1 | /* rcacheactor.h |
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2 | * |
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3 | * Copyright (c) 2003 Michael Vogt <mvo@debian.org> |
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4 | * |
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5 | * Author: Michael Vogt <mvo@debian.org> |
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6 | * |
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7 | * This program is free software; you can redistribute it and/or |
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8 | * modify it under the terms of the GNU General Public License as |
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9 | * published by the Free Software Foundation; either version 2 of the |
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10 | * License, or (at your option) any later version. |
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11 | * |
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12 | * This program is distributed in the hope that it will be useful, |
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 | * GNU General Public License for more details. |
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16 | * |
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17 | * You should have received a copy of the GNU General Public License |
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18 | * along with this program; if not, write to the Free Software |
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19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
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20 | * USA |
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21 | */ |
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22 | |
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23 | #ifndef RPACKAGELISTACTOR_H |
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24 | #define RPACKAGELISTACTOR_H |
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25 | |
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26 | #include "rpackagelister.h" |
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27 | #include <iostream> |
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28 | |
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29 | class RPackageListActor : public RPackageObserver { |
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30 | |
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31 | public: |
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32 | |
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33 | enum listEvent { |
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34 | PKG_ADDED, |
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35 | PKG_REMOVED |
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36 | }; |
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37 | |
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38 | protected: |
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39 | |
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40 | RPackageLister *_lister; |
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41 | vector<RPackage *> _lastDisplayList; |
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42 | |
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43 | public: |
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44 | |
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45 | virtual void run(vector<RPackage *> &List, int listEvent) = 0; |
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46 | |
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47 | virtual void notifyPreFilteredChange() { |
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48 | updateState(); |
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49 | }; |
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50 | |
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51 | virtual void notifyPostFilteredChange(); |
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52 | virtual void notifyChange(RPackage *pkg) {}; |
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53 | |
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54 | virtual void updateState() { |
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55 | _lastDisplayList = _lister->getPackages(); |
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56 | }; |
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57 | |
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58 | RPackageListActor(RPackageLister *lister) |
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59 | : _lister(lister) { |
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60 | _lister->registerObserver(this); |
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61 | }; |
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62 | |
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63 | virtual ~RPackageListActor() { |
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64 | _lister->unregisterObserver(this); |
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65 | }; |
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66 | }; |
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67 | |
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68 | |
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69 | #endif |
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70 | |
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71 | // vim:sts=3:sw=3 |
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