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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 2014 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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38 | |
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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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43 | |
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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, UiListPtr *list, ui_model_getvalue_f 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 | gtk_tree_view_set_activate_on_single_click(GTK_TREE_VIEW(view), TRUE); |
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59 | #else |
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60 | |
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61 | #endif |
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62 | |
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63 | UiModelInfo *modelinfo = ui_model_info(obj->ctx, UI_STRING, "", -1); |
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64 | modelinfo->getvalue = getvalue; |
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65 | UiListModel *model = ui_list_model_new(list, modelinfo); |
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66 | gtk_tree_view_set_model(GTK_TREE_VIEW(view), GTK_TREE_MODEL(model)); |
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67 | |
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68 | // add TreeView as observer to the UiList to update the TreeView if the |
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69 | // data changes |
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70 | UiTableView *listview = ucx_mempool_malloc(obj->ctx->mempool, sizeof(UiTableView)); |
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71 | listview->widget = view; |
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72 | listview->list = list; |
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73 | listview->modelinfo = modelinfo; |
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74 | list->list->observers = ui_add_observer( |
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75 | list->list->observers, |
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76 | (ui_callback)ui_listview_update, |
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77 | listview); |
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78 | |
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79 | // add callback |
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80 | if(f) { |
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81 | UiTreeEventData *event = ui_malloc(obj->ctx, sizeof(UiTreeEventData)); |
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82 | event->obj = obj; |
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83 | event->userdata = udata; |
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84 | event->activate = f; |
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85 | event->selection = NULL; |
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86 | |
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87 | g_signal_connect( |
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88 | view, |
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89 | "row-activated", |
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90 | G_CALLBACK(ui_listview_activate_event), |
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91 | event); |
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92 | } |
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93 | |
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94 | // add widget to the current container |
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95 | GtkWidget *scroll_area = gtk_scrolled_window_new(NULL, NULL); |
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96 | gtk_scrolled_window_set_policy( |
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97 | GTK_SCROLLED_WINDOW(scroll_area), |
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98 | GTK_POLICY_AUTOMATIC, |
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99 | GTK_POLICY_AUTOMATIC); // GTK_POLICY_ALWAYS |
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100 | gtk_container_add(GTK_CONTAINER(scroll_area), view); |
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101 | |
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102 | UiContainer *ct = uic_get_current_container(obj); |
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103 | ct->add(ct, scroll_area, TRUE); |
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104 | |
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105 | // ct->current should point to view, not scroll_area, to make it possible |
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106 | // to add a context menu |
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107 | ct->current = view; |
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108 | |
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109 | return scroll_area; |
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110 | } |
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111 | |
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112 | UIWIDGET ui_listview(UiObject *obj, UiList *list, ui_model_getvalue_f getvalue, ui_callback f, void *udata) { |
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113 | UiListPtr *listptr = ucx_mempool_malloc(obj->ctx->mempool, sizeof(UiListPtr)); |
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114 | listptr->list = list; |
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115 | return ui_listview_var(obj, listptr, getvalue, f, udata); |
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116 | } |
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117 | |
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118 | UIWIDGET ui_listview_nv(UiObject *obj, char *varname, ui_model_getvalue_f getvalue, ui_callback f, void *udata) { |
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119 | UiVar *var = uic_connect_var(obj->ctx, varname, UI_VAR_LIST); |
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120 | if(var) { |
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121 | UiListVar *value = var->value; |
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122 | return ui_listview_var(obj, value->listptr, getvalue, f, udata); |
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123 | } else { |
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124 | // TODO: error |
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125 | } |
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126 | return NULL; |
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127 | } |
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128 | |
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129 | |
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130 | UIWIDGET ui_table_var(UiObject *obj, UiListPtr *list, UiModelInfo *modelinfo) { |
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131 | // create treeview |
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132 | GtkWidget *view = gtk_tree_view_new(); |
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133 | for(int i=0;i<modelinfo->columns;i++) { |
41 | 134 | GtkCellRenderer *renderer = gtk_cell_renderer_text_new(); |
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135 | GtkTreeViewColumn *column = gtk_tree_view_column_new_with_attributes( |
