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0
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1 /* The lwlib interface to Athena widgets.
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2 Copyright (C) 1993, 1994 Free Software Foundation, Inc.
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3
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4 This file is part of the Lucid Widget Library.
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5
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6 The Lucid Widget Library is free software; you can redistribute it and/or
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7 modify it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 1, or (at your option)
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9 any later version.
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10
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11 The Lucid Widget Library is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with GNU Emacs; see the file COPYING. If not, write to
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12
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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0
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20
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21 #include <stdio.h>
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22
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23 #include "lwlib-Xaw.h"
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24
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25 #include <X11/StringDefs.h>
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26 #include <X11/IntrinsicP.h>
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27 #include <X11/CoreP.h>
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28 #include <X11/Shell.h>
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29
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30 #ifdef SCROLLBARS_ATHENA
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31 #include <X11/Xaw/Scrollbar.h>
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32 #endif
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33 #ifdef DIALOGS_ATHENA
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34 #include <X11/Xaw/Dialog.h>
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35 #include <X11/Xaw/Form.h>
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36 #include <X11/Xaw/Command.h>
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37 #include <X11/Xaw/Label.h>
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38 #endif
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39
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40 #include <X11/Xatom.h>
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41
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42 static void xaw_generic_callback (Widget, XtPointer, XtPointer);
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43
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44
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45 Boolean
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46 lw_xaw_widget_p (Widget widget)
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47 {
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48 return (0
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49 #ifdef SCROLLBARS_ATHENA
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50 || XtIsSubclass (widget, scrollbarWidgetClass)
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51 #endif
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52 #ifdef DIALOGS_ATHENA
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53 || XtIsSubclass (widget, dialogWidgetClass)
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54 #endif
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55 );
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56 }
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57
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58 #ifdef SCROLLBARS_ATHENA
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59 static void
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60 xaw_update_scrollbar (widget_instance *instance, Widget widget,
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61 widget_value *val)
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62 {
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63 if (val->scrollbar_data)
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64 {
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65 scrollbar_values *data = val->scrollbar_data;
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66 float widget_shown, widget_topOfThumb;
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67 float new_shown, new_topOfThumb;
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68
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69 /*
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70 * First size and position the scrollbar widget.
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71 */
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72 XtVaSetValues (widget,
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73 XtNx, data->scrollbar_x,
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74 XtNy, data->scrollbar_y,
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75 XtNwidth, data->scrollbar_width,
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76 XtNheight, data->scrollbar_height,
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77 0);
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78
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79 /*
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80 * Now the size the scrollbar's slider.
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81 */
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82
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83 XtVaGetValues (widget,
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84 XtNtopOfThumb, &widget_topOfThumb,
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85 XtNshown, &widget_shown,
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86 0);
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87
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88 new_shown = (double) data->slider_size /
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89 (double) (data->maximum - data->minimum);
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90
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91 new_topOfThumb = (double) (data->slider_position - data->minimum) /
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92 (double) (data->maximum - data->minimum);
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93
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94 if (new_shown > 1.0)
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95 new_shown = 1.0;
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96 if (new_shown < 0)
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97 new_shown = 0;
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98
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99 if (new_topOfThumb > 1.0)
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100 new_topOfThumb = 1.0;
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101 if (new_topOfThumb < 0)
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102 new_topOfThumb = 0;
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103
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104 if (new_shown != widget_shown || new_topOfThumb != widget_topOfThumb)
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105 XawScrollbarSetThumb (widget, new_topOfThumb, new_shown);
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106 }
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107 }
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108 #endif /* SCROLLBARS_ATHENA */
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109
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110 void
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111 xaw_update_one_widget (widget_instance *instance, Widget widget,
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112 widget_value *val, Boolean deep_p)
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113 {
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114 if (0)
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115 ;
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116 #ifdef SCROLLBARS_ATHENA
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117 else if (XtIsSubclass (widget, scrollbarWidgetClass))
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118 {
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119 xaw_update_scrollbar (instance, widget, val);
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120 }
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121 #endif
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122 #ifdef DIALOGS_ATHENA
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123 else if (XtIsSubclass (widget, dialogWidgetClass))
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124 {
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125 XtVaSetValues (widget, XtNlabel, val->contents->value, 0);
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126 }
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127 else if (XtIsSubclass (widget, commandWidgetClass))
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128 {
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129 Dimension bw = 0;
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130 XtVaGetValues (widget, XtNborderWidth, &bw, 0);
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131 if (bw == 0)
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132 /* Don't let buttons end up with 0 borderwidth, that's ugly...
