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DragScalar, InputScalar, SliderScalar: Added support for u8/s8/u16/s16 data types. We are reusing function instances for larger types to reduce code size. (#643, #320, #708, #1011)

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docking
omar 6 years ago
parent 525a53a86b
commit 736d3e2654
4 changed files with 126 additions and 33 deletions
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2
docs/CHANGELOG.txt
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@ -42,6 +42,8 @@ Breaking Changes:
Other Changes:
- Nav: Fixed a tap on AltGR (e.g. German keyboard) from navigation to the menu layer.
- DragScalar, InputScalar, SliderScalar: Added support for u8/s8/u16/s16 data types.
We are reusing function instances for larger types to reduce code size. (#643, #320, #708, #1011)
- InputInt, InputFloat, InputScalar: Fix to keep the label of the +/- buttons centered when
style.FramePadding.x is abnormally larger than style.FramePadding.y. Since the buttons are
meant to be square (to align with e.g. color button) we always use FramePadding.y. (#2367)

12
imgui.h
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@ -150,6 +150,10 @@ typedef int (*ImGuiInputTextCallback)(ImGuiInputTextCallbackData *data);
typedef void (*ImGuiSizeCallback)(ImGuiSizeCallbackData* data);
// Scalar data types
typedef char ImS8; // 8-bit signed integer == char
typedef unsigned char ImU8; // 8-bit unsigned integer
typedef short ImS16; // 16-bit signed integer
typedef unsigned short ImU16; // 16-bit unsigned integer
typedef signed int ImS32; // 32-bit signed integer == int
typedef unsigned int ImU32; // 32-bit unsigned integer (often used to store packed colors)
#if defined(_MSC_VER) && !defined(__clang__)
@ -884,10 +888,14 @@ enum ImGuiDragDropFlags_
// A primary data type
enum ImGuiDataType_
{
ImGuiDataType_S8, // char
ImGuiDataType_U8, // unsigned char
ImGuiDataType_S16, // short
ImGuiDataType_U16, // unsigned short
ImGuiDataType_S32, // int
ImGuiDataType_U32, // unsigned int
ImGuiDataType_S64, // long long, __int64
ImGuiDataType_U64, // unsigned long long, unsigned __int64
ImGuiDataType_S64, // long long / __int64
ImGuiDataType_U64, // unsigned long long / unsigned __int64
ImGuiDataType_Float, // float
ImGuiDataType_Double, // double
ImGuiDataType_COUNT

20
imgui_demo.cpp
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@ -1198,6 +1198,10 @@ static void ShowDemoWindowWidgets()
ImS64 LLONG_MAX = 9223372036854775807LL;
ImU64 ULLONG_MAX = (2ULL * 9223372036854775807LL + 1);
#endif
const char s8_zero = 0, s8_one = 1, s8_fifty = 50, s8_min = -128, s8_max = 127;
const ImU8 u8_zero = 0, u8_one = 1, u8_fifty = 50, u8_min = 0, u8_max = 255;
const short s16_zero = 0, s16_one = 1, s16_fifty = 50, s16_min = -32768, s16_max = 32767;
const ImU16 u16_zero = 0, u16_one = 1, u16_fifty = 50, u16_min = 0, u16_max = 65535;
const ImS32 s32_zero = 0, s32_one = 1, s32_fifty = 50, s32_min = INT_MIN/2, s32_max = INT_MAX/2, s32_hi_a = INT_MAX/2 - 100, s32_hi_b = INT_MAX/2;
const ImU32 u32_zero = 0, u32_one = 1, u32_fifty = 50, u32_min = 0, u32_max = UINT_MAX/2, u32_hi_a = UINT_MAX/2 - 100, u32_hi_b = UINT_MAX/2;
const ImS64 s64_zero = 0, s64_one = 1, s64_fifty = 50, s64_min = LLONG_MIN/2, s64_max = LLONG_MAX/2, s64_hi_a = LLONG_MAX/2 - 100, s64_hi_b = LLONG_MAX/2;
@ -1206,6 +1210,10 @@ static void ShowDemoWindowWidgets()
