Fri, 14 Jun 2024 18:24:31 +0200
implement ui_list_getselection (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 "text.h" |
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34 | #include "container.h" |
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35 | |
32 | 36 | #include <cx/printf.h> |
37 | ||
38 | #include <gdk/gdkkeysyms.h> | |
39 | ||
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40 | |
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41 | #include "../common/types.h" |
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42 | |
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43 | static void selection_handler( |
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44 | GtkTextBuffer *buf, |
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45 | GtkTextIter *location, |
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46 | GtkTextMark *mark, |
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47 | UiTextArea *textview) |
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48 | { |
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49 | const char *mname = gtk_text_mark_get_name(mark); |
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50 | if(mname) { |
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51 | GtkTextIter begin; |
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52 | GtkTextIter end; |
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53 | int sel = gtk_text_buffer_get_selection_bounds (buf, &begin, &end); |
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54 | if(sel != textview->last_selection_state) { |
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55 | if(sel) { |
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56 | ui_set_group(textview->ctx, UI_GROUP_SELECTION); |
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57 | } else { |
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58 | ui_unset_group(textview->ctx, UI_GROUP_SELECTION); |
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59 | } |
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60 | } |
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61 | textview->last_selection_state = sel; |
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62 | } |
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63 | } |
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64 | |
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65 | UIWIDGET ui_textarea_var(UiObject *obj, UiVar *var) { |
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66 | GtkWidget *text_area = gtk_text_view_new(); |
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67 | gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text_area), GTK_WRAP_WORD_CHAR); |
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68 | g_signal_connect( |
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69 | text_area, |
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70 | "realize", |
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71 | G_CALLBACK(ui_textarea_realize_event), |
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72 | NULL); |
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73 | |
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74 | UiTextArea *uitext = malloc(sizeof(UiTextArea)); |
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75 | uitext->ctx = obj->ctx; |
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76 | uitext->var = var; |
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77 | uitext->last_selection_state = 0; |
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78 | |
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79 | g_signal_connect( |
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80 | text_area, |
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81 | "destroy", |
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82 | G_CALLBACK(ui_textarea_destroy), |
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83 | uitext); |
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84 | |
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85 | GtkWidget *scroll_area = gtk_scrolled_window_new (NULL, NULL); |
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86 | gtk_scrolled_window_set_policy( |
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87 | GTK_SCROLLED_WINDOW(scroll_area), |
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88 | GTK_POLICY_AUTOMATIC, |
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89 | GTK_POLICY_AUTOMATIC); // GTK_POLICY_ALWAYS |
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90 | gtk_container_add(GTK_CONTAINER(scroll_area), text_area); |
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91 | |
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92 | // font and padding |
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93 | PangoFontDescription *font; |
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94 | font = pango_font_description_from_string("Monospace"); |
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95 | gtk_widget_modify_font(text_area, font); |
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96 | pango_font_description_free(font); |
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97 | |
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98 | gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text_area), 2); |
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99 | gtk_text_view_set_right_margin(GTK_TEXT_VIEW(text_area), 2); |
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100 | |
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101 | // add |
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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 | // bind value |
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106 | UiText *value = var->value; |
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107 | if(value) { |
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108 | GtkTextBuffer *buf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text_area)); |
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109 | |
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110 | if(value->value.ptr) { |
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111 | gtk_text_buffer_set_text(buf, value->value.ptr, -1); |
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112 | value->value.free(value->value.ptr); |
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113 | } |
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114 | |
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115 | value->get = ui_textarea_get; |
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116 | value->set = ui_textarea_set; |
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117 | value->getsubstr = ui_textarea_getsubstr; |
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118 | value->insert = ui_textarea_insert; |
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119 | value->setposition = ui_textarea_setposition; |
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120 | value->position = ui_textarea_position; |
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121 | value->selection = ui_textarea_selection; |
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122 | value->length = ui_textarea_length; |
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123 | value->remove = ui_textarea_remove; |
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124 | value->value.ptr = NULL; |
