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DragFloat/SliderFloat internal InputScalar relies on the user supplied format string to format and parse value. (#648)

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The trailing text after the format will be displayed in the InputText but not affect back parsing. Ideally we can try to strip it later.
features/potocpav-newer-lines-2
omar ago%!(EXTRA string=8 years)
parent 429f48bb4f
commit d7e24416dd
2 changed files with 27 additions and 37 deletions
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  1. 49
      imgui.cpp
  2. 15
      imgui_internal.h

49
imgui.cpp
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@ -748,7 +748,6 @@ static int InputTextCalcTextLenAndLineCount(const char* text_begin,
static ImVec2 InputTextCalcTextSizeW(const ImWchar* text_begin, const ImWchar* text_end, const ImWchar** remaining = NULL, ImVec2* out_offset = NULL, bool stop_on_new_line = false); static ImVec2 InputTextCalcTextSizeW(const ImWchar* text_begin, const ImWchar* text_end, const ImWchar** remaining = NULL, ImVec2* out_offset = NULL, bool stop_on_new_line = false);
static inline int DataTypeFormatString(char* buf, int buf_size, ImGuiDataType data_type, const void* data_ptr, const char* format); static inline int DataTypeFormatString(char* buf, int buf_size, ImGuiDataType data_type, const void* data_ptr, const char* format);
static inline int DataTypeFormatString(char* buf, int buf_size, ImGuiDataType data_type, const void* data_ptr, int decimal_precision);
static void DataTypeApplyOp(ImGuiDataType data_type, int op, void* output, void* arg_1, const void* arg_2); static void DataTypeApplyOp(ImGuiDataType data_type, int op, void* output, void* arg_1, const void* arg_2);
static bool DataTypeApplyOpFromText(const char* buf, const char* initial_value_buf, ImGuiDataType data_type, void* data_ptr, const char* format); static bool DataTypeApplyOpFromText(const char* buf, const char* initial_value_buf, ImGuiDataType data_type, void* data_ptr, const char* format);
@ -8454,30 +8453,6 @@ static inline int DataTypeFormatString(char* buf, int buf_size, ImGuiDataType da
return 0; return 0;
} }
static inline int DataTypeFormatString(char* buf, int buf_size, ImGuiDataType data_type, const void* data_ptr, int decimal_precision)
{
if (decimal_precision < 0)
{
if (data_type == ImGuiDataType_Int)
return ImFormatString(buf, buf_size, "%d", *(const int*)data_ptr);
if (data_type == ImGuiDataType_Float)
return ImFormatString(buf, buf_size, "%f", *(const float*)data_ptr); // Ideally we'd have a minimum decimal precision of 1 to visually denote that it is a float, while hiding non-significant digits?
if (data_type == ImGuiDataType_Double)
return ImFormatString(buf, buf_size, "%f", *(const double*)data_ptr);
}
else
{
if (data_type == ImGuiDataType_Int)
return ImFormatString(buf, buf_size, "%.*d", decimal_precision, *(const int*)data_ptr);
if (data_type == ImGuiDataType_Float)
return ImFormatString(buf, buf_size, "%.*f", decimal_precision, *(const float*)data_ptr);
if (data_type == ImGuiDataType_Double)
return ImFormatString(buf, buf_size, "%.*g", decimal_precision, *(const double*)data_ptr);
}
IM_ASSERT(0);
return 0;
}
static void DataTypeApplyOp(ImGuiDataType data_type, int op, void* output, void* arg1, const void* arg2) static void DataTypeApplyOp(ImGuiDataType data_type, int op, void* output, void* arg1, const void* arg2)
{ {
IM_ASSERT(op == '+' || op == '-'); IM_ASSERT(op == '+' || op == '-');
@ -8582,7 +8557,7 @@ static bool DataTypeApplyOpFromText(const char* buf, const char* initial_value_b
// Create text input in place of a slider (when CTRL+Clicking on slider) // Create text input in place of a slider (when CTRL+Clicking on slider)
