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implot_items.cpp
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implot_items.cpp
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// MIT License
// Copyright (c) 2023 Evan Pezent
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
// ImPlot v0.17
#define IMGUI_DEFINE_MATH_OPERATORS
#include "implot.h"
#include "implot_internal.h"
//-----------------------------------------------------------------------------
// [SECTION] Macros and Defines
//-----------------------------------------------------------------------------
#define SQRT_1_2 0.70710678118f
#define SQRT_3_2 0.86602540378f
#ifndef IMPLOT_NO_FORCE_INLINE
#ifdef _MSC_VER
#define IMPLOT_INLINE __forceinline
#elif defined(__GNUC__)
#define IMPLOT_INLINE inline __attribute__((__always_inline__))
#elif defined(__CLANG__)
#if __has_attribute(__always_inline__)
#define IMPLOT_INLINE inline __attribute__((__always_inline__))
#else
#define IMPLOT_INLINE inline
#endif
#else
#define IMPLOT_INLINE inline
#endif
#else
#define IMPLOT_INLINE inline
#endif
#if defined __SSE__ || defined __x86_64__ || defined _M_X64
#ifndef IMGUI_ENABLE_SSE
#include <immintrin.h>
#endif
static IMPLOT_INLINE float ImInvSqrt(float x) { return _mm_cvtss_f32(_mm_rsqrt_ss(_mm_set_ss(x))); }
#else
static IMPLOT_INLINE float ImInvSqrt(float x) { return 1.0f / sqrtf(x); }
#endif
#define IMPLOT_NORMALIZE2F_OVER_ZERO(VX,VY) do { float d2 = VX*VX + VY*VY; if (d2 > 0.0f) { float inv_len = ImInvSqrt(d2); VX *= inv_len; VY *= inv_len; } } while (0)
// Support for pre-1.82 versions. Users on 1.82+ can use 0 (default) flags to mean "all corners" but in order to support older versions we are more explicit.
#if (IMGUI_VERSION_NUM < 18102) && !defined(ImDrawFlags_RoundCornersAll)
#define ImDrawFlags_RoundCornersAll ImDrawCornerFlags_All
#endif
//-----------------------------------------------------------------------------
// [SECTION] Template instantiation utility
//-----------------------------------------------------------------------------
// By default, templates are instantiated for `float`, `double`, and for the following integer types, which are defined in imgui.h:
// signed char ImS8; // 8-bit signed integer
// unsigned char ImU8; // 8-bit unsigned integer
// signed short ImS16; // 16-bit signed integer
// unsigned short ImU16; // 16-bit unsigned integer
// signed int ImS32; // 32-bit signed integer == int
// unsigned int ImU32; // 32-bit unsigned integer
// signed long long ImS64; // 64-bit signed integer
// unsigned long long ImU64; // 64-bit unsigned integer
// (note: this list does *not* include `long`, `unsigned long` and `long double`)
//
// You can customize the supported types by defining IMPLOT_CUSTOM_NUMERIC_TYPES at compile time to define your own type list.
// As an example, you could use the compile time define given by the line below in order to support only float and double.
// -DIMPLOT_CUSTOM_NUMERIC_TYPES="(float)(double)"
// In order to support all known C++ types, use:
// -DIMPLOT_CUSTOM_NUMERIC_TYPES="(signed char)(unsigned char)(signed short)(unsigned short)(signed int)(unsigned int)(signed long)(unsigned long)(signed long long)(unsigned long long)(float)(double)(long double)"
#ifdef IMPLOT_CUSTOM_NUMERIC_TYPES
#define IMPLOT_NUMERIC_TYPES IMPLOT_CUSTOM_NUMERIC_TYPES
#else
#define IMPLOT_NUMERIC_TYPES (ImS8)(ImU8)(ImS16)(ImU16)(ImS32)(ImU32)(ImS64)(ImU64)(float)(double)
#endif
// CALL_INSTANTIATE_FOR_NUMERIC_TYPES will duplicate the template instantion code `INSTANTIATE_MACRO(T)` on supported types.
