Merge prusa 2.6.1

src/slic3r/GUI/TextLines.hpp

@@ -0,0 +1,49 @@
+#ifndef slic3r_TextLines_hpp_
+#define slic3r_TextLines_hpp_
+
+#include <vector>
+#include <libslic3r/Polygon.hpp>
+#include <libslic3r/Point.hpp>
+#include <libslic3r/Emboss.hpp>
+#include "slic3r/GUI/GLModel.hpp"
+#include "slic3r/Utils/EmbossStyleManager.hpp"
+
+namespace Slic3r {
+class ModelVolume;
+typedef std::vector<ModelVolume *> ModelVolumePtrs;
+}
+
+namespace Slic3r::GUI {
+class TextLinesModel
+{
+public:
+    /// <summary>
+    /// Initialize model and lines
+    /// </summary>
+    /// <param name="text_tr">Transformation of text volume inside object (aka inside of instance)</param>
+    /// <param name="volumes_to_slice">Vector of volumes to be sliced</param>
+    /// <param name="style_manager">Contain Font file, size and align</param>
+    /// <param name="count_lines">Count lines of embossed text(for veritcal alignment)</param>
+    void init(const Transform3d &text_tr, const ModelVolumePtrs &volumes_to_slice, /*const*/ Emboss::StyleManager &style_manager, unsigned count_lines);
+
+    void render(const Transform3d &text_world);
+
+    bool is_init() const { return m_model.is_initialized(); }
+    void reset() { m_model.reset(); m_lines.clear(); }
+    const Slic3r::Emboss::TextLines &get_lines() const { return m_lines; }
+
+    static double calc_line_height(const Slic3r::Emboss::FontFile& ff, const FontProp& fp); // return lineheight in mm
+private:
+    Slic3r::Emboss::TextLines m_lines;
+
+    // Keep model for visualization text lines
+    GLModel m_model;
+
+    // Used to move slice (text line) on place where is approx vertical center of text
+    // When copy value const double ASCENT_CENTER from Emboss.cpp and Vertical align is center than
+    // text line will cross object center 
+    const double ascent_ratio_offset = 1/3.;
+};
+
+} // namespace Slic3r::GUI
+#endif // slic3r_TextLines_hpp_