1 | // =============================================================== // |
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2 | // // |
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3 | // File : AW_root.cxx // |
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4 | // Purpose : // |
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5 | // // |
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6 | // Institute of Microbiology (Technical University Munich) // |
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7 | // http://www.arb-home.de/ // |
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8 | // // |
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9 | // =============================================================== // |
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10 | |
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11 | #include "aw_root.hxx" |
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12 | #include "aw_awar.hxx" |
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13 | #include "aw_nawar.hxx" |
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14 | #include "aw_msg.hxx" |
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15 | #include "aw_window.hxx" |
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16 | #include "aw_window_Xm.hxx" |
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17 | #include "aw_status.hxx" |
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18 | #include "aw_xkey.hxx" |
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19 | |
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20 | #include <arb_handlers.h> |
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21 | #include <arbdbt.h> |
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22 | |
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23 | #include <list> |
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24 | |
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25 | #include <X11/cursorfont.h> |
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26 | |
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27 | AW_root *AW_root::SINGLETON = NULp; |
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28 | |
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29 | void AW_clock_cursor(AW_root *awr) { |
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30 | awr->prvt->set_cursor(NULp, 0, awr->prvt->clock_cursor); |
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31 | } |
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32 | |
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33 | void AW_normal_cursor(AW_root *awr) { |
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34 | awr->prvt->set_cursor(NULp, 0, 0); |
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35 | } |
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36 | |
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37 | void AW_help_entry_pressed(AW_window *aww) { |
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38 | AW_root *root = aww->get_root(); |
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39 | p_global->help_active = 1; |
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40 | } |
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41 | |
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42 | void AW_root::process_events() { |
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43 | XtAppProcessEvent(p_r->context, XtIMAll); |
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44 | } |
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45 | void AW_root::process_pending_events() { |
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46 | XtInputMask pending = XtAppPending(p_r->context); |
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47 | while (pending) { |
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48 | XtAppProcessEvent(p_r->context, pending); |
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49 | pending = XtAppPending(p_r->context); |
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50 | } |
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51 | } |
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52 | |
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53 | |
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54 | AW_ProcessEventType AW_root::peek_key_event(AW_window *) { |
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55 | //! Returns type if key event follows, else 0 |
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56 | |
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57 | XEvent xevent; |
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58 | Boolean result = XtAppPeekEvent(p_r->context, &xevent); |
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59 | |
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60 | if (!result) return NO_EVENT; |
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61 | if ((xevent.type != KeyPress) && (xevent.type != KeyRelease)) return NO_EVENT; |
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62 | return (AW_ProcessEventType)xevent.type; |
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63 | } |
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64 | |
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65 | static gb_getenv_hook orig_hook = NULp; |
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66 | static const char *ignore_arb_prop(const char *varname) { |
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67 | // getenv hook used to ignore (broken) property file in ARB_PROP |
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68 | if (strcmp(varname, "ARB_PROP") == 0) { |
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69 | static const char *ad = ARB_strdup(GB_path_in_ARBLIB("arb_default")); |
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70 | return ad; |
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71 | } |
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72 | |
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73 | GB_install_getenv_hook(orig_hook); |
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74 | const char *result = GB_getenv(varname); |
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75 | GB_install_getenv_hook(ignore_arb_prop); |
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76 | |
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77 | return result; |
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78 | } |
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79 | |
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80 | AW_default AW_root::load_properties(const char *default_name) { |
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81 | GBDATA *gb_default = GB_open(default_name, "rwcD"); |
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82 | GB_ERROR error; |