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133 Yeah, all this should really be done through app-defaults files
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134 or fallback resources, but that's a whole different can of worms
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135 that I don't feel like opening right now. Making Athena widgets
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136 not look like shit is just entirely too much work.
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137 */
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138 XtVaSetValues (widget, XtNborderWidth, 1, 0);
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139
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140 XtVaSetValues (widget,
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141 XtNlabel, val->value,
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142 XtNsensitive, val->enabled,
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143 /* Force centered button text. Se above. */
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144 XtNjustify, XtJustifyCenter,
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145 0);
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146
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147 XtRemoveAllCallbacks (widget, XtNcallback);
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148 XtAddCallback (widget, XtNcallback, xaw_generic_callback, instance);
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149 }
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150 #endif
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151 }
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152
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153 void
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154 xaw_update_one_value (widget_instance *instance, Widget widget,
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155 widget_value *val)
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156 {
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157 /* This function is not used by the scrollbars and those are the only
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158 Athena widget implemented at the moment so do nothing. */
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159 return;
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160 }
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161
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162 void
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163 xaw_destroy_instance (widget_instance *instance)
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164 {
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165 #ifdef DIALOGS_ATHENA
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166 if (XtIsSubclass (instance->widget, dialogWidgetClass))
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167 /* Need to destroy the Shell too. */
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168 XtDestroyWidget (XtParent (instance->widget));
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169 else
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170 #endif
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171 XtDestroyWidget (instance->widget);
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172 }
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173
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174 void
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175 xaw_popup_menu (Widget widget, XEvent *event)
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176 {
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177 /* An Athena menubar has not been implemented. */
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178 return;
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179 }
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180
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181 void
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182 xaw_pop_instance (widget_instance *instance, Boolean up)
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183 {
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184 Widget widget = instance->widget;
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185
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186 if (up)
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187 {
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188 #ifdef DIALOGS_ATHENA
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189 if (XtIsSubclass (widget, dialogWidgetClass))
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190 {
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191 /* For dialogs, we need to call XtPopup on the parent instead
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192 of calling XtManageChild on the widget.
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193 Also we need to hack the shell's WM_PROTOCOLS to get it to
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194 understand what the close box is supposed to do!!
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195 */
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196 Display *dpy = XtDisplay (widget);
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197 Widget shell = XtParent (widget);
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198 Atom props [2];
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199 int i = 0;
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200 props [i++] = XInternAtom (dpy, "WM_DELETE_WINDOW", False);
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201 XChangeProperty (dpy, XtWindow (shell),
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202 XInternAtom (dpy, "WM_PROTOCOLS", False),
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203 XA_ATOM, 32, PropModeAppend,
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204 (unsigned char *) props, i);
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205
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206 /* Center the widget in its parent. Why isn't this kind of crap
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207 done automatically? I thought toolkits were supposed to make
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208 life easier?
