ui/gtk/tree.c

Sun, 12 Nov 2017 12:03:50 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Sun, 12 Nov 2017 12:03:50 +0100
changeset 145
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parent 142
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child 146
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permissions
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adds spinner widget (GTK)

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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 #include <string.h>
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32
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33 #include "../common/context.h"
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34 #include "../common/object.h"
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35 #include "container.h"
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36
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37 #include "tree.h"
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39
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40 void* ui_strmodel_getvalue(void *elm, int column) {
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41 return column == 0 ? elm : NULL;
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42 }
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44
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45 UIWIDGET ui_listview_str(UiObject *obj, UiList *list, ui_callback f, void *udata) {
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46 return ui_listview(obj, list, ui_strmodel_getvalue, f, udata);
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47 }
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48
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49 UIWIDGET ui_listview_var(UiObject *obj, UiVar *var, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
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50 // create treeview
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51 GtkWidget *view = gtk_tree_view_new();
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52 GtkCellRenderer *renderer = gtk_cell_renderer_text_new();
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53 GtkTreeViewColumn *column = gtk_tree_view_column_new_with_attributes(NULL, renderer, "text", 0, NULL);
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54 gtk_tree_view_append_column(GTK_TREE_VIEW(view), column);
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55
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56 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(view), FALSE);
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57 #ifdef UI_GTK3
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58 #if GTK_MINOR_VERSION >= 8
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59 gtk_tree_view_set_activate_on_single_click(GTK_TREE_VIEW(view), TRUE);
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60 #else
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61 // TODO: implement for older gtk3
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62 #endif
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63 #else
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64 // TODO: implement for gtk2
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65 #endif
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66
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67 UiModel *model = ui_model_info(obj->ctx, UI_STRING, "", -1);
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68 model->getvalue = getvalue;
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69 UiList *list = var->value;
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70 UiListModel *listmodel = ui_list_model_new(var, model);
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71 gtk_tree_view_set_model(GTK_TREE_VIEW(view), GTK_TREE_MODEL(listmodel));
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72
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73 UiListView *listview = malloc(sizeof(UiListView));
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74 listview->ctx = obj->ctx;
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75 listview->widget = view;
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76 listview->var = var;
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77 listview->model = model;
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78 g_signal_connect(
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79 view,
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80 "destroy",
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81 G_CALLBACK(ui_listview_destroy),
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82 listview);
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83
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84 // bind var
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85 list->update = ui_listview_update;
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86 list->obj = listview;
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87
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88 // add callback
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89 if(f) {
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90 UiTreeEventData *event = ui_malloc(obj->ctx, sizeof(UiTreeEventData));
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91 event->obj = obj;
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92 event->userdata = udata;
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93 event->activate = f;
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94 event->selection = NULL;
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95
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96 g_signal_connect(
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97 view,
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98 "row-activated",
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99 G_CALLBACK(ui_listview_activate_event),
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100 event);
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101 }
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102
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103 // add widget to the current container
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104 GtkWidget *scroll_area = gtk_scrolled_window_new(NULL, NULL);
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105 gtk_scrolled_window_set_policy(
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106 GTK_SCROLLED_WINDOW(scroll_area),
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107 GTK_POLICY_AUTOMATIC,
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108 GTK_POLICY_AUTOMATIC); // GTK_POLICY_ALWAYS
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109 gtk_container_add(GTK_CONTAINER(scroll_area), view);
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110
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111 UiContainer *ct = uic_get_current_container(obj);
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112 ct->add(ct, scroll_area, TRUE);
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113
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114 // ct->current should point to view, not scroll_area, to make it possible
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115 // to add a context menu
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116 ct->current = view;
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117
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118 return scroll_area;
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119 }
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120
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121 UIWIDGET ui_listview(UiObject *obj, UiList *list, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
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122 UiVar *var = malloc(sizeof(UiVar));
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123 var->value = list;
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124 var->type = UI_VAR_SPECIAL;
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125 return ui_listview_var(obj, var, getvalue, f, udata);
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126 }
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127
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128 UIWIDGET ui_listview_nv(UiObject *obj, char *varname, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
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129 UiVar *var = uic_create_var(obj->ctx, varname, UI_VAR_LIST);
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130 if(var) {
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131 return ui_listview_var(obj, var, getvalue, f, udata);
