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DragFloat, DragScalar: Fixed ImGuiSliderFlags_ClampOnInput not being honored in the special case where v_min == v_max. (#3361)

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docking
ocornut 4 years ago
parent 5dc5610ad5
commit 4c201994d4
4 changed files with 53 additions and 16 deletions
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3
docs/CHANGELOG.txt
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@ -37,6 +37,9 @@ HOW TO UPDATE?
Other Changes:
- DragFloat, DragScalar: Fixed ImGuiSliderFlags_ClampOnInput not being honored in the special case
where v_min == v_max. (#3361)
-----------------------------------------------------------------------
VERSION 1.78 (Released 2020-08-18)

5
examples/example_win32_directx11/main.cpp
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@ -116,6 +116,11 @@ int main(int, char**)
ImGui::Checkbox("Another Window", &show_another_window);
ImGui::SliderFloat("float", &f, 0.0f, 1.0f); // Edit 1 float using a slider from 0.0f to 1.0f
static float f2 = 0.0f;
ImGui::DragFloat("f2 limit", &f2, 1.0f, 0.0f, 100.0f, NULL, ImGuiSliderFlags_ClampOnInput);
ImGui::DragFloat("f2", &f2, 1.0f, 0.0f, 0.0f, NULL, ImGuiSliderFlags_ClampOnInput);
ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats representing a color
if (ImGui::Button("Button")) // Buttons return true when clicked (most widgets return true when edited/activated)

3
imgui_internal.h
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@ -1997,8 +1997,9 @@ namespace ImGui
// Data type helpers
IMGUI_API const ImGuiDataTypeInfo* DataTypeGetInfo(ImGuiDataType data_type);
IMGUI_API int DataTypeFormatString(char* buf, int buf_size, ImGuiDataType data_type, const void* p_data, const char* format);
IMGUI_API void DataTypeApplyOp(ImGuiDataType data_type, int op, void* output, void* arg_1, const void* arg_2);
IMGUI_API void DataTypeApplyOp(ImGuiDataType data_type, int op, void* output, const void* arg_1, const void* arg_2);
IMGUI_API bool DataTypeApplyOpFromText(const char* buf, const char* initial_value_buf, ImGuiDataType data_type, void* p_data, const char* format);
IMGUI_API int DataTypeCompare(ImGuiDataType data_type, const void* arg_1, const void* arg_2);
IMGUI_API bool DataTypeClamp(ImGuiDataType data_type, void* p_data, const void* p_min, const void* p_max);
// InputText

