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  1. /*
  2.  * Portions of this file are copyright Rebirth contributors and licensed as
  3.  * described in COPYING.txt.
  4.  * Portions of this file are copyright Parallax Software and licensed
  5.  * according to the Parallax license below.
  6.  * See COPYING.txt for license details.
  7.  
  8. THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
  9. SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
  10. END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
  11. ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
  12. IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
  13. SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
  14. FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
  15. CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS
  16. AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
  17. COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
  18. */
  19.  
  20.  
  21. #include <stdlib.h>
  22. #include <string.h>
  23.  
  24. #include "u_mem.h"
  25. #include "maths.h"
  26. #include "pstypes.h"
  27. #include "event.h"
  28. #include "gr.h"
  29. #include "ui.h"
  30. #include "mouse.h"
  31. #include "key.h"
  32.  
  33. namespace dcx {
  34.  
  35. #define Middle(x) ((2*(x)+1)/4)
  36.  
  37. void ui_draw_checkbox( UI_DIALOG *dlg, UI_GADGET_CHECKBOX * checkbox )
  38. {
  39. #if 0  //ndef OGL
  40.         if ((checkbox->status==1) || (checkbox->position != checkbox->oldposition))
  41. #endif
  42.         {
  43.                 checkbox->status = 0;
  44.  
  45.                 gr_set_current_canvas( checkbox->canvas );
  46.                 auto &canvas = *grd_curcanv;
  47.                 gr_set_fontcolor(canvas, dlg->keyboard_focus_gadget == checkbox
  48.                         ? CRED
  49.                         : CBLACK, -1);
  50.  
  51.                 unsigned offset;
  52.                 if (checkbox->position == 0 )
  53.                 {
  54.                         ui_draw_box_out(canvas, 0, 0, checkbox->width-1, checkbox->height-1);
  55.                         offset = 0;
  56.                 } else {
  57.                         ui_draw_box_in(canvas, 0, 0, checkbox->width-1, checkbox->height-1);
  58.                         offset = 1;
  59.                 }
  60.                 ui_string_centered(canvas, Middle(checkbox->width) + offset, Middle(checkbox->height) + offset, checkbox->flag ? "X" : " ");
  61.                 gr_ustring(canvas, *canvas.cv_font, checkbox->width + 4, 2, checkbox->text.get());
  62.         }
  63. }
  64.  
  65.  
  66. std::unique_ptr<UI_GADGET_CHECKBOX> ui_add_gadget_checkbox(UI_DIALOG * dlg, short x, short y, short w, short h, short group, const char * text)
  67. {
  68.         std::unique_ptr<UI_GADGET_CHECKBOX> checkbox{ui_gadget_add<UI_GADGET_CHECKBOX>(dlg, x, y, x+w-1, y+h-1)};
  69.         auto ltext = strlen(text) + 1;
  70.         MALLOC(checkbox->text, char[], ltext + 4);
  71.         memcpy(checkbox->text.get(), text, ltext);
  72.         checkbox->width = w;
  73.         checkbox->height = h;
  74.         checkbox->position = 0;
  75.         checkbox->oldposition = 0;
  76.         checkbox->pressed = 0;
  77.         checkbox->flag = 0;
  78.         checkbox->group = group;
  79.         return checkbox;
  80. }
  81.  
  82. window_event_result ui_checkbox_do( UI_DIALOG *dlg, UI_GADGET_CHECKBOX * checkbox,const d_event &event )
  83. {
  84.         checkbox->oldposition = checkbox->position;
  85.         checkbox->pressed = 0;
  86.  
  87.         if (event.type == EVENT_MOUSE_BUTTON_DOWN || event.type == EVENT_MOUSE_BUTTON_UP)
  88.         {
  89.                 int OnMe;
  90.                
  91.                 OnMe = ui_mouse_on_gadget( checkbox );
  92.                
  93.                 if (B1_JUST_PRESSED && OnMe)
  94.                 {
  95.                         checkbox->position = 1;
  96.                         return window_event_result::handled;
  97.                 }
  98.                 else if (B1_JUST_RELEASED)
  99.                 {
  100.                         if ((checkbox->position==1) && OnMe)
  101.                                 checkbox->pressed = 1;
  102.  
  103.                         checkbox->position = 0;
  104.                 }
  105.         }
  106.  
  107.  
  108.         if (event.type == EVENT_KEY_COMMAND)
  109.         {
  110.                 int key;
  111.                
  112.                 key = event_key_get(event);
  113.                
  114.                 if ((dlg->keyboard_focus_gadget==checkbox) && ((key==KEY_SPACEBAR) || (key==KEY_ENTER)) )
  115.                 {
  116.                         checkbox->position = 2;
  117.                         return window_event_result::handled;
  118.                 }
  119.         }
  120.         else if (event.type == EVENT_KEY_RELEASE)
  121.         {
  122.                 int key;
  123.                
  124.                 key = event_key_get(event);
  125.                
  126.                 checkbox->position = 0;
  127.                
  128.                 if ((dlg->keyboard_focus_gadget==checkbox) && ((key==KEY_SPACEBAR) || (key==KEY_ENTER)) )
  129.                         checkbox->pressed = 1;
  130.         }
  131.                
  132.         if (checkbox->pressed == 1)
  133.         {
  134.                 checkbox->flag ^= 1;
  135.                 auto rval = ui_gadget_send_event(dlg, EVENT_UI_GADGET_PRESSED, checkbox);
  136.                 if (rval == window_event_result::ignored)
  137.                         rval = window_event_result::handled;
  138.                 return rval;
  139.         }
  140.  
  141.         if (event.type == EVENT_WINDOW_DRAW)
  142.                 ui_draw_checkbox( dlg, checkbox );
  143.  
  144.         return window_event_result::ignored;
  145. }
  146.  
  147. void ui_checkbox_check(UI_GADGET_CHECKBOX * checkbox, int check)
  148. {
  149.         check = check != 0;
  150.         if (checkbox->flag == check)
  151.                 return;
  152.        
  153.         checkbox->flag = check;
  154.         checkbox->status = 1;   // redraw
  155. }
  156.  
  157. }
  158.