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132 } else {
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133 // TODO: error
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134 }
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135 return NULL;
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136 }
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137
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138
142
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139 UIWIDGET ui_table_var(UiObject *obj, UiVar *var, UiModel *model, UiListCallbacks cb) {
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140 // create treeview
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141 GtkWidget *view = gtk_tree_view_new();
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142 int addi = 0;
142
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143 for(int i=0;i<model->columns;i++) {
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144 GtkTreeViewColumn *column = NULL;
142
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145 if(model->types[i] == UI_ICON_TEXT) {
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146 column = gtk_tree_view_column_new();
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147 gtk_tree_view_column_set_title(column, model->titles[i]);
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148
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149 GtkCellRenderer *iconrenderer = gtk_cell_renderer_pixbuf_new();
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150 GtkCellRenderer *textrenderer = gtk_cell_renderer_text_new();
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151
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152 gtk_tree_view_column_pack_end(column, textrenderer, TRUE);
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153 gtk_tree_view_column_pack_start(column, iconrenderer, FALSE);
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154
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155
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156 gtk_tree_view_column_add_attribute(column, iconrenderer, "icon-name", i);
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157 gtk_tree_view_column_add_attribute(column, textrenderer, "text", i+1);
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158
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159 addi++;
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160 } else {
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161 GtkCellRenderer *renderer = gtk_cell_renderer_text_new();
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162 column = gtk_tree_view_column_new_with_attributes(
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163 model->titles[i],
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164 renderer,
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165 "text",
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166 i + addi,
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167 NULL);
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168 }
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169 gtk_tree_view_column_set_resizable(column, TRUE);
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170 gtk_tree_view_append_column(GTK_TREE_VIEW(view), column);
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171 }
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172
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173 //gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(view), FALSE);
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174 #ifdef UI_GTK3
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175 //gtk_tree_view_set_activate_on_single_click(GTK_TREE_VIEW(view), TRUE);
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176 #else
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177
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178 #endif
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179
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180 UiList *list = var->value;
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181 UiListModel *listmodel = ui_list_model_new(var, model);
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182 gtk_tree_view_set_model(GTK_TREE_VIEW(view), GTK_TREE_MODEL(listmodel));
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183
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184 // add TreeView as observer to the UiList to update the TreeView if the
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185 // data changes
140
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186 UiListView *tableview = ucx_mempool_malloc(obj->ctx->mempool, sizeof(UiListView));
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187 tableview->ctx = obj->ctx;
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188 tableview->widget = view;
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189 tableview->var = var;
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190 tableview->model = model;
140
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191 g_signal_connect(
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192 view,
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193 "destroy",
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194 G_CALLBACK(ui_listview_destroy),
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195 tableview);
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196
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197 // bind var
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198 list->update = ui_listview_update;
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199 list->obj = tableview;
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200
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201 // add callback
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202 UiTreeEventData *event = ui_malloc(obj->ctx, sizeof(UiTreeEventData));
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203 event->obj = obj;
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204 event->activate = cb.activate;
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205 event->selection = cb.selection;
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206 event->userdata = cb.userdata;
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207 if(cb.activate) {
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208 g_signal_connect(
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209 view,
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210 "row-activated",
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211 G_CALLBACK(ui_listview_activate_event),
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212 event);
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213 }
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214 if(cb.selection) {
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215 GtkTreeSelection *selection = gtk_tree_view_get_selection(
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216 GTK_TREE_VIEW(view));
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217 g_signal_connect(
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218 selection,
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219 "changed",
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220 G_CALLBACK(ui_listview_selection_event),
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221 event);
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222 }
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223 // TODO: destroy callback
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224
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225 GtkTreeSelection *selection = gtk_tree_view_get_selection (GTK_TREE_VIEW(view));
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226 gtk_tree_selection_set_mode(selection, GTK_SELECTION_MULTIPLE);
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227
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228 // add widget to the current container
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229 GtkWidget *scroll_area = gtk_scrolled_window_new(NULL, NULL);
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230 gtk_scrolled_window_set_policy(
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231 GTK_SCROLLED_WINDOW(scroll_area),
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232 GTK_POLICY_AUTOMATIC,
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233 GTK_POLICY_AUTOMATIC); // GTK_POLICY_ALWAYS
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234 gtk_container_add(GTK_CONTAINER(scroll_area), view);
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235
