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462
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1 ;;; generic-widgets.el --- Generic UI building
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2
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3 ;; Copyright (C) 2000 Free Software Foundation
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4
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5 ;; Maintainer: William Perry <wmperry@gnu.org>
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6 ;; Keywords: extensions, dumped
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7
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8 ;; This file is part of XEmacs.
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9
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10 ;; XEmacs is free software; you can redistribute it and/or modify it
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11 ;; under the terms of the GNU General Public License as published by
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12 ;; the Free Software Foundation; either version 2, or (at your option)
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13 ;; any later version.
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14
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15 ;; XEmacs is distributed in the hope that it will be useful, but
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16 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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18 ;; General Public License for more details.
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19
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20 ;; You should have received a copy of the GNU General Public License
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21 ;; along with XEmacs; see the file COPYING. If not, write to the Free
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22 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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23 ;; 02111-1307, USA.
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24
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25 ;;; Synched up with: Not in FSF
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26
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27 ;;; Commentary:
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28
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29 ;; This file is dumped with XEmacs.
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30
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502
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31 (globally-declare-fboundp
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32 '(gtk-label-new
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33 gtk-widget-show-all gtk-signal-connect
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34 gtk-window-new gtk-container-add gtk-vbox-new gtk-hbox-new
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35 gtk-box-pack-start gtk-notebook-new
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36 gtk-notebook-set-homogeneous-tabs gtk-notebook-set-scrollable
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37 gtk-notebook-set-show-tabs gtk-notebook-set-tab-pos
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38 gtk-notebook-append-page gtk-text-new gtk-text-set-editable
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39 gtk-text-set-word-wrap gtk-text-set-line-wrap
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40 gtk-widget-set-style gtk-text-insert gtk-label-set-line-wrap
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41 gtk-label-set-justify gtk-radio-button-new
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42 gtk-radio-button-group gtk-check-button-new
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43 gtk-toggle-button-new gtk-button-new gtk-progress-bar-new
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44 gtk-progress-bar-set-orientation gtk-progress-bar-set-bar-style))
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45
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462
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46 (defun build-ui (ui)
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47 (if (null ui)
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48 (gtk-label-new "[empty]")
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49 (let ((builder-func (intern-soft (format "build-ui::%s" (car ui))))
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50 (widget nil))
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51 (if (and builder-func (fboundp builder-func))
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52 (progn
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53 (setq widget (funcall builder-func ui))
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54 (setcdr ui (plist-put (cdr ui) :x-internal-widget widget))
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55 widget)
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56 (error "Unknown ui element: %s" (car ui))))))
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57
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58 (defun show-ui (ui)
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59 (let ((widget (plist-get (cdr ui) :x-internal-widget)))
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60 (if (not widget)
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61 (error "Attempting to show unrealized UI"))
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62 (gtk-widget-show-all widget)
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63 (gtk-signal-connect widget 'destroy
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64 (lambda (widget ui)
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65 (setcdr ui (plist-put (cdr ui) :x-internal-widget nil))) ui)))
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66
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67
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68 (defun build-ui::window (spec)
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69 "Create a top-level window for containing other widgets.
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70 Properties:
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71 :items list A list of child UI specs. Only the first is used.
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72 :type toplevel/dialog/popup What type of window to create. Window managers
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73 can (and usually do) treat each type differently.
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74 "
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75 (let ((plist (cdr spec))
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76 (window nil)
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77 (child nil))
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78 (setq window (gtk-window-new (plist-get plist :type 'toplevel))
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79 child (build-ui (car (plist-get plist :items))))
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80 (gtk-container-add window child)
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81 window))
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82
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83 (defun build-ui::box (spec)
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84 "Create a box for containing other widgets.
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85 Properties:
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86 :items list A list of child UI specs.
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87 :homogeneous t/nil Whether all children are the same width/height.
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88 :spacing number Spacing between children.
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89 :orientation horizontal/vertical How the widgets are stacked.
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90
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91 Additional properties on child widgets:
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92 :expand t/nil Whether the new child is to be given extra space
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93 allocated to box. The extra space will be divided
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94 evenly between all children of box that use this
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95 option.
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96 :fill t/nil Whether space given to child by the expand option is
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97 actually allocated to child, rather than just padding
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98 it. This parameter has no effect if :expand is set to
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99 nil. A child is always allocated the full height of a
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100 horizontal box and the full width of a vertical box.
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101 This option affects the other dimension.
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102 :padding number Extra padding around this widget.