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125 | value->value.free = NULL; |
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126 | value->obj = buf; |
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127 | if(!value->undomgr) { |
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128 | value->undomgr = ui_create_undomgr(); |
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129 | } |
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130 | |
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131 | g_signal_connect( |
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132 | buf, |
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133 | "changed", |
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134 | G_CALLBACK(ui_textbuf_changed), |
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135 | uitext); |
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136 | |
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137 | // register undo manager |
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138 | g_signal_connect( |
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139 | buf, |
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140 | "insert-text", |
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141 | G_CALLBACK(ui_textbuf_insert), |
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142 | var); |
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143 | g_signal_connect( |
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144 | buf, |
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145 | "delete-range", |
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146 | G_CALLBACK(ui_textbuf_delete), |
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147 | var); |
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148 | g_signal_connect( |
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149 | buf, |
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150 | "mark-set", |
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151 | G_CALLBACK(selection_handler), |
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152 | uitext); |
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153 | } |
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154 | |
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155 | return scroll_area; |
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156 | } |
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157 | |
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158 | void ui_textarea_destroy(GtkWidget *object, UiTextArea *textarea) { |
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159 | ui_destroy_boundvar(textarea->ctx, textarea->var); |
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160 | free(textarea); |
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161 | } |
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162 | |
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163 | UIWIDGET ui_textarea(UiObject *obj, UiText *value) { |
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164 | UiVar *var = malloc(sizeof(UiVar)); |
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165 | var->value = value; |
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166 | var->type = UI_VAR_SPECIAL; |
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167 | var->from = NULL; |
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168 | var->from_ctx = NULL; |
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169 | return ui_textarea_var(obj, var); |
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170 | } |
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171 | |
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172 | UIWIDGET ui_textarea_nv(UiObject *obj, char *varname) { |
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173 | UiVar *var = uic_create_var(obj->ctx, varname, UI_VAR_TEXT); |
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174 | if(var) { |
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175 | return ui_textarea_var(obj, var); |
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176 | } else { |
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177 | // TODO: error |
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178 | } |
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179 | return NULL; |
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180 | } |
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181 | |
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182 | UIWIDGET ui_textarea_gettextwidget(UIWIDGET textarea) { |
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183 | return gtk_bin_get_child(GTK_BIN(textarea)); |
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184 | } |
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185 | |
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186 | char* ui_textarea_get(UiText *text) { |
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187 | if(text->value.ptr) { |
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188 | text->value.free(text->value.ptr); |
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189 | } |
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190 | GtkTextBuffer *buf = text->obj; |
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191 | GtkTextIter start; |
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192 | GtkTextIter end; |
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193 | gtk_text_buffer_get_bounds(buf, &start, &end); |
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194 | char *str = gtk_text_buffer_get_text(buf, &start, &end, FALSE); |
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195 | text->value.ptr = g_strdup(str); |
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196 | text->value.free = (ui_freefunc)g_free; |
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197 | return str; |
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198 | } |
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199 | |
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200 | void ui_textarea_set(UiText *text, const char *str) { |
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201 | gtk_text_buffer_set_text((GtkTextBuffer*)text->obj, str, -1); |
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202 | if(text->value.ptr) { |
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203 | text->value.free(text->value.ptr); |
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204 | } |
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205 | text->value.ptr = NULL; |
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206 | text->value.free = NULL; |
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207 | } |
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208 | |
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209 | char* ui_textarea_getsubstr(UiText *text, int begin, int end) { |
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210 | if(text->value.ptr) { |
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211 | text->value.free(text->value.ptr); |
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212 | } |
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213 | GtkTextBuffer *buf = text->obj; |
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214 | GtkTextIter ib; |
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215 | GtkTextIter ie; |
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216 | gtk_text_buffer_get_iter_at_offset(text->obj, &ib, begin); |
