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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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18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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19
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20 #include <stdio.h>
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21
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22 #include "lwlib-Xaw.h"
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23
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24 #include <X11/StringDefs.h>
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25 #include <X11/IntrinsicP.h>
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26 #include <X11/CoreP.h>
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27 #include <X11/Shell.h>
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28
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29 #ifdef SCROLLBARS_ATHENA
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30 #include <X11/Xaw/Scrollbar.h>
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31 #endif
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32 #ifdef DIALOGS_ATHENA
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33 #include <X11/Xaw/Dialog.h>
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34 #include <X11/Xaw/Form.h>
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35 #include <X11/Xaw/Command.h>
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36 #include <X11/Xaw/Label.h>
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37 #endif
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38
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39 #include <X11/Xatom.h>
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40
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41 static void xaw_generic_callback (Widget, XtPointer, XtPointer);
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42
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43
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44 Boolean
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45 lw_xaw_widget_p (Widget widget)
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46 {
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47 return (0
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48 #ifdef SCROLLBARS_ATHENA
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49 || XtIsSubclass (widget, scrollbarWidgetClass)
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50 #endif
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51 #ifdef DIALOGS_ATHENA
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52 || XtIsSubclass (widget, dialogWidgetClass)
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53 #endif
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54 );
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55 }
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56
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57 #ifdef SCROLLBARS_ATHENA
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58 static void
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59 xaw_update_scrollbar (widget_instance *instance, Widget widget,
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60 widget_value *val)
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61 {
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62 if (val->scrollbar_data)
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63 {
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64 scrollbar_values *data = val->scrollbar_data;
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65 float widget_shown, widget_topOfThumb;
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66 float new_shown, new_topOfThumb;
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67
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68 /*
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69 * First size and position the scrollbar widget.
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70 */
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71 XtVaSetValues (widget,
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72 XtNx, data->scrollbar_x,
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73 XtNy, data->scrollbar_y,
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74 XtNwidth, data->scrollbar_width,
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75 XtNheight, data->scrollbar_height,
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76 0);
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77
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78 /*
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79 * Now the size the scrollbar's slider.
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80 */
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81
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82 XtVaGetValues (widget,
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83 XtNtopOfThumb, &widget_topOfThumb,
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84 XtNshown, &widget_shown,
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85 0);
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86
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87 new_shown = (double) data->slider_size /
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88 (double) (data->maximum - data->minimum);
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89
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90 new_topOfThumb = (double) (data->slider_position - data->minimum) /
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91 (double) (data->maximum - data->minimum);
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92
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93 if (new_shown > 1.0)
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94 new_shown = 1.0;
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95 if (new_shown < 0)
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96 new_shown = 0;
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97
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98 if (new_topOfThumb > 1.0)
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99 new_topOfThumb = 1.0;
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100 if (new_topOfThumb < 0)
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101 new_topOfThumb = 0;
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102
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103 if (new_shown != widget_shown || new_topOfThumb != widget_topOfThumb)
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104 XawScrollbarSetThumb (widget, new_topOfThumb, new_shown);
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105 }
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106 }
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107 #endif /* SCROLLBARS_ATHENA */
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108
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109 void
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110 xaw_update_one_widget (widget_instance *instance, Widget widget,
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111 widget_value *val, Boolean deep_p)
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112 {
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113 if (0)
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114 ;
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115 #ifdef SCROLLBARS_ATHENA
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116 else if (XtIsSubclass (widget, scrollbarWidgetClass))
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117 {
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118 xaw_update_scrollbar (instance, widget, val);
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119 }
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120 #endif
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121 #ifdef DIALOGS_ATHENA
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122 else if (XtIsSubclass (widget, dialogWidgetClass))
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123 {
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124 XtVaSetValues (widget, XtNlabel, val->contents->value, 0);
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125 }
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126 else if (XtIsSubclass (widget, commandWidgetClass))
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127 {
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128 Dimension bw = 0;
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129 XtVaGetValues (widget, XtNborderWidth, &bw, 0);
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130 if (bw == 0)
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131 /* Don't let buttons end up with 0 borderwidth, that's ugly...
