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implot/implot.cpp
Evan Pezent 3c1ef11525 add custom rendering utils
2020-04-29 15:39:02 -05:00

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// MIT License
// Copyright (c) 2020 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 v0.1 WIP
#ifndef IMGUI_DEFINE_MATH_OPERATORS
#define IMGUI_DEFINE_MATH_OPERATORS
#endif
#include <implot.h>
#include <imgui_internal.h>
#define IM_NORMALIZE2F_OVER_ZERO(VX, VY) \
{ \
float d2 = VX * VX + VY * VY; \
if (d2 > 0.0f) { \
float inv_len = 1.0f / ImSqrt(d2); \
VX *= inv_len; \
VY *= inv_len; \
} \
}
// Special Color used to specific that a plot item color should set determined automatically.
#define IM_COL_AUTO ImVec4(0,0,0,-1)
ImPlotStyle::ImPlotStyle() {
LineWeight = 1;
Marker = ImMarker_None;
MarkerSize = 5;
MarkerWeight = 1;
ErrorBarSize = 5;
ErrorBarWeight = 1.5;
Colors[ImPlotCol_Line] = IM_COL_AUTO;
Colors[ImPlotCol_Fill] = IM_COL_AUTO;
Colors[ImPlotCol_MarkerOutline] = IM_COL_AUTO;
Colors[ImPlotCol_MarkerFill] = IM_COL_AUTO;
Colors[ImPlotCol_ErrorBar] = IM_COL_AUTO;
Colors[ImPlotCol_FrameBg] = IM_COL_AUTO;
Colors[ImPlotCol_PlotBg] = IM_COL_AUTO;
Colors[ImPlotCol_PlotBorder] = IM_COL_AUTO;
Colors[ImPlotCol_XAxis] = IM_COL_AUTO;
Colors[ImPlotCol_YAxis] = IM_COL_AUTO;
Colors[ImPlotCol_Selection] = ImVec4(1,1,0,1);
Colors[ImPlotCol_Query] = ImVec4(0,1,0,1);
}
ImPlotRange::ImPlotRange() {
XMin = XMax = YMin = YMax = NAN;
}
bool ImPlotRange::Contains(const ImVec2& p) {
return p.x >= XMin && p.x <= XMax && p.y >= YMin && p.y <= YMax;
}
namespace ImGui {
namespace {
//=============================================================================
// General Utils
//=============================================================================
/// Returns true if a flag is set
template <typename TSet, typename TFlag>
inline bool HasFlag(TSet set, TFlag flag) {
return (set & flag) == flag;
}
/// Flips a flag in a flagset
template <typename TSet, typename TFlag>
inline void FlipFlag(TSet& set, TFlag flag) {
HasFlag(set, flag) ? set &= ~flag : set |= flag;
}
/// Linearly remaps float x from [x0 x1] to [y0 y1].
inline float Remap(float x, float x0, float x1, float y0, float y1) {
return y0 + (x - x0) * (y1 - y0) / (x1 - x0);
}
inline float ConstrainNan(float val) {
return val == NAN || val == -NAN ? 0 : val;
}
inline float ConstrainInf(float val) {
return val == INFINITY ? FLT_MAX : val == -INFINITY ? -FLT_MAX : val;
}
inline float ConstrainLog(float val) {
return val <= 0 ? 0.001 : val;
}
inline bool NanOrInf(float val) {
return val == INFINITY || val == -INFINITY || val == NAN || val == -NAN;
}
/// Utility function to that rounds x to powers of 2,5 and 10 for generating axis labels
/// Taken from Graphics Gems 1 Chapter 11.2, "Nice Numbers for Graph Labels"
inline double NiceNum(double x, bool round) {
double f; /* fractional part of x */
double nf; /* nice, rounded fraction */
int expv = (int)floor(log10(x));
f = x / ImPow(10.0, (double)expv); /* between 1 and 10 */
if (round)
if (f < 1.5)
nf = 1;
else if (f < 3)
nf = 2;
else if (f < 7)
nf = 5;
else
nf = 10;
else if (f <= 1)
nf = 1;
else if (f <= 2)
nf = 2;
else if (f <= 5)
nf = 5;
else
nf = 10;
return nf * ImPow(10.0, expv);
}
/// Draws vertical text. The position is the bottom left of the text rect.
inline void AddTextVertical(ImDrawList *DrawList, const char *text, ImVec2 pos, ImU32 text_color) {
pos.x = IM_ROUND(pos.x);
pos.y = IM_ROUND(pos.y);
ImFont * font = GImGui->Font;
const ImFontGlyph *glyph;
char c;
while ((c = *text++)) {
glyph = font->FindGlyph(c);
if (!glyph)
continue;
DrawList->PrimReserve(6, 4);
DrawList->PrimQuadUV(
pos + ImVec2(glyph->Y0, -glyph->X0), pos + ImVec2(glyph->Y0, -glyph->X1),
pos + ImVec2(glyph->Y1, -glyph->X1), pos + ImVec2(glyph->Y1, -glyph->X0),
ImVec2(glyph->U0, glyph->V0), ImVec2(glyph->U1, glyph->V0),
ImVec2(glyph->U1, glyph->V1), ImVec2(glyph->U0, glyph->V1), text_color);
pos.y -= glyph->AdvanceX;
}
}
/// Calculates the size of vertical text
inline ImVec2 CalcTextSizeVertical(const char *text) {
ImVec2 sz = CalcTextSize(text);
return ImVec2(sz.y, sz.x);
}
//=============================================================================
// Structs
//=============================================================================
/// Tick mark info
struct ImTick {
ImTick(double value, bool major, bool render_label = true) {
PlotPos = value;
Major = major;
RenderLabel = render_label;
}
double PlotPos;
float PixelPos;
bool Major;
ImVec2 Size;
int TextOffset;
bool RenderLabel;
};
struct ImPlotItem {
ImPlotItem();
~ImPlotItem() { ID = 0; }
bool Show;
bool Highlight;
ImVec4 Color;
int NameOffset;
bool Active;
ImGuiID ID;
};
/// Plot axis structure. You shouldn't need to construct this!
struct ImPlotAxis {
ImPlotAxis() {
Dragging = false;
Min = 0;
Max = 1;
Divisions = 3;
Subdivisions = 10;
Flags = ImAxisFlags_Default;
}
float Range() { return Max - Min; }
bool Dragging;
float Min;
float Max;
int Divisions;
int Subdivisions;
ImAxisFlags Flags;
};
/// Holds Plot state information that must persist between frames
struct ImPlot {
ImPlot() {
Selecting = Querying = Queried = DraggingQuery = false;
SelectStart = QueryStart = ImVec2(0,0);
Flags = ImPlotFlags_Default;
ColorIdx = 0;
}
ImPool<ImPlotItem> Items;
ImRect BB_Legend;
bool Selecting;
ImVec2 SelectStart;
bool Querying;
bool Queried;
ImVec2 QueryStart;
ImRect QueryRect; // relative to BB_grid!!
bool DraggingQuery;
ImPlotRange QueryRange;
ImPlotAxis XAxis;
ImPlotAxis YAxis;
ImPlotFlags Flags;
int ColorIdx;
};
struct ImNextPlotData {
ImNextPlotData() {
HasXRange = false;
HasYRange = false;
}
ImGuiCond XRangeCond;
ImGuiCond YRangeCond;
bool HasXRange;
bool HasYRange;
float XMin, XMax, YMin, YMax;
};
/// Holds Plot state information that must persist only between calls to BeginPlot()/EndPlot()
struct ImPlotContext {
ImPlotContext() {
CurrentPlot = NULL;
RestorePlotPalette();
}
/// ALl Plots
ImPool<ImPlot> Plots;
/// Current Plot
ImPlot* CurrentPlot;
// Legend
ImVector<int> _LegendIndices;
ImGuiTextBuffer _LegendLabels;
const char* GetLegendLabel(int i) const {
ImPlotItem* item = CurrentPlot->Items.GetByIndex(_LegendIndices[i]);
IM_ASSERT(item->NameOffset != -1 && item->NameOffset < _LegendLabels.Buf.Size);
return _LegendLabels.Buf.Data + item->NameOffset;
}
ImPlotItem* GetLegendItem(int i) {
return CurrentPlot->Items.GetByIndex(_LegendIndices[i]);
}
int GetLegendCount() const {
return _LegendIndices.size();
}
ImPlotItem* RegisterItem(const char* label_id) {
ImGuiID id = ImGui::GetID(label_id);
ImPlotItem* item = CurrentPlot->Items.GetOrAddByKey(id);
int idx = CurrentPlot->Items.GetIndex(item);
item->Active = true;
item->ID = id;
_LegendIndices.push_back(idx);
item->NameOffset = _LegendLabels.size();
_LegendLabels.append(label_id, label_id + strlen(label_id) + 1);
if (item->Show)
VisibleItemCount++;
return item;
}
// Bounding regions
ImRect BB_Frame;
ImRect BB_Canvas;
ImRect BB_Grid;
// Hover states
bool Hov_Frame;
bool Hov_Grid;
// Colors
ImU32 Col_Frame, Col_Bg, Col_Border,
Col_Txt, Col_TxtDis,
Col_SlctBg, Col_SlctBd,
Col_QryBg, Col_QryBd,
Col_XMajor, Col_XMinor, Col_XTxt,
Col_YMajor, Col_YMinor, Col_YTxt;
// Tick marks buffers
ImVector<ImTick> XTicks, YTicks;
ImGuiTextBuffer XTickLabels, YTickLabels;
// Transformations
ImRect PixelRange;
float Mx, My;
float LogDenX, LogDenY;
inline ImVec2 ToPixels(float x, float y) {
ImVec2 out;
if (HasFlag(CurrentPlot->XAxis.Flags, ImAxisFlags_LogScale)) {
float t = log10(x / CurrentPlot->XAxis.Min) / LogDenX;
x = ImLerp(CurrentPlot->XAxis.Min, CurrentPlot->XAxis.Max, t);
}
if (HasFlag(CurrentPlot->YAxis.Flags, ImAxisFlags_LogScale)) {
float t = log10(y / CurrentPlot->YAxis.Min) / LogDenY;
y = ImLerp(CurrentPlot->YAxis.Min, CurrentPlot->YAxis.Max, t);
}
out.x = PixelRange.Min.x + Mx * (x - CurrentPlot->XAxis.Min);
out.y = PixelRange.Min.y + My * (y - CurrentPlot->YAxis.Min);
return out;
}
inline ImVec2 ToPixels(const ImVec2& in) {
return ToPixels(in.x, in.y);
}
inline ImVec2 FromPixels(const ImVec2& in) {
ImVec2 out;
out.x = (in.x - PixelRange.Min.x) / Mx + CurrentPlot->XAxis.Min;
out.y = (in.y - PixelRange.Min.y) / My + CurrentPlot->YAxis.Min;
if (HasFlag(CurrentPlot->XAxis.Flags, ImAxisFlags_LogScale)) {
float t = (out.x - CurrentPlot->XAxis.Min) / (CurrentPlot->XAxis.Max - CurrentPlot->XAxis.Min);
out.x = pow(10, t * LogDenX) * CurrentPlot->XAxis.Min;
}
if (HasFlag(CurrentPlot->YAxis.Flags, ImAxisFlags_LogScale)) {
float t = (out.y - CurrentPlot->YAxis.Min) / (CurrentPlot->YAxis.Max - CurrentPlot->YAxis.Min);
out.y = pow(10, t * LogDenY) * CurrentPlot->YAxis.Min;
}
return out;
}
inline void UpdateTransforms() {
// get pixels for transforms
PixelRange = ImRect(HasFlag(CurrentPlot->XAxis.Flags, ImAxisFlags_Invert) ? BB_Grid.Max.x : BB_Grid.Min.x,
HasFlag(CurrentPlot->YAxis.Flags, ImAxisFlags_Invert) ? BB_Grid.Min.y : BB_Grid.Max.y,
