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annotate mde/gui/widget/TextWidget.d @ 111:1655693702fc

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Resolved ticket #4, allowing widgets to reload strings and recalculate sizes mid-run. Removed prefinalize and finalize and added setup as the new second initialization phase, which can be re-run.
author Diggory Hardy <diggory.hardy@gmail.com>
date Sat, 06 Dec 2008 17:41:42 +0000
parents 6acd96f8685f
children fe061009029d
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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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960206198cbd Documentation changes only. (Idea for new gui.content.Items module; unused gl.texture module commented out.)
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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.content.Content;
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26
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27 import tango.util.log.Log : Log, Logger;
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28 private Logger logger;
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29 static this () {
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30 logger = Log.getLogger ("mde.gui.widget.TextWidget");
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31 }
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33 /** Base text widget.
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34 *
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35 * Little use currently except to ease future additions. */
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36 class ATextWidget : AWidget
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37 {
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38 /** Set the adapter first:
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39 * adapter = mgr.renderer.getAdapter ("string", 0xRRGGBB); */
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40 this (IWidgetManager mgr, widgetID id, WidgetData data) {
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41 super (mgr, id, data);
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42 }
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44 /** Recalculates dims if the renderer changed. */
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45 bool setup (uint,uint flags) {
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46 if (flags & 1) {
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47 adapter.getDimensions (mw, mh);
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48 if (mw != w || mh != h) {
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49 w = mw;
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50 h = mh;
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51 return true;
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52 }
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53 }
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54 return false;
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55 }
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57 void draw () {
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58 super.draw();
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59 adapter.draw (x,y);
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60 }
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61
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62 protected:
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63 IRenderer.TextAdapter adapter;
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64 }
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67 /// Basic text widget
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68 class TextLabelWidget : ATextWidget
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69 {
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70 /** Constructor for a widget containing [fixed] content.
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71 *
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72 * Widget uses the initialisation data:
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73 * [widgetID, contentID, colour]
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74 * where contentID is an ID for the string ID of the contained content
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75 * and colour is an 8-bit-per-channel RGB colour of the form 0xRRGGBB. */
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76 this (IWidgetManager mgr, widgetID id, WidgetData data) {
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77 WDCheck (data, 2, 1);
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78 adapter = mgr.renderer.getAdapter (data.ints[1]);
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79 adapter.text = data.strings[0];
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80 super (mgr, id, data);
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81 }
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82 }
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84 /// Basic widget displaying a label from a content.
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85 class ContentLabelWidget : ATextWidget
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86 {
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87 this (IWidgetManager mgr, widgetID id, WidgetData data, IContent c) {
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88 WDCheck (data, 3, 0);
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89 content = c;
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90 if (!content) throw new ContentException ();
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91 index = data.ints[1];
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92 adapter = mgr.renderer.getAdapter (data.ints[2]);
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93 super (mgr, id,data);
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94 }
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96 bool setup (uint n, uint flags) {
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97 if (!(flags & 3)) return false; // string or renderer (and possibly font) changed
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98 adapter.text = content.toString(index);
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99 return super.setup (n, 3); // force redimensioning
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100 }
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102 protected:
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103 IContent content;
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104 int index;
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105 }