ui/gtk/tree.c

Sat, 27 Jan 2024 17:50:19 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Sat, 27 Jan 2024 17:50:19 +0100
changeset 2
fbdfaacc4182
parent 0
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child 29
3fc287f06305
permissions
-rw-r--r--

update ucx, libidav and add first gui code

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 #include <string.h>
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32 #include <stdarg.h>
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33
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34 #include "../common/context.h"
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35 #include "../common/object.h"
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36 #include "container.h"
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37
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38 #include "tree.h"
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39
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40
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41 void* ui_strmodel_getvalue(void *elm, int column) {
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42 return column == 0 ? elm : NULL;
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43 }
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44
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45
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46 UIWIDGET ui_listview_str(UiObject *obj, UiList *list, ui_callback f, void *udata) {
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47 return ui_listview(obj, list, ui_strmodel_getvalue, f, udata);
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48 }
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49
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50 UIWIDGET ui_listview_var(UiObject *obj, UiVar *var, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
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51 // create treeview
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52 GtkWidget *view = gtk_tree_view_new();
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53 GtkCellRenderer *renderer = gtk_cell_renderer_text_new();
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54 GtkTreeViewColumn *column = gtk_tree_view_column_new_with_attributes(NULL, renderer, "text", 0, NULL);
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55 gtk_tree_view_append_column(GTK_TREE_VIEW(view), column);
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56
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57 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(view), FALSE);
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58 #ifdef UI_GTK3
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59 #if GTK_MINOR_VERSION >= 8
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60 gtk_tree_view_set_activate_on_single_click(GTK_TREE_VIEW(view), TRUE);
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61 #else
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62 // TODO: implement for older gtk3
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63 #endif
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64 #else
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65 // TODO: implement for gtk2
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66 #endif
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67
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68 UiModel *model = ui_model(obj->ctx, UI_STRING, "", -1);
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69 model->getvalue = getvalue;
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70 UiList *list = var->value;
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71 UiListModel *listmodel = ui_list_model_new(obj, var, model);
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72 gtk_tree_view_set_model(GTK_TREE_VIEW(view), GTK_TREE_MODEL(listmodel));
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73
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74 UiListView *listview = malloc(sizeof(UiListView));
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75 listview->obj = obj;
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76 listview->widget = view;
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77 listview->var = var;
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78 listview->model = model;
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79 g_signal_connect(
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80 view,
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81 "destroy",
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82 G_CALLBACK(ui_listview_destroy),
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83 listview);
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84
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85 // bind var
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86 list->update = ui_listview_update;
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87 list->obj = listview;
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88
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89 // add callback
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90 if(f) {
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91 UiTreeEventData *event = ui_malloc(obj->ctx, sizeof(UiTreeEventData));
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92 event->obj = obj;
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93 event->userdata = udata;
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94 event->activate = f;
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95 event->selection = NULL;
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96
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97 g_signal_connect(
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98 view,
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99 "row-activated",
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100 G_CALLBACK(ui_listview_activate_event),
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101 event);
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102 }
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103
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104 // add widget to the current container
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105 GtkWidget *scroll_area = gtk_scrolled_window_new(NULL, NULL);
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106 gtk_scrolled_window_set_policy(
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107 GTK_SCROLLED_WINDOW(scroll_area),
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108 GTK_POLICY_AUTOMATIC,
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109 GTK_POLICY_AUTOMATIC); // GTK_POLICY_ALWAYS
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110 gtk_container_add(GTK_CONTAINER(scroll_area), view);
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111
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112 UiContainer *ct = uic_get_current_container(obj);
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113 ct->add(ct, scroll_area, TRUE);
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114
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115 // ct->current should point to view, not scroll_area, to make it possible
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116 // to add a context menu
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117 ct->current = view;
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118
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119 return scroll_area;
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120 }
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121
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122 UIWIDGET ui_listview(UiObject *obj, UiList *list, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
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123 UiVar *var = malloc(sizeof(UiVar));
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124 var->value = list;
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125 var->type = UI_VAR_SPECIAL;
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126 return ui_listview_var(obj, var, getvalue, f, udata);
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127 }
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128
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129 UIWIDGET ui_listview_nv(UiObject *obj, char *varname, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
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130 UiVar *var = uic_create_var(obj->ctx, varname, UI_VAR_LIST);
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131 if(var) {
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132 return ui_listview_var(obj, var, getvalue, f, udata);
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133 } else {
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134 // TODO: error
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135 }
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136 return NULL;
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137 }
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138
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139 static void drag_begin(GtkWidget *widget, GdkDragContext *context, gpointer udata) {
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140 printf("drag begin\n");
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141
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142 }
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143
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144 static void drag_end(
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145 GtkWidget *widget,
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146 GdkDragContext *context,
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147 guint time,
