andlabs-ui/wintable/api.h

111 lines
3.3 KiB
C

// 8 december 2014
static void addColumn(struct table *t, WPARAM wParam, LPARAM lParam)
{
t->nColumns++;
t->columnTypes = (int *) tableRealloc(t->columnTypes, t->nColumns * sizeof (int), "adding the new column type to the current Table's list of column types");
t->columnTypes[t->nColumns - 1] = (int) wParam;
// TODO make a panicNoErrCode() or panicArg() for this
if (t->columnTypes[t->nColumns - 1] >= nTableColumnTypes)
panic("invalid column type passed to tableAddColumn");
headerAddColumn(t, (WCHAR *) lParam);
update(t, TRUE);
// TODO only redraw the part of the client area where the new client went, if any
// (TODO when — if — adding autoresize, figure this one out)
// TODO send a notification for all rows?
}
// TODO what happens if the currently selected row is lost?
static void setRowCount(struct table *t, intptr_t rc)
{
intptr_t old, i;
old = t->count;
t->count = rc;
// we DO redraw everything because we don't want any rows that should no longer be there to remain on screen!
updateAll(t); // DONE
// TODO reset checkbox and selection logic if the current row for both no longer exists
// TODO really send all these notifications?
if (old < t->count) // rows added
for (i = old; i < t->count; i++)
NotifyWinEvent(EVENT_OBJECT_CREATE, t->hwnd, OBJID_CLIENT, i);
else if (old > t->count) // rows removed
for (i = old; i > t->count; i++)
NotifyWinEvent(EVENT_OBJECT_DESTROY, t->hwnd, OBJID_CLIENT, i);
// TODO update existing rows?
}
HANDLER(apiHandlers)
{
intptr_t *rcp;
intptr_t row;
switch (uMsg) {
case WM_SETFONT:
// don't free the old font; see http://blogs.msdn.com/b/oldnewthing/archive/2008/09/12/8945692.aspx
t->font = (HFONT) wParam;
SendMessageW(t->header, WM_SETFONT, wParam, lParam);
// if we redraw, we have to redraw ALL of it; after all, the font changed!
if (LOWORD(lParam) != FALSE)
updateAll(t); // DONE
else
update(t, FALSE); // DONE
*lResult = 0;
return TRUE;
case WM_GETFONT:
*lResult = (LRESULT) (t->font);
return TRUE;
case tableAddColumn:
addColumn(t, wParam, lParam);
*lResult = 0;
return TRUE;
case tableSetRowCount:
rcp = (intptr_t *) lParam;
setRowCount(t, *rcp);
*lResult = 0;
return TRUE;
case tableGetSelection:
rcp = (intptr_t *) wParam;
if (rcp != NULL)
*rcp = t->selectedRow;
rcp = (intptr_t *) lParam;
if (rcp != NULL)
*rcp = t->selectedColumn;
*lResult = 0;
return TRUE;
case tableSetSelection:
// TODO does doselect() do validation?
rcp = (intptr_t *) wParam;
row = *rcp;
rcp = (intptr_t *) lParam;
if (rcp == NULL)
if (row == -1)
doselect(t, -1, -1);
else // select column 0, just like keyboard selections; TODO what if there aren't any columns?
doselect(t, row, 0);
else
doselect(t, row, *rcp);
*lResult = 0;
return TRUE;
}
return FALSE;
}
static LRESULT notify(struct table *t, UINT code, intptr_t row, intptr_t column, uintptr_t data)
{
tableNM nm;
ZeroMemory(&nm, sizeof (tableNM));
nm.nmhdr.hwndFrom = t->hwnd;
// TODO check for error from here? 0 is a valid ID (IDCANCEL)
nm.nmhdr.idFrom = GetDlgCtrlID(t->hwnd);
nm.nmhdr.code = code;
nm.row = row;
nm.column = column;
nm.columnType = t->columnTypes[nm.column];
nm.data = data;
// TODO check for error from GetParent()?
return SendMessageW(GetParent(t->hwnd), WM_NOTIFY, (WPARAM) (nm.nmhdr.idFrom), (LPARAM) (&nm));
}