const double f64_zero = 0., f64_one = 1., f64_lo_a = -1000000000000000.0, f64_hi_a = +1000000000000000.0;
// State
static char s8_v = 127;
static ImU8 u8_v = 255;
static short s16_v = 32767;
static ImU16 u16_v = 65535;
static ImS32 s32_v = -1;
static ImU32 u32_v = (ImU32)-1;
static ImS64 s64_v = -1;
@ -1217,6 +1225,10 @@ static void ShowDemoWindowWidgets()
static bool drag_clamp = false;
ImGui::Text("Drags:");
ImGui::Checkbox("Clamp integers to 0..50", &drag_clamp); ImGui::SameLine(); ShowHelpMarker("As with every widgets in dear imgui, we never modify values unless there is a user interaction.\nYou can override the clamping limits by using CTRL+Click to input a value.");
ImGui::DragScalar("drag s8", ImGuiDataType_S8, &s8_v, drag_speed, drag_clamp ? &s8_zero : NULL, drag_clamp ? &s8_fifty : NULL);
ImGui::DragScalar("drag u8", ImGuiDataType_U8, &u8_v, drag_speed, drag_clamp ? &u8_zero : NULL, drag_clamp ? &u8_fifty : NULL, "%u ms");
ImGui::DragScalar("drag s16", ImGuiDataType_S16, &s16_v, drag_speed, drag_clamp ? &s16_zero : NULL, drag_clamp ? &s16_fifty : NULL);
ImGui::DragScalar("drag u16", ImGuiDataType_U16, &u16_v, drag_speed, drag_clamp ? &u16_zero : NULL, drag_clamp ? &u16_fifty : NULL, "%u ms");
ImGui::DragScalar("drag s32", ImGuiDataType_S32, &s32_v, drag_speed, drag_clamp ? &s32_zero : NULL, drag_clamp ? &s32_fifty : NULL);
ImGui::DragScalar("drag u32", ImGuiDataType_U32, &u32_v, drag_speed, drag_clamp ? &u32_zero : NULL, drag_clamp ? &u32_fifty : NULL, "%u ms");
ImGui::DragScalar("drag s64", ImGuiDataType_S64, &s64_v, drag_speed, drag_clamp ? &s64_zero : NULL, drag_clamp ? &s64_fifty : NULL);
@ -1227,6 +1239,10 @@ static void ShowDemoWindowWidgets()
ImGui::DragScalar("drag double ^2", ImGuiDataType_Double, &f64_v, 0.0005f, &f64_zero, &f64_one, "0 < %.10f < 1", 2.0f);
ImGui::Text("Sliders");
ImGui::SliderScalar("slider s8 full", ImGuiDataType_S8, &s8_v, &s8_min, &s8_max, "%d");
ImGui::SliderScalar("slider u8 full", ImGuiDataType_U8, &u8_v, &u8_min, &u8_max, "%u");
ImGui::SliderScalar("slider s16 full", ImGuiDataType_S16, &s16_v, &s16_min, &s16_max, "%d");
ImGui::SliderScalar("slider u16 full", ImGuiDataType_U16, &u16_v, &u16_min, &u16_max, "%u");
ImGui::SliderScalar("slider s32 low", ImGuiDataType_S32, &s32_v, &s32_zero, &s32_fifty,"%d");
ImGui::SliderScalar("slider s32 high", ImGuiDataType_S32, &s32_v, &s32_hi_a, &s32_hi_b, "%d");
ImGui::SliderScalar("slider s32 full", ImGuiDataType_S32, &s32_v, &s32_min, &s32_max, "%d");
@ -1249,6 +1265,10 @@ static void ShowDemoWindowWidgets()
static bool inputs_step = true;
ImGui::Text("Inputs");
ImGui::Checkbox("Show step buttons", &inputs_step);
ImGui::InputScalar("input s8", ImGuiDataType_S8, &s8_v, inputs_step ? &s8_one : NULL, NULL, "%d");
ImGui::InputScalar("input u8", ImGuiDataType_U8, &u8_v, inputs_step ? &u8_one : NULL, NULL, "%u");
ImGui::InputScalar("input s16", ImGuiDataType_S16, &s16_v, inputs_step ? &s16_one : NULL, NULL, "%d");
ImGui::InputScalar("input u16", ImGuiDataType_U16, &u16_v, inputs_step ? &u16_one : NULL, NULL, "%u");
ImGui::InputScalar("input s32", ImGuiDataType_S32, &s32_v, inputs_step ? &s32_one : NULL, NULL, "%d");
ImGui::InputScalar("input s32 hex", ImGuiDataType_S32, &s32_v, inputs_step ? &s32_one : NULL, NULL, "%08X", ImGuiInputTextFlags_CharsHexadecimal);
