------------------------------
+bool CToolDecal::OnKeyDown3D(CMapView3D *pView, UINT nChar, UINT nRepCnt, UINT nFlags) 
+{
+	switch (nChar)
+	{
+		case VK_ESCAPE:
+		{
+			ToolManager()->SetTool(TOOL_POINTER);
+		}
+	}
+
+	return false;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Handles left button down events in the 3D view. 
+// Input  : Per CWnd::OnLButtonDown.
+// Output : Returns true if the message was handled, false if not.
+//-----------------------------------------------------------------------------
+bool CToolDecal::OnLMouseDown3D(CMapView3D *pView, UINT nFlags, const Vector2D &vPoint) 
+{
+	//
+	// See if they clicked on a brush face. If so, apply a decal where they clicked.
+	//
+	CMapDoc *pDoc = pView->GetMapDoc();
+
+	ULONG ulFace;
+	CMapClass *pObject;
+
+	if ((pObject = pView->NearestObjectAt( vPoint, ulFace)) != NULL)
+	{
+		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, HitNormal;
+		CMapFace *pFace = pSolid->GetFace(ulFace);
+		if (pFace->TraceLine(HitPos, HitNormal, Start, End))
+		{
+			GetHistory()->MarkUndoPosition(NULL, "Create decal");
+
+			CMapEntity *pEntity = new CMapEntity;
+			pEntity->SetKeyValue("texture", GetDefaultTextureName());
+			pEntity->SetPlaceholder(TRUE);
+			pEntity->SetOrigin(HitPos);
+			pEntity->SetClass("infodecal");
+
+			CMapWorld *pWorld = pDoc->GetMapWorld();
+
+			CMapDecal *pDecal = pEntity->GetChildOfType((CMapDecal *)NULL);
+			if (pDecal != NULL)
+			{
+				pDecal->DecalAllSolids(pWorld);
+			}
+
+			pEntity->CalcBounds(TRUE);
+			pDoc->AddObjectToWorld(pEntity);
+
+			GetHistory()->KeepNew(pEntity);
+
+			pDoc->SetModifiedFlag();
+		}
+	}
+
+	return true;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Handles mouse move events in the 3D view.
+// Input  : Per CWnd::OnMouseMove.
+// Output : Returns true if the message was handled, false if not.
+//-----------------------------------------------------------------------------
+bool CToolDecal::OnMouseMove3D(CMapView3D *pView, UINT nFlags, const Vector2D &vPoint)
+{
+	SetDecalCursor();
+	return true;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Sets the cursor to the decal application cursor.
+//-----------------------------------------------------------------------------
+void CToolDecal::SetDecalCursor(void)
+{
+	static HCURSOR hcurDecal;
+	
+	if (!hcurDecal)
+	{
+		hcurDecal = LoadCursor(AfxGetInstanceHandle(), MAKEINTRESOURCE(IDC_DECAL));
+	}
+	
+	SetCursor(hcurDecal);
+}
+