krita
kis_shear_visitor.h
00001 /* 00002 * Copyright (c) 2006 Bart Coppens <kde@bartcoppens.be> 00003 * 00004 * This program is free software; you can redistribute it and/or modify 00005 * it under the terms of the GNU General Public License as published by 00006 * the Free Software Foundation; either version 2 of the License, or 00007 * (at your option) any later version. 00008 * 00009 * This program is distributed in the hope that it will be useful, 00010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 * GNU General Public License for more details. 00013 * 00014 * You should have received a copy of the GNU General Public License 00015 * along with this program; if not, write to the Free Software 00016 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 00017 */ 00018 00019 #ifndef KIS_SHEAR_VISITOR_H_ 00020 #define KIS_SHEAR_VISITOR_H_ 00021 00022 #include "kis_types.h" 00023 #include "kis_progress_subject.h" 00024 #include "kis_layer_visitor.h" 00025 #include "kis_transform_worker.h" 00026 #include "kis_filter_strategy.h" 00027 #include "kis_undo_adapter.h" 00028 #include "kis_transaction.h" 00029 #include "kis_rotate_visitor.h" 00030 00031 class KisShearVisitor : public KisLayerVisitor { 00032 public: 00033 KisShearVisitor(double xshear, double yshear, KisProgressDisplayInterface *progress) 00034 : m_xshear(xshear), m_yshear(yshear), m_progress(progress), m_strategy(0), m_undo(0) {}; 00035 00036 void setStrategy(KisFilterStrategy* strategy) { m_strategy = strategy; } 00037 void setUndoAdapter(KisUndoAdapter* undo) { m_undo = undo; } 00038 public: 00039 virtual bool visit(KisPaintLayer* layer) { 00040 KisPaintDeviceSP dev = layer->paintDevice(); 00041 if(!dev) 00042 return true; 00043 00044 KisFilterStrategy* strategy = 0; 00045 if (m_strategy) 00046 strategy = m_strategy; 00047 else 00048 strategy = new KisMitchellFilterStrategy; 00049 00050 KisTransaction* t = 0; 00051 00052 if (m_undo && m_undo->undo()) 00053 t = new KisTransaction("", dev.data()); 00054 00055 //Doesn't do anything, internally transforms x and y shear to 0 each :-/// 00056 //KisTransformWorker w(dev, 1.0, 1.0, m_xshear, m_yshear, 0, 0, 0, m_progress, strategy); 00057 //w.run(); 00058 00059 KisRotateVisitor v; 00060 v.visitKisPaintDevice(dev); 00061 v.shear(m_xshear, m_yshear, m_progress); 00062 00063 if (m_undo && m_undo->undo()) 00064 m_undo->addCommand(t); 00065 00066 if (!m_strategy) 00067 delete strategy; 00068 00069 layer->setDirty(); 00070 00071 return true; 00072 } 00073 00074 virtual bool visit(KisGroupLayer* layer) { 00075 KisLayerSP child = layer->firstChild(); 00076 00077 while(child) 00078 { 00079 child->accept(*this); 00080 child = child->nextSibling(); 00081 } 00082 return true; 00083 } 00084 00085 virtual bool visit(KisPartLayer*) { return true; } 00086 virtual bool visit(KisAdjustmentLayer *) { return true; } 00087 private: 00088 double m_xshear; 00089 double m_yshear; 00090 KisProgressDisplayInterface* m_progress; 00091 KisFilterStrategy* m_strategy; 00092 KisUndoAdapter* m_undo; 00093 }; 00094 00095 #endif // KIS_SHEAR_VISITOR_H_