gwm17/implot
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Merge branch 'ozlb-master'

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This commit is contained in:
Evan Pezent 2020-07-26 21:28:46 -05:00
parent b1e2e501d0 9815d64691
commit 5ee62dd86a
3 changed files with 101 additions and 49 deletions
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109
implot.cpp
View File

@ -193,7 +193,7 @@ inline T Remap(T x, T x0, T x1, T y0, T y1) {
return y0 + (x - x0) * (y1 - y0) / (x1 - x0);
}
// Returns always positive modulo
// Returns always positive modulo (r != 0)
inline int PosMod(int l, int r) {
return (l % r + r) % r;
}
@ -308,11 +308,13 @@ struct ImPlotTick {
struct ImPlotAxis {
ImPlotAxis() {
Dragging = false;
Hovered = false;
Range.Min = 0;
Range.Max = 1;
Flags = PreviousFlags = ImPlotAxisFlags_Default;
}
bool Dragging;
bool Hovered;
ImPlotRange Range;
ImPlotAxisFlags Flags, PreviousFlags;
};
@ -1019,7 +1021,7 @@ bool BeginPlot(const char* title, const char* x_label, const char* y_label, cons
// axis region bbs
const ImRect xAxisRegion_bb(gp.BB_Plot.Min + ImVec2(10, 0), ImVec2(gp.BB_Plot.Max.x, gp.BB_Frame.Max.y) - ImVec2(10, 0));
const bool hov_x_axis_region = xAxisRegion_bb.Contains(IO.MousePos);
plot.XAxis.Hovered = xAxisRegion_bb.Contains(IO.MousePos);
// The left labels are referenced to the left of the bounding box.
gp.AxisLabelReference[0] = gp.BB_Plot.Min.x;
@ -1036,20 +1038,16 @@ bool BeginPlot(const char* title, const char* x_label, const char* y_label, cons
ImRect yAxisRegion_bb[MAX_Y_AXES];
yAxisRegion_bb[0] = ImRect(ImVec2(gp.BB_Frame.Min.x, gp.BB_Plot.Min.y), ImVec2(gp.BB_Plot.Min.x + 6, gp.BB_Plot.Max.y - 10));
// The auxiliary y axes are off to the right of the BB grid.
yAxisRegion_bb[1] = ImRect(ImVec2(gp.BB_Plot.Max.x - 6, gp.BB_Plot.Min.y),
gp.BB_Plot.Max + ImVec2(y_axis_pad(1), 0));
yAxisRegion_bb[2] = ImRect(ImVec2(gp.AxisLabelReference[2] - 6, gp.BB_Plot.Min.y),
yAxisRegion_bb[1].Max + ImVec2(y_axis_pad(2), 0));
yAxisRegion_bb[1] = ImRect(ImVec2(gp.BB_Plot.Max.x - 6, gp.BB_Plot.Min.y), gp.BB_Plot.Max + ImVec2(y_axis_pad(1), -10));
yAxisRegion_bb[2] = ImRect(ImVec2(gp.AxisLabelReference[2] - 6, gp.BB_Plot.Min.y), yAxisRegion_bb[1].Max + ImVec2(y_axis_pad(2), -10));
ImRect centralRegion(ImVec2(gp.BB_Plot.Min.x + 6, gp.BB_Plot.Min.y),
ImVec2(gp.BB_Plot.Max.x - 6, gp.BB_Plot.Max.y));
ImRect centralRegion(ImVec2(gp.BB_Plot.Min.x + 6, gp.BB_Plot.Min.y), ImVec2(gp.BB_Plot.Max.x - 6, gp.BB_Plot.Max.y));
const bool hov_y_axis_region[MAX_Y_AXES] = {
gp.Y[0].Present && (yAxisRegion_bb[0].Contains(IO.MousePos) || centralRegion.Contains(IO.MousePos)),
gp.Y[1].Present && (yAxisRegion_bb[1].Contains(IO.MousePos) || centralRegion.Contains(IO.MousePos)),
gp.Y[2].Present && (yAxisRegion_bb[2].Contains(IO.MousePos) || centralRegion.Contains(IO.MousePos)),
};
const bool any_hov_y_axis_region = hov_y_axis_region[0] || hov_y_axis_region[1] || hov_y_axis_region[2];
plot.YAxis[0].Hovered = gp.Y[0].Present && (yAxisRegion_bb[0].Contains(IO.MousePos) || centralRegion.Contains(IO.MousePos));
plot.YAxis[1].Hovered = gp.Y[1].Present && (yAxisRegion_bb[1].Contains(IO.MousePos) || centralRegion.Contains(IO.MousePos));
plot.YAxis[2].Hovered = gp.Y[2].Present && (yAxisRegion_bb[2].Contains(IO.MousePos) || centralRegion.Contains(IO.MousePos));
const bool any_hov_y_axis_region = plot.YAxis[0].Hovered || plot.YAxis[1].Hovered || plot.YAxis[2].Hovered;
