projects/dynamin: dynamin/painting/windows_text

annotate dynamin/painting/windows_text_layout.d @ 102:604d20cac836

Add dynamin.core.array and put contains() there.

author	Jordan Miner <jminer7@gmail.com>
date	Tue, 15 May 2012 21:14:48 -0500
parents	301e077da540
children	73060bc3f004

rev	line source
96 301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	1 // Written in the D programming language
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	2 // www.digitalmars.com/d/
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	3
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	4 /*
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	5 * The contents of this file are subject to the Mozilla Public License Version
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	6 * 1.1 (the "License"); you may not use this file except in compliance with
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	7 * the License. You may obtain a copy of the License at
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	8 * http://www.mozilla.org/MPL/
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	9 *
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	10 * Software distributed under the License is distributed on an "AS IS" basis,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	11 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	12 * for the specific language governing rights and limitations under the
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	13 * License.
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	14 *
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	15 * The Original Code is the Dynamin library.
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	16 *
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	17 * The Initial Developer of the Original Code is Jordan Miner.
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	18 * Portions created by the Initial Developer are Copyright (C) 2007-2012
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	19 * the Initial Developer. All Rights Reserved.
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	20 *
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	21 * Contributor(s):
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	22 * Jordan Miner <jminer7@gmail.com>
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	23 *
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	24 */
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	25
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	26 module dynamin.painting.windows_text_layout;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	27
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	28 public import dynamin.c.cairo;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	29 public import dynamin.c.cairo_win32;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	30 public import dynamin.c.windows;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	31 public import dynamin.c.uniscribe;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	32 public import dynamin.painting.graphics;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	33 public import tango.io.Stdout;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	34 public import tango.text.convert.Utf;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	35 public import tango.math.Math;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	36
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	37 //version = TextLayoutDebug;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	38
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	39 template TextLayoutBackend() {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	40 uint charToWcharIndex(uint index) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	41 uint wcharIndex = 0;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	42 foreach(wchar c; text[0..index])
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	43 wcharIndex++;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	44 return wcharIndex;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	45 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	46 uint wcharToCharIndex(uint wcharIndex) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	47 uint decoded = 0, ate = 0, index = 0;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	48 while(decoded < wcharIndex) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	49 decoded += (decode(text[index..$], ate) <= 0xFFFF ? 1 : 2);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	50 index += ate;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	51 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	52 return index;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	53 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	54
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	55 uint nextRight(uint index) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	56 uint wIndex = charToWcharIndex(index);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	57 // this requires using the output from ScriptLayout to move in visual order
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	58 return 0;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	59 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	60
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	61 //{{{ font fallback
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	62 static {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	63 int Latin;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	64 int Greek;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	65 int Cyrillic;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	66 int Armenian;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	67 int Georgian;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	68 int Hebrew;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	69 int Arabic;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	70 int Syriac;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	71 int Thaana;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	72 int Thai;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	73 int Devanagari;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	74 int Tamil;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	75 int Bengali;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	76 int Gurmukhi;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	77 int Gujarati;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	78 int Oriya;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	79 int Telugu;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	80 int Kannada;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	81 int Malayalam;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	82 int Lao;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	83 int Tibetan;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	84 //int Japanese;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	85 int Bopomofo;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	86 int CjkIdeographs;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	87 int CjkSymbols;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	88 int KoreanHangul;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	89 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	90 static this() {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	91 Latin = getUniscribeScript("JKL");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	92 Greek = getUniscribeScript("ΠΡΣ");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	93 Cyrillic = getUniscribeScript("КЛМ");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	94 Armenian = getUniscribeScript("ԺԻԼ");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	95 Georgian = getUniscribeScript("ႩႪႫ");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	96 Hebrew = getUniscribeScript("הוז");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	97 Arabic = getUniscribeScript("ثجح");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	98 Syriac = getUniscribeScript("ܕܗܚ");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	99 Thaana = getUniscribeScript("ގޏސ");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	100 Thai = getUniscribeScript("ฆงจ");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	101 Devanagari = getUniscribeScript("जझञ");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	102 Tamil = getUniscribeScript("ஜஞட");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	103 Bengali = getUniscribeScript("জঝঞ");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	104 Gurmukhi = getUniscribeScript("ਜਝਞ");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	105 Gujarati = getUniscribeScript("જઝઞ");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	106 Oriya = getUniscribeScript("ଜଝଞ");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	107 Telugu = getUniscribeScript("జఝఞ");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	108 Kannada = getUniscribeScript("ಜಝಞ");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	109 Malayalam = getUniscribeScript("ജഝഞ");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	110 Lao = getUniscribeScript("ຄງຈ");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	111 Tibetan = getUniscribeScript("ཇཉཊ");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	112 //Japanese = getUniscribeScript("せゼｶ"); // TODO: on XP, returned more than 1 item