HasFlag(CurrentPlot->XAxis.Flags, ImAxisFlags_Invert) ? BB_Grid.Min.x : BB_Grid.Max.x,
HasFlag(CurrentPlot->YAxis.Flags, ImAxisFlags_Invert) ? BB_Grid.Max.y : BB_Grid.Min.y);
Mx = (PixelRange.Max.x - PixelRange.Min.x) / (CurrentPlot->XAxis.Max - CurrentPlot->XAxis.Min);
My = (PixelRange.Max.y - PixelRange.Min.y) / (CurrentPlot->YAxis.Max - CurrentPlot->YAxis.Min);
LogDenX = log10(CurrentPlot->XAxis.Max / CurrentPlot->XAxis.Min);
LogDenY = log10(CurrentPlot->YAxis.Max / CurrentPlot->YAxis.Min);
}
/// Returns the next unused default plot color
ImVec4 NextColor() {
auto col = ColorMap[CurrentPlot->ColorIdx % ColorMap.size()];
CurrentPlot->ColorIdx++;
return col;
}
inline void FitPoint(const ImVec2& p) {
if (!NanOrInf(p.x)) {
Extents.Min.x = p.x < Extents.Min.x ? p.x : Extents.Min.x;
Extents.Max.x = p.x > Extents.Max.x ? p.x : Extents.Max.x;
}
if (!NanOrInf(p.y)) {
Extents.Min.y = p.y < Extents.Min.y ? p.y : Extents.Min.y;
Extents.Max.y = p.y > Extents.Max.y ? p.y : Extents.Max.y;
}
}
// Data extents
ImRect Extents;
bool FitThisFrame;
int VisibleItemCount;
// Render flags
bool RenderX, RenderY;
// Mouse pos
ImVec2 LastMousePos;
// Style
ImVector<ImVec4> ColorMap;
ImPlotStyle Style;
ImVector<ImGuiColorMod> ColorModifiers; // Stack for PushStyleColor()/PopStyleColor()
ImVector<ImGuiStyleMod> StyleModifiers; // Stack for PushStyleVar()/PopStyleVar()
ImNextPlotData NextPlotData;
};
/// Global plot context
static ImPlotContext gp;
ImPlotItem::ImPlotItem() {
Show = true;
Highlight = false;
Color = gp.NextColor();
NameOffset = -1;
Active = true;
ID = 0;
}
//=============================================================================
// Tick Utils
//=============================================================================
inline void GetTicks(float tMin, float tMax, int nMajor, int nMinor, bool logscale, ImVector<ImTick> &out) {
out.shrink(0);
if (logscale) {
if (tMin <= 0 || tMax <= 0)
return;
int exp_min = (int)(ImFloor(log10(tMin)));
int exp_max = (int)(ImCeil(log10(tMax)));
for (int e = exp_min - 1; e < exp_max + 1; ++e) {
double major1 = ImPow(10, (double)(e));
double major2 = ImPow(10, (double)(e + 1));
double interval = (major2 - major1) / 9;
if (major1 >= (tMin - FLT_EPSILON) && major1 <= (tMax + FLT_EPSILON))
out.push_back(ImTick(major1, true));
for (int i = 1; i < 9; ++i) {
double minor = major1 + i * interval;
if (minor >= (tMin - FLT_EPSILON) && minor <= (tMax + FLT_EPSILON))
out.push_back(ImTick(minor, false, false));
}
}
}
else {
const double range = NiceNum(tMax - tMin, 0);
const double interval = NiceNum(range / (nMajor - 1), 1);
const double graphmin = floor(tMin / interval) * interval;
const double graphmax = ceil(tMax / interval) * interval;
for (double major = graphmin; major < graphmax + 0.5 * interval; major += interval) {
if (major >= tMin && major <= tMax)
out.push_back(ImTick(major, true));
for (int i = 1; i < nMinor; ++i) {
double minor = major + i * interval / nMinor;
if (minor >= tMin && minor <= tMax)
out.push_back(ImTick(minor, false));
}
}
}
}
inline void LabelTicks(ImVector<ImTick> &ticks, bool scientific, ImGuiTextBuffer& buffer) {
buffer.Buf.resize(0);
char temp[32];
for (auto &tk : ticks) {
if (tk.RenderLabel) {
tk.TextOffset = buffer.size();
if (scientific)
sprintf(temp, "%.0e", tk.PlotPos);
else
sprintf(temp, "%g", tk.PlotPos);
buffer.append(temp, temp + strlen(temp) + 1);
tk.Size = CalcTextSize(buffer.Buf.Data + tk.TextOffset);
}
}
}
} // private namespace
//=============================================================================
// BeginPlot()
//=============================================================================
bool BeginPlot(const char* title, const char* x_label, const char* y_label, const ImVec2& size, ImPlotFlags flags, ImAxisFlags x_flags, ImAxisFlags y_flags) {
IM_ASSERT_USER_ERROR(gp.CurrentPlot == NULL, "Mismatched BeginPlot()/EndPlot()!");
// FRONT MATTER -----------------------------------------------------------
ImGuiContext &G = *GImGui;
ImGuiWindow * Window = G.CurrentWindow;
if (Window->SkipItems) {
gp.NextPlotData = ImNextPlotData();
return false;
}
ImGui::BeginChild(title, size);
Window = ImGui::GetCurrentWindow();
Window->ScrollMax.y = 1.0f;
const ImGuiID ID = Window->GetID(title);
ImDrawList & DrawList = *Window->DrawList;
const ImGuiStyle &Style = G.Style;
const ImGuiIO & IO = GetIO();
bool just_created = gp.Plots.GetByKey(ID) == NULL;
gp.CurrentPlot = gp.Plots.GetOrAddByKey(ID);
ImPlot &plot = *gp.CurrentPlot;
if (just_created) {
plot.Flags = flags;
plot.XAxis.Flags = x_flags;
plot.YAxis.Flags = y_flags;
}
// NextPlotData -----------------------------------------------------------
if (gp.NextPlotData.HasXRange) {
if (just_created || gp.NextPlotData.XRangeCond == ImGuiCond_Always)
{
plot.XAxis.Min = gp.NextPlotData.XMin;
plot.XAxis.Max = gp.NextPlotData.XMax;
}
}
if (gp.NextPlotData.HasYRange) {
if (just_created || gp.NextPlotData.YRangeCond == ImGuiCond_Always)
{
plot.YAxis.Min = gp.NextPlotData.YMin;
plot.YAxis.Max = gp.NextPlotData.YMax;
}
}
// AXIS STATES ------------------------------------------------------------
const bool flip_x = HasFlag(plot.XAxis.Flags, ImAxisFlags_Invert);
const bool lock_x_min = HasFlag(plot.XAxis.Flags, ImAxisFlags_LockMin);
const bool lock_x_max = HasFlag(plot.XAxis.Flags, ImAxisFlags_LockMax);
const bool lock_x = (lock_x_min && lock_x_max) || (gp.NextPlotData.HasXRange && gp.NextPlotData.XRangeCond == ImGuiCond_Always);
const bool flip_y = HasFlag(plot.YAxis.Flags, ImAxisFlags_Invert);
const bool lock_y_min = HasFlag(plot.YAxis.Flags, ImAxisFlags_LockMin);
const bool lock_y_max = HasFlag(plot.YAxis.Flags, ImAxisFlags_LockMax);
const bool lock_y = (lock_y_min && lock_y_max) || (gp.NextPlotData.HasYRange && gp.NextPlotData.YRangeCond == ImGuiCond_Always);
const bool lock_plot = lock_x && lock_y;
// CONSTRAINTS ------------------------------------------------------------
plot.XAxis.Min = ConstrainNan(ConstrainInf(plot.XAxis.Min));
plot.XAxis.Max = ConstrainNan(ConstrainInf(plot.XAxis.Max));
plot.YAxis.Min = ConstrainNan(ConstrainInf(plot.YAxis.Min));
plot.YAxis.Max = ConstrainNan(ConstrainInf(plot.YAxis.Max));
if (HasFlag(plot.XAxis.Flags, ImAxisFlags_LogScale))
plot.XAxis.Min = ConstrainLog(plot.XAxis.Min);
if (HasFlag(plot.XAxis.Flags, ImAxisFlags_LogScale))
plot.XAxis.Max = ConstrainLog(plot.XAxis.Max);
if (HasFlag(plot.YAxis.Flags, ImAxisFlags_LogScale))
plot.YAxis.Min = ConstrainLog(plot.YAxis.Min);
if (HasFlag(plot.YAxis.Flags, ImAxisFlags_LogScale))
plot.YAxis.Max = ConstrainLog(plot.YAxis.Max);
if (plot.XAxis.Max <= plot.XAxis.Min)
plot.XAxis.Max = plot.XAxis.Min + FLT_EPSILON;
if (plot.YAxis.Max <= plot.YAxis.Min)
plot.YAxis.Max = plot.YAxis.Min + FLT_EPSILON;
// adaptive divisions
if (HasFlag(plot.XAxis.Flags, ImAxisFlags_Adaptive)) {
plot.XAxis.Divisions = (int)IM_ROUND(0.003 * gp.BB_Canvas.GetWidth());
if (plot.XAxis.Divisions < 2)
plot.XAxis.Divisions = 2;
}
if (HasFlag(plot.YAxis.Flags, ImAxisFlags_Adaptive)) {
plot.YAxis.Divisions = (int)IM_ROUND(0.003 * gp.BB_Canvas.GetHeight());
if (plot.YAxis.Divisions < 2)
plot.YAxis.Divisions = 2;
}
// COLORS -----------------------------------------------------------------
gp.Col_Frame = gp.Style.Colors[ImPlotCol_FrameBg].w == -1 ? GetColorU32(ImGuiCol_FrameBg) : GetColorU32(gp.Style.Colors[ImPlotCol_FrameBg]);
gp.Col_Bg = gp.Style.Colors[ImPlotCol_PlotBg].w == -1 ? GetColorU32(ImGuiCol_WindowBg) : GetColorU32(gp.Style.Colors[ImPlotCol_PlotBg]);
gp.Col_Border = gp.Style.Colors[ImPlotCol_PlotBorder].w == -1 ? GetColorU32(ImGuiCol_Text, 0.5f) : GetColorU32(gp.Style.Colors[ImPlotCol_PlotBorder]);
const ImVec4 col_xAxis = gp.Style.Colors[ImPlotCol_XAxis].w == -1 ? ImGui::GetStyle().Colors[ImGuiCol_Text] * ImVec4(1, 1, 1, 0.25f) : gp.Style.Colors[ImPlotCol_XAxis];
gp.Col_XMajor = GetColorU32(col_xAxis);
gp.Col_XMinor = GetColorU32(col_xAxis * ImVec4(1, 1, 1, 0.25f));
gp.Col_XTxt = GetColorU32({col_xAxis.x, col_xAxis.y, col_xAxis.z, 1});
const ImVec4 col_yAxis = gp.Style.Colors[ImPlotCol_YAxis].w == -1 ? ImGui::GetStyle().Colors[ImGuiCol_Text] * ImVec4(1, 1, 1, 0.25f) : gp.Style.Colors[ImPlotCol_YAxis];
gp.Col_YMajor = GetColorU32(col_yAxis);
gp.Col_YMinor = GetColorU32(col_yAxis * ImVec4(1, 1, 1, 0.25f));
gp.Col_YTxt = GetColorU32({col_yAxis.x, col_yAxis.y, col_yAxis.z, 1});
gp.Col_Txt = GetColorU32(ImGuiCol_Text);
gp.Col_TxtDis = GetColorU32(ImGuiCol_TextDisabled);
gp.Col_SlctBg = GetColorU32(gp.Style.Colors[ImPlotCol_Selection] * ImVec4(1,1,1,0.25f));
gp.Col_SlctBd = GetColorU32(gp.Style.Colors[ImPlotCol_Selection]);
gp.Col_QryBg = GetColorU32(gp.Style.Colors[ImPlotCol_Query] * ImVec4(1,1,1,0.25f));
gp.Col_QryBd = GetColorU32(gp.Style.Colors[ImPlotCol_Query]);
// BB AND HOVER -----------------------------------------------------------
// frame
const ImVec2 frame_size = CalcItemSize(size, 100, 100);
gp.BB_Frame = ImRect(Window->DC.CursorPos, Window->DC.CursorPos + frame_size);