// legend hovered from last frame
const bool hov_legend = HasFlag(plot.Flags, ImPlotFlags_Legend) ? gp.Hov_Frame && plot.BB_Legend.Contains(IO.MousePos) : false;
@ -1147,11 +1145,11 @@ bool BeginPlot(const char* title, const char* x_label, const char* y_label, cons
}
// start drag
if (!drag_in_progress && gp.Hov_Frame && IO.MouseClicked[gp.InputMap.PanButton] && HasFlag(IO.KeyMods, gp.InputMap.PanMod) && !plot.Selecting && !hov_legend && !hov_query && !plot.DraggingQuery) {
if (hov_x_axis_region) {
if (plot.XAxis.Hovered) {
plot.XAxis.Dragging = true;
}
for (int i = 0; i < MAX_Y_AXES; i++) {
if (hov_y_axis_region[i]) {
if (plot.YAxis[i].Hovered) {
plot.YAxis[i].Dragging = true;
}
}
@ -1159,14 +1157,14 @@ bool BeginPlot(const char* title, const char* x_label, const char* y_label, cons
// SCROLL INPUT -----------------------------------------------------------
if (gp.Hov_Frame && (hov_x_axis_region || any_hov_y_axis_region) && IO.MouseWheel != 0) {
if (gp.Hov_Frame && (plot.XAxis.Hovered || any_hov_y_axis_region) && IO.MouseWheel != 0) {
UpdateTransformCache();
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_Plot.Min.x, gp.BB_Plot.Max.x, 0.0f, 1.0f);
float ty = Remap(IO.MousePos.y, gp.BB_Plot.Min.y, gp.BB_Plot.Max.y, 0.0f, 1.0f);
if (hov_x_axis_region && !gp.X.Lock) {
if (plot.XAxis.Hovered && !gp.X.Lock) {
ImPlotAxisScale axis_scale(0, tx, ty, zoom_rate);
const ImPlotPoint& plot_tl = axis_scale.Min;
const ImPlotPoint& plot_br = axis_scale.Max;
@ -1177,7 +1175,7 @@ bool BeginPlot(const char* title, const char* x_label, const char* y_label, cons
plot.XAxis.Range.Max = gp.X.Invert ? plot_tl.x : plot_br.x;
}
for (int i = 0; i < MAX_Y_AXES; i++) {
if (hov_y_axis_region[i] && !gp.Y[i].Lock) {
if (plot.YAxis[i].Hovered && !gp.Y[i].Lock) {
ImPlotAxisScale axis_scale(i, tx, ty, zoom_rate);
const ImPlotPoint& plot_tl = axis_scale.Min;
const ImPlotPoint& plot_br = axis_scale.Max;
@ -1272,11 +1270,11 @@ bool BeginPlot(const char* title, const char* x_label, const char* y_label, cons
// DOUBLE CLICK -----------------------------------------------------------
if ( IO.MouseDoubleClicked[gp.InputMap.FitButton] && gp.Hov_Frame && (hov_x_axis_region || any_hov_y_axis_region) && !hov_legend && !hov_query) {
if ( IO.MouseDoubleClicked[gp.InputMap.FitButton] && gp.Hov_Frame && (plot.XAxis.Hovered || any_hov_y_axis_region) && !hov_legend && !hov_query) {
gp.FitThisFrame = true;
gp.FitX = hov_x_axis_region;
gp.FitX = plot.XAxis.Hovered;
for (int i = 0; i < MAX_Y_AXES; i++) {
gp.FitY[i] = hov_y_axis_region[i];
gp.FitY[i] = plot.YAxis[i].Hovered;
}
}
else {
@ -1384,8 +1382,6 @@ bool BeginPlot(const char* title, const char* x_label, const char* y_label, cons
AddTextVertical(&DrawList, y_label, yLabel_pos, gp.Col_Y[0].Txt);
}
// PREP -------------------------------------------------------------------
// push plot ID into stack
ImGui::PushID(ID);
return true;
@ -1594,20 +1590,20 @@ void EndPlot() {
if (!gp.Y[i].Present) { continue; }
axis_count++;
if (!HasFlag(plot.YAxis[i].Flags, ImPlotAxisFlags_TickMarks)) { continue; }
float x_start = gp.AxisLabelReference[i];
float direction = (i == 0) ? 1.0f : -1.0f;
bool no_major = axis_count >= 3;
if (HasFlag(plot.YAxis[i].Flags, ImPlotAxisFlags_TickMarks)) {
float direction = (i == 0) ? 1.0f : -1.0f;
bool no_major = axis_count >= 3;