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148 gpointer udata)
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149 {
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150 printf("drag end\n");
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151
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152 }
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153
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154 static GtkTargetEntry targetentries[] =
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155 {
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156 { "STRING", 0, 0 },
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157 { "text/plain", 0, 1 },
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158 { "text/uri-list", 0, 2 },
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159 };
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160
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161 UIWIDGET ui_table_var(UiObject *obj, UiVar *var, UiModel *model, UiListCallbacks cb) {
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162 // create treeview
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163 GtkWidget *view = gtk_tree_view_new();
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164
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165 int addi = 0;
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166 for(int i=0;i<model->columns;i++) {
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167 GtkTreeViewColumn *column = NULL;
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168 if(model->types[i] == UI_ICON_TEXT) {
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169 column = gtk_tree_view_column_new();
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170 gtk_tree_view_column_set_title(column, model->titles[i]);
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171
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172 GtkCellRenderer *iconrenderer = gtk_cell_renderer_pixbuf_new();
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173 GtkCellRenderer *textrenderer = gtk_cell_renderer_text_new();
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174
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175 gtk_tree_view_column_pack_end(column, textrenderer, TRUE);
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176 gtk_tree_view_column_pack_start(column, iconrenderer, FALSE);
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177
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178
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179 gtk_tree_view_column_add_attribute(column, iconrenderer, "pixbuf", i);
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180 gtk_tree_view_column_add_attribute(column, textrenderer, "text", i+1);
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181
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182 addi++;
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183 } else {
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184 GtkCellRenderer *renderer = gtk_cell_renderer_text_new();
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185 column = gtk_tree_view_column_new_with_attributes(
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186 model->titles[i],
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187 renderer,
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188 "text",
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189 i + addi,
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190 NULL);
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191 }
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192 gtk_tree_view_column_set_resizable(column, TRUE);
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193 gtk_tree_view_append_column(GTK_TREE_VIEW(view), column);
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194 }
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195
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196 //gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(view), FALSE);
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197 #ifdef UI_GTK3
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198 //gtk_tree_view_set_activate_on_single_click(GTK_TREE_VIEW(view), TRUE);
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199 #else
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200
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201 #endif
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202
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203 UiList *list = var->value;
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204 UiListModel *listmodel = ui_list_model_new(obj, var, model);
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205 gtk_tree_view_set_model(GTK_TREE_VIEW(view), GTK_TREE_MODEL(listmodel));
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206
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207 //g_signal_connect(view, "drag-begin", G_CALLBACK(drag_begin), NULL);
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208 //g_signal_connect(view, "drag-end", G_CALLBACK(drag_end), NULL);
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209
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210 // add TreeView as observer to the UiList to update the TreeView if the
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211 // data changes
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212 UiListView *tableview = malloc(sizeof(UiListView));
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213 tableview->obj = obj;
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214 tableview->widget = view;
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215 tableview->var = var;
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216 tableview->model = model;
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217 g_signal_connect(
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218 view,
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219 "destroy",
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220 G_CALLBACK(ui_listview_destroy),
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221 tableview);
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222
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223 // bind var
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224 list->update = ui_listview_update;
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225 list->obj = tableview;
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226
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227 // add callback
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228 UiTreeEventData *event = ui_malloc(obj->ctx, sizeof(UiTreeEventData));
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229 event->obj = obj;
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230 event->activate = cb.activate;
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231 event->selection = cb.selection;
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232 event->userdata = cb.userdata;
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233 if(cb.activate) {
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234 g_signal_connect(
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235 view,
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236 "row-activated",
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237 G_CALLBACK(ui_listview_activate_event),
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238 event);
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239 }
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240 if(cb.selection) {
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241 GtkTreeSelection *selection = gtk_tree_view_get_selection(
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242 GTK_TREE_VIEW(view));
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243 g_signal_connect(
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244 selection,
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245 "changed",
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246 G_CALLBACK(ui_listview_selection_event),
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247 event);
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248 }
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249 // TODO: destroy callback
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250
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251
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252 GtkTreeSelection *selection = gtk_tree_view_get_selection (GTK_TREE_VIEW(view));
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253 gtk_tree_selection_set_mode(selection, GTK_SELECTION_MULTIPLE);
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254
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255 // add widget to the current container
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256 GtkWidget *scroll_area = gtk_scrolled_window_new(NULL, NULL);
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257 gtk_scrolled_window_set_policy(
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258 GTK_SCROLLED_WINDOW(scroll_area),
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259 GTK_POLICY_AUTOMATIC,
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260 GTK_POLICY_AUTOMATIC); // GTK_POLICY_ALWAYS
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261 gtk_container_add(GTK_CONTAINER(scroll_area), view);
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262
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263 UiContainer *ct = uic_get_current_container(obj);
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264 ct->add(ct, scroll_area, TRUE);
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265
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266 // ct->current should point to view, not scroll_area, to make it possible
