Mercurial > fife-parpg

annotate engine/extensions/pychan/__init__.py @ 243:a822b1a6e3cd

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Switched to FreeSans for rio de hola. Rio de hola is broken apparently.
author phoku@33b003aa-7bff-0310-803a-e67f0ece8222
date Wed, 25 Mar 2009 08:48:31 +0000
parents 756b895e1dab
children 92c7ce181881
rev   line source
228
756b895e1dab Merged unicode-support back into trunk.
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1 # -*- coding: utf-8 -*-
0
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2 # coding: utf-8
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3
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4 """\
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5 Pythonic Guichan Wrapper - PyChan
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6 =================================
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7
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8 Pythonic GUI API.
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9
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10 Features
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11 --------
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12 - Simpler Interface
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13 - Very Basic XML Format support
205
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14 - Basic Layout Engine
0
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15 - Pseudo-Synchronous Dialogs.
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16 - Automagic background tiling (WIP)
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17 - Basic Styling support.
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18 - Simple Font Handling
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19
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20 TODO
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21 ----
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22 - Make setting parent attribute imply containment relation.
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23 - Finalize Widget.execute
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24
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25 - Documentation ( Allways not enough :-( )
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26 - Handle Image Fonts
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27 - Move Font config files to XML, too ...
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28
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29 - Implement real Menus
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30 - Implement StackWidget
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31 - Then implement TabWidget
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32
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33 - GridLayout
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34 - Table
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35
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36 BUGS
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37 ----
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38 - Focus problems with Widget.execute.
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39 - Font.glyph_spacing is rendered incorrectly.
205
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40 - Is this a bug? At least inconvenient. MouseEntered events are not distributed for freshly shown widget.
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41 - It just looks bad.
0
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42
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43 Problems
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44 --------
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45 - Reference counting problems again -sigh-
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46 ... and thus possible leaks.
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47 - High amount of code reuse -> Complex code
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48 - Needs at least new style classes and other goodies.
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49 - Missing documentation on:
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50 - Styling
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51 - ScrollArea
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52 - Fonts
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53
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54 How to use
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55 ==========
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56
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57 At its core you only need a few functions.
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58 After setting up FIFE you need to initalize
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59 pychan. After that you can load a GUI from an
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60 XML file. Please see the documentation of L{loadXML}
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61 for the details of the XML format
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62 ::
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63 import pychan
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64 pychan.init(fifeEngine)
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65 guiElement = pychan.loadXML("contents/gui/myform.xml")
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66
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67 The resulting guiElement can be shown and hidden with the
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68 obvious L{widgets.Widget.show} and L{widgets.Widget.hide} methods.
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69
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70 To get a specific widget you have to give it a name in the XML
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71 definition and use that to extract the widget from the returned
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72 GUI element.
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73 ::
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74 okButton = guiElement.findChild(name="okButton")
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75 myInput = guiElement.findChild(name="myInput")
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76
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77 The data is extracted and set via direct attribute access.
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78 These are using the python property technique to hide
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79 behind the scenes manipulations. Please keep in mind that
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80 the Layout engine and the exact way the widgets are displayed
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81 is somewhat limited.
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82 ::
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83 myInput.text = "Blahblah"
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84 myList.items = ["1","2"]
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85 guiElement.position = (80,90)
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86
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87 A dialog without an OK button would be futile - so here's how
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88 you hook widget events to function calls. Every widget
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89 has a L{widgets.Widget.capture} method, which will directly call the passed
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90 function when an widget event occurs. As a convenience a
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91 L{widgets.Widget.mapEvents} function will batch the L{widgets.Widget.findChild} and
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92 L{widgets.Widget.capture} calls in an obvious way.
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93 ::
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94 myButton.capture( application.quit )
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95 guiElement.mapEvents({
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96 'okButton' : self.applyAndClose,
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97 'closeButton': guiElement.hide
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98 })
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99
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100 Other important places to look for information:
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101 - L{widgets.Widget} - Attributes explained.
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102 - L{loadXML} - Explain the XML format.
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103 - L{LayoutBase} - Working of the layout engine.
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104
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105 Initialization, data distribution and collection
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106 ================================================
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107
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108 Very often a dialogs text fields, labels and listboxes have to be filled with data
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109 after the creation of the dialog. This can be a tiresome process.
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110 After a dialog has executed, B{other} attributes have to be read out again,
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111 this to can be tiresome. PyChan simplifies both processes. But it treats them as three
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112 processes. One is setting the data that will never be read out again - called B{initial data} -
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113 the text of a checkbox or the list of a listBox are good examples. The second is setting the
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114 data that is mutable by the user and may be read out again - for example the state of a checkbox
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115 or the selected index in a list. The third and final process is collection of the user-mutable data::
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116 guiElement.distributeInitialData({
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117 'myListBox' : choices,
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118 'myLabel' : map.name,
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119 })
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120 guiElement.distributeData({
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121 'myTextField' : map.description
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122 })
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123 # ... process dialog.
