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annotate mde/gui/widget/TextWidget.d @ 65:891211f034f2

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Changes to widgets: widgets may now get strings as creation data. Strings for TextWidgets can be set in files (in a temporary mannor).
author Diggory Hardy <diggory.hardy@gmail.com>
date Sun, 29 Jun 2008 15:40:37 +0100
parents 66d555da083e
children 159775502bb4
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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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8
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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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15
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16 /** Basic text widget and supporting code for widgets containing text.
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17 *
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18 * All content widgets have one (at least for basic content widgets) Content, from
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19 * mde.gui.content.Items . */
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20 module mde.gui.widget.TextWidget;
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21
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22 import mde.gui.widget.Widget;
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23 import mde.gui.exception;
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24 import mde.gui.renderer.IRenderer;
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25 import mde.gui.content.Content;
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26
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27 import mde.font.font;
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28
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29 import tango.io.Stdout;
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30
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31 /// Adapter to ease use of ContentText
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32 struct ContentAdapter(ContentT : IContent) {
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33 void set (char[] cID, int col) {
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34 if (font is null) font = FontStyle.get("default");
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36 static if (is(ContentT == ContentText)) {
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37 content = getContentText (cID);
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38 } else static if (is(ContentT == ContentInt)) {
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39 content = getContentInt (cID);
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40 } else static assert (false, "Unsupported content type");
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41 colour = Colour (cast(ubyte) (col >> 16u),
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42 cast(ubyte) (col >> 8u),
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43 cast(ubyte) col );
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44 }
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45
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46 void getDimensions (out wdsize w, out wdsize h) {
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47 font.updateBlock (content.toString, textCache);
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48 w = cast(wdim) textCache.w;
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49 h = cast(wdim) textCache.h;
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50 }
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51
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52 void draw (wdabs x, wdabs y) {
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53 font.textBlock (x,y, content.toString, textCache, colour);
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54 }
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55
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56 ContentT content;
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57 TextBlock textCache;
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58 Colour colour;
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59 static FontStyle font;
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60 }
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61
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62 /// Basic text widget
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63 class ContentWidget(ContentT : IContent) : Widget
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64 {
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65 /** Constructor for a widget containing [fixed] content.
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66 *
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67 * Widget uses the initialisation data:
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68 * [widgetID, contentID, colour]
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69 * where contentID is an ID for the string ID of the contained content
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70 * and colour is an 8-bit-per-channel RGB colour of the form 0xRRGGBB. */
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71 this (IWindow wind, int[] data) {
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72 if (data.length != 3) throw new WidgetDataException;
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73 text.set (wind.getWidgetString(data[1]), data[2]);
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74 text.getDimensions (mw, mh);
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75 super (wind,data);
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76 }
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77
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78 void draw () {
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79 super.draw();
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80 text.draw (x,y);
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81 }
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82
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83 protected:
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84 ContentAdapter!(ContentT) text;
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85 }
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86
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87 alias ContentWidget!(ContentText) TextWidget;
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88 alias ContentWidget!(ContentInt) IntWidget;