protocol.h

#ifndef __NTW_H
#define __NTW_H

#include <stdint.h>

#define BUFSIZE 5
#define PORT 12345

#define SYNC 1
#define ASYNC 2

#define uint8 uint8_t
#define uint16 uint16_t
#define uint32 uint32_t
#define int8 int8_t
#define int16 int16_t
#define int32 int32_t

struct event_mask {
  int32 sync_general;
  int32 async_general;
  int32 sync_specific;
  int32 async_specific;
};

#ifndef TRUE
#define TRUE 1
#endif

#ifndef FALSE 
#define FALSE 0
#endif


#define OP_INFO    'I'
#define OP_DESTROY 'D'
#define OP_SET     'S'
#define OP_GET     'G'
#define OP_EVENT   'E'
#define OP_EOT     'X'
#define OP_ERROR   'Z'


#define ERROR_NO_PROPERTY  11

/* high bit is container flag */
/* next bit is viewable widget flag */
/* next bit is toplevel flag */
#define NTW_CONTAINER_TYPE        0x80000000
#define NTW_WIDGET_TYPE           0x40000000
#define NTW_TOPLEVEL_TYPE         0x20000000
/* Widgets that contain others */
#define TYPE_WINDOW          (NTW_WIDGET_TYPE | NTW_CONTAINER_TYPE | NTW_TOPLEVEL_TYPE | 0x01)
#define TYPE_DIALOG          (NTW_WIDGET_TYPE | NTW_CONTAINER_TYPE | NTW_TOPLEVEL_TYPE | 0x02)
#define TYPE_GRID            (NTW_WIDGET_TYPE | NTW_CONTAINER_TYPE | 0x03)
#define TYPE_BUTTON          (NTW_WIDGET_TYPE | NTW_CONTAINER_TYPE | 0x04)
#define TYPE_CHECK_BUTTON    (NTW_WIDGET_TYPE | NTW_CONTAINER_TYPE | 0x05)
#define TYPE_MENU_BAR        (NTW_WIDGET_TYPE | NTW_CONTAINER_TYPE | 0x06)
#define TYPE_MENU            (NTW_WIDGET_TYPE | NTW_CONTAINER_TYPE | 0x07)
#define TYPE_MENU_ITEM       (NTW_WIDGET_TYPE | NTW_CONTAINER_TYPE | 0x08)
#define TYPE_RADIO_BUTTON    (NTW_WIDGET_TYPE | NTW_CONTAINER_TYPE | 0x09)
#define TYPE_NOTEBOOK        (NTW_WIDGET_TYPE | NTW_CONTAINER_TYPE | 0x0a)
#define TYPE_NOTEBOOK_PAGE   (NTW_WIDGET_TYPE | NTW_CONTAINER_TYPE | 0x0b)
#define TYPE_SCROLLPANE      (NTW_WIDGET_TYPE | NTW_CONTAINER_TYPE | 0x0c)
#define TYPE_FRAME           (NTW_WIDGET_TYPE | NTW_CONTAINER_TYPE | 0x0d)
#define TYPE_SPLIT_PANE      (NTW_WIDGET_TYPE | NTW_CONTAINER_TYPE | 0x0e)
#define TYPE_TABLE           (NTW_WIDGET_TYPE | NTW_CONTAINER_TYPE | 0x0f)
#define TYPE_TOOL_BAR        (NTW_WIDGET_TYPE | NTW_CONTAINER_TYPE | 0x10)
#define TYPE_TOOL_ITEM       (NTW_WIDGET_TYPE | NTW_CONTAINER_TYPE | 0x11)
#define TYPE_TOOL_BUTTON     (NTW_WIDGET_TYPE | NTW_CONTAINER_TYPE | 0x12)
#define TYPE_TOOL_MENU_BUTTON (NTW_WIDGET_TYPE | NTW_CONTAINER_TYPE | 0x13)
/* Non-container widgets */
#define TYPE_LABEL           (NTW_WIDGET_TYPE | 0x0100)
#define TYPE_IMAGE           (NTW_WIDGET_TYPE | 0x0200)
#define TYPE_ENTRY           (NTW_WIDGET_TYPE | 0x0300)
#define TYPE_TABLE_COLUMN    (NTW_WIDGET_TYPE | 0x0400)
#define TYPE_COMBO_BOX       (NTW_WIDGET_TYPE | 0x0500)
#define TYPE_COMBO_BOX_ENTRY (NTW_WIDGET_TYPE | 0x0600)
#define TYPE_STATUS_BAR      (NTW_WIDGET_TYPE | 0x0700)
#define TYPE_SPIN_BUTTON     (NTW_WIDGET_TYPE | 0x0800)
#define TYPE_SLIDER          (NTW_WIDGET_TYPE | 0x0900)
#define TYPE_PROGRESS_BAR    (NTW_WIDGET_TYPE | 0x0a00)
#define TYPE_TEXT_EDITOR     (NTW_WIDGET_TYPE | 0x0b00)
/* These are abstract widgets that are never drawn and cannot be contained */
#define TYPE_LIST_MODEL      (NTW_TOPLEVEL_TYPE | 0x010000)
#define TYPE_LIST_MODEL_NODE (NTW_TOPLEVEL_TYPE | 0x020000)
#define TYPE_TREE_MODEL      (NTW_TOPLEVEL_TYPE | 0x030000)
#define TYPE_TREE_MODEL_NODE (NTW_TOPLEVEL_TYPE | 0x040000)
#define TYPE_RADIO_GROUP     (NTW_TOPLEVEL_TYPE | 0x050000)
#define TYPE_IMAGE_BUFFER    (NTW_TOPLEVEL_TYPE | 0x060000)
#define TYPE_CACHED_IMAGE    (NTW_TOPLEVEL_TYPE | 0x070000)
#define TYPE_TIMER           (NTW_TOPLEVEL_TYPE | 0x080000)
/* These are only used in the server when saving the state */
#define TYPE_EVENT_TABLE     (NTW_TOPLEVEL_TYPE | 0x100000)