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236 UiContainer *ct = uic_get_current_container(obj);
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237 ct->add(ct, scroll_area, TRUE);
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238
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239 // ct->current should point to view, not scroll_area, to make it possible
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240 // to add a context menu
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241 ct->current = view;
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242
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243 return scroll_area;
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244 }
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245
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246 UIWIDGET ui_table(UiObject *obj, UiList *list, UiModel *model, UiListCallbacks cb) {
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247 UiVar *var = malloc(sizeof(UiVar));
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248 var->value = list;
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249 var->type = UI_VAR_SPECIAL;
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250 return ui_table_var(obj, var, model, cb);
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251 }
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252
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253 UIWIDGET ui_table_nv(UiObject *obj, char *varname, UiModel *model, UiListCallbacks cb) {
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254 UiVar *var = uic_create_var(obj->ctx, varname, UI_VAR_LIST);
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255 if(var) {
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256 return ui_table_var(obj, var, model, cb);
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257 } else {
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258 // TODO: error
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259 }
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260 return NULL;
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261 }
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262
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263 void ui_listview_update(UiList *list, int i) {
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264 UiListView *view = list->obj;
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265 UiListModel *model = ui_list_model_new(view->var, view->model);
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266 gtk_tree_view_set_model(GTK_TREE_VIEW(view->widget), GTK_TREE_MODEL(model));
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267 // TODO: free old model
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268 }
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269
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270 void ui_listview_destroy(GtkWidget *w, UiListView *v) {
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271 ui_destroy_boundvar(v->ctx, v->var);
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272 // TODO: destroy model?
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273 free(v);
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274 }
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275
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276
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277 void ui_listview_activate_event(
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278 GtkTreeView *treeview,
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279 GtkTreePath *path,
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280 GtkTreeViewColumn *column,
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281 UiTreeEventData *event)
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282 {
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283 UiListSelection *selection = ui_listview_selection(
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284 gtk_tree_view_get_selection(treeview),
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285 event);
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286
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287 UiEvent e;
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288 e.obj = event->obj;
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289 e.window = event->obj->window;
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290 e.document = event->obj->ctx->document;
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291 e.eventdata = selection;
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292 e.intval = selection->count > 0 ? selection->rows[0] : -1;
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293 event->activate(&e, event->userdata);
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294
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295 if(selection->count > 0) {
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296 free(selection->rows);
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297 }
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298 free(selection);
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299 }
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300
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301 void ui_listview_selection_event(
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302 GtkTreeSelection *treeselection,
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303 UiTreeEventData *event)
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304 {
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305 UiListSelection *selection = ui_listview_selection(treeselection, event);
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306
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307 UiEvent e;
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308 e.obj = event->obj;
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309 e.window = event->obj->window;
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310 e.document = event->obj->ctx->document;
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311 e.eventdata = selection;
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312 e.intval = selection->count > 0 ? selection->rows[0] : -1;
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313 event->selection(&e, event->userdata);
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314
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315 if(selection->count > 0) {
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316 free(selection->rows);
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317 }
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318 free(selection);
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319 }
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320
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321 UiListSelection* ui_listview_selection(
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322 GtkTreeSelection *selection,
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323 UiTreeEventData *event)
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324 {
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325 GList *rows = gtk_tree_selection_get_selected_rows(selection, NULL);
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326
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327 UiListSelection *ls = malloc(sizeof(UiListSelection));
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328 ls->count = g_list_length(rows);
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329 ls->rows = calloc(ls->count, sizeof(int));
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330 GList *r = rows;
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331 int i = 0;
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332 while(r) {
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333 GtkTreePath *path = r->data;
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334 ls->rows[i] = ui_tree_path_list_index(path);
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335 r = r->next;
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336 i++;
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337 }
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338 return ls;
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339 }
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340
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341 int ui_tree_path_list_index(GtkTreePath *path) {
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342 int depth = gtk_tree_path_get_depth(path);
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343 if(depth == 0) {
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344 fprintf(stderr, "UiError: treeview selection: depth == 0\n");
