/*
-Copyright (C) 1999-2007 id Software, Inc. and contributors.
-For a list of contributors, see the accompanying CONTRIBUTORS file.
+ Copyright (C) 2001-2006, William Joseph.
+ All Rights Reserved.
-This file is part of GtkRadiant.
+ This file is part of GtkRadiant.
-GtkRadiant 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 2 of the License, or
-(at your option) any later version.
+ GtkRadiant 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 2 of the License, or
+ (at your option) any later version.
-GtkRadiant 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.
+ GtkRadiant 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 GtkRadiant; if not, write to the Free Software
-Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-*/
+ You should have received a copy of the GNU General Public License
+ along with GtkRadiant; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include "undo.h"
-/*
-
- QERadiant Undo/Redo
-
-
-basic setup:
-
-<-g_undolist---------g_lastundo> <---map data---> <-g_lastredo---------g_redolist->
+#include "debugging/debugging.h"
+#include "warnings.h"
+#include "iundo.h"
+#include "preferencesystem.h"
+#include "string/string.h"
+#include "generic/callback.h"
+#include "preferences.h"
+#include "stringio.h"
- undo/redo on the world_entity is special, only the epair changes are remembered
- and the world entity never gets deleted.
+#include <list>
+#include <map>
+#include <set>
- FIXME: maybe reset the Undo system at map load
- maybe also reset the entityId at map load
-*/
+#include "timer.h"
-#include "stdafx.h"
-
-typedef struct undo_s
-{
- double time; //time operation was performed
- int id; //every undo has an unique id
- int done; //true when undo is build
- const char *operation; //name of the operation
- brush_t brushlist; //deleted brushes
- entity_t entitylist; //deleted entities
- struct undo_s *prev, *next; //next and prev undo in list
-} undo_t;
-
-undo_t *g_undolist; //first undo in the list
-undo_t *g_lastundo; //last undo in the list
-undo_t *g_redolist; //first redo in the list
-undo_t *g_lastredo; //last undo in list
-int g_undoMaxSize = 64; //maximum number of undos
-int g_undoSize = 0; //number of undos in the list
-int g_undoMaxMemorySize = 2*1024*1024; //maximum undo memory (default 2 MB)
-int g_undoMemorySize = 0; //memory size of undo buffer
-int g_undoId = 1; //current undo ID (zero is invalid id)
-int g_redoId = 1; //current redo ID (zero is invalid id)
-
-/*
-=============
-Undo_MemorySize
-=============
-*/
-int Undo_MemorySize(void)
+class DebugScopeTimer
{
- return g_undoMemorySize;
+Timer m_timer;
+const char* m_operation;
+public:
+DebugScopeTimer( const char* operation )
+ : m_operation( operation ){
+ m_timer.start();
}
-
-/*
-=============
-Undo_ClearRedo
-=============
-*/
-void Undo_ClearRedo(void)
-{
- undo_t *redo, *nextredo;
- brush_t *pBrush, *pNextBrush;
- entity_t *pEntity, *pNextEntity;
-
- for (redo = g_redolist; redo; redo = nextredo)
- {
- nextredo = redo->next;
- for (pBrush = redo->brushlist.next ; pBrush != NULL && pBrush != &redo->brushlist ; pBrush = pNextBrush)
- {
- pNextBrush = pBrush->next;
- Brush_Free(pBrush);
- }
- for (pEntity = redo->entitylist.next; pEntity != NULL && pEntity != &redo->entitylist; pEntity = pNextEntity)
- {
- pNextEntity = pEntity->next;
- Entity_Free(pEntity);
- }
- free(redo);
+~DebugScopeTimer(){
+ unsigned int elapsed = m_timer.elapsed_msec();
+ if ( elapsed > 0 ) {
+ globalOutputStream() << m_operation << ": " << elapsed << " msec\n";
}
- g_redolist = NULL;
- g_lastredo = NULL;
- g_redoId = 1;
}
+};
-/*
-=============
-Undo_Clear
- Clears the undo buffer.
