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added groups for toolbar items and copy & paste (GTK, Motif)
5 | 1 | /* |
2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | |
3 | * | |
4 | * Copyright 2014 Olaf Wintermann. All rights reserved. | |
5 | * | |
6 | * Redistribution and use in source and binary forms, with or without | |
7 | * modification, are permitted provided that the following conditions are met: | |
8 | * | |
9 | * 1. Redistributions of source code must retain the above copyright | |
10 | * notice, this list of conditions and the following disclaimer. | |
11 | * | |
12 | * 2. Redistributions in binary form must reproduce the above copyright | |
13 | * notice, this list of conditions and the following disclaimer in the | |
14 | * documentation and/or other materials provided with the distribution. | |
15 | * | |
16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |
20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
26 | * POSSIBILITY OF SUCH DAMAGE. | |
27 | */ | |
28 | ||
29 | #include <stdio.h> | |
30 | #include <stdlib.h> | |
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31 | #include <string.h> |
5 | 32 | |
33 | #include "text.h" | |
34 | #include "container.h" | |
35 | ||
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36 | static void selection_handler( |
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37 | GtkTextBuffer *buf, |
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38 | GtkTextIter *location, |
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39 | GtkTextMark *mark, |
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40 | UiTextArea *textview) |
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41 | { |
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42 | const char *mname = gtk_text_mark_get_name(mark); |
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43 | if(mname) { |
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44 | GtkTextIter begin; |
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45 | GtkTextIter end; |
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46 | int sel = gtk_text_buffer_get_selection_bounds (buf, &begin, &end); |
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47 | if(sel != textview->last_selection_state) { |
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48 | if(sel) { |
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49 | ui_set_group(textview->ctx, UI_GROUP_SELECTION); |
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50 | } else { |
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51 | ui_unset_group(textview->ctx, UI_GROUP_SELECTION); |
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52 | } |
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53 | } |
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54 | textview->last_selection_state = sel; |
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55 | } |
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56 | } |
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57 | |
5 | 58 | UIWIDGET ui_textarea(UiObject *obj, UiText *value) { |
59 | GtkWidget *text_area = gtk_text_view_new(); | |
60 | gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text_area), GTK_WRAP_WORD_CHAR); | |
61 | g_signal_connect( | |
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62 | text_area, |
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63 | "realize", |
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64 | G_CALLBACK(ui_textarea_realize_event), |
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65 | NULL); |
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66 | g_signal_connect( |
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67 | text_area, |
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68 | "selection-clear-event", |
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69 | G_CALLBACK(selection_handler), |
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70 | NULL); |
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71 | |
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72 | UiTextArea *uitext = ucx_mempool_malloc( |
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73 | obj->ctx->mempool, |
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74 | sizeof(UiTextArea)); |
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75 | uitext->ctx = obj->ctx; |
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76 | uitext->last_selection_state = 0; |
5 | 77 | |
78 | GtkWidget *scroll_area = gtk_scrolled_window_new (NULL, NULL); | |
79 | gtk_scrolled_window_set_policy( | |
80 | GTK_SCROLLED_WINDOW(scroll_area), | |
81 | GTK_POLICY_AUTOMATIC, | |
82 | GTK_POLICY_AUTOMATIC); // GTK_POLICY_ALWAYS | |
83 | gtk_container_add(GTK_CONTAINER(scroll_area), text_area); | |
84 | ||
85 | // font and padding | |
86 | PangoFontDescription *font; | |
87 | font = pango_font_description_from_string("Monospace"); | |
88 | gtk_widget_modify_font(text_area, font); | |
89 | pango_font_description_free(font); | |
90 | ||
91 | gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text_area), 2); | |
92 | gtk_text_view_set_right_margin(GTK_TEXT_VIEW(text_area), 2); | |
93 | ||
94 | // add | |
95 | UiContainer *ct = uic_get_current_container(obj); | |
96 | ct->add(ct, scroll_area); | |
97 | ||
98 | // bind value | |
99 | if(value) { | |
100 | value->get = ui_textarea_get; | |
101 | value->set = ui_textarea_set; | |
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102 | value->getsubstr = ui_textarea_getsubstr; |
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103 | value->insert = ui_textarea_insert; |
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104 | value->position = ui_textarea_position; |
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105 | value->selection = ui_textarea_selection; |
5 | 106 | value->value = NULL; |
107 | GtkTextBuffer *buf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text_area)); | |
108 | value->obj = buf; | |
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109 | if(!value->undomgr) { |
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110 | value->undomgr = ui_create_undomgr(); |
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111 | } |
5 | 112 | |
113 | // register undo manager | |
114 | g_signal_connect( | |
115 | buf, | |
116 | "insert-text", | |
117 | G_CALLBACK(ui_textbuf_insert), | |
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118 | value); |
5 | 119 | g_signal_connect( |
120 | buf, | |
