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DragFloat(), SliderFloat() Fixed rounding of negative which sometimes made the negative lower range unreachable.

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This commit is contained in:
ocornut 2015-06-03 15:31:08 +01:00
parent 0e04dfbad7
commit eb75ffdc5d
1 changed files with 7 additions and 6 deletions
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13
imgui.cpp
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@ -5629,13 +5629,15 @@ static inline float RoundScalar(float value, int decimal_precision)
// 0: 1, 1: 0.1, 2: 0.01, etc.
// So when our value is 1.99999 with a precision of 0.001 we'll end up rounding to 2.0
// FIXME: Investigate better rounding methods
const float min_step = 1.0f / powf(10.0f, (float)decimal_precision);
const float remainder = fmodf(value, min_step);
float min_step = 1.0f / powf(10.0f, (float)decimal_precision);
bool negative = value < 0.0f;
value = fabsf(value);
float remainder = fmodf(value, min_step);
if (remainder <= min_step*0.5f)
value -= remainder;
else
value += (min_step - remainder);
return value;
return negative ? -value : value;
}
static bool SliderScalarBehavior(const ImRect& frame_bb, ImGuiID id, float* v, float v_min, float v_max, float power, int decimal_precision, bool horizontal)
@ -5718,7 +5720,6 @@ static bool SliderScalarBehavior(const ImRect& frame_bb, ImGuiID id, float* v, f
// Round past decimal precision
new_value = RoundScalar(new_value, decimal_precision);
if (*v != new_value)
{
*v = new_value;
@ -10810,13 +10811,13 @@ void ImGui::ShowTestWindow(bool* opened)
ImGui::DragInt("drag int 0..100", &i2, 1, 0, 100, "%.0f%%");
static float f1=1.00f, f2=0.0067f;
ImGui::DragFloat("drag float", &f1, 1.0f);
ImGui::DragFloat("drag float", &f1, 0.005f);
ImGui::DragFloat("drag small float", &f2, 0.0001f, 0.0f, 0.0f, "%.06f ns");
}
{
static int i1=0;
ImGui::SliderInt("slider int", &i1, 0, 3);
ImGui::SliderInt("slider int", &i1, -1, 3);
ImGui::SameLine(); ShowHelpMarker("CTRL+click to input value.");
static float f1=0.123f, f2=0.0f;