ui/gtk/button.c

Thu, 08 Feb 2024 10:31:19 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Thu, 08 Feb 2024 10:31:19 +0100
changeset 24
12ad3393c151
parent 0
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child 29
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permissions
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0
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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 *
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4 * Copyright 2017 Olaf Wintermann. All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * 1. Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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11 *
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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26 * POSSIBILITY OF SUCH DAMAGE.
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27 */
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28
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29 #include <stdio.h>
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30 #include <stdlib.h>
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31
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32 #include "button.h"
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33 #include "container.h"
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34 #include <cx/allocator.h>
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35 #include "../common/context.h"
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36 #include "../common/object.h"
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37
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38 UIWIDGET ui_button(UiObject *obj, char *label, ui_callback f, void *data) {
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39 GtkWidget *button = gtk_button_new_with_label(label);
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40
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41 if(f) {
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42 UiEventData *event = malloc(sizeof(UiEventData));
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43 event->obj = obj;
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44 event->userdata = data;
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45 event->callback = f;
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46 event->value = 0;
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47
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48 g_signal_connect(
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49 button,
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50 "clicked",
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51 G_CALLBACK(ui_button_clicked),
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52 event);
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53 g_signal_connect(
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54 button,
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55 "destroy",
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56 G_CALLBACK(ui_destroy_userdata),
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57 event);
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58 }
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59
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60 UiContainer *ct = uic_get_current_container(obj);
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61 ct->add(ct, button, FALSE);
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62
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63 return button;
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64 }
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65
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66
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67 void ui_button_clicked(GtkWidget *widget, UiEventData *event) {
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68 UiEvent e;
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69 e.obj = event->obj;
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70 e.window = event->obj->window;
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71 e.document = event->obj->ctx->document;
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72 e.eventdata = NULL;
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73 e.intval = event->value;
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74 event->callback(&e, event->userdata);
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75 }
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76
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77 int64_t ui_toggle_button_get(UiInteger *integer) {
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78 GtkToggleButton *button = integer->obj;
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79 integer->value = (int)gtk_toggle_button_get_active(button);
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80 return integer->value;
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81 }
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82
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83 void ui_toggle_button_set(UiInteger *integer, int64_t value) {
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84 GtkToggleButton *button = integer->obj;
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85 integer->value = value;
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86 gtk_toggle_button_set_active(button, value != 0 ? TRUE : FALSE);
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87 }
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88
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89 void ui_toggled_obs(GtkToggleToolButton *widget, UiVarEventData *event) {
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90 UiEvent e;
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91 e.obj = event->obj;
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92 e.window = event->obj->window;
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93 e.document = event->obj->ctx->document;
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94 e.eventdata = event->var->value;
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95 e.intval = gtk_toggle_tool_button_get_active(widget);
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96
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97 UiInteger *i = event->var->value;
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98 ui_notify_evt(i->observers, &e);
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99 }
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100
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101 UIWIDGET ui_checkbox_var(UiObject *obj, char *label, UiVar *var) {
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102 GtkWidget *button = gtk_check_button_new_with_label(label);
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103
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104 // bind value
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105 if(var) {
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106 UiInteger *value = var->value;
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107 value->obj = GTK_TOGGLE_BUTTON(button);
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108 value->get = ui_toggle_button_get;
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109 value->set = ui_toggle_button_set;
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110 gtk_toggle_button_set_active(value->obj, value->value);
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111
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112 UiVarEventData *event = malloc(sizeof(UiVarEventData));
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113 event->obj = obj;
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114 event->var = var;
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115 event->observers = NULL;
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116
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117 g_signal_connect(
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118 button,
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119 "clicked",
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120 G_CALLBACK(ui_toggled_obs),
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121 event);
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122 g_signal_connect(
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123 button,
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124 "destroy",
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125 G_CALLBACK(ui_destroy_vardata),
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126 event);
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127 }
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128
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129 UiContainer *ct = uic_get_current_container(obj);
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130 ct->add(ct, button, FALSE);
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131
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132 return button;
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133 }
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134
