ToolbarActions.java

/*******************************************************************************
 * This file is part of logisim-evolution.
 *
 *   logisim-evolution 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 3 of the License, or
 *   (at your option) any later version.
 *
 *   logisim-evolution 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 logisim-evolution.  If not, see <http://www.gnu.org/licenses/>.
 *
 *   Original code by Carl Burch (http://www.cburch.com), 2011.
 *   Subsequent modifications by :
 *     + Haute École Spécialisée Bernoise
 *       http://www.bfh.ch
 *     + Haute École du paysage, d'ingénierie et d'architecture de Genève
 *       http://hepia.hesge.ch/
 *     + Haute École d'Ingénierie et de Gestion du Canton de Vaud
 *       http://www.heig-vd.ch/
 *   The project is currently maintained by :
 *     + REDS Institute - HEIG-VD
 *       Yverdon-les-Bains, Switzerland
 *       http://reds.heig-vd.ch
 *******************************************************************************/

package com.cburch.logisim.gui.opts;

import com.cburch.logisim.file.ToolbarData;
import com.cburch.logisim.proj.Action;
import com.cburch.logisim.proj.Project;
import com.cburch.logisim.tools.Tool;

class ToolbarActions {
	private static class AddSeparator extends Action {
		ToolbarData toolbar;
		int pos;

		AddSeparator(ToolbarData toolbar, int pos) {
			this.toolbar = toolbar;
			this.pos = pos;
		}

		@Override
		public void doIt(Project proj) {
			toolbar.addSeparator(pos);
		}

		@Override
		public String getName() {
			return Strings.get("toolbarInsertSepAction");
		}

		@Override
		public void undo(Project proj) {
			toolbar.remove(pos);
		}
	}

	private static class AddTool extends Action {
		ToolbarData toolbar;
		Tool tool;
		int pos;

		AddTool(ToolbarData toolbar, Tool tool) {
			this.toolbar = toolbar;
			this.tool = tool;
		}

		@Override
		public void doIt(Project proj) {
			pos = toolbar.getContents().size();
			toolbar.addTool(pos, tool);
		}

		@Override
		public String getName() {
			return Strings.get("toolbarAddAction");
		}

		@Override
		public void undo(Project proj) {
			toolbar.remove(pos);
		}
	}

	private static class MoveTool extends Action {
		ToolbarData toolbar;
		int oldpos;
		int dest;

		MoveTool(ToolbarData toolbar, int oldpos, int dest) {
			this.toolbar = toolbar;
			this.oldpos = oldpos;
			this.dest = dest;
		}

		@Override
		public Action append(Action other) {
			if (other instanceof MoveTool) {
				MoveTool o = (MoveTool) other;
				if (this.toolbar == o.toolbar && this.dest == o.oldpos) {
					// TODO if (this.oldpos == o.dest) return null;
					return new MoveTool(toolbar, this.oldpos, o.dest);
				}
			}
			return super.append(other);
		}

		@Override
		public void doIt(Project proj) {
			toolbar.move(oldpos, dest);
		}

		@Override
		public String getName() {
			return Strings.get("toolbarMoveAction");
		}

		@Override
		public boolean shouldAppendTo(Action other) {
			if (other instanceof MoveTool) {
				MoveTool o = (MoveTool) other;
				return this.toolbar == o.toolbar && o.dest == this.oldpos;
			} else {
				return false;
			}
		}

		@Override
		public void undo(Project proj) {
			toolbar.move(dest, oldpos);
		}
	}

	private static class RemoveSeparator extends Action {
		ToolbarData toolbar;
		int pos;

		RemoveSeparator(ToolbarData toolbar, int pos) {
			this.toolbar = toolbar;
			this.pos = pos;
		}

		@Override
		public void doIt(Project proj) {
			toolbar.remove(pos);
		}

		@Override
		public String getName() {
			return Strings.get("toolbarRemoveSepAction");
		}

		@Override
		public void undo(Project proj) {
			toolbar.addSeparator(pos);
		}
	}

	private static class RemoveTool extends Action {
		ToolbarData toolbar;
		Object removed;
		int which;

		RemoveTool(ToolbarData toolbar, int which) {
			this.toolbar = toolbar;
			this.which = which;
		}

		@Override
		public void doIt(Project proj) {
			removed = toolbar.remove(which);
		}

		@Override
		public String getName() {
			return Strings.get("toolbarRemoveAction");
		}

		@Override
		public void undo(Project proj) {
			if (removed instanceof Tool) {
				toolbar.addTool(which, (Tool) removed);
			} else if (removed == null) {
				toolbar.addSeparator(which);
			}
		}
	}

	public static Action addSeparator(ToolbarData toolbar, int pos) {
		return new AddSeparator(toolbar, pos);
	}

	public static Action addTool(ToolbarData toolbar, Tool tool) {
		return new AddTool(toolbar, tool);
	}

	public static Action moveTool(ToolbarData toolbar, int src, int dest) {
		return new MoveTool(toolbar, src, dest);
	}

	public static Action removeSeparator(ToolbarData toolbar, int pos) {
		return new RemoveSeparator(toolbar, pos);
	}

	public static Action removeTool(ToolbarData toolbar, int pos) {
		return new RemoveTool(toolbar, pos);
	}

	private ToolbarActions() {
	}

}