ItemSize(gp.BB_Frame);
if (!ItemAdd(gp.BB_Frame, 0, &gp.BB_Frame)) {
gp.NextPlotData = ImNextPlotData();
gp.CurrentPlot = NULL;
ImGui::EndChild();
return false;
}
gp.Hov_Frame = ItemHoverable(gp.BB_Frame, ID);
RenderFrame(gp.BB_Frame.Min, gp.BB_Frame.Max, gp.Col_Frame, true, Style.FrameRounding);
// canvas bb
gp.BB_Canvas = ImRect(gp.BB_Frame.Min + Style.WindowPadding, gp.BB_Frame.Max - Style.WindowPadding);
gp.RenderX = (HasFlag(plot.XAxis.Flags, ImAxisFlags_GridLines) ||
HasFlag(plot.XAxis.Flags, ImAxisFlags_TickMarks) ||
HasFlag(plot.XAxis.Flags, ImAxisFlags_TickLabels)) && plot.XAxis.Divisions > 1;
gp.RenderY = (HasFlag(plot.YAxis.Flags, ImAxisFlags_GridLines) ||
HasFlag(plot.YAxis.Flags, ImAxisFlags_TickMarks) ||
HasFlag(plot.YAxis.Flags, ImAxisFlags_TickLabels)) && plot.YAxis.Divisions > 1;
// get ticks
if (gp.RenderX)
GetTicks(plot.XAxis.Min, plot.XAxis.Max, plot.XAxis.Divisions, plot.XAxis.Subdivisions, HasFlag(plot.XAxis.Flags, ImAxisFlags_LogScale), gp.XTicks);
if (gp.RenderY)
GetTicks(plot.YAxis.Min, plot.YAxis.Max, plot.YAxis.Divisions, plot.YAxis.Subdivisions, HasFlag(plot.YAxis.Flags, ImAxisFlags_LogScale), gp.YTicks);
// label ticks
if (HasFlag(plot.XAxis.Flags, ImAxisFlags_TickLabels))
LabelTicks(gp.XTicks, HasFlag(plot.XAxis.Flags, ImAxisFlags_Scientific), gp.XTickLabels);
float max_label_width = 0;
if (HasFlag(plot.YAxis.Flags, ImAxisFlags_TickLabels)) {
LabelTicks(gp.YTicks, HasFlag(plot.YAxis.Flags, ImAxisFlags_Scientific), gp.YTickLabels);
for (auto &yt : gp.YTicks)
max_label_width = yt.Size.x > max_label_width ? yt.Size.x : max_label_width;
}
// grid bb
const ImVec2 title_size = CalcTextSize(title, NULL, true);
const float txt_off = 5;
const float txt_height = GetTextLineHeight();
const float pad_top = title_size.x > 0.0f ? txt_height + txt_off : 0;
const float pad_bot = (HasFlag(plot.XAxis.Flags, ImAxisFlags_TickLabels) ? txt_height + txt_off : 0) + (x_label ? txt_height + txt_off : 0);
const float pad_left = (HasFlag(plot.YAxis.Flags, ImAxisFlags_TickLabels) ? max_label_width + txt_off : 0) + (y_label ? txt_height + txt_off : 0);
gp.BB_Grid = ImRect(gp.BB_Canvas.Min + ImVec2(pad_left, pad_top), gp.BB_Canvas.Max - ImVec2(0, pad_bot));
gp.Hov_Grid = gp.BB_Grid.Contains(IO.MousePos);
// axis region bbs
const ImRect xAxisRegion_bb(gp.BB_Grid.Min + ImVec2(10, 0), {gp.BB_Grid.Max.x, gp.BB_Frame.Max.y});
const bool hov_x_axis_region = xAxisRegion_bb.Contains(IO.MousePos);
const ImRect yAxisRegion_bb({gp.BB_Frame.Min.x, gp.BB_Grid.Min.y}, gp.BB_Grid.Max - ImVec2(0, 10));
const bool hov_y_axis_region = yAxisRegion_bb.Contains(IO.MousePos);
// legend hovered from last frame
const bool hov_legend = HasFlag(plot.Flags, ImPlotFlags_Legend) ? gp.Hov_Frame && plot.BB_Legend.Contains(IO.MousePos) : false;
bool hov_query = false;
if (plot.Queried && !plot.Querying) {
ImRect bb_query;
if (HasFlag(plot.Flags, ImPlotFlags_PixelQuery)) {
bb_query = plot.QueryRect;
bb_query.Min += gp.BB_Grid.Min;
bb_query.Max += gp.BB_Grid.Min;
}
else {
gp.UpdateTransforms();
ImVec2 p1 = gp.ToPixels(plot.QueryRange.XMin, plot.QueryRange.YMin);
ImVec2 p2 = gp.ToPixels(plot.QueryRange.XMax, plot.QueryRange.YMax);
bb_query.Min = ImVec2(ImMin(p1.x,p2.x), ImMin(p1.y,p2.y));
bb_query.Max = ImVec2(ImMax(p1.x,p2.x), ImMax(p1.y,p2.y));
}
hov_query = bb_query.Contains(IO.MousePos);
}
// QUERY DRAG -------------------------------------------------------------
if (plot.DraggingQuery && (IO.MouseReleased[0] || !IO.MouseDown[0])) {
plot.DraggingQuery = false;
}
if (plot.DraggingQuery) {
SetMouseCursor(ImGuiMouseCursor_ResizeAll);
if (!HasFlag(plot.Flags, ImPlotFlags_PixelQuery)) {
ImVec2 p1 = gp.ToPixels(plot.QueryRange.XMin, plot.QueryRange.YMin);
ImVec2 p2 = gp.ToPixels(plot.QueryRange.XMax, plot.QueryRange.YMax);
plot.QueryRect.Min = ImVec2(ImMin(p1.x,p2.x), ImMin(p1.y,p2.y)) + IO.MouseDelta;
plot.QueryRect.Max = ImVec2(ImMax(p1.x,p2.x), ImMax(p1.y,p2.y)) + IO.MouseDelta;
p1 = gp.FromPixels(plot.QueryRect.Min);
p2 = gp.FromPixels(plot.QueryRect.Max);
plot.QueryRect.Min -= gp.BB_Grid.Min;
plot.QueryRect.Max -= gp.BB_Grid.Min;
plot.QueryRange.XMin = ImMin(p1.x, p2.x);
plot.QueryRange.XMax = ImMax(p1.x, p2.x);
plot.QueryRange.YMin = ImMin(p1.y, p2.y);
plot.QueryRange.YMax = ImMax(p1.y, p2.y);
}
else {
plot.QueryRect.Min += IO.MouseDelta;
plot.QueryRect.Max += IO.MouseDelta;
}
}
if (gp.Hov_Frame && hov_query && !plot.DraggingQuery && !plot.Selecting && !hov_legend) {
SetMouseCursor(ImGuiMouseCursor_ResizeAll);
if (IO.MouseDown[0] && !plot.XAxis.Dragging && !plot.YAxis.Dragging) {
plot.DraggingQuery = true;
}
}
// DRAG INPUT -------------------------------------------------------------
// end drags
if (plot.XAxis.Dragging && (IO.MouseReleased[0] || !IO.MouseDown[0])) {
plot.XAxis.Dragging = false;
G.IO.MouseDragMaxDistanceSqr[0] = 0;
}
if (plot.YAxis.Dragging && (IO.MouseReleased[0] || !IO.MouseDown[0])) {
plot.YAxis.Dragging = false;
G.IO.MouseDragMaxDistanceSqr[0] = 0;
}
// do drag
if (plot.XAxis.Dragging || plot.YAxis.Dragging) {
gp.UpdateTransforms();
ImVec2 plot_tl = gp.FromPixels(gp.BB_Grid.Min - IO.MouseDelta);
ImVec2 plot_br = gp.FromPixels(gp.BB_Grid.Max - IO.MouseDelta);
if (!lock_x && plot.XAxis.Dragging) {
if (!lock_x_min)
plot.XAxis.Min = flip_x ? plot_br.x : plot_tl.x;
if (!lock_x_max)
plot.XAxis.Max = flip_x ? plot_tl.x : plot_br.x;
}
if (!lock_y && plot.YAxis.Dragging) {
if (!lock_y_min)
plot.YAxis.Min = flip_y ? plot_tl.y : plot_br.y;
if (!lock_y_max)
plot.YAxis.Max = flip_y ? plot_br.y : plot_tl.y;
}
if ((lock_x && lock_y) || (lock_x && plot.XAxis.Dragging && !plot.YAxis.Dragging) || (lock_y && plot.YAxis.Dragging && !plot.XAxis.Dragging))
ImGui::SetMouseCursor(ImGuiMouseCursor_NotAllowed);
else if (lock_x || (!plot.XAxis.Dragging && plot.YAxis.Dragging))
ImGui::SetMouseCursor(ImGuiMouseCursor_ResizeNS);
else if (lock_y || (!plot.YAxis.Dragging && plot.XAxis.Dragging))
ImGui::SetMouseCursor(ImGuiMouseCursor_ResizeEW);
else
ImGui::SetMouseCursor(ImGuiMouseCursor_ResizeAll);
}
// start drag
if (gp.Hov_Frame && hov_x_axis_region && IO.MouseDragMaxDistanceSqr[0] > 5 && !plot.Selecting && !hov_legend && !hov_query && !plot.DraggingQuery)
plot.XAxis.Dragging = true;
if (gp.Hov_Frame && hov_y_axis_region && IO.MouseDragMaxDistanceSqr[0] > 5 && !plot.Selecting && !hov_legend && !hov_query && !plot.DraggingQuery)
plot.YAxis.Dragging = true;
// SCROLL INPUT -----------------------------------------------------------
if (gp.Hov_Frame && (hov_x_axis_region || hov_y_axis_region) && IO.MouseWheel != 0) {
gp.UpdateTransforms();
float zoom_rate = 0.1f;
if (IO.MouseWheel > 0)
zoom_rate = (-zoom_rate) / (1.0f + (2.0f * zoom_rate));
float tx = Remap(IO.MousePos.x, gp.BB_Grid.Min.x, gp.BB_Grid.Max.x, 0, 1);
float ty = Remap(IO.MousePos.y, gp.BB_Grid.Min.y, gp.BB_Grid.Max.y, 0, 1);
ImVec2 plot_tl = gp.FromPixels(gp.BB_Grid.Min - gp.BB_Grid.GetSize() * ImVec2(tx * zoom_rate, ty * zoom_rate));
ImVec2 plot_br = gp.FromPixels(gp.BB_Grid.Max + gp.BB_Grid.GetSize() * ImVec2((1 - tx) * zoom_rate, (1 - ty) * zoom_rate));
if (hov_x_axis_region && !lock_x) {
if (!lock_x_min)
plot.XAxis.Min = flip_x ? plot_br.x : plot_tl.x;
if (!lock_x_max)
plot.XAxis.Max = flip_x ? plot_tl.x : plot_br.x;
}
if (hov_y_axis_region && !lock_y) {
if (!lock_y_min)
plot.YAxis.Min = flip_y ? plot_tl.y : plot_br.y;
if (!lock_y_max)
plot.YAxis.Max = flip_y ? plot_br.y : plot_tl.y;
}
}
// BOX-SELECTION AND QUERY ------------------------------------------------
// confirm selection
if (plot.Selecting && (IO.MouseReleased[1] || !IO.MouseDown[1])) {
gp.UpdateTransforms();
ImVec2 select_size = plot.SelectStart - IO.MousePos;
if (HasFlag(plot.Flags, ImPlotFlags_Selection) && ImFabs(select_size.x) > 2 && ImFabs(select_size.y) > 2) {
ImVec2 p1 = gp.FromPixels(plot.SelectStart);
ImVec2 p2 = gp.FromPixels(IO.MousePos);
if (!lock_x_min && !IO.KeyAlt)
plot.XAxis.Min = ImMin(p1.x, p2.x);
if (!lock_x_max && !IO.KeyAlt)
plot.XAxis.Max = ImMax(p1.x, p2.x);
if (!lock_y_min && !IO.KeyShift)
plot.YAxis.Min = ImMin(p1.y, p2.y);
if (!lock_y_max && !IO.KeyShift)
plot.YAxis.Max = ImMax(p1.y, p2.y);
}
plot.Selecting = false;
}
// bad selection
if (plot.Selecting && (!HasFlag(plot.Flags, ImPlotFlags_Selection) || lock_plot) && ImLengthSqr(plot.SelectStart - IO.MousePos) > 4) {
ImGui::SetMouseCursor(ImGuiMouseCursor_NotAllowed);
}
// cancel selection
if (plot.Selecting && (IO.MouseClicked[0] || IO.MouseDown[0])) {
plot.Selecting = false;
}
// begin selection or query
if (gp.Hov_Frame && gp.Hov_Grid && IO.MouseClicked[1]) {
plot.SelectStart = IO.MousePos;
plot.Selecting = true;
}
// update query
if (plot.Querying) {
gp.UpdateTransforms();
plot.QueryRect.Min.x = IO.KeyAlt ? gp.BB_Grid.Min.x : ImMin(plot.QueryStart.x, IO.MousePos.x);
plot.QueryRect.Max.x = IO.KeyAlt ? gp.BB_Grid.Max.x : ImMax(plot.QueryStart.x, IO.MousePos.x);
plot.QueryRect.Min.y = IO.KeyShift ? gp.BB_Grid.Min.y : ImMin(plot.QueryStart.y, IO.MousePos.y);