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209 */
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210 {
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211 unsigned int x, y, w, h;
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212 Widget topmost = instance->parent;
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213 w = shell->core.width;
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214 h = shell->core.height;
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215 while (topmost->core.parent && XtIsRealized (topmost->core.parent))
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216 topmost = topmost->core.parent;
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217 if (topmost->core.width < w) x = topmost->core.x;
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218 else x = topmost->core.x + ((topmost->core.width - w) / 2);
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219 if (topmost->core.height < h) y = topmost->core.y;
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220 else y = topmost->core.y + ((topmost->core.height - h) / 2);
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221 XtMoveWidget (shell, x, y);
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222 }
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223
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224 /* Finally, pop it up. */
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225 XtPopup (shell, XtGrabNonexclusive);
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226 }
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227 else
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228 #endif /* DIALOGS_ATHENA */
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229 XtManageChild (widget);
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230 }
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231 else
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232 {
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233 #ifdef DIALOGS_ATHENA
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234 if (XtIsSubclass (widget, dialogWidgetClass))
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235 XtUnmanageChild (XtParent (widget));
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236 else
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237 #endif
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238 XtUnmanageChild (widget);
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239 }
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240 }
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241
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242
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243 #ifdef DIALOGS_ATHENA
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244 /* Dialog boxes */
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245
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246 static char overrideTrans[] =
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247 "<Message>WM_PROTOCOLS: lwlib_delete_dialog()";
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248 static XtActionProc wm_delete_window (Widget shell, XtPointer closure,
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249 XtPointer call_data);
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250 static XtActionsRec xaw_actions [] = {
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251 {"lwlib_delete_dialog", (XtActionProc) wm_delete_window}
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252 };
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253 static Boolean actions_initted = False;
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254
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255 static Widget
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256 make_dialog (CONST char* name, Widget parent, Boolean pop_up_p,
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257 CONST char* shell_title, CONST char* icon_name,
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258 Boolean text_input_slot,
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259 Boolean radio_box, Boolean list,
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260 int left_buttons, int right_buttons)
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261 {
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262 Arg av [20];
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263 int ac = 0;
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264 int i, bc;
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265 char button_name [255];
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266 Widget shell;
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267 Widget dialog;
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268 Widget button;
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269 XtTranslations override;
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270
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271 if (! pop_up_p) abort (); /* not implemented */
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272 if (text_input_slot) abort (); /* not implemented */
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273 if (radio_box) abort (); /* not implemented */
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274 if (list) abort (); /* not implemented */
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275
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276 if (! actions_initted)
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277 {
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278 XtAppContext app = XtWidgetToApplicationContext (parent);
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279 XtAppAddActions (app, xaw_actions,
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280 sizeof (xaw_actions) / sizeof (xaw_actions[0]));
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281 actions_initted = True;
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282 }
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283
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284 override = XtParseTranslationTable (overrideTrans);
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285
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286 ac = 0;
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287 XtSetArg (av[ac], XtNtitle, shell_title); ac++;
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288 XtSetArg (av[ac], XtNallowShellResize, True); ac++;
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289 XtSetArg (av[ac], XtNtransientFor, parent); ac++;
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290 shell = XtCreatePopupShell ("dialog", transientShellWidgetClass,
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291 parent, av, ac);
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292 XtOverrideTranslations (shell, override);
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293
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294 ac = 0;
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295 dialog = XtCreateManagedWidget (name, dialogWidgetClass, shell, av, ac);
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296
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297 bc = 0;
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298 button = 0;
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299 for (i = 0; i < left_buttons; i++)
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300 {
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301 ac = 0;
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302 XtSetArg (av [ac], XtNfromHoriz, button); ac++;
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303 XtSetArg (av [ac], XtNleft, XtChainLeft); ac++;
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304 XtSetArg (av [ac], XtNright, XtChainLeft); ac++;
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305 XtSetArg (av [ac], XtNtop, XtChainBottom); ac++;
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306 XtSetArg (av [ac], XtNbottom, XtChainBottom); ac++;
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307 XtSetArg (av [ac], XtNresizable, True); ac++;
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308 sprintf (button_name, "button%d", ++bc);
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309 button = XtCreateManagedWidget (button_name, commandWidgetClass,
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310 dialog, av, ac);
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311 }
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312 if (right_buttons)
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313 {
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314 /* Create a separator
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315
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316 I want the separator to take up the slack between the buttons on
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317 the right and the buttons on the left (that is I want the buttons
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318 after the separator to be packed against the right edge of the
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319 window) but I can't seem to make it do it.