#define _CAT(x, y) _CAT_(x, y)
#define _CAT_(x,y) x ## y
#define _INSTANTIATE_FOR_NUMERIC_TYPES(chain) _CAT(_INSTANTIATE_FOR_NUMERIC_TYPES_1 chain, _END)
#define _INSTANTIATE_FOR_NUMERIC_TYPES_1(T) INSTANTIATE_MACRO(T) _INSTANTIATE_FOR_NUMERIC_TYPES_2
#define _INSTANTIATE_FOR_NUMERIC_TYPES_2(T) INSTANTIATE_MACRO(T) _INSTANTIATE_FOR_NUMERIC_TYPES_1
#define _INSTANTIATE_FOR_NUMERIC_TYPES_1_END
#define _INSTANTIATE_FOR_NUMERIC_TYPES_2_END
#define CALL_INSTANTIATE_FOR_NUMERIC_TYPES() _INSTANTIATE_FOR_NUMERIC_TYPES(IMPLOT_NUMERIC_TYPES)
namespace ImPlot {
//-----------------------------------------------------------------------------
// [SECTION] Utils
//-----------------------------------------------------------------------------
// Calc maximum index size of ImDrawIdx
template <typename T>
struct MaxIdx { static const unsigned int Value; };
template <> const unsigned int MaxIdx<unsigned short>::Value = 65535;
template <> const unsigned int MaxIdx<unsigned int>::Value = 4294967295;
IMPLOT_INLINE void GetLineRenderProps(const ImDrawList& draw_list, float& half_weight, ImVec2& tex_uv0, ImVec2& tex_uv1) {
const bool aa = ImHasFlag(draw_list.Flags, ImDrawListFlags_AntiAliasedLines) &&
ImHasFlag(draw_list.Flags, ImDrawListFlags_AntiAliasedLinesUseTex);
if (aa) {
ImVec4 tex_uvs = draw_list._Data->TexUvLines[(int)(half_weight*2)];
tex_uv0 = ImVec2(tex_uvs.x, tex_uvs.y);
tex_uv1 = ImVec2(tex_uvs.z, tex_uvs.w);
half_weight += 1;
}
else {
tex_uv0 = tex_uv1 = draw_list._Data->TexUvWhitePixel;
}
}
IMPLOT_INLINE void PrimLine(ImDrawList& draw_list, const ImVec2& P1, const ImVec2& P2, float half_weight, ImU32 col, const ImVec2& tex_uv0, const ImVec2 tex_uv1) {
float dx = P2.x - P1.x;
float dy = P2.y - P1.y;
IMPLOT_NORMALIZE2F_OVER_ZERO(dx, dy);
dx *= half_weight;
dy *= half_weight;
draw_list._VtxWritePtr[0].pos.x = P1.x + dy;
draw_list._VtxWritePtr[0].pos.y = P1.y - dx;
draw_list._VtxWritePtr[0].uv = tex_uv0;
draw_list._VtxWritePtr[0].col = col;
draw_list._VtxWritePtr[1].pos.x = P2.x + dy;
draw_list._VtxWritePtr[1].pos.y = P2.y - dx;
draw_list._VtxWritePtr[1].uv = tex_uv0;
draw_list._VtxWritePtr[1].col = col;
draw_list._VtxWritePtr[2].pos.x = P2.x - dy;
draw_list._VtxWritePtr[2].pos.y = P2.y + dx;
draw_list._VtxWritePtr[2].uv = tex_uv1;
draw_list._VtxWritePtr[2].col = col;
draw_list._VtxWritePtr[3].pos.x = P1.x - dy;
draw_list._VtxWritePtr[3].pos.y = P1.y + dx;
draw_list._VtxWritePtr[3].uv = tex_uv1;
draw_list._VtxWritePtr[3].col = col;
draw_list._VtxWritePtr += 4;
draw_list._IdxWritePtr[0] = (ImDrawIdx)(draw_list._VtxCurrentIdx);
draw_list._IdxWritePtr[1] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 1);
draw_list._IdxWritePtr[2] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 2);
draw_list._IdxWritePtr[3] = (ImDrawIdx)(draw_list._VtxCurrentIdx);
draw_list._IdxWritePtr[4] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 2);
draw_list._IdxWritePtr[5] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 3);
draw_list._IdxWritePtr += 6;
draw_list._VtxCurrentIdx += 4;
}
IMPLOT_INLINE void PrimRectFill(ImDrawList& draw_list, const ImVec2& Pmin, const ImVec2& Pmax, ImU32 col, const ImVec2& uv) {
draw_list._VtxWritePtr[0].pos = Pmin;
draw_list._VtxWritePtr[0].uv = uv;
draw_list._VtxWritePtr[0].col = col;
draw_list._VtxWritePtr[1].pos = Pmax;
draw_list._VtxWritePtr[1].uv = uv;
draw_list._VtxWritePtr[1].col = col;
draw_list._VtxWritePtr[2].pos.x = Pmin.x;
draw_list._VtxWritePtr[2].pos.y = Pmax.y;
draw_list._VtxWritePtr[2].uv = uv;
draw_list._VtxWritePtr[2].col = col;
draw_list._VtxWritePtr[3].pos.x = Pmax.x;
draw_list._VtxWritePtr[3].pos.y = Pmin.y;
draw_list._VtxWritePtr[3].uv = uv;
draw_list._VtxWritePtr[3].col = col;
draw_list._VtxWritePtr += 4;
draw_list._IdxWritePtr[0] = (ImDrawIdx)(draw_list._VtxCurrentIdx);
draw_list._IdxWritePtr[1] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 1);
draw_list._IdxWritePtr[2] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 2);
draw_list._IdxWritePtr[3] = (ImDrawIdx)(draw_list._VtxCurrentIdx);
draw_list._IdxWritePtr[4] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 1);
draw_list._IdxWritePtr[5] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 3);
draw_list._IdxWritePtr += 6;
draw_list._VtxCurrentIdx += 4;
}
