projects/dynamin: dynamin/painting/text

annotate dynamin/painting/text_layout.d @ 85:ded31d46f75f

Add TextLayout. So far, it handles character formatting and does not draw.

author	Jordan Miner <jminer7@gmail.com>
date	Mon, 19 Jul 2010 18:37:14 -0500
parents
children	41b430aa319f

rev	line source
85 ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	1 module dynamin.painting.text_layout;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	2
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	3 import dynamin.core.list;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	4 import dynamin.core.string;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	5 import dynamin.painting.color;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	6 import tango.text.convert.Utf;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	7 import tango.io.Stdout;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	8
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	9 //{{{ character formatting types
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	10 /// The line style of an underline, strikethrough, or overline.
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	11 // TODO: add images of what these line styles look like
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	12 enum LineStyle {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	13 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	14 None,
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	15 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	16 Single,
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	17 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	18 Double,
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	19 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	20 Dotted,
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	21 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	22 Dashed,
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	23 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	24 Wavy
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	25 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	26
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	27 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	28 enum SmallType {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	29 // Specifies normal text.
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	30 Normal,
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	31 // Specifies text smaller than normal and raised above the normal baseline.
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	32 Superscript,
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	33 // Specifies text smaller than normal and lowered below the normal baseline.
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	34 Subscript
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	35 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	36
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	37 /// A change in character formatting.
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	38 struct FormatChange {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	39 uint index;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	40 FormatType type;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	41 FormatData data;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	42
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	43 static FormatChange opCall(uint i, FormatType t, FormatData d) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	44 FormatChange c;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	45 c.index = i;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	46 c.type = t;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	47 c.data = d;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	48 return c;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	49 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	50 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	51 /**
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	52 * Returns true if data1 is equal to data2.
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	53 */
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	54 bool formatDataEqual(FormatType type, FormatData data1, FormatData data2) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	55 if(type == FormatType.FontFamily)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	56 return data1.family == data2.family;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	57 else if(type == FormatType.FontSize)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	58 return data1.size == data2.size;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	59 else if(type == FormatType.Bold \|\| type == FormatType.Italic)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	60 return data1.on == data2.on;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	61 else if(type == FormatType.Underline \|\| type == FormatType.Strikethrough \|\|
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	62 type == FormatType.Overline)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	63 return data1.style == data2.style;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	64 else if(type == FormatType.Small)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	65 return data1.type == data2.type;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	66 else if(type == FormatType.ForeColor \|\| type == FormatType.BackColor)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	67 return data1.color == data2.color;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	68 else if(type == FormatType.Spacing)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	69 return data1.multiple == data2.multiple;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	70 else
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	71 throw new Exception("unknown type");
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	72 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	73
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	74 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	75 enum FormatType : ubyte {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	76 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	77 FontFamily = 1,
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	78 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	79 FontSize,
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	80 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	81 Bold,
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	82 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	83 Italic,
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	84 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	85 Underline,
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	86 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	87 Strikethrough,
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	88 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	89 Overline,
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	90 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	91 Small,
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	92 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	93 ForeColor,
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	94 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	95 BackColor,
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	96 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	97 Spacing
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	98 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	99
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	100 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	101 union FormatData {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	102 /// Valid for FontFamily
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	103 string family;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	104 /// Valid for FontSize
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	105 double size;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	106 /// Valid for Bold and Italic
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	107 bool on;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	108 /// Valid for Underline, Strikethrough, and Overline
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	109 LineStyle style;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	110 /// Valid for Small
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	111 SmallType type;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	112 /// Valid for ForeColor and BackColor
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	113 Color color;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	114 /// Valid for Spacing
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	115 double multiple;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	116 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	117
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	118 struct Format {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	119 string fontFamily; // no default
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	120 double fontSize; // no default
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	121 bool bold = false;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	122 bool italic = false;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	123 LineStyle underline = LineStyle.None;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	124 LineStyle strikethrough = LineStyle.None;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	125 LineStyle overline = LineStyle.None;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	126 SmallType small = SmallType.Normal;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	127 Color foreColor = Color(255, 0, 0, 0); // black
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	128 Color backColor = Color( 0, 0, 0, 0); // transparent
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	129 double spacing = 1.0;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	130