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217 | gtk_text_buffer_get_iter_at_offset(text->obj, &ie, end); |
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218 | char *str = gtk_text_buffer_get_text(buf, &ib, &ie, FALSE); |
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219 | text->value.ptr = g_strdup(str); |
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220 | text->value.free = (ui_freefunc)g_free; |
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221 | return str; |
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222 | } |
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223 | |
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224 | void ui_textarea_insert(UiText *text, int pos, char *str) { |
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225 | GtkTextIter offset; |
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226 | gtk_text_buffer_get_iter_at_offset(text->obj, &offset, pos); |
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227 | gtk_text_buffer_insert(text->obj, &offset, str, -1); |
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228 | if(text->value.ptr) { |
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229 | text->value.free(text->value.ptr); |
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230 | } |
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231 | text->value.ptr = NULL; |
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232 | text->value.free = NULL; |
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233 | } |
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234 | |
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235 | void ui_textarea_setposition(UiText *text, int pos) { |
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236 | GtkTextIter iter; |
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237 | gtk_text_buffer_get_iter_at_offset(text->obj, &iter, pos); |
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238 | gtk_text_buffer_place_cursor(text->obj, &iter); |
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239 | } |
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240 | |
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241 | int ui_textarea_position(UiText *text) { |
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242 | GtkTextIter begin; |
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243 | GtkTextIter end; |
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244 | gtk_text_buffer_get_selection_bounds(text->obj, &begin, &end); |
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245 | text->pos = gtk_text_iter_get_offset(&begin); |
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246 | return text->pos; |
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247 | } |
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248 | |
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249 | void ui_textarea_selection(UiText *text, int *begin, int *end) { |
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250 | GtkTextIter b; |
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251 | GtkTextIter e; |
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252 | gtk_text_buffer_get_selection_bounds(text->obj, &b, &e); |
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253 | *begin = gtk_text_iter_get_offset(&b); |
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254 | *end = gtk_text_iter_get_offset(&e); |
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255 | } |
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256 | |
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257 | int ui_textarea_length(UiText *text) { |
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258 | GtkTextBuffer *buf = text->obj; |
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259 | GtkTextIter start; |
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260 | GtkTextIter end; |
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261 | gtk_text_buffer_get_bounds(buf, &start, &end); |
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262 | return gtk_text_iter_get_offset(&end); |
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263 | } |
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264 | |
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265 | void ui_textarea_remove(UiText *text, int begin, int end) { |
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266 | GtkTextBuffer *buf = text->obj; |
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267 | GtkTextIter ib; |
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268 | GtkTextIter ie; |
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269 | gtk_text_buffer_get_iter_at_offset(buf, &ib, begin); |
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270 | gtk_text_buffer_get_iter_at_offset(buf, &ie, end); |
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271 | gtk_text_buffer_delete(buf, &ib, &ie); |
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272 | } |
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273 | |
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274 | void ui_textarea_realize_event(GtkWidget *widget, gpointer data) { |
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275 | gtk_widget_grab_focus(widget); |
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276 | } |
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277 | |
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278 | |
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279 | |
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280 | void ui_textbuf_changed(GtkTextBuffer *textbuffer, UiTextArea *textarea) { |
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281 | UiText *value = textarea->var->value; |
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282 | if(value->observers) { |
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283 | UiEvent e; |
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284 | e.obj = textarea->ctx->obj; |
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285 | e.window = e.obj->window; |
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286 | e.document = textarea->ctx->document; |
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287 | e.eventdata = value; |
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288 | e.intval = 0; |
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289 | ui_notify_evt(value->observers, &e); |
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290 | } |
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291 | } |
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292 | |
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293 | // undo manager functions |
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294 | |
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295 | void ui_textbuf_insert( |
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296 | GtkTextBuffer *textbuffer, |
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297 | GtkTextIter *location, |
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298 | char *text, |
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299 | int length, |
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300 | void *data) |
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301 | { |
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302 | UiVar *var = data; |
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303 | UiText *value = var->value; |
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304 | if(!value->undomgr) { |