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320 */
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321 ac = 0;
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322 XtSetArg (av [ac], XtNfromHoriz, button); ac++;
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323 /* XtSetArg (av [ac], XtNfromVert, XtNameToWidget (dialog, "label")); ac++; */
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324 XtSetArg (av [ac], XtNleft, XtChainLeft); ac++;
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325 XtSetArg (av [ac], XtNright, XtChainRight); ac++;
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326 XtSetArg (av [ac], XtNtop, XtChainBottom); ac++;
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327 XtSetArg (av [ac], XtNbottom, XtChainBottom); ac++;
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328 XtSetArg (av [ac], XtNlabel, ""); ac++;
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329 XtSetArg (av [ac], XtNwidth, 30); ac++; /* #### aaack!! */
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330 XtSetArg (av [ac], XtNborderWidth, 0); ac++;
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331 XtSetArg (av [ac], XtNshapeStyle, XmuShapeRectangle); ac++;
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332 XtSetArg (av [ac], XtNresizable, False); ac++;
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333 XtSetArg (av [ac], XtNsensitive, False); ac++;
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334 button = XtCreateManagedWidget ("separator",
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335 /* labelWidgetClass, */
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336 /* This has to be Command to fake out
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337 the Dialog widget... */
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338 commandWidgetClass,
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339 dialog, av, ac);
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340 }
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341 for (i = 0; i < right_buttons; i++)
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342 {
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343 ac = 0;
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344 XtSetArg (av [ac], XtNfromHoriz, button); ac++;
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345 XtSetArg (av [ac], XtNleft, XtChainRight); ac++;
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346 XtSetArg (av [ac], XtNright, XtChainRight); ac++;
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347 XtSetArg (av [ac], XtNtop, XtChainBottom); ac++;
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348 XtSetArg (av [ac], XtNbottom, XtChainBottom); ac++;
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349 XtSetArg (av [ac], XtNresizable, True); ac++;
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350 sprintf (button_name, "button%d", ++bc);
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351 button = XtCreateManagedWidget (button_name, commandWidgetClass,
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352 dialog, av, ac);
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353 }
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354
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355 return dialog;
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356 }
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357
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358 Widget
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359 xaw_create_dialog (widget_instance* instance)
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360 {
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361 char *name = instance->info->type;
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362 Widget parent = instance->parent;
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363 Widget widget;
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364 Boolean pop_up_p = instance->pop_up_p;
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365 CONST char *shell_name = 0;
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366 CONST char *icon_name = 0;
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367 Boolean text_input_slot = False;
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368 Boolean radio_box = False;
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369 Boolean list = False;
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370 int total_buttons;
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371 int left_buttons = 0;
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372 int right_buttons = 1;
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373
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374 switch (name [0]) {
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375 case 'E': case 'e':
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376 icon_name = "dbox-error";