-=============
-*/
-void Undo_Clear(void)
+class RadiantUndoSystem : public UndoSystem
{
- undo_t *undo, *nextundo;
- brush_t *pBrush, *pNextBrush;
- entity_t *pEntity, *pNextEntity;
+UINT_CONSTANT( MAX_UNDO_LEVELS, 1024 );
- Undo_ClearRedo();
- for (undo = g_undolist; undo; undo = nextundo)
- {
- nextundo = undo->next;
- for (pBrush = undo->brushlist.next ; pBrush != NULL && pBrush != &undo->brushlist ; pBrush = pNextBrush)
- {
- pNextBrush = pBrush->next;
- g_undoMemorySize -= Brush_MemorySize(pBrush);
- Brush_Free(pBrush);
- }
- for (pEntity = undo->entitylist.next; pEntity != NULL && pEntity != &undo->entitylist; pEntity = pNextEntity)
- {
- pNextEntity = pEntity->next;
- g_undoMemorySize -= Entity_MemorySize(pEntity);
- Entity_Free(pEntity);
- }
- g_undoMemorySize -= sizeof(undo_t);
- free(undo);
- }
- g_undolist = NULL;
- g_lastundo = NULL;
- g_undoSize = 0;
- g_undoMemorySize = 0;
- g_undoId = 1;
-}
-
-/*
-=============
-Undo_SetMaxSize
-=============
-*/
-void Undo_SetMaxSize(int size)
+class Snapshot
{
- Undo_Clear();
- if (size < 1) g_undoMaxSize = 1;
- else g_undoMaxSize = size;
-}
-
-/*
-=============
-Undo_GetMaxSize
-=============
-*/
-int Undo_GetMaxSize(void)
+class StateApplicator
{
- return g_undoMaxSize;
+public:
+Undoable* m_undoable;
+private:
+UndoMemento* m_data;
+public:
+
+StateApplicator( Undoable* undoable, UndoMemento* data )
+ : m_undoable( undoable ), m_data( data ){
}
-
-/*
-=============
-Undo_SetMaxMemorySize
-=============
-*/
-void Undo_SetMaxMemorySize(int size)
-{
- Undo_Clear();
- if (size < 1024) g_undoMaxMemorySize = 1024;
- else g_undoMaxMemorySize = size;
+void restore(){
+ m_undoable->importState( m_data );
}
-
-/*
-=============
-Undo_GetMaxMemorySize
-=============
-*/
-int Undo_GetMaxMemorySize(void)
-{
- return g_undoMaxMemorySize;
+void release(){
+ m_data->release();
}
+};
-/*
-=============
-Undo_FreeFirstUndo
-=============
-*/
-void Undo_FreeFirstUndo(void)
-{
- undo_t *undo;
- brush_t *pBrush, *pNextBrush;
- entity_t *pEntity, *pNextEntity;
-
- //remove the oldest undo from the undo buffer
- undo = g_undolist;
- g_undolist = g_undolist->next;
- g_undolist->prev = NULL;
- //
- for (pBrush = undo->brushlist.next ; pBrush != NULL && pBrush != &undo->brushlist ; pBrush = pNextBrush)
+typedef std::list<StateApplicator> states_t;
+states_t m_states;
+
+public:
+bool empty() const {
+ return m_states.empty();
+}
+std::size_t size() const {
+ return m_states.size();
+}
+void save( Undoable* undoable ){
+ m_states.push_front( StateApplicator( undoable, undoable->exportState() ) );
+}
+void restore(){
+ for ( states_t::iterator i = m_states.begin(); i != m_states.end(); ++i )
{
- pNextBrush = pBrush->next;
- g_undoMemorySize -= Brush_MemorySize(pBrush);
- Brush_Free(pBrush);
+ ( *i ).restore();
}
- for (pEntity = undo->entitylist.next; pEntity != NULL && pEntity != &undo->entitylist; pEntity = pNextEntity)
+}
+void release(){
+ for ( states_t::iterator i = m_states.begin(); i != m_states.end(); ++i )
{
- pNextEntity = pEntity->next;
- g_undoMemorySize -= Entity_MemorySize(pEntity);
- Entity_Free(pEntity);
+ ( *i ).release();
}
- g_undoMemorySize -= sizeof(undo_t);
- free(undo);
- g_undoSize--;
}
+};
-/*
-=============
-Undo_GeneralStart
-=============
-*/
-void Undo_GeneralStart(const char *operation)
+struct Operation
{
- undo_t *undo;
- brush_t *pBrush;
- entity_t *pEntity;
+ Snapshot m_snapshot;
+ CopiedString m_command;
-
- if (g_lastundo)
- {
- if (!g_lastundo->done)
- {
- Sys_Printf("Undo_Start: WARNING last undo not finished.\n");