#define DESTROY_EVENT_MASK        0x0001
#define LEAVE_ENTER_EVENT_MASK    0x0002
#define MOUSE_CLICK_EVENT_MASK    0x0004
#define MOUSE_MOVE_EVENT_MASK     0x0008
#define KEY_PRESS_EVENT_MASK      0x0010
#define KEY_RELEASE_EVENT_MASK    0x0020
#define FOCUS_EVENT_MASK          0x0040
#define WINDOW_EVENT_MASK         0x0080 
#define ALL_EVENTS_MASK           0x00ff

/* Default event handler is always at position 0 in the event table */
#define DESTROY_EVENT        1
#define DELETE_EVENT         2
#define LEAVE_EVENT          3
#define ENTER_EVENT          4
#define MOUSE_CLICK_EVENT    5
#define MOUSE_MOVE_EVENT     6
#define KEY_PRESS_EVENT      7
#define KEY_RELEASE_EVENT    8
#define FOCUS_IN_EVENT       9
#define FOCUS_OUT_EVENT      10
#define WINDOW_STATE_EVENT   11
#define WINDOW_MOVE_OR_RESIZE_EVENT 12
#define GENERAL_EVENT_COUNT 13


/* WIDGET FLAGS */
#define WIDGET_FLAG_VISIBLE   0x01
#define WIDGET_FLAG_COUNT     1

/* GRID PLACEMENT FLAGS */
#define FLAG_EXPAND    0x01
#define FLAG_SHRINK    0x02
#define FLAG_FILL      0x04

/* DEFAULTS */
#define DEFAULT_XFLAGS FLAG_EXPAND | FLAG_FILL 
#define DEFAULT_YFLAGS FLAG_EXPAND | FLAG_FILL 
#define DEFAULT_XPAD   0
#define DEFAULT_YPAD   0

/* PROPERTIES */
#define P_EVENT_MASK      1
#define P_PARENT          2
#define P_VISIBLE         3 
#define P_TITLE           4
#define P_WIDTH           5
#define P_HEIGHT          6
#define P_SIZE            7
#define P_TEXT            8
#define P_DATA_LENGTH     9
#define P_DATA            10
#define P_ROWS            11 
#define P_COLUMNS         12 
#define P_ROW_SPACING     13 
#define P_COLUMN_SPACING  14 
#define P_HOMOGENEOUS     15 
#define P_EDITABLE        16
#define P_VISIBILITY      17
#define P_CHECKED         18
#define P_MAX_LENGTH      20 
#define P_SELECTED        21
#define P_MODAL           22
#define P_VALUE           23
#define P_MIN_VALUE       24
#define P_MAX_VALUE       25
#define P_FRACTION        26
#define P_VERTICAL        27
#define P_DELETE_ROW      30
#define P_CLEAR           31 
#define P_TIMEOUT_SECONDS 40 
#define P_RESET           41 


/* DATA TYPES FOR DATA MODELS */
#define DT_BOOLEAN   1
#define DT_INT       2
#define DT_UINT      3
#define DT_FLOAT     4
#define DT_IMAGE     5
#define DT_STRING    6