plot.QueryRect.Max.y = IO.KeyShift ? gp.BB_Grid.Max.y : ImMax(plot.QueryStart.y, IO.MousePos.y);
ImVec2 p1 = gp.FromPixels(plot.QueryRect.Min);
ImVec2 p2 = gp.FromPixels(plot.QueryRect.Max);
plot.QueryRect.Min -= gp.BB_Grid.Min;
plot.QueryRect.Max -= gp.BB_Grid.Min;
plot.QueryRange.XMin = ImMin(p1.x, p2.x);
plot.QueryRange.XMax = ImMax(p1.x, p2.x);
plot.QueryRange.YMin = ImMin(p1.y, p2.y);
plot.QueryRange.YMax = ImMax(p1.y, p2.y);
}
// end query
if (plot.Querying && (IO.MouseReleased[2] || IO.MouseReleased[1])) {
plot.Querying = false;
if (plot.QueryRect.GetWidth() > 2 && plot.QueryRect.GetHeight() > 2) {
plot.Queried = true;
}
else {
plot.Queried = false;
plot.QueryRange = ImPlotRange();
}
}
// begin query
if ((gp.Hov_Frame && gp.Hov_Grid && IO.MouseClicked[2])) {
plot.QueryRect = ImRect(0,0,0,0);
plot.QueryRange = ImPlotRange();
plot.Querying = true;
plot.Queried = true;
plot.QueryStart = IO.MousePos;
}
// toggle between select/query
if (plot.Selecting && IO.KeyCtrl) {
plot.Selecting = false;
plot.QueryRect = ImRect(0,0,0,0);
plot.QueryRange = ImPlotRange();
plot.Querying = true;
plot.Queried = true;
plot.QueryStart = plot.SelectStart;
}
if (plot.Querying && !IO.KeyCtrl && !IO.MouseDown[2]) {
plot.Selecting = true;
plot.Querying = false;
plot.Queried = false;
plot.QueryRect = ImRect(0,0,0,0);
plot.QueryRange = ImPlotRange();
}
// DOUBLE CLICK -----------------------------------------------------------
if ( IO.MouseDoubleClicked[0] && gp.Hov_Frame && gp.Hov_Grid && !hov_legend && !hov_query)
gp.FitThisFrame = true;
else
gp.FitThisFrame = false;
// FOCUS ------------------------------------------------------------------
// focus window
if ((IO.MouseClicked[0] || IO.MouseClicked[1]) && gp.Hov_Frame)
FocusWindow(GetCurrentWindow());
gp.UpdateTransforms();
// set mouse position
gp.LastMousePos = gp.FromPixels(IO.MousePos);
// RENDER -----------------------------------------------------------------
// grid bg
DrawList.AddRectFilled(gp.BB_Grid.Min, gp.BB_Grid.Max, gp.Col_Bg);
// render axes
ImGui::PushClipRect(gp.BB_Grid.Min, gp.BB_Grid.Max, true);
// transform ticks
if (gp.RenderX) {
for (auto& xt : gp.XTicks)
xt.PixelPos = gp.ToPixels((float)xt.PlotPos, 0).x;
}
if (gp.RenderY) {
for (auto& yt : gp.YTicks)
yt.PixelPos = gp.ToPixels(0, (float)yt.PlotPos).y;
}
// render grid
if (HasFlag(plot.XAxis.Flags, ImAxisFlags_GridLines)) {
for (auto &xt : gp.XTicks)
DrawList.AddLine({xt.PixelPos, gp.BB_Grid.Min.y}, {xt.PixelPos, gp.BB_Grid.Max.y}, xt.Major ? gp.Col_XMajor : gp.Col_XMinor, 1);
}
if (HasFlag(plot.YAxis.Flags, ImAxisFlags_GridLines)) {
for (auto &yt : gp.YTicks)
DrawList.AddLine({gp.BB_Grid.Min.x, yt.PixelPos}, {gp.BB_Grid.Max.x, yt.PixelPos}, yt.Major ? gp.Col_YMajor : gp.Col_YMinor, 1);
}
ImGui::PopClipRect();
// render title
if (title_size.x > 0.0f) {
RenderText(ImVec2(gp.BB_Canvas.GetCenter().x - title_size.x * 0.5f, gp.BB_Canvas.Min.y), title, NULL, true);
}
// render labels
if (HasFlag(plot.XAxis.Flags, ImAxisFlags_TickLabels)) {
ImGui::PushClipRect(gp.BB_Frame.Min, gp.BB_Frame.Max, true);
for (auto &xt : gp.XTicks) {
if (xt.RenderLabel && xt.PixelPos >= gp.BB_Grid.Min.x - 1 && xt.PixelPos <= gp.BB_Grid.Max.x + 1)
DrawList.AddText({xt.PixelPos - xt.Size.x * 0.5f, gp.BB_Grid.Max.y + txt_off}, gp.Col_XTxt, gp.XTickLabels.Buf.Data + xt.TextOffset);
}
ImGui::PopClipRect();
}
if (x_label) {
const ImVec2 xLabel_size = CalcTextSize(x_label);
const ImVec2 xLabel_pos(gp.BB_Grid.GetCenter().x - xLabel_size.x * 0.5f,
gp.BB_Canvas.Max.y - txt_height);
DrawList.AddText(xLabel_pos, gp.Col_XTxt, x_label);
}
if (HasFlag(plot.YAxis.Flags, ImAxisFlags_TickLabels)) {
ImGui::PushClipRect(gp.BB_Frame.Min, gp.BB_Frame.Max, true);
for (auto &yt : gp.YTicks) {
if (yt.RenderLabel && yt.PixelPos >= gp.BB_Grid.Min.y - 1 && yt.PixelPos <= gp.BB_Grid.Max.y + 1)
DrawList.AddText({gp.BB_Grid.Min.x - txt_off - yt.Size.x, yt.PixelPos - 0.5f * yt.Size.y}, gp.Col_YTxt, gp.YTickLabels.Buf.Data + yt.TextOffset);
}
ImGui::PopClipRect();
}
if (y_label) {
const ImVec2 yLabel_size = CalcTextSizeVertical(y_label);
const ImVec2 yLabel_pos(gp.BB_Canvas.Min.x, gp.BB_Grid.GetCenter().y + yLabel_size.y * 0.5f);
AddTextVertical(&DrawList, y_label, yLabel_pos, gp.Col_YTxt);
}
// PREP -------------------------------------------------------------------
// push plot ID into stack
PushID(ID);
// Deactivate all existing items
for (int i = 0; i < plot.Items.GetSize(); ++i)
plot.Items.GetByIndex(i)->Active = false;
// reset items count
gp.VisibleItemCount = 0;
// reset extents
gp.Extents.Min.x = INFINITY;
gp.Extents.Min.y = INFINITY;
gp.Extents.Max.x = -INFINITY;
gp.Extents.Max.y = -INFINITY;
// clear item names
gp._LegendLabels.Buf.resize(0);
return true;
}
//=============================================================================
// Context Menu
//=============================================================================
inline void AxisMenu(ImPlotAxis& Axis) {
ImGui::PushItemWidth(75);
bool lock_min = HasFlag(Axis.Flags, ImAxisFlags_LockMin);
bool lock_max = HasFlag(Axis.Flags, ImAxisFlags_LockMax);
bool invert = HasFlag(Axis.Flags, ImAxisFlags_Invert);
bool logscale = HasFlag(Axis.Flags, ImAxisFlags_LogScale);
bool grid = HasFlag(Axis.Flags, ImAxisFlags_GridLines);
bool ticks = HasFlag(Axis.Flags, ImAxisFlags_TickMarks);
bool labels = HasFlag(Axis.Flags, ImAxisFlags_TickLabels);
if (ImGui::Checkbox("##LockMin", &lock_min))
FlipFlag(Axis.Flags, ImAxisFlags_LockMin);
ImGui::SameLine();
if (lock_min) {
ImGui::PushItemFlag(ImGuiItemFlags_Disabled, true);
ImGui::PushStyleVar(ImGuiStyleVar_Alpha, ImGui::GetStyle().Alpha * 0.25f);
}
ImGui::DragFloat("Min", &Axis.Min, 0.01f + 0.01f * (Axis.Max - Axis.Min), -INFINITY, Axis.Max - FLT_EPSILON);
if (lock_min) {
ImGui::PopItemFlag();
ImGui::PopStyleVar(); }
if (ImGui::Checkbox("##LockMax", &lock_max))
FlipFlag(Axis.Flags, ImAxisFlags_LockMax);
ImGui::SameLine();
if (lock_max) {
ImGui::PushItemFlag(ImGuiItemFlags_Disabled, true);
ImGui::PushStyleVar(ImGuiStyleVar_Alpha, ImGui::GetStyle().Alpha * 0.25f); }
ImGui::DragFloat("Max", &Axis.Max, 0.01f + 0.01f * (Axis.Max - Axis.Min), Axis.Min + FLT_EPSILON, INFINITY);
if (lock_max) {
ImGui::PopItemFlag();
ImGui::PopStyleVar();
}
ImGui::Separator();
if (ImGui::Checkbox("Invert", &invert))
FlipFlag(Axis.Flags, ImAxisFlags_Invert);
if (ImGui::Checkbox("Log Scale", &logscale))
FlipFlag(Axis.Flags, ImAxisFlags_LogScale);
ImGui::Separator();
if (ImGui::Checkbox("Grid Lines", &grid))
FlipFlag(Axis.Flags, ImAxisFlags_GridLines);
if (ImGui::Checkbox("Tick Marks", &ticks))
FlipFlag(Axis.Flags, ImAxisFlags_TickMarks);
if (ImGui::Checkbox("Labels", &labels))
FlipFlag(Axis.Flags, ImAxisFlags_TickLabels);
}
void PlotContextMenu(ImPlot& plot) {
if (ImGui::BeginMenu("X-Axis")) {
PushID("X");
AxisMenu(plot.XAxis);
PopID();
ImGui::EndMenu();
}
if (ImGui::BeginMenu("Y-Axis")) {
PushID("Y");
AxisMenu(plot.YAxis);
PopID();
ImGui::EndMenu();
}
ImGui::Separator();
if ((ImGui::BeginMenu("Settings"))) {
if (ImGui::MenuItem("Box Select",NULL,HasFlag(plot.Flags, ImPlotFlags_Selection))) {
FlipFlag(plot.Flags, ImPlotFlags_Selection);
}
if (ImGui::MenuItem("Pixel Query",NULL,HasFlag(plot.Flags, ImPlotFlags_PixelQuery))) {
FlipFlag(plot.Flags, ImPlotFlags_PixelQuery);
}
if (ImGui::MenuItem("Crosshairs",NULL,HasFlag(plot.Flags, ImPlotFlags_Crosshairs))) {
FlipFlag(plot.Flags, ImPlotFlags_Crosshairs);
}
if (ImGui::MenuItem("Mouse Position",NULL,HasFlag(plot.Flags, ImPlotFlags_MousePos))) {
FlipFlag(plot.Flags, ImPlotFlags_MousePos);
}
if (ImGui::MenuItem("Cull Data",NULL,HasFlag(plot.Flags, ImPlotFlags_CullData))) {
FlipFlag(plot.Flags, ImPlotFlags_CullData);
}
if (ImGui::MenuItem("Anti-Aliased Lines",NULL,HasFlag(plot.Flags, ImPlotFlags_AntiAliased))) {
FlipFlag(plot.Flags, ImPlotFlags_AntiAliased);
}
ImGui::EndMenu();
}
if (ImGui::MenuItem("Legend",NULL,HasFlag(plot.Flags, ImPlotFlags_Legend))) {
FlipFlag(plot.Flags, ImPlotFlags_Legend);
}
#if 0
if (ImGui::BeginMenu("Metrics")) {
ImGui::PushItemWidth(75);
ImGui::LabelText("Plots", "%d", gp.Plots.GetSize());
ImGui::LabelText("Color Modifiers", "%d", gp.ColorModifiers.size());
ImGui::LabelText("Style Modifiers", "%d", gp.StyleModifiers.size());
ImGui::PopItemWidth();
ImGui::EndMenu();
}
#endif
}
//=============================================================================
// EndPlot()
//=============================================================================
void EndPlot() {
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "Mismatched BeginPlot()/EndPlot()!");
ImPlot &plot = *gp.CurrentPlot;
ImGuiContext &G = *GImGui;
ImGuiWindow * Window = G.CurrentWindow;
ImDrawList & DrawList = *Window->DrawList;
const ImGuiIO & IO = GetIO();
// AXIS STATES ------------------------------------------------------------
const bool flip_x = HasFlag(plot.XAxis.Flags, ImAxisFlags_Invert);