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	113 Bopomofo = getUniscribeScript("ㄐㄓㄗ"); // Chinese
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	114 CjkIdeographs = getUniscribeScript("丛东丝");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	115 CjkSymbols = getUniscribeScript("、〜㈬");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	116 KoreanHangul = getUniscribeScript("갠흯㉡");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	117 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	118 // returns the Uniscribe script number (SCRIPT_ANALYSIS.eScript) from the specified sample text
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	119 static int getUniscribeScript(wchar[] sample) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	120 SCRIPT_ITEM[5] items;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	121 int itemsProcessed;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	122 HRESULT r = ScriptItemize(sample.ptr,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	123 sample.length,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	124 items.length-1,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	125 null,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	126 null,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	127 items.ptr,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	128 &itemsProcessed);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	129 assert(r == 0);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	130 assert(itemsProcessed == 1);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	131 return items[0].a.eScript.get();
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	132 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	133
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	134 // adds fallback fonts to the specified fallbacks array
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	135 void getFontFallbacks(int script, wchar[][] fallbacks) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	136 int i = 0;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	137 void addFallback(wchar[] str) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	138 fallbacks[i++] = str;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	139 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	140 if(script == Latin \|\| script == Greek \|\| script == Cyrillic)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	141 addFallback("Times New Roman");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	142 else if(script == Hebrew \|\| script == Arabic)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	143 addFallback("Times New Roman");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	144 else if(script == Armenian \|\| script == Georgian)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	145 addFallback("Sylfaen"); // fits in well with English fonts
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	146 else if(script == Bengali)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	147 addFallback("Vrinda");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	148 else if(Devanagari)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	149 addFallback("Mangal");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	150 else if(script == Gujarati)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	151 addFallback("Shruti");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	152 else if(script == Gurmukhi)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	153 addFallback("Raavi");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	154 else if(script == Kannada)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	155 addFallback("Tunga");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	156 else if(script == Malayalam)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	157 addFallback("Kartika");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	158 else if(script == Syriac)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	159 addFallback("Estrangelo Edessa");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	160 else if(script == Tamil)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	161 addFallback("Latha");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	162 else if(script == Telugu)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	163 addFallback("Gautami");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	164 else if(script == Thaana)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	165 addFallback("MV Boli");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	166 else if(script == Thai)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	167 addFallback("Tahoma"); // fits in well with English fonts
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	168 //else if(script == Japanese)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	169 // addFallback("MS Mincho"); // Meiryo doesn't fit in with SimSun...
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	170 else if(script == Bopomofo \|\| script == CjkIdeographs \|\| script == CjkSymbols)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	171 addFallback("SimSun");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	172 else if(script == KoreanHangul)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	173 addFallback("Batang");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	174 else if(script == Oriya)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	175 addFallback("Kalinga"); // new with Vista
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	176 else if(script == Lao)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	177 addFallback("DokChampa"); // new with Vista
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	178 else if(script == Tibetan)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	179 addFallback("Microsoft Himalaya"); // new with Vista
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	180
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	181 // Arial Unicode MS is not shipped with Windows, but is with Office
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	182 addFallback("Arial Unicode MS");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	183 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	184 //}}}
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	185
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	186 /*bool isRightAligned() {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	187 return alignment == TextAlignment.Right \|\|
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	188 ((alignment == TextAlignment.Justify \|\| alignment == TextAlignment.Natural) &&
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	189 items[0].a.fRTL);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	190 }*/
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	191 /*struct Run {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	192 double height;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	193 int wtextIndex;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	194 int itemIndex;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	195 WORD[] logClusters; // length == length of text as UTF-16
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	196 WORD[] glyphs;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	197 SCRIPT_VISATTR[] visAttrs; // length == glyphs.length
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	198 int[] advanceWidths; // length == glyphs.length
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	199 GOFFSET[] offsets; // length == glyphs.length
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	200 }*/
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	201 // TODO: should save memory if logClusters, glyphs, visAttrs, advanceWidths, & offsets
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	202 // were made as one big array and these were just slices of them
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	203 // Then reuse the big array every time in layout()
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	204