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305 | value->undomgr = ui_create_undomgr(); |
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306 | } |
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307 | UiUndoMgr *mgr = value->undomgr; |
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308 | if(!mgr->event) { |
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309 | return; |
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310 | } |
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311 | |
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312 | if(mgr->cur) { |
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313 | UiTextBufOp *elm = mgr->cur->next; |
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314 | if(elm) { |
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315 | mgr->cur->next = NULL; |
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316 | mgr->end = mgr->cur; |
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317 | while(elm) { |
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318 | elm->prev = NULL; |
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319 | UiTextBufOp *next = elm->next; |
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320 | ui_free_textbuf_op(elm); |
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321 | elm = next; |
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322 | } |
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323 | } |
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324 | |
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325 | UiTextBufOp *last_op = mgr->cur; |
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326 | if( |
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327 | last_op->type == UI_TEXTBUF_INSERT && |
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328 | ui_check_insertstr(last_op->text, last_op->len, text, length) == 0) |
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329 | { |
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330 | // append text to last op |
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331 | int ln = last_op->len; |
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332 | char *newtext = malloc(ln + length + 1); |
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333 | memcpy(newtext, last_op->text, ln); |
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334 | memcpy(newtext+ln, text, length); |
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335 | newtext[ln+length] = '\0'; |
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336 | |
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337 | last_op->text = newtext; |
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338 | last_op->len = ln + length; |
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339 | last_op->end += length; |
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340 | |
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341 | return; |
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342 | } |
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343 | } |
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344 | |
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345 | char *dpstr = malloc(length + 1); |
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346 | memcpy(dpstr, text, length); |
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347 | dpstr[length] = 0; |
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348 | |
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349 | UiTextBufOp *op = malloc(sizeof(UiTextBufOp)); |
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350 | op->prev = NULL; |
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351 | op->next = NULL; |
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352 | op->type = UI_TEXTBUF_INSERT; |
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353 | op->start = gtk_text_iter_get_offset(location); |
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354 | op->end = op->start+length; |
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355 | op->len = length; |
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356 | op->text = dpstr; |
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357 | |
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358 | cx_linked_list_add( |
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359 | (void**)&mgr->begin, |
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360 | (void**)&mgr->end, |
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361 | offsetof(UiTextBufOp, prev), |
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362 | offsetof(UiTextBufOp, next), |
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363 | op); |
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364 | |
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365 | mgr->cur = op; |
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366 | } |
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367 | |
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368 | void ui_textbuf_delete( |
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369 | GtkTextBuffer *textbuffer, |
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370 | GtkTextIter *start, |
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371 | GtkTextIter *end, |
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372 | void *data) |
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373 | { |
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374 | UiVar *var = data; |
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375 | UiText *value = var->value; |
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376 | if(!value->undomgr) { |
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377 | value->undomgr = ui_create_undomgr(); |
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378 | } |
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379 | UiUndoMgr *mgr = value->undomgr; |
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380 | if(!mgr->event) { |
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381 | return; |
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382 | } |
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383 | |
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384 | if(mgr->cur) { |
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385 | UiTextBufOp *elm = mgr->cur->next; |
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386 | if(elm) { |
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387 | mgr->cur->next = NULL; |
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388 | mgr->end = mgr->cur; |
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389 | while(elm) { |
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390 | elm->prev = NULL; |
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391 | UiTextBufOp *next = elm->next; |
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392 | ui_free_textbuf_op(elm); |
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393 | elm = next; |
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394 | } |
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395 | } |
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396 | } |
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397 | |
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398 | char *text = gtk_text_buffer_get_text(value->obj, start, end, FALSE); |
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399 | |
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400 | UiTextBufOp *op = malloc(sizeof(UiTextBufOp)); |
