/*
=============
Undo_Start
=============
*/
void Undo_Start( const char *operation ){
// spog - disable undo if undo levels = 0
if ( g_PrefsDlg.m_nUndoLevels == 0 ) {
#ifdef DBG_UNDO
Sys_Printf( "Undo_Start: undo is disabled.\n" );
#endif
return;
}
Undo_ClearRedo();
Undo_GeneralStart( operation );
}
/*
=============
Undo_Redo
=============
*/
void Undo_Redo(void)
{
undo_t *redo;
brush_t *pBrush, *pNextBrush;
entity_t *pEntity, *pNextEntity, *pRedoEntity;
if (!g_lastredo)
{
Sys_Status("Nothing left to redo.\n");
return;
}
if (g_lastundo)
{
if (!g_lastundo->done)
{
Sys_Status("WARNING: last undo not finished.\n");
}
}
// get the last redo
redo = g_lastredo;
if (g_lastredo->prev) g_lastredo->prev->next = NULL;
else g_redolist = NULL;
g_lastredo = g_lastredo->prev;
//
Undo_GeneralStart(redo->operation);
// remove current selection
Select_Deselect();
// move "created" brushes back to the last undo
for (pBrush = active_brushes.next; pBrush != NULL && pBrush != &active_brushes; pBrush = pNextBrush)
{
pNextBrush = pBrush->next;
if (pBrush->redoId == redo->id)
{
//move the brush to the undo
Brush_RemoveFromList(pBrush);
Brush_AddToList(pBrush, &g_lastundo->brushlist);
g_undoMemorySize += Brush_MemorySize(pBrush);
pBrush->ownerId = pBrush->owner->entityId;
Entity_UnlinkBrush(pBrush);
}
}
// move "created" entities back to the last undo
for (pEntity = entities.next; pEntity != NULL && pEntity != &entities; pEntity = pNextEntity)
{
pNextEntity = pEntity->next;
if (pEntity->redoId == redo->id)
{
// check if this entity is in the redo
for (pRedoEntity = redo->entitylist.next; pRedoEntity != NULL && pRedoEntity != &redo->entitylist; pRedoEntity = pRedoEntity->next)
{
// move brushes to the redo entity
if (pRedoEntity->entityId == pEntity->entityId)
{
pRedoEntity->brushes.next = pEntity->brushes.next;
pRedoEntity->brushes.prev = pEntity->brushes.prev;
pEntity->brushes.next = &pEntity->brushes;
pEntity->brushes.prev = &pEntity->brushes;
}
}
//
//Entity_Free(pEntity);
//move the entity to the redo
Entity_RemoveFromList(pEntity);
Entity_AddToList(pEntity, &g_lastundo->entitylist);
g_undoMemorySize += Entity_MemorySize(pEntity);
}
}
// add the undo entities back into the entity list
for (pEntity = redo->entitylist.next; pEntity != NULL && pEntity != &redo->entitylist; pEntity = redo->entitylist.next)
{
//if this is the world entity
if (pEntity->entityId == world_entity->entityId)
{
//free the epairs of the world entity
Entity_FreeEpairs(world_entity);
//set back the original epairs
world_entity->epairs = pEntity->epairs;
//free the world_entity clone that stored the epairs
Entity_Free(pEntity);
}
else
{
Entity_RemoveFromList(pEntity);
Entity_AddToList(pEntity, &entities);
}
}
// add the redo brushes back into the selected brushes
for (pBrush = redo->brushlist.next; pBrush != NULL && pBrush != &redo->brushlist; pBrush = redo->brushlist.next)
{
Brush_RemoveFromList(pBrush);
Brush_AddToList(pBrush, &active_brushes);
for (pEntity = entities.next; pEntity != NULL && pEntity != &entities; pEntity = pEntity->next)
{
if (pEntity->entityId == pBrush->ownerId)
{
Entity_LinkBrush(pEntity, pBrush);
break;
}
}
//if the brush is not linked then it should be linked into the world entity
if (pEntity == NULL || pEntity == &entities)
{
Entity_LinkBrush(world_entity, pBrush);
}
//build the brush
//Brush_Build(pBrush);
Select_Brush(pBrush);
}
//
Undo_End();
//
common->Printf("%s redone.\n", redo->operation);
//
g_redoId--;
// free the undo
Mem_Free(redo);
//
g_bScreenUpdates = true;
Sys_UpdateWindows(W_ALL);
}