IMPLOT_INLINE void PrimRectLine(ImDrawList& draw_list, const ImVec2& Pmin, const ImVec2& Pmax, float weight, ImU32 col, const ImVec2& uv) {
draw_list._VtxWritePtr[0].pos.x = Pmin.x;
draw_list._VtxWritePtr[0].pos.y = Pmin.y;
draw_list._VtxWritePtr[0].uv = uv;
draw_list._VtxWritePtr[0].col = col;
draw_list._VtxWritePtr[1].pos.x = Pmin.x;
draw_list._VtxWritePtr[1].pos.y = Pmax.y;
draw_list._VtxWritePtr[1].uv = uv;
draw_list._VtxWritePtr[1].col = col;
draw_list._VtxWritePtr[2].pos.x = Pmax.x;
draw_list._VtxWritePtr[2].pos.y = Pmax.y;
draw_list._VtxWritePtr[2].uv = uv;
draw_list._VtxWritePtr[2].col = col;
draw_list._VtxWritePtr[3].pos.x = Pmax.x;
draw_list._VtxWritePtr[3].pos.y = Pmin.y;
draw_list._VtxWritePtr[3].uv = uv;
draw_list._VtxWritePtr[3].col = col;
draw_list._VtxWritePtr[4].pos.x = Pmin.x + weight;
draw_list._VtxWritePtr[4].pos.y = Pmin.y + weight;
draw_list._VtxWritePtr[4].uv = uv;
draw_list._VtxWritePtr[4].col = col;
draw_list._VtxWritePtr[5].pos.x = Pmin.x + weight;
draw_list._VtxWritePtr[5].pos.y = Pmax.y - weight;
draw_list._VtxWritePtr[5].uv = uv;
draw_list._VtxWritePtr[5].col = col;
draw_list._VtxWritePtr[6].pos.x = Pmax.x - weight;
draw_list._VtxWritePtr[6].pos.y = Pmax.y - weight;
draw_list._VtxWritePtr[6].uv = uv;
draw_list._VtxWritePtr[6].col = col;
draw_list._VtxWritePtr[7].pos.x = Pmax.x - weight;
draw_list._VtxWritePtr[7].pos.y = Pmin.y + weight;
draw_list._VtxWritePtr[7].uv = uv;
draw_list._VtxWritePtr[7].col = col;
draw_list._VtxWritePtr += 8;
draw_list._IdxWritePtr[0] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 0);
draw_list._IdxWritePtr[1] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 1);
draw_list._IdxWritePtr[2] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 5);
draw_list._IdxWritePtr += 3;
draw_list._IdxWritePtr[0] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 0);
draw_list._IdxWritePtr[1] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 5);
draw_list._IdxWritePtr[2] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 4);
draw_list._IdxWritePtr += 3;
draw_list._IdxWritePtr[0] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 1);
draw_list._IdxWritePtr[1] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 2);
draw_list._IdxWritePtr[2] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 6);
draw_list._IdxWritePtr += 3;
draw_list._IdxWritePtr[0] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 1);
draw_list._IdxWritePtr[1] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 6);
draw_list._IdxWritePtr[2] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 5);
draw_list._IdxWritePtr += 3;
draw_list._IdxWritePtr[0] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 2);
draw_list._IdxWritePtr[1] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 3);
draw_list._IdxWritePtr[2] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 7);
draw_list._IdxWritePtr += 3;
draw_list._IdxWritePtr[0] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 2);
draw_list._IdxWritePtr[1] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 7);
draw_list._IdxWritePtr[2] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 6);
draw_list._IdxWritePtr += 3;
draw_list._IdxWritePtr[0] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 3);
draw_list._IdxWritePtr[1] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 0);
draw_list._IdxWritePtr[2] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 4);
draw_list._IdxWritePtr += 3;
draw_list._IdxWritePtr[0] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 3);
draw_list._IdxWritePtr[1] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 4);
draw_list._IdxWritePtr[2] = (ImDrawIdx)(draw_list._VtxCurrentIdx + 7);
draw_list._IdxWritePtr += 3;
draw_list._VtxCurrentIdx += 8;
}
//-----------------------------------------------------------------------------
// [SECTION] Item Utils
//-----------------------------------------------------------------------------
ImPlotItem* RegisterOrGetItem(const char* label_id, ImPlotItemFlags flags, bool* just_created) {
ImPlotContext& gp = *GImPlot;
ImPlotItemGroup& Items = *gp.CurrentItems;
ImGuiID id = Items.GetItemID(label_id);
if (just_created != nullptr)
*just_created = Items.GetItem(id) == nullptr;
ImPlotItem* item = Items.GetOrAddItem(id);
if (item->SeenThisFrame)
return item;