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401 | op->prev = NULL; |
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402 | op->next = NULL; |
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403 | op->type = UI_TEXTBUF_DELETE; |
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404 | op->start = gtk_text_iter_get_offset(start); |
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405 | op->end = gtk_text_iter_get_offset(end); |
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406 | op->len = op->end - op->start; |
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407 | |
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408 | char *dpstr = malloc(op->len + 1); |
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409 | memcpy(dpstr, text, op->len); |
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410 | dpstr[op->len] = 0; |
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411 | op->text = dpstr; |
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412 | |
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413 | cx_linked_list_add( |
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414 | (void**)&mgr->begin, |
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415 | (void**)&mgr->end, |
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416 | offsetof(UiTextBufOp, prev), |
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417 | offsetof(UiTextBufOp, next), |
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418 | op); |
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419 | |
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420 | mgr->cur = op; |
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421 | } |
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422 | |
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423 | UiUndoMgr* ui_create_undomgr() { |
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424 | UiUndoMgr *mgr = malloc(sizeof(UiUndoMgr)); |
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425 | mgr->begin = NULL; |
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426 | mgr->end = NULL; |
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427 | mgr->cur = NULL; |
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428 | mgr->length = 0; |
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429 | mgr->event = 1; |
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430 | return mgr; |
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431 | } |
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432 | |
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433 | void ui_destroy_undomgr(UiUndoMgr *mgr) { |
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434 | UiTextBufOp *op = mgr->begin; |
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435 | while(op) { |
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436 | UiTextBufOp *nextOp = op->next; |
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437 | if(op->text) { |
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438 | free(op->text); |
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439 | } |
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440 | free(op); |
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441 | op = nextOp; |
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442 | } |
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443 | free(mgr); |
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444 | } |
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445 | |
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446 | void ui_free_textbuf_op(UiTextBufOp *op) { |
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447 | if(op->text) { |
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448 | free(op->text); |
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449 | } |
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450 | free(op); |
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451 | } |
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452 | |
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453 | int ui_check_insertstr(char *oldstr, int oldlen, char *newstr, int newlen) { |
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454 | // return 1 if oldstr + newstr are one word |
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455 | |
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456 | int has_space = 0; |
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457 | for(int i=0;i<oldlen;i++) { |
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458 | if(oldstr[i] < 33) { |
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459 | has_space = 1; |
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460 | break; |
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461 | } |
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462 | } |
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463 | |
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464 | for(int i=0;i<newlen;i++) { |
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465 | if(has_space && newstr[i] > 32) { |
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466 | return 1; |
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467 | } |
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468 | } |
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469 | |
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470 | return 0; |
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471 | } |
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472 | |
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473 | void ui_text_undo(UiText *value) { |
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474 | UiUndoMgr *mgr = value->undomgr; |
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475 | |
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476 | if(mgr->cur) { |
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477 | UiTextBufOp *op = mgr->cur; |
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478 | mgr->event = 0; |
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479 | switch(op->type) { |
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480 | case UI_TEXTBUF_INSERT: { |
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481 | GtkTextIter begin; |
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482 | GtkTextIter end; |
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483 | gtk_text_buffer_get_iter_at_offset(value->obj, &begin, op->start); |
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484 | gtk_text_buffer_get_iter_at_offset(value->obj, &end, op->end); |
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485 | gtk_text_buffer_delete(value->obj, &begin, &end); |
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486 | break; |
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487 | } |
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488 | case UI_TEXTBUF_DELETE: { |
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489 | GtkTextIter begin; |
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490 | GtkTextIter end; |
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491 | gtk_text_buffer_get_iter_at_offset(value->obj, &begin, op->start); |
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492 | gtk_text_buffer_get_iter_at_offset(value->obj, &end, op->end); |
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493 | gtk_text_buffer_insert(value->obj, &begin, op->text, op->len); |