- }
+ Operation( const char* command )
+ : m_command( command ){
}
+ ~Operation(){
+ m_snapshot.release();
+ }
+};
- undo = (undo_t *) malloc(sizeof(undo_t));
- if (!undo)
- return;
- memset(undo, 0, sizeof(undo_t));
- undo->brushlist.next = &undo->brushlist;
- undo->brushlist.prev = &undo->brushlist;
- undo->entitylist.next = &undo->entitylist;
- undo->entitylist.prev = &undo->entitylist;
- if (g_lastundo)
- g_lastundo->next = undo;
- else
- g_undolist = undo;
- undo->prev = g_lastundo;
- undo->next = NULL;
- g_lastundo = undo;
-
- undo->time = Sys_DoubleTime();
- //
- if (g_undoId > g_undoMaxSize * 2) g_undoId = 1;
- if (g_undoId <= 0) g_undoId = 1;
- undo->id = g_undoId++;
- undo->done = false;
- undo->operation = operation;
- //reset the undo IDs of all brushes using the new ID
- for (pBrush = active_brushes.next; pBrush != NULL && pBrush != &active_brushes; pBrush = pBrush->next)
- {
- if (pBrush->undoId == undo->id)
+
+class UndoStack
+{
+//! Note: using std::list instead of vector/deque, to avoid copying of undos
+typedef std::list<Operation*> Operations;
+
+Operations m_stack;
+Operation* m_pending;
+
+public:
+UndoStack() : m_pending( 0 ){
+}
+~UndoStack(){
+ clear();
+}
+bool empty() const {
+ return m_stack.empty();
+}
+std::size_t size() const {
+ return m_stack.size();
+}
+Operation* back(){
+ return m_stack.back();
+}
+const Operation* back() const {
+ return m_stack.back();
+}
+Operation* front(){
+ return m_stack.front();
+}
+const Operation* front() const {
+ return m_stack.front();
+}
+void pop_front(){
+ delete m_stack.front();
+ m_stack.pop_front();
+}
+void pop_back(){
+ delete m_stack.back();
+ m_stack.pop_back();
+}
+void clear(){
+ if ( !m_stack.empty() ) {
+ for ( Operations::iterator i = m_stack.begin(); i != m_stack.end(); ++i )
{
- pBrush->undoId = 0;
+ delete *i;
}
+ m_stack.clear();
}
- for (pBrush = selected_brushes.next; pBrush != NULL && pBrush != &selected_brushes; pBrush = pBrush->next)
- {
- if (pBrush->undoId == undo->id)
- {
- pBrush->undoId = 0;
- }
+}
+void start( const char* command ){
+ if ( m_pending != 0 ) {
+ delete m_pending;
}
- //reset the undo IDs of all entities using thew new ID
- for (pEntity = entities.next; pEntity != NULL && pEntity != &entities; pEntity = pEntity->next)
- {
- if (pEntity->undoId == undo->id)
- {
- pEntity->undoId = 0;
- }
+ m_pending = new Operation( command );
+}
+bool finish( const char* command ){
+ if ( m_pending != 0 ) {
+ delete m_pending;
+ m_pending = 0;
+ return false;
}
- g_undoMemorySize += sizeof(undo_t);
- g_undoSize++;
- //undo buffer is bound to a max
- if (g_undoSize > g_undoMaxSize)
+ else
{
- Undo_FreeFirstUndo();
+ ASSERT_MESSAGE( !m_stack.empty(), "undo stack empty" );
+ m_stack.back()->m_command = command;
+ return true;
}
}
+void save( Undoable* undoable ){
+ if ( m_pending != 0 ) {
+ m_stack.push_back( m_pending );
+ m_pending = 0;
+ }
+ back()->m_snapshot.save( undoable );
+}
+};
-/*
-=============
-Undo_BrushInUndo
-=============
-*/
-int Undo_BrushInUndo(undo_t *undo, brush_t *brush)
+UndoStack m_undo_stack;
+UndoStack m_redo_stack;
+
+class UndoStackFiller : public UndoObserver
{
-/* brush_t *b;
+UndoStack* m_stack;
+public:
- for (b = undo->brushlist.next; b != &undo->brushlist; b = b->next)
- {
- // Arnout: NOTE - can't do a pointer compare as the brushes get cloned into the undo brushlist, and not just referenced from it
- // For entities we have a unique ID, for brushes we have numberID - but brush full clone increases that anyway so it's useless right now.
