workbench/classes/zune/texteditor/mcc/SetBlock.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 <string.h>
  24
  25 #include <proto/utility.h>
  26
  27 #include "private.h"
  28 #include "Debug.h"
  29
  30 /// mSetBlock()
  31 IPTR mSetBlock(struct InstData *data, struct MUIP_TextEditor_SetBlock *msg)
  32 {
  33   BOOL result = TRUE;
  34   struct marking newblock;
  35
  36   ENTER();
  37
  38   // initialize newblock
  39   newblock.enabled = FALSE;
  40
  41   // now we check&set the start variables to their corresponding values
  42   if(msg->starty == MUIV_TextEditor_SetBlock_Min)
  43     newblock.startline = LineNode(data, 1);
  44   else  if(msg->starty == MUIV_TextEditor_SetBlock_Max)
  45     newblock.startline = LineNode(data, data->totallines+1);
  46   else if(msg->starty >= 0 && msg->starty <= data->totallines)
  47     newblock.startline = LineNode(data, msg->starty+1);
  48   else
  49     result = FALSE;
  50
  51   if((LONG)msg->startx == MUIV_TextEditor_SetBlock_Min)
  52     newblock.startx = 0;
  53   else if(newblock.startline != NULL)
  54   {
  55     if(msg->startx == MUIV_TextEditor_SetBlock_Max)
  56       newblock.startx = (newblock.startline)->line.Length;
  57     else if(msg->startx >= 0 && msg->startx <= (newblock.startline)->line.Length)
  58       newblock.startx = msg->startx;
  59     else
  60       result = FALSE;
  61   }
  62   else
  63     result = FALSE;
  64
  65   // now we check&set the stop variables to their corresponding values
  66   if(msg->stopy == MUIV_TextEditor_SetBlock_Min)
  67     newblock.stopline = LineNode(data, 1);
  68   else  if(msg->stopy == MUIV_TextEditor_SetBlock_Max)
  69     newblock.stopline = LineNode(data, data->totallines+1);
  70   else if(msg->stopy >= 0 && msg->stopy <= data->totallines)
  71     newblock.stopline = LineNode(data, msg->stopy+1);
  72   else
  73     result = FALSE;
  74
  75   if(msg->stopx == MUIV_TextEditor_SetBlock_Min)
  76     newblock.stopx = 0;
  77   else if(newblock.stopline != NULL)
  78   {
  79     if(msg->stopx == MUIV_TextEditor_SetBlock_Max)
  80       newblock.stopx = (newblock.stopline)->line.Length;
  81     else if(msg->stopx >= 0 && msg->stopx <= (newblock.stopline)->line.Length)
  82       newblock.stopx = msg->stopx;
  83     else
  84       result = FALSE;
  85   }
  86   else
  87     result = FALSE;
  88
  89   // check if valid values had been specified for our start/stop values
  90   if(result == TRUE)
  91   {
  92     // enable the block during the color/style changes
  93     newblock.enabled = TRUE;
  94
  95     if(isFlagSet(msg->operation, MUIF_TextEditor_SetBlock_Color))
  96     {
  97       AddColor(data, &newblock, (UWORD)msg->value);
  98     }
  99
 100     if(isFlagSet(msg->operation, MUIF_TextEditor_SetBlock_StyleBold))
 101     {
 102       AddStyle(data, &newblock, BOLD, msg->value != 0);
 103     }
 104
 105     if(isFlagSet(msg->operation, MUIF_TextEditor_SetBlock_StyleItalic))
 106     {
 107       AddStyle(data, &newblock, ITALIC, msg->value != 0);
 108     }
 109
 110     if(isFlagSet(msg->operation, MUIF_TextEditor_SetBlock_StyleUnderline))
 111     {
 112       AddStyle(data, &newblock, UNDERLINE, msg->value != 0);
 113     }
 114
 115     // disable the block again
 116     newblock.enabled = FALSE;
 117
 118     if(isFlagSet(msg->operation, MUIF_TextEditor_SetBlock_Flow))
 119     {
 120       LONG start, lines = 0;
 121       struct marking newblock2;
 122       struct line_node *startline;
 123
 124       data->Flow = msg->value;
 125
 126       NiceBlock(&newblock, &newblock2);
 127       startline = newblock2.startline;
 128       start = LineToVisual(data, startline);
 129
 130       do
 131       {
 132         lines += startline->visual;
 133         startline->line.Flow = msg->value;
 134         startline = GetNextLine(startline);
 135       }
 136       while(startline != GetNextLine(newblock2.stopline));
 137
 138       if(start < 1)
 139         start = 1;
 140
 141       if(start-1+lines > data->maxlines)
 142         lines = data->maxlines-(start-1);
 143
 144       DumpText(data, data->visual_y+start-1, start-1, start-1+lines, TRUE);
 145     }
 146   }
 147
 148   RETURN(result);
 149   return result;
 150 }
 151
 152 ///