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494 | break; |
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495 | } |
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496 | } |
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497 | mgr->event = 1; |
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498 | mgr->cur = mgr->cur->prev; |
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499 | } |
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500 | } |
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501 | |
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502 | void ui_text_redo(UiText *value) { |
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503 | UiUndoMgr *mgr = value->undomgr; |
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504 | |
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505 | UiTextBufOp *elm = NULL; |
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506 | if(mgr->cur) { |
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507 | if(mgr->cur->next) { |
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508 | elm = mgr->cur->next; |
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509 | } |
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510 | } else if(mgr->begin) { |
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511 | elm = mgr->begin; |
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512 | } |
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513 | |
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514 | if(elm) { |
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515 | UiTextBufOp *op = elm; |
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516 | mgr->event = 0; |
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517 | switch(op->type) { |
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518 | case UI_TEXTBUF_INSERT: { |
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519 | GtkTextIter begin; |
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520 | GtkTextIter end; |
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521 | gtk_text_buffer_get_iter_at_offset(value->obj, &begin, op->start); |
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522 | gtk_text_buffer_get_iter_at_offset(value->obj, &end, op->end); |
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523 | gtk_text_buffer_insert(value->obj, &begin, op->text, op->len); |
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524 | break; |
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525 | } |
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526 | case UI_TEXTBUF_DELETE: { |
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527 | GtkTextIter begin; |
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528 | GtkTextIter end; |
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529 | gtk_text_buffer_get_iter_at_offset(value->obj, &begin, op->start); |
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530 | gtk_text_buffer_get_iter_at_offset(value->obj, &end, op->end); |
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531 | gtk_text_buffer_delete(value->obj, &begin, &end); |
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532 | break; |
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533 | } |
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534 | } |
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535 | mgr->event = 1; |
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536 | mgr->cur = elm; |
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537 | } |
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538 | } |
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539 | |
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540 | |
32 | 541 | |
542 | ||
543 | static UIWIDGET create_textfield(UiObject *obj, UiBool frameless, UiBool password, UiTextFieldArgs args) { | |
0
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544 | GtkWidget *textfield = gtk_entry_new(); |
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545 | |
32 | 546 | UiObject* current = uic_current_obj(obj); |
547 | UiVar* var = uic_widget_var(obj->ctx, current->ctx, args.value, args.varname, UI_VAR_STRING); | |
548 | ||
0
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549 | UiTextField *uitext = malloc(sizeof(UiTextField)); |
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550 | uitext->ctx = obj->ctx; |
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551 | uitext->var = var; |
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552 | |
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553 | g_signal_connect( |
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554 | textfield, |
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555 | "destroy", |
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556 | G_CALLBACK(ui_textfield_destroy), |
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557 | uitext); |
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558 | |
32 | 559 | if(args.width > 0) { |
560 | gtk_entry_set_width_chars(GTK_ENTRY(textfield), args.width); | |
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561 | } |
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562 | if(frameless) { |
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563 | // TODO: gtk2legacy workaroud |
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564 | gtk_entry_set_has_frame(GTK_ENTRY(textfield), FALSE); |
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565 | } |
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566 | if(password) { |
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567 | gtk_entry_set_visibility(GTK_ENTRY(textfield), FALSE); |
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568 | } |
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569 | |
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570 | UiContainer *ct = uic_get_current_container(obj); |
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571 | ct->add(ct, textfield, FALSE); |
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572 | |
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573 | if(var) { |
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574 | UiString *value = var->value; |
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575 | if(value->value.ptr) { |
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576 | gtk_entry_set_text(GTK_ENTRY(textfield), value->value.ptr); |
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577 | value->value.free(value->value.ptr); |
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578 | value->value.ptr = NULL; |
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579 | value->value.free = NULL; |
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580 | } |
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581 | |
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582 | value->get = ui_textfield_get; |
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583 | value->set = ui_textfield_set; |
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584 | value->value.ptr = NULL; |
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585 | value->value.free = NULL; |
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586 | value->obj = GTK_ENTRY(textfield); |
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587 | |
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588 | g_signal_connect( |
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589 | textfield, |
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590 | "changed", |