/* CELL RENDERER TYPES */
#define CR_TEXT      1
#define CR_TOGGLE    2
#define CR_COMBO     3
#define CR_IMAGE     4

/* SPLIT PANE TYPES */
#define SPLIT_VERTICAL   1
#define SPLIT_HORIZONTAL 2
#define SP_TOP           1
#define SP_BOTTOM        2
#define SP_LEFT          1
#define SP_RIGHT         2

#define COMMON_FIELDS \
int32 id;\
int32 parent_id;\
int32 type;\
int32 flags;\
struct event_mask ev_mask;

#define GRID_PLACEMENT \
  uint16 left_coord;\
  uint16 right_coord;\
  uint16 top_coord;\
  uint16 bottom_coord;\
  uint8 xflags;\
  uint8 yflags;\
  uint8 xpad;\
  uint8 ypad;

struct widget_header{
  COMMON_FIELDS
};

struct widget_data{
  COMMON_FIELDS
  GRID_PLACEMENT
};


/****** WIDGETS ******/

struct window_data{
  COMMON_FIELDS

  int32 width;
  int32 height;
  char title[];
};
#define WINDOW_FLAG_MODAL  (1 << WIDGET_FLAG_COUNT) 
#define WINDOW_EVENT_COUNT  0


struct dialog_data{
  COMMON_FIELDS

  int32 width;
  int32 height;
  char title[];
};
#define DIALOG_FLAG_MODAL  (1 << WIDGET_FLAG_COUNT) 
#define DIALOG_EVENT_COUNT  0


struct grid_data {
  COMMON_FIELDS
  GRID_PLACEMENT
  
  uint16 rows;
  uint16 columns;
  uint8 row_spacing;
  uint8 column_spacing;
};
#define GRID_FLAG_HOMOGENEOUS (1 << WIDGET_FLAG_COUNT)
#define GRID_EVENT_COUNT    0



struct button_data {
  COMMON_FIELDS 
  GRID_PLACEMENT
};
#define BUTTON_EVENT_COUNT  5
#define BUTTON_CLICKED       (GENERAL_EVENT_COUNT)
#define BUTTON_PRESSED       (GENERAL_EVENT_COUNT + 1)
#define BUTTON_RELEASED      (GENERAL_EVENT_COUNT + 2)
#define BUTTON_ENTER         (GENERAL_EVENT_COUNT + 3)
#define BUTTON_LEAVE         (GENERAL_EVENT_COUNT + 4)



struct check_button_data {
  COMMON_FIELDS 
  GRID_PLACEMENT
};
#define CHECK_BUTTON_FLAG_CHECKED  (1 << WIDGET_FLAG_COUNT)
#define CHECK_BUTTON_EVENT_COUNT  6
#define CHECK_BUTTON_CLICKED       (GENERAL_EVENT_COUNT)
#define CHECK_BUTTON_PRESSED       (GENERAL_EVENT_COUNT + 1)
#define CHECK_BUTTON_RELEASED      (GENERAL_EVENT_COUNT + 2)
#define CHECK_BUTTON_ENTER         (GENERAL_EVENT_COUNT + 3)
#define CHECK_BUTTON_LEAVE         (GENERAL_EVENT_COUNT + 4)
#define CHECK_BUTTON_TOGGLED       (GENERAL_EVENT_COUNT + 5)


struct label_data {
  COMMON_FIELDS
  GRID_PLACEMENT

  char text[];
};
#define LABEL_EVENT_COUNT   0



struct image_data {
  COMMON_FIELDS
  GRID_PLACEMENT

  int32 pixbuf_id;
  int32 data_length;
  char data[];
};
#define IMAGE_EVENT_COUNT   0


struct image_buffer_data {
  int32 id;
  int32 parent_id;
  int32 type;

  uint8 status; /* i.e. ready, loading, broken, etc. */
  int32 data_length;
  char data[];
};
#define IMAGE_BUFFER_EVENT_COUNT   0


struct entry_data {
  COMMON_FIELDS
  GRID_PLACEMENT

  int32 max_length;
  char text[];
};
#define ENTRY_FLAG_EDITABLE   (0x1 << WIDGET_FLAG_COUNT)
#define ENTRY_FLAG_VISIBILITY (0x2 << WIDGET_FLAG_COUNT)
#define ENTRY_EVENT_COUNT   2
#define ENTRY_ACTIVATE      (GENERAL_EVENT_COUNT)
#define ENTRY_CHANGED       (GENERAL_EVENT_COUNT + 1)



struct menu_bar_data {
  COMMON_FIELDS
  GRID_PLACEMENT
};
#define MENU_BAR_EVENT_COUNT 0


struct menu_data {
  COMMON_FIELDS
  GRID_PLACEMENT
};
#define MENU_EVENT_COUNT 0


struct menu_item_data {
  COMMON_FIELDS
};
#define MENU_ITEM_EVENT_COUNT 1
#define MENU_ITEM_ACTIVATE (GENERAL_EVENT_COUNT)


struct tool_bar_data {
  COMMON_FIELDS
  GRID_PLACEMENT
};