const bool lock_x_min = HasFlag(plot.XAxis.Flags, ImAxisFlags_LockMin);
const bool lock_x_max = HasFlag(plot.XAxis.Flags, ImAxisFlags_LockMax);
const bool lock_x = (lock_x_min && lock_x_max) || (gp.NextPlotData.HasXRange && gp.NextPlotData.XRangeCond == ImGuiCond_Always);
const bool flip_y = HasFlag(plot.YAxis.Flags, ImAxisFlags_Invert);
const bool lock_y_min = HasFlag(plot.YAxis.Flags, ImAxisFlags_LockMin);
const bool lock_y_max = HasFlag(plot.YAxis.Flags, ImAxisFlags_LockMax);
const bool lock_y = (lock_y_min && lock_y_max) || (gp.NextPlotData.HasYRange && gp.NextPlotData.YRangeCond == ImGuiCond_Always);
const bool lock_plot = lock_x && lock_y;
// FINAL RENDER -----------------------------------------------------------
PushClipRect(gp.BB_Grid.Min, gp.BB_Grid.Max, true);
// render ticks
if (HasFlag(plot.XAxis.Flags, ImAxisFlags_TickMarks)) {
for (auto &xt : gp.XTicks)
DrawList.AddLine({xt.PixelPos, gp.BB_Grid.Max.y},{xt.PixelPos, gp.BB_Grid.Max.y - (xt.Major ? 10.0f : 5.0f)}, gp.Col_Border, 1);
}
if (HasFlag(plot.YAxis.Flags, ImAxisFlags_TickMarks)) {
for (auto &yt : gp.YTicks)
DrawList.AddLine({gp.BB_Grid.Min.x, yt.PixelPos}, {gp.BB_Grid.Min.x + (yt.Major ? 10.0f : 5.0f), yt.PixelPos}, gp.Col_Border, 1);
}
// render selection/query
if (plot.Selecting) {
ImRect select_bb(ImMin(IO.MousePos, plot.SelectStart), ImMax(IO.MousePos, plot.SelectStart));
if (plot.Selecting && !lock_plot && HasFlag(plot.Flags, ImPlotFlags_Selection)) {
if (IO.KeyAlt && IO.KeyShift && select_bb.GetWidth() > 2 && select_bb.GetHeight() > 2) {
DrawList.AddRectFilled(gp.BB_Grid.Min, gp.BB_Grid.Max, gp.Col_SlctBg);
DrawList.AddRect( gp.BB_Grid.Min, gp.BB_Grid.Max, gp.Col_SlctBd);
}
else if ((lock_x || IO.KeyAlt) && select_bb.GetHeight() > 2) {
DrawList.AddRectFilled(ImVec2(gp.BB_Grid.Min.x, select_bb.Min.y), ImVec2(gp.BB_Grid.Max.x, select_bb.Max.y), gp.Col_SlctBg);
DrawList.AddRect( ImVec2(gp.BB_Grid.Min.x, select_bb.Min.y), ImVec2(gp.BB_Grid.Max.x, select_bb.Max.y), gp.Col_SlctBd);
}
else if ((lock_y || IO.KeyShift) && select_bb.GetWidth() > 2) {
DrawList.AddRectFilled(ImVec2(select_bb.Min.x, gp.BB_Grid.Min.y), ImVec2(select_bb.Max.x, gp.BB_Grid.Max.y), gp.Col_SlctBg);
DrawList.AddRect( ImVec2(select_bb.Min.x, gp.BB_Grid.Min.y), ImVec2(select_bb.Max.x, gp.BB_Grid.Max.y), gp.Col_SlctBd);
}
else if (select_bb.GetWidth() > 2 && select_bb.GetHeight() > 2) {
DrawList.AddRectFilled(select_bb.Min, select_bb.Max, gp.Col_SlctBg);
DrawList.AddRect( select_bb.Min, select_bb.Max, gp.Col_SlctBd);
}
}
}
if (plot.Querying || (HasFlag(plot.Flags, ImPlotFlags_PixelQuery) && plot.Queried)) {
if (plot.QueryRect.GetWidth() > 2 && plot.QueryRect.GetHeight() > 2) {
DrawList.AddRectFilled(plot.QueryRect.Min + gp.BB_Grid.Min, plot.QueryRect.Max + gp.BB_Grid.Min, gp.Col_QryBg);
DrawList.AddRect( plot.QueryRect.Min + gp.BB_Grid.Min, plot.QueryRect.Max + gp.BB_Grid.Min, gp.Col_QryBd);
}
}
else if (plot.Queried) {
ImVec2 p1 = gp.ToPixels(plot.QueryRange.XMin, plot.QueryRange.YMin);
ImVec2 p2 = gp.ToPixels(plot.QueryRange.XMax, plot.QueryRange.YMax);
ImVec2 Min(ImMin(p1.x,p2.x), ImMin(p1.y,p2.y));
ImVec2 Max(ImMax(p1.x,p2.x), ImMax(p1.y,p2.y));
DrawList.AddRectFilled(Min, Max, gp.Col_QryBg);
DrawList.AddRect( Min, Max, gp.Col_QryBd);
}
// render legend
const float txt_ht = GetTextLineHeight();
const ImVec2 legend_offset(10, 10);
const ImVec2 legend_padding(5, 5);
const float legend_icon_size = txt_ht;
ImRect legend_content_bb;
int nItems = gp.GetLegendCount();
bool hov_legend = false;
if (HasFlag(plot.Flags, ImPlotFlags_Legend) && nItems > 0) {
// get max width
float max_label_width = 0;
for (int i = 0; i < nItems; ++i) {
const char* label = gp.GetLegendLabel(i);
auto labelWidth = CalcTextSize(label, NULL, true);
max_label_width = labelWidth.x > max_label_width ? labelWidth.x : max_label_width;
}
legend_content_bb = ImRect(gp.BB_Grid.Min + legend_offset, gp.BB_Grid.Min + legend_offset + ImVec2(max_label_width, nItems * txt_ht));
plot.BB_Legend = ImRect(legend_content_bb.Min, legend_content_bb.Max + legend_padding * 2 + ImVec2(legend_icon_size, 0));
hov_legend = HasFlag(plot.Flags, ImPlotFlags_Legend) ? gp.Hov_Frame && plot.BB_Legend.Contains(IO.MousePos) : false;
// render legend box
DrawList.AddRectFilled(plot.BB_Legend.Min, plot.BB_Legend.Max, GetColorU32(ImGuiCol_PopupBg));
DrawList.AddRect(plot.BB_Legend.Min, plot.BB_Legend.Max, gp.Col_Border);
// render each legend item
for (int i = 0; i < nItems; ++i) {
ImPlotItem* item = gp.GetLegendItem(i);
ImRect icon_bb;
icon_bb.Min = legend_content_bb.Min + legend_padding + ImVec2(0, i * txt_ht) + ImVec2(2, 2);
icon_bb.Max = legend_content_bb.Min + legend_padding + ImVec2(0, i * txt_ht) + ImVec2(legend_icon_size - 2, legend_icon_size - 2);
ImRect label_bb;
label_bb.Min = legend_content_bb.Min + legend_padding + ImVec2(0, i * txt_ht) + ImVec2(2, 2);
label_bb.Max = legend_content_bb.Min + legend_padding + ImVec2(0, i * txt_ht) + ImVec2(legend_content_bb.Max.x, legend_icon_size - 2);
ImU32 col_hl_txt;
if (HasFlag(plot.Flags, ImPlotFlags_Highlight) && hov_legend && (icon_bb.Contains(IO.MousePos) || label_bb.Contains(IO.MousePos))) {
item->Highlight = true;
col_hl_txt = GetColorU32(ImLerp(G.Style.Colors[ImGuiCol_Text], item->Color, 0.25f));
}
else
item->Highlight = false;
ImU32 iconColor;
if (hov_legend && icon_bb.Contains(IO.MousePos)) {
auto colAlpha = item->Color;
colAlpha.w = 0.5f;
iconColor = item->Show ? GetColorU32(colAlpha)
: GetColorU32(ImGuiCol_TextDisabled, 0.5f);
if (IO.MouseClicked[0])
item->Show = !item->Show;
} else {
iconColor = item->Show ? GetColorU32(item->Color) : gp.Col_TxtDis;
}
DrawList.AddRectFilled(icon_bb.Min, icon_bb.Max, iconColor, 1);
const char* label = gp.GetLegendLabel(i);
const char* text_display_end = FindRenderedTextEnd(label, NULL);
if (label != text_display_end)
DrawList.AddText(legend_content_bb.Min + legend_padding + ImVec2(legend_icon_size, i * txt_ht),
item->Show ? (item->Highlight ? col_hl_txt : gp.Col_Txt) : gp.Col_TxtDis, label, text_display_end);
}
}
// render crosshairs
if (HasFlag(plot.Flags, ImPlotFlags_Crosshairs) && gp.Hov_Grid && gp.Hov_Frame &&
!(plot.XAxis.Dragging || plot.YAxis.Dragging) && !plot.Selecting && !plot.Querying && !hov_legend) {
ImGui::SetMouseCursor(ImGuiMouseCursor_None);
ImVec2 xy = IO.MousePos;
ImVec2 h1(gp.BB_Grid.Min.x, xy.y);
ImVec2 h2(xy.x - 5, xy.y);
ImVec2 h3(xy.x + 5, xy.y);
ImVec2 h4(gp.BB_Grid.Max.x, xy.y);
ImVec2 v1(xy.x, gp.BB_Grid.Min.y);
ImVec2 v2(xy.x, xy.y - 5);
ImVec2 v3(xy.x, xy.y + 5);
ImVec2 v4(xy.x, gp.BB_Grid.Max.y);
DrawList.AddLine(h1, h2, gp.Col_Border);
DrawList.AddLine(h3, h4, gp.Col_Border);
DrawList.AddLine(v1, v2, gp.Col_Border);
DrawList.AddLine(v3, v4, gp.Col_Border);
}
// render mouse pos
if (HasFlag(plot.Flags, ImPlotFlags_MousePos) && gp.Hov_Grid) {
static char buffer[128];
sprintf(buffer, "%.2f,%.2f", gp.LastMousePos.x, gp.LastMousePos.y);
ImVec2 size = CalcTextSize(buffer);
ImVec2 pos = gp.BB_Grid.Max - size - ImVec2(5, 5);
DrawList.AddText(pos, gp.Col_Txt, buffer);
}
ImGui::PopClipRect();
// render border
DrawList.AddRect(gp.BB_Grid.Min, gp.BB_Grid.Max, gp.Col_Border);
// FIT DATA --------------------------------------------------------------
if (gp.FitThisFrame && (gp.VisibleItemCount > 0 || plot.Queried)) {
if (!HasFlag(plot.XAxis.Flags, ImAxisFlags_LockMin) && !NanOrInf(gp.Extents.Min.x))
plot.XAxis.Min = gp.Extents.Min.x;
if (!HasFlag(plot.XAxis.Flags, ImAxisFlags_LockMax) && !NanOrInf(gp.Extents.Max.x))
plot.XAxis.Max = gp.Extents.Max.x;
if (!HasFlag(plot.YAxis.Flags, ImAxisFlags_LockMin) && !NanOrInf(gp.Extents.Min.y))
plot.YAxis.Min = gp.Extents.Min.y;
if (!HasFlag(plot.YAxis.Flags, ImAxisFlags_LockMax) && !NanOrInf(gp.Extents.Max.y))
plot.YAxis.Max = gp.Extents.Max.y;
}
// CONTEXT MENU -----------------------------------------------------------
if (HasFlag(plot.Flags, ImPlotFlags_ContextMenu) && gp.Hov_Frame && gp.Hov_Grid && IO.MouseDoubleClicked[1] && !hov_legend)
ImGui::OpenPopup("##Context");
if (ImGui::BeginPopup("##Context")) {
PlotContextMenu(plot);
ImGui::EndPopup();
}
// CLEANUP ----------------------------------------------------------------
// Reset legend items
gp._LegendIndices.shrink(0);
// Null current plot/data
gp.CurrentPlot = NULL;
// Reset next plot data
gp.NextPlotData = ImNextPlotData();
// Pop PushID at the end of BeginPlot
PopID();
// End child window
ImGui::EndChild();
}
//=============================================================================
// MISC API
//=============================================================================
void SetNextPlotRange(float x_min, float x_max, float y_min, float y_max, ImGuiCond cond) {
SetNextPlotRangeX(x_min, x_max, cond);
SetNextPlotRangeY(y_min, y_max, cond);
}
void SetNextPlotRangeX(float x_min, float x_max, ImGuiCond cond) {
IM_ASSERT(cond == 0 || ImIsPowerOfTwo(cond)); // Make sure the user doesn't attempt to combine multiple condition flags.