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132 Yeah, all this should really be done through app-defaults files
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133 or fallback resources, but that's a whole different can of worms
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134 that I don't feel like opening right now. Making Athena widgets
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135 not look like shit is just entirely too much work.
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136 */
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137 XtVaSetValues (widget, XtNborderWidth, 1, 0);
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138
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139 XtVaSetValues (widget,
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140 XtNlabel, val->value,
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141 XtNsensitive, val->enabled,
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142 /* Force centered button text. Se above. */
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143 XtNjustify, XtJustifyCenter,
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144 0);
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145
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146 XtRemoveAllCallbacks (widget, XtNcallback);
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147 XtAddCallback (widget, XtNcallback, xaw_generic_callback, instance);
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148 }
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149 #endif
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150 }
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151
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152 void
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153 xaw_update_one_value (widget_instance *instance, Widget widget,
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154 widget_value *val)
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155 {
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156 /* This function is not used by the scrollbars and those are the only
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157 Athena widget implemented at the moment so do nothing. */
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158 return;
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159 }
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160
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161 void
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162 xaw_destroy_instance (widget_instance *instance)
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163 {
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164 #ifdef DIALOGS_ATHENA
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165 if (XtIsSubclass (instance->widget, dialogWidgetClass))
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166 /* Need to destroy the Shell too. */
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167 XtDestroyWidget (XtParent (instance->widget));
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168 else
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169 #endif
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170 XtDestroyWidget (instance->widget);
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171 }
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172
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173 void
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174 xaw_popup_menu (Widget widget, XEvent *event)
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175 {
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176 /* An Athena menubar has not been implemented. */
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177 return;
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178 }
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179
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180 void
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181 xaw_pop_instance (widget_instance *instance, Boolean up)
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182 {
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183 Widget widget = instance->widget;
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184
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185 if (up)
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186 {
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187 #ifdef DIALOGS_ATHENA
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188 if (XtIsSubclass (widget, dialogWidgetClass))
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189 {
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190 /* For dialogs, we need to call XtPopup on the parent instead
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191 of calling XtManageChild on the widget.
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192 Also we need to hack the shell's WM_PROTOCOLS to get it to
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193 understand what the close box is supposed to do!!
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194 */
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195 Display *dpy = XtDisplay (widget);
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196 Widget shell = XtParent (widget);
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197 Atom props [2];
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198 int i = 0;
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199 props [i++] = XInternAtom (dpy, "WM_DELETE_WINDOW", False);
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200 XChangeProperty (dpy, XtWindow (shell),
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201 XInternAtom (dpy, "WM_PROTOCOLS", False),
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202 XA_ATOM, 32, PropModeAppend,
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203 (unsigned char *) props, i);
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204
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205 /* Center the widget in its parent. Why isn't this kind of crap
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206 done automatically? I thought toolkits were supposed to make
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207 life easier?
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208 */
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209 {
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210 unsigned int x, y, w, h;
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211 Widget topmost = instance->parent;
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212 w = shell->core.width;
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213 h = shell->core.height;
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214 while (topmost->core.parent && XtIsRealized (topmost->core.parent))
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215 topmost = topmost->core.parent;
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216 if (topmost->core.width < w) x = topmost->core.x;
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217 else x = topmost->core.x + ((topmost->core.width - w) / 2);
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218 if (topmost->core.height < h) y = topmost->core.y;
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219 else y = topmost->core.y + ((topmost->core.height - h) / 2);
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220 XtMoveWidget (shell, x, y);
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221 }
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222
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223 /* Finally, pop it up. */
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224 XtPopup (shell, XtGrabNonexclusive);