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591 | G_CALLBACK(ui_textfield_changed), |
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592 | uitext); |
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593 | } |
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594 | |
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595 | return textfield; |
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596 | } |
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597 | |
32 | 598 | UIWIDGET ui_textfield_create(UiObject *obj, UiTextFieldArgs args) { |
599 | return create_textfield(obj, FALSE, FALSE, args); | |
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600 | } |
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601 | |
32 | 602 | UIWIDGET ui_frameless_textfield_create(UiObject* obj, UiTextFieldArgs args) { |
603 | return create_textfield(obj, TRUE, FALSE, args); | |
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604 | } |
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605 | |
32 | 606 | UIWIDGET ui_passwordfield_create(UiObject* obj, UiTextFieldArgs args) { |
607 | return create_textfield(obj, FALSE, TRUE, args); | |
608 | } | |
609 | ||
610 | ||
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611 | void ui_textfield_destroy(GtkWidget *object, UiTextField *textfield) { |
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612 | free(textfield); |
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613 | } |
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614 | |
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615 | void ui_textfield_changed(GtkEditable *editable, UiTextField *textfield) { |
32 | 616 | // changed event is only registered, if the textfield->var != NULL |
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617 | UiString *value = textfield->var->value; |
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618 | if(value->observers) { |
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619 | UiEvent e; |
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620 | e.obj = textfield->ctx->obj; |
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621 | e.window = e.obj->window; |
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622 | e.document = textfield->ctx->document; |
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623 | e.eventdata = value; |
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624 | e.intval = 0; |
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625 | ui_notify_evt(value->observers, &e); |
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626 | } |
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627 | } |
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628 | |
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629 | |
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630 | char* ui_textfield_get(UiString *str) { |
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631 | if(str->value.ptr) { |
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632 | str->value.free(str->value.ptr); |
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633 | } |
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634 | str->value.ptr = g_strdup(gtk_entry_get_text(str->obj)); |
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635 | str->value.free = (ui_freefunc)g_free; |
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636 | return str->value.ptr; |
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637 | } |
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638 | |
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639 | void ui_textfield_set(UiString *str, const char *value) { |
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640 | gtk_entry_set_text(str->obj, value); |
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641 | if(str->value.ptr) { |
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642 | str->value.free(str->value.ptr); |
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643 | str->value.ptr = NULL; |
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644 | str->value.free = NULL; |
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645 | } |
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646 | } |
32 | 647 | |
648 | // ----------------------- path textfield ----------------------- | |
649 | ||
650 | // TODO: move to common | |
651 | static UiPathElm* default_pathelm_func(const char* full_path, size_t len, size_t* ret_nelm, void* data) { | |
652 | cxstring *pathelms; | |
653 | size_t nelm = cx_strsplit_a(cxDefaultAllocator, cx_strn(full_path, len), CX_STR("/"), 4096, &pathelms); | |
654 | ||
655 | if (nelm == 0) { | |
656 | *ret_nelm = 0; | |
657 | return NULL; | |
658 | } | |
659 | ||
660 | UiPathElm* elms = (UiPathElm*)calloc(nelm, sizeof(UiPathElm)); | |
661 | size_t n = nelm; | |
662 | int j = 0; | |
663 | for (int i = 0; i < nelm; i++) { | |
664 | cxstring c = pathelms[i]; | |
665 | if (c.length == 0) { | |
666 | if (i == 0) { | |
667 | c.length = 1; | |
668 | } | |
669 | else { | |
670 | n--; | |
671 | continue; | |
672 | } | |
673 | } | |
674 | ||
675 | cxmutstr m = cx_strdup(c); | |
676 | elms[j].name = m.ptr; | |
677 | elms[j].name_len = m.length; | |
678 | ||
679 | size_t elm_path_len = c.ptr + c.length - full_path; | |
680 | cxmutstr elm_path = cx_strdup(cx_strn(full_path, elm_path_len)); | |
681 | elms[j].path = elm_path.ptr; | |
682 | elms[j].path_len = elm_path.length; | |
683 | ||
684 | j++; | |
685 | } | |
686 | *ret_nelm = n; | |
687 | ||
688 | return elms; | |
689 | } | |
690 | ||
691 | static gboolean path_textfield_btn_pressed(GtkWidget *widget, GdkEventButton *event, UiPathTextField *pathtf) { | |
692 | gtk_box_pack_start(GTK_BOX(pathtf->hbox), pathtf->entry, TRUE, TRUE, 0); | |
693 | gtk_container_remove(GTK_CONTAINER(pathtf->hbox), pathtf->buttonbox); | |
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694 | pathtf->buttonbox = NULL; |
32 | 695 | |
696 | gtk_widget_show(pathtf->entry); | |
697 | gtk_widget_grab_focus(pathtf->entry); | |
698 | ||
699 | return TRUE; | |
700 | } | |
701 | ||
702 | static void ui_pathelm_destroy(UiPathElm *elms, size_t nelm) { | |
703 | for(int i=0;i<nelm;i++) { | |
704 | free(elms[i].name); | |
705 | free(elms[i].path); | |
706 | } | |
707 | free(elms); | |
708 | } | |
709 | ||
710 | static void ui_path_textfield_destroy(GtkWidget *object, UiPathTextField *pathtf) { | |
711 | free(pathtf->current_path); | |
712 | g_object_unref(pathtf->entry); | |
713 | free(pathtf); | |
714 | } | |
715 | ||
716 | static void ui_path_textfield_activate(GtkWidget *entry, UiPathTextField *pathtf) { | |
717 | const gchar *text = gtk_entry_get_text(GTK_ENTRY(pathtf->entry)); | |
718 | if(strlen(text) == 0) { | |
719 | return; | |
720 | } | |
721 | ||
722 | UiObject *obj = pathtf->obj; | |
723 | ||
724 | if(ui_pathtextfield_update(pathtf, text)) { | |
725 | return; | |
726 | } | |
727 | ||
728 | if(pathtf->onactivate) { | |
729 | UiEvent evt; | |
730 | evt.obj = obj; | |
731 | evt.window = obj->window; | |
732 | evt.document = obj->ctx->document; | |
733 | evt.eventdata = (char*)text; | |
734 | evt.intval = -1; | |
735 | pathtf->onactivate(&evt, pathtf->onactivatedata); | |
736 | } | |
737 | } | |
738 | ||
739 | static gboolean ui_path_textfield_key_press(GtkWidget *self, GdkEventKey *event, UiPathTextField *pathtf) { | |
740 | if (event->keyval == GDK_KEY_Escape) { | |
741 | // reset GtkEntry value | |
742 | gtk_entry_set_text(GTK_ENTRY(self), pathtf->current_path); | |
743 | const gchar *text = gtk_entry_get_text(GTK_ENTRY(self)); | |
