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Slider internals: removed unnecessary slider_bb parameter

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ocornut 2015-04-18 19:34:05 +01:00
parent acbd58627f
commit 731b003c9d
1 changed files with 12 additions and 13 deletions
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25
imgui.cpp
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@ -5138,7 +5138,7 @@ static inline float RoundScalar(float value, int decimal_precision)
return value; return value;
} }
static bool SliderBehavior(const ImRect& frame_bb, const ImRect& slider_bb, ImGuiID id, float* v, float v_min, float v_max, float power, int decimal_precision, bool horizontal) static bool SliderScalarBehavior(const ImRect& frame_bb, ImGuiID id, float* v, float v_min, float v_max, float power, int decimal_precision, bool horizontal)
{ {
ImGuiState& g = *GImGui; ImGuiState& g = *GImGui;
ImGuiWindow* window = GetCurrentWindow(); ImGuiWindow* window = GetCurrentWindow();
@ -5149,15 +5149,16 @@ static bool SliderBehavior(const ImRect& frame_bb, const ImRect& slider_bb, ImGu
const bool is_non_linear = fabsf(power - 1.0f) > 0.0001f; const bool is_non_linear = fabsf(power - 1.0f) > 0.0001f;
const float slider_sz = horizontal ? slider_bb.GetWidth() : slider_bb.GetHeight(); const float padding = horizontal ? style.FramePadding.x : style.FramePadding.y;
const float slider_sz = horizontal ? (frame_bb.GetWidth() - padding * 2.0f) : (frame_bb.GetHeight() - padding * 2.0f);
float grab_sz; float grab_sz;
if (decimal_precision > 0) if (decimal_precision > 0)
grab_sz = ImMin(style.GrabMinSize, slider_sz); grab_sz = ImMin(style.GrabMinSize, slider_sz);
else else
grab_sz = ImMin(ImMax(1.0f * (slider_sz / (v_max-v_min+1.0f)), style.GrabMinSize), slider_sz); // Integer sliders, if possible have the grab size represent 1 unit grab_sz = ImMin(ImMax(1.0f * (slider_sz / (v_max-v_min+1.0f)), style.GrabMinSize), slider_sz); // Integer sliders, if possible have the grab size represent 1 unit
const float slider_usable_sz = slider_sz - grab_sz; const float slider_usable_sz = slider_sz - grab_sz;
const float slider_usable_pos_min = (horizontal ? slider_bb.Min.x : slider_bb.Min.y) + grab_sz*0.5f; const float slider_usable_pos_min = (horizontal ? frame_bb.Min.x : frame_bb.Min.y) + padding + grab_sz*0.5f;
const float slider_usable_pos_max = (horizontal ? slider_bb.Max.x : slider_bb.Max.y) - grab_sz*0.5f; const float slider_usable_pos_max = (horizontal ? frame_bb.Max.x : frame_bb.Max.y) - padding - grab_sz*0.5f;
bool value_changed = false; bool value_changed = false;
@ -5195,7 +5196,7 @@ static bool SliderBehavior(const ImRect& frame_bb, const ImRect& slider_bb, ImGu
// Negative: rescale to the negative range before powering // Negative: rescale to the negative range before powering
float a = 1.0f - (normalized_pos / linear_zero_pos); float a = 1.0f - (normalized_pos / linear_zero_pos);
a = powf(a, power); a = powf(a, power);
new_value = ImLerp(ImMin(v_max,0.f), v_min, a); new_value = ImLerp(ImMin(v_max,0.0f), v_min, a);
} }
else else
{ {
@ -5284,7 +5285,6 @@ bool ImGui::SliderFloat(const char* label, float* v, float v_min, float v_max, c
const ImVec2 label_size = CalcTextSize(label, NULL, true); const ImVec2 label_size = CalcTextSize(label, NULL, true);
const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, label_size.y) + style.FramePadding*2.0f); const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, label_size.y) + style.FramePadding*2.0f);
const ImRect inner_bb(frame_bb.Min + style.FramePadding, frame_bb.Max - style.FramePadding);
const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f)); const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f));
// NB- we don't call ItemSize() yet because we may turn into a text edit box below // NB- we don't call ItemSize() yet because we may turn into a text edit box below
@ -5324,16 +5324,16 @@ bool ImGui::SliderFloat(const char* label, float* v, float v_min, float v_max, c
ItemSize(total_bb, style.FramePadding.y); ItemSize(total_bb, style.FramePadding.y);
// Actual slider behavior + render grab // Actual slider behavior + render grab
const bool value_changed = SliderBehavior(frame_bb, inner_bb, id, v, v_min, v_max, power, decimal_precision, true); const bool value_changed = SliderScalarBehavior(frame_bb, id, v, v_min, v_max, power, decimal_precision, true);
// Display value using user-provided display format so user can add prefix/suffix/decorations to the value. // Display value using user-provided display format so user can add prefix/suffix/decorations to the value.
