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+/*
+ * Copyright (c) 2006 Bart Coppens <kde@bartcoppens.be>
+ *
+ * This program 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.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef KIS_SHEAR_VISITOR_H_
+#define KIS_SHEAR_VISITOR_H_
+
+#include "kis_types.h"
+#include "kis_progress_subject.h"
+#include "kis_layer_visitor.h"
+#include "kis_transform_worker.h"
+#include "kis_filter_strategy.h"
+#include "kis_undo_adapter.h"
+#include "kis_transaction.h"
+#include "kis_rotate_visitor.h"
+
+class KisShearVisitor : public KisLayerVisitor {
+public:
+ KisShearVisitor(double xshear, double yshear, KisProgressDisplayInterface *progress)
+ : m_xshear(xshear), m_yshear(yshear), m_progress(progress), m_strategy(0), m_undo(0) {};
+
+ void setStrategy(KisFilterStrategy* strategy) { m_strategy = strategy; }
+ void setUndoAdapter(KisUndoAdapter* undo) { m_undo = undo; }
+public:
+ virtual bool visit(KisPaintLayer* layer) {
+ KisPaintDeviceSP dev = layer->paintDevice();
+ if(!dev)
+ return true;
+
+ KisFilterStrategy* strategy = 0;
+ if (m_strategy)
+ strategy = m_strategy;
+ else
+ strategy = new KisMitchellFilterStrategy;
+
+ KisTransaction* t = 0;
+
+ if (m_undo && m_undo->undo())
+ t = new KisTransaction("", dev.data());
+
+ //Doesn't do anything, internally transforms x and y shear to 0 each :-///
+ //KisTransformWorker w(dev, 1.0, 1.0, m_xshear, m_yshear, 0, 0, 0, m_progress, strategy);
+ //w.run();
+
+ KisRotateVisitor v;
+ v.visitKisPaintDevice(dev);
+ v.shear(m_xshear, m_yshear, m_progress);
+
+ if (m_undo && m_undo->undo())
+ m_undo->addCommand(t);
+
+ if (!m_strategy)
+ delete strategy;
+
+ layer->setDirty();
+
+ return true;
+ }
+
+ virtual bool visit(KisGroupLayer* layer) {
+ KisLayerSP child = layer->firstChild();
+
+ while(child)
+ {
+ child->accept(*this);
+ child = child->nextSibling();
+ }
+ return true;
+ }
+
+ virtual bool visit(KisPartLayer*) { return true; }
+ virtual bool visit(KisAdjustmentLayer *) { return true; }
+private:
+ double m_xshear;
+ double m_yshear;
+ KisProgressDisplayInterface* m_progress;
+ KisFilterStrategy* m_strategy;
+ KisUndoAdapter* m_undo;
+};
+
+#endif // KIS_SHEAR_VISITOR_H_