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83 | |
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84 | if (gb_default) { |
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85 | error = GB_no_transaction(gb_default); |
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86 | if (!error) { |
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87 | GBDATA *gb_tmp = GB_search(gb_default, "tmp", GB_CREATE_CONTAINER); |
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88 | error = GB_set_temporary(gb_tmp); |
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89 | } |
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90 | |
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91 | if (error) GB_close(gb_default); |
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92 | } |
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93 | else { |
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94 | error = GB_await_error(); |
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95 | } |
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96 | |
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97 | if (error) { |
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98 | { |
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99 | const char *shown_name = strrchr(default_name, '/'); |
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100 | if (!shown_name) shown_name = default_name; |
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101 | error = GBS_global_string("Error loading properties '%s': %s", shown_name, error); |
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102 | } |
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103 | |
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104 | // In case of error, try to fallback |
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105 | // 1. to default-properties |
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106 | // 2. to an empty property DB (which will at least show messages in case of status.arb) |
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107 | // |
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108 | // Forward all encountered errors via delayed, async call to arb_message |
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109 | // (needed to work for status.arb as well). |
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110 | // |
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111 | // Motivation: If status.arb gets corrupted for whatever reason, |
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112 | // arb will very silently not show any error messages. *sic* |
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113 | |
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114 | static int fallback_attempt = 0; |
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115 | ++fallback_attempt; // avoid endless recursion |
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116 | |
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117 | fputs(error, stderr); |
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118 | fputc('\n', stderr); |
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119 | |
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120 | char *qerror = GBK_singlequote(error); |
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121 | const char *cmd = GBS_global_string("(sleep 2 ; arb_message %s) &", qerror); |
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122 | free(qerror); |
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123 | |
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124 | const char *sys_error = GBK_system(cmd); |
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125 | if (sys_error) fprintf(stderr, "Fatal error: %s\n", sys_error); |
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126 | |
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127 | switch (fallback_attempt) { |
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128 | case 1: |
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129 | orig_hook = GB_install_getenv_hook(ignore_arb_prop); |
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130 | gb_default = load_properties(default_name); // retry |
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131 | GB_install_getenv_hook(orig_hook); |
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132 | break; |
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133 | |
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134 | case 2: |
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135 | gb_default = load_properties(".FUBAR.arb"); // try "empty" properties |
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136 | break; |
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137 | |
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138 | default: |
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139 | GBK_terminate(error); |
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140 | break; |
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141 | } |
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142 | |
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143 | if (gb_default) { |
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144 | GBDATA *bgcolor = GB_search(gb_default, "window/background", GB_STRING); |
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145 | if (bgcolor) GB_write_string(bgcolor, "#f33"); |
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146 | } |
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147 | } |
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148 | |
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149 | return (AW_default)gb_default; |
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150 | } |
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151 | |
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152 | static void destroy_AW_root() { |
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153 | delete AW_root::SINGLETON; |
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154 | AW_root::SINGLETON = NULp; |
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155 | } |
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156 | |
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157 | |
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158 | AW_root::AW_root(const char *propertyFile, const char *program, bool no_exit, UserActionTracker *user_tracker) |
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159 | : tracker(user_tracker), |
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160 | changer_of_variable(NULp), |
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161 | focus_follows_mouse(false), |
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162 | number_of_toggle_fields(0), |
