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DragFloat/SliderFloat internal InputScalar trim leading/trailing spaces emitted from the format string when presenting an edit box to the user. (#648)

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Follow up to 6881d065b8
This commit is contained in:
omar 2018-05-03 11:59:20 +02:00
parent a62f195e83
commit 10e3f17235
2 changed files with 18 additions and 0 deletions
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17
imgui.cpp
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@ -1072,6 +1072,22 @@ const char* ImStristr(const char* haystack, const char* haystack_end, const char
return NULL;
}
// Trim str by offsetting contents when there's leading data + writing a \0 at the trailing position. We use this in situation where the cost is negligible.
void ImStrTrimBlanks(char* buf)
{
char* p = buf;
while (p[0] == ' ' || p[0] == '\t') // Leading blanks
p++;
char* p_start = p;
while (*p != 0) // Find end of string
p++;
while (p > p_start && (p[-1] == ' ' || p[-1] == '\t')) // Trailing blanks
p--;
if (p_start != buf) // Copy memory if we had leading blanks
memmove(buf, p_start, p - p_start);
buf[p - p_start] = 0; // Zero terminate
}
static const char* ImAtoi(const char* src, int* output)
{
int negative = 0;
@ -8594,6 +8610,7 @@ bool ImGui::InputScalarAsWidgetReplacement(const ImRect& bb, ImGuiID id, const c
char data_buf[32];
format = ParseFormatTrimDecorations(format, fmt_buf, IM_ARRAYSIZE(fmt_buf));
DataTypeFormatString(data_buf, IM_ARRAYSIZE(data_buf), data_type, data_ptr, format);
ImStrTrimBlanks(data_buf);
ImGuiInputTextFlags flags = ImGuiInputTextFlags_AutoSelectAll | ((data_type == ImGuiDataType_Float || data_type == ImGuiDataType_Double) ? ImGuiInputTextFlags_CharsScientific : ImGuiInputTextFlags_CharsDecimal);
bool value_changed = InputTextEx(label, data_buf, IM_ARRAYSIZE(data_buf), bb.GetSize(), flags);
if (g.ScalarAsInputTextId == 0) // First frame we started displaying the InputText widget

1
imgui_internal.h
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@ -118,6 +118,7 @@ IMGUI_API const char* ImStrchrRange(const char* str_begin, const char* str_end
IMGUI_API int ImStrlenW(const ImWchar* str);
IMGUI_API const ImWchar*ImStrbolW(const ImWchar* buf_mid_line, const ImWchar* buf_begin); // Find beginning-of-line
IMGUI_API const char* ImStristr(const char* haystack, const char* haystack_end, const char* needle, const char* needle_end);
IMGUI_API void ImStrTrimBlanks(char* str);
IMGUI_API int ImFormatString(char* buf, size_t buf_size, const char* fmt, ...) IM_FMTARGS(3);
IMGUI_API int ImFormatStringV(char* buf, size_t buf_size, const char* fmt, va_list args) IM_FMTLIST(3);