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	205 void backend_splitRun(uint runIndex, uint splitIndex) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	206 visAttrs.insert(visAttrs[runIndex], runIndex);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	207 visAttrs[runIndex] = visAttrs[runIndex][0..runs[runIndex].glyphs.length];
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	208 visAttrs[runIndex+1] = visAttrs[runIndex+1][runs[runIndex].glyphs.length..$];
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	209
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	210 offsets.insert(offsets[runIndex], runIndex);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	211 offsets[runIndex] = offsets[runIndex][0..runs[runIndex].glyphs.length];
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	212 offsets[runIndex+1] = offsets[runIndex+1][runs[runIndex].glyphs.length..$];
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	213 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	214 // returns the number of UTF-8 code units (bytes) it takes to encode the
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	215 // specified UTF-16 code unit; returns 4 for a high surrogate and 0 for a low surrogate
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	216 int getUtf8Width(wchar c) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	217 if(c >= 0x00 && c <= 0x7F) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	218 return 1;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	219 } else if(c >= 0x0080 && c <= 0x07FF) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	220 return 2;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	221 } else if(isHighSurrogate(c)) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	222 return 4;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	223 } else if(isLowSurrogate(c)) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	224 return 0;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	225 } else {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	226 return 3;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	227 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	228 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	229
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	230 SCRIPT_ITEM[] items;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	231 List!(SCRIPT_VISATTR[]) visAttrs; // one for each Run, same length as Run.glyphs
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	232 List!(GOFFSET[]) offsets; // one for each Run, same length as Run.glyphs
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	233 void backend_preprocess(Graphics g) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	234 wchar[] wtext = toString16(text);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	235
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	236 //{{{ call ScriptItemize() and ScriptBreak()
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	237 SCRIPT_CONTROL scriptControl;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	238 SCRIPT_STATE scriptState;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	239 // TODO: digit substitution?
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	240
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	241 if(items.length < 50)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	242 items.length = 50;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	243 int itemsProcessed;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	244 // On 7, ScriptItemize returns E_OUTOFMEMORY outright if the 3rd param isn't at least 12.
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	245 // Every period, question mark, quotation mark, start of number, etc. starts a new item.
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	246 // A short English sentence can easily have 10 items.
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	247 while(ScriptItemize(wtext.ptr,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	248 wtext.length,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	249 items.length-1,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	250 &scriptControl,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	251 &scriptState,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	252 items.ptr,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	253 &itemsProcessed) == E_OUTOFMEMORY) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	254 items.length = items.length * 2;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	255 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	256 items = items[0..itemsProcessed+1]; // last item is the end of string
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	257
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	258 for(int i = 0; i < logAttrs.length; ++i) // clear array from previous use
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	259 logAttrs[i] = LogAttr.init;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	260 logAttrs.length = text.length;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	261 int laIndex = 0;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	262
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	263 SCRIPT_LOGATTR[] tmpAttrs;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	264 bool lastWhitespace = false;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	265 for(int i = 0; i < items.length-1; ++i) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	266 wchar[] itemText = wtext[items[i].iCharPos..items[i+1].iCharPos];
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	267 tmpAttrs.length = itemText.length;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	268 HRESULT result = ScriptBreak(itemText.ptr, itemText.length, &items[i].a, tmpAttrs.ptr);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	269 if(FAILED(result))
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	270 throw new Exception("ScriptBreak() failed");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	271
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	272 // ScriptBreak() does not set fSoftBreak for the first character of items, even
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	273 // when it needs to be (it doesn't know what comes before them...). This loop sets
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	274 // it for characters after a breakable whitespace.
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	275 for(int j = 0; j < tmpAttrs.length; ++j) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	276 if(tmpAttrs[j].fWhiteSpace.get()) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	277 lastWhitespace = true;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	278 } else {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	279 if(lastWhitespace) // not whitespace, but last char was
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	280 tmpAttrs[j].fSoftBreak.set(true);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	281 lastWhitespace = false;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	282 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	283
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	284 // have to convert the SCRIPT_LOGATTR array, which corresponds with the UTF-16
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	285 // encoding, to the LogAttr array, which corresponds with the UTF-8 encoding
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	286 if(tmpAttrs[j].fSoftBreak.get())
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	287 logAttrs[laIndex].softBreak = true;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	288 if(tmpAttrs[j].fCharStop.get())
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	289 logAttrs[laIndex].clusterStart = true;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	290 if(tmpAttrs[j].fWordStop.get())
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	291 logAttrs[laIndex].wordStart = true;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	292
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	293 laIndex += getUtf8Width(itemText[j]);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	294 if(isHighSurrogate(itemText[j]))
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	295 j++; // skip the low surrogate
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	296 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	297 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	298 assert(laIndex == logAttrs.length);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	299 //}}}
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	300
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	301 // ScriptShape and some other functions need an HDC. If the target surface is win32,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	302 // just use its DC. Otherwise, create a 1x1 DIB and use its DC.
