code: выбор размера шрифта svg

svg.cpp

@@ -14,8 +14,8 @@ const auto BLOCK_WIDTH = 10;
 const auto MAX_WIDTH = IMAGE_WIDTH - TEXT_WIDTH;
 
 void
-svg_text(double left, double baseline, string text) {
+svg_text(double left, double baseline, int font_size, string text) {
-    cout << "<text x='" << left << "' y='" << baseline << "'>" << text << "</text>";
+    cout << "<text x='" << left << "' y='" << baseline << "' font-size='" << font_size << "'>" << text << "</text>";
 }
 
 void
@@ -40,6 +40,20 @@ svg_end() {
 
 void
 show_histogram_svg(const vector<size_t>& bins) {
+    int font_size = 12;
+    bool flag = true;
+    while(flag) {
+        cerr << "Enter font size (8-32): ";
+        cin >> font_size;
+
+        if (font_size < 8) {
+            cerr << "Font size is too small. Please enter a value between 8 and 32." << endl;
+        } else if (font_size > 32) {
+            cerr << "Font size is too large. Please enter a value between 8 and 32." << endl;
+        } else {
+            flag = false;
+        }
+    }
     const auto MAX_WIDTH = IMAGE_WIDTH - TEXT_WIDTH;
     size_t max_count = 0;
     for (size_t x : bins) {
@@ -58,10 +72,9 @@ show_histogram_svg(const vector<size_t>& bins) {
     double top = 0;
     for (size_t bin : bins) {
         double bin_width = BLOCK_WIDTH * bin * scale_factor;
-        svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bin));
+        svg_text(TEXT_LEFT, top + TEXT_BASELINE, font_size, to_string(bin));
         svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT);
         top += BIN_HEIGHT;
     }
     svg_end();
 }
-