// FIXME: Logic is messy and confusing. // FIXME: Logic is messy and confusing.
bool ImGui::InputScalarAsWidgetReplacement(const ImRect& aabb, const char* label, ImGuiDataType data_type, void* data_ptr, ImGuiID id, int decimal_precision) bool ImGui::InputScalarAsWidgetReplacement(const ImRect& bb, ImGuiID id, const char* label, ImGuiDataType data_type, void* data_ptr, const char* format)
{ {
ImGuiContext& g = *GImGui; ImGuiContext& g = *GImGui;
ImGuiWindow* window = GetCurrentWindow(); ImGuiWindow* window = GetCurrentWindow();
@ -8595,9 +8570,10 @@ bool ImGui::InputScalarAsWidgetReplacement(const ImRect& aabb, const char* label
FocusableItemUnregister(window); FocusableItemUnregister(window);
char buf[32]; char buf[32];
DataTypeFormatString(buf, IM_ARRAYSIZE(buf), data_type, data_ptr, decimal_precision); format = ParseFormatSkipLeadingText(format);
DataTypeFormatString(buf, IM_ARRAYSIZE(buf), data_type, data_ptr, format);
ImGuiInputTextFlags flags = ImGuiInputTextFlags_AutoSelectAll | ((data_type == ImGuiDataType_Float || data_type == ImGuiDataType_Double) ? ImGuiInputTextFlags_CharsScientific : ImGuiInputTextFlags_CharsDecimal); ImGuiInputTextFlags flags = ImGuiInputTextFlags_AutoSelectAll | ((data_type == ImGuiDataType_Float || data_type == ImGuiDataType_Double) ? ImGuiInputTextFlags_CharsScientific : ImGuiInputTextFlags_CharsDecimal);
bool text_value_changed = InputTextEx(label, buf, IM_ARRAYSIZE(buf), aabb.GetSize(), flags); bool text_value_changed = InputTextEx(label, buf, IM_ARRAYSIZE(buf), bb.GetSize(), flags);
if (g.ScalarAsInputTextId == 0) // First frame we started displaying the InputText widget if (g.ScalarAsInputTextId == 0) // First frame we started displaying the InputText widget
{ {
IM_ASSERT(g.ActiveId == id); // InputText ID expected to match the Slider ID (else we'd need to store them both, which is also possible) IM_ASSERT(g.ActiveId == id); // InputText ID expected to match the Slider ID (else we'd need to store them both, which is also possible)
@ -8609,6 +8585,19 @@ bool ImGui::InputScalarAsWidgetReplacement(const ImRect& aabb, const char* label
return false; return false;
} }
const char* ImGui::ParseFormatSkipLeadingText(const char* fmt)
{
if (fmt[0] == '%')
return fmt;
while (char c = fmt[0])
{
if (c == '%' && fmt[1] != '%')
return fmt;
fmt++;
}
return fmt;
}
// Parse display precision back from the display format string // Parse display precision back from the display format string
int ImGui::ParseFormatPrecision(const char* fmt, int default_precision) int ImGui::ParseFormatPrecision(const char* fmt, int default_precision)
{ {
@ -8880,7 +8869,7 @@ bool ImGui::SliderFloat(const char* label, float* v, float v_min, float v_max, c
} }
} }
if (start_text_input || (g.ActiveId == id && g.ScalarAsInputTextId == id)) if (start_text_input || (g.ActiveId == id && g.ScalarAsInputTextId == id))
return InputScalarAsWidgetReplacement(frame_bb, label, ImGuiDataType_Float, v, id, decimal_precision); return InputScalarAsWidgetReplacement(frame_bb, id, label, ImGuiDataType_Float, v, format);
// Actual slider behavior + render grab // Actual slider behavior + render grab
ItemSize(total_bb, style.FramePadding.y); ItemSize(total_bb, style.FramePadding.y);
@ -9189,7 +9178,7 @@ bool ImGui::DragFloat(const char* label, float* v, float v_speed, float v_min, f
} }
} }
if (start_text_input || (g.ActiveId == id && g.ScalarAsInputTextId == id)) if (start_text_input || (g.ActiveId == id && g.ScalarAsInputTextId == id))
return InputScalarAsWidgetReplacement(frame_bb, label, ImGuiDataType_Float, v, id, decimal_precision); return InputScalarAsWidgetReplacement(frame_bb, id, label, ImGuiDataType_Float, v, format);
// Actual drag behavior // Actual drag behavior
ItemSize(total_bb, style.FramePadding.y); ItemSize(total_bb, style.FramePadding.y);