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103 "
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104 (let* ((plist (cdr spec))
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105 (orientation (plist-get plist :orientation 'horizontal))
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106 (children (plist-get plist :items))
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107 (box nil)
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108 (child-widget nil)
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109 (child-plist nil))
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110 (case orientation
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111 (vertical (setq box (gtk-vbox-new (plist-get plist :homogeneous)
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112 (plist-get plist :spacing))))
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113 (horizontal (setq box (gtk-hbox-new (plist-get plist :homogeneous)
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114 (plist-get plist :spacing))))
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115 (otherwise (error "Unknown orientation for box: %s" orientation)))
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116 (mapc
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117 (lambda (child)
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118 (setq child-plist (cdr child)
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119 child-widget (build-ui child))
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120 (if (listp child-widget)
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121 (mapc (lambda (w)
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122 (gtk-box-pack-start box w
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123 (plist-get child-plist :expand)
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124 (plist-get child-plist :fill)
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125 (plist-get child-plist :padding))) child-widget)
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126 (gtk-box-pack-start box child-widget
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127 (plist-get child-plist :expand)
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128 (plist-get child-plist :fill)
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129 (plist-get child-plist :padding))))
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130 children)
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131 box))
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132
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133 (defun build-ui::tab-control (spec)
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134 "Create a notebook widget.
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135 Properties:
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136 :items list A list of UI specs to use as notebook pages.
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137 :homogeneous t/nil Whether all tabs are the same width.
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138 :orientation top/bottom/left/right Position of tabs
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139 :show-tabs t/nil Show the tabs on screen?
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140 :scrollable t/nil Allow scrolling to view all tab widgets?
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141
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142 Additional properties on child widgets:
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143 :tab-label ui A UI spec to use for the tab label.
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144 "
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145 (let* ((plist (cdr spec))
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146 (notebook (gtk-notebook-new))
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147 (children (plist-get plist :items))
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148 (page-counter 1)
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149 (label-widget nil)
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150 (child-widget nil)
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151 (child-plist nil))
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152 ;; Set all the properties
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153 (gtk-notebook-set-homogeneous-tabs notebook (plist-get plist :homogeneous))
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154 (gtk-notebook-set-scrollable notebook (plist-get plist :scrollable t))
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155 (gtk-notebook-set-show-tabs notebook (plist-get plist :show-tabs t))
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156 (gtk-notebook-set-tab-pos notebook (plist-get plist :orientation 'top))
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157
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158 ;; Now fill in the tabs
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159 (mapc
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160 (lambda (child)
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161 (setq child-plist (cdr child)
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162 child-widget (build-ui child)
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163 label-widget (build-ui (plist-get child-plist :tab-label
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164 (list 'label :text (format "tab %d" page-counter))))
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165 page-counter (1+ page-counter))
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166 (gtk-notebook-append-page notebook child-widget label-widget))
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167 children)
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168 notebook))
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169
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170 (defun build-ui::text (spec)
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171 "Create a multi-line text widget.
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172 Properties:
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173 :editable t/nil Whether the user can change the contents
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174 :word-wrap t/nil Automatic word wrapping?
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175 :line-wrap t/nil Automatic line wrapping?
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176 :text string Initial contents of the widget
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177 :file filename File for initial contents (takes precedence over :text)
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178 :face facename XEmacs face to use in the widget.
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179 "
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180 (let* ((plist (cdr spec))
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181 (text (gtk-text-new nil nil))
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182 (face (plist-get plist :face 'default))
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183 (info (plist-get plist :text))
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184 (file (plist-get plist :file)))
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185 (gtk-text-set-editable text (plist-get plist :editable))
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186 (gtk-text-set-word-wrap text (plist-get plist :word-wrap))
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187 (gtk-text-set-line-wrap text (plist-get plist :line-wrap))
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188 (gtk-widget-set-style text 'default)
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189
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190 ;; Possible convert the file portion
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191 (if (and file (not (stringp file)))
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192 (setq file (eval file)))
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193
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194 (if (and info (not (stringp info)))
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195 (setq info (eval info)))
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196
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197 (if (and file (file-exists-p file) (file-readable-p file))
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198 (save-excursion
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199 (set-buffer (get-buffer-create " *improbable buffer name*"))
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200 (insert-file-contents file)
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201 (setq info (buffer-string))))
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202
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203 (gtk-text-insert text
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204 (face-font face)
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205 (face-foreground face)
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206 (face-background face)
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207 info (length info))
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208 text))
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209
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210 (defun build-ui::label (spec)
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211 "Create a label widget.
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212 Properties:
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213 :text string Text inside the label
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214 :face facename XEmacs face to use in the widget.
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215 :justification right/left/center How to justify the text.
