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DragFloat(), SliderFloat(), InputFloat(): fixed cases of erroneously returning true repeatedly after a text input modification (#564)

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This commit is contained in:
ocornut 2016-03-25 21:53:59 +01:00
parent 5b8aa0dc84
commit aecf5d12e6
1 changed files with 32 additions and 29 deletions
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61
imgui.cpp
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@ -652,7 +652,7 @@ static ImVec2 InputTextCalcTextSizeW(const ImWchar* text_begin, const
static inline void DataTypeFormatString(ImGuiDataType data_type, void* data_ptr, const char* display_format, char* buf, int buf_size);
static inline void DataTypeFormatString(ImGuiDataType data_type, void* data_ptr, int decimal_precision, char* buf, int buf_size);
static void DataTypeApplyOp(ImGuiDataType data_type, int op, void* value1, const void* value2);
static void DataTypeApplyOpFromText(const char* buf, const char* initial_value_buf, ImGuiDataType data_type, void* data_ptr, const char* scalar_format);
static bool DataTypeApplyOpFromText(const char* buf, const char* initial_value_buf, ImGuiDataType data_type, void* data_ptr, const char* scalar_format);
//-----------------------------------------------------------------------------
// Platform dependent default implementations
@ -5931,7 +5931,7 @@ static void DataTypeApplyOp(ImGuiDataType data_type, int op, void* value1, const
}
// User can input math operators (e.g. +100) to edit a numerical values.
static void DataTypeApplyOpFromText(const char* buf, const char* initial_value_buf, ImGuiDataType data_type, void* data_ptr, const char* scalar_format)
static bool DataTypeApplyOpFromText(const char* buf, const char* initial_value_buf, ImGuiDataType data_type, void* data_ptr, const char* scalar_format)
{
while (ImCharIsSpace(*buf))
buf++;
@ -5950,41 +5950,47 @@ static void DataTypeApplyOpFromText(const char* buf, const char* initial_value_b
op = 0;
}
if (!buf[0])
return;
return false;
if (data_type == ImGuiDataType_Int)
{
if (!scalar_format)
scalar_format = "%d";
int* v = (int*)data_ptr;
int ref_v = *v;
if (op && sscanf(initial_value_buf, scalar_format, &ref_v) < 1)
return;
const int old_v = *v;
int arg0 = *v;
if (op && sscanf(initial_value_buf, scalar_format, &arg0) < 1)
return false;
// Store operand in a float so we can use fractional value for multipliers (*1.1), but constant always parsed as integer so we can fit big integers (e.g. 2000000003) past float precision
float op_v = 0.0f;
if (op == '+') { if (sscanf(buf, "%f", &op_v) == 1) *v = (int)(ref_v + op_v); } // Add (use "+-" to subtract)
else if (op == '*') { if (sscanf(buf, "%f", &op_v) == 1) *v = (int)(ref_v * op_v); } // Multiply
else if (op == '/') { if (sscanf(buf, "%f", &op_v) == 1 && op_v != 0.0f) *v = (int)(ref_v / op_v); }// Divide
else { if (sscanf(buf, scalar_format, &ref_v) == 1) *v = ref_v; } // Assign constant
float arg1 = 0.0f;
if (op == '+') { if (sscanf(buf, "%f", &arg1) == 1) *v = (int)(arg0 + arg1); } // Add (use "+-" to subtract)
else if (op == '*') { if (sscanf(buf, "%f", &arg1) == 1) *v = (int)(arg0 * arg1); } // Multiply
else if (op == '/') { if (sscanf(buf, "%f", &arg1) == 1 && arg1 != 0.0f) *v = (int)(arg0 / arg1); }// Divide
else { if (sscanf(buf, scalar_format, &arg0) == 1) *v = arg0; } // Assign constant
return (old_v != *v);
}
else if (data_type == ImGuiDataType_Float)
{
// For floats we have to ignore format with precision (e.g. "%.2f") because sscanf doesn't take them in
scalar_format = "%f";
float* v = (float*)data_ptr;
float ref_v = *v;
if (op && sscanf(initial_value_buf, scalar_format, &ref_v) < 1)
return;
float op_v = 0.0f;
if (sscanf(buf, scalar_format, &op_v) < 1)
return;
const float old_v = *v;
float arg0 = *v;
if (op && sscanf(initial_value_buf, scalar_format, &arg0) < 1)
return false;
if (op == '+') { *v = ref_v + op_v; } // Add (use "+-" to subtract)
else if (op == '*') { *v = ref_v * op_v; } // Multiply
else if (op == '/') { if (op_v != 0.0f) *v = ref_v / op_v; } // Divide
else { *v = op_v; } // Assign constant
float arg1 = 0.0f;
if (sscanf(buf, scalar_format, &arg1) < 1)
return false;
if (op == '+') { *v = arg0 + arg1; } // Add (use "+-" to subtract)
else if (op == '*') { *v = arg0 * arg1; } // Multiply
else if (op == '/') { if (arg1 != 0.0f) *v = arg0 / arg1; } // Divide
else { *v = arg1; } // Assign constant
return (old_v != *v);
}
return false;
}
// Create text input in place of a slider (when CTRL+Clicking on slider)
@ -6000,7 +6006,7 @@ bool ImGui::InputScalarAsWidgetReplacement(const ImRect& aabb, const char* label
char buf[32];
DataTypeFormatString(data_type, data_ptr, decimal_precision, buf, IM_ARRAYSIZE(buf));
bool value_changed = InputTextEx(label, buf, IM_ARRAYSIZE(buf), aabb.GetSize(), ImGuiInputTextFlags_CharsDecimal | ImGuiInputTextFlags_AutoSelectAll);
bool text_value_changed = InputTextEx(label, buf, IM_ARRAYSIZE(buf), aabb.GetSize(), ImGuiInputTextFlags_CharsDecimal | ImGuiInputTextFlags_AutoSelectAll);
if (g.ScalarAsInputTextId == 0)
{
// First frame
@ -6013,9 +6019,9 @@ bool ImGui::InputScalarAsWidgetReplacement(const ImRect& aabb, const char* label
// Release
g.ScalarAsInputTextId = 0;
}
if (value_changed)
DataTypeApplyOpFromText(buf, GImGui->InputTextState.InitialText.begin(), data_type, data_ptr, NULL);
return value_changed;
if (text_value_changed)
return DataTypeApplyOpFromText(buf, GImGui->InputTextState.InitialText.begin(), data_type, data_ptr, NULL);
return false;
}
// Parse display precision back from the display format string
@ -7837,10 +7843,7 @@ bool ImGui::InputScalarEx(const char* label, ImGuiDataType data_type, void* data
extra_flags |= ImGuiInputTextFlags_CharsDecimal;
extra_flags |= ImGuiInputTextFlags_AutoSelectAll;
if (ImGui::InputText("", buf, IM_ARRAYSIZE(buf), extra_flags))
{
DataTypeApplyOpFromText(buf, GImGui->InputTextState.InitialText.begin(), data_type, data_ptr, scalar_format);
value_changed = true;
}
value_changed = DataTypeApplyOpFromText(buf, GImGui->InputTextState.InitialText.begin(), data_type, data_ptr, scalar_format);
// Step buttons
if (step_ptr)