From 1b934518b3a7d22ed7d751aee5a03e731c0fc1b9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luk=C3=A1=C5=A1=20Hejl?= <hejl.lukas@gmail.com>
Date: Tue, 2 Aug 2022 13:20:54 +0200
Subject: [PATCH] Modified text drawing methods in debugging visualization
 (SVG) to support changing font size.

---
 src/libslic3r/SVG.cpp | 24 +++++++++++++-----------
 src/libslic3r/SVG.hpp |  4 ++--
 2 files changed, 15 insertions(+), 13 deletions(-)

diff --git a/src/libslic3r/SVG.cpp b/src/libslic3r/SVG.cpp
index 6a743b1eb..4928d5433 100644
--- a/src/libslic3r/SVG.cpp
+++ b/src/libslic3r/SVG.cpp
@@ -274,26 +274,28 @@ std::string SVG::get_path_d(const ClipperLib::Path &path, double scale, bool clo
     return d.str();
 }
 
-void SVG::draw_text(const Point &pt, const char *text, const char *color)
+void SVG::draw_text(const Point &pt, const char *text, const char *color, const coordf_t font_size)
 {
     fprintf(this->f,
-        "<text x=\"%f\" y=\"%f\" font-family=\"sans-serif\" font-size=\"20px\" fill=\"%s\">%s</text>",
-        to_svg_x(pt(0)-origin(0)),
-        to_svg_y(pt(1)-origin(1)),
+        R"(<text x="%f" y="%f" font-family="sans-serif" font-size="%fpx" fill="%s">%s</text>)",
+        to_svg_x(float(pt.x() - origin.x())),
+        to_svg_y(float(pt.y() - origin.y())),
+        font_size,
         color, text);
 }
 
-void SVG::draw_legend(const Point &pt, const char *text, const char *color)
+void SVG::draw_legend(const Point &pt, const char *text, const char *color, const coordf_t font_size)
 {
     fprintf(this->f,
-        "<circle cx=\"%f\" cy=\"%f\" r=\"10\" fill=\"%s\"/>",
-        to_svg_x(pt(0)-origin(0)),
-        to_svg_y(pt(1)-origin(1)),
+        R"(<circle cx="%f" cy="%f" r="10" fill="%s"/>)",
+        to_svg_x(float(pt.x() - origin.x())),
+        to_svg_y(float(pt.y() - origin.y())),
         color);
     fprintf(this->f,
-        "<text x=\"%f\" y=\"%f\" font-family=\"sans-serif\" font-size=\"10px\" fill=\"%s\">%s</text>",
-        to_svg_x(pt(0)-origin(0)) + 20.f,
-        to_svg_y(pt(1)-origin(1)),
+        R"(<text x="%f" y="%f" font-family="sans-serif" font-size="%fpx" fill="%s">%s</text>)",
+        to_svg_x(float(pt.x() - origin.x())) + 20.f,
+        to_svg_y(float(pt.y() - origin.y())),
+        font_size,
         "black", text);
 }
 
diff --git a/src/libslic3r/SVG.hpp b/src/libslic3r/SVG.hpp
index 314fae9b9..3ff2213d8 100644
--- a/src/libslic3r/SVG.hpp
+++ b/src/libslic3r/SVG.hpp
@@ -72,8 +72,8 @@ public:
     void draw(const ClipperLib::Path  &polygon, double scale, std::string fill = "grey", coordf_t stroke_width = 0);
     void draw(const ClipperLib::Paths &polygons, double scale, std::string fill = "grey", coordf_t stroke_width = 0);
 
-    void draw_text(const Point &pt, const char *text, const char *color);
-    void draw_legend(const Point &pt, const char *text, const char *color);
+    void draw_text(const Point &pt, const char *text, const char *color, coordf_t font_size = 20.f);
+    void draw_legend(const Point &pt, const char *text, const char *color, coordf_t font_size = 10.f);
 
     void Close();