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163 | number_of_option_menus(0), |
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164 | disable_callbacks(false), |
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165 | current_modal_window(NULp), |
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166 | active_windows(0) |
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167 | { |
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168 | aw_assert(!AW_root::SINGLETON); // only one instance allowed |
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169 | AW_root::SINGLETON = this; |
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170 | |
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171 | prvt = new AW_root_Motif; |
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172 | |
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173 | init_variables(load_properties(propertyFile)); |
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174 | init_root(program, no_exit); |
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175 | |
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176 | tracker = user_tracker; |
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177 | |
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178 | atexit(destroy_AW_root); // do not call this before opening properties DB! |
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179 | } |
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180 | |
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181 | #if defined(UNIT_TESTS) |
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182 | AW_root::AW_root(const char *propertyFile, UnittestMock /*mock*/) |
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183 | : button_sens_list(NULp), |
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184 | tracker(NULp), |
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185 | prvt(NULp), |
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186 | value_changed(false), |
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187 | changer_of_variable(NULp), |
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188 | y_correction_for_input_labels(0), |
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189 | global_mask(0), |
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190 | focus_follows_mouse(false), |
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191 | number_of_toggle_fields(0), |
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192 | number_of_option_menus(0), |
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193 | program_name(NULp), |
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194 | disable_callbacks(false), |
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195 | current_modal_window(NULp), |
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196 | active_windows(0), |
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197 | font_width(0), |
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198 | font_height(0), |
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199 | font_ascent(0), |
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200 | color_mode(AW_MONO_COLOR) |
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201 | { |
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202 | aw_assert(!AW_root::SINGLETON); // only one instance allowed |
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203 | AW_root::SINGLETON = this; |
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204 | |
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205 | init_variables(load_properties(propertyFile)); |
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206 | atexit(destroy_AW_root); // do not call this before opening properties DB! |
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207 | } |
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208 | #endif |
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209 | |
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210 | void AW_root::setUserActionTracker(UserActionTracker *user_tracker) { |
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211 | aw_assert(user_tracker); |
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212 | aw_assert(tracker->is_replaceable()); // there is already another tracker (program-logic-error) |
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213 | |
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214 | delete tracker; |
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215 | tracker = user_tracker; |
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216 | } |
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217 | |
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218 | AW_awar *AW_root::label_is_awar(const char *label) { |
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219 | AW_awar *awar_exists = NULp; |
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220 | size_t off = strcspn(label, "/ "); |
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221 | |
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222 | if (label[off] == '/') { // contains '/' and no space before first '/' |
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223 | awar_exists = awar_no_error(label); |
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224 | } |
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225 | return awar_exists; |
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226 | } |
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227 | |
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228 | void AW_root::define_remote_command(AW_cb *cbs) { |
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229 | if (cbs->contains(AnyWinCB(AW_POPDOWN))) { |
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230 | aw_assert(!cbs->get_cd1() && !cbs->get_cd2()); // popdown takes no parameters (please pass ", 0, 0"!) |
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231 | } |
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232 | |
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233 | AW_cb *old_cbs = (AW_cb*)GBS_write_hash(prvt->action_hash, cbs->id, (long)cbs); |
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234 | if (old_cbs) { |
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235 | if (!old_cbs->is_equal(*cbs)) { // existing remote command replaced by different callback |
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236 | #if defined(DEBUG) |
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237 | fputs(GBS_global_string("Warning: reused callback id '%s' for different callback\n", old_cbs->id), stderr); |
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238 | #if defined(DEVEL_RALF) && 1 |
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239 | aw_assert(0); |
