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