56
imgui_widgets.cpp
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@ -1758,7 +1758,7 @@ int ImGui::DataTypeFormatString(char* buf, int buf_size, ImGuiDataType data_type
return 0;
}
void ImGui::DataTypeApplyOp(ImGuiDataType data_type, int op, void* output, void* arg1, const void* arg2)
void ImGui::DataTypeApplyOp(ImGuiDataType data_type, int op, void* output, const void* arg1, const void* arg2)
{
IM_ASSERT(op == '+' || op == '-');
switch (data_type)
@ -1910,9 +1910,37 @@ bool ImGui::DataTypeApplyOpFromText(const char* buf, const char* initial_value_b
}
template<typename T>
static bool ClampBehaviorT(T* v, const T* v_min, const T* v_max)
static int DataTypeCompareT(const T* lhs, const T* rhs)
{
// Clamp, both sides are optional
if (*lhs < *rhs) return -1;
if (*lhs > *rhs) return +1;
return 0;
}
int ImGui::DataTypeCompare(ImGuiDataType data_type, const void* arg_1, const void* arg_2)
{
switch (data_type)
{
case ImGuiDataType_S8: return DataTypeCompareT<ImS8 >((const ImS8* )arg_1, (const ImS8* )arg_2);
case ImGuiDataType_U8: return DataTypeCompareT<ImU8 >((const ImU8* )arg_1, (const ImU8* )arg_2);
case ImGuiDataType_S16: return DataTypeCompareT<ImS16 >((const ImS16* )arg_1, (const ImS16* )arg_2);
case ImGuiDataType_U16: return DataTypeCompareT<ImU16 >((const ImU16* )arg_1, (const ImU16* )arg_2);
case ImGuiDataType_S32: return DataTypeCompareT<ImS32 >((const ImS32* )arg_1, (const ImS32* )arg_2);
case ImGuiDataType_U32: return DataTypeCompareT<ImU32 >((const ImU32* )arg_1, (const ImU32* )arg_2);
case ImGuiDataType_S64: return DataTypeCompareT<ImS64 >((const ImS64* )arg_1, (const ImS64* )arg_2);
case ImGuiDataType_U64: return DataTypeCompareT<ImU64 >((const ImU64* )arg_1, (const ImU64* )arg_2);
case ImGuiDataType_Float: return DataTypeCompareT<float >((const float* )arg_1, (const float* )arg_2);
case ImGuiDataType_Double: return DataTypeCompareT<double>((const double*)arg_1, (const double*)arg_2);
case ImGuiDataType_COUNT: break;
}
IM_ASSERT(0);
return 0;
}
template<typename T>
static bool DataTypeClampT(T* v, const T* v_min, const T* v_max)
{
// Clamp, both sides are optional, return true if modified
if (v_min && *v < *v_min) { *v = *v_min; return true; }
if (v_max && *v > * v_max) { *v = *v_max; return true; }
return false;
@ -1922,16 +1950,16 @@ bool ImGui::DataTypeClamp(ImGuiDataType data_type, void* p_data, const void* p_m
{
switch (data_type)
{
case ImGuiDataType_S8: return ClampBehaviorT<ImS8 >((ImS8* )p_data, (const ImS8* )p_min, (const ImS8* )p_max);
case ImGuiDataType_U8: return ClampBehaviorT<ImU8 >((ImU8* )p_data, (const ImU8* )p_min, (const ImU8* )p_max);
case ImGuiDataType_S16: return ClampBehaviorT<ImS16 >((ImS16* )p_data, (const ImS16* )p_min, (const ImS16* )p_max);
case ImGuiDataType_U16: return ClampBehaviorT<ImU16 >((ImU16* )p_data, (const ImU16* )p_min, (const ImU16* )p_max);
case ImGuiDataType_S32: return ClampBehaviorT<ImS32 >((ImS32* )p_data, (const ImS32* )p_min, (const ImS32* )p_max);
case ImGuiDataType_U32: return ClampBehaviorT<ImU32 >((ImU32* )p_data, (const ImU32* )p_min, (const ImU32* )p_max);
case ImGuiDataType_S64: return ClampBehaviorT<ImS64 >((ImS64* )p_data, (const ImS64* )p_min, (const ImS64* )p_max);
case ImGuiDataType_U64: return ClampBehaviorT<ImU64 >((ImU64* )p_data, (const ImU64* )p_min, (const ImU64* )p_max);
case ImGuiDataType_Float: return ClampBehaviorT<float >((float* )p_data, (const float* )p_min, (const float* )p_max);
case ImGuiDataType_Double: return ClampBehaviorT<double>((double*)p_data, (const double*)p_min, (const double*)p_max);
case ImGuiDataType_S8: return DataTypeClampT<ImS8 >((ImS8* )p_data, (const ImS8* )p_min, (const ImS8* )p_max);
case ImGuiDataType_U8: return DataTypeClampT<ImU8 >((ImU8* )p_data, (const ImU8* )p_min, (const ImU8* )p_max);
case ImGuiDataType_S16: return DataTypeClampT<ImS16 >((ImS16* )p_data, (const ImS16* )p_min, (const ImS16* )p_max);
case ImGuiDataType_U16: return DataTypeClampT<ImU16 >((ImU16* )p_data, (const ImU16* )p_min, (const ImU16* )p_max);
case ImGuiDataType_S32: return DataTypeClampT<ImS32 >((ImS32* )p_data, (const ImS32* )p_min, (const ImS32* )p_max);
case ImGuiDataType_U32: return DataTypeClampT<ImU32 >((ImU32* )p_data, (const ImU32* )p_min, (const ImU32* )p_max);
case ImGuiDataType_S64: return DataTypeClampT<ImS64 >((ImS64* )p_data, (const ImS64* )p_min, (const ImS64* )p_max);
case ImGuiDataType_U64: return DataTypeClampT<ImU64 >((ImU64* )p_data, (const ImU64* )p_min, (const ImU64* )p_max);
case ImGuiDataType_Float: return DataTypeClampT<float >((float* )p_data, (const float* )p_min, (const float* )p_max);
case ImGuiDataType_Double: return DataTypeClampT<double>((double*)p_data, (const double*)p_min, (const double*)p_max);
case ImGuiDataType_COUNT: break;
}
IM_ASSERT(0);
@ -2201,7 +2229,7 @@ bool ImGui::DragScalar(const char* label, ImGuiDataType data_type, void* p_data,
if (temp_input_is_active)
{
// Only clamp CTRL+Click input when ImGuiSliderFlags_ClampInput is set
const bool is_clamp_input = (flags & ImGuiSliderFlags_ClampOnInput) != 0;
const bool is_clamp_input = (flags & ImGuiSliderFlags_ClampOnInput) != 0 && (p_min == NULL || p_max == NULL || DataTypeCompare(data_type, p_min, p_max) < 0);
return TempInputScalar(frame_bb, id, label, data_type, p_data, format, is_clamp_input ? p_min : NULL, is_clamp_input ? p_max : NULL);
}

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