initial commit

Signed-off-by: Peter Siegmund <mars3142@noreply.mars3142.dev>

libs/wxWidgets-3.3.1/include/wx/private/wordwrap.h

@@ -0,0 +1,78 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        wx/private/wordwrap.h
+// Purpose:     Simple helper for string word wrapping.
+// Author:      Vadim Zeitlin
+// Created:     2024-11-22
+// Copyright:   (c) 2024 Vadim Zeitlin <vadim@wxwidgets.org>
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_PRIVATE_WORDWRAP_H_
+#define _WX_PRIVATE_WORDWRAP_H_
+
+#include "wx/string.h"
+
+#include <vector>
+
+// ----------------------------------------------------------------------------
+// wxWordWrap helper for wxCmdLineParser
+// ----------------------------------------------------------------------------
+
+inline std::vector<wxString> wxWordWrap(const wxString& text, int widthMax)
+{
+    std::vector<wxString> lines;
+
+    wxString line;
+    int lastSpace = -1; // No space in the current line yet.
+    for ( auto ch : text )
+    {
+        // Always honour explicit line breaks.
+        if ( ch == '\n' )
+        {
+            lines.push_back(line);
+            line.clear();
+            lastSpace = -1;
+        }
+        else
+        {
+            const int lineLength = line.length();
+            if ( lineLength == widthMax )
+            {
+                // Can't continue this line.
+                if ( lastSpace == -1 )
+                {
+                    // No space in the line, just break it.
+                    lines.push_back(line);
+                    line.clear();
+                }
+                else
+                {
+                    // Break at the last space.
+                    lines.push_back(line.substr(0, lastSpace));
+
+                    // Also skip all the spaces following it, we don't want to
+                    // start the new line with spaces.
+                    while ( lastSpace < lineLength && line[lastSpace] == ' ' )
+                        lastSpace++;
+
+                    line = line.substr(lastSpace);
+                    lastSpace = -1;
+                }
+            }
+            else
+            {
+                if ( ch == ' ' )
+                    lastSpace = line.length();
+            }
+
+            line += ch;
+        }
+    }
+
+    if ( !line.empty() )
+        lines.push_back(line);
+
+    return lines;
+}
+
+#endif // _WX_PRIVATE_WORDWRAP_H_