sheet.h 11.8 KB
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#ifndef SHEET_H
#define SHEET_H
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#define SHEET_MAX_ROWS (16 * 1024)
#define SHEET_MAX_COLS 256

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typedef GList ColStyleList;

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typedef struct {
	int start_col, start_row;
	int end_col, end_row;
} Range;

gboolean   range_contains (Range *range, int col, int row);

typedef struct {
	Range  range;
	Style  *style;
} StyleRegion;
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typedef struct {
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	char       *filename;
	
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	GtkWidget  *toplevel;
	GtkWidget  *notebook;
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	GtkWidget  *table;

	/* Edit area */
	GtkWidget  *ea_status;
	GtkWidget  *ea_button_box;
	GtkWidget  *ea_input;
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	/* The auto-expression */
	ExprTree   *auto_expr;
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	String     *auto_expr_desc;
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	GnomeCanvasItem  *auto_expr_label;
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	/* Styles */
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	Style      style;
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	/* The sheets */ 
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	GHashTable *sheets;	/* keeps a list of the Sheets on this workbook */
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	/* A list with all of the formulas */
	GList      *formula_cell_list;

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	/* A queue with the cells to be evaluated */
	GList      *eval_queue;
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	int        max_iterations;
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	int        generation;
	
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	/* The clipboard for this workbook */
	CellRegion *clipboard_contents;
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} Workbook;

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typedef struct {
	int        base_col, base_row;
	int        start_col, start_row;
	int        end_col, end_row;
} SheetSelection;

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typedef enum {
	SHEET_MODE_SHEET,
	SHEET_MODE_CREATE_LINE,
	SHEET_MODE_CREATE_BOX,
	SHEET_MODE_CREATE_OVAL,
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	SHEET_MODE_CREATE_ARROW,
	SHEET_MODE_OBJECT_SELECTED,
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} SheetModeType;

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typedef struct {
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	int        signature;
	
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	Workbook   *workbook;
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	GList      *sheet_views;
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	char       *name;
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	GList      *style_list;	/* The list of styles applied to the sheets */
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	ColRowInfo default_col_style;
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	GList      *cols_info;
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	ColRowInfo default_row_style;
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	GList      *rows_info;
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	GHashTable *cell_hash;	/* The cells in hashed format */
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	GList      *selections;

	int        max_col_used;
	int        max_row_used;
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	int         cursor_col, cursor_row;
	
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	/* The list of formulas */
	GList      *formula_cell_list;
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	double     last_zoom_factor_used;

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	/* Objects */
	SheetModeType mode;	/* Sheet mode */
	GList      *objects;	/* List of objects in the spreadsheet */
	GList      *coords;	/* During creation time: keeps click coordinates */
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	void       *current_object;
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	/*
	 * When editing a cell: the cell (may be NULL) and
	 * the original text of the cell
	 */
	String    *editing_saved_text;
	Cell      *editing_cell;
	int        editing;
	
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	/* For walking trough a selection */
	struct {
		SheetSelection *current;
	} walk_info;
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} Sheet;

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#define SHEET_SIGNATURE 0x12349876
#define IS_SHEET(x) (((Sheet *) x)->signature == SHEET_SIGNATURE)

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typedef  void (*sheet_col_row_callback)(Sheet *sheet, ColRowInfo *ci,
					void *user_data);