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	303 cairo_surface_t* targetSurface = cairo_get_target(g.handle);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	304 cairo_surface_flush(targetSurface);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	305 cairo_t* cr = g.handle;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	306 HDC hdc = cairo_win32_surface_get_dc(targetSurface);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	307 cairo_surface_t* tmpSurface;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	308 if(!hdc) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	309 cairo_format_t format = CAIRO_FORMAT_ARGB32;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	310 if(cairo_surface_get_type(targetSurface) == CAIRO_SURFACE_TYPE_IMAGE)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	311 format = cairo_image_surface_get_format(targetSurface);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	312 tmpSurface = cairo_win32_surface_create_with_dib(format, 1, 1);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	313 cr = cairo_create(tmpSurface);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	314 hdc = cairo_win32_surface_get_dc(tmpSurface);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	315 assert(hdc != null);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	316 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	317 scope(exit) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	318 if(tmpSurface) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	319 cairo_destroy(cr);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	320 cairo_surface_destroy(tmpSurface);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	321 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	322 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	323
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	324 clearRuns(); // releaseScaledFont() must be called when a run is removed
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	325
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	326 if(!visAttrs)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	327 visAttrs = new List!(SCRIPT_VISATTR[]);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	328 visAttrs.clear();
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	329 if(!offsets)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	330 offsets = new List!(GOFFSET[]);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	331 offsets.clear();
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	332 List!(BYTE) levels = new List!(BYTE)(items.length+4); // 4 gives padding for 2 formattings
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	333
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	334 SaveDC(hdc);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	335 int splitter(uint i) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	336 return i < items.length ? wcharToCharIndex(items[i].iCharPos) : -1;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	337 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	338 int itemIndex = 0;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	339 // Merge the SCRIPT_ITEMs with runs that have the same format
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	340 // The only formats that matter here are the ones that affect the size or
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	341 // shape of characters, so use &fontFormatRuns
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	342 foreach(start, length, format; fontFormatRuns(&splitter)) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	343 uint wstart = charToWcharIndex(start);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	344 uint wend = charToWcharIndex(start+length);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	345 if(items[itemIndex+1].iCharPos == wstart)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	346 itemIndex++;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	347
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	348 levels.add(items[itemIndex].a.s.uBidiLevel.get());
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	349
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	350 cairo_matrix_t ctm;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	351 cairo_get_matrix(cr, &ctm);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	352 cairo_scaled_font_t* font = getScaledFont(format.fontFamily,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	353 format.fontSize,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	354 format.bold,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	355 format.italic,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	356 ctm);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	357 cairo_win32_scaled_font_select_font(font, hdc);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	358 // Cairo sets up the HDC to be scaled 32 times larger than stuff will be drawn.
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	359 // get_metrics_factor returns the factor necessary to convert to font space units.
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	360 // Font space units need multiplied by the font size to get device units
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	361 // multipling by to_dev converts from logical units to device units
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	362 double to_dev = cairo_win32_scaled_font_get_metrics_factor(font) * format.fontSize;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	363
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	364 SCRIPT_CACHE cache = null;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	365 scope(exit) ScriptFreeCache(&cache);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	366
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	367 wchar[] range = wtext[wstart..wend];
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	368
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	369 WORD[] outGlyphs = new WORD[range.length * 3 / 2 + 16];
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	370 WORD[] logClust = new WORD[range.length];
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	371 SCRIPT_VISATTR[] sva = new SCRIPT_VISATTR[outGlyphs.length];
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	372 int glyphsReturned;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	373 do {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	374 HRESULT result = ScriptShape(hdc,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	375 &cache,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	376 range.ptr,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	377 range.length,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	378 outGlyphs.length,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	379 &items[itemIndex].a,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	380 outGlyphs.ptr,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	381 logClust.ptr,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	382 sva.ptr,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	383 &glyphsReturned);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	384 if(result == E_OUTOFMEMORY) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	385 outGlyphs.length = outGlyphs.length * 3 / 2;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	386 sva.length = outGlyphs.length;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	387 continue;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	388 } else if(result == USP_E_SCRIPT_NOT_IN_FONT) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	389 // TODO: font fallback
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	390 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	391 /*SCRIPT_FONTPROPERTIES fontProps;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	392 ScriptGetFontProperties(hdc, &cache, &fontProps);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	393 Stdout("*****Blank: ")(fontProps.wgBlank).newline;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	394 Stdout(fontProps.wgDefault).newline;*/
