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hammer/ToolSphere.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#include "stdafx.h"
+#include "History.h"
+#include "MainFrm.h"			// FIXME: For ObjectProperties
+#include "MapDoc.h"
+#include "MapView2D.h"
+#include "MapSphere.h"
+#include "StatusBarIDs.h"		// For updating status bar text
+#include "ToolManager.h"
+#include "ToolSphere.h"
+#include "Selection.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include <tier0/memdbgon.h>
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+CToolSphere::CToolSphere()
+{
+	m_pSphere = NULL;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : pSphere - 
+//-----------------------------------------------------------------------------
+void CToolSphere::Attach(CMapSphere *pSphere)
+{
+	m_pSphere = pSphere;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : pView - 
+//			nFlags - 
+//			point - 
+// Output : Returns true if the message was handled, false otherwise.
+//-----------------------------------------------------------------------------
+bool CToolSphere::OnLMouseDown2D(CMapView2D *pView, UINT nFlags, const Vector2D &vPoint)
+{
+	//
+	// Activate this tool and start resizing the sphere.
+	//
+	ToolManager()->PushTool(TOOL_SPHERE);
+	pView->SetCapture();
+
+	GetHistory()->MarkUndoPosition(m_pDocument->GetSelection()->GetList(), "Modify Radius");
+	GetHistory()->Keep(m_pSphere);
+	return true;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : pView - 
+//			nFlags - 
+//			point - 
+// Output : Returns true if the message was handled, false otherwise.
+//-----------------------------------------------------------------------------
+bool CToolSphere::OnLMouseUp2D(CMapView2D *pView, UINT nFlags, const Vector2D &vPoint)
+{
+	ToolManager()->PopTool();
+
+	ReleaseCapture();
+
+	m_pDocument->SetModifiedFlag();
+
+	return true;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : pView - 
+//			nFlags - 
+//			point - 
+// Output : Returns true if the message was handled, false otherwise.
+//-----------------------------------------------------------------------------
+bool CToolSphere::OnMouseMove2D(CMapView2D *pView, UINT nFlags, const Vector2D &vPoint)
+{
+	// Make sure the point is visible.
+	pView->ToolScrollToPoint( vPoint );
+
+	Vector	vecWorld;
+	pView->ClientToWorld( vecWorld,  vPoint );
+	m_pDocument->Snap( vecWorld, constrainSnap );
+
+	//
+	// Use whichever axis they dragged the most along as the drag axis.
+	// Calculate the drag distance in client coordinates.
+	//
+	float flHorzRadius = fabs((float)vecWorld[pView->axHorz] - m_pSphere->m_Origin[pView->axHorz]);
+	float flVertRadius = fabs((float)vecWorld[pView->axVert] - m_pSphere->m_Origin[pView->axVert]);
+	float flRadius = max(flHorzRadius, flVertRadius);
+	
+	m_pSphere->SetRadius(flRadius);
+
+	//
+	// Update the status bar text with the new value of the radius.
+	//
+	char szBuf[128];
+	sprintf(szBuf, " %s = %g ", m_pSphere->m_szKeyName, (double)m_pSphere->m_flRadius);
+	SetStatusText(SBI_COORDS, szBuf);
+
+	m_pDocument->UpdateAllViews( MAPVIEW_UPDATE_TOOL );
+
+	return true;
+}
+