cde/examples/dtprint/AppSpecific.c

   1 /*
   2  * CDE - Common Desktop Environment
   3  *
   4  * Copyright (c) 1993-2012, The Open Group. All rights reserved.
   5  *
   6  * These libraries and programs are free software; you can
   7  * redistribute them and/or modify them under the terms of the GNU
   8  * Lesser General Public License as published by the Free Software
   9  * Foundation; either version 2 of the License, or (at your option)
  10  * any later version.
  11  *
  12  * These libraries and programs are distributed in the hope that
  13  * they will be useful, but WITHOUT ANY WARRANTY; without even the
  14  * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  15  * PURPOSE. See the GNU Lesser General Public License for more
  16  * details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with these librararies and programs; if not, write
  20  * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
  21  * Floor, Boston, MA 02110-1301 USA
  22  */
  23 /* $XConsortium: AppSpecific.c /main/4 1996/05/09 03:39:11 drk $ */
  24 #include "PrintDemo.h"
  25
  26 /*
  27  * ------------------------------------------------------------------------
  28  * Name: AppObject_new
  29  *
  30  * Description:
  31  *
  32  *     Allocates a new AppObject data structure. If parent is non-NULL,
  33  *     an application-specific main window work region is created.
  34  *
  35  * Return value:
  36  *
  37  *     A pointer to the new AppObject structure.
  38  *
  39  */
  40 #define LABEL_FMTSTR "Filename: %s   Size: %d"
  41
  42 static char *
  43 ReadFile(char * filename, int * filesize)
  44 {
  45    char *buffer = NULL;
  46    FILE * file;
  47    *filesize = 0 ;
  48
  49    if ((file = fopen(filename, "r")) == NULL) return NULL ;
  50
  51    fseek(file, 0L, SEEK_END);
  52    *filesize = ftell(file);
  53
  54    rewind(file);
  55    buffer = (char *) malloc(*filesize+1);
  56    if (fread(buffer, 1, *filesize, file) == *filesize ) {
  57       buffer[*filesize] = '\0';
  58       return buffer;
  59    }
  60
  61    free(buffer);
  62    return NULL;
  63 }
  64
  65 AppObject*
  66 AppObject_new(
  67               Widget parent,
  68               String file_name)
  69 {
  70     AppObject* me = (AppObject*)XtCalloc(1, sizeof(AppObject));
  71     int filesize ;
  72
  73     me->main_window = parent ;
  74
  75     if(file_name != (String)NULL)
  76         me->file_name = XtNewString(file_name);
  77     else
  78         me->file_name = XtNewString("README.txt");
  79
  80     me->file_buffer = ReadFile(me->file_name, &filesize);
  81     if (me->file_buffer == NULL)  {
  82         me->file_buffer = XtNewString("abcdefghijklmnopqrstuvwxyz");
  83         filesize = strlen("abcdefghijklmnopqrstuvwxyz");
  84     }
  85
  86     if(parent != (Widget)NULL)
  87     {
  88         XmString label;
  89         String buf;
  90
  91         buf = XtCalloc(strlen(LABEL_FMTSTR)+strlen(me->file_name)+10,
  92                        sizeof(char));
  93         sprintf(buf, LABEL_FMTSTR, me->file_name, filesize);
  94         label = XmStringCreateLocalized(buf);
  95         XtFree(buf);
  96         me->widget =
  97             XtVaCreateManagedWidget("AppWorkArea",
  98                                     xmLabelWidgetClass,
  99                                     parent,
 100                                     XmNlabelString, label,
 101                                     NULL);
 102         XmStringFree(label);
 103     }
 104
 105     return me;
 106 }
 107
 108 /*
 109  * ------------------------------------------------------------------------
 110  * Name: AppObject_customizePrintSetupBox
 111  *
 112  * Description:
 113  *
 114  *     Adds application specific items to the passed print setup box.
 115  *
 116  *     The document file name is presented in the top work area.
 117  *
 118  * Return value:
 119  *
 120  *     None.
 121  *
 122  */
 123 void
 124 AppObject_customizePrintSetupBox(
 125                                  AppObject* me,
 126                                  Widget print_dialog)
 127 {
 128     Widget row;
 129     XmString label;
 130     Widget w;
 131     /*
 132      * create the app-specific top work area
 133      */
 134     XtVaSetValues(print_dialog,
 135                   DtNworkAreaLocation, DtWORK_AREA_TOP,
 136                   NULL);
 137     row = XtVaCreateManagedWidget(
 138                                   "DocumentNameRow",
 139                                   xmRowColumnWidgetClass,
 140                                   print_dialog,
 141                                   XmNorientation, XmHORIZONTAL,
 142                                   NULL);
 143     /*
 144      * create the document name label
 145      */
 146     label = XmStringCreateLocalized("Document:");
 147     w = XtVaCreateManagedWidget("DocumentNameLabel",
 148                          xmLabelGadgetClass,
 149                          row,
 150                          XmNlabelString, label,
 151                          NULL);
 152     XmStringFree(label);
 153     /*
 154      * create the document name
 155      */
 156     label = XmStringCreateLocalized(me->file_name);
 157     w = XtVaCreateManagedWidget("DocumentName",
 158                          xmLabelGadgetClass,
 159                          row,
 160                          XmNlabelString, label,
 161                          NULL);
 162     XmStringFree(label);
 163 }