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225 }
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226 else
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227 #endif /* DIALOGS_ATHENA */
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228 XtManageChild (widget);
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229 }
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230 else
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231 {
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232 #ifdef DIALOGS_ATHENA
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233 if (XtIsSubclass (widget, dialogWidgetClass))
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234 XtUnmanageChild (XtParent (widget));
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235 else
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236 #endif
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237 XtUnmanageChild (widget);
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238 }
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239 }
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240
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241
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242 #ifdef DIALOGS_ATHENA
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243 /* Dialog boxes */
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244
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245 static char overrideTrans[] =
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246 "<Message>WM_PROTOCOLS: lwlib_delete_dialog()";
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247 static XtActionProc wm_delete_window (Widget shell, XtPointer closure,
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248 XtPointer call_data);
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249 static XtActionsRec xaw_actions [] = {
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250 {"lwlib_delete_dialog", (XtActionProc) wm_delete_window}
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251 };
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252 static Boolean actions_initted = False;
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253
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254 static Widget
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255 make_dialog (CONST char* name, Widget parent, Boolean pop_up_p,
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256 CONST char* shell_title, CONST char* icon_name,
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257 Boolean text_input_slot,
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258 Boolean radio_box, Boolean list,
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259 int left_buttons, int right_buttons)
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260 {
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261 Arg av [20];
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262 int ac = 0;
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263 int i, bc;
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264 char button_name [255];
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265 Widget shell;
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266 Widget dialog;
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267 Widget button;
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268 XtTranslations override;
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269
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270 if (! pop_up_p) abort (); /* not implemented */
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271 if (text_input_slot) abort (); /* not implemented */
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272 if (radio_box) abort (); /* not implemented */
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273 if (list) abort (); /* not implemented */
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274
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275 if (! actions_initted)
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276 {
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277 XtAppContext app = XtWidgetToApplicationContext (parent);
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278 XtAppAddActions (app, xaw_actions,
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279 sizeof (xaw_actions) / sizeof (xaw_actions[0]));
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280 actions_initted = True;
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281 }
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282
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283 override = XtParseTranslationTable (overrideTrans);
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284
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285 ac = 0;
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286 XtSetArg (av[ac], XtNtitle, shell_title); ac++;
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287 XtSetArg (av[ac], XtNallowShellResize, True); ac++;
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288 XtSetArg (av[ac], XtNtransientFor, parent); ac++;
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289 shell = XtCreatePopupShell ("dialog", transientShellWidgetClass,
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290 parent, av, ac);
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291 XtOverrideTranslations (shell, override);
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292
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293 ac = 0;
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294 dialog = XtCreateManagedWidget (name, dialogWidgetClass, shell, av, ac);
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295
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296 bc = 0;
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297 button = 0;
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298 for (i = 0; i < left_buttons; i++)
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299 {
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300 ac = 0;
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301 XtSetArg (av [ac], XtNfromHoriz, button); ac++;
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302 XtSetArg (av [ac], XtNleft, XtChainLeft); ac++;
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303 XtSetArg (av [ac], XtNright, XtChainLeft); ac++;
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304 XtSetArg (av [ac], XtNtop, XtChainBottom); ac++;
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305 XtSetArg (av [ac], XtNbottom, XtChainBottom); ac++;
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306 XtSetArg (av [ac], XtNresizable, True); ac++;
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307 sprintf (button_name, "button%d", ++bc);
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308 button = XtCreateManagedWidget (button_name, commandWidgetClass,
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309 dialog, av, ac);
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310 }
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311 if (right_buttons)
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312 {
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313 /* Create a separator
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314
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315 I want the separator to take up the slack between the buttons on
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316 the right and the buttons on the left (that is I want the buttons
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317 after the separator to be packed against the right edge of the
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318 window) but I can't seem to make it do it.
