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new routine to correctly handle table resizing

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git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@466 57a11ea4-9604-0410-9ed3-97b8803252fd
This commit is contained in:
Linas Vepstas 1998-01-30 19:02:42 +00:00
parent 51ed1ddecc
commit 1eddf4303a
3 changed files with 158 additions and 54 deletions
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4
src/register/register.c
View File

@ -183,10 +183,10 @@ void xaccInitBasicRegister (BasicRegister *reg)
xaccAddComboCellMenuItem ( reg->actionCell, WITHDRAW_STR);
/* -------------------------------- */
table = xaccMallocTable (0, 0);
table = xaccMallocTable ();
xaccInitTable (table);
table -> header = header;
xaccSetCursor (table, curs);
xaccInitTable (table, 5, 1);
reg->table = table;
}

198
src/register/table.c
View File

@ -21,21 +21,18 @@ static Boolean haveQuarks = False;
/* ==================================================== */
Table *
xaccMallocTable (int tile_rows, int tile_cols)
xaccMallocTable (void)
{
Table *table;
table = (Table *) malloc (sizeof (Table));
table->header = NULL;
table->cursor = NULL;
table->entries = NULL;
xaccInitTable (table, tile_rows, tile_cols);
xaccInitTable (table);
return table;
}
/* ==================================================== */
void
xaccInitTable (Table * table, int tile_rows, int tile_cols)
xaccInitTable (Table * table)
{
int num_header_rows;
int num_phys_rows;
@ -45,21 +42,41 @@ xaccInitTable (Table * table, int tile_rows, int tile_cols)
table->table_widget = 0;
table->next_tab_group = 0;
/* delete old entries */
num_phys_rows = table->num_phys_rows;
num_phys_cols = table->num_phys_cols;
if (table->entries) {
for (i=0; i<num_phys_rows; i++) {
if (table->entries[i]) {
for (j=0; j<num_phys_cols; j++) {
free (table->entries[i][j]);
}
free (table->entries[i]);
}
}
free (table->entries);
table->tile_height = 0;
table->tile_width = 0;
table->num_phys_rows = 0;
table->num_phys_cols = 0;
table->num_header_rows = 0;
table->num_rows = 0;
table->num_cols = 0;
table->current_cursor_row = -1;
table->current_cursor_col = -1;
table->header = NULL;
table->cursor = NULL;
table->entries = NULL;
/* invalidate the "previous" traversed cell */
table->prev_phys_traverse_row = -1;
table->prev_phys_traverse_col = -1;
}
/* ==================================================== */
void
xaccSetTableSize (Table * table, int tile_rows, int tile_cols)
{
int num_header_rows;
int num_phys_rows, num_phys_cols;
int old_phys_rows, old_phys_cols;
int i,j;
/* save old table size
old_phys_rows = table->num_phys_rows;
old_phys_cols = table->num_phys_cols;
/* compute number of physical rows */
num_header_rows = 0;
num_phys_rows = 0;
@ -85,30 +102,105 @@ xaccInitTable (Table * table, int tile_rows, int tile_cols)
table->num_rows = tile_rows;
table->num_cols = tile_cols;
/* set the cursor location */
table->current_cursor_row = 0;
table->current_cursor_col = 0;
/* create an empty table */
if (0 == num_phys_rows) {
table->entries = NULL;
return;
}
table->entries = (char ***) malloc (num_phys_rows * sizeof (char **));
for (i=0; i<num_phys_rows; i++) {
table->entries[i] = (char **) malloc (num_phys_cols * sizeof (char *));
for (j=0; j<num_phys_cols; j++) {
/* the Xbae matrix hates null cell values, so lets
* accomodate it by letting empty cells have empty
* strings */
table->entries[i][j] = strdup ("");
}
}
/* invalidate the "previous" traversed cell */
table->prev_phys_traverse_row = -1;
table->prev_phys_traverse_col = -1;
/* realloc to get the new table size. Note that the
* new table may be wider or slimmer, taller or shorter. */
if (old_phys_rows >= num_phys_rows) {
if (old_phys_cols >= num_phys_cols) {
/* if we are here, new table has fewer cols
* simply truncate columns */
for (i=0; i<num_phys_rows; i++) {
for (j=num_phys_cols; j<old_phys_cols; j++) {
free (table->entries[i][j]);
table->entries[i][j] = NULL;
}
}
} else {
/* if we are here, the new table has more
* columns. Realloc the columns. */
for (i=0; i<num_phys_rows; i++) {
char **old_row;
old_row = table->entries[i];
table->entries[i] = (char **) malloc (num_phys_cols * sizeof (char *));
for (j=0; j<old_phys_cols; j++) {
table->entries[i][j] = old_row[j];
}
for (j=old_phys_cols; j<num_phys_cols; j++) {
table->entries[i][j] = strdup ("");
}
free (old_row);
}
}
/* new table has fewer rows. Simply truncate the rows */
for (i=num_phys_rows; i<old_phys_rows; i++) {
