1 module pango.bidi_type; 2 3 import pango.utils; 4 import pango.c.bidi_type; 5 6 import glib; 7 8 /** 9 * PangoBidiType: 10 * L: Left-to-Right 11 * LRE: Left-to-Right Embedding 12 * LRO: Left-to-Right Override 13 * R: Right-to-Left 14 * AL: Right-to-Left Arabic 15 * RLE: Right-to-Left Embedding 16 * RLO: Right-to-Left Override 17 * PDF: Pop Directional Format 18 * EN: European Number 19 * ES: European Number Separator 20 * ET: European Number Terminator 21 * AN: Arabic Number 22 * CS: Common Number Separator 23 * NSM: Nonspacing Mark 24 * BN: Boundary Neutral 25 * B: Paragraph Separator 26 * S: Segment Separator 27 * WS: Whitespace 28 * ON: Other Neutrals 29 * 30 * The #PangoBidiType type represents the bidirectional character 31 * type of a Unicode character as specified by the 32 * <ulink url="http://www.unicode.org/reports/tr9/">Unicode bidirectional algorithm</ulink>. 33 * 34 * Since: 1.22 35 **/ 36 enum BidiType { 37 /* Strong types */ 38 L = PangoBidiType.PANGO_BIDI_TYPE_L, 39 LRE = PangoBidiType.PANGO_BIDI_TYPE_LRE, 40 LRO = PangoBidiType.PANGO_BIDI_TYPE_LRO, 41 R = PangoBidiType.PANGO_BIDI_TYPE_R, 42 AL = PangoBidiType.PANGO_BIDI_TYPE_AL, 43 RLE = PangoBidiType.PANGO_BIDI_TYPE_RLE, 44 RLO = PangoBidiType.PANGO_BIDI_TYPE_RLO, 45 46 /* Weak types */ 47 PDF = PangoBidiType.PANGO_BIDI_TYPE_PDF, 48 EN = PangoBidiType.PANGO_BIDI_TYPE_EN, 49 ES = PangoBidiType.PANGO_BIDI_TYPE_ES, 50 ET = PangoBidiType.PANGO_BIDI_TYPE_ET, 51 AN = PangoBidiType.PANGO_BIDI_TYPE_AN, 52 CS = PangoBidiType.PANGO_BIDI_TYPE_CS, 53 NSM = PangoBidiType.PANGO_BIDI_TYPE_NSM, 54 BN = PangoBidiType.PANGO_BIDI_TYPE_BN, 55 56 /* Neutral types */ 57 B = PangoBidiType.PANGO_BIDI_TYPE_B, 58 S = PangoBidiType.PANGO_BIDI_TYPE_S, 59 WS = PangoBidiType.PANGO_BIDI_TYPE_WS, 60 ON = PangoBidiType.PANGO_BIDI_TYPE_ON 61 } 62 63 64 pure BidiType bidiTypeForUnichar(dchar ch) 65 { 66 return cast(BidiType)pango_bidi_type_for_unichar(ch); 67 } 68 69 /** 70 * PangoDirection: 71 * LTR: A strong left-to-right direction 72 * RTL: A strong right-to-left direction 73 * TTB_LTR: Deprecated value; treated the 74 * same as %PANGO_DIRECTION_RTL. 75 * TTB_RTL: Deprecated value; treated the 76 * same as %PANGO_DIRECTION_LTR 77 * Weak_LTR: A weak left-to-right direction 78 * Weak_RTL: A weak right-to-left direction 79 * Neutral: No direction specified 80 * 81 * The #PangoDirection type represents a direction in the 82 * Unicode bidirectional algorithm; not every value in this 83 * enumeration makes sense for every usage of #PangoDirection; 84 * for example, the return value of pango_unichar_direction() 85 * and pango_find_base_dir() cannot be %PANGO_DIRECTION_WEAK_LTR 86 * or %PANGO_DIRECTION_WEAK_RTL, since every character is either 87 * neutral or has a strong direction; on the other hand 88 * %PANGO_DIRECTION_NEUTRAL doesn't make sense to pass 89 * to pango_itemize_with_base_dir(). 90 * 91 * The %PANGO_DIRECTION_TTB_LTR, %PANGO_DIRECTION_TTB_RTL 92 * values come from an earlier interpretation of this 93 * enumeration as the writing direction of a block of 94 * text and are no longer used; See #PangoGravity for how 95 * vertical text is handled in Pango. 96 **/ 97 enum Direction { 98 LTR = PangoDirection.PANGO_DIRECTION_LTR, 99 RTL = PangoDirection.PANGO_DIRECTION_RTL, 100 TTB_LTR = PangoDirection.PANGO_DIRECTION_TTB_LTR, 101 TTB_RTL = PangoDirection.PANGO_DIRECTION_TTB_RTL, 102 Weak_LTR = PangoDirection.PANGO_DIRECTION_WEAK_LTR, 103 Weak_RTL = PangoDirection.PANGO_DIRECTION_WEAK_RTL, 104 Neutral = PangoDirection.PANGO_DIRECTION_NEUTRAL 105 } 106 107 pure Direction unicharDirection(dchar ch) { 108 return cast(Direction)pango_unichar_direction(ch); 109 } 110 111 Direction findBaseDir(string text) { 112 return cast(Direction)pango_find_base_dir(text.ptr, cast(int)text.length); 113 } 114 115 116 //deprecated("use g_unichar_get_mirror_char") 117 //gboolean pango_get_mirror_char (gunichar ch, 118 // gunichar *mirrored_ch); 119