apps/wm/button.c

   1 /*
   2  *  ZeX/OS
   3  *  Copyright (C) 2007  Tomas 'ZeXx86' Jedrzejek (zexx86@zexos.org)
   4  *
   5  *  This program is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19
  20 #include <stdio.h>
  21 #include <string.h>
  22 #include <stdlib.h>
  23 #include <unistd.h>
  24 #include <libx/base.h>
  25 #include <libx/object.h>
  26 #include <libx/cursor.h>
  27 #include <libx/text.h>
  28 #include "button.h"
  29 #include "cursor.h"
  30
  31 wmbutton wmbutton_list;
  32
  33 extern wmcursor *cursor;
  34
  35 wmbutton *button_create (unsigned x, unsigned y, unsigned size_x, unsigned size_y, unsigned char flags, const char *caption)
  36 {
  37         wmbutton *button = (wmbutton *) malloc (sizeof (wmbutton));
  38
  39         if (!button)
  40                 return 0;
  41
  42         button->x = x;
  43         button->y = y;
  44         button->flags = flags;
  45
  46         unsigned l = strlen (caption);
  47         if (l) {
  48                 button->caption = (char *) malloc (sizeof (char) * l + 1);
  49                 memcpy (button->caption, caption, l);
  50                 button->caption[l] = '\0';
  51         } else
  52                 button->caption = 0;
  53
  54         if (size_x < (l*6+4))
  55                 button->size_x = l*6+4;
  56         else
  57                 button->size_x = size_x;
  58
  59         if (size_y < 12)
  60                 button->size_y = 12;
  61         else
  62                 button->size_y = size_y;
  63
  64         /* add into list */
  65         button->next = &wmbutton_list;
  66         button->prev = wmbutton_list.prev;
  67         button->prev->next = button;
  68         button->next->prev = button;
  69
  70         return button;
  71 }
  72
  73 unsigned button_sethandler (wmbutton *button, wmbutton_handler *handler)
  74 {
  75         if (!button)
  76                 return 0;
  77
  78         if (!handler)
  79                 button->handler = 0;
  80         else {
  81                 button->handler = handler;
  82                 return 1;
  83         }
  84
  85         return 0;
  86 }
  87
  88 unsigned char button_flags (wmbutton *button)
  89 {
  90         if (!button)
  91                 return 0;
  92
  93         return button->flags;
  94 }
  95
  96 unsigned button_draw (wmbutton *button)
  97 {
  98         if (button->flags & BUTTON_FLAG_CLICKED) {
  99                 xrect (button->x, button->y, button->x+button->size_x, button->y+button->size_y, 35*256);
 100                 xrect (button->x+1, button->y+1, button->x+button->size_x-1, button->y+button->size_y-1, 0*256);
 101                 xrectfill (button->x+2, button->y+2, button->x+button->size_x-2, button->y+button->size_y-2, 0x0084FF);
 102
 103                 if (button->caption)
 104                         xtext_puts (button->x+3, button->y+3, 1*256, button->caption);
 105
 106                 /* FIXME: general protection fault ! Something with pointer, fault is on OS side, 'cause syntax is correctly, and works on other systems .. */
 107                 /*if (button->handler)
 108                         button->handler ();*/   // call handler
 109         } else {
 110                 xrect (button->x, button->y, button->x+button->size_x, button->y+button->size_y, 35*256);
 111                 xrect (button->x+1, button->y+1, button->x+button->size_x-1, button->y+button->size_y-1, 3*256);
 112                 xrectfill (button->x+2, button->y+2, button->x+button->size_x-2, button->y+button->size_y-2, 0x0075E2);
 113
 114                 if (button->caption)
 115                         xtext_puts (button->x+2, button->y+2, 0, button->caption);
 116         }
 117
 118         return 1;
 119 }
 120
 121 unsigned button_draw_all ()
 122 {
 123         wmbutton *button;
 124         for (button = wmbutton_list.next; button != &wmbutton_list; button = button->next) {
 125                 if (!button)
 126                         continue;
 127
 128                 if (cursor->action)
 129                 if (cursor->state != XCURSOR_STATE_LBUTTON) {
 130                         if (button->flags & BUTTON_FLAG_CLICKED) {
 131                                 button->flags &= ~BUTTON_FLAG_CLICKED;
 132                                 cursor->action = 0;
 133                         }
 134                 }
 135
 136                 /* mame mys na tlacitku ? */
 137                 if (cursor->x > (signed) button->x && cursor->x < (signed) button->x+(signed) button->size_x &&
 138                         cursor->y > (signed) button->y && cursor->y <= (signed) button->y+(signed) button->size_y) {
 139
 140                         if (!cursor->action)
 141                         if (cursor->state == XCURSOR_STATE_LBUTTON) {
 142                                 if (!(button->flags & BUTTON_FLAG_CLICKED)) {
 143                                         button->flags |= BUTTON_FLAG_CLICKED;
 144                                         cursor->action = 1;
 145                                 }
 146                         }
 147                 }
 148
 149                 button_draw (button);
 150         }
 151
 152         return 1;
 153 }
 154
 155 unsigned init_button ()
 156 {
 157         wmbutton_list.next = &wmbutton_list;
 158         wmbutton_list.prev = &wmbutton_list;
 159
 160         return 1;
 161 }