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finish guides
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c6aff1362c
commit
4ed7d01637
65
implot.cpp
65
implot.cpp
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@ -2486,26 +2486,48 @@ ImPlotLimits GetPlotQuery(int y_axis_in) {
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bool HorizontalGuide(const char* id, double* value, const ImVec4& col, float thickness) {
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ImPlotContext& gp = *GImPlot;
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IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "HorizontalGuide() needs to be called between BeginPlot() and EndPlot()!");
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const float grab_size = 2*thickness;
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const float grab_size = ImMax(6.0f, thickness);
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float xl = gp.BB_Plot.Min.x;
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float xr = gp.BB_Plot.Max.x;
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float y = PlotToPixels(0, *value).y;
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ImU32 col32 = IsColorAuto(col) ? GetStyleColorU32(ImPlotCol_Query) : ImGui::ColorConvertFloat4ToU32(col);
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PushPlotClipRect();
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GetPlotDrawList()->AddLine(ImVec2(xl,y), ImVec2(xr,y), col32, thickness);
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PopPlotClipRect();
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float y = IM_ROUND(PlotToPixels(0, *value).y);
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const bool outside = (y < gp.BB_Plot.Min.y - grab_size / 2 || y > gp.BB_Plot.Max.y + grab_size / 2);
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if (outside)
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return false;
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float len = gp.Style.MajorTickLen.y;
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ImVec4 color = IsColorAuto(col) ? ImGui::GetStyleColorVec4(ImGuiCol_Text) : col;
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ImU32 col32 = ImGui::ColorConvertFloat4ToU32(color);
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ImDrawList& DrawList = *GetPlotDrawList();
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PushPlotClipRect();
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DrawList.AddLine(ImVec2(xl,y), ImVec2(xr,y), col32, thickness);
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DrawList.AddLine(ImVec2(xl,y), ImVec2(xl+len,y), col32, 3*thickness);
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DrawList.AddLine(ImVec2(xr,y), ImVec2(xr-len,y), col32, 3*thickness);
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ImVec2 old_cursor_pos = ImGui::GetCursorScreenPos();
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ImVec2 new_cursor_pos = ImVec2(xl, y - grab_size / 2.0f);
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ImVec2 new_cursor_pos = ImVec2(xl, y - grab_size / 2.0f);
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ImGui::SetItemAllowOverlap();
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ImGui::SetCursorScreenPos(new_cursor_pos);
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ImGui::InvisibleButton(id, ImVec2(xr - xl, grab_size));
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ImGui::SetCursorScreenPos(old_cursor_pos);
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if (ImGui::IsItemHovered() || ImGui::IsItemActive()) {
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ImGui::SetMouseCursor(ImGuiMouseCursor_ResizeNS);
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int yax = GetCurrentYAxis();
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double range_y = gp.YTicks[yax].Size > 1 ? (gp.YTicks[yax].Ticks[1].PlotPos - gp.YTicks[yax].Ticks[0].PlotPos) : gp.CurrentPlot->YAxis[yax].Range.Size();
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char buf[32];
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snprintf(buf, 32, "%s = %.*f", id, Precision(range_y), *value);
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ImVec2 size = ImGui::CalcTextSize(buf);
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const int pad = 2;
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if (yax == 0) {
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DrawList.AddRectFilled(ImVec2(xl,y-pad-size.y/2), ImVec2(xl + size.x + 2 * pad, y+pad+size.y/2), col32);
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DrawList.AddText(ImVec2(xl+pad,y-size.y/2),CalcTextColor(color),buf);
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}
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else {
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DrawList.AddRectFilled(ImVec2(xr-size.x-2*pad,y-pad-size.y/2), ImVec2(xr, y+pad+size.y/2), col32);
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DrawList.AddText(ImVec2(xr-size.x-pad,y-size.y/2),CalcTextColor(color),buf);
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}
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}
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PopPlotClipRect();
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bool dragging = false;
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if (ImGui::IsItemActive() && ImGui::IsMouseDragging(0)) {
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*value = ImPlot::GetPlotMousePos().y;
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@ -2517,26 +2539,41 @@ bool HorizontalGuide(const char* id, double* value, const ImVec4& col, float thi
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bool VerticalGuide(const char* id, double* value, const ImVec4& col, float thickness) {
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ImPlotContext& gp = *GImPlot;
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IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "VerticalGuide() needs to be called between BeginPlot() and EndPlot()!");
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const float grab_size = 2*thickness;
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const float grab_size = ImMax(6.0f, thickness);
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float yt = gp.BB_Plot.Min.y;
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float yb = gp.BB_Plot.Max.y;
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float x = PlotToPixels(*value,0).x;
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ImU32 col32 = IsColorAuto(col) ? GetStyleColorU32(ImPlotCol_Query) : ImGui::ColorConvertFloat4ToU32(col);
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PushPlotClipRect();
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GetPlotDrawList()->AddLine(ImVec2(x,yt), ImVec2(x,yb), col32, thickness);
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PopPlotClipRect();
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float x = IM_ROUND(PlotToPixels(*value,0).x);
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const bool outside = (x < gp.BB_Plot.Min.x - grab_size / 2 || x > gp.BB_Plot.Max.x + grab_size / 2);
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if (outside)
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return false;
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float len = gp.Style.MajorTickLen.x;
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ImVec4 color = IsColorAuto(col) ? ImGui::GetStyleColorVec4(ImGuiCol_Text) : col;
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ImU32 col32 = ImGui::ColorConvertFloat4ToU32(color);
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ImDrawList& DrawList = *GetPlotDrawList();
