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ImStrv: standardized code doing format copy, optimized ImStrStr

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ocornut 2021-05-25 14:08:20 +02:00 committed by ocornut
parent 2e0aa8299d
commit a1874dc3ea
2 changed files with 57 additions and 33 deletions
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21
imgui.cpp
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@ -2062,22 +2062,19 @@ const char* ImStristr(const char* haystack, const char* haystack_end, const char
return NULL;
}
// FIXME-IMSTR: probably unneeded.
const char* ImStrstr(ImStrv haystack, ImStrv needle)
{
const char un0 = (char)*needle.Begin;
while ((!haystack.End && *haystack.Begin) || (haystack.End && haystack.Begin < haystack.End))
const char* p = haystack.Begin;
const size_t needle_len_m1 = needle.length() - 1;
while (true)
{
if (*haystack.Begin == un0)
{
const char* b = needle.Begin + 1;
for (const char* a = haystack.Begin + 1; b < needle.End; a++, b++)
if (*a != *b)
break;
if (b == needle.End)
return haystack.Begin;
}
haystack.Begin++;
p = (const char*)memchr(p, un0, haystack.End - p);
if (p == NULL || (size_t)(haystack.End - p) - 1u < needle_len_m1)
return NULL;
if (needle_len_m1 == 0 || memcmp(p + 1, needle.Begin + 1, needle_len_m1) == 0)
return p;
p += 1;
}
return NULL;
}

69
imgui_widgets.cpp
View File

@ -2603,14 +2603,20 @@ bool ImGui::DragScalar(ImStrv label, ImGuiDataType data_type, void* p_data, floa
return false;
// FIXME-IMSTR
char format_0[64]; // format may not end with \0
const char* format = format_0;
IM_ASSERT(format_p.End - format_p.Begin < IM_ARRAYSIZE(format_0));
ImStrncpy(format_0, format_p, IM_ARRAYSIZE(format_0));
// Default format string when passing NULL
const char* format;
char format_buf[64];
if (!format_p)
{
// Default format string when passing NULL
format = DataTypeGetInfo(data_type)->PrintFmt;
}
else
{
// Copy format string (format may not be zero-terminated)
format = format_buf;
IM_ASSERT(format_p.End - format_p.Begin < IM_ARRAYSIZE(format_buf));
ImStrncpy(format_buf, format_p, IM_ARRAYSIZE(format_buf));
}
const bool hovered = ItemHoverable(frame_bb, id, g.LastItemData.ItemFlags);
bool temp_input_is_active = temp_input_allowed && TempInputIsActive(id);
@ -3211,13 +3217,20 @@ bool ImGui::SliderScalar(ImStrv label, ImGuiDataType data_type, void* p_data, co
return false;
// FIXME-IMSTR
char format_0[64]; // format may not end with \0
const char* format = format_0;
IM_ASSERT(format_p.End - format_p.Begin < IM_ARRAYSIZE(format_0));
// Default format string when passing NULL
const char* format;
char format_buf[64];
if (!format_p)
{
// Default format string when passing NULL
format = DataTypeGetInfo(data_type)->PrintFmt;
}
else
{
// Copy format string (format may not be zero-terminated)
format = format_buf;
IM_ASSERT(format_p.End - format_p.Begin < IM_ARRAYSIZE(format_buf));
ImStrncpy(format_buf, format_p, IM_ARRAYSIZE(format_buf));
}
const bool hovered = ItemHoverable(frame_bb, id, g.LastItemData.ItemFlags);
bool temp_input_is_active = temp_input_allowed && TempInputIsActive(id);
@ -3383,13 +3396,20 @@ bool ImGui::VSliderScalar(ImStrv label, const ImVec2& size, ImGuiDataType data_t
return false;
// FIXME-IMSTR
char format_0[64]; // format may not end with \0
const char* format = format_0;
IM_ASSERT(format_p.End - format_p.Begin < IM_ARRAYSIZE(format_0));
// Default format string when passing NULL
const char* format;
char format_buf[64];
if (!format_p)
{
// Default format string when passing NULL
format = DataTypeGetInfo(data_type)->PrintFmt;
}
else
{
// Copy format string (format may not be zero-terminated)
format = format_buf;
IM_ASSERT(format_p.End - format_p.Begin < IM_ARRAYSIZE(format_buf));
ImStrncpy(format_buf, format_p, IM_ARRAYSIZE(format_buf));
}
const bool hovered = ItemHoverable(frame_bb, id, g.LastItemData.ItemFlags);
const bool clicked = hovered && IsMouseClicked(0, ImGuiInputFlags_None, id);
@ -3675,13 +3695,20 @@ bool ImGui::InputScalar(ImStrv label, ImGuiDataType data_type, void* p_data, con
IM_ASSERT((flags & ImGuiInputTextFlags_EnterReturnsTrue) == 0); // Not supported by InputScalar(). Please open an issue if you this would be useful to you. Otherwise use IsItemDeactivatedAfterEdit()!
// FIXME-IMSTR
char format_0[64]; // format may not end with \0
const char* format = format_0;
IM_ASSERT(format_p.End - format_p.Begin < IM_ARRAYSIZE(format_0));
ImStrncpy(format_0, format_p, IM_ARRAYSIZE(format_0));
const char* format;
char format_buf[64];
if (!format_p)
{
// Default format string when passing NULL
format = DataTypeGetInfo(data_type)->PrintFmt;
}
else
{
// Copy format string (format may not be zero-terminated)
format = format_buf;
IM_ASSERT(format_p.End - format_p.Begin < IM_ARRAYSIZE(format_buf));
ImStrncpy(format_buf, format_p, IM_ARRAYSIZE(format_buf));
}
void* p_data_default = (g.NextItemData.HasFlags & ImGuiNextItemDataFlags_HasRefVal) ? &g.NextItemData.RefVal : &g.DataTypeZeroValue;