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216 "
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217 (let* ((plist (cdr spec))
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218 (label (gtk-label-new (plist-get plist :text))))
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219 (gtk-label-set-line-wrap label t)
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220 (gtk-label-set-justify label (plist-get plist :justification))
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221 (gtk-widget-set-style label (plist-get plist :face 'default))
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222 label))
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223
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224 (defun build-ui::pixmap (spec)
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225 "Create a multi-line text widget.
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226 Properties:
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227 :text string Text inside the label
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228 :face facename XEmacs face to use in the widget.
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229 :justification right/left/center How to justify the text.
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230 "
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231 (let* ((plist (cdr spec))
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232 (label (gtk-label-new (plist-get plist :text))))
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233 (gtk-label-set-line-wrap label t)
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234 (gtk-label-set-justify label (plist-get plist :justification))
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235 (gtk-widget-set-style label (plist-get plist :face 'default))
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236 label))
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237
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238 (defun build-ui::radio-group (spec)
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239 "A convenience when specifying a group of radio buttons."
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502
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240 (declare (special build-ui::radio-group))
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462
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241 (let ((build-ui::radio-group nil))
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242 (mapcar 'build-ui (plist-get (cdr spec) :items))))
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243
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244 (defun build-ui::button (spec)
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245 "Create a button widget.
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246 Properties:
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247 :type radio/check/toggle/nil What type of button to create.
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248 :text string Text in the button.
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249 :glyph glyph Image in the button.
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250 :label ui A UI spec to use for the label.
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251 :relief normal/half/none How to draw button edges.
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252
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253 NOTE: Radio buttons must be in a radio-group object for them to work.
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254 "
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502
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255 (declare (special build-ui::radio-group))
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256 (let* ((plist (cdr spec))
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257 (button nil)
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258 (button-type (plist-get plist :type 'normal)))
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462
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259 (case button-type
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260 (radio
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261 (if (not (boundp 'build-ui::radio-group))
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262 (error "Attempt to use a radio button outside a radio-group"))
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263 (setq button (gtk-radio-button-new build-ui::radio-group)
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264 build-ui::radio-group (gtk-radio-button-group button)))
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265 (check
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266 (setq button (gtk-check-button-new)))
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267 (toggle
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268 (setq button (gtk-toggle-button-new)))
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269 (normal
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270 (setq button (gtk-button-new)))
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271 (otherwise
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272 (error "Unknown button type: %s" button-type)))
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273 (gtk-container-add
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274 button
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275 (build-ui (plist-get plist :label
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276 (list 'label :text
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277 (plist-get plist
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278 :text (format "%s button" button-type))))))
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279 button))
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280
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281 (defun build-ui::progress-gauge (spec)
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282 "Create a progress meter.
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283 Properties:
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284 :orientation left-to-right/right-to-left/top-to-bottom/bottom-to-top
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285 :type discrete/continuous
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286
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287 "
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288 (let ((plist (cdr spec))
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289 (gauge (gtk-progress-bar-new)))
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290 (gtk-progress-bar-set-orientation gauge (plist-get plist :orientation 'left-to-right))
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291 (gtk-progress-bar-set-bar-style gauge (plist-get plist :type 'continuous))
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292 gauge))
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293
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294 (provide 'generic-widgets)
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295
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296 (when (featurep 'gtk) ; just loading this file should be OK
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297 (gtk-widget-show-all
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298 (build-ui
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299 '(window :type dialog
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300 :items ((tab-control
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301 :homogeneous t
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302 :orientation bottom
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303 :items ((box :orientation vertical
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304 :tab-label (label :text "vertical")
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305 :items ((label :text "Vertical")
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306 (progress-gauge)
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307 (label :text "Box stacking")))
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308 (box :orientation horizontal
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309 :spacing 10
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310 :items ((label :text "Horizontal box")
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311 (label :text "stacking")))
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312
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313 (box :orientation vertical
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314 :items
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315 ((radio-group
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316 :items ((button :type radio
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317 :expand nil
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318 :fill nil
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319 :text "Item 1")
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320 (button :type radio
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321 :expand nil
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322 :fill nil
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323 :text "Item 2")
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324 (button :type radio
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325 :expand nil
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326 :fill nil
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327 :text "Item 3")
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328 (button :type radio
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329 :expand nil
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330 :fill nil)))))
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331 (box :orientation vertical
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332 :items ((button :type check
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333 :text "Item 1")
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334 (button :type check
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335 :text "Item 2")
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336 (button :type normal
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337 :text "Item 3")
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338 (button :type toggle)))
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339 (text :editable t
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340 :word-wrap t
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341 :file (locate-data-file "COPYING"))
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342 (text :editable t
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343 :face display-time-mail-balloon-enhance-face
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344 :word-wrap t
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345 :text "Text with a face on it")))))))
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346 )
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