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124 map.description, choice = guiElement.collectData('myListBox','myTextField')
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125 print "You selected:",choice,", good choice!"
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126
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127 See L{widgets.Widget.distributeData},L{widgets.Widget.distributeInitialData},
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128 L{widgets.Widget.collectData} and L{widgets.Widget.collectDataAsDict}.
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129
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130 Styling and font handling
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131 =========================
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132
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133 Note: These features are B{work in progress} and likely to change.
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134
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135 A style is a set of rules for matching widgets and a set of attributes
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136 applied to them after creation. The attributes can be any of the given
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137 attributes. Matching happens currently only by the widget class name
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138 itself.
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139
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140 As an example the following style - written as a python data structure -
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141 will set the border size of all labels to 10::
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142 style = {
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143 'ListBox' : { # Matches all listboxes
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144 'border_size : 10 # After creation call lisbox.border_size = 10
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145 }
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146 }
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147
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148 As a convenience you can use the string B{default} to match all widget
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149 classes and thus - for example apply a common font::
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150 style = {
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151 'default' : {
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152 'font' : 'console_small'
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153 }
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154 }
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155
205
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156 A new style is added to pychan with L{internal.Manager.addStyle}.
218
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157 You can set a new default style by adding a style with the name 'default'.
205
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158
0
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159 The font is set via a string identifier pulled from a font definition
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160 in a PyChan configuration file. You have to load these by calling
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161 L{loadFonts} in your startup code::
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162 import pychan
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163 pychan.init( fifeEngine )
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164 pychan.loadFonts( "content/fonts/console.fontdef" )
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165
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166 The font definition files are in the following format::
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167 [Font/FIRST_FONT_NAME]
188
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168
0
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169 type: truetype
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170 source: path/to/font.ttf
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171 # The font size in point
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172 size: 30
188
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173
0
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174 [Font/SECOND_FONT_NAME]
188
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175
0
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176 type: truetype
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177 source: content/fonts/samanata.ttf
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178 size: 8
188
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179
0
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180 # And so on.
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181
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182 I hope the example is clear enough ... Other options you can set:
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183
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184 - color: A list of comma separated integers from 0 to 255. White (255,255,255) by default.
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185 - antialias: Zero or one - enable or disable antialialising. Enabled by default.
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186 - row_spacing: Extra height per row. Default is 0.
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187 - glyph_spacing: Extra space per glyph. Default is 0. B{Currently buggy in the engine!}
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188
228
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189 Unicode and internationalisation
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190 ================================
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191
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192 All text that is visible and editable by the player has to be a unicode object.
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193 All text that is used internally, e.g. widget names, have to be normal strings.
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194
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195 While PyChan will not raise an exception, if you do not follow this guideline,
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196 you are encouraged to so.
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197
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198 You can change the way unicode encoding errors are handled by using the
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199 function L{setUnicodePolicy}.
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200
0
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201
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202 Widget hierachy
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203 ===============
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204
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205 Every widget can be contained in another container widget like L{Window}, L{VBox},
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206 L{HBox}, L{Container} or L{ScrollArea}. Container widgets can contain any number
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207 of widgets. Thus we have a tree like structure of the widgets - which finally makes
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208 up the window or frame that is placed on the screen.
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209
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210 In PyChan widgets are supposed to be manipulated via the root of this hierachy,
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211 so that the actual layout can be changed in the XML files without hassle.
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212 It can be compared to how HTML works.
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213
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214 These bits and pieces connect things up::
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215 - name - A (hopefully) unique name in the widget hierachy
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216 - findChildren - The accessor method to find widgets by name or any other attribute.
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217 - _parent - The parent widget in the widget hierachy
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218 - deepApply - The method used to walk over the widget hierachy. You have to reimplement
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219 this in case you want to provide custom widgets.
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220
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221 Wrapping machinery
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222 ==================
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223
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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224 The wrapping mechanism works be redirecting attribute access to the Widget
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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225 derived classes to a C{real_widget} member variable which in turn is an instance
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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226 of the SWIG wrapped Guichan widget.
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227
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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228 To ensure the real widget has already been constructed, when the wrapping machinery
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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229 is already in use, this has to be the first attribute to set in the constructors.
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230 This leads to a reversed construction sequence as the super classes constructor
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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231 has to be invoked I{after} the subclass specific construction has taken place.
