main.cpp

@@ -1,100 +1,44 @@
 #include <iostream>
-#include <string>
-#include <sstream>
 #include <vector>
 #include <curl/curl.h>
-#include <stdio.h>
 #include "histogram.h"
 #include "text.h"
 #include "svg.h"
 using namespace std;
-
 struct Input {
     vector<double> numbers;
     size_t bin_count{};
 };
 
 Input
-input_data(istream& inp, bool prompt){
+input_data(istream& in, bool prompt){
     size_t number_count;
-    if (prompt){
-        cerr << "enter number_count";
-    }
-    inp >> number_count;
+    in >> number_count;
+
+    Input inp;
+    inp.numbers.resize(number_count);
 
-    Input in;
-    in.numbers.resize(number_count);
-    if (prompt){
-        std::cerr << "enter numbers";
-    }
-    for (size_t i = 0; i < number_count; i++){
-        inp >> in.numbers[i];
-    }
     if (prompt){
         std::cerr << "enter bin_count";
     }
-    inp >> in.bin_count;
-    return in;
-}
 
-size_t
-write_data(void* items, size_t item_size, size_t item_count, void* ctx) {
-    stringstream* buffer = reinterpret_cast<stringstream*>(ctx);
-    size_t data_size = item_size * item_count;
-    (*buffer).write(reinterpret_cast<const char*>(items), data_size);
-    return data_size;
-}
-
-string
-filling(const string& key, const string& color){
-    if(strcmp(key.c_str(), "-fill") == 0){
-        if (strcmp(color.c_str(), " ") == 0){
-            cerr << "Error: no color specified";
-            exit(1);
-        }
-        return color.c_str();
+    for (size_t i = 0; i < number_count; i++){
+        in >> inp.numbers[i];
     }
-}
 
-Input
-download(const string& adress){
-    stringstream buffer;
-    CURL* curl = curl_easy_init();
-    if(curl) {
-        CURLcode res;
-        curl_easy_setopt(curl, CURLOPT_URL, adress.c_str());
-        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
-        curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buffer);
-        res = curl_easy_perform(curl);
-        if (res != CURLE_OK){
-            cerr << curl_easy_strerror(res);
-            exit(1);
-        }
-        curl_easy_cleanup(curl);
-    }
-    return input_data(buffer, false);
+    in >> inp.bin_count;
+
+    return inp;
 }
 
 int main(int argc, char* argv[]){
-    string color = "base";
     curl_global_init(CURL_GLOBAL_ALL);
-    Input in;
-    if (argc > 1) {
-        in = download(argv[1]);
-    } else {
-        in = input_data(cin, true);
+    if (argc > 1){
+        cerr << "argv[0] = " << argv[0] << "argc = " << argc;
+        return 0;
     }
-
-    if (argc > 2){
-        if (argv[3] == NULL){
-            color = filling(argv[2], " ");
-        }
-        else{
-        color = filling(argv[2], argv[3]);
-        }
-    }
-
+    auto in = input_data(cin, true);
     auto bins = make_histogram(in.numbers, in.bin_count);
     auto borders = make_borders(in.numbers, in.bin_count);
-    show_histogram_svg(bins, borders, in.bin_count, color);
+    show_histogram_svg(bins, borders, in.bin_count);
 }

svg.cpp

@@ -27,7 +27,7 @@ void svg_rect(double x, double y, double width, double height, string stroke = "
 }
 
 void
-show_histogram_svg(const vector<size_t>& bins, const std::vector<double>& borders, size_t bin_count, string filling) {
+show_histogram_svg(const vector<size_t>& bins, const std::vector<double>& borders, size_t bin_count) {
     const auto IMAGE_WIDTH = 400;
     const auto IMAGE_HEIGHT = 300;
     const auto TEXT_LEFT = 20;
@@ -40,33 +40,26 @@ show_histogram_svg(const vector<size_t>& bins, const std::vector<double>& border
     size_t max_bin = *max_element(bins.begin(), bins.end());
     size_t number_of_blocks;
     double top = 0;
-    size_t paint_swicher = 0;
-    string color;
+    size_t color = 0;
     size_t border = 0;
     for (size_t bin: bins){
-        if (filling != "base"){
-            color = filling;
-        }
-        else{
-            color = colors[paint_swicher];
-        }
         number_of_blocks = bin;
         if ((max_bin * BLOCK_WIDTH) > (IMAGE_WIDTH - TEXT_WIDTH)){
             number_of_blocks = ((IMAGE_WIDTH - TEXT_WIDTH)/10) * (static_cast<double>(bin) / max_bin);
         }
         const double bin_width = BLOCK_WIDTH * number_of_blocks;
         svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bin));
-        svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT, "black", color);
-        paint_swicher += 1;
-        if (paint_swicher > 6){
-            paint_swicher = 0;
-        }
+        svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT, "black", colors[color]);
         if (border < bin_count - 1){
             top += BIN_HEIGHT;
             svg_text(TEXT_LEFT / 2, top + TEXT_BASELINE , to_string(borders[border]));
             border += 1;
             top += BIN_HEIGHT;
         }
+        color += 1;
+        if (color > 6){
+            color = 0;
+        }
     }
     svg_end();
 }