- if (b == brush) return true;
- }*/
- // Arnout: function is pointless right now, see above explanation
- return false;
+UndoStackFiller()
+ : m_stack( 0 ){
}
+void save( Undoable* undoable ){
+ ASSERT_NOTNULL( undoable );
-/*
-=============
-Undo_EntityInUndo
-=============
-*/
-int Undo_EntityInUndo(undo_t *undo, entity_t *ent)
-{
- entity_t *e;
-
- for (e = undo->entitylist.next; e != &undo->entitylist; e = e->next)
- {
- // Arnout: NOTE - can't do a pointer compare as the entities get cloned into the undo entitylist, and not just referenced from it
- //if (e == ent) return true;
- if( e->entityId == ent->entityId ) return true;
+ if ( m_stack != 0 ) {
+ m_stack->save( undoable );
+ m_stack = 0;
}
- return false;
}
+void setStack( UndoStack* stack ){
+ m_stack = stack;
+}
+};
-/*
-=============
-Undo_Start
-=============
-*/
-void Undo_Start(const char *operation)
-{
- // spog - disable undo if undo levels = 0
- if (g_PrefsDlg.m_nUndoLevels == 0)
+typedef std::map<Undoable*, UndoStackFiller> undoables_t;
+undoables_t m_undoables;
+
+void mark_undoables( UndoStack* stack ){
+ for ( undoables_t::iterator i = m_undoables.begin(); i != m_undoables.end(); ++i )
{
-#ifdef DBG_UNDO
- Sys_Printf("Undo_Start: undo is disabled.\n");
-#endif
- return;
+ ( *i ).second.setStack( stack );
}
+}
+
+std::size_t m_undo_levels;
+
+typedef std::set<UndoTracker*> Trackers;
+Trackers m_trackers;
+public:
+RadiantUndoSystem()
+ : m_undo_levels( 64 ){
+}
+~RadiantUndoSystem(){
+ clear();
+}
+UndoObserver* observer( Undoable* undoable ){
+ ASSERT_NOTNULL( undoable );
- Undo_ClearRedo();
- Undo_GeneralStart(operation);
+ return &m_undoables[undoable];
}
+void release( Undoable* undoable ){
+ ASSERT_NOTNULL( undoable );
-/*
-=============
-Undo_AddBrush
-=============
-*/
-void Undo_AddBrush(brush_t *pBrush)
-{
- // spog - disable undo if undo levels = 0
- if (g_PrefsDlg.m_nUndoLevels == 0)
- {
-#ifdef DBG_UNDO
- Sys_Printf("Undo_AddBrush: undo is disabled.\n");
-#endif
- return;
+ m_undoables.erase( undoable );
+}
+void setLevels( std::size_t levels ){
+ if ( levels > MAX_UNDO_LEVELS() ) {
+ levels = MAX_UNDO_LEVELS();
}
- if (!g_lastundo)
+ while ( m_undo_stack.size() > levels )
{
- Sys_Printf("Undo_AddBrushList: no last undo.\n");
- return;
+ m_undo_stack.pop_front();
}
- if (g_lastundo->entitylist.next != &g_lastundo->entitylist)
- {
- Sys_Printf("Undo_AddBrushList: WARNING adding brushes after entity.\n");
+ m_undo_levels = levels;
+}
+std::size_t getLevels() const {
+ return m_undo_levels;
+}
+std::size_t size() const {
+ return m_undo_stack.size();
+}
+void startUndo(){
+ m_undo_stack.start( "unnamedCommand" );
+ mark_undoables( &m_undo_stack );
+}
+bool finishUndo( const char* command ){
+ bool changed = m_undo_stack.finish( command );
+ mark_undoables( 0 );
+ return changed;
+}
+void startRedo(){
+ m_redo_stack.start( "unnamedCommand" );
+ mark_undoables( &m_redo_stack );
+}
+bool finishRedo( const char* command ){
+ bool changed = m_redo_stack.finish( command );
+ mark_undoables( 0 );
+ return changed;
+}
+void start(){
+ m_redo_stack.clear();
+ if ( m_undo_stack.size() == m_undo_levels ) {
+ m_undo_stack.pop_front();
}
- //if the brush is already in the undo
- if (Undo_BrushInUndo(g_lastundo, pBrush))
- return;
- //clone the brush
- brush_t* pClone = Brush_FullClone(pBrush);
- //save the ID of the owner entity
- pClone->ownerId = pBrush->owner->entityId;
- //save the old undo ID for previous undos
- pClone->undoId = pBrush->undoId;
- Brush_AddToList (pClone, &g_lastundo->brushlist);
- //
- g_undoMemorySize += Brush_MemorySize(pClone);
+ startUndo();
+ trackersBegin();
}
-
-/*
-=============
-Undo_AddBrushList
-TTimo: some brushes are just there for UI, and the information is somewhere else
-for patches it's in the patchMesh_t structure, so when we clone the brush we get that information (brush_t::pPatch)
-but: models are stored in pBrush->owner->md3Class, and owner epairs and origin parameters are important
- so, we detect models and push the entity in the undo session (as well as it's BBox brush)
- same for other items like weapons and ammo etc.