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267 // to add a context menu
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268 ct->current = view;
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269
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270 return scroll_area;
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271 }
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272
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273 UIWIDGET ui_table(UiObject *obj, UiList *list, UiModel *model, UiListCallbacks cb) {
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274 UiVar *var = malloc(sizeof(UiVar));
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275 var->value = list;
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276 var->type = UI_VAR_SPECIAL;
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277 return ui_table_var(obj, var, model, cb);
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278 }
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279
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280 UIWIDGET ui_table_nv(UiObject *obj, char *varname, UiModel *model, UiListCallbacks cb) {
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281 UiVar *var = uic_create_var(obj->ctx, varname, UI_VAR_LIST);
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282 if(var) {
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283 return ui_table_var(obj, var, model, cb);
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284 } else {
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285 // TODO: error
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286 }
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287 return NULL;
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288 }
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289
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290 GtkWidget* ui_get_tree_widget(UIWIDGET widget) {
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291 GList *c = gtk_container_get_children(GTK_CONTAINER(widget));
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292 if(c) {
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293 return c->data;
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294 }
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295 return NULL;
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296 }
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297
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298 static char** targets2array(char *target0, va_list ap, int *nelm) {
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299 int al = 16;
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300 char **targets = calloc(16, sizeof(char*));
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301 targets[0] = target0;
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302
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303 int i = 1;
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304 char *target;
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305 while((target = va_arg(ap, char*)) != NULL) {
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306 if(i >= al) {
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307 al *= 2;
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308 targets = realloc(targets, al*sizeof(char*));
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309 }
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310 targets[i] = target;
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311 i++;
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312 }
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313
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314 *nelm = i;
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315 return targets;
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316 }
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317
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318 static GtkTargetEntry* targetstr2gtktargets(char **str, int nelm) {
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319 GtkTargetEntry *targets = calloc(nelm, sizeof(GtkTargetEntry));
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320 for(int i=0;i<nelm;i++) {
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321 targets[i].target = str[i];
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322 }
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323 return targets;
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324 }
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325
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326 void ui_table_dragsource(UIWIDGET tablewidget, int actions, char *target0, ...) {
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327 va_list ap;
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328 va_start(ap, target0);
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329 int nelm;
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330 char **targets = targets2array(target0, ap, &nelm);
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331 va_end(ap);
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332 ui_table_dragsource_a(tablewidget, actions, targets, nelm);
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333 free(targets);
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334 }
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335
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336 void ui_table_dragsource_a(UIWIDGET tablewidget, int actions, char **targets, int nelm) {
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337 GtkTargetEntry* t = targetstr2gtktargets(targets, nelm);
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338 gtk_tree_view_enable_model_drag_source(
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339 GTK_TREE_VIEW(ui_get_tree_widget(tablewidget)),
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340 GDK_BUTTON1_MASK,
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341 t,
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342 nelm,
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343 GDK_ACTION_COPY|GDK_ACTION_MOVE|GDK_ACTION_LINK);
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344 free(t);
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345 }
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346
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347 void ui_table_dragdest(UIWIDGET tablewidget, int actions, char *target0, ...) {
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348 va_list ap;
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349 va_start(ap, target0);
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350 int nelm;
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351 char **targets = targets2array(target0, ap, &nelm);
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352 va_end(ap);
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353 ui_table_dragdest_a(tablewidget, actions, targets, nelm);
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354 free(targets);
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parents:
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355 }
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356
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357 void ui_table_dragdest_a(UIWIDGET tablewidget, int actions, char **targets, int nelm) {
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358 GtkTargetEntry* t = targetstr2gtktargets(targets, nelm);
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parents:
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359 gtk_tree_view_enable_model_drag_dest(
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360 GTK_TREE_VIEW(ui_get_tree_widget(tablewidget)),
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361 t,
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362 nelm,
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parents:
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363 GDK_ACTION_COPY|GDK_ACTION_MOVE|GDK_ACTION_LINK);
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364 free(t);
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parents:
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365 }
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366
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parents:
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367 void ui_listview_update(UiList *list, int i) {
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368 UiListView *view = list->obj;
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369 UiListModel *model = ui_list_model_new(view->obj, view->var, view->model);
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parents:
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370 gtk_tree_view_set_model(GTK_TREE_VIEW(view->widget), GTK_TREE_MODEL(model));
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parents:
diff changeset
371 g_object_unref(G_OBJECT(model));
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parents:
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372 // TODO: free old model
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parents:
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373 }
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374
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parents:
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375 void ui_listview_destroy(GtkWidget *w, UiListView *v) {
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parents:
diff changeset
376 gtk_tree_view_set_model(GTK_TREE_VIEW(w), NULL);
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parents:
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377 ui_destroy_boundvar(v->obj->ctx, v->var);
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parents:
diff changeset
378 // TODO: destroy model?