#define TOOL_BAR_FLAG_STYLE_BOTH            (1 << WIDGET_FLAG_COUNT)
#define TOOL_BAR_FLAG_STYLE_BOTH_HORIZONTAL (2 << WIDGET_FLAG_COUNT)
#define TOOL_BAR_FLAG_STYLE_ICONS           (4 << WIDGET_FLAG_COUNT)
#define TOOL_BAR_FLAG_STYLE_TEXT            (8 << WIDGET_FLAG_COUNT)
#define TOOL_BAR_EVENT_COUNT 0


struct tool_item_data {
  COMMON_FIELDS
};
#define TOOL_ITEM_EVENT_COUNT 1
#define TOOL_ITEM_ACTIVATE (GENERAL_EVENT_COUNT)


struct tool_button_data {
  COMMON_FIELDS
  
  int32 image_id;
  char label[];
};
#define TOOL_BUTTON_EVENT_COUNT 1
#define TOOL_BUTTON_CLICKED          (GENERAL_EVENT_COUNT)

struct tool_menu_button_data {
  COMMON_FIELDS
  
  int32 image_id;
  int32 menu_id;
  char label[];
};
#define TOOL_MENU_BUTTON_EVENT_COUNT 1
#define TOOL_MENU_BUTTON_CLICKED          (GENERAL_EVENT_COUNT)



struct radio_group_data {
  int32 id;
  int32 parent_id;
  int32 type;

  int32 selected_button;
};
#define RADIO_GROUP_EVENT_COUNT 0


struct radio_button_data {
  COMMON_FIELDS
  GRID_PLACEMENT

  int32 group_id;
};
#define RADIO_BUTTON_FLAG_CHECKED  (1 << WIDGET_FLAG_COUNT)
#define RADIO_BUTTON_EVENT_COUNT  6
#define RADIO_BUTTON_CLICKED       (GENERAL_EVENT_COUNT)
#define RADIO_BUTTON_PRESSED       (GENERAL_EVENT_COUNT + 1)
#define RADIO_BUTTON_RELEASED      (GENERAL_EVENT_COUNT + 2)
#define RADIO_BUTTON_ENTER         (GENERAL_EVENT_COUNT + 3)
#define RADIO_BUTTON_LEAVE         (GENERAL_EVENT_COUNT + 4)
#define RADIO_BUTTON_TOGGLED       (GENERAL_EVENT_COUNT + 5)



struct notebook_data {
  COMMON_FIELDS
  GRID_PLACEMENT
};
#define NOTEBOOK_EVENT_COUNT 0


struct notebook_page_data { /* always a child of notebook */
  COMMON_FIELDS
  
  char title[];
};
#define NOTEBOOK_PAGE_EVENT_COUNT 0


struct scrollpane_data {
  COMMON_FIELDS
  GRID_PLACEMENT
};
#define SCROLLPANE_EVENT_COUNT 0



struct list_model_data {
  COMMON_FIELDS

  int32 columns;
  uint8 column_type[]; 
};
#define LIST_MODEL_EVENT_COUNT 2
#define LIST_MODEL_CELL_TOGGLED  (GENERAL_EVENT_COUNT)
#define LIST_MODEL_CELL_EDITED   (GENERAL_EVENT_COUNT + 1)

struct list_model_node_data {
  int32 row;
  int32 parent_id; /* list model */
  int32 type; 

  int32 var_data_offset;
  char data[]; 
};



struct tree_model_data {
  COMMON_FIELDS

  int32 columns;
  uint8 column_type[]; 
};
#define TREE_MODEL_EVENT_COUNT 2
#define TREE_MODEL_CELL_TOGGLED  (GENERAL_EVENT_COUNT)
#define TREE_MODEL_CELL_EDITED   (GENERAL_EVENT_COUNT + 1)


struct tree_model_node_data {
  int32 row;
  int32 parent_id; /* tree model or another tree node */
  int32 type; 