item->SeenThisFrame = true;
int idx = Items.GetItemIndex(item);
item->ID = id;
if (!ImHasFlag(flags, ImPlotItemFlags_NoLegend) && ImGui::FindRenderedTextEnd(label_id, nullptr) != label_id) {
Items.Legend.Indices.push_back(idx);
item->NameOffset = Items.Legend.Labels.size();
Items.Legend.Labels.append(label_id, label_id + strlen(label_id) + 1);
}
else {
item->Show = true;
}
return item;
}
ImPlotItem* GetItem(const char* label_id) {
ImPlotContext& gp = *GImPlot;
return gp.CurrentItems->GetItem(label_id);
}
bool IsItemHidden(const char* label_id) {
ImPlotItem* item = GetItem(label_id);
return item != nullptr && !item->Show;
}
ImPlotItem* GetCurrentItem() {
ImPlotContext& gp = *GImPlot;
return gp.CurrentItem;
}
void SetNextLineStyle(const ImVec4& col, float weight) {
ImPlotContext& gp = *GImPlot;
gp.NextItemData.Colors[ImPlotCol_Line] = col;
gp.NextItemData.LineWeight = weight;
}
void SetNextFillStyle(const ImVec4& col, float alpha) {
ImPlotContext& gp = *GImPlot;
gp.NextItemData.Colors[ImPlotCol_Fill] = col;
gp.NextItemData.FillAlpha = alpha;
}
void SetNextMarkerStyle(ImPlotMarker marker, float size, const ImVec4& fill, float weight, const ImVec4& outline) {
ImPlotContext& gp = *GImPlot;
gp.NextItemData.Marker = marker;
gp.NextItemData.Colors[ImPlotCol_MarkerFill] = fill;
gp.NextItemData.MarkerSize = size;
gp.NextItemData.Colors[ImPlotCol_MarkerOutline] = outline;
gp.NextItemData.MarkerWeight = weight;
}
void SetNextErrorBarStyle(const ImVec4& col, float size, float weight) {
ImPlotContext& gp = *GImPlot;
gp.NextItemData.Colors[ImPlotCol_ErrorBar] = col;
gp.NextItemData.ErrorBarSize = size;
gp.NextItemData.ErrorBarWeight = weight;
}
ImVec4 GetLastItemColor() {
ImPlotContext& gp = *GImPlot;
if (gp.PreviousItem)
return ImGui::ColorConvertU32ToFloat4(gp.PreviousItem->Color);
return ImVec4();
}
void BustItemCache() {
ImPlotContext& gp = *GImPlot;
for (int p = 0; p < gp.Plots.GetBufSize(); ++p) {
ImPlotPlot& plot = *gp.Plots.GetByIndex(p);
plot.Items.Reset();
}
for (int p = 0; p < gp.Subplots.GetBufSize(); ++p) {
ImPlotSubplot& subplot = *gp.Subplots.GetByIndex(p);
subplot.Items.Reset();
}
}
void BustColorCache(const char* plot_title_id) {
ImPlotContext& gp = *GImPlot;
if (plot_title_id == nullptr) {
BustItemCache();
}
else {
ImGuiID id = ImGui::GetCurrentWindow()->GetID(plot_title_id);
ImPlotPlot* plot = gp.Plots.GetByKey(id);
if (plot != nullptr)
plot->Items.Reset();
else {
ImPlotSubplot* subplot = gp.Subplots.GetByKey(id);
if (subplot != nullptr)
subplot->Items.Reset();
}
}
}
//-----------------------------------------------------------------------------
// [SECTION] BeginItem / EndItem
//-----------------------------------------------------------------------------
static const float ITEM_HIGHLIGHT_LINE_SCALE = 2.0f;
static const float ITEM_HIGHLIGHT_MARK_SCALE = 1.25f;
// Begins a new item. Returns false if the item should not be plotted.
bool BeginItem(const char* label_id, ImPlotItemFlags flags, ImPlotCol recolor_from) {
ImPlotContext& gp = *GImPlot;
IM_ASSERT_USER_ERROR(gp.CurrentPlot != nullptr, "PlotX() needs to be called between BeginPlot() and EndPlot()!");
SetupLock();
bool just_created;
ImPlotItem* item = RegisterOrGetItem(label_id, flags, &just_created);
// set current item
gp.CurrentItem = item;
ImPlotNextItemData& s = gp.NextItemData;
// set/override item color
if (recolor_from != -1) {
if (!IsColorAuto(s.Colors[recolor_from]))
item->Color = ImGui::ColorConvertFloat4ToU32(s.Colors[recolor_from]);
else if (!IsColorAuto(gp.Style.Colors[recolor_from]))
item->Color = ImGui::ColorConvertFloat4ToU32(gp.Style.Colors[recolor_from]);
else if (just_created)
item->Color = NextColormapColorU32();
}
else if (just_created) {
item->Color = NextColormapColorU32();
}
// hide/show item
if (gp.NextItemData.HasHidden) {
if (just_created || gp.NextItemData.HiddenCond == ImGuiCond_Always)
item->Show = !gp.NextItemData.Hidden;
}
if (!item->Show) {
// reset next item data
gp.NextItemData.Reset();
gp.PreviousItem = item;
gp.CurrentItem = nullptr;
return false;
}
else {
ImVec4 item_color = ImGui::ColorConvertU32ToFloat4(item->Color);
// stage next item colors
s.Colors[ImPlotCol_Line] = IsColorAuto(s.Colors[ImPlotCol_Line]) ? ( IsColorAuto(ImPlotCol_Line) ? item_color : gp.Style.Colors[ImPlotCol_Line] ) : s.Colors[ImPlotCol_Line];
