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Sliders: removed unnecessary is_logarithmic parameters as they can be inferred. (#3786, #1823, #1316, #642)

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ocornut
2026-02-26 18:34:23 +01:00
parent ef022c5e0a
commit 14e0c70f88
3 changed files with 16 additions and 16 deletions
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2
imgui_demo.cpp
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@@ -10003,7 +10003,7 @@ static void ShowExampleAppWindowTitles(bool*)
ImGui::SetNextWindowPos(ImVec2(base_pos.x + 100, base_pos.y + 200), ImGuiCond_FirstUseEver);
ImGui::Begin("Same title as another window##2");
IMGUI_DEMO_MARKER("Examples/Manipulating window titles##2");;
IMGUI_DEMO_MARKER("Examples/Manipulating window titles##2");
ImGui::Text("This is window 2.\nMy title is the same as window 1, but my identifier is unique.");
ImGui::End();

4
imgui_internal.h
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@@ -3661,8 +3661,8 @@ namespace ImGui
// Template functions are instantiated in imgui_widgets.cpp for a finite number of types.
// To use them externally (for custom widget) you may need an "extern template" statement in your code in order to link to existing instances and silence Clang warnings (see #2036).
// e.g. " extern template IMGUI_API float RoundScalarWithFormatT<float, float>(const char* format, ImGuiDataType data_type, float v); "
template<typename T, typename SIGNED_T, typename FLOAT_T> IMGUI_API float ScaleRatioFromValueT(ImGuiDataType data_type, T v, T v_min, T v_max, bool is_logarithmic, float logarithmic_zero_epsilon, float zero_deadzone_size);
template<typename T, typename SIGNED_T, typename FLOAT_T> IMGUI_API T ScaleValueFromRatioT(ImGuiDataType data_type, float t, T v_min, T v_max, bool is_logarithmic, float logarithmic_zero_epsilon, float zero_deadzone_size);
template<typename T, typename SIGNED_T, typename FLOAT_T> IMGUI_API float ScaleRatioFromValueT(ImGuiDataType data_type, T v, T v_min, T v_max, float logarithmic_zero_epsilon, float zero_deadzone_size);
template<typename T, typename SIGNED_T, typename FLOAT_T> IMGUI_API T ScaleValueFromRatioT(ImGuiDataType data_type, float t, T v_min, T v_max, float logarithmic_zero_epsilon, float zero_deadzone_size);
template<typename T, typename SIGNED_T, typename FLOAT_T> IMGUI_API bool DragBehaviorT(ImGuiDataType data_type, T* v, float v_speed, T v_min, T v_max, const char* format, ImGuiSliderFlags flags);
template<typename T, typename SIGNED_T, typename FLOAT_T> IMGUI_API bool SliderBehaviorT(const ImRect& bb, ImGuiID id, ImGuiDataType data_type, T* v, T v_min, T v_max, const char* format, ImGuiSliderFlags flags, ImRect* out_grab_bb);
template<typename T> IMGUI_API T RoundScalarWithFormatT(const char* format, ImGuiDataType data_type, T v);

