hello world

neo/tools/guied/GEModifierStack.cpp

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+/*
+===========================================================================
+
+Doom 3 GPL Source Code
+Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company. 
+
+This file is part of the Doom 3 GPL Source Code (?Doom 3 Source Code?).  
+
+Doom 3 Source Code is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+Doom 3 Source Code is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Doom 3 Source Code.  If not, see <http://www.gnu.org/licenses/>.
+
+In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code.  If not, please request a copy in writing from id Software at the address below.
+
+If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
+
+===========================================================================
+*/
+
+#include "../../idlib/precompiled.h"
+#pragma hdrstop
+
+#include "GEApp.h"	
+#include "GEModifierStack.h"
+
+rvGEModifierStack::rvGEModifierStack ( )
+{
+	mCurrentModifier = -1;
+}
+
+rvGEModifierStack::~rvGEModifierStack ( )
+{
+	Reset ( );
+}
+
+void rvGEModifierStack::Reset ( void )
+{
+	int i;
+	
+	for ( i = 0; i < mModifiers.Num ( ); i ++ )
+	{
+		delete mModifiers[i];
+	}
+	
+	mModifiers.Clear ( );
+}
+
+bool rvGEModifierStack::Append ( rvGEModifier* modifier )
+{
+	// TODO: Add the modifier and clear all redo modifiers
+	if ( !modifier->IsValid ( ) )
+	{
+		delete modifier;
+		return false;
+	}
+
+	while ( mCurrentModifier < mModifiers.Num ( ) - 1 )
+	{
+		delete mModifiers[mModifiers.Num()-1];
+		mModifiers.RemoveIndex ( mModifiers.Num()-1 );
+	}
+	
+	if ( !mMergeBlock && mModifiers.Num ( ) )
+	{
+		rvGEModifier* top = mModifiers[mModifiers.Num()-1];
+		
+		// See if the two modifiers can merge
+		if ( top->GetWindow() == modifier->GetWindow() &&
+			 !idStr::Icmp ( top->GetName ( ), modifier->GetName ( ) ) &&
+			 top->CanMerge ( modifier ) )
+		{
+			// Merge the two modifiers
+			if ( top->Merge ( modifier ) )
+			{
+				top->Apply ( );
+				
+				gApp.GetProperties().Update ( );
+				gApp.GetTransformer().Update ( );
+			
+				delete modifier;
+				return true;
+			}		
+		}
+	}
+	
+	mModifiers.Append ( modifier );
+	mCurrentModifier = mModifiers.Num ( ) - 1;
+	
+	modifier->Apply ( );
+	
+	mMergeBlock = false;
+
+	gApp.GetProperties().Update ( );
+	gApp.GetTransformer().Update ( );
+
+	return true;
+}
+
+bool rvGEModifierStack::Undo ( void )
+{
+	if ( mCurrentModifier < 0 )
+	{
+		return false;
+	}
+	
+	mModifiers[mCurrentModifier]->Undo ( );
+	mCurrentModifier--;
+
+	gApp.GetProperties().Update ( );
+	gApp.GetTransformer().Update ( );
+
+	return true;
+}
+
+bool rvGEModifierStack::Redo ( void )
+{
+	if ( mCurrentModifier + 1 < mModifiers.Num ( ) )
+	{
+		mCurrentModifier++;
+		mModifiers[mCurrentModifier]->Apply ( );
+	}
+
+	gApp.GetProperties().Update ( );
+	gApp.GetTransformer().Update ( );
+
+	return true;
+}
+