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379 free(v);
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parents:
diff changeset
380 }
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parents:
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381
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parents:
diff changeset
382 void ui_combobox_destroy(GtkWidget *w, UiListView *v) {
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parents:
diff changeset
383 gtk_combo_box_set_model(GTK_COMBO_BOX(w), NULL);
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parents:
diff changeset
384 ui_destroy_boundvar(v->obj->ctx, v->var);
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parents:
diff changeset
385 // TODO: destroy model?
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parents:
diff changeset
386 free(v);
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parents:
diff changeset
387 }
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parents:
diff changeset
388
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parents:
diff changeset
389
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parents:
diff changeset
390 void ui_listview_activate_event(
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parents:
diff changeset
391 GtkTreeView *treeview,
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parents:
diff changeset
392 GtkTreePath *path,
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parents:
diff changeset
393 GtkTreeViewColumn *column,
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parents:
diff changeset
394 UiTreeEventData *event)
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parents:
diff changeset
395 {
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parents:
diff changeset
396 UiListSelection *selection = ui_listview_selection(
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parents:
diff changeset
397 gtk_tree_view_get_selection(treeview),
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parents:
diff changeset
398 event);
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parents:
diff changeset
399
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parents:
diff changeset
400 UiEvent e;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
401 e.obj = event->obj;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
402 e.window = event->obj->window;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
403 e.document = event->obj->ctx->document;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
404 e.eventdata = selection;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
405 e.intval = selection->count > 0 ? selection->rows[0] : -1;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
406 event->activate(&e, event->userdata);
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
407
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
408 if(selection->count > 0) {
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
409 free(selection->rows);
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
410 }
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
411 free(selection);
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
412 }
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
413
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
414 void ui_listview_selection_event(
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
415 GtkTreeSelection *treeselection,
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
416 UiTreeEventData *event)
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
417 {
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
418 UiListSelection *selection = ui_listview_selection(treeselection, event);
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
419
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
420 UiEvent e;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
421 e.obj = event->obj;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
422 e.window = event->obj->window;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
423 e.document = event->obj->ctx->document;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
424 e.eventdata = selection;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
425 e.intval = selection->count > 0 ? selection->rows[0] : -1;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
426 event->selection(&e, event->userdata);
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
427
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
428 if(selection->count > 0) {
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
429 free(selection->rows);
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
430 }
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
431 free(selection);
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
432 }
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
433
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
434 UiListSelection* ui_listview_selection(
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
435 GtkTreeSelection *selection,
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
436 UiTreeEventData *event)
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
437 {
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
438 GList *rows = gtk_tree_selection_get_selected_rows(selection, NULL);
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
439
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
440 UiListSelection *ls = malloc(sizeof(UiListSelection));
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
441 ls->count = g_list_length(rows);
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
442 ls->rows = calloc(ls->count, sizeof(int));
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
443 GList *r = rows;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
444 int i = 0;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
445 while(r) {
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parents:
diff changeset
446 GtkTreePath *path = r->data;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
447 ls->rows[i] = ui_tree_path_list_index(path);
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
448 r = r->next;
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parents:
diff changeset
449 i++;
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parents:
diff changeset
450 }
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parents:
diff changeset
451 return ls;
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parents:
diff changeset
452 }
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parents:
diff changeset
453
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parents:
diff changeset
454 int ui_tree_path_list_index(GtkTreePath *path) {
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
455 int depth = gtk_tree_path_get_depth(path);
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
456 if(depth == 0) {
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parents:
diff changeset
457 fprintf(stderr, "UiError: treeview selection: depth == 0\n");
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parents:
diff changeset
458 return -1;
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parents:
diff changeset
459 }
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
460 int *indices = gtk_tree_path_get_indices(path);
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parents:
diff changeset
461 return indices[depth - 1];
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parents:
diff changeset
462 }
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
463
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
464
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
465 /* --------------------------- ComboBox --------------------------- */
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parents:
diff changeset
466
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
467 UIWIDGET ui_combobox_str(UiObject *obj, UiList *list, ui_callback f, void *udata) {
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
468 return ui_combobox(obj, list, ui_strmodel_getvalue, f, udata);
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