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240 | #endif // DEVEL_RALF |
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241 | #endif // DEBUG |
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242 | } |
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243 | // do not free old_cbs, cause it's still reachable from first widget that defined this remote command |
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244 | } |
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245 | } |
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246 | |
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247 | AW_cb *AW_root::search_remote_command(const char *action) { |
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248 | return (AW_cb *)GBS_read_hash(prvt->action_hash, action); |
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249 | } |
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250 | |
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251 | static void set_focus_policy(const char *, long cl_aww, void *) { |
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252 | AW_window *aww = (AW_window*)cl_aww; |
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253 | aww->set_focus_policy(aww->get_root()->focus_follows_mouse); |
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254 | } |
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255 | void AW_root::apply_focus_policy(bool follow_mouse) { |
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256 | focus_follows_mouse = follow_mouse; |
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257 | GBS_hash_do_const_loop(hash_for_windows, set_focus_policy, NULp); |
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258 | } |
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259 | |
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260 | void AW_root::apply_sensitivity(AW_active mask) { |
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261 | aw_assert(legal_mask(mask)); |
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262 | AW_buttons_struct *list; |
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263 | |
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264 | global_mask = mask; |
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265 | for (list = button_sens_list; list; list = list->next) { |
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266 | XtSetSensitive(list->button, (list->mask & mask) ? True : False); |
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267 | } |
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268 | } |
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269 | |
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270 | |
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271 | struct fallbacks { |
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272 | const char *fb; |
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273 | const char *awar; |
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274 | const char *init; |
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275 | }; |
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276 | |
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277 | static struct fallbacks aw_fb[] = { |
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278 | // Name fallback awarname default value |
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279 | { "FontList", "window/font", "8x13bold" }, |
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280 | { "background", "window/background", "grey" }, |
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281 | { "foreground", "window/foreground", "Black", }, |
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282 | { NULp, "window/color_1", "red", }, |
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283 | { NULp, "window/color_2", "green", }, |
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284 | { NULp, "window/color_3", "blue", }, |
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285 | { NULp, NULp, NULp } |
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286 | }; |
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287 | |
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288 | |
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289 | void AW_root::init_variables(AW_default database) { |
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290 | application_database = database; |
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291 | hash_table_for_variables = GBS_create_hash(1000, GB_MIND_CASE); |
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292 | hash_for_windows = GBS_create_hash(100, GB_MIND_CASE); |
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293 | |
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294 | for (int i=0; aw_fb[i].awar; ++i) { |
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295 | awar_string(aw_fb[i].awar, aw_fb[i].init, application_database); |
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296 | } |
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297 | } |
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298 | |
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299 | static void aw_message_and_dump_stderr(const char *msg) { |
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300 | fflush(stdout); |
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301 | fprintf(stderr, "ARB: %s\n", msg); // print to console as well |
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302 | fflush(stderr); |
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303 | aw_message(msg); |
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304 | } |
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305 | static void dump_stdout(const char *msg) { |
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306 | fprintf(stdout, "ARB: %s\n", msg); |
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307 | } |
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308 | |
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309 | static arb_status_implementation AW_status_impl = { |
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310 | AST_RANDOM, |
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311 | aw_openstatus, // openstatus |
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312 | aw_closestatus, // closestatus |
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313 | aw_status_title, // set_title |
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314 | aw_status_subtitle, // set_subtitle |
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315 | aw_status_gauge, // set_gauge |
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316 | aw_status_aborted, // user_abort |
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317 | }; |