744 | ui_pathtextfield_update(pathtf, text); | |
745 | return TRUE; | |
746 | } | |
747 | return FALSE; | |
748 | } | |
749 | ||
750 | static GtkWidget* create_path_button_box() { | |
751 | GtkWidget *bb = gtk_button_box_new(GTK_ORIENTATION_HORIZONTAL); | |
752 | gtk_button_box_set_layout(GTK_BUTTON_BOX(bb), GTK_BUTTONBOX_EXPAND); // linked style | |
753 | gtk_box_set_homogeneous(GTK_BOX(bb), FALSE); | |
754 | gtk_box_set_spacing(GTK_BOX(bb), 0); | |
755 | return bb; | |
756 | } | |
757 | ||
758 | UIWIDGET ui_path_textfield_create(UiObject* obj, UiPathTextFieldArgs args) { | |
759 | UiObject* current = uic_current_obj(obj); | |
760 | ||
761 | UiPathTextField *pathtf = malloc(sizeof(UiPathTextField)); | |
762 | memset(pathtf, 0, sizeof(UiPathTextField)); | |
763 | pathtf->obj = obj; | |
764 | pathtf->getpathelm = args.getpathelm; | |
765 | pathtf->getpathelmdata = args.getpathelmdata; | |
766 | pathtf->onactivate = args.onactivate; | |
767 | pathtf->onactivatedata = args.onactivatedata; | |
768 | pathtf->ondragcomplete = args.ondragcomplete; | |
769 | pathtf->ondragcompletedata = args.ondragcompletedata; | |
770 | pathtf->ondragstart = args.ondragstart; | |
771 | pathtf->ondragstartdata = args.ondragstartdata; | |
772 | pathtf->ondrop = args.ondrop; | |
773 | pathtf->ondropdata = args.ondropsdata; | |
774 | ||
775 | if(!pathtf->getpathelm) { | |
776 | pathtf->getpathelm = default_pathelm_func; | |
777 | pathtf->getpathelmdata = NULL; | |
778 | } | |
779 | ||
780 | // top level container for the path textfield is a GtkEventBox | |
781 | // the event box is needed to handle background button presses | |
782 | GtkWidget *eventbox = gtk_event_box_new(); | |
783 | g_signal_connect( | |
784 | eventbox, | |
785 | "button-press-event", | |
786 | G_CALLBACK(path_textfield_btn_pressed), | |
787 | pathtf); | |
788 | g_signal_connect( | |
789 | eventbox, | |
790 | "destroy", | |
791 | G_CALLBACK(ui_path_textfield_destroy), | |
792 | pathtf); | |
793 | ||
794 | UI_APPLY_LAYOUT1(current, args); | |
795 | current->container->add(current->container, eventbox, FALSE); | |
796 | ||
797 | // hbox as parent for the GtkEntry and GtkButtonBox | |
798 | GtkWidget *hbox = ui_gtk_hbox_new(0); | |
799 | pathtf->hbox = hbox; | |
800 | gtk_container_add(GTK_CONTAINER(eventbox), hbox); | |
801 | gtk_widget_set_name(hbox, "path-textfield-box"); | |
802 | ||
803 | // create GtkEntry, that is also visible by default (with input yet) | |
804 | pathtf->entry = gtk_entry_new(); | |
805 | g_object_ref(G_OBJECT(pathtf->entry)); | |
806 | gtk_box_pack_start(GTK_BOX(hbox), pathtf->entry, TRUE, TRUE, 0); | |
807 | ||
808 | g_signal_connect( | |
809 | pathtf->entry, | |
810 | "activate", | |
811 | G_CALLBACK(ui_path_textfield_activate), | |
812 | pathtf); | |
813 | g_signal_connect( | |
814 | pathtf->entry, | |
815 | "key-press-event", | |
816 | G_CALLBACK(ui_path_textfield_key_press), | |
817 | pathtf); | |
818 | ||
819 | UiVar* var = uic_widget_var(obj->ctx, current->ctx, args.value, args.varname, UI_VAR_STRING); | |
820 | if (var) { | |
821 | UiString* value = (UiString*)var->value; | |
822 | value->obj = pathtf; | |
823 | value->get = ui_path_textfield_get; | |
824 | value->set = ui_path_textfield_set; | |
825 | ||
826 | if(value->value.ptr) { | |
827 | char *str = strdup(value->value.ptr); | |
828 | ui_string_set(value, str); | |
829 | free(str); | |
830 | } | |
831 | } | |
832 | ||
833 | return hbox; | |
834 | } | |
835 | ||
836 | void ui_path_button_clicked(GtkWidget *widget, UiEventData *event) { | |
837 | UiPathElm *elm = event->customdata; | |
838 | cxmutstr path = cx_strdup(cx_strn(elm->path, elm->path_len)); | |
839 | UiEvent evt; | |
840 | evt.obj = event->obj; | |
841 | evt.window = evt.obj->window; | |
842 | evt.document = evt.obj->ctx->document; | |
843 | evt.eventdata = elm->path; | |
844 | evt.intval = event->value; | |
845 | event->callback(&evt, event->userdata); | |
846 | free(path.ptr); | |
847 | } | |
848 | ||
849 | int ui_pathtextfield_update(UiPathTextField* pathtf, const char *full_path) { | |
850 | size_t full_path_len = strlen(full_path); | |
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851 | if(full_path_len == 0) { |
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852 | return 1; |
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853 | } |
32 | 854 | |
855 | size_t nelm = 0; | |
856 | UiPathElm* path_elm = pathtf->getpathelm(full_path, full_path_len, &nelm, pathtf->getpathelmdata); | |
857 | if (!path_elm) { | |
858 | return 1; | |
859 | } | |
860 | ||
861 | free(pathtf->current_path); | |
862 | pathtf->current_path = strdup(full_path); | |
863 | ||
864 | ui_pathelm_destroy(pathtf->current_pathelms, pathtf->current_nelm); | |
865 | pathtf->current_pathelms = path_elm; | |
866 | pathtf->current_nelm = nelm; | |
867 | ||
868 | GtkWidget *buttonbox = create_path_button_box(); | |
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869 | |
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870 | // switch from entry to buttonbox or remove current buttonbox |
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871 | if(pathtf->buttonbox) { |
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872 | gtk_container_remove(GTK_CONTAINER(pathtf->hbox), pathtf->buttonbox); |
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873 | } else { |
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874 | gtk_container_remove(GTK_CONTAINER(pathtf->hbox), pathtf->entry); |
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875 | } |
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876 | gtk_box_pack_start(GTK_BOX(pathtf->hbox), buttonbox, FALSE, FALSE, 0); |
32 | 877 | pathtf->buttonbox = buttonbox; |
878 | ||
879 | for (int i=0;i<nelm;i++) { | |
880 | UiPathElm *elm = &path_elm[i]; | |
881 | ||
882 | cxmutstr name = cx_strdup(cx_strn(elm->name, elm->name_len)); | |
883 | GtkWidget *button = gtk_button_new_with_label(name.ptr); | |
884 | free(name.ptr); | |
885 | ||
886 | if(pathtf->onactivate) { | |
887 | UiEventData *eventdata = malloc(sizeof(UiEventData)); | |
888 | eventdata->callback = pathtf->onactivate; | |
889 | eventdata->userdata = pathtf->onactivatedata; | |
890 | eventdata->obj = pathtf->obj; | |
891 | eventdata->customdata = elm; | |
892 | eventdata->value = i; | |
893 | ||
894 | g_signal_connect( | |
895 | button, | |
896 | "clicked", | |
897 | G_CALLBACK(ui_path_button_clicked), | |
898 | eventdata); | |
899 | ||
900 | g_signal_connect( | |
901 | button, | |
902 | "destroy", | |
903 | G_CALLBACK(ui_destroy_userdata), | |
904 | eventdata); | |
905 | } | |
906 | ||
907 | gtk_box_pack_start(GTK_BOX(buttonbox), button, FALSE, FALSE, 0); | |
908 | } | |
909 | ||
910 | gtk_widget_show_all(buttonbox); | |
911 | ||
912 | return 0; | |
913 | } | |
914 | ||
915 | char* ui_path_textfield_get(UiString *str) { | |
916 | if(str->value.ptr) { | |
917 | str->value.free(str->value.ptr); | |
918 | } | |
919 | UiPathTextField *tf = str->obj; | |
920 | str->value.ptr = g_strdup(gtk_entry_get_text(GTK_ENTRY(tf->entry))); | |
921 | str->value.free = (ui_freefunc)g_free; | |
922 | return str->value.ptr; | |
923 | } | |
924 | ||
925 | void ui_path_textfield_set(UiString *str, const char *value) { | |
926 | UiPathTextField *tf = str->obj; | |
927 | gtk_entry_set_text(GTK_ENTRY(tf->entry), value); | |
928 | ui_pathtextfield_update(tf, value); | |
929 | if(str->value.ptr) { | |
930 | str->value.free(str->value.ptr); | |
931 | str->value.ptr = NULL; | |
932 | str->value.free = NULL; | |
933 | } | |
934 | } |