ImGui::InputScalar("input u32", ImGuiDataType_U32, &u32_v, inputs_step ? &u32_one : NULL, NULL, "%u");

125
imgui_widgets.cpp
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@ -74,22 +74,30 @@ Index of this file:
//-------------------------------------------------------------------------
// Those MIN/MAX values are not define because we need to point to them
static const ImS32 IM_S32_MIN = INT_MIN; // (-2147483647 - 1), (0x80000000);
static const ImS32 IM_S32_MAX = INT_MAX; // (2147483647), (0x7FFFFFFF)
static const ImU32 IM_U32_MIN = 0;
static const ImU32 IM_U32_MAX = UINT_MAX; // (0xFFFFFFFF)
static const char IM_S8_MIN = -128;
static const char IM_S8_MAX = 127;
static const unsigned char IM_U8_MIN = 0;
static const unsigned char IM_U8_MAX = 0xFF;
static const short IM_S16_MIN = -32768;
static const short IM_S16_MAX = 32767;
static const unsigned short IM_U16_MIN = 0;
static const unsigned short IM_U16_MAX = 0xFFFF;
static const ImS32 IM_S32_MIN = INT_MIN; // (-2147483647 - 1), (0x80000000);
static const ImS32 IM_S32_MAX = INT_MAX; // (2147483647), (0x7FFFFFFF)
static const ImU32 IM_U32_MIN = 0;
static const ImU32 IM_U32_MAX = UINT_MAX; // (0xFFFFFFFF)
#ifdef LLONG_MIN
static const ImS64 IM_S64_MIN = LLONG_MIN; // (-9223372036854775807ll - 1ll);
static const ImS64 IM_S64_MAX = LLONG_MAX; // (9223372036854775807ll);
static const ImS64 IM_S64_MIN = LLONG_MIN; // (-9223372036854775807ll - 1ll);
static const ImS64 IM_S64_MAX = LLONG_MAX; // (9223372036854775807ll);
#else
static const ImS64 IM_S64_MIN = -9223372036854775807LL - 1;
static const ImS64 IM_S64_MAX = 9223372036854775807LL;
static const ImS64 IM_S64_MIN = -9223372036854775807LL - 1;
static const ImS64 IM_S64_MAX = 9223372036854775807LL;
#endif
static const ImU64 IM_U64_MIN = 0;
static const ImU64 IM_U64_MIN = 0;
#ifdef ULLONG_MAX
static const ImU64 IM_U64_MAX = ULLONG_MAX; // (0xFFFFFFFFFFFFFFFFull);
static const ImU64 IM_U64_MAX = ULLONG_MAX; // (0xFFFFFFFFFFFFFFFFull);
#else
static const ImU64 IM_U64_MAX = (2ULL * 9223372036854775807LL + 1);
static const ImU64 IM_U64_MAX = (2ULL * 9223372036854775807LL + 1);
#endif
//-------------------------------------------------------------------------
@ -1495,17 +1503,21 @@ struct ImGuiDataTypeInfo
static const ImGuiDataTypeInfo GDataTypeInfo[] =
{
{ sizeof(int), "%d", "%d" },
{ sizeof(unsigned int), "%u", "%u" },
{ sizeof(char), "%d", "%d" }, // ImGuiDataType_S8
{ sizeof(unsigned char), "%u", "%u" },
{ sizeof(short), "%d", "%d" }, // ImGuiDataType_S16
{ sizeof(unsigned short), "%u", "%u" },
{ sizeof(int), "%d", "%d" }, // ImGuiDataType_S32
{ sizeof(unsigned int), "%u", "%u" },
#ifdef _MSC_VER
{ sizeof(ImS64), "%I64d","%I64d" },
{ sizeof(ImU64), "%I64u","%I64u" },
{ sizeof(ImS64), "%I64d","%I64d" }, // ImGuiDataType_S64
{ sizeof(ImU64), "%I64u","%I64u" },
#else
{ sizeof(ImS64), "%lld", "%lld" },
{ sizeof(ImU64), "%llu", "%llu" },
{ sizeof(ImS64), "%lld", "%lld" }, // ImGuiDataType_S64
{ sizeof(ImU64), "%llu", "%llu" },
#endif
{ sizeof(float), "%f", "%f" }, // float are promoted to double in va_arg
{ sizeof(double), "%f", "%lf" },
{ sizeof(float), "%f", "%f" }, // ImGuiDataType_Float (float are promoted to double in va_arg)
{ sizeof(double), "%f", "%lf" }, // ImGuiDataType_Double
};
IM_STATIC_ASSERT(IM_ARRAYSIZE(GDataTypeInfo) == ImGuiDataType_COUNT);
@ -1535,14 +1547,23 @@ static const char* PatchFormatStringFloatToInt(const char* fmt)