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318 | |
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319 | static arb_handlers aw_handlers = { |
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320 | aw_message_and_dump_stderr, |
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321 | aw_message, |
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322 | dump_stdout, |
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323 | AW_status_impl, |
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324 | }; |
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325 | |
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326 | static void free_action(long action) { |
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327 | AW_cb *cb = (AW_cb*)action; |
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328 | delete cb; |
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329 | } |
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330 | |
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331 | void AW_root::init_root(const char *programname, bool no_exit) { |
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332 | // initialize ARB X application |
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333 | int a = 0; |
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334 | XFontStruct *fontstruct; |
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335 | const int MAX_FALLBACKS = 30; |
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336 | char *fallback_resources[MAX_FALLBACKS]; |
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337 | |
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338 | prvt->action_hash = GBS_create_dynaval_hash(1000, GB_MIND_CASE, free_action); // actions are added via define_remote_command() |
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339 | |
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340 | p_r-> no_exit = no_exit; |
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341 | program_name = strdup(programname); |
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342 | |
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343 | int i; |
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344 | for (i=0; aw_fb[i].fb; i++) { |
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345 | GBDATA *gb_awar = GB_search((GBDATA*)application_database, aw_fb[i].awar, GB_FIND); |
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346 | fallback_resources[i] = GBS_global_string_copy("*%s: %s", aw_fb[i].fb, GB_read_char_pntr(gb_awar)); |
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347 | } |
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348 | fallback_resources[i] = NULp; |
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349 | aw_assert(i<MAX_FALLBACKS); |
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350 | |
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351 | ARB_install_handlers(aw_handlers); |
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352 | |
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353 | // @@@ FIXME: the next line hangs if program runs inside debugger |
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354 | p_r->toplevel_widget = XtOpenApplication(&(p_r->context), programname, |
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355 | NULp, 0, // XrmOptionDescRec+numOpts |
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356 | &a, // &argc |
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357 | NULp, // argv |
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358 | fallback_resources, |
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359 | applicationShellWidgetClass, // widget class |
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360 | NULp, 0); |
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361 | |
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362 | for (i=0; fallback_resources[i]; i++) free(fallback_resources[i]); |
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363 | |
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364 | p_r->display = XtDisplay(p_r->toplevel_widget); |
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365 | |
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366 | if (!p_r->display) { |
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367 | printf("cannot open display\n"); |
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368 | exit(EXIT_FAILURE); |
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369 | } |
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370 | { |
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371 | GBDATA *gbd = (GBDATA*)application_database; |
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372 | const char *font = GB_read_char_pntr(GB_search(gbd, "window/font", GB_FIND)); |
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373 | if (!(fontstruct = XLoadQueryFont(p_r->display, font))) { |
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374 | if (!(fontstruct = XLoadQueryFont(p_r->display, "fixed"))) { |
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375 | printf("can not load font\n"); |
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376 | exit(EXIT_FAILURE); |
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377 | } |
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378 | } |
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379 | } |
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380 | |
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381 | if (fontstruct->max_bounds.width == fontstruct->min_bounds.width) { |
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382 | font_width = fontstruct->max_bounds.width; |
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383 | } |
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384 | else { |
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385 | font_width = (fontstruct->min_bounds.width |
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386 | + fontstruct->max_bounds.width) / 2; |
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387 | } |
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388 | |
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389 | font_height = fontstruct->max_bounds.ascent |
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390 | + fontstruct->max_bounds.descent; |
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391 | font_ascent = fontstruct->max_bounds.ascent; |
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392 | |
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393 | p_r->fontlist = XmFontListCreate(fontstruct, XmSTRING_DEFAULT_CHARSET); |
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394 | |
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395 | button_sens_list = NULp; |
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396 | |