for (int t = 0; t < gp.YTicks[i].Size; t++) {
ImPlotTick *yt = &gp.YTicks[i][t];
ImVec2 start = ImVec2(x_start, yt->PixelPos);
for (int t = 0; t < gp.YTicks[i].Size; t++) {
ImPlotTick *yt = &gp.YTicks[i][t];
ImVec2 start = ImVec2(x_start, yt->PixelPos);
DrawList.AddLine(
start,
start + ImVec2(direction * ((!no_major && yt->Major) ? 10.0f : 5.0f), 0),
gp.Col_Border, 1);
DrawList.AddLine(
start,
start + ImVec2(direction * ((!no_major && yt->Major) ? 10.0f : 5.0f), 0),
gp.Col_Border, 1);
}
}
if (axis_count >= 3) {
@ -1620,6 +1616,23 @@ void EndPlot() {
}
ImGui::PopClipRect();
// render y-axis drag/drop hover
if (ImGui::IsDragDropPayloadBeingAccepted()) {
ImRect bb_plot_pad = gp.BB_Plot;
bb_plot_pad.Min.x += 5; bb_plot_pad.Max.x -= 5;
if (!bb_plot_pad.Contains(IO.MousePos)) {
for (int i = 0; i < MAX_Y_AXES; ++i) {
if (plot.YAxis[i].Hovered) {
float x_loc = gp.AxisLabelReference[i];
ImVec2 p1(x_loc - 5, gp.BB_Plot.Min.y - 5);
ImVec2 p2(x_loc + 5, gp.BB_Plot.Max.y + 5);
DrawList.AddRect(p1, p2, ImGui::GetColorU32(ImGuiCol_DragDropTarget), 0.0f, ImDrawCornerFlags_All, 2.0f);
}
}
}
}
PushPlotClipRect();
// render selection/query
if (plot.Selecting) {
@ -1892,6 +1905,22 @@ bool IsPlotHovered() {
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "IsPlotHovered() needs to be called between BeginPlot() and EndPlot()!");
return gp.Hov_Plot;
}
bool IsPlotXAxisHovered() {
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "IsPlotXAxisHovered() needs to be called between BeginPlot() and EndPlot()!");
ImRect bb_plot_pad = gp.BB_Plot; bb_plot_pad.Max.y -= 5;
return gp.CurrentPlot->XAxis.Hovered && !bb_plot_pad.Contains(ImGui::GetMousePos());
}
bool IsPlotYAxisHovered(int y_axis_in) {
IM_ASSERT_USER_ERROR(y_axis_in >= -1 && y_axis_in < MAX_Y_AXES, "y_axis needs to between -1 and MAX_Y_AXES");
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "IsPlotYAxisHovered() needs to be called between BeginPlot() and EndPlot()!");
const int y_axis = y_axis_in >= 0 ? y_axis_in : gp.CurrentPlot->CurrentYAxis;
ImRect bb_plot_pad = gp.BB_Plot;
bb_plot_pad.Min.x += 5; bb_plot_pad.Max.x -= 5;
return gp.CurrentPlot->YAxis[y_axis].Hovered && !!bb_plot_pad.Contains(ImGui::GetMousePos());
}
ImPlotPoint GetPlotMousePos(int y_axis_in) {
IM_ASSERT_USER_ERROR(y_axis_in >= -1 && y_axis_in < MAX_Y_AXES, "y_axis needs to between -1 and MAX_Y_AXES");
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "GetPlotMousePos() needs to be called between BeginPlot() and EndPlot()!");
@ -1935,6 +1964,16 @@ ImPlotLimits GetPlotQuery(int y_axis_in) {
return result;
}
bool IsPlotItemHighlighted(const char* label_id) {
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "IsPlotItemHighlight() needs to be called between BeginPlot() and EndPlot()!");
ImGuiID id = ImGui::GetID(label_id);
ImPlotItem* item = gp.CurrentPlot->Items.GetByKey(id);
if (item && item->Highlight)
return true;
else
return false;
}
//-----------------------------------------------------------------------------
// STYLING
//-----------------------------------------------------------------------------

16
implot.h
View File

@ -288,16 +288,22 @@ void PlotText(const char* text, double x, double y, bool vertical = false, const
// Plot Queries
//-----------------------------------------------------------------------------
// Returns true if the plot area in the current or most recent plot is hovered.