gp.NextPlotData.HasXRange = true;
gp.NextPlotData.XRangeCond = cond;
gp.NextPlotData.XMin = x_min;
gp.NextPlotData.XMax = x_max;
}
void SetNextPlotRangeY(float y_min, float y_max, ImGuiCond cond) {
IM_ASSERT(cond == 0 || ImIsPowerOfTwo(cond)); // Make sure the user doesn't attempt to combine multiple condition flags.
gp.NextPlotData.HasYRange = true;
gp.NextPlotData.YRangeCond = cond;
gp.NextPlotData.YMin = y_min;
gp.NextPlotData.YMax = y_max;
}
ImVec2 GetPlotPos() {
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "GetPlotPos() Needs to be called between BeginPlot() and EndPlot()!");
return gp.BB_Grid.Min;
}
ImVec2 GetPlotSize() {
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "GetPlotSize() Needs to be called between BeginPlot() and EndPlot()!");
return gp.BB_Grid.GetSize();
}
ImVec2 PixelsToPlot(const ImVec2& pix) {
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "PixelsToPlot() Needs to be called between BeginPlot() and EndPlot()!");
return gp.FromPixels(pix);
}
ImVec2 PlotToPixels(const ImVec2& plt) {
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "PlotToPixels() Needs to be called between BeginPlot() and EndPlot()!");
return gp.ToPixels(plt);
}
void PushPlotClipRect() {
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "PushPlotClipRect() Needs to be called between BeginPlot() and EndPlot()!");
PushClipRect(gp.BB_Grid.Min, gp.BB_Grid.Max, true);
}
void PopPlotClipRect() {
PopClipRect();
}
bool IsPlotHovered() {
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "IsPlotHovered() Needs to be called between BeginPlot() and EndPlot()!");
return gp.Hov_Grid;
}
ImVec2 GetPlotMousePos() {
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "GetPlotMousePos() Needs to be called between BeginPlot() and EndPlot()!");
return gp.LastMousePos;
}
ImPlotRange GetPlotRange() {
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "GetPlotRange() Needs to be called between BeginPlot() and EndPlot()!");
ImPlot& plot = *gp.CurrentPlot;
ImPlotRange range;
range.XMin = plot.XAxis.Min;
range.XMax = plot.XAxis.Max;
range.YMin = plot.YAxis.Min;
range.YMax = plot.YAxis.Max;
return range;
}
bool IsPlotQueried() {
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "IsPlotQueried() Needs to be called between BeginPlot() and EndPlot()!");
return gp.CurrentPlot->Queried;
}
ImPlotRange GetPlotQuery() {
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "GetPlotQuery() Needs to be called between BeginPlot() and EndPlot()!");
ImPlot& plot = *gp.CurrentPlot;
if (HasFlag(plot.Flags, ImPlotFlags_PixelQuery)) {
gp.UpdateTransforms();
ImVec2 p1 = gp.FromPixels(plot.QueryRect.Min + gp.BB_Grid.Min);
ImVec2 p2 = gp.FromPixels(plot.QueryRect.Max + gp.BB_Grid.Min);
plot.QueryRange.XMin = ImMin(p1.x, p2.x);
plot.QueryRange.XMax = ImMax(p1.x, p2.x);
plot.QueryRange.YMin = ImMin(p1.y, p2.y);
plot.QueryRange.YMax = ImMax(p1.y, p2.y);
}
return plot.QueryRange;
}
//=============================================================================
// STYLING
//=============================================================================
struct ImPlotStyleVarInfo {
ImGuiDataType Type;
ImU32 Count;
ImU32 Offset;
void* GetVarPtr(ImPlotStyle* style) const { return (void*)((unsigned char*)style + Offset); }
};
static const ImPlotStyleVarInfo GPlotStyleVarInfo[] =
{
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, LineWeight) }, // ImPlotStyleVar_LineWeight
{ ImGuiDataType_S32, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, Marker) }, // ImPlotStyleVar_Marker
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, MarkerSize) }, // ImPlotStyleVar_MarkerSize
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, MarkerWeight) }, // ImPlotStyleVar_MarkerWeight
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, ErrorBarSize) }, // ImPlotStyleVar_ErrorBarSize
{ ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImPlotStyle, ErrorBarWeight) } // ImPlotStyleVar_ErrorBarWeight
};
static const ImPlotStyleVarInfo* GetPlotStyleVarInfo(ImPlotStyleVar idx)
{
IM_ASSERT(idx >= 0 && idx < ImPlotStyleVar_COUNT);
IM_ASSERT(IM_ARRAYSIZE(GPlotStyleVarInfo) == ImPlotStyleVar_COUNT);
return &GPlotStyleVarInfo[idx];
}
ImPlotStyle& GetPlotStyle() {
return gp.Style;
}
void SetPlotPalette(const ImVec4* colors, int num_colors) {
gp.ColorMap.shrink(0);
gp.ColorMap.reserve(num_colors);
for (int i = 0; i < num_colors; ++i) {
gp.ColorMap.push_back(colors[i]);
}
}
/// Returns the next unused default plot color
void RestorePlotPalette() {
static ImVec4 default_colors[10] = {
{(0.0F), (0.7490196228F), (1.0F), (1.0F)}, // Blues::DeepSkyBlue,
{(1.0F), (0.0F), (0.0F), (1.0F)}, // Reds::Red,
{(0.4980392158F), (1.0F), (0.0F), (1.0F)}, // Greens::Chartreuse,
{(1.0F), (1.0F), (0.0F), (1.0F)}, // Yellows::Yellow,
{(0.0F), (1.0F), (1.0F), (1.0F)}, // Cyans::Cyan,
{(1.0F), (0.6470588446F), (0.0F), (1.0F)}, // Oranges::Orange,
{(1.0F), (0.0F), (1.0F), (1.0F)}, // Purples::Magenta,
{(0.5411764979F), (0.1686274558F), (0.8862745166F), (1.0F)}, // Purples::BlueViolet,
{(0.5f), (0.5f), (0.5f), (1.0F)}, // Grays::Gray50,
{(0.8235294223F), (0.7058823705F), (0.5490196347F), (1.0F)} // Browns::Tan
};
SetPlotPalette(default_colors, 10);
}
void PushPlotColor(ImPlotCol idx, ImU32 col) {
ImGuiColorMod backup;
backup.Col = idx;
backup.BackupValue = gp.Style.Colors[idx];
gp.ColorModifiers.push_back(backup);
gp.Style.Colors[idx] = ColorConvertU32ToFloat4(col);
}
void PushPlotColor(ImPlotCol idx, const ImVec4& col) {
ImGuiColorMod backup;
backup.Col = idx;
backup.BackupValue = gp.Style.Colors[idx];
gp.ColorModifiers.push_back(backup);
gp.Style.Colors[idx] = col;
}
void PopPlotColor(int count) {
while (count > 0)
{
ImGuiColorMod& backup = gp.ColorModifiers.back();
gp.Style.Colors[backup.Col] = backup.BackupValue;
gp.ColorModifiers.pop_back();
count--;
}
}
void PushPlotStyleVar(ImPlotStyleVar idx, float val) {
const ImPlotStyleVarInfo* var_info = GetPlotStyleVarInfo(idx);
if (var_info->Type == ImGuiDataType_Float && var_info->Count == 1) {
float* pvar = (float*)var_info->GetVarPtr(&gp.Style);
gp.StyleModifiers.push_back(ImGuiStyleMod(idx, *pvar));
*pvar = val;
return;
}
IM_ASSERT(0 && "Called PushPlotStyleVar() float variant but variable is not a float!");
}
void PushPlotStyleVar(ImPlotStyleVar idx, int val) {
const ImPlotStyleVarInfo* var_info = GetPlotStyleVarInfo(idx);
if (var_info->Type == ImGuiDataType_S32 && var_info->Count == 1) {
int* pvar = (int*)var_info->GetVarPtr(&gp.Style);
gp.StyleModifiers.push_back(ImGuiStyleMod(idx, *pvar));
*pvar = val;
return;
}
else if (var_info->Type == ImGuiDataType_Float && var_info->Count == 1) {
float* pvar = (float*)var_info->GetVarPtr(&gp.Style);
gp.StyleModifiers.push_back(ImGuiStyleMod(idx, *pvar));
*pvar = (float)val;
return;
}
IM_ASSERT(0 && "Called PushPlotStyleVar() int variant but variable is not a int!");
}
void PopPlotStyleVar(int count) {
while (count > 0) {
ImGuiStyleMod& backup = gp.StyleModifiers.back();
const ImPlotStyleVarInfo* info = GetPlotStyleVarInfo(backup.VarIdx);
void* data = info->GetVarPtr(&gp.Style);
if (info->Type == ImGuiDataType_Float && info->Count == 1) {
((float*)data)[0] = backup.BackupFloat[0];
}
else if (info->Type == ImGuiDataType_Float && info->Count == 2) {
((float*)data)[0] = backup.BackupFloat[0];
((float*)data)[1] = backup.BackupFloat[1];
}
else if (info->Type == ImGuiDataType_S32 && info->Count == 1) {
((int*)data)[0] = backup.BackupInt[0];
}
gp.StyleModifiers.pop_back();
count--;
}
}
//=============================================================================
// MARKERS
//=============================================================================
#define SQRT_1_2 0.70710678118f
#define SQRT_3_2 0.86602540378f
inline void TransformMarker(ImVec2* points, int n, const ImVec2& c, float s) {
for (int i = 0; i < n; ++i) {
points[i].x = c.x + points[i].x * s;
points[i].y = c.y + points[i].y * s;
}
}
inline void MarkerGeneral(ImDrawList& DrawList, ImVec2* points, int n, const ImVec2& c, float s, bool outline, ImU32 col_outline, bool fill, ImU32 col_fill, float weight) {
TransformMarker(points, n, c, s);
if (fill)
DrawList.AddConvexPolyFilled(points, n, col_fill);
if (outline && !(fill && col_outline == col_fill)) {
for (int i = 0; i < n; ++i)
DrawList.AddLine(points[i], points[(i+1)%n], col_outline, weight);
}
}
inline void MakerCircle(ImDrawList& DrawList, const ImVec2& c, float s, bool outline, ImU32 col_outline, bool fill, ImU32 col_fill, float weight) {
ImVec2 marker[10] = {{1.0f, 0.0f},
{0.809017f, 0.58778524f},
{0.30901697f, 0.95105654f},
{-0.30901703f, 0.9510565f},
{-0.80901706f, 0.5877852f},
{-1.0f, 0.0f},
{-0.80901694f, -0.58778536f},
{-0.3090171f, -0.9510565f},
{0.30901712f, -0.9510565f},
{0.80901694f, -0.5877853f}};
MarkerGeneral(DrawList, marker, 10, c, s, outline, col_outline, fill, col_fill, weight);
}
