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Tina5/tina-tools/tinatool/wdgts/gtk/wdgtsGtk_tw_iglobal.c

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  1 /**********
  2  * 
  3  * Copyright (c) 2003, Division of Imaging Science and Biomedical Engineering,
  4  * University of Manchester, UK.  All rights reserved.
  5  * 
  6  * Redistribution and use in source and binary forms, with or without modification, 
  7  * are permitted provided that the following conditions are met:
  8  * 
  9  *   . Redistributions of source code must retain the above copyright notice, 
 10  *     this list of conditions and the following disclaimer.
 11  *    
 12  *   . Redistributions in binary form must reproduce the above copyright notice,
 13  *     this list of conditions and the following disclaimer in the documentation 
 14  *     and/or other materials provided with the distribution.
 15  * 
 16  *   . Neither the name of the University of Manchester nor the names of its
 17  *     contributors may be used to endorse or promote products derived from this 
 18  *     software without specific prior written permission.
 19  * 
 20  * 
 21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
 25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
 27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 31  * POSSIBILITY OF SUCH DAMAGE.
 32  *
 33  **********
 34  * 
 35  * Program :  TINA
 36  * File    :  $Source: /home/tina/cvs/tina-tools/tinatool/wdgts/gtk/wdgtsGtk_tw_iglobal.c,v $
 37  * Date    :  $Date: 2007/02/15 01:55:50 $
 38  * Version :  $Revision: 1.3 $
 39  * CVS Id  :  $Id: wdgtsGtk_tw_iglobal.c,v 1.3 2007/02/15 01:55:50 paul Exp $
 40  *
 41  * Author  :  a.lacey@man.ac.uk, giob@man.ac.uk
 42  *
 43  *********
 44 */
 45 /** 
 46  *  @file  wdgtsGtk_tw_iglobal.c
 47  *  @brief Define and create GTK integer entry field and its associated callbacks.
 48  *
 49  *  Functions to create a GTK integer entry field and to define its use by linking it into the TINA 
 50  *  the TINA callback system using a Tw_callback struct.  Also defines the callback functions
 51  *  invoked when the buttons are used.  Note that an integer entry field in GTK is just a text
 52  *  entry field, but TINA handles it differently.
 53  *
 54  *  Note that the functions in this file are duplicated for each widget set (xv, GTK, xm, etc ...).
 55  *
 56  */
 57 
 58 #include "wdgtsGtk_tw_iglobal.h"
 59 
 60 #if HAVE_CONFIG_H
 61 #   include <config.h>
 62 #endif
 63 
 64 #include <stdio.h>
 65 #include <gtk/gtk.h>
 66 #include <tinatool/wdgts/gtk/wdgts_GtkDef.h>
 67 #include <tinatool/wdgts/gtk/wdgtsGtk_tw_command.h>
 68 #include <tinatool/wdgts/gtk/wdgtsGtk_tw_tool.h>
 69 
 70 /**
 71  * @brief Copy integer from entry widget to stored callback data field.  
 72  * @param twc  Pointer to Tw_callback associated with this integer entry widget.
 73  * 
 74  * Callback function for integer entry widgets.  Each of these has an associated 
 75  * Tw_callback, and this function copies the current widget integer into the data  
 76  * field of the Tw_callback.
 77  *
 78  * Note that this callback is not invoked directly by the widget, but via a call
 79  * to tw_text_callback (in wdgtsGtk_tw_command.c).
 80  *
 81  */
 82 static void iglobal_call(Tw_callback * twc)
 83 {
 84   int    x; 
 85   int   *ptr = (int *) twc->data1;
 86   char  *string = (char *) gtk_entry_get_text(GTK_ENTRY(twc->widget));
 87 
 88   if (sscanf(string, "%d", &x) == 1)
 89     *ptr = x;
 90 }
 91 
 92 /**
 93  * @brief   Replay integer entry from current macro file.  
 94  * @param   twc   Pointer to Tw_callback associated with this widget.
