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annotate src/parpg/gui/inventorygui.py @ 0:1fd2201f5c36

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Initial commit of parpg-core.
author M. George Hansen <technopolitica@gmail.com>
date Sat, 14 May 2011 01:12:35 -0700
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1fd2201f5c36 Initial commit of parpg-core.
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1 #!/usr/bin/env python
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2
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3 # This file is part of PARPG.
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4
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5 # PARPG is free software: you can redistribute it and/or modify
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6 # it under the terms of the GNU General Public License as published by
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7 # the Free Software Foundation, either version 3 of the License, or
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8 # (at your option) any later version.
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9
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10 # PARPG is distributed in the hope that it will be useful,
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11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 # GNU General Public License for more details.
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14
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15 # You should have received a copy of the GNU General Public License
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16 # along with PARPG. If not, see <http://www.gnu.org/licenses/>.
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17
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18 from fife.extensions.pychan.tools import callbackWithArguments as cbwa
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19 from fife.extensions import pychan
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20 from fife.extensions.pychan.attrs import UnicodeAttr
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21
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22 from parpg.gui import drag_drop_data as data_drag
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23 from parpg.objects.base import Container
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24 from parpg.gui.containergui_base import ContainerGUIBase
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25 from parpg.objects.action import ACTIONS
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26
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27 import logging
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28
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29 logger = logging.getLogger('action')
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30
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31 class EquipmentSlot(pychan.VBox):
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32 ATTRIBUTES = pychan.VBox.ATTRIBUTES + [UnicodeAttr('label_text')]
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33
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34 def _setLabelText(self, text):
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35 label = self.findChild()
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36 label.text = unicode(text)
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37 label.resizeToContent()
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38 self.margins = (
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39 int((self.width - label.width) / 2.0),
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40 int((self.height - label.height) / 2.0)
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41 )
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42
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43 def _getLabelText(self):
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44 label = self.findChild()
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45 return label.text
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46
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47 label_text = property(fget=_getLabelText, fset=_setLabelText)
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48
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49 def __init__(self, label_text=u'equipment', min_size=(50, 50),
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50 max_size=(50, 50), margins=None,
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51 background_image="gui/inv_images/inv_background.png",
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52 **kwargs):
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53 pychan.VBox.__init__(self, min_size=min_size, max_size=max_size,
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54 **kwargs)
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55 self.background_image = background_image
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56 label = pychan.Label(text=unicode(label_text))
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57 self.addChild(label)
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58 self.label_text = label_text
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59 self.adaptLayout()
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60 if self.parent is not None:
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61 self.beforeShow()
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62
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63
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64 class InventoryGrid(pychan.VBox):
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65 ATTRIBUTES = pychan.VBox.ATTRIBUTES + [pychan.attrs.PointAttr('grid_size')]
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66
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67 def _setNColumns(self, n_columns):
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68 n_rows = self.grid_size[1]
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69 self.grid_size = (n_columns, n_rows)
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70
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71 def _getNColumns(self):
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72 n_columns = self.grid_size[0]
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73 return n_columns
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74 n_columns = property(fget=_getNColumns, fset=_setNColumns)
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75
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76 def _setNRows(self, n_rows):
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77 n_columns = self.grid_size[0]
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78 self.grid_size = (n_columns, n_rows)
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79
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80 def _getNRows(self):
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81 n_rows = self.grid_size[1]
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82 return n_rows
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83 n_rows = property(fget=_getNRows, fset=_getNColumns)
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84
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85 def _setGridSize(self, grid_size):
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86 n_columns, n_rows = grid_size
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87 self.removeAllChildren()
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88 for row_n in range(n_rows):
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89 row_size = (n_columns * 50, 50)
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90 row = pychan.HBox(min_size=row_size, max_size=row_size,
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91 padding=self.padding)
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92 row.border_size = 1
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93 row.opaque = 0
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94 for column_n in range(n_columns):
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95 slot = pychan.Icon(min_size=(50, 50), max_size=(50, 50))
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96 slot.border_size = 1
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97 row.addChild(slot)
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98 self.addChild(row)
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99 self.min_size = ((n_columns * 50) + 2, (n_rows * 50) + 2)
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100 self.max_size = self.min_size
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101
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102 def _getGridSize(self):
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103 n_rows = len(self.children)
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104 n_columns = len(self.children[0].children)
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105 return (n_rows, n_columns)
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106 grid_size = property(fget=_getGridSize, fset=_setGridSize)
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107
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108 def __init__(self, grid_size=(2, 2), padding=0, **kwargs):
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109 pychan.VBox.__init__(self, padding=padding, **kwargs)
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110 self.opaque = 0
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111 self.grid_size = grid_size
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112 self.border_size = 1
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113
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114
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115 class InventoryGUI(ContainerGUIBase):
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116 def __init__(self, controller, inventory, callbacks):
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117 super(InventoryGUI, self).__init__(controller, "gui/inventory.xml")
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118 self.engine = controller.engine
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119 self.inventory_shown = False
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120 render_backend = self.engine.getRenderBackend()
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121 screen_mode = render_backend.getCurrentScreenMode()
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122 screen_width, screen_height = (screen_mode.getWidth(),
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123 screen_mode.getHeight())
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124 widget_width, widget_height = self.gui.size
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125 self.gui.position = ((screen_width - widget_width) / 2,
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126 (screen_height - widget_height) / 2)
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127
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128 def toggleInventory(self, toggleImage=True):
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129 """Pause the game and enter the inventory screen, or close the
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130 inventory screen and resume the game.