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319 */
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320 ac = 0;
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321 XtSetArg (av [ac], XtNfromHoriz, button); ac++;
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322 /* XtSetArg (av [ac], XtNfromVert, XtNameToWidget (dialog, "label")); ac++; */
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323 XtSetArg (av [ac], XtNleft, XtChainLeft); ac++;
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324 XtSetArg (av [ac], XtNright, XtChainRight); ac++;
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325 XtSetArg (av [ac], XtNtop, XtChainBottom); ac++;
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326 XtSetArg (av [ac], XtNbottom, XtChainBottom); ac++;
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327 XtSetArg (av [ac], XtNlabel, ""); ac++;
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328 XtSetArg (av [ac], XtNwidth, 30); ac++; /* #### aaack!! */
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329 XtSetArg (av [ac], XtNborderWidth, 0); ac++;
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330 XtSetArg (av [ac], XtNshapeStyle, XmuShapeRectangle); ac++;
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331 XtSetArg (av [ac], XtNresizable, False); ac++;
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332 XtSetArg (av [ac], XtNsensitive, False); ac++;
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333 button = XtCreateManagedWidget ("separator",
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334 /* labelWidgetClass, */
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335 /* This has to be Command to fake out
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336 the Dialog widget... */
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337 commandWidgetClass,
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338 dialog, av, ac);
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339 }
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340 for (i = 0; i < right_buttons; i++)
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341 {
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342 ac = 0;
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343 XtSetArg (av [ac], XtNfromHoriz, button); ac++;
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344 XtSetArg (av [ac], XtNleft, XtChainRight); ac++;
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345 XtSetArg (av [ac], XtNright, XtChainRight); ac++;
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346 XtSetArg (av [ac], XtNtop, XtChainBottom); ac++;
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347 XtSetArg (av [ac], XtNbottom, XtChainBottom); ac++;
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348 XtSetArg (av [ac], XtNresizable, True); ac++;
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349 sprintf (button_name, "button%d", ++bc);
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350 button = XtCreateManagedWidget (button_name, commandWidgetClass,
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351 dialog, av, ac);
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352 }
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353
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354 return dialog;
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355 }
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356
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357 Widget
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358 xaw_create_dialog (widget_instance* instance)
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359 {
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360 char *name = instance->info->type;
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361 Widget parent = instance->parent;
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362 Widget widget;
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363 Boolean pop_up_p = instance->pop_up_p;
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364 CONST char *shell_name = 0;
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365 CONST char *icon_name = 0;
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366 Boolean text_input_slot = False;
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367 Boolean radio_box = False;
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368 Boolean list = False;
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369 int total_buttons;
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370 int left_buttons = 0;
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371 int right_buttons = 1;
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372
