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authorNeil <nyamatongwe@gmail.com>2018-05-23 15:41:59 +1000
committerNeil <nyamatongwe@gmail.com>2018-05-23 15:41:59 +1000
commit7ee2a70c18f899a4845621622241adc578b0400c (patch)
tree2f4f7b7a5869523ec8baae1751e39c0f1f7851b3 /include/Platform.h
parent05845e8e5d1d934a16550f33099be89d189bfcad (diff)
downloadscintilla-mirror-7ee2a70c18f899a4845621622241adc578b0400c.tar.gz
Add definitions for bidirectional support to Platform.h and provide empty
implementations for each platform.
Diffstat (limited to 'include/Platform.h')
-rw-r--r--include/Platform.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/include/Platform.h b/include/Platform.h
index e83b8e5e5..9606ecab4 100644
--- a/include/Platform.h
+++ b/include/Platform.h
@@ -317,6 +317,24 @@ public:
friend class SurfaceImpl;
};
+class IScreenLine {
+public:
+ virtual std::string_view Text() const = 0;
+ virtual size_t Length() const = 0;
+ virtual size_t RepresentationCount() const = 0;
+ virtual XYPOSITION Width() const = 0;
+ virtual XYPOSITION Height() const = 0;
+ virtual XYPOSITION TabWidth() const = 0;
+ virtual XYPOSITION TabWidthMinimumPixels() const = 0;
+ virtual const Font *FontOfPosition(size_t position) const = 0;
+ virtual XYPOSITION RepresentationWidth(size_t position) const = 0;
+};
+
+struct Interval {
+ XYPOSITION left;
+ XYPOSITION right;
+};
+
/**
* A surface abstracts a place to draw.
*/
@@ -354,6 +372,10 @@ public:
virtual void Ellipse(PRectangle rc, ColourDesired fore, ColourDesired back)=0;
virtual void Copy(PRectangle rc, Point from, Surface &surfaceSource)=0;
+ virtual size_t PositionFromX(const IScreenLine *screenLine, XYPOSITION xDistance, bool charPosition)=0;
+ virtual XYPOSITION XFromPosition(const IScreenLine *screenLine, size_t caretPosition)=0;
+ virtual std::vector<Interval> FindRangeIntervals(const IScreenLine *screenLine, size_t start, size_t end)=0;
+
virtual void DrawTextNoClip(PRectangle rc, Font &font_, XYPOSITION ybase, std::string_view text, ColourDesired fore, ColourDesired back) = 0;
virtual void DrawTextClipped(PRectangle rc, Font &font_, XYPOSITION ybase, std::string_view text, ColourDesired fore, ColourDesired back) = 0;
virtual void DrawTextTransparent(PRectangle rc, Font &font_, XYPOSITION ybase, std::string_view text, ColourDesired fore) = 0;
@@ -370,6 +392,7 @@ public:
virtual void SetUnicodeMode(bool unicodeMode_)=0;
virtual void SetDBCSMode(int codePage)=0;
+ virtual void SetBidiR2L(bool bidiR2L_)=0;
};
/**