/*
=============
Undo_Start
=============
*/
void Undo_Start(char *operation)
{
Undo_ClearRedo();
Undo_GeneralStart(operation);
}
/*
=============
Undo_Redo
=============
*/
void Undo_Redo( void ){
// spog - disable undo if undo levels = 0
if ( g_PrefsDlg.m_nUndoLevels == 0 ) {
Sys_Printf( "Undo_Redo: undo is disabled.\n" );
return;
}
undo_t *redo;
brush_t *pBrush, *pNextBrush;
entity_t *pEntity, *pNextEntity, *pRedoEntity;
if ( !g_lastredo ) {
Sys_Printf( "Nothing left to redo.\n" );
return;
}
if ( g_lastundo ) {
if ( !g_lastundo->done ) {
Sys_Printf( "WARNING: last undo not finished.\n" );
}
}
// get the last redo
redo = g_lastredo;
if ( g_lastredo->prev ) {
g_lastredo->prev->next = NULL;
}
else{g_redolist = NULL; }
g_lastredo = g_lastredo->prev;
//
Undo_GeneralStart( redo->operation );
// remove current selection
Select_Deselect();
// move "created" brushes back to the last undo
for ( pBrush = active_brushes.next; pBrush != NULL && pBrush != &active_brushes; pBrush = pNextBrush )
{
pNextBrush = pBrush->next;
if ( pBrush->redoId == redo->id ) {
//move the brush to the undo
Brush_RemoveFromList( pBrush );
Brush_AddToList( pBrush, &g_lastundo->brushlist );
g_undoMemorySize += Brush_MemorySize( pBrush );
pBrush->ownerId = pBrush->owner->entityId;
Entity_UnlinkBrush( pBrush );
}
}
// move "created" entities back to the last undo
for ( pEntity = entities.next; pEntity != NULL && pEntity != &entities; pEntity = pNextEntity )
{
pNextEntity = pEntity->next;
if ( pEntity->redoId == redo->id ) {
// check if this entity is in the redo
for ( pRedoEntity = redo->entitylist.next; pRedoEntity != NULL && pRedoEntity != &redo->entitylist; pRedoEntity = pRedoEntity->next )
{
// move brushes to the redo entity
if ( pRedoEntity->entityId == pEntity->entityId ) {
pRedoEntity->brushes.next = pEntity->brushes.next;
pRedoEntity->brushes.prev = pEntity->brushes.prev;
pEntity->brushes.next = &pEntity->brushes;
pEntity->brushes.prev = &pEntity->brushes;
}
}
//
//Entity_Free(pEntity);
//move the entity to the redo
Entity_RemoveFromList( pEntity );
Entity_AddToList( pEntity, &g_lastundo->entitylist );
g_undoMemorySize += Entity_MemorySize( pEntity );
}
}
// add the undo entities back into the entity list
for ( pEntity = redo->entitylist.next; pEntity != NULL && pEntity != &redo->entitylist; pEntity = redo->entitylist.next )
{
//if this is the world entity
if ( pEntity->entityId == world_entity->entityId ) {
epair_t* tmp = world_entity->epairs;
world_entity->epairs = pEntity->epairs;
pEntity->epairs = tmp;
Entity_Free( pEntity );
}
else
{
Entity_RemoveFromList( pEntity );
Entity_AddToList( pEntity, &entities );
}
}
// add the redo brushes back into the selected brushes
for ( pBrush = redo->brushlist.next; pBrush != NULL && pBrush != &redo->brushlist; pBrush = redo->brushlist.next )
{
Brush_RemoveFromList( pBrush );
Brush_AddToList( pBrush, &active_brushes );
for ( pEntity = entities.next; pEntity != NULL && pEntity != &entities; pEntity = pEntity->next ) // fixes broken undo on entities
{
if ( pEntity->entityId == pBrush->ownerId ) {
Entity_LinkBrush( pEntity, pBrush );
break;
}
}
//if the brush is not linked then it should be linked into the world entity
if ( pEntity == NULL || pEntity == &entities ) {
Entity_LinkBrush( world_entity, pBrush );
}
//build the brush
//Brush_Build(pBrush);
Select_Brush( pBrush );
}
//
Undo_End();
//
Sys_Printf( "%s redone.\n", redo->operation );
//
g_redoId--;
// free the undo
free( redo );
//
g_bScreenUpdates = true;
UpdateSurfaceDialog();
Sys_UpdateWindows( W_ALL );
}
