workbench/classes/zune/texteditor/mcc/NewGfx.c

   1 /***************************************************************************
   2
   3  TextEditor.mcc - Textediting MUI Custom Class
   4  Copyright (C) 1997-2000 Allan Odgaard
   5  Copyright (C) 2005-2014 TextEditor.mcc Open Source Team
   6
   7  This library is free software; you can redistribute it and/or
   8  modify it under the terms of the GNU Lesser General Public
   9  License as published by the Free Software Foundation; either
  10  version 2.1 of the License, or (at your option) any later version.
  11
  12  This library is distributed in the hope that it will be useful,
  13  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  Lesser General Public License for more details.
  16
  17  TextEditor class Support Site:  http://www.sf.net/projects/texteditor-mcc
  18
  19  $Id$
  20
  21 ***************************************************************************/
  22
  23 #include <proto/graphics.h>
  24
  25 #include "private.h"
  26
  27 #include "Debug.h"
  28
  29 /// TextLengthNew
  30 LONG TextLengthNew(struct RastPort *rp, const char *string, ULONG count, LONG tabSizePixels)
  31 {
  32   LONG result = 0;
  33   const char *tptr = string;
  34   const char *tptr0 = string;
  35   LONG count0 = 0;
  36
  37   ENTER();
  38
  39   do
  40   {
  41     char c;
  42
  43     if(count == 0)
  44     {
  45       // we parsed the string until the end
  46       // add the remaining characters' width
  47       if(count0 != 0)
  48         result += TextLength(rp, tptr0, count0);
  49       break;
  50     }
  51
  52     // check the next character
  53     c = *tptr++;
  54     if(c == '\t')
  55     {
  56       // we found a TAB, calculate the characters' width so far
  57       if(count0 != 0)
  58         result += TextLength(rp, tptr0, count0);
  59
  60       tptr0 = tptr;
  61       count0 = 0;
  62
  63       // add the size of a TAB
  64       result += tabSizePixels;
  65     }
  66     else
  67       count0++;
  68
  69     count--;
  70   }
  71   while(TRUE);
  72
  73   RETURN(result);
  74   return(result);
  75 }
  76
  77 ///
  78 /// TextFitNew
  79 ULONG TextFitNew(struct RastPort *rp, const char *string, ULONG strLen, struct TextExtent *textExtent, const struct TextExtent *constrainingExtent, LONG strDirection, LONG constrainingBitWidth, LONG constrainingBitHeight, LONG tabSizePixels)
  80 {
  81   ULONG result = 0;
  82   ULONG strLen0 = 0;
  83   const char *tptr = string;
  84   const char *tptr0 = string;
  85
  86   ENTER();
  87
  88   do
  89   {
  90     char c;
  91
  92     if(strLen == 0)
  93     {
  94       // we parsed the string until the end
  95       // add the number of fitting remaining characters
  96       result += TextFit(rp, tptr0, strLen0, textExtent, (struct TextExtent *)constrainingExtent, strDirection, constrainingBitWidth, constrainingBitHeight);
  97       break;
  98     }
  99
 100     // check the next character
 101     c = *tptr++;
 102     if(c == '\t')
 103     {
 104       // we found a TAB, calculate the number of fitting characters so far
 105       if(strLen0 != 0)
 106         result += TextFit(rp, tptr0, strLen0, textExtent, (struct TextExtent *)constrainingExtent, strDirection, constrainingBitWidth, constrainingBitHeight);
 107
 108       // substract the width of the maximum width
 109       constrainingBitWidth -= TextLengthNew(rp, tptr0, strLen0+1, tabSizePixels);
 110       // bail out if no space is left
 111       if(constrainingBitWidth <= 0)
 112         break;
 113
 114       result++;
 115       tptr0 = tptr;
 116       strLen0 = 0;
 117     }
 118     else
 119       strLen0++;
 120
 121     strLen--;
 122   }
 123   while(TRUE);
 124
 125   RETURN(result);
 126   return(result);
 127 }
 128
 129 ///
 130 /// TextNew
 131 void TextNew(struct RastPort *rp, const char *string, ULONG count, LONG tabSizePixels)
 132 {
 133   const char *tptr = string;
 134   const char *tptr0 = string;
 135   LONG count0 = 0;
 136
 137   ENTER();
 138
 139   do
 140   {
 141     char c;
 142
 143     if(count == 0)
 144     {
 145       // we parsed the string until the end
 146       // print out the remaining characters
 147       Text(rp, tptr0, count0);
 148       break;
 149     }
 150
 151     // check the next character
 152     c = *tptr++;
 153     if(c == '\t')
 154     {
 155       // we found a TAB, print out the characters so far
 156       if(count0 != 0)
 157         Text(rp, tptr0, count0);
 158
 159       tptr0 = tptr;
 160       count0 = 0;
 161
 162       // advance the rastport's cursor position
 163       rp->cp_x += tabSizePixels;
 164     }
 165     else
 166       count0++;
 167
 168     count--;
 169   }
 170   while(TRUE);
 171
 172   LEAVE();
 173 }
 174
 175 ///