1 files changed, 34 insertions, 13 deletions

diff --git a/app/wlib/gtklib/print.c b/app/wlib/gtklib/print.c
index cad7e57..8e96e3b 100644
--- a/app/wlib/gtklib/print.c
+++ b/app/wlib/gtklib/print.c
@@ -25,12 +25,15 @@
 #include <malloc.h>
 #endif
 #include <math.h>
+#include <string.h>
 
 #define GTK_DISABLE_SINGLE_INCLUDES
 #define GDK_DISABLE_DEPRECATED
 #define GTK_DISABLE_DEPRECATED
 #define GSEAL_ENABLE
 
+#define PRODUCT "XTRKCAD"
+
 #include <gtk/gtk.h>
 #include <gdk/gdk.h>
 
@@ -87,6 +90,7 @@ static double lBorder;			/**< left margin */
 static double bBorder;			/**< bottom margin */
 
 static double scale_adjust = 1.0;
+static double scale_text = 1.0;
 
 static long printFormat = PRINT_LANDSCAPE;
 
@@ -605,7 +609,8 @@ void psPrintString(
     /** \todo use a getter function instead of double conversion */
     desc = pango_font_description_from_string(wlibFontTranslate(fp));
 
-    pango_font_description_set_size(desc, fs * PANGO_SCALE );
+
+    pango_font_description_set_size(desc, fs * PANGO_SCALE * scale_text);
 
     // render the string to a Pango layout
     pango_layout_set_font_description(layout, desc);
@@ -619,7 +624,7 @@ void psPrintString(
     metrics = pango_context_get_metrics(pcontext, desc,
                                         pango_context_get_language(pcontext));
 
-    ascent = pango_font_metrics_get_ascent(metrics) / PANGO_SCALE * scale_adjust ;
+    ascent = pango_font_metrics_get_ascent(metrics) / PANGO_SCALE *scale_adjust;
 
     cairo_identity_matrix(cr);
 
@@ -852,19 +857,35 @@ wBool_t wPrintDocStart(const char * title, int fTotalPageCount, int * copiesP)
         //update the paper dimensions
         WlibGetPaperSize();
 
-        /* for the file based surfaces the resolution is 72 dpi (see documentation) */
+        /* for all surfaces including files the resolution is always 72 ppi (as all GTK uses PDF) */
         surface_type = cairo_surface_get_type(psPrint_d.curPrintSurface);
 
-        if (surface_type == CAIRO_SURFACE_TYPE_PDF ||
-                surface_type == CAIRO_SURFACE_TYPE_PS  ||
-                surface_type == CAIRO_SURFACE_TYPE_SVG) {
-        	double p_def=600;
-        	cairo_surface_set_fallback_resolution (psPrint_d.curPrintSurface, p_def, p_def);
-        	psPrint_d.dpi = p_def;
-        	scale_adjust = 72/p_def;
-        } else {
-            psPrint_d.dpi = (double)gtk_print_settings_get_resolution(settings);
-        }
+        const char * printer_name = gtk_print_settings_get_printer(settings);
+        /*
+         * Override up-scaling for some printer drivers/Linux systems that don't support the latest CUPS
+         * - the user sets the environment variable XTRKCADPRINTSCALE to a value
+         * and we just let the dpi default to 72ppi and set scaling to that value.
+         * And for PangoText we allow an override via variable XTRKCADPRINTTEXTSCALE
+         * Note - doing this will introduce differing artifacts.
+         *
+         */
+        char * sEnvScale = PRODUCT "PRINTSCALE";
+
+        if ((strcmp(printer_name,"Print to File") == 0) || getenv(sEnvScale) == NULL) {
+			double p_def = 600;
+			cairo_surface_set_fallback_resolution(psPrint_d.curPrintSurface, p_def, p_def);
+			psPrint_d.dpi = p_def;
+			scale_adjust = 72/p_def;
+		} else {
+			char * sEnvTextScale = PRODUCT "PRINTTEXTSCALE";
+			if (getenv(sEnvTextScale) && (atof(getenv(sEnvTextScale)) != 0.0)) {
+				scale_text = atof(getenv(sEnvTextScale));
+			} else scale_text = 1.0;
+			if (getenv(sEnvScale) && (atof(getenv(sEnvScale)) != 0.0)) {
+				scale_adjust = atof(getenv(sEnvScale));
+			} else scale_adjust = 1.0;
+			psPrint_d.dpi = 72;
+		}
 
         // in XTrackCAD 0,0 is top left, in cairo bottom left. This is
         // corrected via the following transformations.