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	395 } while(false);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	396 outGlyphs = outGlyphs[0..glyphsReturned];
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	397 sva = sva[0..glyphsReturned];
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	398 visAttrs.add(sva);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	399
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	400 int[] advance = new int[outGlyphs.length];
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	401 GOFFSET[] goffset = new GOFFSET[outGlyphs.length];
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	402 // the docs mistakenly say the GOFFSET array is optional,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	403 // but it is actually the ABC structure
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	404 if(FAILED(ScriptPlace(hdc,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	405 &cache,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	406 outGlyphs.ptr,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	407 outGlyphs.length,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	408 sva.ptr,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	409 &items[itemIndex].a,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	410 advance.ptr,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	411 goffset.ptr,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	412 null)))
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	413 throw new Exception("ScriptPlace failed");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	414 for(int i = 0; i < goffset.length; ++i) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	415 goffset[i].du = cast(LONG)(goffset[i].du * to_dev);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	416 goffset[i].dv = cast(LONG)(goffset[i].dv * to_dev);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	417 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	418 offsets.add(goffset);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	419 // TODO: handle errors well
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	420 // TODO: kerning here
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	421
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	422 Run run;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	423 run.font = font;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	424 cairo_font_extents_t extents;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	425 cairo_scaled_font_extents(run.font, &extents);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	426 run.height = extents.height;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	427
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	428 run.start = start;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	429 run.length = length;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	430 run.rightToLeft = items[itemIndex].a.fRTL.get() ? true : false;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	431
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	432 run.clusterMap = new uint[run.length];
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	433 int clusterIndex = 0;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	434 for(int i = 0; i < logClust.length; ++i) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	435 int width = getUtf8Width(range[i]);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	436 if(isHighSurrogate(range[i]))
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	437 i++; // skip the low surrogate
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	438 for(; width > 0; --width) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	439 run.clusterMap[clusterIndex] = logClust[i];
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	440 clusterIndex++;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	441 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	442 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	443 assert(clusterIndex == run.length);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	444
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	445 run.glyphs = new uint[outGlyphs.length];
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	446 for(int i = 0; i < outGlyphs.length; ++i)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	447 run.glyphs[i] = outGlyphs[i];
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	448
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	449 run.advanceWidths = new float[advance.length];
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	450 for(int i = 0; i < advance.length; ++i)
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	451 run.advanceWidths[i] = advance[i] * to_dev;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	452
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	453 runs.add(run);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	454
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	455 cairo_win32_scaled_font_done_font(font);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	456
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	457 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	458 RestoreDC(hdc, -1);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	459 assert(itemIndex == items.length-2); // last item is end of string
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	460
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	461 // fill in visToLogMap
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	462 visToLogMap = new uint[runs.count];
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	463 if(FAILED( ScriptLayout(levels.count, levels.data.ptr, cast(int*)visToLogMap.ptr, null) ))
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	464 throw new Exception("ScriptLayout() failed");
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	465
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	466 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	467
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	468 static cairo_scaled_font_t* backend_createScaledFont(string family,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	469 double size,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	470 bool bold,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	471 bool italic,
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	472 cairo_matrix_t* ctm) {
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	473 LOGFONT lf;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	474 lf.lfHeight = -cast(int)size; // is this ignored by cairo? uses font_matrix instead?
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	475 lf.lfWeight = bold ? 700 : 400;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	476 lf.lfItalic = italic;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	477 lf.lfCharSet = 1; // DEFAULT_CHARSET
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	478 auto tmp = toString16(family);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	479 lf.lfFaceName[0..tmp.length] = tmp;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	480 lf.lfFaceName[tmp.length] = '\0';
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	481
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	482 auto face = cairo_win32_font_face_create_for_logfontw(&lf);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	483 scope(exit) cairo_font_face_destroy(face);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	484
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	485 cairo_matrix_t font_matrix;
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	486 cairo_matrix_init_scale(&font_matrix, size, size);
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	487 return cairo_scaled_font_create(face, &font_matrix, ctm, cairo_font_options_create());
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	488 }
301e077da540 Add the beginnings of a Windows Uniscribe text backend. Jordan Miner <jminer7@gmail.com> parents: diff changeset	489 }

Mercurial > projects > dynamin

annotate dynamin/painting/windows_text_layout.d @ 102:604d20cac836