diff --git a/src/ImGui.NET/ImGui.Manual.cs b/src/ImGui.NET/ImGui.Manual.cs index 522c6f7..8fac3de 100644 --- a/src/ImGui.NET/ImGui.Manual.cs +++ b/src/ImGui.NET/ImGui.Manual.cs @@ -247,6 +247,114 @@ namespace ImGuiNET return result != 0; } + public static bool InputTextWithHint( + string label, + string hint, + ref string input, + uint maxLength) => InputTextWithHint(label, hint, ref input, maxLength, 0, null, IntPtr.Zero); + + public static bool InputTextWithHint( + string label, + string hint, + ref string input, + uint maxLength, + ImGuiInputTextFlags flags) => InputTextWithHint(label, hint, ref input, maxLength, flags, null, IntPtr.Zero); + + public static bool InputTextWithHint( + string label, + string hint, + ref string input, + uint maxLength, + ImGuiInputTextFlags flags, + ImGuiInputTextCallback callback) => InputTextWithHint(label, hint, ref input, maxLength, flags, callback, IntPtr.Zero); + + public static bool InputTextWithHint( + string label, + string hint, + ref string input, + uint maxLength, + ImGuiInputTextFlags flags, + ImGuiInputTextCallback callback, + IntPtr user_data) + { + int utf8LabelByteCount = Encoding.UTF8.GetByteCount(label); + byte* utf8LabelBytes; + if (utf8LabelByteCount > Util.StackAllocationSizeLimit) + { + utf8LabelBytes = Util.Allocate(utf8LabelByteCount + 1); + } + else + { + byte* stackPtr = stackalloc byte[utf8LabelByteCount + 1]; + utf8LabelBytes = stackPtr; + } + Util.GetUtf8(label, utf8LabelBytes, utf8LabelByteCount); + + int utf8HintByteCount = Encoding.UTF8.GetByteCount(hint); + byte* utf8HintBytes; + if (utf8HintByteCount > Util.StackAllocationSizeLimit) + { + utf8HintBytes = Util.Allocate(utf8HintByteCount + 1); + } + else + { + byte* stackPtr = stackalloc byte[utf8HintByteCount + 1]; + utf8HintBytes = stackPtr; + } + Util.GetUtf8(hint, utf8HintBytes, utf8HintByteCount); + + int utf8InputByteCount = Encoding.UTF8.GetByteCount(input); + int inputBufSize = Math.Max((int)maxLength + 1, utf8InputByteCount + 1); + + byte* utf8InputBytes; + byte* originalUtf8InputBytes; + if (inputBufSize > Util.StackAllocationSizeLimit) + { + utf8InputBytes = Util.Allocate(inputBufSize); + originalUtf8InputBytes = Util.Allocate(inputBufSize); + } + else + { + byte* inputStackBytes = stackalloc byte[inputBufSize]; + utf8InputBytes = inputStackBytes; + byte* originalInputStackBytes = stackalloc byte[inputBufSize]; + originalUtf8InputBytes = originalInputStackBytes; + } + Util.GetUtf8(input, utf8InputBytes, inputBufSize); + uint clearBytesCount = (uint)(inputBufSize - utf8InputByteCount); + Unsafe.InitBlockUnaligned(utf8InputBytes + utf8InputByteCount, 0, clearBytesCount); + Unsafe.CopyBlock(originalUtf8InputBytes, utf8InputBytes, (uint)inputBufSize); + + byte result = ImGuiNative.igInputTextWithHint( + utf8LabelBytes, + utf8HintBytes, + utf8InputBytes, + (uint)inputBufSize, + flags, + callback, + user_data.ToPointer()); + if (!Util.AreStringsEqual(originalUtf8InputBytes, inputBufSize, utf8InputBytes)) + { + input = Util.StringFromPtr(utf8InputBytes); + } + + if (utf8LabelByteCount > Util.StackAllocationSizeLimit) + { + Util.Free(utf8LabelBytes); + } + if (utf8HintByteCount > Util.StackAllocationSizeLimit) + { + Util.Free(utf8HintBytes); + } + if (inputBufSize > Util.StackAllocationSizeLimit) + { + Util.Free(utf8InputBytes); + Util.Free(originalUtf8InputBytes); + } + + return result != 0; + } + public static bool InputText( string label, IntPtr buf,