 95  * @param   args  Pointer to required data, stored in the macro file.
 96  * 
 97  */
 98 static void iglobal_cmnd(Tw_callback * twc, char *args)
 99 {
100   int    *ptr = (int *) twc->data1;
101   char    string[64];
102 
103   (void) sscanf(args, "%*s %d", ptr);
104   (void) sscanf(args, "%*s %s", string);
105   gtk_entry_set_text(GTK_ENTRY(twc->widget), string);
106 }
107 
108 /**
109  * @brief  Record integer entry in current macro file.  
110  * @param  fp   Pointer to current macro file.
111  * @param  twc  Pointer to Tw_callback associated with this widget.
112  *
113  */
114 static void iglobal_prnt(FILE * fp, Tw_callback * twc)
115 {
116   int     x = *(int *) twc->data1;
117 
118   (void) fprintf(fp, "%s %d\n", twc->name, x);
119 }
120 
121 
122 /**
123  * @brief  Create new integer entry field and its associated callback struct.  
124  * @param  name    String to be used as entry field identifier and label.
125  * @param  ptr     Pointer to storage for integer entered in the field.
126  * @param  nchars  Maximum number of characters for input field.
127  * @return Tw_callback  Pointer to new Tw_callback associated with this entry field.
128  * 
129  * Creates new hbox for integer entry field, and packs field and label in it.  
130  *
131  * Invokes callback for each keypress, via call to tw_text_callback 
132  * (in wdgtsGtk_tw_command.c).
133  *
134  */
135 Tw_callback *tw_iglobal(char *name, int *ptr, int nchars)
136 {
137   GtkWidget *panel= tw_get_panel();
138   GtkWidget *box;
139   GtkWidget *itxlabel;
140   GtkWidget *itxentry;
141 
142   char  string[32];
143   int   value;
144 
145   Tw_callback  *twc;
146   char         *fullname = tw_extend_fullname(tw_get_toolname(), name);
147 
148   box = gtk_hbox_new(FALSE, 8);
149   gtk_container_add(GTK_CONTAINER(panel), box);
150   gtk_widget_show(box); 
151         
152   itxlabel = gtk_label_new(name);
153   itxentry = gtk_entry_new();
154   gtk_widget_set_usize(itxentry, (10+6*nchars), 22);
155   gtk_box_pack_start(GTK_BOX(box), itxlabel, FALSE, FALSE, 0);
156   gtk_box_pack_start(GTK_BOX(box), itxentry, FALSE, FALSE, 0);
157   gtk_widget_show(itxlabel);
158   gtk_widget_show(itxentry);
159   
160   value = *ptr;
161   (void) sprintf(string, "%d", value);
162   gtk_entry_set_text(GTK_ENTRY(itxentry), string);
163 
164   twc = tw_callback_make(fullname, itxentry,
165                          iglobal_call, iglobal_cmnd, iglobal_prnt, (void (*) ()) NULL,
166                          (void *) ptr, NULL);
167 
168   /*  Invoke callback for GTK entry "changed" event (i.e. for each keypress) */
169   gtk_signal_connect(GTK_OBJECT(itxentry), "changed",
170                      GTK_SIGNAL_FUNC(tw_gtk_callback),
171                      (gpointer) twc);
172   
173   return (twc);
174 }
175 
176 /**
177  * @brief Reset integer entry field when value has been altered in the program.  
178  * @param twc    Pointer to Tw_callback associated with this text entry widget.
179  * 
180  * NOTE: NOT TESTED YET - GAB 10 Oct 2003.
181  *
182  */
183 void tw_iglobal_reset(Tw_callback * twc)
184 {
185   int    *val;
186   char    string[64];
187 
188   if (twc == NULL)
189     return;
190 
191   val = (int *) twc->data1;
192   (void) sprintf(string, "%d", *val);
193   gtk_entry_set_text(GTK_ENTRY(twc->widget), string);
194 }
195 
196 

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