diff options
Diffstat (limited to 'redo/containerctrls_windows.c')
| -rw-r--r-- | redo/containerctrls_windows.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/redo/containerctrls_windows.c b/redo/containerctrls_windows.c index 6895ec4..e7f1f90 100644 --- a/redo/containerctrls_windows.c +++ b/redo/containerctrls_windows.c @@ -61,3 +61,34 @@ void tabGetContentRect(HWND hwnd, RECT *r) /* not &r; already a pointer (thanks MindChild in irc.efnet.net/#winprog for spotting my failure) */ SendMessageW(hwnd, TCM_ADJUSTRECT, FALSE, (LPARAM) r); } + +/* TODO this assumes that all inactive tabs have the same height */ +LONG tabGetTabHeight(HWND hwnd) +{ + RECT r; + RECT r2; + LRESULT n, current, other; + + n = SendMessageW(hwnd, TCM_GETITEMCOUNT, 0, 0); + /* if there are no tabs, then the control just draws a box over the full window rect, reserving no space for tabs (TODO check on windows xp and 7) */ + if (n == 0) + return 0; + /* get the current tab's height */ + /* note that Windows calls the tabs themselves "items" */ + current = SendMessageW(hwnd, TCM_GETCURSEL, 0, 0); + if (SendMessageW(hwnd, TCM_GETITEMRECT, (WPARAM) current, (LPARAM) (&r)) == FALSE) + xpanic("error getting current tab's tab height for Tab.preferredSize()", GetLastError()); + /* if there's only one tab, then it's the current one; just get its size and return it */ + if (n == 1) + goto onlyOne; + /* otherwise, get an inactive tab's height and return the taller of the two heights */ + other = current + 1; + if (other >= n) + other = 0; + if (SendMessageW(hwnd, TCM_GETITEMRECT, (WPARAM) other, (LPARAM) (&r2)) == FALSE) + xpanic("error getting other tab's tab height for Tab.preferredSize()", GetLastError()); + if ((r2.bottom - r2.top) > (r.bottom - r.top)) + return r2.bottom - r2.top; +onlyOne: + return r.bottom - r.top; +} |