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232
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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233 """
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234
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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235 __all__ = [
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236 'loadXML',
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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237 'loadFonts',
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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238 'init',
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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239 'manager'
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240 ]
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241
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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242 from widgets import *
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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243 from exceptions import *
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244
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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245 from fonts import loadFonts
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246
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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247 # Text munging befor adding it to TextBoxes
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248
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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249 ### Initialisation ###
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250
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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251 manager = None
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252 def init(engine,debug=False):
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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253 """
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254 This has to be called before any other pychan methods can be used.
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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255 It sets up a manager object which is available under pychan.manager.
188
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nihathrael@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 172
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256
0
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257 @param engine: The FIFE engine object.
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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258 """
205
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259 from compat import _munge_engine_hook
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260 from internal import Manager
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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261 global manager
205
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parents: 188
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262
54bfd1015b35 * PyChan event handling rework (part I)
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parents: 188
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263 manager = Manager(_munge_engine_hook(engine),debug)
0
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264
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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265 # XML Loader
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266
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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267 from xml.sax import saxutils, handler
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268 from traceback import print_exc
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269
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270 def traced(f):
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271 """
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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272 Simple decorator that prints tracebacks for any exceptions occuring in a
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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273 function. Useful to avoid the infamous 'finally pops bad exception'
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274 that shadows the real cause of the error ...
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275 """
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276 def traced_f(*args,**kwargs):
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277 try:
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278 return f(*args,**kwargs)
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279 except:
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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280 print_exc()
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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281 raise
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282 return traced_f
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283
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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284 class _GuiLoader(object, handler.ContentHandler):
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285 def __init__(self):
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286 super(_GuiLoader,self).__init__()
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287 self.root = None
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288 self.indent = ""
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289 self.stack = []
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290
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291 def _printTag(self,name,attrs):
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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292 if not manager.debug: return
228
756b895e1dab Merged unicode-support back into trunk.
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293 attrstrings = map(lambda t: '%s="%s"' % tuple(map(unicode,t)),attrs.items())
0
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294 tag = "<%s " % name + " ".join(attrstrings) + ">"
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295 print self.indent + tag
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296
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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297 def _resolveTag(self,name):
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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298 """ Resolve a XML Tag to a PyChan GUI class. """
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299 cls = WIDGETS.get(name,None)
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300 if cls is None and name == "Spacer":
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301 cls = Spacer
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302 if cls is None:
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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303 raise GuiXMLError("Unknown GUI Element: %s" % name)
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304 return cls
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305
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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306 def _setAttr(self,obj,name,value):
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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307 if not hasattr(obj.__class__,'ATTRIBUTES'):
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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308 raise PyChanException("The registered widget/spacer class %s does not supply an 'ATTRIBUTES'."
188
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nihathrael@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
309 % repr(obj))
0
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diff changeset
310 try:
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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311 for attr in obj.ATTRIBUTES:
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312 if attr.name == name:
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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313 attr.set(obj,value)
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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314 return
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315 except GuiXMLError, e:
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316 raise GuiXMLError("Error parsing attr '%s'='%s' for '%s': '%s'" % (name,value,obj,e))
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317 raise GuiXMLError("Unknown GUI Attribute '%s' on '%s'" % (name,repr(obj)))
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318
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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319 def startElement(self, name, attrs):
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diff changeset
320 self._printTag(name,attrs)
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321 cls = self._resolveTag(name)
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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322 if issubclass(cls,Widget):
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
323 self.stack.append('gui_element')
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
324 self._createInstance(cls,name,attrs)
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
325 elif cls == Spacer:
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
326 self.stack.append('spacer')
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
327 self._createSpacer(cls,name,attrs)
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
328 else:
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
329 self.stack.append('unknown')
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
330 self.indent += " "*4
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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331
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
332 def _createInstance(self,cls,name,attrs):
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
333 obj = cls(parent=self.root)
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
334 for k,v in attrs.items():
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
335 self._setAttr(obj,k,v)
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
336
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
337 if self.root:
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
338 self.root.addChild( obj )
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
339 self.root = obj
129
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 0
diff changeset
340
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
341 def _createSpacer(self,cls,name,attrs):
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
342 obj = cls(parent=self.root)
205
54bfd1015b35 * PyChan event handling rework (part I)
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
343 for k,v in attrs.items():
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 188
diff changeset
344 self._setAttr(obj,k,v)
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diff changeset
345
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
346 if hasattr(self.root,'add'):
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
347 self.root.addSpacer(obj)
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
348 else:
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
349 raise GuiXMLError("A spacer needs to be added to a container widget!")
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
350 self.root = obj
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
351
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
352 def endElement(self, name):
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
353 self.indent = self.indent[:-4]
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
354 if manager.debug: print self.indent + "</%s>" % name
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
355 if self.stack.pop() in ('gui_element','spacer'):
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
356 self.root = self.root._parent or self.root
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
357
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
358 def loadXML(filename_or_stream):
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
359 """
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
360 Loads a PyChan XML file and generates a widget from it.
129
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 0
diff changeset
361
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
362 @param filename_or_stream: A filename or a file-like object (for example using StringIO).
