1 /* 2 * Copyright (c) 2015 Dmitry Kazakov <dimula73@gmail.com> 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation; either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write to the Free Software 16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 17 */ 18 19 #include "kis_command_utils.h" 20 21 namespace KisCommandUtils 22 { AggregateCommand(KUndo2Command * parent)23 AggregateCommand::AggregateCommand(KUndo2Command *parent) 24 : KUndo2Command(parent), 25 m_firstRedo(true) {} 26 AggregateCommand(const KUndo2MagicString & text,KUndo2Command * parent)27 AggregateCommand::AggregateCommand(const KUndo2MagicString &text, KUndo2Command *parent) 28 : KUndo2Command(text, parent), 29 m_firstRedo(true) {} 30 redo()31 void AggregateCommand::redo() 32 { 33 if (m_firstRedo) { 34 m_firstRedo = false; 35 36 populateChildCommands(); 37 } 38 39 m_store.redoAll(); 40 } 41 undo()42 void AggregateCommand::undo() 43 { 44 m_store.undoAll(); 45 } 46 addCommand(KUndo2Command * cmd)47 void AggregateCommand::addCommand(KUndo2Command *cmd) 48 { 49 if (!cmd) return; 50 m_store.addCommand(cmd); 51 } 52 LambdaCommand(std::function<KUndo2Command * ()> createCommandFunc)53 LambdaCommand::LambdaCommand(std::function<KUndo2Command*()> createCommandFunc) 54 : m_createCommandFunc(createCommandFunc) 55 { 56 57 } 58 LambdaCommand(const KUndo2MagicString & text,std::function<KUndo2Command * ()> createCommandFunc)59 LambdaCommand::LambdaCommand(const KUndo2MagicString &text, 60 std::function<KUndo2Command*()> createCommandFunc) 61 : AggregateCommand(text), 62 m_createCommandFunc(createCommandFunc) 63 { 64 65 } 66 LambdaCommand(const KUndo2MagicString & text,KUndo2Command * parent,std::function<KUndo2Command * ()> createCommandFunc)67 LambdaCommand::LambdaCommand(const KUndo2MagicString &text, 68 KUndo2Command *parent, 69 std::function<KUndo2Command*()> createCommandFunc) 70 : AggregateCommand(text, parent), 71 m_createCommandFunc(createCommandFunc) 72 { 73 } 74 LambdaCommand(KUndo2Command * parent,std::function<KUndo2Command * ()> createCommandFunc)75 LambdaCommand::LambdaCommand(KUndo2Command *parent, 76 std::function<KUndo2Command*()> createCommandFunc) 77 : AggregateCommand(parent), 78 m_createCommandFunc(createCommandFunc) 79 { 80 } 81 populateChildCommands()82 void LambdaCommand::populateChildCommands() 83 { 84 if (m_createCommandFunc) { 85 addCommand(m_createCommandFunc()); 86 } 87 } 88 SkipFirstRedoWrapper(KUndo2Command * child,KUndo2Command * parent)89 SkipFirstRedoWrapper::SkipFirstRedoWrapper(KUndo2Command *child, KUndo2Command *parent) 90 : KUndo2Command(child ? child->text() : kundo2_noi18n("<bug: unnamed command>"), parent), m_firstRedo(true), m_child(child) {} 91 redo()92 void SkipFirstRedoWrapper::redo() 93 { 94 if (m_firstRedo) { 95 m_firstRedo = false; 96 } else { 97 if (m_child) { 98 m_child->redo(); 99 } 100 KUndo2Command::redo(); 101 } 102 } 103 undo()104 void SkipFirstRedoWrapper::undo() 105 { 106 KUndo2Command::undo(); 107 if (m_child) { 108 m_child->undo(); 109 } 110 } 111 SkipFirstRedoBase(bool skipFirstRedo,KUndo2Command * parent)112 SkipFirstRedoBase::SkipFirstRedoBase(bool skipFirstRedo, KUndo2Command *parent) 113 : KUndo2Command(parent), 114 m_firstRedo(skipFirstRedo) 115 { 116 } 117 SkipFirstRedoBase(bool skipFirstRedo,const KUndo2MagicString & text,KUndo2Command * parent)118 SkipFirstRedoBase::SkipFirstRedoBase(bool skipFirstRedo, const KUndo2MagicString &text, KUndo2Command *parent) 119 : KUndo2Command(text, parent), 120 m_firstRedo(skipFirstRedo) 121 { 122 } 123 redo()124 void SkipFirstRedoBase::redo() 125 { 126 if (m_firstRedo) { 127 m_firstRedo = false; 128 } else { 129 redoImpl(); 130 KUndo2Command::redo(); 131 } 132 } 133 undo()134 void SkipFirstRedoBase::undo() 135 { 136 KUndo2Command::undo(); 137 undoImpl(); 138 } 139 setSkipOneRedo(bool value)140 void SkipFirstRedoBase::setSkipOneRedo(bool value) 141 { 142 m_firstRedo = value; 143 } 144 FlipFlopCommand(bool finalizing,KUndo2Command * parent)145 FlipFlopCommand::FlipFlopCommand(bool finalizing, KUndo2Command *parent) 146 : KUndo2Command(parent) 147 { 148 m_currentState = finalizing ? State::FINALIZING : State::INITIALIZING; 149 } 150 FlipFlopCommand(State initialState,KUndo2Command * parent)151 FlipFlopCommand::FlipFlopCommand(State initialState, KUndo2Command *parent) 152 : KUndo2Command(parent), 153 m_currentState(initialState) 154 {} 155 redo()156 void FlipFlopCommand::redo() 157 { 158 if (m_currentState == FlipFlopCommand::State::INITIALIZING) { 159 partA(); 160 } else { 161 partB(); 162 } 163 164 m_firstRedo = false; 165 } 166 undo()167 void FlipFlopCommand::undo() 168 { 169 if (m_currentState == FlipFlopCommand::State::FINALIZING) { 170 partA(); 171 } else { 172 partB(); 173 } 174 } 175 partA()176 void FlipFlopCommand::partA() {} partB()177 void FlipFlopCommand::partB() {} 178 CompositeCommand(KUndo2Command * parent)179 CompositeCommand::CompositeCommand(KUndo2Command *parent) 180 : KUndo2Command(parent) {} 181 ~CompositeCommand()182 CompositeCommand::~CompositeCommand() { 183 qDeleteAll(m_commands); 184 } 185 addCommand(KUndo2Command * cmd)186 void CompositeCommand::addCommand(KUndo2Command *cmd) { 187 if (cmd) { 188 m_commands << cmd; 189 } 190 } 191 redo()192 void CompositeCommand::redo() { 193 KUndo2Command::redo(); 194 Q_FOREACH (KUndo2Command *cmd, m_commands) { 195 cmd->redo(); 196 } 197 } 198 undo()199 void CompositeCommand::undo() { 200 for (auto it = m_commands.rbegin(); it != m_commands.rend(); ++it) { 201 (*it)->undo(); 202 } 203 KUndo2Command::undo(); 204 } 205 206 } 207