Use SurfaceMode struct as a way to inform Surface of modes like code page and

bidirectional options in an extensible way instead of adding a call for each
element.

1 files changed, 13 insertions, 0 deletions

diff --git a/src/Platform.h b/src/Platform.h
index 568c571cc..3afa24c92 100644
--- a/src/Platform.h
+++ b/src/Platform.h
@@ -163,6 +163,17 @@ public:
 };
 
 /**
+ * Parameters for surfaces.
+ */
+struct SurfaceMode {
+	int codePage = 0;
+	bool bidiR2L = false;
+	SurfaceMode() = default;
+	explicit SurfaceMode(int codePage_, bool bidiR2L_) noexcept : codePage(codePage_), bidiR2L(bidiR2L_) {
+	}
+};
+
+/**
  * A surface abstracts a place to draw.
  */
 class Surface {
@@ -179,6 +190,8 @@ public:
 	virtual void Init(SurfaceID sid, WindowID wid)=0;
 	virtual void InitPixMap(int width, int height, Surface *surface_, WindowID wid)=0;
 
+	virtual void SetMode(SurfaceMode mode)=0;
+
 	enum class Ends {
 		semiCircles = 0x0,
 		leftFlat = 0x1,