Add definitions for bidirectional support to Platform.h and provide empty

implementations for each platform.

1 files changed, 20 insertions, 0 deletions

diff --git a/gtk/PlatGTK.cxx b/gtk/PlatGTK.cxx
index 0f5ea58d9..ce0863462 100644
--- a/gtk/PlatGTK.cxx
+++ b/gtk/PlatGTK.cxx
@@ -166,6 +166,10 @@ public:
 	void Ellipse(PRectangle rc, ColourDesired fore, ColourDesired back) override;
 	void Copy(PRectangle rc, Point from, Surface &surfaceSource) override;
 
+	size_t PositionFromX(const IScreenLine *screenLine, XYPOSITION xDistance, bool charPosition) override;
+	XYPOSITION XFromPosition(const IScreenLine *screenLine, size_t caretPosition) override;
+	std::vector<Interval> FindRangeIntervals(const IScreenLine *screenLine, size_t start, size_t end) override;
+
 	void DrawTextBase(PRectangle rc, Font &font_, XYPOSITION ybase, std::string_view text, ColourDesired fore);
 	void DrawTextNoClip(PRectangle rc, Font &font_, XYPOSITION ybase, std::string_view text, ColourDesired fore, ColourDesired back) override;
 	void DrawTextClipped(PRectangle rc, Font &font_, XYPOSITION ybase, std::string_view text, ColourDesired fore, ColourDesired back) override;
@@ -183,6 +187,7 @@ public:
 
 	void SetUnicodeMode(bool unicodeMode_) override;
 	void SetDBCSMode(int codePage) override;
+	void SetBidiR2L(bool bidiR2L_) override;
 };
 }
 
@@ -625,6 +630,18 @@ void SurfaceImpl::Copy(PRectangle rc, Point from, Surface &surfaceSource) {
 	}
 }
 
+size_t SurfaceImpl::PositionFromX(const IScreenLine *, XYPOSITION, bool) {
+	return 0;
+}
+
+XYPOSITION SurfaceImpl::XFromPosition(const IScreenLine *, size_t) {
+	return 0;
+}
+
+std::vector<Interval> SurfaceImpl::FindRangeIntervals(const IScreenLine *, size_t, size_t) {
+	return std::vector<Interval>();
+}
+
 std::string UTF8FromLatin1(std::string_view text) {
 	std::string utfForm(text.length()*2 + 1, '\0');
 	size_t lenU = 0;
@@ -954,6 +971,9 @@ void SurfaceImpl::SetDBCSMode(int codePage) {
 		et = dbcs;
 }
 
+void SurfaceImpl::SetBidiR2L(bool) {
+}
+
 Surface *Surface::Allocate(int) {
 	return new SurfaceImpl();
 }