s.Colors[ImPlotCol_Fill] = IsColorAuto(s.Colors[ImPlotCol_Fill]) ? ( IsColorAuto(ImPlotCol_Fill) ? item_color : gp.Style.Colors[ImPlotCol_Fill] ) : s.Colors[ImPlotCol_Fill];
s.Colors[ImPlotCol_MarkerOutline] = IsColorAuto(s.Colors[ImPlotCol_MarkerOutline]) ? ( IsColorAuto(ImPlotCol_MarkerOutline) ? s.Colors[ImPlotCol_Line] : gp.Style.Colors[ImPlotCol_MarkerOutline] ) : s.Colors[ImPlotCol_MarkerOutline];
s.Colors[ImPlotCol_MarkerFill] = IsColorAuto(s.Colors[ImPlotCol_MarkerFill]) ? ( IsColorAuto(ImPlotCol_MarkerFill) ? s.Colors[ImPlotCol_Line] : gp.Style.Colors[ImPlotCol_MarkerFill] ) : s.Colors[ImPlotCol_MarkerFill];
s.Colors[ImPlotCol_ErrorBar] = IsColorAuto(s.Colors[ImPlotCol_ErrorBar]) ? ( GetStyleColorVec4(ImPlotCol_ErrorBar) ) : s.Colors[ImPlotCol_ErrorBar];
// stage next item style vars
s.LineWeight = s.LineWeight < 0 ? gp.Style.LineWeight : s.LineWeight;
s.Marker = s.Marker < 0 ? gp.Style.Marker : s.Marker;
s.MarkerSize = s.MarkerSize < 0 ? gp.Style.MarkerSize : s.MarkerSize;
s.MarkerWeight = s.MarkerWeight < 0 ? gp.Style.MarkerWeight : s.MarkerWeight;
s.FillAlpha = s.FillAlpha < 0 ? gp.Style.FillAlpha : s.FillAlpha;
s.ErrorBarSize = s.ErrorBarSize < 0 ? gp.Style.ErrorBarSize : s.ErrorBarSize;
s.ErrorBarWeight = s.ErrorBarWeight < 0 ? gp.Style.ErrorBarWeight : s.ErrorBarWeight;
s.DigitalBitHeight = s.DigitalBitHeight < 0 ? gp.Style.DigitalBitHeight : s.DigitalBitHeight;
s.DigitalBitGap = s.DigitalBitGap < 0 ? gp.Style.DigitalBitGap : s.DigitalBitGap;
// apply alpha modifier(s)
s.Colors[ImPlotCol_Fill].w *= s.FillAlpha;
s.Colors[ImPlotCol_MarkerFill].w *= s.FillAlpha; // TODO: this should be separate, if it at all
// apply highlight mods
if (item->LegendHovered) {
if (!ImHasFlag(gp.CurrentItems->Legend.Flags, ImPlotLegendFlags_NoHighlightItem)) {
s.LineWeight *= ITEM_HIGHLIGHT_LINE_SCALE;
s.MarkerSize *= ITEM_HIGHLIGHT_MARK_SCALE;
s.MarkerWeight *= ITEM_HIGHLIGHT_LINE_SCALE;
// TODO: how to highlight fills?
}
if (!ImHasFlag(gp.CurrentItems->Legend.Flags, ImPlotLegendFlags_NoHighlightAxis)) {
if (gp.CurrentPlot->EnabledAxesX() > 1)
gp.CurrentPlot->Axes[gp.CurrentPlot->CurrentX].ColorHiLi = item->Color;
if (gp.CurrentPlot->EnabledAxesY() > 1)
gp.CurrentPlot->Axes[gp.CurrentPlot->CurrentY].ColorHiLi = item->Color;
}
}
// set render flags
s.RenderLine = s.Colors[ImPlotCol_Line].w > 0 && s.LineWeight > 0;
s.RenderFill = s.Colors[ImPlotCol_Fill].w > 0;
s.RenderMarkerFill = s.Colors[ImPlotCol_MarkerFill].w > 0;
s.RenderMarkerLine = s.Colors[ImPlotCol_MarkerOutline].w > 0 && s.MarkerWeight > 0;
// push rendering clip rect
PushPlotClipRect();
return true;
}
}
// Ends an item (call only if BeginItem returns true)
void EndItem() {
ImPlotContext& gp = *GImPlot;
// pop rendering clip rect
PopPlotClipRect();
// reset next item data
gp.NextItemData.Reset();
// set current item
gp.PreviousItem = gp.CurrentItem;
gp.CurrentItem = nullptr;
}
//-----------------------------------------------------------------------------
// [SECTION] Indexers
//-----------------------------------------------------------------------------
template <typename T>
IMPLOT_INLINE T IndexData(const T* data, int idx, int count, int offset, int stride) {
const int s = ((offset == 0) << 0) | ((stride == sizeof(T)) << 1);
switch (s) {
case 3 : return data[idx];
case 2 : return data[(offset + idx) % count];
case 1 : return *(const T*)(const void*)((const unsigned char*)data + (size_t)((idx) ) * stride);
case 0 : return *(const T*)(const void*)((const unsigned char*)data + (size_t)((offset + idx) % count) * stride);
default: return T(0);
}
}
template <typename T>
struct IndexerIdx {
IndexerIdx(const T* data, int count, int offset = 0, int stride = sizeof(T)) :
Data(data),
Count(count),
Offset(count ? ImPosMod(offset, count) : 0),
Stride(stride)
{ }
template <typename I> IMPLOT_INLINE double operator()(I idx) const {
return (double)IndexData(Data, idx, Count, Offset, Stride);
}
const T* Data;
int Count;
int Offset;
int Stride;
};
template <typename _Indexer1, typename _Indexer2>
struct IndexerAdd {
IndexerAdd(const _Indexer1& indexer1, const _Indexer2& indexer2, double scale1 = 1, double scale2 = 1)
: Indexer1(indexer1),
Indexer2(indexer2),
Scale1(scale1),
Scale2(scale2),
Count(ImMin(Indexer1.Count, Indexer2.Count))