static inline int DataTypeFormatString(char* buf, int buf_size, ImGuiDataType data_type, const void* data_ptr, const char* format)
{
if (data_type == ImGuiDataType_S32 || data_type == ImGuiDataType_U32) // Signedness doesn't matter when pushing the argument
// Signedness doesn't matter when pushing integer arguments
if (data_type == ImGuiDataType_S32 || data_type == ImGuiDataType_U32)
return ImFormatString(buf, buf_size, format, *(const ImU32*)data_ptr);
if (data_type == ImGuiDataType_S64 || data_type == ImGuiDataType_U64) // Signedness doesn't matter when pushing the argument
if (data_type == ImGuiDataType_S64 || data_type == ImGuiDataType_U64)
return ImFormatString(buf, buf_size, format, *(const ImU64*)data_ptr);
if (data_type == ImGuiDataType_Float)
return ImFormatString(buf, buf_size, format, *(const float*)data_ptr);
if (data_type == ImGuiDataType_Double)
return ImFormatString(buf, buf_size, format, *(const double*)data_ptr);
if (data_type == ImGuiDataType_S8)
return ImFormatString(buf, buf_size, format, *(const ImS8*)data_ptr);
if (data_type == ImGuiDataType_U8)
return ImFormatString(buf, buf_size, format, *(const ImU8*)data_ptr);
if (data_type == ImGuiDataType_S16)
return ImFormatString(buf, buf_size, format, *(const ImS16*)data_ptr);
if (data_type == ImGuiDataType_U16)
return ImFormatString(buf, buf_size, format, *(const ImU16*)data_ptr);
IM_ASSERT(0);
return 0;
}
@ -1553,13 +1574,29 @@ static void DataTypeApplyOp(ImGuiDataType data_type, int op, void* output, void*
IM_ASSERT(op == '+' || op == '-');
switch (data_type)
{
case ImGuiDataType_S8:
if (op == '+') *(ImS8*)output = *(const ImS8*)arg1 + *(const ImS8*)arg2;
else if (op == '-') *(ImS8*)output = *(const ImS8*)arg1 - *(const ImS8*)arg2;
return;
case ImGuiDataType_U8:
if (op == '+') *(ImU8*)output = *(const ImU8*)arg1 + *(const ImU8*)arg2;
else if (op == '-') *(ImU8*)output = *(const ImU8*)arg1 - *(const ImU8*)arg2;
return;
case ImGuiDataType_S16:
if (op == '+') *(ImS16*)output = *(const ImS16*)arg1 + *(const ImS16*)arg2;
else if (op == '-') *(ImS16*)output = *(const ImS16*)arg1 - *(const ImS16*)arg2;
return;
case ImGuiDataType_U16:
if (op == '+') *(ImU16*)output = *(const ImU16*)arg1 + *(const ImU16*)arg2;
else if (op == '-') *(ImU16*)output = *(const ImU16*)arg1 - *(const ImU16*)arg2;
return;
case ImGuiDataType_S32:
if (op == '+') *(int*)output = *(const int*)arg1 + *(const int*)arg2;
else if (op == '-') *(int*)output = *(const int*)arg1 - *(const int*)arg2;
if (op == '+') *(ImS32*)output = *(const ImS32*)arg1 + *(const ImS32*)arg2;
else if (op == '-') *(ImS32*)output = *(const ImS32*)arg1 - *(const ImS32*)arg2;
return;
case ImGuiDataType_U32:
if (op == '+') *(unsigned int*)output = *(const unsigned int*)arg1 + *(const ImU32*)arg2;
else if (op == '-') *(unsigned int*)output = *(const unsigned int*)arg1 - *(const ImU32*)arg2;
if (op == '+') *(ImU32*)output = *(const ImU32*)arg1 + *(const ImU32*)arg2;
else if (op == '-') *(ImU32*)output = *(const ImU32*)arg1 - *(const ImU32*)arg2;
return;
case ImGuiDataType_S64:
if (op == '+') *(ImS64*)output = *(const ImS64*)arg1 + *(const ImS64*)arg2;
@ -1614,6 +1651,7 @@ static bool DataTypeApplyOpFromText(const char* buf, const char* initial_value_b
if (format == NULL)
format = GDataTypeInfo[data_type].ScanFmt;
// FIXME-LEGACY: The aim is to remove those operators and write a proper expression evaluator at some point..
