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Wrote code to get Windows Tabs's tab height; will integrate it later.

This commit is contained in:
Pietro Gagliardi 2014-08-02 11:05:18 -04:00
parent c6e47ba21a
commit 1f6ad99afb
2 changed files with 32 additions and 0 deletions
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31
redo/containerctrls_windows.c
View File

@ -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;
}

1
redo/winapi_windows.h
View File

@ -89,6 +89,7 @@ extern LPWSTR xWC_TABCONTROL;
extern void setTabSubclass(HWND, void *);
extern void tabAppend(HWND, LPWSTR);
extern void tabGetContentRect(HWND, RECT *);
extern LONG tabGetTabHeight(HWND);
/* table_windows.go */
extern LPWSTR xWC_LISTVIEW;