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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. #include "kolibri_progressbar.h"
  9. #include "kolibri_frame.h"
  10.  
  11. /* enum KOLIBRI_GUI_ELEMENT_TYPE contains all available GUI items from box_lib */
  12. /* More elements can be added from other libraries as required */
  13. enum KOLIBRI_GUI_ELEMENT_TYPE {
  14.   KOLIBRI_EDIT_BOX,
  15.   KOLIBRI_CHECK_BOX,
  16.   KOLIBRI_RADIO_BUTTON,
  17.   KOLIBRI_SCROLL_BAR,
  18.   KOLIBRI_DYNAMIC_BUTTON,
  19.   KOLIBRI_MENU_BAR,
  20.   KOLIBRI_FILE_BROWSER,
  21.   KOLIBRI_TREE_LIST,
  22.   KOLIBRI_PATH_SHOW,
  23.   KOLIBRI_TEXT_EDITOR,
  24.   KOLIBRI_FRAME,
  25.   KOLIBRI_PROGRESS_BAR,
  26.  
  27.   KOLIBRI_BUTTON,
  28.  
  29.   /* Add elements above this element in order to let KOLIBRI_NUM_GUI_ELEMENTS */
  30.   /* stay at correct value */
  31.  
  32.   KOLIBRI_NUM_GUI_ELEMENTS
  33. };
  34.  
  35. /* Linked list which connects together all the elements drawn inside a GUI window */
  36. struct kolibri_window_element {
  37.   enum KOLIBRI_GUI_ELEMENT_TYPE type;
  38.   void *element;
  39.   struct kolibri_window_element *next, *prev;
  40. };
  41.  
  42.  
  43. typedef void (*cb_elem_boxlib)(void *) __attribute__((__stdcall__));
  44.  
  45. /* Generic structure for supporting functions on various elements of Kolibri's GUI */
  46. struct kolibri_element_operations {
  47.         cb_elem_boxlib  redraw_fn;
  48.         cb_elem_boxlib  mouse_fn;
  49.         cb_elem_boxlib  key_fn;
  50. };
  51.  
  52. /* Structure for a GUI Window on Kolibri. It also contains all the elements drawn in window */
  53. struct kolibri_window {
  54.   unsigned int topleftx, toplefty;
  55.   unsigned int sizex, sizey;
  56.   char *window_title;
  57.  
  58.   /* Refer to sysfuncs, value to be stored in EDX (Function 0) */
  59.   unsigned int XY;
  60.  
  61.   struct kolibri_window_element *elements;
  62. };
  63.  
  64. /*---------------------End of Structure and enum definitions---------------*/
  65. /*---------------------Define various functions for initializing GUI-------*/
  66.  
  67. /* Master table containing operations for various GUI elements in one place */
  68. struct kolibri_element_operations kolibri_gui_op_table[KOLIBRI_NUM_GUI_ELEMENTS];
  69.  
  70. void kolibri_init_gui_op_table(void)
  71. {
  72. /* Setting up functions for edit box GUI elements*/
  73. kolibri_gui_op_table[KOLIBRI_EDIT_BOX].redraw_fn = (cb_elem_boxlib)edit_box_draw;
  74. kolibri_gui_op_table[KOLIBRI_EDIT_BOX].mouse_fn = (cb_elem_boxlib)edit_box_mouse;
  75. kolibri_gui_op_table[KOLIBRI_EDIT_BOX].key_fn = (cb_elem_boxlib)editbox_key;
  76.  
  77. /* Setting up functions for check box GUI elements*/
  78. kolibri_gui_op_table[KOLIBRI_CHECK_BOX].redraw_fn = (cb_elem_boxlib)check_box_draw2;
  79. kolibri_gui_op_table[KOLIBRI_CHECK_BOX].mouse_fn = (cb_elem_boxlib)check_box_mouse2;
  80. kolibri_gui_op_table[KOLIBRI_CHECK_BOX].key_fn = NULL;
  81.  
  82. /* Setting up functions for Kolibri Buttons ( SysFunc 8 )*/
  83. kolibri_gui_op_table[KOLIBRI_BUTTON].redraw_fn = (cb_elem_boxlib)draw_button;
  84. kolibri_gui_op_table[KOLIBRI_BUTTON].mouse_fn = NULL;
  85. kolibri_gui_op_table[KOLIBRI_BUTTON].key_fn = NULL;
  86.  
  87. /* Setting up functions for progress bar GUI elements*/
  88. kolibri_gui_op_table[KOLIBRI_PROGRESS_BAR].redraw_fn = (cb_elem_boxlib)progressbar_draw;
  89. kolibri_gui_op_table[KOLIBRI_PROGRESS_BAR].mouse_fn = NULL;
  90. kolibri_gui_op_table[KOLIBRI_PROGRESS_BAR].key_fn = NULL;
  91.  
  92. /* Setting up functions for frame GUI elements*/
  93. kolibri_gui_op_table[KOLIBRI_FRAME].redraw_fn = (cb_elem_boxlib)frame_draw;
  94. kolibri_gui_op_table[KOLIBRI_FRAME].mouse_fn = NULL;
  95. kolibri_gui_op_table[KOLIBRI_FRAME].key_fn = NULL;
  96.  
  97. }
  98.  
  99. /* Create a new main GUI window for KolibriOS */
  100. /* tl stands for TOP LEFT. x and y are coordinates. */
  101.  
  102. struct kolibri_window * kolibri_new_window(int tlx, int tly, int sizex, int sizey, char *title)
  103. {
  104.   struct kolibri_window *new_win = (struct kolibri_window *)malloc(sizeof(struct kolibri_window));
  105.  
  106.   new_win->topleftx = tlx;
  107.   new_win->toplefty = tly;
  108.   new_win->sizex = sizex;
  109.   new_win->sizey = sizey;
  110.   new_win->window_title = title;
  111.   new_win->XY = 0x00000013; /* All windows are skinned windows with caption for now */
  112.   new_win->elements = NULL;
  113.  
  114.   return new_win;
  115. }
  116.  
  117. /* Add an element to an existing window */
  118. void kolibri_window_add_element(struct kolibri_window *some_window, enum KOLIBRI_GUI_ELEMENT_TYPE element_type, void *some_gui_element)
  119. {
  120.   struct kolibri_window_element *new_element = (struct kolibri_window_element *)malloc(sizeof(struct kolibri_window_element));
  121.  
  122.   new_element -> type = element_type;
  123.   new_element -> element = some_gui_element;
  124.  
  125.   if(!(some_window->elements)) /* No elements in window yet */
  126.     {
  127.       some_window->elements = new_element;
  128.       some_window->elements -> prev = some_window->elements;
  129.       some_window->elements -> next = some_window->elements;
  130.     }
  131.   else
  132.     {
  133.       struct kolibri_window_element *last_element = some_window -> elements -> prev;
  134.  
  135.       last_element -> next = new_element;
  136.       new_element -> next = some_window -> elements; /* start of linked list  */
  137.       some_window -> elements -> prev = new_element;
  138.       new_element -> prev = last_element;
  139.     }
  140. }
  141.  
  142. #endif /* KOLIBRI_GUI_ELEMENTS_H */
  143.