121 | "delete-range", | |
122 | G_CALLBACK(ui_textbuf_delete), | |
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123 | value); |
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124 | |
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125 | g_signal_connect( |
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126 | buf, |
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127 | "mark-set", |
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128 | G_CALLBACK(selection_handler), |
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129 | uitext); |
5 | 130 | } |
131 | ||
132 | return scroll_area; | |
133 | } | |
134 | ||
135 | char* ui_textarea_get(UiText *text) { | |
136 | if(text->value) { | |
137 | g_free(text->value); | |
138 | } | |
139 | GtkTextBuffer *buf = text->obj; | |
140 | GtkTextIter start; | |
141 | GtkTextIter end; | |
142 | gtk_text_buffer_get_bounds(buf, &start, &end); | |
143 | char *str = gtk_text_buffer_get_text(buf, &start, &end, FALSE); | |
144 | text->value = str; | |
145 | return str; | |
146 | } | |
147 | ||
148 | void ui_textarea_set(UiText *text, char *str) { | |
149 | if(text->value) { | |
150 | g_free(text->value); | |
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151 | } |
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152 | text->value = NULL; |
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153 | gtk_text_buffer_set_text((GtkTextBuffer*)text->obj, str, -1); |
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154 | } |
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155 | |
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156 | char* ui_textarea_getsubstr(UiText *text, int begin, int end) { |
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157 | if(text->value) { |
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158 | g_free(text->value); |
5 | 159 | } |
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160 | GtkTextBuffer *buf = text->obj; |
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161 | GtkTextIter ib; |
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162 | GtkTextIter ie; |
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163 | gtk_text_buffer_get_iter_at_offset(text->obj, &ib, begin); |
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164 | gtk_text_buffer_get_iter_at_offset(text->obj, &ie, end); |
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165 | char *str = gtk_text_buffer_get_text(buf, &ib, &ie, FALSE); |
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166 | text->value = str; |
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167 | return str; |
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168 | } |
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169 | |
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170 | void ui_textarea_insert(UiText *text, int pos, char *str) { |
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171 | if(text->value) { |
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172 | g_free(text->value); |
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173 | } |
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174 | text->value = NULL; |
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175 | GtkTextIter offset; |
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176 | gtk_text_buffer_get_iter_at_offset(text->obj, &offset, pos); |
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177 | gtk_text_buffer_insert(text->obj, &offset, str, -1); |
5 | 178 | } |
179 | ||
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180 | int ui_textarea_position(UiText *text) { |
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181 | GtkTextIter begin; |
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182 | GtkTextIter end; |
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183 | gtk_text_buffer_get_selection_bounds(text->obj, &begin, &end); |
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184 | return gtk_text_iter_get_offset(&begin); |
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185 | } |
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186 | |
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187 | void ui_textarea_selection(UiText *text, int *begin, int *end) { |
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188 | GtkTextIter b; |
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189 | GtkTextIter e; |
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190 | gtk_text_buffer_get_selection_bounds(text->obj, &b, &e); |
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191 | *begin = gtk_text_iter_get_offset(&b); |
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192 | *end = gtk_text_iter_get_offset(&e); |
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193 | } |
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194 | |
5 | 195 | void ui_textarea_realize_event(GtkWidget *widget, gpointer data) { |
196 | gtk_widget_grab_focus(widget); | |
197 | } | |
198 | ||
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199 | |
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200 | // undo manager functions |
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201 | |
5 | 202 | void ui_textbuf_insert( |
203 | GtkTextBuffer *textbuffer, | |
204 | GtkTextIter *location, | |
205 | char *text, | |
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206 | int length, |
5 | 207 | void *data) |
208 | { | |
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209 | UiText *value = data; |
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210 | UiUndoMgr *mgr = value->undomgr; |
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211 | if(!mgr->event) { |
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212 | return; |
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213 | } |
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214 | |
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215 | if(mgr->cur) { |
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216 | UcxList *elm = mgr->cur->next; |
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217 | if(elm) { |
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218 | mgr->cur->next = NULL; |
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219 | while(elm) { |
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220 | elm->prev = NULL; |
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221 | UcxList *next = elm->next; |
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222 | ui_free_textbuf_op(elm->data); |