char value_buf[64]; char value_buf[64];
const char* value_buf_end = value_buf + ImFormatString(value_buf, IM_ARRAYSIZE(value_buf), display_format, *v); const char* value_buf_end = value_buf + ImFormatString(value_buf, IM_ARRAYSIZE(value_buf), display_format, *v);
const ImVec2 value_text_size = CalcTextSize(value_buf, value_buf_end, true); const ImVec2 value_text_size = CalcTextSize(value_buf, value_buf_end, true);
RenderTextClipped(ImVec2(ImMax(frame_bb.Min.x + style.FramePadding.x, inner_bb.GetCenter().x - value_text_size.x*0.5f), frame_bb.Min.y + style.FramePadding.y), value_buf, value_buf_end, &value_text_size, frame_bb.Max); RenderTextClipped(ImVec2(ImMax(frame_bb.Min.x + style.FramePadding.x, frame_bb.GetCenter().x - value_text_size.x*0.5f), frame_bb.Min.y + style.FramePadding.y), value_buf, value_buf_end, &value_text_size, frame_bb.Max);
if (label_size.x > 0.0f) if (label_size.x > 0.0f)
RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, inner_bb.Min.y), label); RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label);
return value_changed; return value_changed;
} }
@ -5350,7 +5350,6 @@ bool ImGui::VSliderFloat(const char* label, const ImVec2& size, float* v, float
const ImVec2 label_size = CalcTextSize(label, NULL, true); const ImVec2 label_size = CalcTextSize(label, NULL, true);
const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + size); const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + size);
const ImRect slider_bb(frame_bb.Min + style.FramePadding, frame_bb.Max - style.FramePadding);
const ImRect bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f)); const ImRect bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f));
ItemSize(bb, style.FramePadding.y); ItemSize(bb, style.FramePadding.y);
@ -5373,17 +5372,17 @@ bool ImGui::VSliderFloat(const char* label, const ImVec2& size, float* v, float
} }
// Actual slider behavior + render grab // Actual slider behavior + render grab
bool value_changed = SliderBehavior(frame_bb, slider_bb, id, v, v_min, v_max, power, decimal_precision, false); bool value_changed = SliderScalarBehavior(frame_bb, id, v, v_min, v_max, power, decimal_precision, false);
// Display value using user-provided display format so user can add prefix/suffix/decorations to the value. // Display value using user-provided display format so user can add prefix/suffix/decorations to the value.
// For the vertical slider we allow centered text to overlap the frame padding // For the vertical slider we allow centered text to overlap the frame padding
char value_buf[64]; char value_buf[64];
char* value_buf_end = value_buf + ImFormatString(value_buf, IM_ARRAYSIZE(value_buf), display_format, *v); char* value_buf_end = value_buf + ImFormatString(value_buf, IM_ARRAYSIZE(value_buf), display_format, *v);
const ImVec2 value_text_size = CalcTextSize(value_buf, value_buf_end, true); const ImVec2 value_text_size = CalcTextSize(value_buf, value_buf_end, true);
RenderTextClipped(ImVec2(ImMax(frame_bb.Min.x, slider_bb.GetCenter().x - value_text_size.x*0.5f), frame_bb.Min.y + style.FramePadding.y), value_buf, value_buf_end, &value_text_size, frame_bb.Max); RenderTextClipped(ImVec2(ImMax(frame_bb.Min.x, frame_bb.GetCenter().x - value_text_size.x*0.5f), frame_bb.Min.y + style.FramePadding.y), value_buf, value_buf_end, &value_text_size, frame_bb.Max);
if (label_size.x > 0.0f) if (label_size.x > 0.0f)
RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, slider_bb.Min.y), label); RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label);
return value_changed; return value_changed;
} }