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https://github.com/ocornut/imgui.git
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InputInt() doesn't cast to float, fix handling lost of precision with large integer. Added primitives to support more data types.
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ocornut
parent
ebd25cf1a3
commit
f0f2afa87d
135
imgui.cpp
135
imgui.cpp
@ -389,7 +389,6 @@
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- input text: add ImGuiInputTextFlags_EnterToApply? (off #218)
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- input text multi-line: way to dynamically grow the buffer without forcing the user to initially allocate for worse case (follow up on #200)
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- input text multi-line: line numbers? status bar? (follow up on #200)
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!- input number: large int not reliably supported because of int<>float conversions.
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- input number: optional range min/max for Input*() functions
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- input number: holding [-]/[+] buttons could increase the step speed non-linearly (or user-controlled)
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- input number: use mouse wheel to step up/down
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@ -5829,9 +5828,57 @@ ImGuiID ImGui::GetID(const void* ptr_id)
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return GImGui->CurrentWindow->GetID(ptr_id);
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}
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enum ImGuiDataType
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{
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ImGuiDataType_Int,
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ImGuiDataType_Float
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};
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enum ImGuiDataTypeOp
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{
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ImGuiDataTypeOp_Add,
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ImGuiDataTypeOp_Sub
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};
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static inline void DataTypeFormat(ImGuiDataType data_type, void* data_ptr, int decimal_precision, char* buf, int buf_size)
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{
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if (data_type == ImGuiDataType_Int)
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{
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if (decimal_precision < 0)
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ImFormatString(buf, buf_size, "%d", *(int*)data_ptr);
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else
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ImFormatString(buf, buf_size, "%.*d", decimal_precision, *(int*)data_ptr);
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}
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else if (data_type == ImGuiDataType_Float)
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{
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if (decimal_precision < 0)
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ImFormatString(buf, buf_size, "%f", *(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?
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else
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ImFormatString(buf, buf_size, "%.*f", decimal_precision, *(float*)data_ptr);
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}
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}
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static void DataTypeApplyOp(ImGuiDataType data_type, ImGuiDataTypeOp op, void* value1, const void* value2)// Store into value1
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{
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if (data_type == ImGuiDataType_Int)
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{
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if (op == ImGuiDataTypeOp_Add)
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*(int*)value1 = *(int*)value1 + *(const int*)value2;
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else if (op == ImGuiDataTypeOp_Sub)
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*(int*)value1 = *(int*)value1 - *(const int*)value2;
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}
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else if (data_type == ImGuiDataType_Float)
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{
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if (op == ImGuiDataTypeOp_Add)
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*(float*)value1 = *(float*)value1 + *(const float*)value2;
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else if (op == ImGuiDataTypeOp_Sub)
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*(float*)value1 = *(float*)value1 - *(const float*)value2;
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}
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}
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// User can input math operators (e.g. +100) to edit a numerical values.
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// NB: only call right after InputText because we are using its InitialValue storage
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static void InputTextApplyArithmeticOp(const char* buf, float *v)
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static void DataTypeApplyOpFromText(const char* buf, const char* initial_value_buf, ImGuiDataType data_type, void* data_ptr)
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{
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while (ImCharIsSpace(*buf))
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buf++;
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@ -5852,27 +5899,38 @@ static void InputTextApplyArithmeticOp(const char* buf, float *v)
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if (!buf[0])
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return;
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float ref_v = *v;
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if (op)
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if (sscanf(GImGui->InputTextState.InitialText.begin(), "%f", &ref_v) < 1)
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return;
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float op_v = 0.0f;
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if (sscanf(buf, "%f", &op_v) < 1)
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return;
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if (op == '+')
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*v = ref_v + op_v; // add (uses "+-" to substract)
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else if (op == '*')
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*v = ref_v * op_v; // multiply
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else if (op == '/')
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if (data_type == ImGuiDataType_Int)
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{
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if (op_v == 0.0f) // divide
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int* v = (int*)data_ptr;
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int ref_v = *v;
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if (op && sscanf(initial_value_buf, "%d", &ref_v) < 1)
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return;
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// Store operand in a double so we can store a big integer (e.g. 2000000003) reliably as well as fractional value for multipliers (*1.1)
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double op_v = 0.0f;
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if (sscanf(buf, "%lf", &op_v) < 1)
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return;
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*v = ref_v / op_v;
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if (op == '+') { *v = (int)(ref_v + op_v); } // Add (use "+-" to subtract)
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else if (op == '*') { *v = (int)(ref_v * op_v); } // Multiply
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else if (op == '/') { if (op_v != 0.0f) *v = (int)(ref_v / op_v); } // Divide
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else { *v = (int)op_v; } // Assign constant
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}
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else if (data_type == ImGuiDataType_Float)
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{
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float* v = (float*)data_ptr;
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float ref_v = *v;
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if (op && sscanf(initial_value_buf, "%f", &ref_v) < 1)
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return;
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float op_v = 0.0f;
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if (sscanf(buf, "%f", &op_v) < 1)
