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hammer/ToolMagnify.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#include "stdafx.h"
+#include "MapDoc.h"
+#include "MapView2D.h"
+#include "resource.h"
+#include "ToolMagnify.h"
+#include "HammerVGui.h"
+#include <VGuiMatSurface/IMatSystemSurface.h>
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include <tier0/memdbgon.h>
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Loads the cursor (only once).
+//-----------------------------------------------------------------------------
+CToolMagnify::CToolMagnify(void)
+{
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : *pView - 
+//			nFlags - 
+//			point - 
+// Output : Returns true on success, false on failure.
+//-----------------------------------------------------------------------------
+bool CToolMagnify::OnContextMenu2D(CMapView2D *pView, UINT nFlags, const Vector2D &vPoint)
+{
+	// Return true to suppress the default view context menu behavior.
+	return true;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : pView - 
+//			nFlags - 
+//			point - 
+// Output : Returns true to indicate that the message was handled.
+//-----------------------------------------------------------------------------
+bool CToolMagnify::OnLMouseDown2D(CMapView2D *pView, UINT nFlags, const Vector2D &vPoint)
+{
+	pView->SetZoom(pView->GetZoom() * 2);
+	pView->Invalidate();
+	return true;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : pView - 
+//			nFlags - 
+//			point - 
+// Output : Returns true to indicate that the message was handled.
+//-----------------------------------------------------------------------------
+bool CToolMagnify::OnMouseMove2D(CMapView2D *pView, UINT nFlags, const Vector2D &vPoint)
+{
+	// cursors are cached by surface
+	pView->SetCursor( "Resource/magnify.cur" );
+	return true;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : pView - 
+//			nFlags - 
+//			point - 
+// Output : Returns true to indicate that the message was handled.
+//-----------------------------------------------------------------------------
+bool CToolMagnify::OnRMouseDown2D(CMapView2D *pView, UINT nFlags, const Vector2D &vPoint)
+{
+	pView->SetZoom(pView->GetZoom() * 0.5f);
+	return true;
+}
+
+