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373 switch (name [0]) {
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374 case 'E': case 'e':
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375 icon_name = "dbox-error";
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376 shell_name = "Error";
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377 break;
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378
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379 case 'I': case 'i':
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380 icon_name = "dbox-info";
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381 shell_name = "Information";
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382 break;
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383
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384 case 'L': case 'l':
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385 list = True;
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386 icon_name = "dbox-question";
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387 shell_name = "Prompt";
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388 break;
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389
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390 case 'P': case 'p':
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391 text_input_slot = True;
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392 icon_name = "dbox-question";
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393 shell_name = "Prompt";
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394 break;
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395
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396 case 'Q': case 'q':
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397 icon_name = "dbox-question";
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398 shell_name = "Question";
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399 break;
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400 }
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401
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402 total_buttons = name [1] - '0';
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403
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|
|
404 if (name [3] == 'T' || name [3] == 't')
|
|
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405 {
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|
|
406 text_input_slot = False;
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|
|
407 radio_box = True;
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|
|
408 }
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|
|
409 else if (name [3])
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|
|
410 right_buttons = name [4] - '0';
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|
|
411
|
|
|
412 left_buttons = total_buttons - right_buttons;
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|
|
413
|
|
|
414 widget = make_dialog (name, parent, pop_up_p,
|
|
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415 shell_name, icon_name, text_input_slot, radio_box,
|
|
|
416 list, left_buttons, right_buttons);
|
|
|
417
|
|
|
418 return widget;
|
|
|
419 }
|
|
|
420 #endif /* DIALOGS_ATHENA */
|
|
|
421
|
|
|
422
|
|
|
423 static void
|
|
|
424 xaw_generic_callback (Widget widget, XtPointer closure, XtPointer call_data)
|
|
|
425 {
|
|
|
426 widget_instance *instance = (widget_instance *) closure;
|
|
|
427 Widget instance_widget;
|
|
|
428 LWLIB_ID id;
|
|
|
429 XtPointer user_data;
|
|
|
430
|
|
|
431 lw_internal_update_other_instances (widget, closure, call_data);
|
|
|
432
|
|
|
433 if (! instance)
|
|
|
434 return;
|
|
|
435 if (widget->core.being_destroyed)
|
|
|
436 return;
|
|
|
437
|
|
|
438 instance_widget = instance->widget;
|
|
|
439 if (!instance_widget)
|
|
|
440 return;
|
|
|
441
|
|
|
442 id = instance->info->id;
|
|
|
443
|
|
|
444 #if 0
|
|
|
445 user_data = NULL;
|
|
|
446 XtVaGetValues (widget, XtNuserData, &user_data, 0);
|
|
|
447 #else
|
|
|
448 /* Damn! Athena doesn't give us a way to hang our own data on the
|
|
|
449 buttons, so we have to go find it... I guess this assumes that
|
|
|
450 all instances of a button have the same call data. */
|
|
|
451 {
|
|
|
452 widget_value *val = instance->info->val->contents;
|
|
|
453 char *name = XtName (widget);
|
|
|
454 while (val)
|
|
|
455 {
|
|
|
456 if (val->name && !strcmp (val->name, name))
|
|
|
457 break;
|
|
|
458 val = val->next;
|
|
|
459 }
|
|
|
460 if (! val) abort ();
|
|
|
461 user_data = val->call_data;
|
|
|
462 }
|
|
|
463 #endif
|
|
|
464
|
|
|
465 if (instance->info->selection_cb)
|
|
|
466 instance->info->selection_cb (widget, id, user_data);
|
|
|
467 }
|
|
|
468
|
|
|
469 #ifdef DIALOGS_ATHENA
