1 files changed, 130 insertions, 0 deletions
diff --git a/frontends/kolibrios/kolibri_gui.h b/frontends/kolibrios/kolibri_gui.h
new file mode 100644
index 000000000..f2acc8ba0
--- /dev/null
+++ b/frontends/kolibrios/kolibri_gui.h
@@ -0,0 +1,130 @@
+#ifndef KOLIBRI_GUI_H
+#define KOLIBRI_GUI_H
+
+#include "stdlib.h" /* for malloc() */
+#include "kos32sys.h"
+#include "kolibri_debug.h" /* work with debug board */
+
+/* boxlib loader */
+#include "kolibri_boxlib.h"
+
+/* All supported GUI elements included */
+#include "kolibri_gui_elements.h"
+
+enum KOLIBRI_GUI_EVENTS {
+  KOLIBRI_EVENT_REDRAW = 1,   /* Window and window elements should be redrawn */
+  KOLIBRI_EVENT_KEY = 2,      /* A key on the keyboard was pressed */
+  KOLIBRI_EVENT_BUTTON = 3,   /* A button was clicked with the mouse */
+  KOLIBRI_EVENT_MOUSE = 6     /* Mouse activity (movement, button press) was detected */
+};
+
+void kolibri_handle_event_redraw(struct kolibri_window* some_window)
+{
+  /*  Draw windows with system color table. */
+
+  BeginDraw();
+
+  DrawWindow(some_window->topleftx, some_window->toplefty, 
+	     some_window->sizex, some_window->sizey,
+	     some_window->window_title,
+	     kolibri_color_table.color_work_area, some_window->XY);
+  
+  /* Enumerate and draw all window elements here */
+  if(some_window->elements) /* Draw all elements added to window */
+    {
+      struct kolibri_window_element* current_element = some_window -> elements; 
+      
+      do
+	{
+	  /* The redraw_fn serves as draw_fn on initial draw */
+	  if(kolibri_gui_op_table[current_element -> type].redraw_fn)
+	    kolibri_gui_op_table[current_element -> type].redraw_fn(current_element -> element);
+	  
+	  switch(current_element -> type)
+	    {
+	    case KOLIBRI_EDIT_BOX:
+	    case KOLIBRI_CHECK_BOX:
+	      __asm__ volatile("push $0x13371337"::); /* Random value pushed to balance stack */
+						      /* otherwise edit_box_draw leaves stack unbalanced */
+						      /* and GCC jumps like a crazy motha' fucka' */
+	      break;
+	    }
+
+	  current_element = current_element -> next;
+	  
+	} while(current_element != some_window->elements); /* Have we covered all elements? */
+    }
+}
+
+void kolibri_handle_event_key(struct kolibri_window* some_window)
+{
+  /* Enumerate and trigger key handling functions of window elements here */
+  if(some_window->elements) 
+    {
+      struct kolibri_window_element *current_element = some_window -> elements; 
+
+      do
+	{
+	  /* Only execute if the function pointer isn't NULL */
+	  if(kolibri_gui_op_table[current_element -> type].key_fn)
+	    kolibri_gui_op_table[current_element -> type].key_fn(current_element -> element);
+	  
+	  current_element = current_element -> next;
+	} while(current_element != some_window->elements); /* Have we covered all elements? */
+    }
+}
+
+void kolibri_handle_event_mouse(struct kolibri_window* some_window)
+{
+  /* Enumerate and trigger mouse handling functions of window elements here */
+  if(some_window->elements) 
+    {
+      struct kolibri_window_element *current_element = some_window -> elements; 
+
+      do
+	{
+	  
+	  if(kolibri_gui_op_table[current_element -> type].mouse_fn)
+	    kolibri_gui_op_table[current_element -> type].mouse_fn(current_element -> element);
+
+	  current_element = current_element -> next;
+	} while(current_element != some_window->elements); /* Have we covered all elements? */
+    }
+}
+
+void kolibri_exit(void)
+{
+  __asm__ volatile ("int $0x40"::"a"(-1));
+}
+
+int kolibri_gui_init(void)
+{
+  int boxlib_init_status = kolibri_boxlib_init();
+
+  if(boxlib_init_status == 0) 
+    debug_board_write_str("ashmew2 is happy: Kolibri GUI Successfully Initialized.\n");
+  else 
+    {
+      debug_board_write_str("ashmew2 is sad: Kolibri GUI Failed to initialize.\n");
+      kolibri_exit();
+    }
+
+  /* Initialize the global operation table which handles event functions of */
+  /* each individual element type */
+  kolibri_init_gui_op_table();
+
+  /* Get the current color table for Kolibri and store in global table*/
+  kolibri_get_system_colors(&kolibri_color_table);
+
+  /* Set up system events for buttons, mouse and keyboard and redraw */
+  /* Also set filters so that window receives mouse events only when active
+     and mouse inside window */
+  __asm__ volatile("int $0x40"::"a"(40), "b"(0xC0000027)); 
+
+  return 0;
+}
+
+/* Note: The current implementation tries to automatically colors 
+   GUI elements with system theme */
+
+#endif /* KOLIBRI_GUI_H */