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annotate engine/core/view/rendererbase.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 16c2b3ee59ce
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_RENDERERBASE_H
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23 #define FIFE_RENDERERBASE_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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44919eb74c40 making header files self-sufficient so they can be compiled in isolation.
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27 #include <vector>
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29 // 3rd party library includes
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30
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31 // FIFE includes
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32 // These includes are split up in two parts, separated by one empty line
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33 // First block: files included from the FIFE root src directory
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34 // Second block: files included from the same folder
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35
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16c2b3ee59ce * Merged the view performance branch back into trunk. fixes[ticket:419]
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36 #include "renderitem.h"
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37
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38 namespace FIFE {
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39 class Camera;
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40 class Layer;
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41 class Map;
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42 class Instance;
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43 class RenderBackend;
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44
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45 class RendererBase;
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46 /** RendererListener allows reaction to changes in renderer
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47 * Having this implemented via callback mechanism should speed up the rendering a bit
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48 * (e.g. no need to sort pipeline order per each frame)
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49 */
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50 class IRendererListener {
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51 public:
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52 virtual ~IRendererListener() {}
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53
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54 /** Renderer's pipeline position has been changed
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55 */
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56 virtual void onRendererPipelinePositionChanged(RendererBase* renderer) = 0;
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57
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58 /** Renderer is enabled / disabled
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59 */
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60 virtual void onRendererEnabledChanged(RendererBase* renderer) = 0;
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61 };
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62
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63 /** Interface to class owning the renderers
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64 * Used to get correct subclass of renderer in scripting side (via renderer's static method)
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65 */
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66 class IRendererContainer {
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67 public:
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68 virtual ~IRendererContainer() {}
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69
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70 /** Returns renderer with given name
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71 */
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72 virtual RendererBase* getRenderer(const std::string& renderername) = 0;
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73 };
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74
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75 /** Base class for all view renderers
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76 * View renderer renders one aspect of the view shown on screen
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77 */
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78 class RendererBase {
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79 public:
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80 /** Constructor
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81 * @param renderbackend to use
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82 * @param position position for this renderer in rendering pipeline
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83 */
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84 RendererBase(RenderBackend* renderbackend, int position);
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85
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86 /** Copy Constructor
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87 */
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88 RendererBase(const RendererBase& old);
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89
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90 /** Makes copy of this renderer
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91 */
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92 virtual RendererBase* clone() = 0;
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93
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94 /** Destructor
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95 */
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96 virtual ~RendererBase() {};
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97
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98 /** This method is called by the view to ask renderer to draw its rendering aspect based on
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99 * given parameters. Renderers receive non-clipped instance stack since there is no
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100 * way to know which information is relevant for the renderer. E.g. effect renderer
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101 * might need to know offscreen instance locations to be able to draw radiation coming from
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102 * some instance not visible on the screen.
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103 *
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104 * @param cam camera view to draw
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105 * @param layer current layer to be rendered
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106 * @param instances instances on the current layer
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107 * @ see setPipelinePosition
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108 */
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109 virtual void render(Camera* cam, Layer* layer, RenderList& instances) = 0;
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110
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111 /** Name of the renderer
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112 */
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113 virtual std::string getName() = 0;
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114
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115 /** Gets renderer position in the rendering pipeline
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116 */
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117 int getPipelinePosition() const { return m_pipeline_position; }
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118
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119 /** Sets renderer position in the rendering pipeline
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120 * Pipeline position defines in which order view calls the renderers when update occurs
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121 * Note that renderers are called once per rendered layer, thus to update the
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122 * whole screen, renderer might receive multiple calls
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123 */
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124 void setPipelinePosition(int position);
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125
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126 /** Enables renderer
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127 */
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128 virtual void setEnabled(bool enabled);
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129
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130 /** Resets information in the renderer
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131 */
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132 virtual void reset() {}
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133
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134 /** Is renderer enabled
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135 */
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136 bool isEnabled() const { return m_enabled; }
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137
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138 /** Sets listener for renderer
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139 */
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140 void setRendererListener(IRendererListener* listener) { m_listener = listener; }
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141
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142 /** Adds active layer to renderer. Only active layers are rendered
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143 */
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144 void addActiveLayer(Layer* layer);
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145
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146 /** Removes active layer from renderer.
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147 */
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148 void removeActiveLayer(Layer* layer);
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149
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150 /** Clears all active layers from renderer
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151 */
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152 void clearActiveLayers();
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153
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154 /** Activates all layers from given elevation
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155 */
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156 void activateAllLayers(Map* elevation);
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157
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158 /** Returns if given layer is currently activated
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159 */
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160 bool isActivedLayer(Layer* layer);
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161
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162 /** Returns list of activated layer
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163 */
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164 std::list<Layer*> getActiveLayers() const {return m_active_layers;}
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165
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166
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167 protected:
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168 RendererBase();
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169
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170 std::list<Layer*> m_active_layers;
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171 RenderBackend* m_renderbackend;
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172
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173 private:
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174 bool m_enabled;
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175 int m_pipeline_position;
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176 IRendererListener* m_listener;
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177 };
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178 }
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179
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180 #endif