/*
* build up a Table struct (excluding data allocation and
* anything to do with font or window size).
* return ptr to this or NULL if error
*/
lpTable
gtab_buildtable(
HWND hwnd,
DWORD_PTR id
)
{
lpTable ptab;
int ncols, i;
ColPropsList cplist;
ptab = (lpTable) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(Table));
if (ptab == NULL) {
return(NULL);
}
// get the tab width. most clients will not support this
if (gtab_sendtq(hwnd, TQ_TABS, (LPARAM) &ptab->tabchars) == FALSE) {
ptab->tabchars = TABWIDTH_DEFAULT;
}
// get the show whitespace value
if (gtab_sendtq(hwnd, TQ_SHOWWHITESPACE, (LPARAM) &ptab->show_whitespace) == FALSE) {
ptab->show_whitespace = FALSE;
}
/* get the row/column count from owner window */
ptab->hdr.id = id;
ptab->hdr.props.valid = 0;
ptab->hdr.sendscroll = FALSE;
if (gtab_sendtq(hwnd, TQ_GETSIZE, (LPARAM) &ptab->hdr) == FALSE) {
return(NULL);
}
ncols = ptab->hdr.ncols;
ptab->pcolhdr = (lpColProps) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(ColProps) * ncols);
if (ptab->pcolhdr == NULL) {
/* should prob send TQ_CLOSE at this point */
return(NULL);
}
/* init col properties to default */
for (i=0; i < ncols; i++) {
ptab->pcolhdr[i].props.valid = 0;
ptab->pcolhdr[i].nchars = 0;
}
/* get the column props from owner */
cplist.plist = ptab->pcolhdr;
cplist.id = id;
cplist.startcol = 0;
cplist.ncols = ncols;
gtab_sendtq(hwnd, TQ_GETCOLPROPS, (LPARAM) &cplist);
/* init remaining fields */
ptab->pcellpos = (lpCellPos) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(CellPos) * ncols);
if (ptab->pcellpos == NULL) {
return(NULL);
}
ptab->scrollscale = 1;
ptab->scroll_dx = 0;
ptab->toprow = 0;
ptab->pdata = NULL;
ptab->nlines = 0;
ptab->trackmode = TRACK_NONE;
/* we have to notify owner of the current selection
* whenever it is changed
*/
ptab->select.id = id;
gtab_select(hwnd, ptab, 0, 0, 0, 0, TRUE);
/* calc ave height/width, cell widths and min height.
* these change only when cell properties / col count changes -
* ie only on rebuild-header events
*/
gtab_calcwidths(hwnd, ptab);
return(ptab);
}
/*
* called on mouse-up. complete any tracking that was happening
*/
void
gtab_release(HWND hwnd, lpTable ptab, int x, int y)
{
lpCellPos ppos;
lpProps pprop;
long row, cell;
int cx;
switch(ptab->trackmode) {
case TRACK_NONE:
return;
case TRACK_COLUMN:
/* erase marker lines */
gtab_drawvertline(hwnd, ptab);
ReleaseCapture();
ptab->trackmode = TRACK_NONE;
/* adjust cell width */
ppos = &ptab->pcellpos[ptab->tracknr];
cx = ptab->trackline1 - ppos->start;
pprop = &ptab->pcolhdr[ptab->tracknr].props;
pprop->valid |= P_WIDTH;
pprop->width = cx;
gtab_calcwidths(hwnd, ptab);
gtab_setsize(hwnd, ptab);
InvalidateRect(hwnd, NULL, FALSE);
return;
case TRACK_CELL:
row = gtab_linetorow(hwnd, ptab, gtab_ytoline(hwnd, ptab, y));
cell = gtab_xtocol(hwnd, ptab, x);
ReleaseCapture();
ptab->trackmode = TRACK_NONE;
// ignore if before or beyond data
if ( (row < ptab->hdr.fixedrows) ||
(cell < ptab->hdr.fixedcols)) {
if (ptab->hdr.fixedselectable == FALSE) {
gtab_select(
hwnd,
ptab,
ptab->select.startrow,
ptab->select.startcell,
ptab->select.nrows,
ptab->select.ncells,
TRUE);
return;
}
}
if ((row >= ptab->hdr.nrows) ||
(cell >= ptab->hdr.ncols)) {
gtab_select(
hwnd,
ptab,
ptab->select.startrow,
ptab->select.startcell,
ptab->select.nrows,
ptab->select.ncells,
TRUE);
return;
}
/*
* Extend to this new selection end point
* we used to only do this if shift key pressed, but that
* is not a good UI.
*/
gtab_extendsel(hwnd, ptab, row, cell, TRUE);
return;
}
}