-=============
-*/
-void Undo_AddBrushList(brush_t *brushlist)
-{
- // spog - disable undo if undo levels = 0
- if (g_PrefsDlg.m_nUndoLevels == 0)
- {
-#ifdef DBG_UNDO
- Sys_Printf("Undo_AddBrushList: undo is disabled.\n");
-#endif
- return;
+void finish( const char* command ){
+ if ( finishUndo( command ) ) {
+ globalOutputStream() << command << '\n';
}
-
- brush_t *pBrush;
-
- if (!g_lastundo)
- {
- Sys_Printf("Undo_AddBrushList: no last undo.\n");
- return;
+}
+void undo(){
+ if ( m_undo_stack.empty() ) {
+ globalOutputStream() << "Undo: no undo available\n";
}
- if (g_lastundo->entitylist.next != &g_lastundo->entitylist)
+ else
{
- Sys_Printf("Undo_AddBrushList: WARNING adding brushes after entity.\n");
+ Operation* operation = m_undo_stack.back();
+ globalOutputStream() << "Undo: " << operation->m_command.c_str() << "\n";
+
+ startRedo();
+ trackersUndo();
+ operation->m_snapshot.restore();
+ finishRedo( operation->m_command.c_str() );
+ m_undo_stack.pop_back();
+ }
+}
+void redo(){
+ if ( m_redo_stack.empty() ) {
+ globalOutputStream() << "Redo: no redo available\n";
}
- //copy the brushes to the undo
- for (pBrush = brushlist->next ; pBrush != NULL && pBrush != brushlist; pBrush=pBrush->next)
+ else
{
- //if the brush is already in the undo
- //++timo FIXME: when does this happen?
- if (Undo_BrushInUndo(g_lastundo, pBrush))
- continue;
- // do we need to store this brush's entity in the undo?
- // if it's a fixed size entity, the brush that reprents it is not really relevant, it's used for selecting and moving around
- // what we want to store for undo is the owner entity, epairs and origin/angle stuff
- //++timo FIXME: if the entity is not fixed size I don't know, so I don't do it yet
- if (pBrush->owner->eclass->fixedsize == 1)
- Undo_AddEntity( pBrush->owner );
- // clone the brush
- brush_t* pClone = Brush_FullClone(pBrush);
- // save the ID of the owner entity
- pClone->ownerId = pBrush->owner->entityId;
- // save the old undo ID from previous undos
- pClone->undoId = pBrush->undoId;
- Brush_AddToList (pClone, &g_lastundo->brushlist);
- // track memory size used by undo
- g_undoMemorySize += Brush_MemorySize(pClone);
+ Operation* operation = m_redo_stack.back();
+ globalOutputStream() << "Redo: " << operation->m_command.c_str() << "\n";
+
+ startUndo();
+ trackersRedo();
+ operation->m_snapshot.restore();
+ finishUndo( operation->m_command.c_str() );
+ m_redo_stack.pop_back();
}
}
-
-/*
-=============
-Undo_EndBrush
-=============
-*/
-void Undo_EndBrush(brush_t *pBrush)
-{
- // spog - disable undo if undo levels = 0
- if (g_PrefsDlg.m_nUndoLevels == 0)
+void clear(){
+ mark_undoables( 0 );
+ m_undo_stack.clear();
+ m_redo_stack.clear();
+ trackersClear();
+}
+void trackerAttach( UndoTracker& tracker ){
+ ASSERT_MESSAGE( m_trackers.find( &tracker ) == m_trackers.end(), "undo tracker already attached" );
+ m_trackers.insert( &tracker );
+}
+void trackerDetach( UndoTracker& tracker ){
+ ASSERT_MESSAGE( m_trackers.find( &tracker ) != m_trackers.end(), "undo tracker cannot be detached" );
+ m_trackers.erase( &tracker );
+}
+void trackersClear() const {
+ for ( Trackers::const_iterator i = m_trackers.begin(); i != m_trackers.end(); ++i )
{
-#ifdef DBG_UNDO
- Sys_Printf("Undo_EndBrush: undo is disabled.\n");
-#endif
- return;
+ ( *i )->clear();
}
-
-
- if (!g_lastundo)
+}
+void trackersBegin() const {
+ for ( Trackers::const_iterator i = m_trackers.begin(); i != m_trackers.end(); ++i )
{
- //Sys_Printf("Undo_End: no last undo.\n");
- return;
+ ( *i )->begin();
}
- if (g_lastundo->done)
+}
+void trackersUndo() const {
+ for ( Trackers::const_iterator i = m_trackers.begin(); i != m_trackers.end(); ++i )
{
- //Sys_Printf("Undo_End: last undo already finished.\n");
- return;
+ ( *i )->undo();
}
- pBrush->undoId = g_lastundo->id;
}
-
-/*
-=============
-Undo_EndBrushList
-=============
-*/
-void Undo_EndBrushList(brush_t *brushlist)
-{
- // spog - disable undo if undo levels = 0