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397 | p_r->last_option_menu = p_r->current_option_menu = p_r->option_menu_list = NULp; |
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398 | p_r->last_toggle_field = p_r->toggle_field_list = NULp; |
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399 | p_r->last_selection_list = p_r->selection_list = NULp; |
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400 | |
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401 | value_changed = false; |
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402 | y_correction_for_input_labels = 5; |
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403 | global_mask = AWM_ALL; |
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404 | |
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405 | p_r->screen_depth = PlanesOfScreen(XtScreen(p_r->toplevel_widget)); |
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406 | if (p_r->screen_depth == 1) { |
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407 | color_mode = AW_MONO_COLOR; |
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408 | } |
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409 | else { |
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410 | color_mode = AW_RGB_COLOR; |
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411 | } |
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412 | p_r->colormap = DefaultColormapOfScreen(XtScreen(p_r->toplevel_widget)); |
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413 | p_r->clock_cursor = XCreateFontCursor(XtDisplay(p_r->toplevel_widget), XC_watch); |
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414 | p_r->question_cursor = XCreateFontCursor(XtDisplay(p_r->toplevel_widget), XC_question_arrow); |
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415 | |
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416 | create_colormap(); |
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417 | aw_root_init_font(XtDisplay(p_r->toplevel_widget)); |
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418 | aw_install_xkeys(XtDisplay(p_r->toplevel_widget)); |
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419 | |
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420 | } |
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421 | |
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422 | AW_root::~AW_root() { |
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423 | delete tracker; tracker = NULp; |
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424 | delete button_sens_list; button_sens_list = NULp; |
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425 | |
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426 | exit_root(); |
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427 | exit_variables(); |
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428 | aw_assert(this == AW_root::SINGLETON); |
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429 | |
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430 | delete prvt; |
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431 | |
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432 | free(program_name); |
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433 | |
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434 | AW_root::SINGLETON = NULp; |
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435 | } |
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436 | |
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437 | /** |
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438 | * A list of awar names that contain color names |
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439 | */ |
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440 | static const char *aw_awar_2_color[] = { |
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441 | "window/background", |
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442 | "window/foreground", |
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443 | "window/color_1", |
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444 | "window/color_2", |
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445 | "window/color_3", |
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446 | NULp |
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447 | }; |
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448 | |
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449 | void AW_root::create_colormap() { |
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450 | |
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451 | XColor xcolor_returned, xcolor_exakt; |
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452 | GBDATA *gbd = check_properties(NULp); |
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453 | ARB_calloc(prvt->color_table, AW_STD_COLOR_IDX_MAX); |
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454 | |
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455 | // Color monitor, B&W monitor is no longer supported |
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456 | const char **awar_2_color; |
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457 | int color; |
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458 | for (color = 0, awar_2_color = aw_awar_2_color; |
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459 | *awar_2_color; |
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460 | awar_2_color++, color++) |
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461 | { |
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462 | const char *name_of_color = GB_read_char_pntr(GB_search(gbd, *awar_2_color, GB_FIND)); |
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463 | if (XAllocNamedColor(prvt->display, prvt->colormap, name_of_color, &xcolor_returned, &xcolor_exakt) == 0) { |
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464 | fprintf(stderr, "XAllocColor failed: %s\n", name_of_color); |
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465 | } |
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466 | else { |
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467 | prvt->color_table[color] = xcolor_returned.pixel; |
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468 | } |
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469 | } |
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470 | |
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471 | prvt->foreground = BlackPixelOfScreen(XtScreen(prvt->toplevel_widget)); |
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472 | XtVaGetValues(prvt->toplevel_widget, XmNbackground, &prvt->background, NULp); |
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473 | // AW_WINDOW_DRAG see init_devices |
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474 | } |
