Mozilla2:GFXTextRun: Difference between revisions

Revision as of 03:57, 11 April 2005

@@ Line 1: / Line 1: @@
-For text we can have something like this.
+== Class gfxTextRun ==
- class TextRun {
+[http://lxr.mozilla.org/mozilla/source/gfx/thebes/public/gfxTextRun.h gfxTextRun.h]
-   // these do not copy the text
-   TextRun(const char* ASCII, int length);
-   TextRun(const PRUnichar* unicode, int length);
-   void SetFont(nsFont* font, nsIAtom* language);
-   enum { ClusterStart = 0x1 } CharFlags;
-   // ClusterStart: character is the first character of a cluster/glyph
-   void GetCharacterFlags(int pos, int len, CharFlags* flags);
-   struct Dimensions {
-     double ascent, descent, width, leftBearing, rightBearing;
-   };
-   Dimensions MeasureText(int pos, int len);
-   // Compute how many characters from this string starting at
-   // character 'pos' and up to length 'len' fit
-   // into the given width. 'breakflags' indicates our
-   // preferences about where we allow breaks.
-   // We will usually want to call MeasureText right afterwards,
-   // the implementor could optimize for that.
-   int GetCharsFit(int pos, int len, double width, int breakflags);
-   int GetPositionInString(Point pt);
- };
-For Graphics we can have something like this
-   // Assumes that the whole TextRun is to be drawn at the current
-   // position, and renders a substring of it.
-   DrawString(TextRun text, int pos, int len);