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223 | free(elm); |
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224 | elm = next; |
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225 | } |
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226 | } |
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227 | |
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228 | UiTextBufOp *last_op = mgr->cur->data; |
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229 | if( |
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230 | last_op->type == UI_TEXTBUF_INSERT && |
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231 | ui_check_insertstr(last_op->text, last_op->len, text, length) == 0) |
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232 | { |
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233 | // append text to last op |
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234 | int ln = last_op->len; |
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235 | char *newtext = malloc(ln + length + 1); |
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236 | memcpy(newtext, last_op->text, ln); |
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237 | memcpy(newtext+ln, text, length); |
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238 | newtext[ln+length] = '\0'; |
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239 | |
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240 | last_op->text = newtext; |
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241 | last_op->len = ln + length; |
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242 | last_op->end += length; |
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243 | |
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244 | return; |
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245 | } |
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246 | } |
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247 | |
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248 | char *dpstr = malloc(length + 1); |
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249 | memcpy(dpstr, text, length); |
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250 | dpstr[length] = 0; |
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251 | |
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252 | UiTextBufOp *op = malloc(sizeof(UiTextBufOp)); |
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253 | op->type = UI_TEXTBUF_INSERT; |
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254 | op->start = gtk_text_iter_get_offset(location); |
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255 | op->end = op->start+length; |
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256 | op->len = length; |
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257 | op->text = dpstr; |
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258 | |
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259 | UcxList *elm = ucx_list_append(NULL, op); |
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260 | mgr->cur = elm; |
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261 | mgr->begin = ucx_list_concat(mgr->begin, elm); |
5 | 262 | } |
263 | ||
264 | void ui_textbuf_delete( | |
265 | GtkTextBuffer *textbuffer, | |
266 | GtkTextIter *start, | |
267 | GtkTextIter *end, | |
268 | void *data) | |
269 | { | |
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270 | UiText *value = data; |
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271 | UiUndoMgr *mgr = value->undomgr; |
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272 | if(!mgr->event) { |
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273 | return; |
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274 | } |
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275 | |
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276 | if(mgr->cur) { |
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277 | UcxList *elm = mgr->cur->next; |
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278 | if(elm) { |
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279 | mgr->cur->next = NULL; |
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280 | while(elm) { |
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281 | elm->prev = NULL; |
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282 | UcxList *next = elm->next; |
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283 | ui_free_textbuf_op(elm->data); |
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284 | free(elm); |
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285 | elm = next; |
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286 | } |
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287 | } |
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288 | } |
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289 | |
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290 | char *text = gtk_text_buffer_get_text(value->obj, start, end, FALSE); |
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291 | |
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292 | UiTextBufOp *op = malloc(sizeof(UiTextBufOp)); |
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293 | op->type = UI_TEXTBUF_DELETE; |
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294 | op->start = gtk_text_iter_get_offset(start); |
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295 | op->end = gtk_text_iter_get_offset(end); |
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296 | op->len = op->end - op->start; |
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297 | |
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298 | char *dpstr = malloc(op->len + 1); |
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299 | memcpy(dpstr, text, op->len); |
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300 | dpstr[op->len] = 0; |
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301 | op->text = dpstr; |
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302 | |
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303 | UcxList *elm = ucx_list_append(NULL, op); |
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304 | mgr->cur = elm; |
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305 | mgr->begin = ucx_list_concat(mgr->begin, elm); |
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306 | } |
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307 | |
