added command line option '--dpi dpinum'.

git-svn-id: svn://sylpheed.sraoss.jp/sylpheed/trunk@3443 ee746299-78ed-0310-b773-934348b2243d

3 files changed, 24 insertions, 4 deletions

diff --git a/src/gtkutils.c b/src/gtkutils.c
index de014305..ec8cd8a2 100644
--- a/src/gtkutils.c
+++ b/src/gtkutils.c
@@ -144,19 +144,23 @@ gboolean gtkut_font_can_load(const gchar *str)
 #endif
 }
 
+static gdouble system_dpi = 0.0;
+
 gdouble gtkut_get_dpi(void)
 {
-	gdouble dpi;
 	gdouble dp, di;
 
+	if (system_dpi > 0.0)
+		return system_dpi;
+
 	//dpi = gdk_screen_get_resolution(gdk_screen_get_default());
 
 	dp = gdk_screen_get_height(gdk_screen_get_default());
 	di = gdk_screen_get_height_mm(gdk_screen_get_default()) / 25.4;
-	dpi = dp / di;
+	system_dpi = dp / di;
 
-	debug_print("gtkut_get_dpi: dpi: %f\n", dpi);
-	return dpi;
+	debug_print("gtkut_get_dpi: dpi: %f\n", system_dpi);
+	return system_dpi;
 }
 
 gdouble gtkut_get_dpi_multiplier(void)
@@ -177,6 +181,11 @@ gdouble gtkut_get_dpi_multiplier(void)
 	return mul;
 }
 
+void gtkut_set_dpi(gdouble dpi)
+{
+	system_dpi = dpi;
+}
+
 void gtkut_convert_int_to_gdk_color(gint rgbvalue, GdkColor *color)
 {
 	g_return_if_fail(color != NULL);
diff --git a/src/gtkutils.h b/src/gtkutils.h
index 3d51132d..1872e672 100644
--- a/src/gtkutils.h
+++ b/src/gtkutils.h
@@ -98,6 +98,7 @@ gboolean gtkut_font_can_load		(const gchar	*str);
 
 gdouble gtkut_get_dpi			(void);
 gdouble gtkut_get_dpi_multiplier	(void);
+void gtkut_set_dpi			(gdouble	 dpi);
 
 void gtkut_convert_int_to_gdk_color	(gint		 rgbvalue,
 					 GdkColor	*color);
diff --git a/src/main.c b/src/main.c
index 033d4f6a..0bc57b1d 100644
--- a/src/main.c
+++ b/src/main.c
@@ -662,6 +662,15 @@ static void parse_cmd_opt(int argc, char *argv[])
 			}
 		} else if (!strncmp(argv[i], "--safe-mode", 11)) {
 			cmd.safe_mode = TRUE;
+		} else if (!strncmp(argv[i], "--dpi", 5)) {
+			if (argv[i + 1]) {
+				gdouble dpi;
+
+				dpi = strtod(argv[i + 1], NULL);
+				if (dpi > 0.0)
+					gtkut_set_dpi(dpi);
+				i++;
+			}
 		} else if (!strncmp(argv[i], "--exit", 6)) {
 			cmd.exit = TRUE;
 		} else if (!strncmp(argv[i], "--help", 6)) {
@@ -686,6 +695,7 @@ static void parse_cmd_opt(int argc, char *argv[])
 #ifdef G_OS_WIN32
 			g_print("%s\n", _("  --ipcport portnum      specify port for IPC remote commands"));
 #endif
+			g_print("%s\n", _("  --dpi dpinum           force DPI"));
 			g_print("%s\n", _("  --exit                 exit Sylpheed"));
 			g_print("%s\n", _("  --debug                debug mode"));
 			g_print("%s\n", _("  --safe-mode            safe mode"));