117 lines
3.3 KiB
C++
117 lines
3.3 KiB
C++
/****************************************************************************
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**
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** This file is part of the LibreCAD project, a 2D CAD program
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**
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** Copyright (C) 2010 R. van Twisk (librecad@rvt.dds.nl)
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** Copyright (C) 2001-2003 RibbonSoft. All rights reserved.
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**
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**
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** This file may be distributed and/or modified under the terms of the
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** GNU General Public License version 2 as published by the Free Software
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** Foundation and appearing in the file gpl-2.0.txt included in the
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** packaging of this file.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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**
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** This copyright notice MUST APPEAR in all copies of the script!
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**
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**********************************************************************/
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#ifndef RS_BLOCKLIST_H
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#define RS_BLOCKLIST_H
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#include <QList>
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class QString;
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class RS_Block;
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class RS_BlockListListener;
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/**
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* List of blocks.
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*
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* @see RS_Block
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*
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* @author Andrew Mustun
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*/
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class RS_BlockList {
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public:
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RS_BlockList(bool owner=false);
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virtual ~RS_BlockList() = default;
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void clear();
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/**
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* @return Number of blocks available.
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*/
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int count() const;
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/**
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* @return Block at given position or NULL if i is out of range.
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*/
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RS_Block* at(int i);
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RS_Block* at(int i) const;
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//! \{ \brief range based loop
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QList<RS_Block*>::iterator begin();
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QList<RS_Block*>::iterator end();
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QList<RS_Block*>::const_iterator begin()const;
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QList<RS_Block*>::const_iterator end()const;
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//! \}
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void activate(const QString& name);
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void activate(RS_Block* block);
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//! @return The active block of NULL if no block is activated.
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RS_Block* getActive();
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virtual bool add(RS_Block* block, bool notify=true);
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virtual void addNotification();
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virtual void remove(RS_Block* block);
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virtual bool rename(RS_Block* block, const QString& name);
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//virtual void editBlock(RS_Block* block, const RS_Block& source);
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RS_Block* find(const QString& name);
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QString newName(const QString& suggestion = "");
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void toggle(const QString& name);
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void toggle(RS_Block* block);
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void freezeAll(bool freeze);
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void addListener(RS_BlockListListener* listener);
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void removeListener(RS_BlockListListener* listener);
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bool isOwner() const {return owner;}
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void setOwner(bool ow) {owner = ow;}
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/**
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* Sets the block list modified status to 'm'.
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*/
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void setModified(bool m);
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/**
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* @retval true The block list has been modified.
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* @retval false The block list has not been modified.
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*/
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bool isModified() const;
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friend std::ostream& operator << (std::ostream& os, RS_BlockList& b);
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private:
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//! Is the list owning the blocks?
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bool owner;
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//! Blocks in the graphic
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QList<RS_Block*> blocks;
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//! List of registered BlockListListeners
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QList<RS_BlockListListener*> blockListListeners;
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//! Currently active block
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RS_Block* activeBlock;
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/** Flag set if the block list was modified and not yet saved. */
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bool modified;
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};
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#endif
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