inline void MarkerDiamond(ImDrawList& DrawList, const ImVec2& c, float s, bool outline, ImU32 col_outline, bool fill, ImU32 col_fill, float weight) {
ImVec2 marker[4] = {{1, 0}, {0, -1}, {-1, 0}, {0, 1}};
MarkerGeneral(DrawList, marker, 4, c, s, outline, col_outline, fill, col_fill, weight);
}
inline void MarkerSquare(ImDrawList& DrawList, const ImVec2& c, float s, bool outline, ImU32 col_outline, bool fill, ImU32 col_fill, float weight) {
ImVec2 marker[4] = {{SQRT_1_2,SQRT_1_2},{SQRT_1_2,-SQRT_1_2},{-SQRT_1_2,-SQRT_1_2},{-SQRT_1_2,SQRT_1_2}};
MarkerGeneral(DrawList, marker, 4, c, s, outline, col_outline, fill, col_fill, weight);
}
inline void MarkerUp(ImDrawList& DrawList, const ImVec2& c, float s, bool outline, ImU32 col_outline, bool fill, ImU32 col_fill, float weight) {
ImVec2 marker[3] = {{SQRT_3_2,0.5f},{0,-1},{-SQRT_3_2,0.5f}};
MarkerGeneral(DrawList, marker, 3, c, s, outline, col_outline, fill, col_fill, weight);
}
inline void MarkerDown(ImDrawList& DrawList, const ImVec2& c, float s, bool outline, ImU32 col_outline, bool fill, ImU32 col_fill, float weight) {
ImVec2 marker[3] = {{SQRT_3_2,-0.5f},{0,1},{-SQRT_3_2,-0.5f}};
MarkerGeneral(DrawList, marker, 3, c, s, outline, col_outline, fill, col_fill, weight);
}
inline void MarkerLeft(ImDrawList& DrawList, const ImVec2& c, float s, bool outline, ImU32 col_outline, bool fill, ImU32 col_fill, float weight) {
ImVec2 marker[3] = {{-1,0}, {0.5, SQRT_3_2}, {0.5, -SQRT_3_2}};
MarkerGeneral(DrawList, marker, 3, c, s, outline, col_outline, fill, col_fill, weight);
}
inline void MarkerRight(ImDrawList& DrawList, const ImVec2& c, float s, bool outline, ImU32 col_outline, bool fill, ImU32 col_fill, float weight) {
ImVec2 marker[3] = {{1,0}, {-0.5, SQRT_3_2}, {-0.5, -SQRT_3_2}};
MarkerGeneral(DrawList, marker, 3, c, s, outline, col_outline, fill, col_fill, weight);
}
inline void MarkerAsterisk(ImDrawList& DrawList, const ImVec2& c, float s, bool outline, ImU32 col_outline, bool fill, ImU32 col_fill, float weight) {
ImVec2 marker[6] = {{SQRT_3_2, 0.5f}, {0, -1}, {-SQRT_3_2, 0.5f}, {SQRT_3_2, -0.5f}, {0, 1}, {-SQRT_3_2, -0.5f}};
TransformMarker(marker, 6, c, s);
DrawList.AddLine(marker[0], marker[5], col_outline, weight);
DrawList.AddLine(marker[1], marker[4], col_outline, weight);
DrawList.AddLine(marker[2], marker[3], col_outline, weight);
}
inline void MarkerPlus(ImDrawList& DrawList, const ImVec2& c, float s, bool outline, ImU32 col_outline, bool fill, ImU32 col_fill, float weight) {
ImVec2 marker[4] = {{1, 0}, {0, -1}, {-1, 0}, {0, 1}};
TransformMarker(marker, 4, c, s);
DrawList.AddLine(marker[0], marker[2], col_outline, weight);
DrawList.AddLine(marker[1], marker[3], col_outline, weight);
}
inline void MarkerCross(ImDrawList& DrawList, const ImVec2& c, float s, bool outline, ImU32 col_outline, bool fill, ImU32 col_fill, float weight) {
ImVec2 marker[4] = {{SQRT_1_2,SQRT_1_2},{SQRT_1_2,-SQRT_1_2},{-SQRT_1_2,-SQRT_1_2},{-SQRT_1_2,SQRT_1_2}};
TransformMarker(marker, 4, c, s);
DrawList.AddLine(marker[0], marker[2], col_outline, weight);
DrawList.AddLine(marker[1], marker[3], col_outline, weight);
}
//=============================================================================
// PLOTTERS
//=============================================================================
struct ImPlotGetterData
{
const float* Xs;
const float* Ys;
const float* ErrNeg;
const float* ErrPos;
int Stride;
float XShift;
float YShift;
ImPlotGetterData(const float* xs, const float* ys, int stride,
float x_shift = 0, float y_shift = 0,
const float* err_neg = NULL, const float* err_pos = NULL) {
Xs = xs;
Ys = ys;
Stride = stride;
XShift = x_shift;
YShift = y_shift;
ErrNeg = err_neg;
ErrPos = err_pos;
}
};
inline float ImStrideIndex(const float* data, int idx, int stride) {
return *(const float*)(const void*)((const unsigned char*)data + (size_t)idx * stride);
}
static ImVec2 ImPlotGetter1D(void* data, int idx) {
ImPlotGetterData* data_1d = (ImPlotGetterData*)data;
return ImVec2((float)idx, ImStrideIndex(data_1d->Ys, idx, data_1d->Stride));
}
static ImVec2 ImPlotGetter2D(void* data, int idx) {
ImPlotGetterData* data_2d = (ImPlotGetterData*)data;
return ImVec2(ImStrideIndex(data_2d->Xs, idx, data_2d->Stride), ImStrideIndex(data_2d->Ys, idx, data_2d->Stride));
}
void Plot(const char* label_id, const float* values, int count, int offset, int stride) {
ImPlotGetterData data(nullptr, values, stride);
Plot(label_id, &ImPlotGetter1D, (void*)&data, count, offset);
}
void Plot(const char* label_id, const float* xs, const float* ys, int count, int offset, int stride) {
ImPlotGetterData data(xs,ys,stride);
Plot(label_id, &ImPlotGetter2D, (void*)&data, count, offset);
}
void Plot(const char* label_id, ImVec2 (*getter)(void* data, int idx), void* data, int count, int offset)
{
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "Plot() Needs to be called between BeginPlot() and EndPlot()!");
ImPlotItem* item = gp.RegisterItem(label_id);
if (!item->Show)
return;
ImDrawList & DrawList = *ImGui::GetWindowDrawList();
const bool rend_line = gp.Style.Colors[ImPlotCol_Line].w != 0 && gp.Style.LineWeight > 0;
const bool rend_mk_line = gp.Style.Colors[ImPlotCol_MarkerOutline].w != 0 && gp.Style.MarkerWeight > 0;
const bool rend_mk_fill = gp.Style.Colors[ImPlotCol_MarkerFill].w != 0;
ImU32 col_line = gp.Style.Colors[ImPlotCol_Line].w == -1 ? GetColorU32(item->Color) : GetColorU32(gp.Style.Colors[ImPlotCol_Line]);
ImU32 col_mk_line = gp.Style.Colors[ImPlotCol_MarkerOutline].w == -1 ? col_line : GetColorU32(gp.Style.Colors[ImPlotCol_MarkerOutline]);
ImU32 col_mk_fill = gp.Style.Colors[ImPlotCol_MarkerFill].w == -1 ? col_line : GetColorU32(gp.Style.Colors[ImPlotCol_MarkerFill]);
if (gp.Style.Colors[ImPlotCol_Line].w != -1)
item->Color = gp.Style.Colors[ImPlotCol_Line];
// find data extents
if (gp.FitThisFrame) {
for (int i = 0; i < count; ++i) {
ImVec2 p = getter(data, i);
gp.FitPoint(p);
}
}
ImGui::PushClipRect(gp.BB_Grid.Min, gp.BB_Grid.Max, true);
bool cull = HasFlag(gp.CurrentPlot->Flags, ImPlotFlags_CullData);
const float line_weight = item->Highlight ? gp.Style.LineWeight * 2 : gp.Style.LineWeight;
// render line segments
if (count > 1 && rend_line) {
const int segments = count - 1;
int i1 = offset;
ImVec2 p1, p2;
if (HasFlag(gp.CurrentPlot->Flags, ImPlotFlags_AntiAliased)) {
for (int s = 0; s < segments; ++s) {
const int i2 = (i1 + 1) % count;
p1 = gp.ToPixels(getter(data, i1));
p2 = gp.ToPixels(getter(data, i2));
i1 = i2;
if (!cull || gp.BB_Grid.Contains(p1) || gp.BB_Grid.Contains(p2))
DrawList.AddLine(p1, p2, col_line, line_weight);
}
}
else {
const int idx_count = segments * 6;
const int vtx_count = segments * 4;
const ImVec2 uv = DrawList._Data->TexUvWhitePixel;
DrawList.PrimReserve(idx_count, vtx_count);
int segments_culled = 0;
for (int s = 0; s < segments; ++s) {
const int i2 = (i1 + 1) % count;
p1 = gp.ToPixels(getter(data, i1));
p2 = gp.ToPixels(getter(data, i2));
i1 = i2;
if (!cull || gp.BB_Grid.Contains(p1) || gp.BB_Grid.Contains(p2)) {
float dx = p2.x - p1.x;
float dy = p2.y - p1.y;
IM_NORMALIZE2F_OVER_ZERO(dx, dy);
dx *= (line_weight * 0.5f);
dy *= (line_weight * 0.5f);
DrawList._VtxWritePtr[0].pos.x = p1.x + dy;
DrawList._VtxWritePtr[0].pos.y = p1.y - dx;
DrawList._VtxWritePtr[0].uv = uv;
DrawList._VtxWritePtr[0].col = col_line;
DrawList._VtxWritePtr[1].pos.x = p2.x + dy;
DrawList._VtxWritePtr[1].pos.y = p2.y - dx;
DrawList._VtxWritePtr[1].uv = uv;
DrawList._VtxWritePtr[1].col = col_line;
DrawList._VtxWritePtr[2].pos.x = p2.x - dy;
DrawList._VtxWritePtr[2].pos.y = p2.y + dx;
DrawList._VtxWritePtr[2].uv = uv;
DrawList._VtxWritePtr[2].col = col_line;
DrawList._VtxWritePtr[3].pos.x = p1.x - dy;
DrawList._VtxWritePtr[3].pos.y = p1.y + dx;
DrawList._VtxWritePtr[3].uv = uv;
DrawList._VtxWritePtr[3].col = col_line;
DrawList._VtxWritePtr += 4;
DrawList._IdxWritePtr[0] = (ImDrawIdx)(DrawList._VtxCurrentIdx);
DrawList._IdxWritePtr[1] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 1);
DrawList._IdxWritePtr[2] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 2);
DrawList._IdxWritePtr[3] = (ImDrawIdx)(DrawList._VtxCurrentIdx);
DrawList._IdxWritePtr[4] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 2);
DrawList._IdxWritePtr[5] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 3);
DrawList._IdxWritePtr += 6;
DrawList._VtxCurrentIdx += 4;
}
else {
segments_culled++;
}
}
if (segments_culled > 0)
DrawList.PrimUnreserve(segments_culled * 6, segments_culled * 4);
}
}
// render markers
if (gp.Style.Marker != ImMarker_None) {
int idx = offset;
for (int i = 0; i < count; ++i) {
ImVec2 c;
c = gp.ToPixels(getter(data, idx));
idx = (idx + 1) % count;
if (!cull || gp.BB_Grid.Contains(c)) {
// TODO: Optimize the loop and if statements, this is atrocious
if (HasFlag(gp.Style.Marker, ImMarker_Circle))
MakerCircle(DrawList, c, gp.Style.MarkerSize, rend_mk_line, col_mk_line, rend_mk_fill, col_mk_fill, gp.Style.MarkerWeight);