{ }
template <typename I> IMPLOT_INLINE double operator()(I idx) const {
return Scale1 * Indexer1(idx) + Scale2 * Indexer2(idx);
}
const _Indexer1& Indexer1;
const _Indexer2& Indexer2;
double Scale1;
double Scale2;
int Count;
};
struct IndexerLin {
IndexerLin(double m, double b) : M(m), B(b) { }
template <typename I> IMPLOT_INLINE double operator()(I idx) const {
return M * idx + B;
}
const double M;
const double B;
};
struct IndexerConst {
IndexerConst(double ref) : Ref(ref) { }
template <typename I> IMPLOT_INLINE double operator()(I) const { return Ref; }
const double Ref;
};
//-----------------------------------------------------------------------------
// [SECTION] Getters
//-----------------------------------------------------------------------------
template <typename _IndexerX, typename _IndexerY>
struct GetterXY {
GetterXY(_IndexerX x, _IndexerY y, int count) : IndxerX(x), IndxerY(y), Count(count) { }
template <typename I> IMPLOT_INLINE ImPlotPoint operator()(I idx) const {
return ImPlotPoint(IndxerX(idx),IndxerY(idx));
}
const _IndexerX IndxerX;
const _IndexerY IndxerY;
const int Count;
};
/// Interprets a user's function pointer as ImPlotPoints
struct GetterFuncPtr {
GetterFuncPtr(ImPlotGetter getter, void* data, int count) :
Getter(getter),
Data(data),
Count(count)
{ }
template <typename I> IMPLOT_INLINE ImPlotPoint operator()(I idx) const {
return Getter(idx, Data);
}
ImPlotGetter Getter;
void* const Data;
const int Count;
};
template <typename _Getter>
struct GetterOverrideX {
GetterOverrideX(_Getter getter, double x) : Getter(getter), X(x), Count(getter.Count) { }
template <typename I> IMPLOT_INLINE ImPlotPoint operator()(I idx) const {
ImPlotPoint p = Getter(idx);
p.x = X;
return p;
}
const _Getter Getter;
const double X;
const int Count;
};
template <typename _Getter>
struct GetterOverrideY {
GetterOverrideY(_Getter getter, double y) : Getter(getter), Y(y), Count(getter.Count) { }
template <typename I> IMPLOT_INLINE ImPlotPoint operator()(I idx) const {
ImPlotPoint p = Getter(idx);
p.y = Y;
return p;
}
const _Getter Getter;
const double Y;
const int Count;
};
template <typename _Getter>
struct GetterLoop {
GetterLoop(_Getter getter) : Getter(getter), Count(getter.Count + 1) { }
template <typename I> IMPLOT_INLINE ImPlotPoint operator()(I idx) const {
idx = idx % (Count - 1);
return Getter(idx);
}
const _Getter Getter;
const int Count;
};
template <typename T>
struct GetterError {
GetterError(const T* xs, const T* ys, const T* neg, const T* pos, int count, int offset, int stride) :
Xs(xs),
Ys(ys),
Neg(neg),
Pos(pos),
Count(count),
Offset(count ? ImPosMod(offset, count) : 0),
Stride(stride)
{ }
template <typename I> IMPLOT_INLINE ImPlotPointError operator()(I idx) const {
return ImPlotPointError((double)IndexData(Xs, idx, Count, Offset, Stride),
(double)IndexData(Ys, idx, Count, Offset, Stride),
(double)IndexData(Neg, idx, Count, Offset, Stride),
(double)IndexData(Pos, idx, Count, Offset, Stride));
}
const T* const Xs;
const T* const Ys;
const T* const Neg;
const T* const Pos;
const int Count;
const int Offset;
const int Stride;
};
//-----------------------------------------------------------------------------
// [SECTION] Fitters
//-----------------------------------------------------------------------------
template <typename _Getter1>
struct Fitter1 {
Fitter1(const _Getter1& getter) : Getter(getter) { }
void Fit(ImPlotAxis& x_axis, ImPlotAxis& y_axis) const {
for (int i = 0; i < Getter.Count; ++i) {
ImPlotPoint p = Getter(i);
x_axis.ExtendFitWith(y_axis, p.x, p.y);
y_axis.ExtendFitWith(x_axis, p.y, p.x);
}
}
const _Getter1& Getter;
};
template <typename _Getter1>
struct FitterX {
FitterX(const _Getter1& getter) : Getter(getter) { }
void Fit(ImPlotAxis& x_axis, ImPlotAxis&) const {
for (int i = 0; i < Getter.Count; ++i) {
ImPlotPoint p = Getter(i);
x_axis.ExtendFit(p.x);
}
}
const _Getter1& Getter;
};
template <typename _Getter1>
struct FitterY {
FitterY(const _Getter1& getter) : Getter(getter) { }
void Fit(ImPlotAxis&, ImPlotAxis& y_axis) const {
for (int i = 0; i < Getter.Count; ++i) {
ImPlotPoint p = Getter(i);
y_axis.ExtendFit(p.y);
}
}
const _Getter1& Getter;
};
template <typename _Getter1, typename _Getter2>
struct Fitter2 {