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131 @type toggleImage: bool
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132 @param toggleImage:
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133 Call toggleInventoryCallback if True. Toggling via a
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134 keypress requires that we toggle the Hud inventory image
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135 explicitly. Clicking on the Hud inventory button toggles the
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136 image implicitly, so we don't change it.
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137 @return: None"""
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138 if not self.inventory_shown:
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139 self.showInventory()
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140 self.inventory_shown = True
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141 else:
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142 self.closeInventory()
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143 self.inventory_shown = False
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144
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145 def showInventory(self):
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146 self.gui.show()
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147
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148 def closeInventory(self):
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149 self.gui.hide()
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150
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151
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152 class _InventoryGUI(ContainerGUIBase):
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153 """Inventory GUI class"""
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154 def __init__(self, controller, inventory, callbacks):
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155 """Initialise the instance.
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156 @param controller: Current Controller
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157 @type controller: Class derived from ControllerBase
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158 @type inventory: Inventory
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159 @param inventory: An inventory object to be displayed and manipulated
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160 @type callbacks: dict
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161 @param callbacks: a dict of callbacks
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162 refreshReadyImages:
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163 Function that will make the ready slots on the HUD
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164 reflect those within the inventory
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165 toggleInventoryButton:
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166 Function that will toggle the state of the inventory button
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167 @return: None"""
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168 super(InventoryGUI, self).__init__(controller, "gui/inventory.xml")
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169 self.engine = controller.engine
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170 self.readyCallback = callbacks['refreshReadyImages']
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171 self.toggleInventoryButtonCallback = callbacks['toggleInventoryButton']
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172 self.original_cursor_id = self.engine.getCursor().getId()
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173
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174 self.inventory_shown = False
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175 events_to_map = {}
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176 self.inventory_storage = inventory
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177
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178 # Buttons of inventory arranged by slots
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179
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180 self.slot_buttons = {'head': ('Head',), 'chest': ('Body',),
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181 'left_arm': ('LeftHand',),
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182 'right_arm': ('RightHand',),
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183 'hips' : ('Belt',), 'left_leg': ('LeftFoot',),
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184 'right_leg': ('RightFoot',),
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185 'left_hand': ('LeftHeld',),
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186 'right_hand': ('RightHeld',),
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187 'backpack': ('A1', 'A2', 'A3', 'A4', 'A5',
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188 'B1', 'B2', 'B3', 'B4', 'B5',
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189 'C1', 'C2', 'C3', 'C4', 'C5',
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190 'D1', 'D2', 'D3', 'D4', 'D5'),
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191 'ready': ('Ready1', 'Ready2', 'Ready3', 'Ready4')
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192 }
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193 # the images that should be used for the buttons when they are "empty"
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194 self.slot_empty_images = {'head':'gui/inv_images/inv_head.png',
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195 'chest':'gui/inv_images/inv_torso.png',
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196 'left_arm':'gui/inv_images/inv_lhand.png',
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197 'right_arm':'gui/inv_images/inv_rhand.png',
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198 'hips':'gui/inv_images/inv_belt.png',
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199 'left_leg':'gui/inv_images/inv_lfoot.png',
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200 'right_leg':'gui/inv_images/inv_rfoot.png',
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201 'left_hand':'gui/inv_images/inv_litem.png',
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202 'right_hand':'gui/inv_images/inv_ritem.png',
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203 'backpack':'gui/inv_images/inv_backpack.png',
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204 'ready':'gui/inv_images/inv_belt_pouches.png',
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205 }
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206 self.updateInventoryButtons()
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207
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208 for slot in self.slot_buttons:
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209 for _, button in enumerate(self.slot_buttons[slot]):
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210 events_to_map[button] = cbwa(self.dragDrop, button)
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211 events_to_map[button + "/mouseReleased"] = \
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212 self.showContextMenu
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213 events_to_map['close_button'] = self.closeInventoryAndToggle
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214 self.gui.mapEvents(events_to_map)
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215 # TODO: Why the commented out code?
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216 # self.resetMouseCursor()
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217
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218 def updateImages(self):
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219 self.updateInventoryButtons()
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220
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221 def updateInventoryButtons (self):
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222 for slot in self.slot_buttons:
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223 for index, button in enumerate(self.slot_buttons[slot]):
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224 widget = self.gui.findChild(name=button)
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225 widget.slot = slot
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226 widget.index = index
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227 widget.item = self.inventory_storage.getItemsInSlot(widget.slot,
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228 widget.index)
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229 self.updateImage(widget)
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230
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231 def updateImage(self, button):
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232 if (button.item == None):
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233 image = self.slot_empty_images[button.slot]
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234 else:
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235 image = button.item.getInventoryThumbnail()
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236 button.up_image = image
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237 button.down_image = image
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238 button.hover_image = image
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239
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240 def closeInventory(self):
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241 """Close the inventory.
