ui/inputbox.c

   1 /* $Id: inputbox.c,v 1.5 2005-01-25 21:26:44 schaffner Exp $ */
   2 /*
   3 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
   4 SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
   5 END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
   6 ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
   7 IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
   8 SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
   9 FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
  10 CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS
  11 AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
  12 COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
  13 */
  14
  15 #ifdef RCS
  16 static char rcsid[] = "$Id: inputbox.c,v 1.5 2005-01-25 21:26:44 schaffner Exp $";
  17 #endif
  18
  19 #ifdef HAVE_CONFIG_H
  20 #include "conf.h"
  21 #endif
  22
  23 #include <stdlib.h>
  24 #include <string.h>
  25
  26 #include "u_mem.h"
  27 #include "fix.h"
  28 #include "pstypes.h"
  29 #include "gr.h"
  30 #include "ui.h"
  31 #include "key.h"
  32
  33 // insert character c into string s at position p.
  34 void strcins(char *s, int p, char c)
  35 {
  36         int n;
  37         for (n=strlen(s)-p; n>=0; n-- )
  38                 *(s+p+n+1) = *(s+p+n);   // Move everything over
  39         *(s+p) = c;         // then insert the character
  40 }
  41
  42 // delete n character from string s starting at position p
  43
  44 void strndel(char *s, int p, int n)
  45 {
  46         for (; (*(s+p) = *(s+p+n)) != '\0'; s++ )
  47                 *(s+p+n) = '\0';    // Delete and zero fill
  48 }
  49
  50 void ui_draw_inputbox( UI_GADGET_INPUTBOX * inputbox )
  51 {
  52         int w, h, aw;
  53
  54         if ((inputbox->status==1) || (inputbox->position != inputbox->oldposition))
  55         {
  56                 ui_mouse_hide();
  57                 gr_set_current_canvas( inputbox->canvas );
  58
  59                 if (CurWindow->keyboard_focus_gadget == (UI_GADGET *)inputbox)
  60                 {
  61                         if (inputbox->first_time)
  62                                 gr_set_fontcolor( CBLACK, CRED );
  63                         else
  64                                 gr_set_fontcolor( CRED, CBLACK );
  65                 }
  66                 else
  67                         gr_set_fontcolor( CWHITE, CBLACK );
  68
  69                 inputbox->status = 0;
  70
  71                 gr_string( 2, 2, inputbox->text );
  72                 gr_get_string_size(inputbox->text, &w, &h, &aw  );
  73
  74                 gr_setcolor( CBLACK );
  75                 gr_rect( 2+w, 0, inputbox->width-1, inputbox->height-1 );
  76
  77                 if (CurWindow->keyboard_focus_gadget == (UI_GADGET *)inputbox  && !inputbox->first_time )
  78                 {
  79                         gr_setcolor(CRED);
  80                         Vline( 2,inputbox->height-3, 2+w+1 );
  81                         Vline( 2,inputbox->height-3, 2+w+2 );
  82                 }
  83
  84                 ui_mouse_show();
  85         }
  86 }
  87
  88 UI_GADGET_INPUTBOX * ui_add_gadget_inputbox( UI_WINDOW * wnd, short x, short y, short length, short slength, char * text )
  89 {
  90         int h, w, aw, f;
  91         UI_GADGET_INPUTBOX * inputbox;
  92
  93         gr_get_string_size( NULL, &w, &h, &aw );
  94
  95         inputbox = (UI_GADGET_INPUTBOX *)ui_gadget_add( wnd, 6, x, y, x+aw*slength-1, y+h-1+4 );
  96
  97         f = 0;
  98
  99         inputbox->text = malloc( length + 1);
 100         strncpy( inputbox->text, text, length );
 101         inputbox->position = strlen(inputbox->text);
 102         inputbox->oldposition = inputbox->position;
 103         inputbox->width = aw*slength;
 104         inputbox->height = h+4;
 105         inputbox->length = length;
 106         inputbox->slength = slength;
 107         inputbox->pressed = 0;
 108         inputbox->first_time = 1;
 109
 110         gr_set_current_canvas( inputbox->canvas );
 111         gr_setcolor( CBLACK );
 112         gr_rect( 0, 0, inputbox->width-1, inputbox->height-1 );
 113
 114         return inputbox;
 115
 116 }
 117
 118
 119 void ui_inputbox_do( UI_GADGET_INPUTBOX * inputbox, int keypress )
 120 {
 121         unsigned char ascii;
 122         inputbox->oldposition = inputbox->position;
 123
 124         inputbox->pressed=0;
 125
 126         if (CurWindow->keyboard_focus_gadget==(UI_GADGET *)inputbox)
 127         {
 128                 switch( keypress )
 129                 {
 130                 case 0:
 131                         break;
 132                 case (KEY_LEFT):
 133                 case (KEY_BACKSP):
 134                         if (inputbox->position > 0)
 135                                 inputbox->position--;
 136                         inputbox->text[inputbox->position] = 0;
 137                         inputbox->status = 1;
 138                         if (inputbox->first_time) inputbox->first_time = 0;
 139                         break;
 140                 case (KEY_ENTER):
 141                         inputbox->pressed=1;
 142                         inputbox->status = 1;
 143                         if (inputbox->first_time) inputbox->first_time = 0;
 144                         break;
 145                 default:
 146                         ascii = key_to_ascii(keypress);
 147                         if ((ascii < 255 ) && (inputbox->position < inputbox->length-2))
 148                         {
 149                                 if (inputbox->first_time) {
 150                                         inputbox->first_time = 0;
 151                                         inputbox->position = 0;
 152                                 }
 153                                 inputbox->text[inputbox->position++] = ascii;
 154                                 inputbox->text[inputbox->position] = 0;
 155                         }
 156                         inputbox->status = 1;
 157                         break;
 158                 }
 159         } else {
 160                 inputbox->first_time = 1;
 161         }
 162
 163         last_keypress=0;
 164
 165         ui_draw_inputbox( inputbox );
 166
 167 }