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PushPlotClipRect();
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DrawList.AddLine(ImVec2(x,yt), ImVec2(x,yb), col32, thickness);
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DrawList.AddLine(ImVec2(x,yt), ImVec2(x,yt+len), col32, 3*thickness);
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DrawList.AddLine(ImVec2(x,yb), ImVec2(x,yb-len), col32, 3*thickness);
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ImVec2 old_cursor_pos = ImGui::GetCursorScreenPos();
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ImVec2 new_cursor_pos = ImVec2(x - grab_size / 2.0f, yt);
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ImVec2 new_cursor_pos = ImVec2(x - grab_size / 2.0f, yt);
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ImGui::SetItemAllowOverlap();
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ImGui::SetCursorScreenPos(new_cursor_pos);
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ImGui::InvisibleButton(id, ImVec2(grab_size, yb-yt));
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ImGui::SetCursorScreenPos(old_cursor_pos);
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if (ImGui::IsItemHovered() || ImGui::IsItemActive()) {
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ImGui::SetMouseCursor(ImGuiMouseCursor_ResizeEW);
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double range_x = gp.XTicks.Size > 1 ? (gp.XTicks.Ticks[1].PlotPos - gp.XTicks.Ticks[0].PlotPos) : gp.CurrentPlot->XAxis.Range.Size();
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char buf[32];
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snprintf(buf, 32, "%s = %.*f", id, Precision(range_x), *value);
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ImVec2 size = ImGui::CalcTextSize(buf);
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const int pad = 2;
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DrawList.AddRectFilled(ImVec2(x - size.x/2 - pad, yb - size.y - 2*pad), ImVec2(x + pad + size.x/2, yb), col32);
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DrawList.AddText(ImVec2(x - size.x/2, yb - size.y - pad), CalcTextColor(color), buf);
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}
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PopPlotClipRect();
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bool dragging = false;
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if (ImGui::IsItemActive() && ImGui::IsMouseDragging(0)) {
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*value = ImPlot::GetPlotMousePos().x;
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8
implot.h
8
implot.h
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@ -463,10 +463,10 @@ IMPLOT_API bool IsPlotQueried();
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// Returns the current plot query bounds.
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IMPLOT_API ImPlotLimits GetPlotQuery(int y_axis = IMPLOT_AUTO);
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// Shows a draggable horizontal guide line.
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IMPLOT_API bool HorizontalGuide(const char* id, double* value, const ImVec4& col = IMPLOT_AUTO_COL, float thickness = 2);
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// Shows a draggable vertical guide line.
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IMPLOT_API bool VerticalGuide(const char* id, double* value, const ImVec4& col = IMPLOT_AUTO_COL, float thickness = 2);
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// Shows a draggable horizontal guide line. #col defaults to ImGuiCol_Text.
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IMPLOT_API bool HorizontalGuide(const char* id, double* y_value, const ImVec4& col = IMPLOT_AUTO_COL, float thickness = 1);
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// Shows a draggable vertical guide line. #col defaults to ImGuiCol_Text.
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IMPLOT_API bool VerticalGuide(const char* id, double* x_value, const ImVec4& col = IMPLOT_AUTO_COL, float thickness = 1);
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//-----------------------------------------------------------------------------
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// Plot and Item Styling
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@ -806,18 +806,27 @@ void ShowDemoWindow(bool* p_open) {
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}
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//-------------------------------------------------------------------------
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if (ImGui::CollapsingHeader("Guide Lines")) {
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static double v1 = 0.2;
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static double v2 = 0.6;
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static double h1 = 0.25;
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static double h2 = 0.75;
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static double h3 = 0.5;
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if (ImPlot::BeginPlot("##guides",0,0,ImVec2(-1,0),ImPlotFlags_YAxis2)) {
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ImPlot::VerticalGuide("v1",&v1, ImVec4(0,1,0,1));
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ImPlot::VerticalGuide("v2",&v2, ImVec4(0,1,0,1));
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ImPlot::HorizontalGuide("h1",&h1, ImVec4(1,0,0,1));
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ImPlot::HorizontalGuide("h2",&h2, ImVec4(1,0,0,1));
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ImGui::BulletText("Click and drag the horizontal and vertical guide lines.");
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static double x1 = 0.2;
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static double x2 = 0.8;
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static double y1 = 0.25;
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static double y2 = 0.75;
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static double f = 0.1;
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if (ImPlot::BeginPlot("##guides",0,0,ImVec2(-1,0),ImPlotFlags_YAxis2)) {
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ImPlot::VerticalGuide("x1",&x1);
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ImPlot::VerticalGuide("x2",&x2);
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ImPlot::HorizontalGuide("y1",&y1);
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ImPlot::HorizontalGuide("y2",&y2);
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ImPlot::SetPlotYAxis(1);
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ImPlot::HorizontalGuide("h3",&h3, ImVec4(1,1,0,1));
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ImPlot::HorizontalGuide("f",&f, ImVec4(1,0.5f,1,1));
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ImPlot::SetPlotYAxis(0);
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double xs[1000], ys[1000];
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for (int i = 0; i < 1000; ++i) {
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xs[i] = (x2+x1)/2+abs(x2-x1)*(i/990.0f - 0.5f);
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ys[i] = (y1+y2)/2+abs(y2-y1)/2*sin(f*i/10);
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}
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ImPlot::PlotLine("Why Not?", xs, ys, 1000);
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ImPlot::EndPlot();
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}
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}
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