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475 | |
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476 | |
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477 | void AW_root::window_hide(AW_window *aww) { |
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478 | active_windows--; |
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479 | if (active_windows<0) { |
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480 | exit(EXIT_SUCCESS); |
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481 | } |
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482 | if (current_modal_window == aww) { |
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483 | current_modal_window = NULp; |
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484 | } |
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485 | } |
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486 | void AW_root::window_show() { |
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487 | active_windows++; |
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488 | } |
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489 | |
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490 | /// begin timer stuff |
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491 | |
---|
492 | class AW_timer_cb_struct : virtual Noncopyable { |
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493 | AW_root *awr; |
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494 | TimedCallback cb; |
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495 | |
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496 | AW_timer_cb_struct(AW_root *aw_root, const TimedCallback& tcb) : awr(aw_root), cb(tcb) {} // use install! |
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497 | public: |
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498 | |
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499 | typedef XtTimerCallbackProc timer_callback; |
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500 | |
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501 | static void install(AW_root *aw_root, const TimedCallback& tcb, unsigned ms, timer_callback tc) { |
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502 | AW_timer_cb_struct *tcbs = new AW_timer_cb_struct(aw_root, tcb); |
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503 | tcbs->callAfter(ms, tc); |
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504 | } |
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505 | |
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506 | unsigned call() { |
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507 | return cb(awr); |
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508 | } |
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509 | unsigned callOrDelayIfDisabled() { |
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510 | return awr->disable_callbacks |
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511 | ? 25 // delay by 25 ms |
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512 | : cb(awr); |
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513 | } |
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514 | void callAfter(unsigned ms, timer_callback tc) { |
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515 | XtAppAddTimeOut(awr->prvt->context, ms, tc, this); |
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516 | } |
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517 | void recallOrUninstall(unsigned restart, timer_callback tc) { |
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518 | if (restart) callAfter(restart, tc); |
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519 | else delete this; |
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520 | } |
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521 | }; |
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522 | |
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523 | static void AW_timer_callback(XtPointer aw_timer_cb_struct, XtIntervalId*) { |
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524 | AW_timer_cb_struct *tcbs = (AW_timer_cb_struct *)aw_timer_cb_struct; |
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525 | if (tcbs) { |
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526 | unsigned restart = tcbs->callOrDelayIfDisabled(); |
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527 | tcbs->recallOrUninstall(restart, AW_timer_callback); |
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528 | } |
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529 | } |
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530 | static void AW_timer_callback_never_disabled(XtPointer aw_timer_cb_struct, XtIntervalId*) { |
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531 | AW_timer_cb_struct *tcbs = (AW_timer_cb_struct *)aw_timer_cb_struct; |
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532 | if (tcbs) { |
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533 | unsigned restart = tcbs->call(); |
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534 | tcbs->recallOrUninstall(restart, AW_timer_callback_never_disabled); |
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535 | } |
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536 | } |
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537 | |
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538 | void AW_root::add_timed_callback(int ms, const TimedCallback& tcb) { |
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539 | AW_timer_cb_struct::install(this, tcb, ms, AW_timer_callback); |
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540 | } |
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541 | void AW_root::add_timed_callback_never_disabled(int ms, const TimedCallback& tcb) { |
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542 | AW_timer_cb_struct::install(this, tcb, ms, AW_timer_callback_never_disabled); |
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543 | } |
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544 | |
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545 | /// end timer stuff |
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546 | |
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547 | /// begin awar stuff |
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548 | |
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549 | AW_awar *AW_root::awar_no_error(const char *var_name) { |
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550 | return hash_table_for_variables ? (AW_awar *)GBS_read_hash(hash_table_for_variables, var_name) : NULp; |
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551 | } |
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552 | |
---|
553 | |
---|
554 | AW_awar *AW_root::awar(const char *var_name) { |