- if (g_PrefsDlg.m_nUndoLevels == 0)
+void trackersRedo() const {
+ for ( Trackers::const_iterator i = m_trackers.begin(); i != m_trackers.end(); ++i )
{
-#ifdef DBG_UNDO
- Sys_Printf("Undo_EndBrushList: undo is disabled.\n");
-#endif
- return;
+ ( *i )->redo();
}
+}
+};
- if (!g_lastundo)
- {
- //Sys_Printf("Undo_End: no last undo.\n");
- return;
- }
- if (g_lastundo->done)
- {
- //Sys_Printf("Undo_End: last undo already finished.\n");
- return;
- }
- for (brush_t* pBrush = brushlist->next; pBrush != NULL && pBrush != brushlist; pBrush=pBrush->next)
- {
- pBrush->undoId = g_lastundo->id;
- }
+
+void UndoLevels_importString( RadiantUndoSystem& undo, const char* value ){
+ int levels;
+ Int_importString( levels, value );
+ undo.setLevels( levels );
+}
+typedef ReferenceCaller1<RadiantUndoSystem, const char*, UndoLevels_importString> UndoLevelsImportStringCaller;
+void UndoLevels_exportString( const RadiantUndoSystem& undo, const StringImportCallback& importer ){
+ Int_exportString( static_cast<int>( undo.getLevels() ), importer );
}
+typedef ConstReferenceCaller1<RadiantUndoSystem, const StringImportCallback&, UndoLevels_exportString> UndoLevelsExportStringCaller;
-/*
-=============
-Undo_AddEntity
-=============
-*/
-void Undo_AddEntity(entity_t *entity)
-{
- // spog - disable undo if undo levels = 0
- if (g_PrefsDlg.m_nUndoLevels == 0)
- {
-#ifdef DBG_UNDO
- Sys_Printf("Undo_AddEntity: undo is disabled.\n");
-#endif
- return;
- }
+#include "generic/callback.h"
+void UndoLevelsImport( RadiantUndoSystem& self, int value ){
+ self.setLevels( value );
+}
+typedef ReferenceCaller1<RadiantUndoSystem, int, UndoLevelsImport> UndoLevelsImportCaller;
+void UndoLevelsExport( const RadiantUndoSystem& self, const IntImportCallback& importCallback ){
+ importCallback( static_cast<int>( self.getLevels() ) );
+}
+typedef ConstReferenceCaller1<RadiantUndoSystem, const IntImportCallback&, UndoLevelsExport> UndoLevelsExportCaller;
- entity_t* pClone;
- if (!g_lastundo)
- {
- Sys_Printf("Undo_AddEntity: no last undo.\n");
- return;
- }
- //if the entity is already in the undo
- if (Undo_EntityInUndo(g_lastundo, entity))
- return;
- //clone the entity
- pClone = Entity_Clone(entity);
- //save the old undo ID for previous undos
- pClone->undoId = entity->undoId;
- //save the entity ID (we need a full clone)
- pClone->entityId = entity->entityId;
- //
- Entity_AddToList(pClone, &g_lastundo->entitylist);
- //
- g_undoMemorySize += Entity_MemorySize(pClone);
+void Undo_constructPreferences( RadiantUndoSystem& undo, PreferencesPage& page ){
+ page.appendSpinner( "Undo Queue Size", 64, 0, 1024, IntImportCallback( UndoLevelsImportCaller( undo ) ), IntExportCallback( UndoLevelsExportCaller( undo ) ) );
+}
+void Undo_constructPage( RadiantUndoSystem& undo, PreferenceGroup& group ){
+ PreferencesPage page( group.createPage( "Undo", "Undo Queue Settings" ) );
+ Undo_constructPreferences( undo, page );
+}
+void Undo_registerPreferencesPage( RadiantUndoSystem& undo ){
+ PreferencesDialog_addSettingsPage( ReferenceCaller1<RadiantUndoSystem, PreferenceGroup&, Undo_constructPage>( undo ) );
}
-/*
-=============
-Undo_EndEntity
-=============
-*/
-void Undo_EndEntity(entity_t *entity)
+class UndoSystemDependencies : public GlobalPreferenceSystemModuleRef
{
- // spog - disable undo if undo levels = 0
- if (g_PrefsDlg.m_nUndoLevels == 0)
- {
-#ifdef DBG_UNDO
- Sys_Printf("Undo_EndEntity: undo is disabled.\n");
-#endif
- return;
- }
+};
+class UndoSystemAPI
+{
+RadiantUndoSystem m_undosystem;
+public:
+typedef UndoSystem Type;
+STRING_CONSTANT( Name, "*" );
- if (!g_lastundo)
- {
-#ifdef _DEBUG
- Sys_Printf("Undo_End: no last undo.\n");
-#endif
- return;
- }
- if (g_lastundo->done)
- {
-#ifdef _DEBUG
- Sys_Printf("Undo_End: last undo already finished.\n");
-#endif
- return;
- }
- if (entity == world_entity)
- {
- //Sys_Printf("Undo_AddEntity: undo on world entity.\n");
- //NOTE: we never delete the world entity when undoing an operation
