From 4a2426449a4c65028c65c68ed9426495dec251e4 Mon Sep 17 00:00:00 2001
From: ocornut <omarcornut@gmail.com>
Date: Fri, 22 Dec 2023 19:51:49 +0100
Subject: [PATCH] Drags, Sliders, Inputs: removed all attempts to filter
 non-numerical characters during text editing. (#6810, #7096)

---
 docs/CHANGELOG.txt |  2 ++
 imgui_widgets.cpp  | 16 +---------------
 2 files changed, 3 insertions(+), 15 deletions(-)

diff --git a/docs/CHANGELOG.txt b/docs/CHANGELOG.txt
index 0293c7212..5c31ad055 100644
--- a/docs/CHANGELOG.txt
+++ b/docs/CHANGELOG.txt
@@ -70,6 +70,8 @@ Other changes:
 - InputTextMultiline: Tabbing through a multi-line text editor which allows Tab character inputs
   (using the ImGuiInputTextFlags_AllowTabInput flag) doesn't automatically activate it, in order
   to allow passing through multiple widgets easily. (#3092, #5759, #787)
+- Drags, Sliders, Inputs: removed all attempts to filter non-numerical characters during text
+  editing. Invalid inputs not applied to value, visibly reverted after validation. (#6810, #7096)
 - DragScalarN, SliderScalarN, InputScalarN, PushMultiItemsWidths: improve multi-components
   width computation to better distribute the error. (#7120, #7121) [@Nahor]
 - ColorEdit4: Layout tweaks for very small sizes. (#7120, #7121)
diff --git a/imgui_widgets.cpp b/imgui_widgets.cpp
index 99d0c6c25..2ded6913a 100644
--- a/imgui_widgets.cpp
+++ b/imgui_widgets.cpp
@@ -3395,14 +3395,6 @@ bool ImGui::TempInputText(const ImRect& bb, ImGuiID id, const char* label, char*
     return value_changed;
 }
 
-static inline ImGuiInputTextFlags InputScalar_DefaultCharsFilter(ImGuiDataType data_type, const char* format)
-{
-    if (data_type == ImGuiDataType_Float || data_type == ImGuiDataType_Double)
-        return ImGuiInputTextFlags_CharsScientific;
-    const char format_last_char = format[0] ? format[strlen(format) - 1] : 0;
-    return (format_last_char == 'x' || format_last_char == 'X') ? ImGuiInputTextFlags_CharsHexadecimal : ImGuiInputTextFlags_CharsDecimal;
-}
-
 // Note that Drag/Slider functions are only forwarding the min/max values clamping values if the ImGuiSliderFlags_AlwaysClamp flag is set!
 // This is intended: this way we allow CTRL+Click manual input to set a value out of bounds, for maximum flexibility.
 // However this may not be ideal for all uses, as some user code may break on out of bound values.
@@ -3420,7 +3412,6 @@ bool ImGui::TempInputScalar(const ImRect& bb, ImGuiID id, const char* label, ImG
     ImStrTrimBlanks(data_buf);
 
     ImGuiInputTextFlags flags = ImGuiInputTextFlags_AutoSelectAll | (ImGuiInputTextFlags)ImGuiInputTextFlags_NoMarkEdited;
-    flags |= InputScalar_DefaultCharsFilter(data_type, format);
 
     bool value_changed = false;
     if (TempInputText(bb, id, label, data_buf, IM_ARRAYSIZE(data_buf), flags))
@@ -3464,9 +3455,6 @@ bool ImGui::InputScalar(const char* label, ImGuiDataType data_type, void* p_data
     char buf[64];
     DataTypeFormatString(buf, IM_ARRAYSIZE(buf), data_type, p_data, format);
 
-    // Testing ActiveId as a minor optimization as filtering is not needed until active
-    if (g.ActiveId == 0 && (flags & (ImGuiInputTextFlags_CharsDecimal | ImGuiInputTextFlags_CharsHexadecimal | ImGuiInputTextFlags_CharsScientific)) == 0)
-        flags |= InputScalar_DefaultCharsFilter(data_type, format);
     flags |= ImGuiInputTextFlags_AutoSelectAll | (ImGuiInputTextFlags)ImGuiInputTextFlags_NoMarkEdited; // We call MarkItemEdited() ourselves by comparing the actual data rather than the string.
 
     bool value_changed = false;
@@ -3561,7 +3549,6 @@ bool ImGui::InputScalarN(const char* label, ImGuiDataType data_type, void* p_dat
 
 bool ImGui::InputFloat(const char* label, float* v, float step, float step_fast, const char* format, ImGuiInputTextFlags flags)
 {
-    flags |= ImGuiInputTextFlags_CharsScientific;
     return InputScalar(label, ImGuiDataType_Float, (void*)v, (void*)(step > 0.0f ? &step : NULL), (void*)(step_fast > 0.0f ? &step_fast : NULL), format, flags);
 }
 
@@ -3604,7 +3591,6 @@ bool ImGui::InputInt4(const char* label, int v[4], ImGuiInputTextFlags flags)
 
 bool ImGui::InputDouble(const char* label, double* v, double step, double step_fast, const char* format, ImGuiInputTextFlags flags)
 {
-    flags |= ImGuiInputTextFlags_CharsScientific;
     return InputScalar(label, ImGuiDataType_Double, (void*)v, (void*)(step > 0.0 ? &step : NULL), (void*)(step_fast > 0.0 ? &step_fast : NULL), format, flags);
 }
 
@@ -5238,7 +5224,7 @@ bool ImGui::ColorEdit4(const char* label, float col[4], ImGuiColorEditFlags flag
         else
             ImFormatString(buf, IM_ARRAYSIZE(buf), "#%02X%02X%02X", ImClamp(i[0], 0, 255), ImClamp(i[1], 0, 255), ImClamp(i[2], 0, 255));
         SetNextItemWidth(w_inputs);
-        if (InputText("##Text", buf, IM_ARRAYSIZE(buf), ImGuiInputTextFlags_CharsHexadecimal | ImGuiInputTextFlags_CharsUppercase))
+        if (InputText("##Text", buf, IM_ARRAYSIZE(buf), ImGuiInputTextFlags_CharsUppercase))
         {
             value_changed = true;
             char* p = buf;