Fitter2(const _Getter1& getter1, const _Getter2& getter2) : Getter1(getter1), Getter2(getter2) { }
void Fit(ImPlotAxis& x_axis, ImPlotAxis& y_axis) const {
for (int i = 0; i < Getter1.Count; ++i) {
ImPlotPoint p = Getter1(i);
x_axis.ExtendFitWith(y_axis, p.x, p.y);
y_axis.ExtendFitWith(x_axis, p.y, p.x);
}
for (int i = 0; i < Getter2.Count; ++i) {
ImPlotPoint p = Getter2(i);
x_axis.ExtendFitWith(y_axis, p.x, p.y);
y_axis.ExtendFitWith(x_axis, p.y, p.x);
}
}
const _Getter1& Getter1;
const _Getter2& Getter2;
};
template <typename _Getter1, typename _Getter2>
struct FitterBarV {
FitterBarV(const _Getter1& getter1, const _Getter2& getter2, double width) :
Getter1(getter1),
Getter2(getter2),
HalfWidth(width*0.5)
{ }
void Fit(ImPlotAxis& x_axis, ImPlotAxis& y_axis) const {
int count = ImMin(Getter1.Count, Getter2.Count);
for (int i = 0; i < count; ++i) {
ImPlotPoint p1 = Getter1(i); p1.x -= HalfWidth;
ImPlotPoint p2 = Getter2(i); p2.x += HalfWidth;
x_axis.ExtendFitWith(y_axis, p1.x, p1.y);
y_axis.ExtendFitWith(x_axis, p1.y, p1.x);
x_axis.ExtendFitWith(y_axis, p2.x, p2.y);
y_axis.ExtendFitWith(x_axis, p2.y, p2.x);
}
}
const _Getter1& Getter1;
const _Getter2& Getter2;
const double HalfWidth;
};
template <typename _Getter1, typename _Getter2>
struct FitterBarH {
FitterBarH(const _Getter1& getter1, const _Getter2& getter2, double height) :
Getter1(getter1),
Getter2(getter2),
HalfHeight(height*0.5)
{ }
void Fit(ImPlotAxis& x_axis, ImPlotAxis& y_axis) const {
int count = ImMin(Getter1.Count, Getter2.Count);
for (int i = 0; i < count; ++i) {
ImPlotPoint p1 = Getter1(i); p1.y -= HalfHeight;
ImPlotPoint p2 = Getter2(i); p2.y += HalfHeight;
x_axis.ExtendFitWith(y_axis, p1.x, p1.y);
y_axis.ExtendFitWith(x_axis, p1.y, p1.x);
x_axis.ExtendFitWith(y_axis, p2.x, p2.y);
y_axis.ExtendFitWith(x_axis, p2.y, p2.x);
}
}
const _Getter1& Getter1;
const _Getter2& Getter2;
const double HalfHeight;
};
struct FitterRect {
FitterRect(const ImPlotPoint& pmin, const ImPlotPoint& pmax) :
Pmin(pmin),
Pmax(pmax)
{ }
FitterRect(const ImPlotRect& rect) :
FitterRect(rect.Min(), rect.Max())
{ }
void Fit(ImPlotAxis& x_axis, ImPlotAxis& y_axis) const {
x_axis.ExtendFitWith(y_axis, Pmin.x, Pmin.y);
y_axis.ExtendFitWith(x_axis, Pmin.y, Pmin.x);
x_axis.ExtendFitWith(y_axis, Pmax.x, Pmax.y);
y_axis.ExtendFitWith(x_axis, Pmax.y, Pmax.x);
}
const ImPlotPoint Pmin;
const ImPlotPoint Pmax;
};
//-----------------------------------------------------------------------------
// [SECTION] Transformers
//-----------------------------------------------------------------------------
struct Transformer1 {
Transformer1(double pixMin, double pltMin, double pltMax, double m, double scaMin, double scaMax, ImPlotTransform fwd, void* data) :
ScaMin(scaMin),
ScaMax(scaMax),
PltMin(pltMin),
PltMax(pltMax),
PixMin(pixMin),
M(m),
TransformFwd(fwd),
TransformData(data)
{ }
template <typename T> IMPLOT_INLINE float operator()(T p) const {
if (TransformFwd != nullptr) {
double s = TransformFwd(p, TransformData);
double t = (s - ScaMin) / (ScaMax - ScaMin);
p = PltMin + (PltMax - PltMin) * t;
}
return (float)(PixMin + M * (p - PltMin));
}
double ScaMin, ScaMax, PltMin, PltMax, PixMin, M;
ImPlotTransform TransformFwd;
void* TransformData;
};
struct Transformer2 {
Transformer2(const ImPlotAxis& x_axis, const ImPlotAxis& y_axis) :
Tx(x_axis.PixelMin,
x_axis.Range.Min,
x_axis.Range.Max,
x_axis.ScaleToPixel,
x_axis.ScaleMin,
x_axis.ScaleMax,
x_axis.TransformForward,
x_axis.TransformData),
Ty(y_axis.PixelMin,
y_axis.Range.Min,
y_axis.Range.Max,
y_axis.ScaleToPixel,
y_axis.ScaleMin,
y_axis.ScaleMax,
y_axis.TransformForward,
y_axis.TransformData)
{ }
Transformer2(const ImPlotPlot& plot) :
Transformer2(plot.Axes[plot.CurrentX], plot.Axes[plot.CurrentY])
{ }
Transformer2() :
Transformer2(*GImPlot->CurrentPlot)
{ }
template <typename P> IMPLOT_INLINE ImVec2 operator()(const P& plt) const {
ImVec2 out;
out.x = Tx(plt.x);
out.y = Ty(plt.y);
return out;
}
template <typename T> IMPLOT_INLINE ImVec2 operator()(T x, T y) const {
ImVec2 out;
out.x = Tx(x);
out.y = Ty(y);
return out;
}
Transformer1 Tx;
Transformer1 Ty;
};
//-----------------------------------------------------------------------------
// [SECTION] Renderers
//-----------------------------------------------------------------------------
struct RendererBase {