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return;
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if (op == '+') { *v = ref_v + op_v; } // Add (use "+-" to subtract)
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else if (op == '*') { *v = ref_v * op_v; } // Multiply
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else if (op == '/') { if (op_v != 0.0f) *v = ref_v / op_v; } // Divide
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else { *v = op_v; } // Assign constant
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}
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else
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*v = op_v; // Constant
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}
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// Create text input in place of a slider (when CTRL+Clicking on slider)
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@ -5904,9 +5962,7 @@ static bool InputFloatReplaceWidget(const ImRect& aabb, const char* label, float
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g.ScalarAsInputTextId = 0;
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}
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if (value_changed)
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{
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InputTextApplyArithmeticOp(text_buf, v);
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}
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DataTypeApplyOpFromText(text_buf, GImGui->InputTextState.InitialText.begin(), ImGuiDataType_Float, v);
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return value_changed;
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}
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@ -7608,7 +7664,7 @@ bool ImGui::InputTextMultiline(const char* label, char* buf, size_t buf_size, co
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return ret;
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}
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bool ImGui::InputFloat(const char* label, float *v, float step, float step_fast, int decimal_precision, ImGuiInputTextFlags extra_flags)
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static bool InputScalarEx(const char* label, ImGuiDataType data_type, void* data_ptr, void* step_ptr, void* step_fast_ptr, int decimal_precision, ImGuiInputTextFlags extra_flags)
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{
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ImGuiState& g = *GImGui;
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ImGuiWindow* window = GetCurrentWindow();
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@ -7617,42 +7673,40 @@ bool ImGui::InputFloat(const char* label, float *v, float step, float step_fast,
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const ImGuiStyle& style = g.Style;
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const float w = ImGui::CalcItemWidth();
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const ImVec2 label_size = CalcTextSize(label, NULL, true);
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const ImVec2 label_size = ImGui::CalcTextSize(label, NULL, true);
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const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, label_size.y) + style.FramePadding*2.0f);
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ImGui::BeginGroup();
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ImGui::PushID(label);
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const ImVec2 button_sz = ImVec2(g.FontSize, g.FontSize) + style.FramePadding * 2;
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if (step > 0.0f)
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if (step_ptr)
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ImGui::PushItemWidth(ImMax(1.0f, w - (button_sz.x + style.ItemInnerSpacing.x)*2));
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char buf[64];
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if (decimal_precision < 0)
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ImFormatString(buf, IM_ARRAYSIZE(buf), "%f", *v); // Ideally we'd have a minimum decimal precision of 1 to visually denote that it is a float, while hiding non-significant digits?
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else
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ImFormatString(buf, IM_ARRAYSIZE(buf), "%.*f", decimal_precision, *v);
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DataTypeFormat(data_type, data_ptr, decimal_precision, buf, IM_ARRAYSIZE(buf));
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bool value_changed = false;
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const ImGuiInputTextFlags flags = extra_flags | (ImGuiInputTextFlags_CharsDecimal|ImGuiInputTextFlags_AutoSelectAll);
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if (ImGui::InputText("", buf, IM_ARRAYSIZE(buf), flags))
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{
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InputTextApplyArithmeticOp(buf, v);
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DataTypeApplyOpFromText(buf, GImGui->InputTextState.InitialText.begin(), data_type, data_ptr);
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value_changed = true;
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}
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// Step buttons
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if (step > 0.0f)
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if (step_ptr)
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{
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ImGui::PopItemWidth();
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ImGui::SameLine(0, style.ItemInnerSpacing.x);
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if (ButtonEx("-", button_sz, ImGuiButtonFlags_Repeat | ImGuiButtonFlags_DontClosePopups))
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{
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*v -= g.IO.KeyCtrl && step_fast > 0.0f ? step_fast : step;
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DataTypeApplyOp(data_type, ImGuiDataTypeOp_Sub, data_ptr, g.IO.KeyCtrl && step_fast_ptr ? step_fast_ptr : step_ptr);
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value_changed = true;
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}
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ImGui::SameLine(0, style.ItemInnerSpacing.x);
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if (ButtonEx("+", button_sz, ImGuiButtonFlags_Repeat | ImGuiButtonFlags_DontClosePopups))
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{
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*v += g.IO.KeyCtrl && step_fast > 0.0f ? step_fast : step;
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DataTypeApplyOp(data_type, ImGuiDataTypeOp_Add, data_ptr, g.IO.KeyCtrl && step_fast_ptr ? step_fast_ptr : step_ptr);
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value_changed = true;
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}
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}
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@ -7669,13 +7723,14 @@ bool ImGui::InputFloat(const char* label, float *v, float step, float step_fast,
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return value_changed;
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}
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bool ImGui::InputInt(const char* label, int *v, int step, int step_fast, ImGuiInputTextFlags extra_flags)
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bool ImGui::InputFloat(const char* label, float* v, float step, float step_fast, int decimal_precision, ImGuiInputTextFlags extra_flags)
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{
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float f = (float)*v;
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const bool value_changed = ImGui::InputFloat(label, &f, (float)step, (float)step_fast, 0, extra_flags);
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if (value_changed)
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*v = (int)f;
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return value_changed;
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return InputScalarEx(label, ImGuiDataType_Float, (void*)v, (void*)(step>0.0f ? &step : NULL), (void*)(step_fast>0.0f ? &step_fast : NULL), decimal_precision, extra_flags);
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}
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bool ImGui::InputInt(const char* label, int* v, int step, int step_fast, ImGuiInputTextFlags extra_flags)
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{
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return InputScalarEx(label, ImGuiDataType_Int, (void*)v, (void*)(step>0.0f ? &step : NULL), (void*)(step_fast>0.0f ? &step_fast : NULL), 0, extra_flags);
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}
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static bool InputFloatN(const char* label, float* v, int components, int decimal_precision, ImGuiInputTextFlags extra_flags)
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