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242 @return: None"""
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243 self.gui.hide()
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244
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245 def closeInventoryAndToggle(self):
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246 """Close the inventory screen.
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247 @return: None"""
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248 self.closeInventory()
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249 self.toggleInventoryButtonCallback()
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250 self.inventory_shown = False
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251
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252 def toggleInventory(self, toggleImage=True):
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253 """Pause the game and enter the inventory screen, or close the
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254 inventory screen and resume the game.
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255 @type toggleImage: bool
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256 @param toggleImage:
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257 Call toggleInventoryCallback if True. Toggling via a
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258 keypress requires that we toggle the Hud inventory image
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259 explicitly. Clicking on the Hud inventory button toggles the
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260 image implicitly, so we don't change it.
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261 @return: None"""
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262 if not self.inventory_shown:
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263 self.showInventory()
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264 self.inventory_shown = True
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265 else:
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266 self.closeInventory()
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267 self.inventory_shown = False
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268
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269 if toggleImage:
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270 self.toggleInventoryButtonCallback()
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271
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272 def showInventory(self):
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273 """Show the inventory.
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274 @return: None"""
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275 self.updateInventoryButtons()
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276 self.gui.show()
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277
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278 def dragObject(self, obj):
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279 """Drag the selected object.
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280 @type obj: string
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281 @param obj: The name of the object within
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282 the dictionary 'self.buttons'
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283 @return: None"""
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284 # get the widget from the inventory with the name obj
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285 drag_widget = self.gui.findChild(name = obj)
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286 drag_item = drag_widget.item
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287 # only drag if the widget is not empty
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288 if (drag_item != None):
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289 # get the item that the widget is 'storing'
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290 data_drag.dragged_item = drag_widget.item
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291 # get the up and down images of the widget
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292 up_image = drag_widget.up_image
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293 down_image = drag_widget.down_image
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294 # set the mouse cursor to be the widget's image
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295 self.controller.setMouseCursor(up_image.source,down_image.source)
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296 data_drag.dragged_image = up_image.source
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297 data_drag.dragging = True
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298 data_drag.dragged_widget = drag_widget
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299 data_drag.source_container = self.inventory_storage
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300
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301 self.inventory_storage.takeItem(drag_widget.item)
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302 # after dragging the 'item', set the widgets' images
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303 # so that it has it's default 'empty' images
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304 drag_widget.item = None
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305 self.updateImage(drag_widget)
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306
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307
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308 def dropObject(self, obj):
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309 """Drops the object being dropped
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310 @type obj: string
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311 @param obj: The name of the object within
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312 the dictionary 'self.buttons'
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313 @return: None"""
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314 drop_widget = self.gui.findChild(name = obj)
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315 drop_slot, drop_index = drop_widget.slot, drop_widget.index
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316 replace_item = None
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317 try :
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318 if data_drag.dragging:
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319 inventory = self.inventory_storage
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320 drag_item = data_drag.dragged_item
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321 #this will get the replacement item and data for drag_drop if
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322 ## there is an item All ready occupying the slot
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323 if not inventory.isSlotEmpty(drop_slot, drop_index):
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324 #get the item and then remove it from the inventory
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325 replace_item = inventory.getItemsInSlot \
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326 (drop_slot, drop_index)
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327 self.dragObject(obj)
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328 self.inventory_storage.moveItemToSlot(drag_item,
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329 drop_slot,
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330 drop_index)
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331
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332 if drop_widget.slot == 'ready':
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333 self.readyCallback()
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334
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335 if replace_item == None:
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336 self.controller.resetMouseCursor()
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337 data_drag.dragging = False
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338 except Container.TooBig :
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339 logger.warning("%s too big to fit "
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340 "into %s" % (data_drag.dragged_item,
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341 drop_widget.slot))
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342 except (Container.SlotBusy, Container.ItemSelf):
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343 pass
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344 self.updateInventoryButtons()
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345
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346 def createMenuItems(self, item, actions):
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347 """Creates context menu items for the InventoryGUI"""
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348 menu_actions = super(InventoryGUI, self).createMenuItems(item, actions)
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349 param_dict = {}
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350 param_dict["controller"] = self.controller
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351 param_dict["commands"] = {}
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352 param_dict["item"] = item
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353 param_dict["container_gui"] = self
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354 menu_actions.append(["Drop",
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355 "Drop",
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356 self.executeMenuItem,
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357 ACTIONS["DropFromInventory"](**param_dict)])
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358 return menu_actions
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359
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360 def getImage(self, name):
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361 """Return a current image from the inventory
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362 @type name: string
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363 @param name: name of image to get
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364 @return: None"""
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365 return self.gui.findChild(name = name)