- // we only transfer the epairs
- return;
- }
- entity->undoId = g_lastundo->id;
+UndoSystemAPI(){
+ GlobalPreferenceSystem().registerPreference( "UndoLevels", makeIntStringImportCallback( UndoLevelsImportCaller( m_undosystem ) ), makeIntStringExportCallback( UndoLevelsExportCaller( m_undosystem ) ) );
+
+ Undo_registerPreferencesPage( m_undosystem );
+}
+UndoSystem* getTable(){
+ return &m_undosystem;
}
+};
-/*
-=============
-Undo_End
-=============
-*/
-void Undo_End(void)
-{
- // spog - disable undo if undo levels = 0
- if (g_PrefsDlg.m_nUndoLevels == 0)
- {
-#ifdef DBG_UNDO
- Sys_Printf("Undo_End: undo is disabled.\n");
-#endif
- return;
- }
+#include "modulesystem/singletonmodule.h"
+#include "modulesystem/moduleregistry.h"
+typedef SingletonModule<UndoSystemAPI, UndoSystemDependencies> UndoSystemModule;
+typedef Static<UndoSystemModule> StaticUndoSystemModule;
+StaticRegisterModule staticRegisterUndoSystem( StaticUndoSystemModule::instance() );
- if (!g_lastundo)
- {
- //Sys_Printf("Undo_End: no last undo.\n");
- return;
- }
- if (g_lastundo->done)
- {
- //Sys_Printf("Undo_End: last undo already finished.\n");
- return;
- }
- g_lastundo->done = true;
- //undo memory size is bound to a max
- while (g_undoMemorySize > g_undoMaxMemorySize)
- {
- //always keep one undo
- if (g_undolist == g_lastundo) break;
- Undo_FreeFirstUndo();
- }
- //
- //Sys_Printf("undo size = %d, undo memory = %d\n", g_undoSize, g_undoMemorySize);
-}
-/*
-=============
-Undo_Undo
-=============
-*/
-void Undo_Undo(boolean bSilent)
-{
- // spog - disable undo if undo levels = 0
- if (g_PrefsDlg.m_nUndoLevels == 0)
- {
- Sys_Printf("Undo_Undo: undo is disabled.\n");
- return;
- }
- undo_t *undo, *redo;
- brush_t *pBrush, *pNextBrush;
- entity_t *pEntity, *pNextEntity, *pUndoEntity;
- if (!g_lastundo)
- {
- Sys_Printf("Nothing left to undo.\n");
- return;
- }
- if (!g_lastundo->done)
- {
- Sys_Printf("Undo_Undo: WARNING: last undo not yet finished!\n");
- }
- // get the last undo
- undo = g_lastundo;
- if (g_lastundo->prev) g_lastundo->prev->next = NULL;
- else g_undolist = NULL;
- g_lastundo = g_lastundo->prev;
-
- //allocate a new redo
- redo = (undo_t *) malloc(sizeof(undo_t));
- if (!redo) return;
- memset(redo, 0, sizeof(undo_t));
- redo->brushlist.next = &redo->brushlist;
- redo->brushlist.prev = &redo->brushlist;
- redo->entitylist.next = &redo->entitylist;
- redo->entitylist.prev = &redo->entitylist;
- if (g_lastredo) g_lastredo->next = redo;
- else g_redolist = redo;
- redo->prev = g_lastredo;
- redo->next = NULL;
- g_lastredo = redo;
- redo->time = Sys_DoubleTime();
- redo->id = g_redoId++;
- redo->done = true;
- redo->operation = undo->operation;
-
- //reset the redo IDs of all brushes using the new ID
- for (pBrush = active_brushes.next; pBrush != NULL && pBrush != &active_brushes; pBrush = pBrush->next)
- {
- if (pBrush->redoId == redo->id)
- {
- pBrush->redoId = 0;
- }
- }
- for (pBrush = selected_brushes.next; pBrush != NULL && pBrush != &selected_brushes; pBrush = pBrush->next)
- {
- if (pBrush->redoId == redo->id)
- {
- pBrush->redoId = 0;
- }
- }
- //reset the redo IDs of all entities using thew new ID
- for (pEntity = entities.next; pEntity != NULL && pEntity != &entities; pEntity = pEntity->next)
- {
- if (pEntity->redoId == redo->id)
- {
- pEntity->redoId = 0;
- }
- }
- // deselect current sutff
- Select_Deselect();
- // move "created" brushes to the redo
- for (pBrush = active_brushes.next; pBrush != NULL && pBrush != &active_brushes; pBrush=pNextBrush)
- {
- pNextBrush = pBrush->next;
- if (pBrush->undoId == undo->id)
- {
- //Brush_Free(pBrush);
- //move the brush to the redo
- Brush_RemoveFromList(pBrush);
- Brush_AddToList(pBrush, &redo->brushlist);
- //make sure the ID of the owner is stored
- pBrush->ownerId = pBrush->owner->entityId;
- //unlink the brush from the owner entity
- Entity_UnlinkBrush(pBrush);
- }
- }
- // move "created" entities to the redo