|
|
|
470
|
|
|
471 static XtActionProc
|
|
|
472 wm_delete_window (Widget shell, XtPointer closure, XtPointer call_data)
|
|
|
473 {
|
|
|
474 LWLIB_ID id;
|
|
|
475 Widget *kids = 0;
|
|
|
476 Widget widget;
|
|
|
477 if (! XtIsSubclass (shell, shellWidgetClass))
|
|
|
478 abort ();
|
|
|
479 XtVaGetValues (shell, XtNchildren, &kids, 0);
|
|
|
480 if (!kids || !*kids)
|
|
|
481 abort ();
|
|
|
482 widget = kids [0];
|
|
|
483 if (! XtIsSubclass (widget, dialogWidgetClass))
|
|
|
484 abort ();
|
|
|
485 id = lw_get_widget_id (widget);
|
|
|
486 if (! id) abort ();
|
|
|
487
|
|
|
488 {
|
|
|
489 widget_info *info = lw_get_widget_info (id);
|
|
|
490 if (! info) abort ();
|
|
|
491 if (info->selection_cb)
|
|
|
492 info->selection_cb (widget, id, (XtPointer) -1);
|
|
|
493 }
|
|
|
494
|
|
|
495 lw_destroy_all_widgets (id);
|
|
|
496 return NULL;
|
|
|
497 }
|
|
|
498
|
|
|
499 #endif /* DIALOGS_ATHENA */
|
|
|
500
|
|
|
501
|
|
|
502 /* Scrollbars */
|
|
|
503
|
|
|
504 #ifdef SCROLLBARS_ATHENA
|
|
|
505 static void
|
|
|
506 xaw_scrollbar_scroll (Widget widget, XtPointer closure, XtPointer call_data)
|
|
|
507 {
|
|
|
508 widget_instance *instance = (widget_instance *) closure;
|
|
|
509 LWLIB_ID id;
|
|
|
510 scroll_event event_data;
|
|
|
511
|
|
|
512 if (!instance || widget->core.being_destroyed)
|
|
|
513 return;
|
|
|
514
|
|
|
515 id = instance->info->id;
|
|
|
516 event_data.slider_value = (int) call_data;
|
|
|
517 event_data.time = 0;
|
|
|
518
|
|
|
519 if ((int) call_data > 0)
|
|
|
520 event_data.action = SCROLLBAR_PAGE_DOWN;
|
|
|
521 else
|
|
|
522 event_data.action = SCROLLBAR_PAGE_UP;
|
|
|
523
|
|
|
524 if (instance->info->pre_activate_cb)
|
|
|
525 instance->info->pre_activate_cb (widget, id, (XtPointer) &event_data);
|
|
|
526 }
|
|
|
527
|
|
|
528 static void
|
|
|
529 xaw_scrollbar_jump (Widget widget, XtPointer closure, XtPointer call_data)
|
|
|
530 {
|
|
|
531 widget_instance *instance = (widget_instance *) closure;
|
|
|
532 LWLIB_ID id;
|
|
|
533 scroll_event event_data;
|
|
|
534 scrollbar_values *val =
|
|
|
535 (scrollbar_values *) instance->info->val->scrollbar_data;
|
|
|
536 float percent;
|
|
|
537
|
|
|
538 if (!instance || widget->core.being_destroyed)
|
|
|
539 return;
|
|
|
540
|
|
|
541 id = instance->info->id;
|
|
|
542
|
|
|
543 percent = * (float *) call_data;
|
|
|
544 event_data.slider_value =
|
|
|
545 (int) (percent * (float) (val->maximum - val->minimum)) + val->minimum;
|
|
|
546
|
|
|
547 event_data.time = 0;
|
|
|
548 event_data.action = SCROLLBAR_DRAG;
|
|
|
549
|
|
|
550 if (instance->info->pre_activate_cb)
|
|
|
551 instance->info->pre_activate_cb (widget, id, (XtPointer) &event_data);
|
|
|
552 }
|
|
|
553
|
|
|
554 static Widget
|
|
|
555 xaw_create_scrollbar (widget_instance *instance, int vertical)
|
|
|
556 {
|
|
|
557 Arg av[20];
|
|
|
558 int ac = 0;
|
|
|
559 Widget scrollbar;
|
|
|
560
|
|
|
561 /* #### This is tacked onto the with and height and completely
|
|
|
562 screws our geometry management. We should probably make the
|
|
|
563 top-level aware of this so that people could have a border but so
|
|
|
564 few people use the Athena scrollbar now that it really isn't
|
|
|
565 worth the effort, at least not at the moment. */
|
|
|
566 XtSetArg (av [ac], XtNborderWidth, 0); ac++;
|
|
|
567 if (vertical)
|
|
|
568 {
|
|
|
569 XtSetArg (av [ac], XtNorientation, XtorientVertical); ac++;
|
|
|
570 }
|
|
|
571 else
|
|
|
572 {
|
|
|
573 XtSetArg (av [ac], XtNorientation, XtorientHorizontal); ac++;
|
|
|
574 }
|
|
|
575
|
|
|
576 scrollbar =
|
|
|
577 XtCreateWidget (instance->info->name, scrollbarWidgetClass,
|
|
|
578 instance->parent, av, ac);
|
|
|
579
|
|
|
580 XtRemoveAllCallbacks (scrollbar, "jumpProc");
|
|
|
581 XtRemoveAllCallbacks (scrollbar, "scrollProc");
|
|
|
582
|
|
|
583 XtAddCallback (scrollbar, "jumpProc", xaw_scrollbar_jump,
|
|
|
584 (XtPointer) instance);
|
|
|
585 XtAddCallback (scrollbar, "scrollProc", xaw_scrollbar_scroll,
|
|
|
586 (XtPointer) instance);
|
|
|
587
|
|
|
588 return scrollbar;
|
|
|
589 }
|
|
|
590
|
|
|
591 static Widget
|
|
|
592 xaw_create_vertical_scrollbar (widget_instance *instance)
|
|
|
593 {
|
|
|
594 return xaw_create_scrollbar (instance, 1);
|
|
|
595 }
|
|
|
596
|
|
|
597 static Widget
|
|
|
598 xaw_create_horizontal_scrollbar (widget_instance *instance)
|
|
|
599 {
|
|
|
600 return xaw_create_scrollbar (instance, 0);
|
|
|
601 }
|
|
|
602 #endif /* SCROLLBARS_ATHENA */
|
|
|
603
|
|
|
604 widget_creation_entry
|
|
|
605 xaw_creation_table [] =
|
|
|
606 {
|
|
|
607 #ifdef SCROLLBARS_ATHENA
|
|
|
608 {"vertical-scrollbar", xaw_create_vertical_scrollbar},
|
|
|
609 {"horizontal-scrollbar", xaw_create_horizontal_scrollbar},
|
|
|
610 #endif
|
|
|
611 {NULL, NULL}
|
|
|
612 };
|
