diff options
Diffstat (limited to 'indra/llui/llundo.cpp')
| -rw-r--r-- | indra/llui/llundo.cpp | 176 |
1 files changed, 88 insertions, 88 deletions
diff --git a/indra/llui/llundo.cpp b/indra/llui/llundo.cpp index 7c4c183a30..d5ff70d31a 100644 --- a/indra/llui/llundo.cpp +++ b/indra/llui/llundo.cpp @@ -1,24 +1,24 @@ -/** +/** * @file llundo.cpp * * $LicenseInfo:firstyear=2001&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2010, Linden Research, Inc. - * + * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. - * + * * This library 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 * Lesser General Public License for more details. - * + * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * + * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ @@ -36,24 +36,24 @@ //----------------------------------------------------------------------------- LLUndoBuffer::LLUndoBuffer( LLUndoAction (*create_func()), S32 initial_count ) { - mNextAction = 0; - mLastAction = 0; - mFirstAction = 0; - mOperationID = 0; - - mNumActions = initial_count; - - mActions = new LLUndoAction *[initial_count]; - - //initialize buffer with actions - for (S32 i = 0; i < initial_count; i++) - { - mActions[i] = create_func(); - if (!mActions[i]) - { - LL_ERRS() << "Unable to create action for undo buffer" << LL_ENDL; - } - } + mNextAction = 0; + mLastAction = 0; + mFirstAction = 0; + mOperationID = 0; + + mNumActions = initial_count; + + mActions = new LLUndoAction *[initial_count]; + + //initialize buffer with actions + for (S32 i = 0; i < initial_count; i++) + { + mActions[i] = create_func(); + if (!mActions[i]) + { + LL_ERRS() << "Unable to create action for undo buffer" << LL_ENDL; + } + } } //----------------------------------------------------------------------------- @@ -61,12 +61,12 @@ LLUndoBuffer::LLUndoBuffer( LLUndoAction (*create_func()), S32 initial_count ) //----------------------------------------------------------------------------- LLUndoBuffer::~LLUndoBuffer() { - for (S32 i = 0; i < mNumActions; i++) - { - delete mActions[i]; - } + for (S32 i = 0; i < mNumActions; i++) + { + delete mActions[i]; + } - delete [] mActions; + delete [] mActions; } //----------------------------------------------------------------------------- @@ -74,24 +74,24 @@ LLUndoBuffer::~LLUndoBuffer() //----------------------------------------------------------------------------- LLUndoBuffer::LLUndoAction* LLUndoBuffer::getNextAction(BOOL setClusterBegin) { - LLUndoAction *nextAction = mActions[mNextAction]; + LLUndoAction *nextAction = mActions[mNextAction]; - if (setClusterBegin) - { - mOperationID++; - } - mActions[mNextAction]->mClusterID = mOperationID; + if (setClusterBegin) + { + mOperationID++; + } + mActions[mNextAction]->mClusterID = mOperationID; - mNextAction = (mNextAction + 1) % mNumActions; - mLastAction = mNextAction; + mNextAction = (mNextAction + 1) % mNumActions; + mLastAction = mNextAction; - if (mNextAction == mFirstAction) - { - mActions[mFirstAction]->cleanup(); - mFirstAction = (mFirstAction + 1) % mNumActions; - } + if (mNextAction == mFirstAction) + { + mActions[mFirstAction]->cleanup(); + mFirstAction = (mFirstAction + 1) % mNumActions; + } - return nextAction; + return nextAction; } //----------------------------------------------------------------------------- @@ -99,35 +99,35 @@ LLUndoBuffer::LLUndoAction* LLUndoBuffer::getNextAction(BOOL setClusterBegin) //----------------------------------------------------------------------------- BOOL LLUndoBuffer::undoAction() { - if (!canUndo()) - { - return FALSE; - } + if (!canUndo()) + { + return FALSE; + } - S32 prevAction = (mNextAction + mNumActions - 1) % mNumActions; + S32 prevAction = (mNextAction + mNumActions - 1) % mNumActions; - while(mActions[prevAction]->mClusterID == mOperationID) - { - // go ahead and decrement action index - mNextAction = prevAction; + while(mActions[prevAction]->mClusterID == mOperationID) + { + // go ahead and decrement action index + mNextAction = prevAction; - // undo this action - mActions[mNextAction]->undo(); + // undo this action + mActions[mNextAction]->undo(); - // we're at the first action, so we don't know if we've actually undid everything - if (mNextAction == mFirstAction) - { - mOperationID--; - return FALSE; - } + // we're at the first action, so we don't know if we've actually undid everything + if (mNextAction == mFirstAction) + { + mOperationID--; + return FALSE; + } - // do wrap-around of index, but avoid negative numbers for modulo operator - prevAction = (mNextAction + mNumActions - 1) % mNumActions; - } + // do wrap-around of index, but avoid negative numbers for modulo operator + prevAction = (mNextAction + mNumActions - 1) % mNumActions; + } - mOperationID--; + mOperationID--; - return TRUE; + return TRUE; } //----------------------------------------------------------------------------- @@ -135,27 +135,27 @@ BOOL LLUndoBuffer::undoAction() //----------------------------------------------------------------------------- BOOL LLUndoBuffer::redoAction() { - if (!canRedo()) - { - return FALSE; - } + if (!canRedo()) + { + return FALSE; + } - mOperationID++; + mOperationID++; - while(mActions[mNextAction]->mClusterID == mOperationID) - { - if (mNextAction == mLastAction) - { - return FALSE; - } + while(mActions[mNextAction]->mClusterID == mOperationID) + { + if (mNextAction == mLastAction) + { + return FALSE; + } - mActions[mNextAction]->redo(); + mActions[mNextAction]->redo(); - // do wrap-around of index - mNextAction = (mNextAction + 1) % mNumActions; - } + // do wrap-around of index + mNextAction = (mNextAction + 1) % mNumActions; + } - return TRUE; + return TRUE; } //----------------------------------------------------------------------------- @@ -163,12 +163,12 @@ BOOL LLUndoBuffer::redoAction() //----------------------------------------------------------------------------- void LLUndoBuffer::flushActions() { - for (S32 i = 0; i < mNumActions; i++) - { - mActions[i]->cleanup(); - } - mNextAction = 0; - mLastAction = 0; - mFirstAction = 0; - mOperationID = 0; + for (S32 i = 0; i < mNumActions; i++) + { + mActions[i]->cleanup(); + } + mNextAction = 0; + mLastAction = 0; + mFirstAction = 0; + mOperationID = 0; } |