- for (pEntity = entities.next; pEntity != NULL && pEntity != &entities; pEntity = pNextEntity)
- {
- pNextEntity = pEntity->next;
- if (pEntity->undoId == undo->id)
- {
- // check if this entity is in the undo
- for (pUndoEntity = undo->entitylist.next; pUndoEntity != NULL && pUndoEntity != &undo->entitylist; pUndoEntity = pUndoEntity->next)
- {
- // move brushes to the undo entity
- if (pUndoEntity->entityId == pEntity->entityId)
- {
- pUndoEntity->brushes.next = pEntity->brushes.next;
- pUndoEntity->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, &redo->entitylist);
- }
- }
- // add the undo entities back into the entity list
- for (pEntity = undo->entitylist.next; pEntity != NULL && pEntity != &undo->entitylist; pEntity = undo->entitylist.next)
- {
- g_undoMemorySize -= Entity_MemorySize(pEntity);
- //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);
- pEntity->redoId = redo->id;
- }
- }
- // add the undo brushes back into the selected brushes
- for (pBrush = undo->brushlist.next; pBrush != NULL && pBrush != &undo->brushlist; pBrush = undo->brushlist.next)
- {
- //Sys_Printf("Owner ID: %i\n",pBrush->ownerId);
- g_undoMemorySize -= Brush_MemorySize(pBrush);
- Brush_RemoveFromList(pBrush);
- Brush_AddToList(pBrush, &active_brushes);
- for (pEntity = entities.next; pEntity != NULL && pEntity != &entities; pEntity = pEntity->next) // fixes broken undo on entities
- {
- //Sys_Printf("Entity ID: %i\n",pEntity->entityId);
- 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
- //++timo FIXME: maybe not, maybe we've lost this entity's owner!
- if (pEntity == NULL || pEntity == &entities)
- {
- Entity_LinkBrush(world_entity, pBrush);
- }
- //build the brush
- //Brush_Build(pBrush);
- Select_Brush(pBrush);
- pBrush->redoId = redo->id;
- }
- if (!bSilent)
- Sys_Printf("%s undone.\n", undo->operation);
- // free the undo
- g_undoMemorySize -= sizeof(undo_t);
- free(undo);
- g_undoSize--;
- g_undoId--;
- if (g_undoId <= 0) g_undoId = 2 * g_undoMaxSize;
- //
- g_bScreenUpdates = true;
- UpdateSurfaceDialog();
- Sys_UpdateWindows(W_ALL);
-}
-/*
-=============
-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");
- }
+
+class undoable_test : public Undoable
+{
+struct state_type : public UndoMemento
+{
+ state_type() : test_data( 0 ){
}
- // 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);
- }
+ state_type( const state_type& other ) : UndoMemento( other ), test_data( other.test_data ){
}
- // 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);
- }
+ void release(){
+ delete this;
}
- // 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);
+
+ int test_data;
+};
+state_type m_state;
+UndoObserver* m_observer;
+public:
+undoable_test()
+ : m_observer( GlobalUndoSystem().observer( this ) ){
}
+~undoable_test(){
+ GlobalUndoSystem().release( this );
+}
+UndoMemento* exportState() const {
+ return new state_type( m_state );
+}
+void importState( const UndoMemento* state ){
+ ASSERT_NOTNULL( state );
-/*
-=============
-Undo_RedoAvailable
-=============
-*/
-int Undo_RedoAvailable(void)
-{
- if (g_lastredo) return true;
- return false;
+ m_observer->save( this );
+ m_state = *( static_cast<const state_type*>( state ) );
}
-int Undo_GetUndoId(void)
-{
- if (g_lastundo)
- return g_lastundo->id;
- return 0;
+void mutate( unsigned int data ){
+ m_observer->save( this );
+ m_state.test_data = data;
}
+};
-/*
-=============
-Undo_UndoAvailable
-=============
-*/
-int Undo_UndoAvailable(void)
+#if 0
+
+class TestUndo
{
- if (g_lastundo)
- {
- if (g_lastundo->done)
- return true;
- }
- return false;
+public:
+TestUndo(){
+ undoable_test test;
+ GlobalUndoSystem().begin( "bleh" );
+ test.mutate( 3 );
+ GlobalUndoSystem().begin( "blah" );
+ test.mutate( 4 );
+ GlobalUndoSystem().undo();
+ GlobalUndoSystem().undo();
+ GlobalUndoSystem().redo();
+ GlobalUndoSystem().redo();
}
+};
+
+TestUndo g_TestUndo;
+
+#endif
projects / xonotic / netradiant.git / blobdiff