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annotate engine/core/video/fonts/textrenderpool.h @ 697:ecaa4d98f05f tip

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Abstracted the GUI code and refactored the GUIChan-specific code into its own module. * Most of the GUIChan code has been refactored into its own gui/guichan module. However, references to the GuiFont class still persist in the Engine and GuiManager code and these will need further refactoring. * GuiManager is now an abstract base class which specific implementations (e.g. GUIChan) should subclass. * The GUIChan GUI code is now a concrete implementation of GuiManager, most of which is in the new GuiChanGuiManager class. * The GUI code in the Console class has been refactored out of the Console and into the GUIChan module as its own GuiChanConsoleWidget class. The rest of the Console class related to executing commands was left largely unchanged. * Existing client code may need to downcast the GuiManager pointer received from FIFE::Engine::getGuiManager() to GuiChanGuiManager, since not all functionality is represented in the GuiManager abstract base class. Python client code can use the new GuiChanGuiManager.castTo static method for this purpose.
author M. George Hansen <technopolitica@gmail.com>
date Sat, 18 Jun 2011 00:28:40 -1000
parents 5d6b1820b953
children
rev   line source
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1 /***************************************************************************
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2 * Copyright (C) 2005-2008 by the FIFE team *
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3 * http://www.fifengine.de *
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4 * This file is part of FIFE. *
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5 * *
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6 * FIFE is free software; you can redistribute it and/or *
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7 * modify it under the terms of the GNU Lesser General Public *
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8 * License as published by the Free Software Foundation; either *
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9 * version 2.1 of the License, or (at your option) any later version. *
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10 * *
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11 * This library is distributed in the hope that it will be useful, *
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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14 * Lesser General Public License for more details. *
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15 * *
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16 * You should have received a copy of the GNU Lesser General Public *
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17 * License along with this library; if not, write to the *
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18 * Free Software Foundation, Inc., *
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19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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20 ***************************************************************************/
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21
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22 #ifndef FIFE_FONTS_TEXTRENDERPOOL_H
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23 #define FIFE_FONTS_TEXTRENDERPOOL_H
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24
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25 // Standard C++ library includes
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26 #include <list>
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27 #include <string>
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28
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29 // Platform specific includes
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30
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31 // 3rd party library includes
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32 #include <SDL.h>
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33
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34 // FIFE includes
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35 // These includes are split up in two parts, separated by one empty line
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36 // First block: files included from the FIFE root src directory
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37 // Second block: files included from the same folder
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38 #include "util/time/timer.h"
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39
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40 struct SDL_Surface;
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41 namespace FIFE {
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42 class FontBase;
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43 class Image;
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44
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45 /** Generic pool for rendered text
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46 * Caches a number of Images with text, as rendered by a Font.
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47 * Makes sure no more than a maximum number of strings is pooled at a time.
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48 * Automatically removes pooled strings not used for a minute.
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49 * Doesn't use resources (apart from a minimum) if not used after a while.
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50 *
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51 * @todo Should probably use a @c std::map instead of a @c std::list
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52 */
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53 class TextRenderPool {
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54 public:
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55 /** Constructor
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56 * Constructs a pool with a maximum of poolSize entries
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57 */
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58 TextRenderPool(size_t poolSize = 200);
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59
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60 /** Destructor
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61 */
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62 ~TextRenderPool();
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63
654
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64 /** Invalidates all cached text images
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65 */
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66 void invalidateCachedText();
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67
0
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68 /** Get a string image
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69 */
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70 Image* getRenderedText( FontBase* fontbase, const std::string& text);
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71
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72 /** Add a string image
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73 */
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74 void addRenderedText( FontBase* fontbase, const std::string& text, Image* image);
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75
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76 /** Remove entries not used since a minute
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77 * Is a timer callback.
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78 */
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79 void removeOldEntries();
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80
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81 protected:
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82 typedef struct {
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83 std::string text;
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84 SDL_Color color;
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85 bool antialias;
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86 int glyph_spacing;
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87 int row_spacing;
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88 uint32_t timestamp;
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89
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90 Image* image;
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91 } s_pool_entry;
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92
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93 typedef std::list<s_pool_entry> type_pool;
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94 type_pool m_pool;
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95 size_t m_poolSize;
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96 size_t m_poolMaxSize;
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97
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98 Timer m_collectTimer;
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99 };
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100 }
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101 #endif