int arg1i = 0;
if (data_type == ImGuiDataType_S32)
{
@ -1628,12 +1666,6 @@ static bool DataTypeApplyOpFromText(const char* buf, const char* initial_value_b
else if (op == '/') { if (sscanf(buf, "%f", &arg1f) && arg1f != 0.0f) *v = (int)(arg0i / arg1f); } // Divide
else { if (sscanf(buf, format, &arg1i) == 1) *v = arg1i; } // Assign constant
}
else if (data_type == ImGuiDataType_U32 || data_type == ImGuiDataType_S64 || data_type == ImGuiDataType_U64)
{
// Assign constant
// FIXME: We don't bother handling support for legacy operators since they are a little too crappy. Instead we may implement a proper expression evaluator in the future.
sscanf(buf, format, data_ptr);
}
else if (data_type == ImGuiDataType_Float)
{
// For floats we have to ignore format with precision (e.g. "%.2f") because sscanf doesn't take them in
@ -1663,6 +1695,29 @@ static bool DataTypeApplyOpFromText(const char* buf, const char* initial_value_b
else if (op == '/') { if (arg1f != 0.0f) *v = arg0f / arg1f; } // Divide
else { *v = arg1f; } // Assign constant
}
else if (data_type == ImGuiDataType_U32 || data_type == ImGuiDataType_S64 || data_type == ImGuiDataType_U64)
{
// All other types assign constant
// We don't bother handling support for legacy operators since they are a little too crappy. Instead we will later implement a proper expression evaluator in the future.
sscanf(buf, format, data_ptr);
}
else
{
// Small types need a 32-bit buffer to receive the result from scanf()
int v32;
sscanf(buf, format, &v32);
if (data_type == ImGuiDataType_S8)
*(ImS8*)data_ptr = (ImS8)ImClamp(v32, (int)IM_S8_MIN, (int)IM_S8_MAX);
else if (data_type == ImGuiDataType_U8)
*(ImU8*)data_ptr = (ImU8)ImClamp(v32, (int)IM_U8_MIN, (int)IM_U8_MAX);
else if (data_type == ImGuiDataType_S16)
*(ImS16*)data_ptr = (ImS16)ImClamp(v32, (int)IM_S16_MIN, (int)IM_S16_MAX);
else if (data_type == ImGuiDataType_U16)
*(ImU16*)data_ptr = (ImU16)ImClamp(v32, (int)IM_U16_MIN, (int)IM_U16_MAX);
else
IM_ASSERT(0);
}
return memcmp(data_backup, data_ptr, GDataTypeInfo[data_type].Size) != 0;
}
@ -1845,6 +1900,10 @@ bool ImGui::DragBehavior(ImGuiID id, ImGuiDataType data_type, void* v, float v_s
switch (data_type)
{
case ImGuiDataType_S8: { ImS32 v32 = (ImS32)*(ImS8*)v; bool r = DragBehaviorT<ImS32, ImS32, float >(ImGuiDataType_S32, &v32, v_speed, v_min ? *(const ImS8*) v_min : IM_S8_MIN, v_max ? *(const ImS8*)v_max : IM_S8_MAX, format, power, flags); if (r) *(ImS8*)v = (ImS8)v32; return r; }
case ImGuiDataType_U8: { ImU32 v32 = (ImU32)*(ImU8*)v; bool r = DragBehaviorT<ImU32, ImS32, float >(ImGuiDataType_U32, &v32, v_speed, v_min ? *(const ImU8*) v_min : IM_U8_MIN, v_max ? *(const ImU8*)v_max : IM_U8_MAX, format, power, flags); if (r) *(ImU8*)v = (ImU8)v32; return r; }
