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  1. #ifndef KOLIBRI_GUI_ELEMENTS_H
  2. #define KOLIBRI_GUI_ELEMENTS_H
  3.  
  4. /* GUI Elements being used */
  5. #include "kolibri_editbox.h"
  6. #include "kolibri_checkbox.h"
  7. #include "kolibri_button.h"
  8.  
  9. /* enum KOLIBRI_GUI_ELEMENT_TYPE contains all available GUI items from box_lib */
  10. /* More elements can be added from other libraries as required */
  11. enum KOLIBRI_GUI_ELEMENT_TYPE {
  12.   KOLIBRI_EDIT_BOX,
  13.   KOLIBRI_CHECK_BOX,
  14.   KOLIBRI_RADIO_BUTTON,
  15.   KOLIBRI_SCROLL_BAR,
  16.   KOLIBRI_DYNAMIC_BUTTON,
  17.   KOLIBRI_MENU_BAR,
  18.   KOLIBRI_FILE_BROWSER,
  19.   KOLIBRI_TREE_LIST,
  20.   KOLIBRI_PATH_SHOW,
  21.   KOLIBRI_TEXT_EDITOR,
  22.   KOLIBRI_FRAME,
  23.   KOLIBRI_PROGRESS_BAR,
  24.  
  25.   KOLIBRI_BUTTON,
  26.  
  27.   /* Add elements above this element in order to let KOLIBRI_NUM_GUI_ELEMENTS */
  28.   /* stay at correct value */
  29.  
  30.   KOLIBRI_NUM_GUI_ELEMENTS
  31. };
  32.  
  33. /* Linked list which connects together all the elements drawn inside a GUI window */
  34. struct kolibri_window_element {
  35.   enum KOLIBRI_GUI_ELEMENT_TYPE type;
  36.   void *element;
  37.   struct kolibri_window_element *next, *prev;
  38. };
  39.  
  40.  
  41. typedef void (*cb_elem_boxlib)(void *) __attribute__((__stdcall__));
  42.  
  43. /* Generic structure for supporting functions on various elements of Kolibri's GUI */
  44. struct kolibri_element_operations {
  45.         cb_elem_boxlib  redraw_fn;
  46.         cb_elem_boxlib  mouse_fn;
  47.         cb_elem_boxlib  key_fn;
  48. };
  49.  
  50. /* Structure for a GUI Window on Kolibri. It also contains all the elements drawn in window */
  51. struct kolibri_window {
  52.   unsigned int topleftx, toplefty;
  53.   unsigned int sizex, sizey;
  54.   char *window_title;
  55.  
  56.   /* Refer to sysfuncs, value to be stored in EDX (Function 0) */
  57.   unsigned int XY;
  58.  
  59.   struct kolibri_window_element *elements;
  60. };
  61.  
  62. /*---------------------End of Structure and enum definitions---------------*/
  63. /*---------------------Define various functions for initializing GUI-------*/
  64.  
  65. /* Master table containing operations for various GUI elements in one place */
  66. struct kolibri_element_operations kolibri_gui_op_table[KOLIBRI_NUM_GUI_ELEMENTS];
  67.  
  68. void kolibri_init_gui_op_table(void)
  69. {
  70. /* Setting up functions for edit box GUI elements*/
  71. kolibri_gui_op_table[KOLIBRI_EDIT_BOX].redraw_fn = (cb_elem_boxlib)edit_box_draw;
  72. kolibri_gui_op_table[KOLIBRI_EDIT_BOX].mouse_fn = (cb_elem_boxlib)edit_box_mouse;
  73. kolibri_gui_op_table[KOLIBRI_EDIT_BOX].key_fn = (cb_elem_boxlib)editbox_key;
  74.  
  75. /* Setting up functions for check box GUI elements*/
  76. kolibri_gui_op_table[KOLIBRI_CHECK_BOX].redraw_fn = (cb_elem_boxlib)check_box_draw2;
  77. kolibri_gui_op_table[KOLIBRI_CHECK_BOX].mouse_fn = (cb_elem_boxlib)check_box_mouse2;
  78. kolibri_gui_op_table[KOLIBRI_CHECK_BOX].key_fn = NULL;
  79.  
  80. /* Setting up functions for Kolibri Buttons ( SysFunc 8 )*/
  81. kolibri_gui_op_table[KOLIBRI_BUTTON].redraw_fn = (cb_elem_boxlib)draw_button;
  82. kolibri_gui_op_table[KOLIBRI_BUTTON].mouse_fn = NULL;
  83. kolibri_gui_op_table[KOLIBRI_BUTTON].key_fn = NULL;
  84.  
  85. }
  86.  
  87. /* Create a new main GUI window for KolibriOS */
  88. /* tl stands for TOP LEFT. x and y are coordinates. */
  89.  
  90. struct kolibri_window * kolibri_new_window(int tlx, int tly, int sizex, int sizey, char *title)
  91. {
  92.   struct kolibri_window *new_win = (struct kolibri_window *)malloc(sizeof(struct kolibri_window));
  93.  
  94.   new_win->topleftx = tlx;
  95.   new_win->toplefty = tly;
  96.   new_win->sizex = sizex;
  97.   new_win->sizey = sizey;
  98.   new_win->window_title = title;
  99.   new_win->XY = 0x00000013; /* All windows are skinned windows with caption for now */
  100.   new_win->elements = NULL;
  101.  
  102.   return new_win;
  103. }
  104.  
  105. /* Add an element to an existing window */
  106. void kolibri_window_add_element(struct kolibri_window *some_window, enum KOLIBRI_GUI_ELEMENT_TYPE element_type, void *some_gui_element)
  107. {
  108.   struct kolibri_window_element *new_element = (struct kolibri_window_element *)malloc(sizeof(struct kolibri_window_element));
  109.  
  110.   new_element -> type = element_type;
  111.   new_element -> element = some_gui_element;
  112.  
  113.   if(!(some_window->elements)) /* No elements in window yet */
  114.     {
  115.       some_window->elements = new_element;
  116.       some_window->elements -> prev = some_window->elements;
  117.       some_window->elements -> next = some_window->elements;
  118.     }
  119.   else
  120.     {
  121.       struct kolibri_window_element *last_element = some_window -> elements -> prev;
  122.  
  123.       last_element -> next = new_element;
  124.       new_element -> next = some_window -> elements; /* start of linked list  */
  125.       some_window -> elements -> prev = new_element;
  126.       new_element -> prev = last_element;
  127.     }
  128. }
  129.  
  130. #endif /* KOLIBRI_GUI_ELEMENTS_H */
  131.