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//
// Created by Alan Freitas on 16/07/20.
//
#include <algorithm>
#include <cmath>
#include <matplot/axes_objects/labels.h>
#include <matplot/core/axes_type.h>
#include <matplot/util/common.h>
#include <sstream>
namespace matplot {
labels::labels(class axes_type *parent, const std::vector<double> &x,
const std::vector<double> &y,
const std::vector<std::string> &labels,
const std::vector<double> &colors,
const std::vector<double> &sizes)
: axes_object(parent), x_(x), y_(y), labels_(labels), colors_(colors),
sizes_(sizes) {}
std::string labels::set_variables_string() {
std::string res;
if (rectangles_) {
auto word_size = [this](size_t word_index) {
if (sizes_.size() > word_index) {
return round(sizes_[word_index]);
} else {
return static_cast<double>(round(parent_->font_size()));
}
};
for (size_t i = 0; i < labels_.size(); ++i) {
double s = word_size(i);
res += " set object " + num2str(1000 + i) +
" rectangle at " + num2str(x_[i]) + ", " +
num2str(y_[i]) + " size " +
num2str(s * labels_[i].size() * width_factor) + ", " +
num2str(s * height_factor) + " fc lt 2 \n";
}
}
return res;
}
std::string labels::plot_string() {
std::string res = " '-' with labels";
switch (alignment_) {
case alignment::left:
res += " left";
break;
case alignment::right:
res += " right";
break;
case alignment::center:
res += " center";
break;
default:
break;
}
res += " font \"" + escape(font()) + "," +
num2str(unsigned(font_size())) + "\"";
if (!colors_.empty()) {
res += " textcolor palette";
} else {
res += " textcolor rgb '" + to_string(color_) + "'";
}
return res;
}
std::string labels::data_string() {
// in absolute size, the rectangles match the words when
// the ranges are x [-17;+17], y [-17,+17]
// if the ranges are smaller than that, we increase the font size
// if the ranges are larger than that, we reduce the font size
double font_size_factor = 1.0;
if (!absolute_size_) {
auto [xmin, xmax, ymin, ymax] = parent_->child_limits();
if (parent_->x_axis().limits_mode_manual()) {
auto [axmin, axmax] = parent_->x_axis().limits();
if (std::isfinite(axmin)) {
xmin = std::min(xmin, axmin);
}
if (std::isfinite(axmax)) {
xmax = std::max(xmax, axmax);
}
}
if (parent_->y_axis().limits_mode_manual()) {
auto [aymin, aymax] = parent_->y_axis().limits();
if (std::isfinite(aymin)) {
ymin = std::min(ymin, aymin);
}
if (std::isfinite(aymax)) {
ymax = std::max(ymax, aymax);
}
}
double xrange = xmax - xmin;
double yrange = ymax - ymin;
double xrange_increase = xrange / 34;
double yrange_increase = yrange / 34;
font_size_factor = (xrange_increase + yrange_increase) / 2.;
}
std::stringstream ss;
ss.precision(10);
ss << std::fixed;
const bool custom_sizes = !sizes_.empty();
const bool custom_colors = !colors_.empty();
for (size_t i = 0; i < labels_.size(); ++i) {
ss << " " << x_[i] << " " << y_[i] << " \"";
if (custom_sizes) {
ss << "{/=" << round(sizes_[i] / font_size_factor) << " ";
}
ss << escape(labels_[i]);
if (custom_sizes) {
ss << "}";
}
ss << "\" ";
if (custom_colors) {
ss << colors_[i];
}
ss << "\n";
}
ss << "e\n";
return ss.str();
}
std::string labels::unset_variables_string() {
std::string res;
if (rectangles_) {
for (size_t i = 0; i < labels_.size(); ++i) {
res += " unset object " + num2str(1000 + i) + "\n";
}
}
return res;
}
double labels::xmax() {
auto it = std::max_element(x_.begin(), x_.end());
if (it != x_.end()) {
return *it + 0.2 + labels_[it - x_.begin()].size() * 0.01;
} else {
return axes_object::xmax();
}
}
double labels::xmin() {
auto it = std::min_element(x_.begin(), x_.end());
if (it != x_.end()) {
return *it - 0.2;
} else {
return axes_object::xmin();
}
}
double labels::ymax() {
auto it = std::max_element(y_.begin(), y_.end());
if (it != y_.end()) {
return *it + 0.2;
} else {
return axes_object::ymax();
}
}
double labels::ymin() {
auto it = std::min_element(y_.begin(), y_.end());
if (it != y_.end()) {
return *it - 0.2;
} else {
return axes_object::ymin();
}
}
enum axes_object::axes_category labels::axes_category() {
return axes_object::axes_category::two_dimensional;
}
bool labels::rectangles() const { return rectangles_; }
class labels &labels::rectangles(bool rectangles) {
rectangles_ = rectangles;
touch();
return *this;
}
bool labels::absolute_size() const { return absolute_size_; }
class labels &labels::absolute_size(bool absolute_size) {
absolute_size_ = absolute_size;
touch();
return *this;
}
enum labels::alignment labels::alignment() const { return alignment_; }
class labels &labels::alignment(enum labels::alignment alignment) {
alignment_ = alignment;
touch();
return *this;
}
const color_array &labels::color() const { return color_; }
class labels &labels::color(const color_array &color) {
color_ = color;
touch();
return *this;
}
const std::string &labels::font() const { return font_; }
class labels &labels::font(std::string_view font) {
font_ = font;
touch();
return *this;
}
float labels::font_size() const { return font_size_; }
class labels &labels::font_size(float font_size) {
font_size_ = font_size;
touch();
return *this;
}
const std::vector<double> &labels::x() const { return x_; }
class labels &labels::x(const std::vector<double> &x) {
x_ = x;
touch();
return *this;
}
const std::vector<double> &labels::y() const { return y_; }
class labels &labels::y(const std::vector<double> &y) {
y_ = y;
touch();
return *this;
}
const std::vector<std::string> &labels::label_values() const {
return labels_;
}
class labels &labels::label_values(const std::vector<std::string> &labels) {
labels_ = labels;
touch();
return *this;
}
const std::vector<double> &labels::colors() const { return colors_; }
class labels &labels::colors(const std::vector<double> &colors) {
colors_ = colors;
touch();
return *this;
}
const std::vector<double> &labels::sizes() const { return sizes_; }
class labels &labels::sizes(const std::vector<double> &sizes) {
sizes_ = sizes;
touch();
return *this;
}
bool labels::visible() const { return visible_; }
class labels &labels::visible(bool visible) {
visible_ = visible;
touch();
return *this;
}
} // namespace matplot