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555 | AW_awar *vs = awar_no_error(var_name); |
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556 | if (!vs) GBK_terminatef("AWAR %s not defined", var_name); |
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557 | return vs; |
---|
558 | } |
---|
559 | |
---|
560 | AW_awar *AW_root::awar_float(const char *var_name, float default_value, AW_default default_file) { |
---|
561 | AW_awar *vs = awar_no_error(var_name); |
---|
562 | if (!vs) { |
---|
563 | default_file = check_properties(default_file); |
---|
564 | vs = new AW_awar(AW_FLOAT, var_name, "", default_value, default_file, this); |
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565 | GBS_write_hash(hash_table_for_variables, var_name, (long)vs); |
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566 | } |
---|
567 | return vs; |
---|
568 | } |
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569 | |
---|
570 | AW_awar *AW_root::awar_string(const char *var_name, const char *default_value, AW_default default_file) { |
---|
571 | AW_awar *vs = awar_no_error(var_name); |
---|
572 | if (!vs) { |
---|
573 | default_file = check_properties(default_file); |
---|
574 | vs = new AW_awar(AW_STRING, var_name, default_value, 0.0, default_file, this); |
---|
575 | GBS_write_hash(hash_table_for_variables, var_name, (long)vs); |
---|
576 | } |
---|
577 | return vs; |
---|
578 | } |
---|
579 | |
---|
580 | AW_awar *AW_root::awar_int(const char *var_name, long default_value, AW_default default_file) { |
---|
581 | AW_awar *vs = awar_no_error(var_name); |
---|
582 | if (!vs) { |
---|
583 | default_file = check_properties(default_file); |
---|
584 | vs = new AW_awar(AW_INT, var_name, (const char *)default_value, 0.0, default_file, this); |
---|
585 | GBS_write_hash(hash_table_for_variables, var_name, (long)vs); |
---|
586 | } |
---|
587 | return vs; |
---|
588 | } |
---|
589 | |
---|
590 | AW_awar *AW_root::awar_pointer(const char *var_name, GBDATA *default_value, AW_default default_file) { |
---|
591 | AW_awar *vs = awar_no_error(var_name); |
---|
592 | if (!vs) { |
---|
593 | default_file = check_properties(default_file); |
---|
594 | vs = new AW_awar(AW_POINTER, var_name, (const char *)default_value, 0.0, default_file, this); |
---|
595 | GBS_write_hash(hash_table_for_variables, var_name, (long)vs); |
---|
596 | } |
---|
597 | return vs; |
---|
598 | } |
---|
599 | |
---|
600 | static void awar_set_temp_if_is_default(const char *, long val, void *cl_gb_db) { |
---|
601 | AW_awar *awar = (AW_awar*)val; |
---|
602 | awar->set_temp_if_is_default((GBDATA*)cl_gb_db); |
---|
603 | } |
---|
604 | |
---|
605 | void AW_root::dont_save_awars_with_default_value(GBDATA *gb_db) { |
---|
606 | // this should only be called |
---|
607 | // - before saving properties |
---|
608 | // - before saving any main application DB that may contain AWARs |
---|
609 | // |
---|
610 | // Bug: Awars created in main DB by clients (e.g. EDIT4) will stay temporary |
---|
611 | // and will never be saved again. |
---|
612 | // |
---|
613 | // Note: uninstanciated AWARs will not be affected, so different applications with |
---|
614 | // different AWAR subsets should be no problem. |
---|
615 | // 'different applications' here e.g. also includes different calls to arb_ntree |
---|
616 | // (e.g. merge-tool, importer, tree-window, ...) |
---|
617 | // |
---|
618 | // Problems arise when an awar with the same name is used for two different purposes |
---|
619 | // or with different default values (regardless whether in properties or main-DB). |
---|
620 | // But this has already been problematic before. |
---|
621 | |
---|
622 | GBS_hash_do_const_loop(hash_table_for_variables, awar_set_temp_if_is_default, (void*)gb_db); |
---|
623 | } |
---|
624 | |
---|
625 | void AW_root::main_loop() { |
---|
626 | XtAppMainLoop(p_r->context); |
---|
627 | } |
---|
628 | |
---|
629 | static void unlink_awar_from_DB(const char */*key*/, long cl_awar, void *cl_gb_main) { |
---|
630 | AW_awar *awar = (AW_awar*)cl_awar; |
---|
631 | GBDATA *gb_main = (GBDATA*)cl_gb_main; |
---|
632 | awar->unlink_from_DB(gb_main); |
---|
633 | } |
---|
634 | |
---|
635 | void AW_root::unlink_awars_from_DB(GBDATA *gb_main) { |
---|
636 | aw_assert(GB_get_root(gb_main) == gb_main); |
---|
637 | |
---|
638 | GB_transaction ta(gb_main); // needed in awar-callbacks during unlink |
---|
639 | GBS_hash_do_const_loop(hash_table_for_variables, unlink_awar_from_DB, gb_main); |
---|
640 | } |
---|
641 | |
---|
642 | typedef std::list<GBDATA*> DataPointers; |
---|
643 | |
---|
644 | static GB_ERROR set_parents_with_only_temp_childs_temp(GBDATA *gbd, DataPointers& made_temp) { |
---|
645 | GB_ERROR error = NULp; |
---|
646 | |
---|
647 | if (GB_read_type(gbd) == GB_DB && !GB_is_temporary(gbd)) { |
---|
648 | bool has_savable_child = false; |
---|
649 | for (GBDATA *gb_child = GB_child(gbd); gb_child && !error; gb_child = GB_nextChild(gb_child)) { |
---|
650 | bool is_tmp = GB_is_temporary(gb_child); |
---|
651 | if (!is_tmp) { |
---|
652 | error = set_parents_with_only_temp_childs_temp(gb_child, made_temp); |
---|
653 | if (!error) is_tmp = GB_is_temporary(gb_child); // may have changed |
---|
654 | |
---|
655 | if (!is_tmp) has_savable_child = true; |
---|
656 | } |
---|
657 | } |
---|
658 | if (!error && !has_savable_child) { |
---|
659 | error = GB_set_temporary(gbd); |
---|
660 | made_temp.push_back(gbd); |
---|
661 | } |
---|
662 | } |
---|
663 | |
---|
664 | return error; |
---|
665 | } |
---|
666 | |
---|
667 | static GB_ERROR clear_temp_flags(DataPointers& made_temp) { |
---|
668 | GB_ERROR error = NULp; |
---|
669 | for (DataPointers::iterator mt = made_temp.begin(); mt != made_temp.end() && !error; ++mt) { |
---|
670 | error = GB_clear_temporary(*mt); |
---|
671 | } |
---|
672 | return error; |
---|
673 | } |
---|
674 | |
---|
675 | GB_ERROR AW_root::save_properties(const char *filename) { |
---|
676 | GB_ERROR error = NULp; |
---|
677 | GBDATA *gb_prop = application_database; |
---|
678 | |
---|
679 | if (!gb_prop) { |
---|
680 | error = "No properties loaded - won't save"; |
---|
681 | } |
---|
682 | else { |
---|
683 | error = GB_push_transaction(gb_prop); |
---|
684 | if (!error) { |
---|
685 | aw_update_all_window_geometry_awars(this); |
---|
686 | error = GB_pop_transaction(gb_prop); |
---|
687 | if (!error) { |
---|
688 | dont_save_awars_with_default_value(gb_prop); |
---|
689 | |
---|
690 | DataPointers made_temp; |
---|
691 | error = set_parents_with_only_temp_childs_temp(gb_prop, made_temp); // avoid saving empty containers |
---|
692 | if (!error) error = GB_save_in_arbprop(gb_prop, filename, "a"); |
---|
693 | if (!error) error = clear_temp_flags(made_temp); |
---|
694 | } |
---|
695 | } |
---|
696 | } |
---|
697 | |
---|
698 | return error; |
---|
699 | } |
---|