15
imgui_internal.h
Unescape View File

@ -1097,18 +1097,18 @@ namespace ImGui
IMGUI_API bool CloseButton(ImGuiID id, const ImVec2& pos, float radius); IMGUI_API bool CloseButton(ImGuiID id, const ImVec2& pos, float radius);
IMGUI_API bool SliderBehavior(const ImRect& frame_bb, ImGuiID id, float* v, float v_min, float v_max, float power, int decimal_precision, ImGuiSliderFlags flags = 0); IMGUI_API bool SliderBehavior(const ImRect& frame_bb, ImGuiID id, float* v, float v_min, float v_max, float power, int decimal_precision, ImGuiSliderFlags flags = 0);
IMGUI_API bool SliderFloatN(const char* label, float* v, int components, float v_min, float v_max, const char* display_format, float power); IMGUI_API bool SliderFloatN(const char* label, float* v, int components, float v_min, float v_max, const char* format, float power);
IMGUI_API bool SliderIntN(const char* label, int* v, int components, int v_min, int v_max, const char* display_format); IMGUI_API bool SliderIntN(const char* label, int* v, int components, int v_min, int v_max, const char* format);
IMGUI_API bool DragBehavior(const ImRect& frame_bb, ImGuiID id, float* v, float v_speed, float v_min, float v_max, int decimal_precision, float power); IMGUI_API bool DragBehavior(const ImRect& frame_bb, ImGuiID id, float* v, float v_speed, float v_min, float v_max, int decimal_precision, float power);
IMGUI_API bool DragFloatN(const char* label, float* v, int components, float v_speed, float v_min, float v_max, const char* display_format, float power); IMGUI_API bool DragFloatN(const char* label, float* v, int components, float v_speed, float v_min, float v_max, const char* format, float power);
IMGUI_API bool DragIntN(const char* label, int* v, int components, float v_speed, int v_min, int v_max, const char* display_format); IMGUI_API bool DragIntN(const char* label, int* v, int components, float v_speed, int v_min, int v_max, const char* format);
IMGUI_API bool InputTextEx(const char* label, char* buf, int buf_size, const ImVec2& size_arg, ImGuiInputTextFlags flags, ImGuiTextEditCallback callback = NULL, void* user_data = NULL); IMGUI_API bool InputTextEx(const char* label, char* buf, int buf_size, const ImVec2& size_arg, ImGuiInputTextFlags flags, ImGuiTextEditCallback callback = NULL, void* user_data = NULL);
IMGUI_API bool InputFloatN(const char* label, float* v, int components, const char* format, ImGuiInputTextFlags extra_flags); IMGUI_API bool InputFloatN(const char* label, float* v, int components, const char* format, ImGuiInputTextFlags extra_flags);
IMGUI_API bool InputIntN(const char* label, int* v, int components, ImGuiInputTextFlags extra_flags); IMGUI_API bool InputIntN(const char* label, int* v, int components, ImGuiInputTextFlags extra_flags);
IMGUI_API bool InputScalarEx(const char* label, ImGuiDataType data_type, void* data_ptr, void* step_ptr, void* step_fast_ptr, const char* scalar_format, ImGuiInputTextFlags extra_flags); IMGUI_API bool InputScalarEx(const char* label, ImGuiDataType data_type, void* data_ptr, void* step_ptr, void* step_fast_ptr, const char* format, ImGuiInputTextFlags extra_flags);
IMGUI_API bool InputScalarAsWidgetReplacement(const ImRect& aabb, const char* label, ImGuiDataType data_type, void* data_ptr, ImGuiID id, int decimal_precision); IMGUI_API bool InputScalarAsWidgetReplacement(const ImRect& bb, ImGuiID id, const char* label, ImGuiDataType data_type, void* data_ptr, const char* format);
IMGUI_API void ColorTooltip(const char* text, const float* col, ImGuiColorEditFlags flags); IMGUI_API void ColorTooltip(const char* text, const float* col, ImGuiColorEditFlags flags);
IMGUI_API void ColorEditOptionsPopup(const float* col, ImGuiColorEditFlags flags); IMGUI_API void ColorEditOptionsPopup(const float* col, ImGuiColorEditFlags flags);
@ -1119,7 +1119,8 @@ namespace ImGui
IMGUI_API void PlotEx(ImGuiPlotType plot_type, const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 graph_size); IMGUI_API void PlotEx(ImGuiPlotType plot_type, const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 graph_size);
IMGUI_API int ParseFormatPrecision(const char* fmt, int default_value); IMGUI_API const char* ParseFormatSkipLeadingText(const char* format);
IMGUI_API int ParseFormatPrecision(const char* format, int default_value);
IMGUI_API float RoundScalar(float value, int decimal_precision); IMGUI_API float RoundScalar(float value, int decimal_precision);
// Shade functions (write over already created vertices) // Shade functions (write over already created vertices)

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