// Returns true if the plot area in the current plot is hovered.
bool IsPlotHovered();
// Returns the mouse position in x,y coordinates of the current or most recent plot. A negative y_axis uses the current value of SetPlotYAxis (0 initially).
// Returns true if the XAxis plot area in the current plot is hovered.
bool IsPlotXAxisHovered();
// Returns true if the YAxis[n] plot area in the current plot is hovered.
bool IsPlotYAxisHovered(int y_axis = 0);
// Returns the mouse position in x,y coordinates of the current plot. A negative y_axis uses the current value of SetPlotYAxis (0 initially).
ImPlotPoint GetPlotMousePos(int y_axis = -1);
// Returns the current or most recent plot axis range. A negative y_axis uses the current value of SetPlotYAxis (0 initially).
// Returns the current plot axis range. A negative y_axis uses the current value of SetPlotYAxis (0 initially).
ImPlotLimits GetPlotLimits(int y_axis = -1);
// Returns true if the current or most recent plot is being queried.
// Returns true if the current plot is being queried.
bool IsPlotQueried();
// Returns the current or most recent plot query bounds.
// Returns the current plot query bounds.
ImPlotLimits GetPlotQuery(int y_axis = -1);
// Returns true if plot item is highlighted (i.e. legend entry is hovered)
bool IsPlotItemHighlighted(const char* label_id);
//-----------------------------------------------------------------------------
// Plot Input Mapping

25
implot_demo.cpp
View File

@ -711,13 +711,15 @@ void ShowDemoWindow(bool* p_open) {
static bool init = true;
static ScrollingData data[K_CHANNELS];
static bool show[K_CHANNELS];
static int yAxis[K_CHANNELS];
if (init) {
for (int i = 0; i < K_CHANNELS; ++i) {
show[i] = false;
yAxis[i] = 0;
}
init = false;
}
ImGui::BulletText("Drag data items from the left column onto the plot.");
ImGui::BulletText("Drag data items from the left column onto the plot or onto y axis");
ImGui::BeginGroup();
if (ImGui::Button("Clear", ImVec2(100, 0))) {
for (int i = 0; i < K_CHANNELS; ++i) {
@ -751,23 +753,28 @@ void ShowDemoWindow(bool* p_open) {
}
}
ImPlot::SetNextPlotLimitsX((double)t - 10, t, paused ? ImGuiCond_Once : ImGuiCond_Always);
if (ImPlot::BeginPlot("##DND")) {
if (ImPlot::BeginPlot("##DND", NULL, NULL, ImVec2(-1,0), ImPlotFlags_Legend | ImPlotFlags_Highlight | ImPlotFlags_BoxSelect | ImPlotFlags_ContextMenu | ImPlotFlags_NoChild | ImPlotFlags_YAxis2 | ImPlotFlags_YAxis3)) {
for (int i = 0; i < K_CHANNELS; ++i) {
if (show[i] && data[i].Data.size() > 0) {
char label[K_CHANNELS];
sprintf(label, "data_%d", i);
ImPlot::SetPlotYAxis(yAxis[i]);
ImPlot::PlotLine(label, &data[i].Data[0].x, &data[i].Data[0].y, data[i].Data.size(), data[i].Offset, 2 * sizeof(t_float));
}
}
if (ImGui::BeginDragDropTarget()) {
if (const ImGuiPayload* payload = ImGui::AcceptDragDropPayload("DND_PLOT")) {
int i = *(int*)payload->Data;
show[i] = true;
for (int y = 0; y < 3; y++) {
if (ImPlot::IsPlotYAxisHovered(y))
yAxis[i] = y;
}
}
ImGui::EndDragDropTarget();
}
ImPlot::EndPlot();
}
if (ImGui::BeginDragDropTarget()) {
if (const ImGuiPayload* payload = ImGui::AcceptDragDropPayload("DND_PLOT")) {
int i = *(int*)payload->Data;
show[i] = true;
}
ImGui::EndDragDropTarget();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Digital and Analog Signals")) {