RendererBase(int prims, int idx_consumed, int vtx_consumed) :
Prims(prims),
IdxConsumed(idx_consumed),
VtxConsumed(vtx_consumed)
{ }
const int Prims;
Transformer2 Transformer;
const int IdxConsumed;
const int VtxConsumed;
};
template <class _Getter>
struct RendererLineStrip : RendererBase {
RendererLineStrip(const _Getter& getter, ImU32 col, float weight) :
RendererBase(getter.Count - 1, 6, 4),
Getter(getter),
Col(col),
HalfWeight(ImMax(1.0f,weight)*0.5f)
{
P1 = this->Transformer(Getter(0));
}
void Init(ImDrawList& draw_list) const {
GetLineRenderProps(draw_list, HalfWeight, UV0, UV1);
}
IMPLOT_INLINE bool Render(ImDrawList& draw_list, const ImRect& cull_rect, int prim) const {
ImVec2 P2 = this->Transformer(Getter(prim + 1));
if (!cull_rect.Overlaps(ImRect(ImMin(P1, P2), ImMax(P1, P2)))) {
P1 = P2;
return false;
}
PrimLine(draw_list,P1,P2,HalfWeight,Col,UV0,UV1);
P1 = P2;
return true;
}
const _Getter& Getter;
const ImU32 Col;
mutable float HalfWeight;
mutable ImVec2 P1;
mutable ImVec2 UV0;
mutable ImVec2 UV1;
};
template <class _Getter>
struct RendererLineStripSkip : RendererBase {
RendererLineStripSkip(const _Getter& getter, ImU32 col, float weight) :
RendererBase(getter.Count - 1, 6, 4),
Getter(getter),
Col(col),
HalfWeight(ImMax(1.0f,weight)*0.5f)
{
P1 = this->Transformer(Getter(0));
}
void Init(ImDrawList& draw_list) const {
GetLineRenderProps(draw_list, HalfWeight, UV0, UV1);
}
IMPLOT_INLINE bool Render(ImDrawList& draw_list, const ImRect& cull_rect, int prim) const {
ImVec2 P2 = this->Transformer(Getter(prim + 1));
if (!cull_rect.Overlaps(ImRect(ImMin(P1, P2), ImMax(P1, P2)))) {
if (!ImNan(P2.x) && !ImNan(P2.y))
P1 = P2;
return false;
}
PrimLine(draw_list,P1,P2,HalfWeight,Col,UV0,UV1);
if (!ImNan(P2.x) && !ImNan(P2.y))
P1 = P2;
return true;
}
const _Getter& Getter;
const ImU32 Col;
mutable float HalfWeight;
mutable ImVec2 P1;
mutable ImVec2 UV0;
mutable ImVec2 UV1;
};
template <class _Getter>
struct RendererLineSegments1 : RendererBase {
RendererLineSegments1(const _Getter& getter, ImU32 col, float weight) :
RendererBase(getter.Count / 2, 6, 4),
Getter(getter),
Col(col),
HalfWeight(ImMax(1.0f,weight)*0.5f)
{ }
void Init(ImDrawList& draw_list) const {
GetLineRenderProps(draw_list, HalfWeight, UV0, UV1);
}
IMPLOT_INLINE bool Render(ImDrawList& draw_list, const ImRect& cull_rect, int prim) const {
ImVec2 P1 = this->Transformer(Getter(prim*2+0));
ImVec2 P2 = this->Transformer(Getter(prim*2+1));
if (!cull_rect.Overlaps(ImRect(ImMin(P1, P2), ImMax(P1, P2))))
return false;
PrimLine(draw_list,P1,P2,HalfWeight,Col,UV0,UV1);
return true;
}
const _Getter& Getter;
const ImU32 Col;
mutable float HalfWeight;
mutable ImVec2 UV0;
mutable ImVec2 UV1;
};
template <class _Getter1, class _Getter2>
struct RendererLineSegments2 : RendererBase {
RendererLineSegments2(const _Getter1& getter1, const _Getter2& getter2, ImU32 col, float weight) :
RendererBase(ImMin(getter1.Count, getter1.Count), 6, 4),
Getter1(getter1),
Getter2(getter2),
Col(col),
HalfWeight(ImMax(1.0f,weight)*0.5f)
{}
void Init(ImDrawList& draw_list) const {
GetLineRenderProps(draw_list, HalfWeight, UV0, UV1);
}
IMPLOT_INLINE bool Render(ImDrawList& draw_list, const ImRect& cull_rect, int prim) const {
ImVec2 P1 = this->Transformer(Getter1(prim));
ImVec2 P2 = this->Transformer(Getter2(prim));
if (!cull_rect.Overlaps(ImRect(ImMin(P1, P2), ImMax(P1, P2))))
return false;
PrimLine(draw_list,P1,P2,HalfWeight,Col,UV0,UV1);
return true;
}
const _Getter1& Getter1;
const _Getter2& Getter2;
const ImU32 Col;
mutable float HalfWeight;
mutable ImVec2 UV0;
mutable ImVec2 UV1;
};
template <class _Getter1, class _Getter2>
struct RendererBarsFillV : RendererBase {
RendererBarsFillV(const _Getter1& getter1, const _Getter2& getter2, ImU32 col, double width) :
RendererBase(ImMin(getter1.Count, getter1.Count), 6, 4),
Getter1(getter1),
Getter2(getter2),
Col(col),
HalfWidth(width/2)
{}
void Init(ImDrawList& draw_list) const {
UV = draw_list._Data->TexUvWhitePixel;
}
IMPLOT_INLINE bool Render(ImDrawList& draw_list, const ImRect& cull_rect, int prim) const {
ImPlotPoint p1 = Getter1(prim);
ImPlotPoint p2 = Getter2(prim);
p1.x += HalfWidth;
p2.x -= HalfWidth;
ImVec2 P1 = this->Transformer(p1);
ImVec2 P2 = this->Transformer(p2);
float width_px = ImAbs(P1.x-P2.x);