add info about used backend in text2image

tesseract-ocr · Oct 20, 2018 · a033261 · a033261
1 parent 4aa98ff
commit a033261
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Showing 3 changed files with 35 additions and 0 deletions.
diff --git a/src/training/pango_font_info.cpp b/src/training/pango_font_info.cpp
@@ -768,4 +768,32 @@ bool FontUtils::SelectFont(const char* utf8_word, const int utf8_len,
 /* static */
 void FontUtils::ReInit() { available_fonts_.clear(); }
 
+// Print info about used font backend
+/* static */
+void FontUtils::PangoFontTypeInfo() {
+  PangoFontMap* font_map = pango_cairo_font_map_get_default();
+  if (pango_cairo_font_map_get_font_type(reinterpret_cast<PangoCairoFontMap*>(
+          font_map)) == CAIRO_FONT_TYPE_TOY) {
+    printf("Using CAIRO_FONT_TYPE_TOY.\n");
+  } else if (pango_cairo_font_map_get_font_type(
+                 reinterpret_cast<PangoCairoFontMap*>(font_map)) ==
+             CAIRO_FONT_TYPE_FT) {
+    printf("Using CAIRO_FONT_TYPE_FT.\n");
+  } else if (pango_cairo_font_map_get_font_type(
+                 reinterpret_cast<PangoCairoFontMap*>(font_map)) ==
+             CAIRO_FONT_TYPE_WIN32) {
+    printf("Using CAIRO_FONT_TYPE_WIN32.\n");
+  } else if (pango_cairo_font_map_get_font_type(
+                 reinterpret_cast<PangoCairoFontMap*>(font_map)) ==
+             CAIRO_FONT_TYPE_QUARTZ) {
+    printf("Using CAIRO_FONT_TYPE_QUARTZ.\n");
+  } else if (pango_cairo_font_map_get_font_type(
+                 reinterpret_cast<PangoCairoFontMap*>(font_map)) ==
+             CAIRO_FONT_TYPE_USER) {
+    printf("Using CAIRO_FONT_TYPE_USER.\n");
+  } else if (!font_map) {
+    printf("Can not create pango cairo font map!\n");
+  }
+}
+
 }  // namespace tesseract
diff --git a/src/training/pango_font_info.h b/src/training/pango_font_info.h
@@ -207,6 +207,7 @@ class FontUtils {
 
   // PangoFontInfo is reinitialized, so clear the static list of fonts.
   static void ReInit();
+  static void PangoFontTypeInfo();
 
  private:
   static std::vector<std::string> available_fonts_;  // cache list

diff --git a/src/training/text2image.cpp b/src/training/text2image.cpp
@@ -682,6 +682,12 @@ static int Main() {
 
 int main(int argc, char** argv) {
   tesseract::CheckSharedLibraryVersion();
+  if (argc > 1) {
+    if ((strcmp(argv[1], "-v") == 0) ||
+      (strcmp(argv[1], "--version") == 0)) {
+    FontUtils::PangoFontTypeInfo();
+    }
+  }
   tesseract::ParseCommandLineFlags(argv[0], &argc, &argv, true);
   return Main();
 }