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377 shell_name = "Error";
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378 break;
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379
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380 case 'I': case 'i':
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381 icon_name = "dbox-info";
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382 shell_name = "Information";
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383 break;
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384
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385 case 'L': case 'l':
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386 list = True;
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387 icon_name = "dbox-question";
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388 shell_name = "Prompt";
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389 break;
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390
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391 case 'P': case 'p':
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392 text_input_slot = True;
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393 icon_name = "dbox-question";
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394 shell_name = "Prompt";
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395 break;
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396
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397 case 'Q': case 'q':
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398 icon_name = "dbox-question";
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399 shell_name = "Question";
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400 break;
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401 }
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402
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403 total_buttons = name [1] - '0';
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|
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404
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|
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405 if (name [3] == 'T' || name [3] == 't')
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406 {
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|
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407 text_input_slot = False;
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|
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408 radio_box = True;
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|
|
409 }
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|
|
410 else if (name [3])
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|
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411 right_buttons = name [4] - '0';
|
|
|
412
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|
|
413 left_buttons = total_buttons - right_buttons;
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|
|
414
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|
|
415 widget = make_dialog (name, parent, pop_up_p,
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416 shell_name, icon_name, text_input_slot, radio_box,
|
|
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417 list, left_buttons, right_buttons);
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|
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418
|
|
|
419 return widget;
|
|
|
420 }
|
|
|
421 #endif /* DIALOGS_ATHENA */
|
|
|
422
|
|
|
423
|
|
|
424 static void
|
|
|
425 xaw_generic_callback (Widget widget, XtPointer closure, XtPointer call_data)
|
|
|
426 {
|
|
|
427 widget_instance *instance = (widget_instance *) closure;
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|
|
428 Widget instance_widget;
|
|
|
429 LWLIB_ID id;
|
|
|
430 XtPointer user_data;
|
|
|
431
|
|
|
432 lw_internal_update_other_instances (widget, closure, call_data);
|
|
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433
|
|
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434 if (! instance)
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|
|
435 return;
|
|
|
436 if (widget->core.being_destroyed)
|
|
|
437 return;
|
|
|
438
|
|
|
439 instance_widget = instance->widget;
|
|
|
440 if (!instance_widget)
|
|
|
441 return;
|
|
|
442
|
|
|
443 id = instance->info->id;
|
|
|
444
|
|
|
445 #if 0
|
|
|
446 user_data = NULL;
|
|
|
447 XtVaGetValues (widget, XtNuserData, &user_data, 0);
|
|
|
448 #else
|
|
|
449 /* Damn! Athena doesn't give us a way to hang our own data on the
|
|
|
450 buttons, so we have to go find it... I guess this assumes that
|
|
|
451 all instances of a button have the same call data. */
|
|
|
452 {
|
|
|
453 widget_value *val = instance->info->val->contents;
|
|
|
454 char *name = XtName (widget);
|
|
|
455 while (val)
|
|
|
456 {
|
|
|
457 if (val->name && !strcmp (val->name, name))
|
|
|
458 break;
|
|
|
459 val = val->next;
|
|
|
460 }
|
|
|