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	131 FormatData getDataForType(FormatType type) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	132 FormatData data;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	133 if(type == FormatType.FontFamily)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	134 data.family = fontFamily;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	135 else if(type == FormatType.FontSize)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	136 data.size = fontSize;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	137 else if(type == FormatType.Bold)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	138 data.on = bold;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	139 else if(type == FormatType.Italic)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	140 data.on = italic;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	141 else if(type == FormatType.Underline)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	142 data.style = underline;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	143 else if(type == FormatType.Strikethrough)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	144 data.style = strikethrough;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	145 else if(type == FormatType.Overline)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	146 data.style = overline;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	147 else if(type == FormatType.Small)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	148 data.type = small;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	149 else if(type == FormatType.ForeColor)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	150 data.color = foreColor;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	151 else if(type == FormatType.BackColor)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	152 data.color = backColor;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	153 else if(type == FormatType.Spacing)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	154 data.multiple = spacing;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	155 else
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	156 throw new Exception("unknown type");
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	157 return data;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	158 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	159 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	160 //}}}
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	161
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	162 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	163 enum TextAlignment {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	164 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	165 Left,
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	166 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	167 Center,
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	168 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	169 Right,
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	170 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	171 Justify
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	172 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	173
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	174 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	175 enum TabStopType {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	176 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	177 Left,
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	178 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	179 Center,
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	180 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	181 Right,
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	182 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	183 Decimal
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	184 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	185
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	186 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	187 struct TabStop {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	188 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	189 uint location;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	190 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	191 TabStopType type = TabStopType.Left;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	192 ///
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	193 char leading = '.';
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	194 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	195
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	196 /**
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	197 *
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	198 */
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	199 class TextLayout {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	200 string text;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	201
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	202 // character formatting
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	203 List!(FormatChange) formatting; // Always sorted by FormatChange.index
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	204 Format initialFormat;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	205
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	206 // paragraph formatting
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	207 double lineSpacing = 1.0;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	208 double defaultTabStopLocations = 0; // 0 means default tabs every (4 * width of character '0')
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	209 TabStop[] tabStops;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	210 TextAlignment alignment = TextAlignment.Left;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	211
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	212 this(string fontFamily, double fontSize) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	213 formatting = new List!(FormatChange);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	214 initialFormat.fontFamily = fontFamily;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	215 initialFormat.fontSize = fontSize;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	216 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	217 invariant {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	218 // ensure that formatting is sorted correctly
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	219 uint index = 0;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	220 foreach(change; formatting) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	221 assert(change.index >= index);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	222 index = change.index;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	223 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	224 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	225
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	226 //{{{ character formatting
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	227 void setFontFamily(string family, uint start, uint length) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	228 FormatData data;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	229 data.family = family;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	230 setFormat(FormatType.FontFamily, data, start, length);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	231 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	232 void setFontSize(double size, uint start, uint length) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	233 FormatData data;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	234 data.size = size;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	235 setFormat(FormatType.FontSize, data, start, length);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	236 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	237
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	238 void setBold(bool on, uint start, uint length) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	239 FormatData data;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	240 data.on = on;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	241 setFormat(FormatType.Bold, data, start, length);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	242 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	243 void setItalic(bool on, uint start, uint length) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	244 FormatData data;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	245 data.on = on;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	246 setFormat(FormatType.Italic, data, start, length);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	247 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	248 void setUnderline(LineStyle style, uint start, uint length) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	249 FormatData data;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	250 data.style = style;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	251 setFormat(FormatType.Underline, data, start, length);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	252 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	253 void setStrikethrough(LineStyle style, uint start, uint length) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	254 FormatData data;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	255 data.style = style;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	256 setFormat(FormatType.Strikethrough, data, start, length);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	257 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	258 void setOverline(LineStyle style, uint start, uint length) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	259 FormatData data;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	260 data.style = style;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	261 setFormat(FormatType.Overline, data, start, length);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	262 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	263
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	264 /// Sets the text either superscript or subscript.
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	265 void setSmall(SmallType type, uint start, uint length) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	266 FormatData data;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	267 data.type = type;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	268 setFormat(FormatType.Small, data, start, length);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	269 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	270 // see http://en.wikipedia.org/wiki/Subscript_and_superscript#Desktop_publishing for
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	271 // info on positioning superscript and subscript
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	272
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	273 void setForeColor(Color color, uint start, uint length) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	274 FormatData data;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	275 data.color = color;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	276 setFormat(FormatType.ForeColor, data, start, length);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	277 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	278 void setBackColor(Color color, uint start, uint length) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	279 FormatData data;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	280 data.color = color;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	281 setFormat(FormatType.BackColor, data, start, length);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	282 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	283
