From aace6162d698ebbc56e4020a4eef5f233950eaa4 Mon Sep 17 00:00:00 2001
From: SavinSA <SavinSA@mpei.ru>
Date: Sun, 21 Apr 2024 23:08:45 +0300
Subject: [PATCH] =?UTF-8?q?svg:=20=D0=B8=D0=B7=D0=BE=D0=B1=D1=80=D0=B0?=
 =?UTF-8?q?=D0=B6=D0=B5=D0=BD=D0=B8=D0=B5?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .gitignore       |  1 +
 cs-lab34.vcxproj |  5 ++++
 main.cpp         |  4 ++--
 svg.cpp          | 61 ++++++++++++++++++++++++++++++++++++++++++++++++
 svg.h            |  3 +++
 text.cpp         |  3 ++-
 6 files changed, 74 insertions(+), 3 deletions(-)
 create mode 100644 svg.cpp
 create mode 100644 svg.h

diff --git a/.gitignore b/.gitignore
index 6911aac..945db11 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@
 /x64
 /unittest.vcxproj.filters
 /unittest.vcxproj.user
+/unittest.sln
\ No newline at end of file
diff --git a/cs-lab34.vcxproj b/cs-lab34.vcxproj
index d02216c..1afea30 100644
--- a/cs-lab34.vcxproj
+++ b/cs-lab34.vcxproj
@@ -129,8 +129,13 @@
   <ItemGroup>
     <ClCompile Include="histogram.cpp" />
     <ClCompile Include="main.cpp" />
+    <ClCompile Include="svg.cpp" />
     <ClCompile Include="text.cpp" />
   </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="histogram_internal.h" />
+    <ClInclude Include="svg.h" />
+  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
diff --git a/main.cpp b/main.cpp
index f5e24d0..df865ea 100644
--- a/main.cpp
+++ b/main.cpp
@@ -3,6 +3,7 @@
 #include <string>
 #include "histogram.h"
 #include "text.h"
+#include "svg.h"
 using namespace std;
 struct Input {
     vector<double> numbers;
@@ -32,9 +33,8 @@ int main()
 {
     const size_t SCREEN_WIDTH = 80;
     const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
-
     auto in = input_data();
     auto bins = make_histogram(in.numbers, in.bin_count);
-    show_histogram_text(bins, MAX_ASTERISK, in.bin_count);
+    show_histogram_svg(bins);
     return 0;
 }
diff --git a/svg.cpp b/svg.cpp
new file mode 100644
index 0000000..c57a5f8
--- /dev/null
+++ b/svg.cpp
@@ -0,0 +1,61 @@
+#include <iostream>
+#include <vector>
+#include <string>
+using namespace std;
+
+void
+svg_begin(double width, double height) {
+    cout << "<?xml version='1.0' encoding='UTF-8'?>\n";
+    cout << "<svg ";
+    cout << "width='" << width << "' ";
+    cout << "height='" << height << "' ";
+    cout << "viewBox='0 0 " << width << " " << height << "' ";
+    cout << "xmlns='http://www.w3.org/2000/svg'>\n";
+}
+
+void
+svg_end() {
+    cout << "</svg>\n";
+}
+
+void
+svg_text(double left, double baseline, string text) {
+    cout << "<text x='" << left << "' y='" << baseline << "'>" << text << "</text>";
+}
+
+void
+svg_rect(double x, double y, double width, double height, string stroke, string fill) {
+    cout << "<rect x='" << x << "' y='" << y << "' width='" << width << "' height='" << height << "' stroke='" << stroke << "' fill='" << fill << "' />";
+}
+
+
+
+void
+show_histogram_svg(const vector<double>& bins) {
+    const auto IMAGE_WIDTH = 400;
+    const auto IMAGE_HEIGHT = 300;
+    const auto TEXT_LEFT = 20;
+    const auto TEXT_BASELINE = 20;
+    const auto TEXT_WIDTH = 50;
+    const auto BIN_HEIGHT = 30;
+    const auto BLOCK_WIDTH = 10;
+    const auto MAX_WIDTH = (IMAGE_WIDTH - TEXT_WIDTH);
+
+    double max_count = (bins[0] * BLOCK_WIDTH);
+    for (double bin : bins) {
+        if ((bin * BLOCK_WIDTH) > max_count) {
+            max_count = (bin * BLOCK_WIDTH);
+        }
+    }
+
+    svg_begin(400, 300);
+    double top = 0;
+    for (double bin : bins) {
+        const double bin_width = MAX_WIDTH * ((BLOCK_WIDTH * bin) / max_count);
+        svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bin));
+        svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT, "blue", "#aaffaa");
+        top += BIN_HEIGHT;
+    }
+    svg_end();
+}
+
diff --git a/svg.h b/svg.h
new file mode 100644
index 0000000..f29e7e3
--- /dev/null
+++ b/svg.h
@@ -0,0 +1,3 @@
+#pragma once
+#include <vector>
+void show_histogram_svg(const std::vector<double>& bins);
diff --git a/text.cpp b/text.cpp
index f4ecca4..920df62 100644
--- a/text.cpp
+++ b/text.cpp
@@ -1,10 +1,11 @@
 #include "text.h"
+#include "svg.h"
 #include <string>
 #include <iostream>
 using namespace std;
 
 void
-show_histogram_text(const vector<double>& bins, size_t MAX_ASTERISK, size_t bin_count) {
+show_histogram_svg(const vector<double>& bins, size_t MAX_ASTERISK, size_t bin_count) {
     double max_count = bins[0];
     for (double x : bins) {
         if (x > max_count) {