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#include "my_imgui_internal_widgets.h"
#include "imgui.h"
#ifndef IMGUI_DEFINE_MATH_OPERATORS
#define IMGUI_DEFINE_MATH_OPERATORS
#endif
#include "imgui_internal.h"
// A modded version of ScalarSlider allowing for the minimum and maximum parts
// of the slider to be draggable by two other buttons. p_mid is from range -1
// to 1, and s_min and max are from 0-1.
bool ImGui::SliderLevels(const char* label, void* p_mid, void* p_left, void* p_right)
{
ImGuiWindow* window = GetCurrentWindow();
if (window->SkipItems)
return false;
const float SliderMin = -1;
const float SliderMax = 1;
const float OtherMin = 0;
const float OtherMax = 1;
const void* p_min = &SliderMin;
const void* p_max = &SliderMax;
const void* o_min = &OtherMin;
const void* o_max = &OtherMax;
ImGuiDataType data_type = ImGuiDataType_Float;
const char *format = "%f";
ImGuiSliderFlags flags = ImGuiSliderFlags_NoInput;
ImGuiContext& g = *GImGui;
const ImGuiStyle& style = g.Style;
// I'm not well-versed in exactly what ImGui's id system does, but I'm
// pretty sure it's one clickable object equals one ImGui ID.
const ImGuiID id = window->GetID(label);
PushID(label);
PushID(1);
const ImGuiID id_L = window->GetID("");
PopID();
PopID();
const ImGuiID id_R = window->GetID("adsafb");
const ImGuiID id_mid = window->GetID("asdasbdsgd");
const float w = CalcItemWidth();
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.y * 2.0f));
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));
ItemSize(total_bb, style.FramePadding.y);
if (!ItemAdd(total_bb, id_L, &frame_bb, 0))
return false;
if (!ItemAdd(total_bb, id_R, &frame_bb, 0))
return false;
if (!ItemAdd(total_bb, id_mid, &frame_bb, 0))
return false;
// Slider behavior
ImRect grab_bb;
const bool value_changed = SliderBehavior(frame_bb, id_L, data_type, p_left, o_min, o_max, format, flags, &grab_bb);
if (value_changed)
MarkItemEdited(id_L);
ImRect grab_bb2;
const bool value_changed2 = SliderBehavior(frame_bb, id_R, data_type, p_right, o_min, o_max, format, flags, &grab_bb2);
if (value_changed2)
MarkItemEdited(id_R);
const ImRect mid_bb(ImVec2(grab_bb.Max.x, frame_bb.Min.y), ImVec2(grab_bb2.Min.x, frame_bb.Max.y));
// Slider behavior
ImRect grab_bb3;
const bool value_changed3 = SliderBehavior(mid_bb, id_mid, data_type, p_mid, p_min, p_max, format, flags, &grab_bb3);
if (value_changed3)
MarkItemEdited(id_mid);
const bool hovered = ItemHoverable(frame_bb, id);
const bool input_requested_by_tabbing = (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_FocusedByTabbing) != 0;
const bool clicked = (hovered && g.IO.MouseClicked[0]);
const bool make_active = (input_requested_by_tabbing || clicked || g.NavActivateId == id || g.NavActivateInputId == id);
if (make_active)
{
if (g.IO.MousePos.x < grab_bb.Max.x) {
SetActiveID(id_L, window);
SetFocusID(id_L, window);
} else if (g.IO.MousePos.x > grab_bb2.Min.x) {
SetActiveID(id_R, window);
SetFocusID(id_R, window);
} else {
SetActiveID(id_mid, window);
SetFocusID(id_mid, window);
}
FocusWindow(window);
g.ActiveIdUsingNavDirMask |= (1 << ImGuiDir_Left) | (1 << ImGuiDir_Right);
}
// Draw frame
const ImU32 frame_col = GetColorU32(g.ActiveId == id_L ? ImGuiCol_FrameBgActive : hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg);
RenderNavHighlight(frame_bb, id_L);
RenderFrame(frame_bb.Min, frame_bb.Max, frame_col, true, g.Style.FrameRounding);
// Render grab
if (grab_bb.Max.x > grab_bb.Min.x)
window->DrawList->AddRectFilled(grab_bb.Min, grab_bb.Max, GetColorU32(g.ActiveId == id_L ? ImGuiCol_SliderGrabActive : ImGuiCol_SliderGrab), style.GrabRounding);
// Render grab
if (grab_bb2.Max.x > grab_bb2.Min.x)
window->DrawList->AddRectFilled(grab_bb2.Min, grab_bb2.Max, GetColorU32(g.ActiveId == id_R ? ImGuiCol_SliderGrabActive : ImGuiCol_SliderGrab), style.GrabRounding);
// Render grab
if (grab_bb3.Max.x > grab_bb3.Min.x)
window->DrawList->AddRectFilled(grab_bb3.Min, grab_bb3.Max, GetColorU32(g.ActiveId == id_mid ? ImGuiCol_SliderGrabActive : ImGuiCol_SliderGrab), style.GrabRounding);
// Display value using user-provided display format so user can add prefix/suffix/decorations to the value.
char value_buf[64];
const char* value_buf_end = value_buf + DataTypeFormatString(value_buf, IM_ARRAYSIZE(value_buf), data_type, p_left, format);
if (g.LogEnabled)
LogSetNextTextDecoration("{", "}");
RenderTextClipped(frame_bb.Min, frame_bb.Max, value_buf, value_buf_end, NULL, ImVec2(0.5f, 0.5f));
if (label_size.x > 0.0f)
RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label);
IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags);
return value_changed;
}
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