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345 return -1;
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346 }
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347 int *indices = gtk_tree_path_get_indices(path);
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348 return indices[depth - 1];
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349 }
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350
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351
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352 /* --------------------------- ComboBox --------------------------- */
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353
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354 UIWIDGET ui_combobox_str(UiObject *obj, UiList *list, ui_callback f, void *udata) {
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355 return ui_combobox(obj, list, ui_strmodel_getvalue, f, udata);
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356 }
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357
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358 UIWIDGET ui_combobox(UiObject *obj, UiList *list, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
140
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359 UiVar *var = malloc(sizeof(UiVar));
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360 var->value = list;
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361 var->type = UI_VAR_SPECIAL;
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362 return ui_combobox_var(obj, var, getvalue, f, udata);
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363 }
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364
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365 UIWIDGET ui_combobox_nv(UiObject *obj, char *varname, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
140
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366 UiVar *var = uic_create_var(obj->ctx, varname, UI_VAR_LIST);
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367 if(var) {
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368 return ui_combobox_var(obj, var, getvalue, f, udata);
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369 } else {
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370 // TODO: error
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371 }
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372 return NULL;
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373 }
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374
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375 UIWIDGET ui_combobox_var(UiObject *obj, UiVar *var, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
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376 UiModel *model = ui_model_info(obj->ctx, UI_STRING, "", -1);
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377 model->getvalue = getvalue;
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378 UiListModel *listmodel = ui_list_model_new(var, model);
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379
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380 GtkWidget *combobox = ui_create_combobox(obj, listmodel, f, udata);
116
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381 UiContainer *ct = uic_get_current_container(obj);
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382 ct->add(ct, combobox, FALSE);
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383 }
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384
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385 GtkWidget* ui_create_combobox(UiObject *obj, UiListModel *model, ui_callback f, void *udata) {
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386 GtkWidget *combobox = gtk_combo_box_new_with_model(GTK_TREE_MODEL(model));
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387
140
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388 UiListView *uicbox = malloc(sizeof(UiListView));
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389 uicbox->ctx = obj->ctx;
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390 uicbox->widget = combobox;
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391 uicbox->var = model->var;
142
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392 uicbox->model = model->info;
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393
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394 g_signal_connect(
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395 combobox,
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396 "destroy",
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397 G_CALLBACK(ui_listview_destroy),
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398 uicbox);
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399
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400 // bind var
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401 UiList *list = model->var->value;
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402 list->update = ui_combobox_modelupdate;
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403 list->obj = uicbox;
116
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404
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diff changeset
405 GtkCellRenderer *renderer = gtk_cell_renderer_text_new();
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406 gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combobox), renderer, TRUE);
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407 gtk_cell_layout_set_attributes(
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408 GTK_CELL_LAYOUT(combobox),
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409 renderer,
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410 "text",
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411 0,
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412 NULL);
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413 gtk_combo_box_set_active(GTK_COMBO_BOX(combobox), 0);
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414
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415 // add callback
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416 if(f) {
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417 UiEventData *event = ui_malloc(obj->ctx, sizeof(UiEventData));
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418 event->obj = obj;
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419 event->userdata = udata;
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420 event->callback = f;
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421 event->value = 0;
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422
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423 g_signal_connect(
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424 combobox,
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425 "changed",
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426 G_CALLBACK(ui_combobox_change_event),
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427 event);
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428 }
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429
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430 return combobox;
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431 }
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432
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433 void ui_combobox_change_event(GtkComboBox *widget, UiEventData *e) {
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434 UiEvent event;
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435 event.obj = e->obj;
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436 event.window = event.obj->window;
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437 event.document = event.obj->ctx->document;
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438 event.eventdata = NULL;
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439 event.intval = gtk_combo_box_get_active(widget);
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440 e->callback(&event, e->userdata);
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441 }
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442
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443 void ui_combobox_modelupdate(UiList *list, int i) {
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444 UiListView *view = list->obj;
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445 UiListModel *model = ui_list_model_new(view->var, view->model);
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446 gtk_combo_box_set_model(GTK_COMBO_BOX(view->widget), GTK_TREE_MODEL(model));
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447 }
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448

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