word wrapping for EditBox - starting implementation, issue #206

src/dlangui/core/editable.d

@@ -441,6 +441,13 @@ alias TokenProp = ubyte;
 /// TokenCategory string
 alias TokenPropString = TokenProp[];
 
+struct LineSpan {
+    /// start index of line
+    int start;
+    /// number of lines it spans
+    int len;
+}
+
 /// interface for custom syntax highlight, comments toggling, smart indents, and other language dependent features for source code editors
 interface SyntaxSupport {
 

src/dlangui/widgets/editors.d

@@ -285,6 +285,25 @@ class EditWidgetBase : ScrollWidgetBase, EditableContentListener, MenuItemAction
         return 1;
     }
 
+    protected bool _wordWrap;
+    /// true if word wrap mode is set
+    @property bool wordWrap() {
+        return _wordWrap;
+    }
+    /// true if word wrap mode is set
+    @property EditWidgetBase wordWrap(bool v) {
+        _wordWrap = v;
+        invalidate();
+        return this;
+    }
+
+    void wrapLine(dstring line, int maxWidth) {
+        
+    }
+
+    /// information about line span into several lines - in word wrap mode
+    protected LineSpan[] _span;
+
     /// override to add custom items on left panel
     protected void updateLeftPaneWidth() {
         _iconsWidth = _showIcons ? _iconsPaneWidth : 0;