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135 UIWIDGET ui_checkbox(UiObject *obj, char *label, UiInteger *value) {
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136 UiVar *var = NULL;
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137 if(value) {
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138 var = malloc(sizeof(UiVar));
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139 var->value = value;
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140 var->type = UI_VAR_SPECIAL;
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141 }
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142 return ui_checkbox_var(obj, label, var);
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143 }
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144
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145 UIWIDGET ui_checkbox_nv(UiObject *obj, char *label, char *varname) {
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146 UiVar *var = uic_create_var(obj->ctx, varname, UI_VAR_INTEGER);
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147 return ui_checkbox_var(obj, label, var);
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148 }
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149
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150
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151 UIWIDGET ui_radiobutton_var(UiObject *obj, char *label, UiVar *var) {
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152 GSList *rg = NULL;
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153 UiInteger *rgroup;
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154
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155 if(var) {
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156 rgroup = var->value;
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157 rg = rgroup->obj;
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158 }
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159
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160 GtkWidget *rbutton = gtk_radio_button_new_with_label(rg, label);
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161 rg = gtk_radio_button_get_group(GTK_RADIO_BUTTON(rbutton));
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162
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163 if(rgroup) {
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164 rgroup->obj = rg;
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165 rgroup->get = ui_radiobutton_get;
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166 rgroup->set = ui_radiobutton_set;
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167
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168 ui_radiobutton_set(rgroup, rgroup->value);
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169
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170 UiVarEventData *event = malloc(sizeof(UiVarEventData));
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171 event->obj = obj;
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172 event->var = var;
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173 event->observers = NULL;
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174
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175 g_signal_connect(
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176 rbutton,
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177 "clicked",
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178 G_CALLBACK(ui_radio_obs),
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179 event);
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180 g_signal_connect(
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181 rbutton,
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182 "destroy",
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183 G_CALLBACK(ui_destroy_vardata),
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184 event);
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185 }
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186
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187 UiContainer *ct = uic_get_current_container(obj);
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188 ct->add(ct, rbutton, FALSE);
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189
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190 return rbutton;
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191 }
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192
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193 UIWIDGET ui_radiobutton(UiObject *obj, char *label, UiInteger *rgroup) {
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194 UiVar *var = NULL;
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195 if(rgroup) {
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196 var = malloc(sizeof(UiVar));
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197 var->value = rgroup;
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198 var->type = UI_VAR_SPECIAL;
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199 }
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200 return ui_radiobutton_var(obj, label, var);
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201 }
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202
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203 UIWIDGET ui_radiobutton_nv(UiObject *obj, char *label, char *varname) {
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204 UiVar *var = uic_create_var(obj->ctx, varname, UI_VAR_INTEGER);
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205 return ui_radiobutton_var(obj, label, var);
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206 }
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207
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208 void ui_radio_obs(GtkToggleToolButton *widget, UiVarEventData *event) {
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209 UiInteger *i = event->var->value;
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210
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211 UiEvent e;
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212 e.obj = event->obj;
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213 e.window = event->obj->window;
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214 e.document = event->obj->ctx->document;
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215 e.eventdata = NULL;
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216 e.intval = i->get(i);
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217
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218 ui_notify_evt(i->observers, &e);
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219 }
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220
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221 int64_t ui_radiobutton_get(UiInteger *value) {
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222 int selection = 0;
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223 GSList *ls = value->obj;
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224 int i = 0;
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225 guint len = g_slist_length(ls);
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226 while(ls) {
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227 if(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(ls->data))) {
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228 selection = len - i - 1;
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229 break;
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230 }
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231 ls = ls->next;
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232 i++;
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233 }
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234
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235 value->value = selection;
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236 return selection;
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237 }
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238
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239 void ui_radiobutton_set(UiInteger *value, int64_t i) {
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240 GSList *ls = value->obj;
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241 int s = g_slist_length(ls) - 1 - i;
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242 int j = 0;
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243 while(ls) {
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244 if(j == s) {
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245 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(ls->data), TRUE);
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246 break;
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247 }
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248 ls = ls->next;
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249 j++;
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250 }
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251
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252 value->value = i;
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253 }
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254

mercurial