26
imgui_widgets.cpp
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@@ -2564,9 +2564,9 @@ bool ImGui::DragBehaviorT(ImGuiDataType data_type, TYPE* v, float v_speed, const
logarithmic_zero_epsilon = ImPow(0.1f, (float)decimal_precision);
// Convert to parametric space, apply delta, convert back
float v_old_parametric = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, v_cur, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
float v_old_parametric = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, v_cur, v_min, v_max, logarithmic_zero_epsilon, zero_deadzone_halfsize);
float v_new_parametric = v_old_parametric + g.DragCurrentAccum;
v_cur = ScaleValueFromRatioT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, v_new_parametric, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
v_cur = ScaleValueFromRatioT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, v_new_parametric, v_min, v_max, logarithmic_zero_epsilon, zero_deadzone_halfsize);
v_old_ref_for_accum_remainder = v_old_parametric;
}
else
@@ -2583,7 +2583,7 @@ bool ImGui::DragBehaviorT(ImGuiDataType data_type, TYPE* v, float v_speed, const
if (is_logarithmic)
{
// Convert to parametric space, apply delta, convert back
float v_new_parametric = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, v_cur, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
float v_new_parametric = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, v_cur, v_min, v_max, logarithmic_zero_epsilon, zero_deadzone_halfsize);
g.DragCurrentAccum -= (float)(v_new_parametric - v_old_ref_for_accum_remainder);
}
else
@@ -2933,14 +2933,14 @@ bool ImGui::DragIntRange2(const char* label, int* v_current_min, int* v_current_
// Convert a value v in the output space of a slider into a parametric position on the slider itself (the logical opposite of ScaleValueFromRatioT)
template<typename TYPE, typename SIGNEDTYPE, typename FLOATTYPE>
float ImGui::ScaleRatioFromValueT(ImGuiDataType data_type, TYPE v, TYPE v_min, TYPE v_max, bool is_logarithmic, float logarithmic_zero_epsilon, float zero_deadzone_halfsize)
float ImGui::ScaleRatioFromValueT(ImGuiDataType data_type, TYPE v, TYPE v_min, TYPE v_max, float logarithmic_zero_epsilon, float zero_deadzone_halfsize)
{
if (v_min == v_max)
return 0.0f;
IM_UNUSED(data_type);
const TYPE v_clamped = (v_min < v_max) ? ImClamp(v, v_min, v_max) : ImClamp(v, v_max, v_min);
if (is_logarithmic)
if (logarithmic_zero_epsilon > 0.0f) // == is_logarithmic from caller
{
bool flipped = v_max < v_min;
@@ -2990,7 +2990,7 @@ float ImGui::ScaleRatioFromValueT(ImGuiDataType data_type, TYPE v, TYPE v_min, T
// Convert a parametric position on a slider into a value v in the output space (the logical opposite of ScaleRatioFromValueT)
template<typename TYPE, typename SIGNEDTYPE, typename FLOATTYPE>
TYPE ImGui::ScaleValueFromRatioT(ImGuiDataType data_type, float t, TYPE v_min, TYPE v_max, bool is_logarithmic, float logarithmic_zero_epsilon, float zero_deadzone_halfsize)
TYPE ImGui::ScaleValueFromRatioT(ImGuiDataType data_type, float t, TYPE v_min, TYPE v_max, float logarithmic_zero_epsilon, float zero_deadzone_halfsize)
{
// We special-case the extents because otherwise our logarithmic fudging can lead to "mathematically correct"
// but non-intuitive behaviors like a fully-left slider not actually reaching the minimum value. Also generally simpler.
@@ -3000,7 +3000,7 @@ TYPE ImGui::ScaleValueFromRatioT(ImGuiDataType data_type, float t, TYPE v_min, T
return v_max;
TYPE result = (TYPE)0;
if (is_logarithmic)
if (logarithmic_zero_epsilon > 0.0f) // == is_logarithmic from caller
{
// Fudge min/max to avoid getting silly results close to zero
FLOATTYPE v_min_fudged = (ImAbs((FLOATTYPE)v_min) < logarithmic_zero_epsilon) ? ((v_min < 0.0f) ? -logarithmic_zero_epsilon : logarithmic_zero_epsilon) : (FLOATTYPE)v_min;
@@ -3105,7 +3105,7 @@ bool ImGui::SliderBehaviorT(const ImRect& bb, ImGuiID id, ImGuiDataType data_typ
const float mouse_abs_pos = g.IO.MousePos[axis];
if (g.ActiveIdIsJustActivated)
{
float grab_t = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, *v, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
float grab_t = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, *v, v_min, v_max, logarithmic_zero_epsilon, zero_deadzone_halfsize);
if (axis == ImGuiAxis_Y)
grab_t = 1.0f - grab_t;
const float grab_pos = ImLerp(slider_usable_pos_min, slider_usable_pos_max, grab_t);
@@ -3160,7 +3160,7 @@ bool ImGui::SliderBehaviorT(const ImRect& bb, ImGuiID id, ImGuiDataType data_typ
}
else if (g.SliderCurrentAccumDirty)
{
clicked_t = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, *v, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
clicked_t = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, *v, v_min, v_max, logarithmic_zero_epsilon, zero_deadzone_halfsize);
if ((clicked_t >= 1.0f && delta > 0.0f) || (clicked_t <= 0.0f && delta < 0.0f)) // This is to avoid applying the saturation when already past the limits
{
@@ -3174,10 +3174,10 @@ bool ImGui::SliderBehaviorT(const ImRect& bb, ImGuiID id, ImGuiDataType data_typ
clicked_t = ImSaturate(clicked_t + delta);
// Calculate what our "new" clicked_t will be, and thus how far we actually moved the slider, and subtract this from the accumulator
TYPE v_new = ScaleValueFromRatioT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, clicked_t, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
TYPE v_new = ScaleValueFromRatioT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, clicked_t, v_min, v_max, logarithmic_zero_epsilon, zero_deadzone_halfsize);
if (is_floating_point && !(flags & ImGuiSliderFlags_NoRoundToFormat))
v_new = RoundScalarWithFormatT<TYPE>(format, data_type, v_new);
float new_clicked_t = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, v_new, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
float new_clicked_t = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, v_new, v_min, v_max, logarithmic_zero_epsilon, zero_deadzone_halfsize);
if (delta > 0)
g.SliderCurrentAccum -= ImMin(new_clicked_t - old_clicked_t, delta);
@@ -3195,7 +3195,7 @@ bool ImGui::SliderBehaviorT(const ImRect& bb, ImGuiID id, ImGuiDataType data_typ
if (set_new_value)
{
TYPE v_new = ScaleValueFromRatioT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, clicked_t, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
TYPE v_new = ScaleValueFromRatioT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, clicked_t, v_min, v_max, logarithmic_zero_epsilon, zero_deadzone_halfsize);
// Round to user desired precision based on format string
if (is_floating_point && !(flags & ImGuiSliderFlags_NoRoundToFormat))
@@ -3217,7 +3217,7 @@ bool ImGui::SliderBehaviorT(const ImRect& bb, ImGuiID id, ImGuiDataType data_typ
else
{
// Output grab position so it can be displayed by the caller
float grab_t = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, *v, v_min, v_max, is_logarithmic, logarithmic_zero_epsilon, zero_deadzone_halfsize);
float grab_t = ScaleRatioFromValueT<TYPE, SIGNEDTYPE, FLOATTYPE>(data_type, *v, v_min, v_max, logarithmic_zero_epsilon, zero_deadzone_halfsize);
if (axis == ImGuiAxis_Y)
grab_t = 1.0f - grab_t;
const float grab_pos = ImLerp(slider_usable_pos_min, slider_usable_pos_max, grab_t);