  int32 var_data_offset;
  char data[]; 
};



struct table_data{
  COMMON_FIELDS
  GRID_PLACEMENT

  int32 data_model;
};
#define TABLE_EVENT_COUNT 1
#define TABLE_SELECTION_CHANGED (GENERAL_EVENT_COUNT) 


struct table_column_data{
  COMMON_FIELDS
  
  int32 column_number;
  int32 combo_model;
  int32 combo_column;
  uint8 render_type;
  char title[];
};
#define TABLE_COLUMN_FLAG_EDITABLE  (1 << WIDGET_FLAG_COUNT)
#define TABLE_COLUMN_EVENT_COUNT 1
#define TABLE_COLUMN_CLICKED  (GENERAL_EVENT_COUNT)



struct frame_data {
  COMMON_FIELDS
  GRID_PLACEMENT

  char label[]; 
};
#define FRAME_EVENT_COUNT 0



struct split_pane_data {
  COMMON_FIELDS
  GRID_PLACEMENT

  int32 position;
  uint8 alignment;
};
#define SPLIT_PANE_EVENT_COUNT 0


struct combo_box_data {
  COMMON_FIELDS
  GRID_PLACEMENT

  int32 list_model;
  int32 list_model_column;
  int32 selected;
  uint8 render_type;
};
#define COMBO_BOX_EVENT_COUNT 1
#define COMBO_BOX_SELECTION_CHANGED  (GENERAL_EVENT_COUNT)



struct combo_box_entry_data {
  COMMON_FIELDS
  GRID_PLACEMENT

  int32 max_length;
  int32 list_model;
  int32 list_model_column;
  char text[];
};
#define COMBO_BOX_ENTRY_FLAG_EDITABLE    (0x1 << WIDGET_FLAG_COUNT)
#define COMBO_BOX_ENTRY_FLAG_VISIBILITY  (0x2 << WIDGET_FLAG_COUNT)
#define COMBO_BOX_ENTRY_EVENT_COUNT   3
#define COMBO_BOX_ENTRY_SELECTION_CHANGED  (GENERAL_EVENT_COUNT)
#define COMBO_BOX_ENTRY_ACTIVATE           (GENERAL_EVENT_COUNT + 1)
#define COMBO_BOX_ENTRY_CHANGED            (GENERAL_EVENT_COUNT + 2)


struct status_bar_data {
  COMMON_FIELDS
  GRID_PLACEMENT

  char text[];
};
#define STATUS_BAR_EVENT_COUNT      0


struct spin_button_data {
  COMMON_FIELDS
  GRID_PLACEMENT

  int32 precision;
  char value[32];
  char min_value[32];
  char max_value[32];
  char step[32];
};
#define SPIN_BUTTON_EVENT_COUNT      1
#define SPIN_BUTTON_CHANGED          (GENERAL_EVENT_COUNT)


struct slider_data {
  COMMON_FIELDS
  GRID_PLACEMENT

  int32 precision;
  char value[32];
  char min_value[32];
  char max_value[32];
  char step[32];
};
#define SLIDER_FLAG_VERTICAL  (1 << WIDGET_FLAG_COUNT) 
#define SLIDER_EVENT_COUNT    1
#define SLIDER_CHANGED        (GENERAL_EVENT_COUNT)


struct progress_bar_data {
  COMMON_FIELDS
  GRID_PLACEMENT

  char fraction[32];
  char text[];
};
#define PROGRESS_BAR_FLAG_VERTICAL     (0x1 << WIDGET_FLAG_COUNT) 
#define PROGRESS_BAR_FLAG_INDEFINITE   (0x2 << WIDGET_FLAG_COUNT) 
#define PROGRESS_BAR_EVENT_COUNT    0


struct text_editor_data {
  COMMON_FIELDS
  GRID_PLACEMENT

  int32 text_length;
  char text[];
};
#define TEXT_EDITOR_FLAG_EDITABLE (0x1 << WIDGET_FLAG_COUNT)
#define TEXT_EDITOR_EVENT_COUNT   2
#define TEXT_EDITOR_TEXT_INSERTED (GENERAL_EVENT_COUNT)
#define TEXT_EDITOR_TEXT_DELETED  (GENERAL_EVENT_COUNT + 1)


struct timer_data {
  int32 id;
  int32 parent_id; 
  int32 type; 
  int32 synchronized;

  int32 timeout_seconds;
};
#define TIMER_TIMEOUT (GENERAL_EVENT_COUNT)
#define TIMER_EVENT_COUNT 1

#endif /* __NTW_H */

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