Mercurial > hg > toolkit / file diff

--- a/ui/motif/text.h	Thu Jan 23 21:08:43 2025 +0100
+++ b/ui/motif/text.h	Sat Feb 01 09:54:45 2025 +0100
@@ -1,7 +1,7 @@
 /*
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
  *
- * Copyright 2014 Olaf Wintermann. All rights reserved.
+ * Copyright 2025 Olaf Wintermann. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
@@ -36,6 +36,52 @@
 #ifdef	__cplusplus
 extern "C" {
 #endif
+    
+#define UI_TEXTBUF_INSERT 0
+#define UI_TEXTBUF_DELETE 1
+typedef struct UiTextBufOp UiTextBufOp;
+struct UiTextBufOp {
+    UiTextBufOp *prev;
+    UiTextBufOp *next;
+    int  type; // UI_TEXTBUF_INSERT, UI_TEXTBUF_DELETE
+    int  start;
+    int  end;
+    int  len;
+    char *text;
+};
+    
+typedef struct UiUndoMgr {
+    UiTextBufOp *begin;
+    UiTextBufOp *end;
+    UiTextBufOp *cur;
+    int         length;
+    int         event;
+} UiUndoMgr;
+
+typedef struct UiTextArea {
+    UiObject *obj;
+    UiVar *var;
+    int last_selection_state;
+} UiTextArea;
+
+char* ui_textarea_get(UiText *text);
+void ui_textarea_set(UiText *text, const char *str);
+char* ui_textarea_getsubstr(UiText *text, int begin, int end);
+void ui_textarea_insert(UiText *text, int pos, char *str);
+void ui_textarea_setposition(UiText *text, int pos);
+int ui_textarea_position(UiText *text);
+void ui_textarea_selection(UiText *text, int *begin, int *end);
+int ui_textarea_length(UiText *text);
+
+UiUndoMgr* ui_create_undomgr();
+void ui_destroy_undomgr(UiUndoMgr *mgr);
+void ui_text_selection_callback(
+        Widget widget,
+        UiTextArea *textarea,
+        XtPointer data);
+void ui_text_modify_callback(Widget widget, UiVar *var, XtPointer data);
+int ui_check_insertstr(char *oldstr, int oldlen, char *newstr, int newlen);
+void ui_free_textbuf_op(UiTextBufOp *op);
 
 char* ui_textfield_get(UiString *str);
 void ui_textfield_set(UiString *str, const char *value);