469 }
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
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470
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471 UIWIDGET ui_combobox(UiObject *obj, UiList *list, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
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472 UiVar *var = malloc(sizeof(UiVar));
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473 var->value = list;
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474 var->type = UI_VAR_SPECIAL;
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475 return ui_combobox_var(obj, var, getvalue, f, udata);
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476 }
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477
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478 UIWIDGET ui_combobox_nv(UiObject *obj, char *varname, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
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479 UiVar *var = uic_create_var(obj->ctx, varname, UI_VAR_LIST);
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480 if(var) {
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481 return ui_combobox_var(obj, var, getvalue, f, udata);
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482 } else {
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483 // TODO: error
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484 }
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485 return NULL;
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486 }
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487
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488 UIWIDGET ui_combobox_var(UiObject *obj, UiVar *var, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
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489 UiModel *model = ui_model(obj->ctx, UI_STRING, "", -1);
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490 model->getvalue = getvalue;
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491 UiListModel *listmodel = ui_list_model_new(obj, var, model);
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492
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493 GtkWidget *combobox = ui_create_combobox(obj, listmodel, f, udata);
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494 UiContainer *ct = uic_get_current_container(obj);
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495 ct->add(ct, combobox, FALSE);
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496 return combobox;
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497 }
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498
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499 GtkWidget* ui_create_combobox(UiObject *obj, UiListModel *model, ui_callback f, void *udata) {
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500 GtkWidget *combobox = gtk_combo_box_new_with_model(GTK_TREE_MODEL(model));
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501
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502 UiListView *uicbox = malloc(sizeof(UiListView));
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503 uicbox->obj = obj;
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504 uicbox->widget = combobox;
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505 uicbox->var = model->var;
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506 uicbox->model = model->model;
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507
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508 g_signal_connect(
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509 combobox,
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510 "destroy",
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511 G_CALLBACK(ui_combobox_destroy),
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512 uicbox);
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513
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514 // bind var
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515 UiList *list = model->var->value;
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516 list->update = ui_combobox_modelupdate;
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517 list->obj = uicbox;
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518
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519 GtkCellRenderer *renderer = gtk_cell_renderer_text_new();
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520 gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combobox), renderer, TRUE);
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521 gtk_cell_layout_set_attributes(
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522 GTK_CELL_LAYOUT(combobox),
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523 renderer,
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524 "text",
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525 0,
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526 NULL);
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527 gtk_combo_box_set_active(GTK_COMBO_BOX(combobox), 0);
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528
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529 // add callback
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530 if(f) {
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531 UiEventData *event = ui_malloc(obj->ctx, sizeof(UiEventData));
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532 event->obj = obj;
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533 event->userdata = udata;
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534 event->callback = f;
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535 event->value = 0;
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536
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537 g_signal_connect(
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538 combobox,
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539 "changed",
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540 G_CALLBACK(ui_combobox_change_event),
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541 event);
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542 }
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543
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544 return combobox;
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545 }
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546
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parents:
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547 void ui_combobox_change_event(GtkComboBox *widget, UiEventData *e) {
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548 UiEvent event;
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549 event.obj = e->obj;
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550 event.window = event.obj->window;
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551 event.document = event.obj->ctx->document;
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552 event.eventdata = NULL;
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553 event.intval = gtk_combo_box_get_active(widget);
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554 e->callback(&event, e->userdata);
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555 }
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parents:
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556
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557 void ui_combobox_modelupdate(UiList *list, int i) {
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diff changeset
558 UiListView *view = list->obj;
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parents:
diff changeset
559 UiListModel *model = ui_list_model_new(view->obj, view->var, view->model);
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560 gtk_combo_box_set_model(GTK_COMBO_BOX(view->widget), GTK_TREE_MODEL(model));
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561 }
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parents:
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562

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