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136 | modelinfo->titles[i], |
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137 | renderer, |
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138 | "text", |
41 | 139 | i, |
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140 | NULL); |
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141 | gtk_tree_view_column_set_resizable(column, TRUE); |
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142 | gtk_tree_view_append_column(GTK_TREE_VIEW(view), column); |
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143 | } |
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144 | |
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145 | //gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(view), FALSE); |
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146 | #ifdef UI_GTK3 |
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147 | //gtk_tree_view_set_activate_on_single_click(GTK_TREE_VIEW(view), TRUE); |
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148 | #else |
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149 | |
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150 | #endif |
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151 | |
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152 | UiListModel *model = ui_list_model_new(list, modelinfo); |
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153 | gtk_tree_view_set_model(GTK_TREE_VIEW(view), GTK_TREE_MODEL(model)); |
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154 | |
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155 | // add TreeView as observer to the UiList to update the TreeView if the |
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156 | // data changes |
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157 | UiTableView *tableview = ucx_mempool_malloc(obj->ctx->mempool, sizeof(UiTableView)); |
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158 | tableview->widget = view; |
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159 | tableview->list = list; |
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160 | tableview->modelinfo = modelinfo; |
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161 | list->list->observers = ui_add_observer( |
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162 | list->list->observers, |
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163 | (ui_callback)ui_listview_update, |
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164 | tableview); |
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165 | |
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166 | // add callback |
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167 | UiTreeEventData *event = ui_malloc(obj->ctx, sizeof(UiTreeEventData)); |
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168 | event->obj = obj; |
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169 | event->activate = modelinfo->activate; |
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170 | event->selection = modelinfo->selection; |
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171 | event->userdata = modelinfo->userdata; |
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172 | if(modelinfo->activate) { |
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173 | g_signal_connect( |
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174 | view, |
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175 | "row-activated", |
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176 | G_CALLBACK(ui_listview_activate_event), |
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177 | event); |
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178 | } |
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179 | if(modelinfo->selection) { |
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180 | GtkTreeSelection *selection = gtk_tree_view_get_selection( |
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181 | GTK_TREE_VIEW(view)); |
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182 | g_signal_connect( |
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183 | selection, |
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184 | "changed", |
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185 | G_CALLBACK(ui_listview_selection_event), |
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186 | event); |
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187 | } |
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188 | // TODO: destroy callback |
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189 | |
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190 | GtkTreeSelection *selection = gtk_tree_view_get_selection (GTK_TREE_VIEW(view)); |
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191 | gtk_tree_selection_set_mode(selection, GTK_SELECTION_MULTIPLE); |
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192 | |
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193 | // add widget to the current container |
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194 | GtkWidget *scroll_area = gtk_scrolled_window_new(NULL, NULL); |
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195 | gtk_scrolled_window_set_policy( |
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196 | GTK_SCROLLED_WINDOW(scroll_area), |
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197 | GTK_POLICY_AUTOMATIC, |
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198 | GTK_POLICY_AUTOMATIC); // GTK_POLICY_ALWAYS |
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199 | gtk_container_add(GTK_CONTAINER(scroll_area), view); |
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200 | |
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201 | UiContainer *ct = uic_get_current_container(obj); |
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202 | ct->add(ct, scroll_area, TRUE); |
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203 | |
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204 | // ct->current should point to view, not scroll_area, to make it possible |
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205 | // to add a context menu |
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206 | ct->current = view; |
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207 | |
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208 | return scroll_area; |
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209 | } |
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210 | |
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211 | UIWIDGET ui_table(UiObject *obj, UiList *list, UiModelInfo *modelinfo) { |
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212 | UiListPtr *listptr = ucx_mempool_malloc(obj->ctx->mempool, sizeof(UiListPtr)); |
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213 | listptr->list = list; |
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214 | return ui_table_var(obj, listptr, modelinfo); |
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215 | } |
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216 | |
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217 | UIWIDGET ui_table_nv(UiObject *obj, char *varname, UiModelInfo *modelinfo) { |
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218 | UiVar *var = uic_connect_var(obj->ctx, varname, UI_VAR_LIST); |
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219 | if(var) { |
