Function CalcLegendSize

Source/3rdParty/implot/implot.cpp:614–633

}

ImVec2 CalcLegendSize(ImPlotItemGroup& items, const ImVec2& pad, const ImVec2& spacing, bool vertical) {
    // vars
    const int   nItems      = items.GetLegendCount();
    const float txt_ht      = ImGui::GetTextLineHeight();
    const float icon_size   = txt_ht;
    // get label max width
    float max_label_width = 0;
    float sum_label_width = 0;
    for (int i = 0; i < nItems; ++i) {
        const char* label       = items.GetLegendLabel(i);
        const float label_width = ImGui::CalcTextSize(label, nullptr, true).x;
        max_label_width         = label_width > max_label_width ? label_width : max_label_width;
        sum_label_width        += label_width;
    }
    // calc legend size
    const ImVec2 legend_size = vertical ?
                               ImVec2(pad.x * 2 + icon_size + max_label_width, pad.y * 2 + nItems * txt_ht + (nItems - 1) * spacing.y) :
                               ImVec2(pad.x * 2 + icon_size * nItems + sum_label_width + (nItems - 1) * spacing.x, pad.y * 2 + txt_ht);
    return legend_size;
}

bool ClampLegendRect(ImRect& legend_rect, const ImRect& outer_rect, const ImVec2& pad) {
    bool clamped = false;