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annotate mde/content/Services.d @ 105:08651e8a8c51

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Quit button, big changes to content system. Moved mde.gui.content to mde.content to reflect it's not only used by the gui. Split Content module into Content and AStringContent. New AContent and EventContent class. Callbacks are now generic and implemented in AContent. Renamed TextContent to StringContent and ValueContent to AStringContent.
author Diggory Hardy <diggory.hardy@gmail.com>
date Sat, 29 Nov 2008 12:36:39 +0000
parents mde/gui/content/Services.d@7cab2af4ba21
children 1125ba603af6
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1 /* LICENSE BLOCK
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2 Part of mde: a Modular D game-oriented Engine
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3 Copyright © 2007-2008 Diggory Hardy
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4
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5 This program is free software: you can redistribute it and/or modify it under the terms
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6 of the GNU General Public License as published by the Free Software Foundation, either
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7 version 2 of the License, or (at your option) any later version.
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9 This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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10 without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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11 See the GNU General Public License for more details.
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12
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13 You should have received a copy of the GNU General Public License
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14 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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16 // NOTE: This module is currently unused and untested.
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17 // FIXME: write unittests
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18
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19 /** Content services.
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20 *
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21 * Services act on a content, potentially modifying it. They have the form:
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22 * ---
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23 * bool service (ref Content c);
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24 * ---
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25 * where c is the content acted on, and the return value is true if the content was changed (useful
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26 * to know whether caches need updating or not).
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27 */
105
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28 module mde.content.Services;
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30 bool copy (ref Content c) {
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31 // Put a duplicate on the clipboard, so later changes don't affect what's on the clipboard.
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32 clipboard = c.dup;
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33 return false;
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34 }
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35
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36 bool paste (ref ContentText c) {
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37 if (clipboard is null)
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38 return false; // no item on clipboard, so don't do anything
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39 c = clipboard.toText;
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40 return true;
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41 }
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43 bool paste (ref ContentInt c) {
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44 if (clipboard is null)
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45 return false; // no item on clipboard, so don't do anything
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46 c = clipboard.toInt;
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47 return true;
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48 }
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49
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50 bool link (ref ContentText c) {
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51 if (clipboard is null)
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52 return false; // no item on clipboard, so don't do anything
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53 c = clipboard;
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54 return true;
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55 }
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56
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57 Content clipboard;