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220 | UiListVar *value = var->value; |
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221 | return ui_table_var(obj, value->listptr, modelinfo); |
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222 | } else { |
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223 | // TODO: error |
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224 | } |
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225 | return NULL; |
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226 | } |
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227 | |
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228 | |
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229 | |
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230 | void ui_listview_update(UiEvent *event, UiTableView *view) { |
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231 | UiListModel *model = ui_list_model_new(view->list, view->modelinfo); |
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232 | gtk_tree_view_set_model(GTK_TREE_VIEW(view->widget), GTK_TREE_MODEL(model)); |
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233 | |
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234 | // TODO: free old model |
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235 | } |
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236 | |
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237 | void ui_listview_activate_event( |
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238 | GtkTreeView *treeview, |
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239 | GtkTreePath *path, |
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240 | GtkTreeViewColumn *column, |
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241 | UiTreeEventData *event) |
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242 | { |
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243 | UiListSelection *selection = ui_listview_selection( |
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244 | gtk_tree_view_get_selection(treeview), |
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245 | event); |
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246 | |
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247 | UiEvent e; |
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248 | e.obj = event->obj; |
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249 | e.window = event->obj->window; |
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250 | e.document = event->obj->ctx->document; |
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251 | e.eventdata = selection; |
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252 | e.intval = selection->count > 0 ? selection->rows[0] : -1; |
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253 | event->activate(&e, event->userdata); |
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254 | |
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255 | if(selection->count > 0) { |
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256 | free(selection->rows); |
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257 | } |
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258 | free(selection); |
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259 | } |
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260 | |
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261 | void ui_listview_selection_event( |
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262 | GtkTreeSelection *treeselection, |
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263 | UiTreeEventData *event) |
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264 | { |
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265 | UiListSelection *selection = ui_listview_selection(treeselection, event); |
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266 | |
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267 | UiEvent e; |
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268 | e.obj = event->obj; |
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269 | e.window = event->obj->window; |
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270 | e.document = event->obj->ctx->document; |
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271 | e.eventdata = selection; |
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272 | e.intval = selection->count > 0 ? selection->rows[0] : -1; |
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273 | event->selection(&e, event->userdata); |
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274 | |
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275 | if(selection->count > 0) { |
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276 | free(selection->rows); |
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277 | } |
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278 | free(selection); |
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279 | } |
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280 | |
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281 | UiListSelection* ui_listview_selection( |
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282 | GtkTreeSelection *selection, |
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283 | UiTreeEventData *event) |
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284 | { |
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285 | GList *rows = gtk_tree_selection_get_selected_rows(selection, NULL); |
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286 | |
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287 | UiListSelection *ls = malloc(sizeof(UiListSelection)); |
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288 | ls->count = g_list_length(rows); |
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289 | ls->rows = calloc(ls->count, sizeof(int)); |
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290 | GList *r = rows; |
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291 | int i = 0; |
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292 | while(r) { |
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293 | GtkTreePath *path = r->data; |
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294 | ls->rows[i] = ui_tree_path_list_index(path); |
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295 | r = r->next; |
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296 | i++; |
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297 | } |
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298 | return ls; |
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299 | } |
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300 | |
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301 | int ui_tree_path_list_index(GtkTreePath *path) { |
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302 | int depth = gtk_tree_path_get_depth(path); |
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303 | if(depth == 0) { |
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304 | fprintf(stderr, "UiError: treeview selection: depth == 0\n"); |
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305 | return -1; |
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306 | } |
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307 | int *indices = gtk_tree_path_get_indices(path); |
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308 | return indices[depth - 1]; |
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309 | } |