if (HasFlag(gp.Style.Marker, ImMarker_Square))
MarkerSquare(DrawList, c, gp.Style.MarkerSize, rend_mk_line, col_mk_line, rend_mk_fill, col_mk_fill, gp.Style.MarkerWeight);
if (HasFlag(gp.Style.Marker, ImMarker_Diamond))
MarkerDiamond(DrawList, c, gp.Style.MarkerSize, rend_mk_line, col_mk_line, rend_mk_fill, col_mk_fill, gp.Style.MarkerWeight);
if (HasFlag(gp.Style.Marker, ImMarker_Up))
MarkerUp(DrawList, c, gp.Style.MarkerSize, rend_mk_line, col_mk_line, rend_mk_fill, col_mk_fill, gp.Style.MarkerWeight);
if (HasFlag(gp.Style.Marker, ImMarker_Down))
MarkerDown(DrawList, c, gp.Style.MarkerSize, rend_mk_line, col_mk_line, rend_mk_fill, col_mk_fill, gp.Style.MarkerWeight);
if (HasFlag(gp.Style.Marker, ImMarker_Left))
MarkerLeft(DrawList, c, gp.Style.MarkerSize, rend_mk_line, col_mk_line, rend_mk_fill, col_mk_fill, gp.Style.MarkerWeight);
if (HasFlag(gp.Style.Marker, ImMarker_Right))
MarkerRight(DrawList, c, gp.Style.MarkerSize, rend_mk_line, col_mk_line, rend_mk_fill, col_mk_fill, gp.Style.MarkerWeight);
if (HasFlag(gp.Style.Marker, ImMarker_Cross))
MarkerCross(DrawList, c, gp.Style.MarkerSize, rend_mk_line, col_mk_line, rend_mk_fill, col_mk_fill, gp.Style.MarkerWeight);
if (HasFlag(gp.Style.Marker, ImMarker_Plus))
MarkerPlus(DrawList, c, gp.Style.MarkerSize, rend_mk_line, col_mk_line, rend_mk_fill, col_mk_fill, gp.Style.MarkerWeight);
if (HasFlag(gp.Style.Marker, ImMarker_Asterisk))
MarkerAsterisk(DrawList, c, gp.Style.MarkerSize, rend_mk_line, col_mk_line, rend_mk_fill, col_mk_fill, gp.Style.MarkerWeight);
}
}
}
ImGui::PopClipRect();
}
static ImVec2 ImPlotGetterBarV(void* data, int idx) {
ImPlotGetterData* data_1d = (ImPlotGetterData*)data;
return ImVec2((float)idx + data_1d->XShift, ImStrideIndex(data_1d->Ys, idx, data_1d->Stride));
}
void PlotBar(const char* label_id, const float* values, int count, float width, float shift, int offset, int stride) {
ImPlotGetterData data(NULL, values, stride, shift);
PlotBar(label_id, &ImPlotGetterBarV, (void*)&data, count, width, offset);
}
void PlotBar(const char* label_id, const float* xs, const float* ys, int count, float width, int offset, int stride) {
ImPlotGetterData data(xs,ys,stride);
PlotBar(label_id, &ImPlotGetter2D, (void*)&data, count, width, offset);
}
void PlotBar(const char* label_id, ImVec2 (*getter)(void* data, int idx), void* data, int count, float width, int offset) {
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "PlotBar() Needs to be called between BeginPlot() and EndPlot()!");
ImPlotItem* item = gp.RegisterItem(label_id);
if (!item->Show)
return;
ImDrawList & DrawList = *GetWindowDrawList();
bool rend_line = gp.Style.Colors[ImPlotCol_Line].w != 0 && gp.Style.LineWeight > 0;
bool rend_fill = gp.Style.Colors[ImPlotCol_Fill].w != 0;
ImU32 col_line = gp.Style.Colors[ImPlotCol_Line].w == -1 ? GetColorU32(item->Color) : GetColorU32(gp.Style.Colors[ImPlotCol_Line]);
ImU32 col_fill = gp.Style.Colors[ImPlotCol_Fill].w == -1 ? col_line : GetColorU32(gp.Style.Colors[ImPlotCol_Fill]);
if (rend_fill && col_line == col_fill)
rend_line = false;
if (gp.Style.Colors[ImPlotCol_Line].w != -1)
item->Color = gp.Style.Colors[ImPlotCol_Line];
PushClipRect(gp.BB_Grid.Min, gp.BB_Grid.Max, true);
float half_width = width * 0.5f;
// find data extents
if (gp.FitThisFrame) {
for (int i = 0; i < count; ++i) {
ImVec2 p = getter(data, i);
gp.FitPoint(ImVec2(p.x - half_width, p.y));
gp.FitPoint(ImVec2(p.x + half_width, 0));
}
}
int idx = offset;
for (int i = 0; i < count; ++i) {
ImVec2 p;
p = getter(data, idx);
idx = (idx + 1) % count;
if (p.y == 0)
continue;
ImVec2 a = gp.ToPixels(p.x - half_width, p.y);
ImVec2 b = gp.ToPixels(p.x + half_width, 0);
if (rend_fill)
DrawList.AddRectFilled(a, b, col_fill);
if (rend_line)
DrawList.AddRect(a, b, col_line);
}
PopClipRect();
}
static ImVec2 ImPlotGetterBarH(void* data, int idx) {
ImPlotGetterData* data_1d = (ImPlotGetterData*)data;
return ImVec2(ImStrideIndex(data_1d->Xs, idx, data_1d->Stride), (float)idx + data_1d->YShift);
}
void PlotBarH(const char* label_id, const float* values, int count, float height, float shift, int offset, int stride) {
ImPlotGetterData data(values, NULL, stride, 0, shift);
PlotBarH(label_id, &ImPlotGetterBarH, (void*)&data, count, height, offset);
}
void PlotBarH(const char* label_id, const float* xs, const float* ys, int count, float height, int offset, int stride) {
ImPlotGetterData data(xs,ys,stride);
PlotBarH(label_id, &ImPlotGetter2D, (void*)&data, count, height, offset);
}
void PlotBarH(const char* label_id, ImVec2 (*getter)(void* data, int idx), void* data, int count, float height, int offset) {
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "PlotBarH() Needs to be called between BeginPlot() and EndPlot()!");
ImPlotItem* item = gp.RegisterItem(label_id);
if (!item->Show)
return;
ImDrawList & DrawList = *GetWindowDrawList();
bool rend_line = gp.Style.Colors[ImPlotCol_Line].w != 0 && gp.Style.LineWeight > 0;
bool rend_fill = gp.Style.Colors[ImPlotCol_Fill].w != 0;
ImU32 col_line = gp.Style.Colors[ImPlotCol_Line].w == -1 ? GetColorU32(item->Color) : GetColorU32(gp.Style.Colors[ImPlotCol_Line]);
ImU32 col_fill = gp.Style.Colors[ImPlotCol_Fill].w == -1 ? col_line : GetColorU32(gp.Style.Colors[ImPlotCol_Fill]);
if (rend_fill && col_line == col_fill)
rend_line = false;
if (gp.Style.Colors[ImPlotCol_Line].w != -1)
item->Color = gp.Style.Colors[ImPlotCol_Line];
PushClipRect(gp.BB_Grid.Min, gp.BB_Grid.Max, true);
float half_height = height * 0.5f;
// find data extents
if (gp.FitThisFrame) {
for (int i = 0; i < count; ++i) {
ImVec2 p = getter(data, i);
gp.FitPoint(ImVec2(0, p.y - half_height));
gp.FitPoint(ImVec2(p.x, p.y + half_height));
}
}
int idx = offset;
for (int i = 0; i < count; ++i) {
ImVec2 p;
p = getter(data, idx);
idx = (idx + 1) % count;
if (p.x == 0)
continue;
ImVec2 a = gp.ToPixels(0, p.y - half_height);
ImVec2 b = gp.ToPixels(p.x, p.y + half_height);
if (rend_fill)
DrawList.AddRectFilled(a, b, col_fill);
if (rend_line)
DrawList.AddRect(a, b, col_line);
}
PopClipRect();
}
static ImVec4 ImPlotGetterError(void* data, int idx) {
ImPlotGetterData* data_4d = (ImPlotGetterData*)data;
return ImVec4(ImStrideIndex(data_4d->Xs, idx, data_4d->Stride),
ImStrideIndex(data_4d->Ys, idx, data_4d->Stride),
ImStrideIndex(data_4d->ErrNeg, idx, data_4d->Stride),
ImStrideIndex(data_4d->ErrPos, idx, data_4d->Stride));
}
void PlotErrorBars(const char* label_id, const float* xs, const float* ys, const float* err, int count, int offset, int stride) {
ImPlotGetterData data(xs,ys,stride,0,0,err,err);
PlotErrorBars(label_id, &ImPlotGetterError, (void*)&data, count, offset);
}
void PlotErrorBars(const char* label_id, const float* xs, const float* ys, const float* neg, const float* pos, int count, int offset, int stride) {
ImPlotGetterData data(xs,ys,stride,0,0,neg,pos);
PlotErrorBars(label_id, &ImPlotGetterError, (void*)&data, count, offset);
}
void PlotErrorBars(const char* label_id, ImVec4 (*getter)(void* data, int idx), void* data, int count, int offset) {
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "PlotErrorBars() Needs to be called between BeginPlot() and EndPlot()!");
ImGuiID id = GetID(label_id);
ImPlotItem* item = gp.CurrentPlot->Items.GetByKey(id);
if (item != NULL && item->Show == false)
return;
ImDrawList & DrawList = *GetWindowDrawList();
PushClipRect(gp.BB_Grid.Min, gp.BB_Grid.Max, true);
const ImU32 col = gp.Style.Colors[ImPlotCol_ErrorBar].w == -1 ? GetColorU32(ImGuiCol_Text) : GetColorU32(gp.Style.Colors[ImPlotCol_ErrorBar]);
const bool rend_whisker = gp.Style.ErrorBarSize > 0;
const float half_whisker = gp.Style.ErrorBarSize * 0.5f;
// find data extents
if (gp.FitThisFrame) {
for (int i = 0; i < count; ++i) {
ImVec4 e = getter(data, i);
gp.FitPoint(ImVec2(e.x , e.y - e.z));
gp.FitPoint(ImVec2(e.x , e.y + e.w ));
}
}
int idx = offset;
for (int i = 0; i < count; ++i) {
ImVec4 e;
e = getter(data, idx);
idx = (idx + 1) % count;
ImVec2 p1 = gp.ToPixels(e.x, e.y - e.z);
ImVec2 p2 = gp.ToPixels(e.x, e.y + e.w);
DrawList.AddLine(p1,p2,col, gp.Style.ErrorBarWeight);
if (rend_whisker) {
DrawList.AddLine(p1 - ImVec2(half_whisker, 0), p1 + ImVec2(half_whisker, 0), col, gp.Style.ErrorBarWeight);
DrawList.AddLine(p2 - ImVec2(half_whisker, 0), p2 + ImVec2(half_whisker, 0), col, gp.Style.ErrorBarWeight);
}
}
PopClipRect();
}
void PlotLabel(const char* text, float x, float y, bool vertical, const ImVec2& pixel_offset) {
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "PlotLabel() Needs to be called between BeginPlot() and EndPlot()!");
ImDrawList & DrawList = *ImGui::GetWindowDrawList();
PushClipRect(gp.BB_Grid.Min, gp.BB_Grid.Max, true);
ImVec2 pos = gp.ToPixels({x,y}) + pixel_offset;
if (vertical)
AddTextVertical(&DrawList, text, pos, gp.Col_Txt);
else
DrawList.AddText(pos, gp.Col_Txt, text);
PopClipRect();
}
} // namespace ImGui
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