461 if (! val) abort ();
|
|
|
462 user_data = val->call_data;
|
|
|
463 }
|
|
|
464 #endif
|
|
|
465
|
|
|
466 if (instance->info->selection_cb)
|
|
|
467 instance->info->selection_cb (widget, id, user_data);
|
|
|
468 }
|
|
|
469
|
|
|
470 #ifdef DIALOGS_ATHENA
|
|
|
471
|
|
|
472 static XtActionProc
|
|
|
473 wm_delete_window (Widget shell, XtPointer closure, XtPointer call_data)
|
|
|
474 {
|
|
|
475 LWLIB_ID id;
|
|
|
476 Widget *kids = 0;
|
|
|
477 Widget widget;
|
|
|
478 if (! XtIsSubclass (shell, shellWidgetClass))
|
|
|
479 abort ();
|
|
|
480 XtVaGetValues (shell, XtNchildren, &kids, 0);
|
|
|
481 if (!kids || !*kids)
|
|
|
482 abort ();
|
|
|
483 widget = kids [0];
|
|
|
484 if (! XtIsSubclass (widget, dialogWidgetClass))
|
|
|
485 abort ();
|
|
|
486 id = lw_get_widget_id (widget);
|
|
|
487 if (! id) abort ();
|
|
|
488
|
|
|
489 {
|
|
|
490 widget_info *info = lw_get_widget_info (id);
|
|
|
491 if (! info) abort ();
|
|
|
492 if (info->selection_cb)
|
|
|
493 info->selection_cb (widget, id, (XtPointer) -1);
|
|
|
494 }
|
|
|
495
|
|
|
496 lw_destroy_all_widgets (id);
|
|
|
497 return NULL;
|
|
|
498 }
|
|
|
499
|
|
|
500 #endif /* DIALOGS_ATHENA */
|
|
|
501
|
|
|
502
|
|
|
503 /* Scrollbars */
|
|
|
504
|
|
|
505 #ifdef SCROLLBARS_ATHENA
|
|
|
506 static void
|
|
|
507 xaw_scrollbar_scroll (Widget widget, XtPointer closure, XtPointer call_data)
|
|
|
508 {
|
|
|
509 widget_instance *instance = (widget_instance *) closure;
|
|
|
510 LWLIB_ID id;
|
|
|
511 scroll_event event_data;
|
|
|
512
|
|
|
513 if (!instance || widget->core.being_destroyed)
|
|
|
514 return;
|
|
|
515
|
|
|
516 id = instance->info->id;
|
|
|
517 event_data.slider_value = (int) call_data;
|
|
|
518 event_data.time = 0;
|
|
|
519
|
|
|
520 if ((int) call_data > 0)
|
|
|
521 event_data.action = SCROLLBAR_PAGE_DOWN;
|
|
|
522 else
|
|
|
523 event_data.action = SCROLLBAR_PAGE_UP;
|
|
|
524
|
|
|
525 if (instance->info->pre_activate_cb)
|
|
|
526 instance->info->pre_activate_cb (widget, id, (XtPointer) &event_data);
|
|
|
527 }
|
|
|
528
|
|
|
529 static void
|
|
|
530 xaw_scrollbar_jump (Widget widget, XtPointer closure, XtPointer call_data)
|
|
|
531 {
|
|
|
532 widget_instance *instance = (widget_instance *) closure;
|
|
|
533 LWLIB_ID id;
|
|
|
534 scroll_event event_data;
|
|
|
535 scrollbar_values *val =
|
|
|
536 (scrollbar_values *) instance->info->val->scrollbar_data;
|
|
|
537 float percent;
|
|
|
538
|
|
|
539 if (!instance || widget->core.being_destroyed)
|
|
|
540 return;
|
|
|
541
|
|
|
542 id = instance->info->id;
|
|
|
543
|
|
|
544 percent = * (float *) call_data;
|
|
|
545 event_data.slider_value =
|
|
|
546 (int) (percent * (float) (val->maximum - val->minimum)) + val->minimum;
|
|
|
547
|
|
|
548 event_data.time = 0;
|
|
|
549 event_data.action = SCROLLBAR_DRAG;
|
|
|
550
|
|
|
551 if (instance->info->pre_activate_cb)
|
|
|
552 instance->info->pre_activate_cb (widget, id, (XtPointer) &event_data);
|
|
|
553 }
|
|
|
554
|
|
|
555 static Widget
|
|
|
556 xaw_create_scrollbar (widget_instance *instance, int vertical)
|
|
|
557 {
|
|
12
|
558 Arg av[10];
|
|
0
|
559 int ac = 0;
|
|
12
|
560
|
|
|
561 static XtCallbackRec jumpCallbacks[2] =
|
|
|
562 { {xaw_scrollbar_jump, NULL}, {NULL, NULL} };
|
|
|
563
|
|
|
564 static XtCallbackRec scrollCallbacks[2] =
|
|
|
565 { {xaw_scrollbar_scroll, NULL}, {NULL, NULL} };
|
|
|
566
|
|
|
567 jumpCallbacks[0].closure = scrollCallbacks[0].closure = (XtPointer) instance;
|
|
0
|
568
|
|
|
569 /* #### This is tacked onto the with and height and completely
|
|
|
570 screws our geometry management. We should probably make the
|
|
|
571 top-level aware of this so that people could have a border but so
|
|
|
572 few people use the Athena scrollbar now that it really isn't
|
|
|
573 worth the effort, at least not at the moment. */
|
|
|
574 XtSetArg (av [ac], XtNborderWidth, 0); ac++;
|
|
12
|
575 XtSetArg (av [ac], XtNorientation,
|
|
|
576 vertical ? XtorientVertical : XtorientHorizontal); ac++;
|
|
|
577 XtSetArg (av [ac], "jumpProc", jumpCallbacks); ac++;
|
|
|
578 XtSetArg (av [ac], "scrollProc", scrollCallbacks); ac++;
|
|
0
|
579
|
|
12
|
580 return XtCreateWidget (instance->info->name, scrollbarWidgetClass,
|
|
|
581 instance->parent, av, ac);
|
|
0
|
582 }
|
|
|
583
|
|
|
584 static Widget
|
|
|
585 xaw_create_vertical_scrollbar (widget_instance *instance)
|
|
|
586 {
|
|
|
587 return xaw_create_scrollbar (instance, 1);
|
|
|
588 }
|
|
|
589
|
|
|
590 static Widget
|
|
|
591 xaw_create_horizontal_scrollbar (widget_instance *instance)
|
|
|
592 {
|
|
|
593 return xaw_create_scrollbar (instance, 0);
|
|
|
594 }
|
|
|
595 #endif /* SCROLLBARS_ATHENA */
|
|
|
596
|
|
|
597 widget_creation_entry
|
|
|
598 xaw_creation_table [] =
|
|
|
599 {
|
|
|
600 #ifdef SCROLLBARS_ATHENA
|
|
|
601 {"vertical-scrollbar", xaw_create_vertical_scrollbar},
|
|
|
602 {"horizontal-scrollbar", xaw_create_horizontal_scrollbar},
|
|
|
603 #endif
|
|
|
604 {NULL, NULL}
|
|
|
605 };
|