for (j=0; j<old_phys_cols; j++) {
free (table->entries[i][j]);
}
free (table->entries[i]);
table->entries[i] = NULL;
}
} else {
char ***old_entries;
if (old_phys_cols >= num_phys_cols) {
/* new table has fewer columns.
* Simply truncate the columns */
for (i=0; i<old_phys_rows; i++) {
for (j=num_phys_cols; j<old_phys_cols; j++) {
free (table->entries[i][j]);
table->entries[i][j] = NULL;
}
}
} else {
/* if we are here, the new table has more
* columns. Realloc the columns. */
for (i=0; i<old_phys_rows; i++) {
char **old_row;
old_row = table->entries[i];
table->entries[i] = (char **) malloc (num_phys_cols * sizeof (char *));
for (j=0; j<old_phys_cols; j++) {
table->entries[i][j] = old_row[j];
}
for (j=old_phys_cols; j<num_phys_cols; j++) {
table->entries[i][j] = strdup ("");
}
free (old_row);
}
}
/* now, add all new rows */
old_entries = table->entries;
table->entries = (char ***) malloc (num_phys_rows * sizeof (char **));
for (i=0; i<old_phys_rows; i++) {
table->entries[i] = old_entries[i];
}
free (old_entries);
for (i=old_phys_rows; i<num_phys_rows; i++) {
table->entries[i] = (char **) malloc (num_phys_cols * sizeof (char *));
for (j=0; j<num_phys_cols; j++) {
table->entries[i][j] = strdup ("");
}
}
}
/* invalidate the current cursor position, if needed */
if ((table->current_cursor_row >= table->num_rows) ||
(table->current_cursor_col >= table->num_cols)) {
table->current_cursor_row = -1;
table->current_cursor_col = -1;
}
}
/* ==================================================== */
@ -127,11 +219,12 @@ void xaccMoveCursor (Table *table, int virt_row, int virt_col)
int iphys,jphys;
BasicCell *cell;
table->current_cursor_row = virt_row;
table->current_cursor_col = virt_col;
if ((0 > virt_row) || (0 > virt_col)) return;
if (virt_row >= table->num_rows) return;
if (virt_col >= table->num_cols) return;
table->current_cursor_row = virt_row;
table->current_cursor_col = virt_col;
/* update the cell values to reflect the new position */
/* also, move the cell GUI, if needed */
@ -157,11 +250,12 @@ void xaccMoveCursorGUI (Table *table, int virt_row, int virt_col)
int iphys,jphys;
BasicCell *cell;
table->current_cursor_row = virt_row;
table->current_cursor_col = virt_col;
if ((0 > virt_row) || (0 > virt_col)) return;
if (virt_row >= table->num_rows) return;
if (virt_col >= table->num_cols) return;
table->current_cursor_row = virt_row;
table->current_cursor_col = virt_col;
/* update the cell values to reflect the new position */
/* also, move the cell GUI, if needed */
@ -186,20 +280,28 @@ void xaccMoveCursorGUI (Table *table, int virt_row, int virt_col)
/* ==================================================== */
void xaccCommitEdits (Table *table)
void xaccCommitCursor (Table *table)
{
int i,j;
int iphys,jphys;
BasicCell *cell;
int virt_row, virt_col;
virt_row = table->current_cursor_row;
virt_col = table->current_cursor_col;
if ((0 > virt_row) || (0 > virt_col)) return;
if (virt_row >= table->num_rows) return;
if (virt_col >= table->num_cols) return;
for (i=0; i<table->tile_height; i++) {
iphys = i + table->current_cursor_row * table->tile_height;
iphys = i + virt_row * table->tile_height;
iphys += table->num_header_rows;
for (j=0; j<table->tile_width; j++) {
cell = table->cursor->cells[i][j];
if (cell) {
jphys = j + table->current_cursor_col * table->tile_width;
jphys = j + virt_col * table->tile_width;
if (table->entries[iphys][jphys]) {
free (table->entries[iphys][jphys]);
}
@ -234,7 +336,7 @@ verifyCursorPosition (Table *table, int phys_row, int phys_col)
/* before leaving, the current virtual position,
* commit any aedits that have been accumulated
* in the cursor */
xaccCommitEdits (table);
xaccCommitCursor (table);
xaccMoveCursorGUI (table, virt_row, virt_col);
}
}

8
src/register/table.h
View File

@ -71,8 +71,10 @@ typedef struct _Table {
} Table;
Table * xaccMallocTable (int tile_rows, int tile_cols);
void xaccInitTable (Table *, int tile_rows, int tile_cols);
Table * xaccMallocTable (void);
void xaccInitTable (Table *);
void xaccSetTableSize (Table * table, int tile_rows, int tile_cols);
/* create the widget */
Widget xaccCreateTable (Table *, Widget parent, char * name);
@ -93,7 +95,7 @@ void xaccMoveCursor (Table *, int virt_row, int virt_col);
void xaccMoveCursorGUI (Table *, int virt_row, int virt_col);
/* copy text in the cursor cells to the table */
void xaccCommitEdits (Table *);
void xaccCommitCursor (Table *);
#endif __XACC_TABLE_H__
/* ================== end of file ======================= */