117 lines
2.8 KiB
C++
117 lines
2.8 KiB
C++
/**
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* @author Edouard DUPIN
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*
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* @copyright 2010, Edouard DUPIN, all right reserved
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*
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* @license GPL v3 (see license file)
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*/
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#include <appl/debug.h>
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#include <appl/global.h>
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#include <EdnBuf.h>
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#undef __class__
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#define __class__ "EdnBuf{History}"
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int32_t EdnBuf::Undo(void)
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{
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int32_t nbElement = m_historyUndo.size();
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//APPL_DEBUG("EdnBuf::Undo Request id="<<nbElement);
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int32_t posDest = -1;
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if (0 == nbElement) {
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// nothing to do ...
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APPL_ERROR("EdnBuf::Undo No more History");
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return -1;
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}
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nbElement--;
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if (m_historyUndo[nbElement] == NULL) {
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APPL_ERROR("EdnBuf::Undo find empty history == > remove it");
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m_historyUndo.popBack();
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return -1;
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}
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int32_t pos = m_historyUndo[nbElement]->getPos();
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int32_t nbDeleted = m_historyUndo[nbElement]->getnbDeleted();
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int32_t nbInserted = m_historyUndo[nbElement]->getnbInserted();
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etk::Vector<int8_t> deletedText;
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m_historyUndo[nbElement]->getData(deletedText);
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m_isUndoProcessing = true;
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if (0 == nbInserted) {
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// just add data at position ...
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if (0 == nbDeleted) {
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APPL_DEBUG("EdnBuf::Undo nothing to do in UNDO");
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} else {
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insert(pos, deletedText);
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posDest = pos + nbDeleted;
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}
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} else {
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if (0 == nbDeleted) {
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// only remove data
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remove(pos, pos+nbInserted);
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posDest = pos;
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} else {
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// replace data
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Replace(pos, pos+nbInserted, deletedText);
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posDest = pos + nbDeleted;
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}
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}
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// remove element in the list :
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delete(m_historyUndo[nbElement]);
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m_historyUndo.popBack();
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m_isUndoProcessing = false;
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return posDest;
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}
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int32_t EdnBuf::Redo(void)
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{
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int32_t nbElement = m_historyRedo.size();
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//APPL_DEBUG("EdnBuf::Redo Request id="<<nbElement);
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int32_t posDest = -1;
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if (0 == nbElement) {
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// nothing to do ...
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APPL_DEBUG("EdnBuf::Redo No more History");
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return -1;
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}
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nbElement--;
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if (m_historyRedo[nbElement] == NULL) {
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APPL_ERROR("EdnBuf::Redo find empty history == > remove it");
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m_historyRedo.popBack();
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return -1;
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}
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int32_t pos = m_historyRedo[nbElement]->getPos();
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int32_t nbDeleted = m_historyRedo[nbElement]->getnbDeleted();
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int32_t nbInserted = m_historyRedo[nbElement]->getnbInserted();
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etk::Vector<int8_t> deletedText;
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m_historyRedo[nbElement]->getData(deletedText);
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m_isRedoProcessing = true;
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if (0 == nbInserted) {
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// just add data at position ...
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if (0 == nbDeleted) {
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APPL_ERROR("EdnBuf::Redo nothing to do in REDO");
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} else {
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insert(pos, deletedText);
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posDest = pos + nbDeleted;
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}
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} else {
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if (0 == nbDeleted) {
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// only remove data
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remove(pos, pos+nbInserted);
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posDest = pos;
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} else {
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// replace data
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Replace(pos, pos+nbInserted, deletedText);
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posDest = pos + nbDeleted;
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}
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}
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// remove element in the list :
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delete(m_historyRedo[nbElement]);
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m_historyRedo.popBack();
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m_isRedoProcessing = false;
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return posDest;
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}
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