case ImGuiDataType_S16: { ImS32 v32 = (ImS32)*(ImS16*)v; bool r = DragBehaviorT<ImS32, ImS32, float >(ImGuiDataType_S32, &v32, v_speed, v_min ? *(const ImS16*)v_min : IM_S16_MIN, v_max ? *(const ImS16*)v_max : IM_S16_MAX, format, power, flags); if (r) *(ImS16*)v = (ImS16)v32; return r; }
case ImGuiDataType_U16: { ImU32 v32 = (ImU32)*(ImU16*)v; bool r = DragBehaviorT<ImU32, ImS32, float >(ImGuiDataType_U32, &v32, v_speed, v_min ? *(const ImU16*)v_min : IM_U16_MIN, v_max ? *(const ImU16*)v_max : IM_U16_MAX, format, power, flags); if (r) *(ImU16*)v = (ImU16)v32; return r; }
case ImGuiDataType_S32: return DragBehaviorT<ImS32, ImS32, float >(data_type, (ImS32*)v, v_speed, v_min ? *(const ImS32* )v_min : IM_S32_MIN, v_max ? *(const ImS32* )v_max : IM_S32_MAX, format, power, flags);
case ImGuiDataType_U32: return DragBehaviorT<ImU32, ImS32, float >(data_type, (ImU32*)v, v_speed, v_min ? *(const ImU32* )v_min : IM_U32_MIN, v_max ? *(const ImU32* )v_max : IM_U32_MAX, format, power, flags);
case ImGuiDataType_S64: return DragBehaviorT<ImS64, ImS64, double>(data_type, (ImS64*)v, v_speed, v_min ? *(const ImS64* )v_min : IM_S64_MIN, v_max ? *(const ImS64* )v_max : IM_S64_MAX, format, power, flags);
@ -2269,6 +2328,10 @@ bool ImGui::SliderBehavior(const ImRect& bb, ImGuiID id, ImGuiDataType data_type
{
switch (data_type)
{
case ImGuiDataType_S8: { ImS32 v32 = (ImS32)*(ImS8*)v; bool r = SliderBehaviorT<ImS32, ImS32, float >(bb, id, ImGuiDataType_S32, &v32, *(const ImS8*)v_min, *(const ImS8*)v_max, format, power, flags, out_grab_bb); if (r) *(ImS8*)v = (ImS8)v32; return r; }
case ImGuiDataType_U8: { ImU32 v32 = (ImU32)*(ImU8*)v; bool r = SliderBehaviorT<ImU32, ImS32, float >(bb, id, ImGuiDataType_U32, &v32, *(const ImU8*)v_min, *(const ImU8*)v_max, format, power, flags, out_grab_bb); if (r) *(ImU8*)v = (ImU8)v32; return r; }
case ImGuiDataType_S16: { ImS32 v32 = (ImS32)*(ImS16*)v; bool r = SliderBehaviorT<ImS32, ImS32, float >(bb, id, ImGuiDataType_S32, &v32, *(const ImS16*)v_min, *(const ImS16*)v_max, format, power, flags, out_grab_bb); if (r) *(ImS16*)v = (ImS16)v32; return r; }
case ImGuiDataType_U16: { ImU32 v32 = (ImU32)*(ImU16*)v; bool r = SliderBehaviorT<ImU32, ImS32, float >(bb, id, ImGuiDataType_U32, &v32, *(const ImU16*)v_min, *(const ImU16*)v_max, format, power, flags, out_grab_bb); if (r) *(ImU16*)v = (ImU16)v32; return r; }
case ImGuiDataType_S32:
IM_ASSERT(*(const ImS32*)v_min >= IM_S32_MIN/2 && *(const ImS32*)v_max <= IM_S32_MAX/2);
return SliderBehaviorT<ImS32, ImS32, float >(bb, id, data_type, (ImS32*)v, *(const ImS32*)v_min, *(const ImS32*)v_max, format, power, flags, out_grab_bb);

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