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typedef  int (*sheet_cell_foreach_callback)(Sheet *sheet, int col, int row,
					    Cell *cell, void *user_data);
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Sheet      *sheet_new                  	 (Workbook *wb, char *name);
void        sheet_destroy              	 (Sheet *sheet);
void        sheet_foreach_col          	 (Sheet *sheet,
					  sheet_col_row_callback callback,
					  void *user_data);
void        sheet_foreach_row          	 (Sheet *sheet,
					  sheet_col_row_callback,
					  void *user_data);
void        sheet_set_zoom_factor      	 (Sheet *sheet, double factor);
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void        sheet_cursor_set             (Sheet *sheet,
					  int start_col, int start_row,
					  int end_col,   int end_row);
void        sheet_cursor_move            (Sheet *sheet, int col, int row);
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/* Selection management */
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void        sheet_select_all             (Sheet *sheet);
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int         sheet_is_all_selected        (Sheet *sheet);
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void        sheet_selection_append       (Sheet *sheet, int col, int row);
void        sheet_selection_extend_to    (Sheet *sheet, int col, int row);
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void        sheet_selection_reset        (Sheet *sheet);
void        sheet_selection_reset_only   (Sheet *sheet);
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int         sheet_selection_equal        (SheetSelection *a, SheetSelection *b);
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void        sheet_selection_append_range (Sheet *sheet,
					  int base_col,  int base_row,
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					  int start_col, int start_row,
					  int end_col,   int end_row);
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CellList   *sheet_selection_to_list      (Sheet *sheet);
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/* Operations on the selection */
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void        sheet_selection_clear_content     (Sheet *sheet);
void        sheet_selection_clear_formats     (Sheet *sheet);
void        sheet_selection_clear             (Sheet *sheet);
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/* Cut/Copy/Paste on the workbook selection */
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gboolean    sheet_selection_copy              (Sheet *sheet);
gboolean    sheet_selection_cut               (Sheet *sheet);
void        sheet_selection_paste             (Sheet *sheet,
					       int dest_col, int dest_row,
					       int paste_flags);
int         sheet_selection_walk_step         (Sheet *sheet,
					       int   forward,     int horizontal,
					       int   current_col, int current_row,
					       int   *new_col,    int *new_row);
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void        sheet_selection_extend_horizontal (Sheet *sheet, int count);
void        sheet_selection_extend_vertical   (Sheet *sheet, int count);
int         sheet_selection_is_cell_selected  (Sheet *sheet, int col, int row);
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gboolean    sheet_verify_selection_simple     (Sheet *sheet, char *command_name);

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/* Cell management */
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void        sheet_set_text                (Sheet *sheet, int col, int row,
					   char *str);
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Cell       *sheet_cell_new                (Sheet *sheet, int col, int row);
void        sheet_cell_add                (Sheet *sheet, Cell *cell,
				           int col, int row);
void        sheet_cell_remove             (Sheet *sheet, Cell *cell);
int         sheet_cell_foreach_range      (Sheet *sheet, int only_existing,
				           int start_col, int start_row,
				           int end_col, int end_row,
				           sheet_cell_foreach_callback callback,
				           void *closure);
Cell       *sheet_cell_get                (Sheet *sheet, int col, int row);
void        sheet_cell_formula_link       (Cell *cell);
void        sheet_cell_formula_unlink     (Cell *cell);
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/* Create new ColRowInfos from the default sheet style */
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ColRowInfo *sheet_col_new                  (Sheet *sheet);
ColRowInfo *sheet_row_new                  (Sheet *sheet);
int         sheet_row_check_bound          (int row, int diff);
int         sheet_col_check_bound          (int col, int diff);
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/* Duplicates the information of a col/row */
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ColRowInfo *sheet_duplicate_colrow        (ColRowInfo *original);
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/* Retrieve information from a col/row */
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ColRowInfo *sheet_col_get_info            (Sheet *sheet, int col);
ColRowInfo *sheet_row_get_info            (Sheet *sheet, int row);
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/* Returns a pointer to a ColRowInfo: existed or freshly created */
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ColRowInfo *sheet_row_get                 (Sheet *sheet, int pos);
ColRowInfo *sheet_col_get                 (Sheet *sheet, int pos);
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/* Add a ColRowInfo to the Sheet */
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void        sheet_col_add                 (Sheet *sheet, ColRowInfo *cp);
void        sheet_row_add                 (Sheet *sheet, ColRowInfo *cp);
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/* Measure distances in pixels from one col/row to another */
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int         sheet_col_get_distance        (Sheet *sheet, int from_col, int to_col);
int         sheet_row_get_distance        (Sheet *sheet, int from_row, int to_row);
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void        sheet_clear_region            (Sheet *sheet,
				           int start_col, int start_row,
				           int end_col,   int end_row);
void        sheet_clear_region_formats    (Sheet *sheet,
				           int start_col, int start_row,
				           int end_col,   int end_row);
void        sheet_clear_region_content    (Sheet *sheet,
				           int start_col, int start_row,
				           int end_col,   int end_row);
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/* Sets the width/height of a column row in terms of pixels */
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void        sheet_col_set_width           (Sheet *sheet,
				           int col, int width);
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void        sheet_col_info_set_width      (Sheet *sheet,
				           ColRowInfo *ci, int width);
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void        sheet_row_set_height          (Sheet *sheet,
				           int row, int width,
				           gboolean height_set_by_user);
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void        sheet_row_info_set_height     (Sheet *sheet,
				           ColRowInfo *ri, int width,
				           gboolean height_set_by_user);
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void        sheet_row_set_internal_height (Sheet *sheet, ColRowInfo *ri, int height);
void        sheet_col_set_selection       (Sheet *sheet,
					   ColRowInfo *ci, int value);
void        sheet_row_set_selection       (Sheet *sheet,
					   ColRowInfo *ri, int value);
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Style      *sheet_style_compute           (Sheet *sheet, int col, int row);
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/* Redraw */
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void        sheet_compute_visible_ranges  (Sheet *sheet);
void        sheet_redraw_cell_region      (Sheet *sheet,
				           int start_col, int start_row,
				           int end_col,   int end_row);
void        sheet_redraw_selection        (Sheet *sheet, SheetSelection *ss);
void        sheet_redraw_all              (Sheet *sheet);
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void        sheet_update_auto_expr        (Sheet *sheet);
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/* Sheet information manipulation */
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void        sheet_insert_col              (Sheet *sheet,  int col, int count);
void        sheet_delete_col              (Sheet *sheet,  int col, int count);
void        sheet_insert_row              (Sheet *sheet,  int row, int count);
void        sheet_delete_row              (Sheet *sheet,  int row, int count);
void        sheet_shift_row               (Sheet *sheet,  int col, int row, int count);
void        sheet_shift_rows              (Sheet *sheet,  int col,
				           int start_row, int end_row, int count);
void        sheet_shift_col               (Sheet *sheet,  int col, int row, int count);
void        sheet_shift_cols              (Sheet *sheet,
				           int start_col, int end_col,
				           int row,       int count);