129
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 0
diff changeset
363
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
364 The XML format is very dynamic, in the sense, that the actual allowed tags and attributes
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
365 depend on the PyChan code.
129
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 0
diff changeset
366
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
367 So when a tag C{Button} is encountered, an instance of class Button will be generated,
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
368 and added to the parent object.
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
369 All attributes will then be parsed and then set in the following way:
129
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 0
diff changeset
370
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
371 - position,size,min_size,max_size,margins - These are assumed to be comma separated tuples
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
372 of integers.
171
456634bbc430 - small fix for pychan documentation (colors can also be quadruples)
chewie@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 157
diff changeset
373 - foreground_color,base_color,background_color - These are assumed to be triples or quadruples of comma
213
b0c4e6e41659 - yet another fix for the "funny typo" - of course it should be RGBA, not RBGA ...
chewie@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 205
diff changeset
374 separated integers. (triples: r,g,b; quadruples: r,g,b,a)
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
375 - opaque,border_size,padding - These are assumed to be simple integers.
129
9a1529f9625e * Indentation patch by GreyGhost
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 0
diff changeset
376
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
377 All other attributes are set verbatim as strings on the generated instance.
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
378 In case a Widget does not accept an attribute to be set or the attribute can not be parsed
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
379 correctly, the function will raise a GuiXMLError.
129
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 0
diff changeset
380
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
381 In short::
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
382 <VBox>
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
383 <Button text="X" min_size="20,20" base_color="255,0,0" border_size="2" />
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
384 </VBox>
129
9a1529f9625e * Indentation patch by GreyGhost
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 0
diff changeset
385
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
386 This result in the following code executed::
129
9a1529f9625e * Indentation patch by GreyGhost
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 0
diff changeset
387
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
388 vbox = VBox(parent=None)
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
389 button = Button(parent=vbox)
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
390 button.text = "X"
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
391 button.min_size = (20,20)
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
392 button.base_color = (255,0,0)
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
393 button.border_size = 2
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
394 vbox.add( button )
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
395 """
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
396 from xml.sax import parse
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
397 loader = _GuiLoader()
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
398 parse(filename_or_stream,loader)
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
399 return loader.root
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
400
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
401 def setupModalExecution(mainLoop,breakFromMainLoop):
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
402 """
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
403 Setup the synchronous dialog execution feature.
129
9a1529f9625e * Indentation patch by GreyGhost
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 0
diff changeset
404
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
405 You can enable synchronous dialog execution by
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
406 passing to functions to this function.
129
9a1529f9625e * Indentation patch by GreyGhost
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 0
diff changeset
407
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
408 @param mainLoop: Function - This is regarded as the applications
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
409 main loop, which should be able to be called recursively.
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
410 It should not take no arguments and return the argument
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
411 passed to the second function (breakFromMainLoop).
129
9a1529f9625e * Indentation patch by GreyGhost
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 0
diff changeset
412
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
413 @param breakFromMainLoop: Function -This function should cause the
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
414 first function to finish and return the passed argument.
129
9a1529f9625e * Indentation patch by GreyGhost
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 0
diff changeset
415
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
416 With these to functions dialogs can be executed synchronously.
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
417 See L{widgets.Widget.execute}.
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
418 """
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
419 if not manager:
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
420 raise InitializationError("PyChan is not initialized yet.")
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
421 manager.setupModalExecution(mainLoop,breakFromMainLoop)
228
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 218
diff changeset
422
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 218
diff changeset
423 def setUnicodePolicy(*policy):
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 218
diff changeset
424 """
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 218
diff changeset
425 Possible options are:
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 218
diff changeset
426 - 'strict' meaning that encoding errors raise a UnicodeEncodeError.
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 218
diff changeset
427 - 'ignore' all encoding errors will be silently ignored.
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 218
diff changeset
428 - 'replace' all errors are replaced by the next argument.
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 218
diff changeset
429
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 218
diff changeset
430 For further information look at the python documentation,
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 218
diff changeset
431 especially L{codecs.register_error}.
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 218
diff changeset
432
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 218
diff changeset
433 Example:
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 218
diff changeset
434 pychan.setUnicodePolicy('replace','?')
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 218
diff changeset
435 """
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 218
diff changeset
436 if not manager:
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 218
diff changeset
437 raise InitializationError("PyChan is not initialized yet.")
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 218
diff changeset
438 manager.unicodePolicy = policy
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 218
diff changeset
439
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 218
diff changeset
440
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 218
diff changeset
441