mirror of
https://github.com/UberGames/GtkRadiant.git
synced 2024-11-23 04:12:06 +00:00
6ee91d153e
git-svn-id: svn://svn.icculus.org/gtkradiant/GtkRadiant/trunk@44 8a3a26a2-13c4-0310-b231-cf6edde360e5
590 lines
12 KiB
C++
590 lines
12 KiB
C++
/*
|
|
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
|
|
{
|
|
INTEGER_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;
|
|
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;
|
|
|
|
#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;
|
|
|
|
|
|
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));
|
|
}
|
|
|
|
class UndoSystemDependencies : public GlobalPreferenceSystemModuleRef
|
|
{
|
|
};
|
|
|
|
class UndoSystemAPI
|
|
{
|
|
RadiantUndoSystem m_undosystem;
|
|
public:
|
|
typedef UndoSystem Type;
|
|
STRING_CONSTANT(Name, "*");
|
|
|
|
UndoSystemAPI()
|
|
{
|
|
GlobalPreferenceSystem().registerPreference("UndoLevels", makeIntStringImportCallback(UndoLevelsImportCaller(m_undosystem)), makeIntStringExportCallback(UndoLevelsExportCaller(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
|
|
|