void        sheet_style_attach            (Sheet *sheet,
					   int    start_col, int start_row,
					   int    end_col,   int end_row,
					   Style  *style);
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/*
 * Sheet visual editing
 */
void        sheet_start_editing_at_cursor (Sheet *sheet);
void        sheet_set_current_value       (Sheet *sheet);
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void        sheet_accept_pending_input    (Sheet *sheet);
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void        sheet_cancel_pending_input    (Sheet *sheet);
void        sheet_load_cell_val           (Sheet *sheet);
void        sheet_selection_col_extend_to (Sheet *sheet, int col);
void        sheet_selection_row_extend_to (Sheet *sheet, int row);

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/*
 * Event state manipulation (for mode operation)
 */
void        sheet_set_mode_type           (Sheet *sheet, SheetModeType type);


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/*
 * Callback routines.
 */
void        sheet_fill_selection_with     (Sheet *sheet, char *text);

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/*
 * Hiding/showing the cursor
 */
void        sheet_show_cursor             (Sheet *sheet);
void        sheet_hide_cursor             (Sheet *sheet);

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/*
 * Workbook
 */
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Workbook   *workbook_new                 (void);
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void        workbook_destroy             (Workbook *wb);
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Workbook   *workbook_new_with_sheets     (int sheet_count);
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void        workbook_save_as             (Workbook *);
void        workbook_save                (Workbook *);
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void        workbook_attach_sheet        (Workbook *, Sheet *);
Sheet      *workbook_focus_current_sheet (Workbook *wb);
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Sheet      *workbook_get_current_sheet   (Workbook *wb);
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void        workbook_auto_expr_label_set (Workbook *wb, char *text);
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void        workbook_next_generation     (Workbook *wb);
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void        workbook_set_region_status   (Workbook *wb, char *str);
int         workbook_parse_and_jump      (Workbook *wb, char *text);
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/*
 * Does any pending recalculations
 */
void        workbook_recalc              (Workbook *wb);
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void        workbook_recalc_all          (Workbook *wb);
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/*
 * Callback routine: invoked when the first view ItemGrid
 * is realized to allocate the default styles
 */
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void     workbook_realized            (Workbook *, GdkWindow *);
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/*
 * Feedback routines
 */
typedef enum {
	WORKBOOK_FEEDBACK_BOLD,
	WORKBOOK_FEEDBACK_ITALIC
} WorkbookFeedbackType;

void     workbook_feedback_set        (Workbook *,
				       WorkbookFeedbackType type,
				       void *data);

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extern   Workbook *current_workbook;
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#endif
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