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	284 /**
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	285 * Sets the spacing between characters, given in multiples of a character's width.
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	286 * For example, a multiple of 2.0 would make drawn text take twice as much space
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	287 * horizontally, due to twice as much space being given to each character.
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	288 */
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	289 void setSpacing(double multiple, uint start, uint length) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	290 FormatData data;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	291 data.multiple = multiple;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	292 setFormat(FormatType.Spacing, data, start, length);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	293 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	294
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	295 void setFormat(FormatType type, FormatData data, uint start, uint length) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	296 uint end = start + length;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	297 checkIndex(start);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	298 checkIndex(end);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	299
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	300 FormatData endData = getFormat(type, end);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	301
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	302 for(int i = formatting.count-1; i >= 0; --i) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	303 if(formatting[i].type == type && formatting[i].index <= end) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	304 if(formatting[i].index >= start)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	305 formatting.removeAt(i);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	306 else
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	307 break;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	308 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	309 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	310
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	311 if(!formatDataEqual(type, getFormat(type, start), data)) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	312 insertFormatChange(FormatChange(start, type, data));
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	313 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	314
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	315 // make sure that the formatting >= end stays the same as it was
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	316 if(!formatDataEqual(type, endData, getFormat(type, end))) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	317 insertFormatChange(FormatChange(end, type, endData));
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	318 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	319 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	320 FormatData getFormat(FormatType type, uint index) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	321 checkIndex(index);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	322 FormatData data = initialFormat.getDataForType(type);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	323 for(int i = 0; i < formatting.count; ++i) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	324 if(formatting[i].index > index)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	325 break;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	326 if(formatting[i].type == type)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	327 data = formatting[i].data;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	328 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	329 return data;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	330 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	331 private void insertFormatChange(FormatChange change) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	332 int i = 0;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	333 while(i < formatting.count && formatting[i].index <= change.index)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	334 ++i;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	335 formatting.insert(change, i);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	336 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	337 //}}}
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	338 private void checkIndex(uint index) {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	339 if(index == 0)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	340 return;
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	341 if(cropRight!(char)(text[0..index]).length != index)
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	342 throw new Exception("index must be at a valid code point, not inside one");
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	343 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	344 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	345
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	346 unittest {
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	347 auto t = new TextLayout("Tahoma", 15);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	348 t.text = "How are you doing today?";
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	349 t.setBold(true, 4, 3); // "are"
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	350 assert(t.formatting.count == 2);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	351 t.setBold(true, 7, 4); // " you"
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	352 assert(t.formatting.count == 2);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	353 t.setBold(true, 1, 3); // "ow "
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	354 assert(t.formatting.count == 2);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	355 t.setBold(true, 8, 9); // "you doing"
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	356 assert(t.formatting.count == 2);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	357 t.setBold(true, 0, 18); // "How are you doing "
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	358 assert(t.formatting.count == 2);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	359 assert(t.formatting[0].type == FormatType.Bold);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	360 assert(t.formatting[0].data.on == true);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	361 assert(t.formatting[1].type == FormatType.Bold);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	362 assert(t.formatting[1].data.on == false);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	363 t.setBold(false, 0, 24);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	364 assert(t.formatting.count == 0);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	365
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	366 t.setBold(true, 4, 3); // "are"
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	367 assert(t.formatting.count == 2);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	368 t.setBold(true, 8, 3); // "you"
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	369 assert(t.formatting.count == 4);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	370 t.setBold(true, 1, 16); // "ow are you doing"
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	371 assert(t.formatting.count == 2);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	372 t.setBold(false, 4, 8); // "are you "
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	373 assert(t.formatting.count == 4);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	374 assert(t.formatting[0].index == 1);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	375 assert(t.formatting[0].data.on == true);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	376 assert(t.formatting[1].index == 4);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	377 assert(t.formatting[1].data.on == false);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	378 assert(t.formatting[2].index == 12);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	379 assert(t.formatting[2].data.on == true);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	380 assert(t.formatting[3].index == 17);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	381 assert(t.formatting[3].data.on == false);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	382 t.setBold(false, 1, 3); // "ow "
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	383 assert(t.formatting.count == 2);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	384 t.setUnderline(LineStyle.Double, 8, 9); // "you doing"
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	385 assert(t.formatting.count == 4);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	386 t.setBold(false, 0, 20); // "How are you doing t"
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	387 assert(t.formatting.count == 2);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	388 assert(t.formatting[0].type == FormatType.Underline);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	389 assert(t.formatting[1].type == FormatType.Underline);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	390 t.setUnderline(LineStyle.Single, 12, 11); // "doing today"
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	391 assert(t.formatting.count == 3);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	392 assert(t.formatting[0].data.style == LineStyle.Double);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	393 assert(t.formatting[1].data.style == LineStyle.Single);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	394 assert(t.formatting[2].data.style == LineStyle.None);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	395 t.setUnderline(LineStyle.None, 4, 14); // "are you doing "
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	396 assert(t.formatting.count == 2);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	397 assert(t.formatting[0].data.style == LineStyle.Single);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	398 assert(t.formatting[0].index == 18);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	399 t.setUnderline(LineStyle.None, 4, 20); // "are you doing today?"
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	400 assert(t.formatting.count == 0);
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	401 }
ded31d46f75f Add TextLayout. So far, it handles character formatting and does not draw. Jordan Miner <jminer7@gmail.com> parents: diff changeset	402

Mercurial > projects > dynamin

annotate dynamin/painting/text_layout.d @ 85:ded31d46f75f