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308 | UiUndoMgr* ui_create_undomgr() { |
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309 | UiUndoMgr *mgr = malloc(sizeof(UiUndoMgr)); |
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310 | mgr->begin = NULL; |
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311 | mgr->cur = NULL; |
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312 | mgr->length = 0; |
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313 | mgr->event = 1; |
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314 | return mgr; |
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315 | } |
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316 | |
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317 | void ui_free_textbuf_op(UiTextBufOp *op) { |
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318 | if(op->text) { |
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319 | free(op->text); |
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320 | } |
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321 | free(op); |
5 | 322 | } |
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323 | |
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324 | int ui_check_insertstr(char *oldstr, int oldlen, char *newstr, int newlen) { |
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325 | // return 1 if oldstr + newstr are one word |
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326 | |
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327 | int has_space = 0; |
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328 | for(int i=0;i<oldlen;i++) { |
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329 | if(oldstr[i] < 33) { |
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330 | has_space = 1; |
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331 | break; |
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332 | } |
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333 | } |
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334 | |
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335 | for(int i=0;i<newlen;i++) { |
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336 | if(has_space && newstr[i] > 32) { |
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337 | return 1; |
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338 | } |
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339 | } |
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340 | |
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341 | return 0; |
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342 | } |
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343 | |
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344 | void ui_text_undo(UiText *value) { |
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345 | UiUndoMgr *mgr = value->undomgr; |
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346 | |
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347 | if(mgr->cur) { |
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348 | UiTextBufOp *op = mgr->cur->data; |
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349 | mgr->event = 0; |
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350 | switch(op->type) { |
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351 | case UI_TEXTBUF_INSERT: { |
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352 | GtkTextIter begin; |
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353 | GtkTextIter end; |
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354 | gtk_text_buffer_get_iter_at_offset(value->obj, &begin, op->start); |
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355 | gtk_text_buffer_get_iter_at_offset(value->obj, &end, op->end); |
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356 | gtk_text_buffer_delete(value->obj, &begin, &end); |
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357 | break; |
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358 | } |
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359 | case UI_TEXTBUF_DELETE: { |
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360 | GtkTextIter begin; |
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361 | GtkTextIter end; |
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362 | gtk_text_buffer_get_iter_at_offset(value->obj, &begin, op->start); |
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363 | gtk_text_buffer_get_iter_at_offset(value->obj, &end, op->end); |
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364 | gtk_text_buffer_insert(value->obj, &begin, op->text, op->len); |
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365 | break; |
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366 | } |
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367 | } |
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368 | mgr->event = 1; |
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369 | mgr->cur = mgr->cur->prev; |
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370 | } |
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371 | } |
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372 | |
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373 | void ui_text_redo(UiText *value) { |
8 | 374 | UiUndoMgr *mgr = value->undomgr; |
6
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375 | |
8 | 376 | UcxList *elm = NULL; |
377 | if(mgr->cur) { | |
378 | if(mgr->cur->next) { | |
379 | elm = mgr->cur->next; | |
380 | } | |
381 | } else if(mgr->begin) { | |
382 | elm = mgr->begin; | |
383 | } | |
384 | ||
385 | if(elm) { | |
386 | UiTextBufOp *op = elm->data; | |
387 | mgr->event = 0; | |
388 | switch(op->type) { | |
389 | case UI_TEXTBUF_INSERT: { | |
390 | GtkTextIter begin; | |
391 | GtkTextIter end; | |
392 | gtk_text_buffer_get_iter_at_offset(value->obj, &begin, op->start); | |
393 | gtk_text_buffer_get_iter_at_offset(value->obj, &end, op->end); | |
394 | gtk_text_buffer_insert(value->obj, &begin, op->text, op->len); | |
395 | break; | |
396 | } | |
397 | case UI_TEXTBUF_DELETE: { | |
398 | GtkTextIter begin; | |
399 | GtkTextIter end; | |
400 | gtk_text_buffer_get_iter_at_offset(value->obj, &begin, op->start); | |
401 | gtk_text_buffer_get_iter_at_offset(value->obj, &end, op->end); | |
402 | gtk_text_buffer_delete(value->obj, &begin, &end); | |
403 | break; | |
404 | } | |
405 | } | |
406 | mgr->event = 1; | |
407 | mgr->cur = elm; | |
408 | } | |
6
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409 | } |