InputText: Added ImGuiInputTextFlags_AlwaysInsertMode flag

imgui.cpp

@@ -7120,6 +7120,8 @@ static bool InputTextEx(const char* label, char* buf, int buf_size, const ImVec2
                 edit_state.StbState.select_start = ImMin(edit_state.StbState.select_start, edit_state.CurLenW);
                 edit_state.StbState.select_end = ImMin(edit_state.StbState.select_end, edit_state.CurLenW);
             }
+            if (flags & ImGuiInputTextFlags_AlwaysInsertMode)
+                edit_state.StbState.insert_mode = true;
             if (!is_multiline && (focus_requested_by_tab || (user_clicked && is_ctrl_down)))
                 select_all = true;
         }

imgui.h

@@ -462,6 +462,7 @@ enum ImGuiInputTextFlags_
     ImGuiInputTextFlags_AllowTabInput       = 1 << 10,  // Pressing TAB input a '\t' character into the text field
     ImGuiInputTextFlags_CtrlEnterForNewLine = 1 << 11,  // In multi-line mode, allow exiting edition by pressing Enter. Ctrl+Enter to add new line (by default adds new lines with Enter).
     ImGuiInputTextFlags_NoHorizontalScroll  = 1 << 12,  // Disable following the cursor horizontally
+    ImGuiInputTextFlags_AlwaysInsertMode    = 1 << 13,  // Insert mode
     // [Internal]
     ImGuiInputTextFlags_Multiline           = 1 << 20   // For internal use by InputTextMultiline()
 };