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Tried to set up the viewport for the header area. Drawing still not done.

This commit is contained in:
Pietro Gagliardi 2014-10-20 19:52:39 -04:00
parent 3385761294
commit 424e05efa1
1 changed files with 27 additions and 9 deletions
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36
wintable/main.c
View File

@ -71,6 +71,16 @@ static void redrawAll(struct table *t)
abort();
}
static RECT realClientRect(struct table *t)
{
RECT r;
if (GetClientRect(t->hwnd, &r) == 0)
abort();
r.top += t->headerHeight;
return r;
}
static void keySelect(struct table *t, WPARAM wParam, LPARAM lParam)
{
// TODO what happens if up/page up is pressed with nothing selected?
@ -129,15 +139,18 @@ static void selectItem(struct table *t, WPARAM wParam, LPARAM lParam)
static void vscrollto(struct table *t, intptr_t newpos)
{
SCROLLINFO si;
RECT scrollArea;
if (newpos < 0)
newpos = 0;
if (newpos > (t->count - t->pagesize))
newpos = (t->count - t->pagesize);
scrollArea = realClientRect(t);
// negative because ScrollWindowEx() is "backwards"
if (ScrollWindowEx(t->hwnd, 0, (-(newpos - t->firstVisible)) * rowHeight(t),
NULL, NULL, NULL, NULL,
&scrollArea, &scrollArea, NULL, NULL,
SW_ERASE | SW_INVALIDATE) == ERROR)
abort();
t->firstVisible = newpos;
@ -226,8 +239,19 @@ static void resize(struct table *t)
HDLAYOUT headerlayout;
WINDOWPOS headerpos;
if (GetClientRect(t->hwnd, &r) == 0)
// do this first so our scrollbar calculations can be correct
if (GetClientRect(t->hwnd, &r) == 0) // use the whole client rect
abort();
headerlayout.prc = &r;
headerlayout.pwpos = &headerpos;
if (SendMessageW(t->header, HDM_LAYOUT, 0, (LPARAM) (&headerlayout)) == FALSE)
abort();
if (SetWindowPos(t->header, headerpos.hwndInsertAfter, headerpos.x, headerpos.y, headerpos.cx, headerpos.cy, headerpos.flags | SWP_SHOWWINDOW) == 0)
abort();
t->headerHeight = headerpos.cy;
// now adjust the scrollbars
r = realClientRect(t);
t->pagesize = (r.bottom - r.top) / rowHeight(t);
ZeroMemory(&si, sizeof (SCROLLINFO));
si.cbSize = sizeof (SCROLLINFO);
@ -236,13 +260,6 @@ static void resize(struct table *t)
si.nMax = t->count - 1;
si.nPage = t->pagesize;
SetScrollInfo(t->hwnd, SB_VERT, &si, TRUE);
headerlayout.prc = &r;
headerlayout.pwpos = &headerpos;
if (SendMessageW(t->header, HDM_LAYOUT, 0, (LPARAM) (&headerlayout)) == FALSE)
abort();
if (SetWindowPos(t->header, headerpos.hwndInsertAfter, headerpos.x, headerpos.y, headerpos.cx, headerpos.cy, headerpos.flags | SWP_SHOWWINDOW) == 0)
abort();
t->headerHeight = headerpos.cy;
}
static void drawItems(struct table *t, HDC dc, RECT cliprect)
@ -275,6 +292,7 @@ static void drawItems(struct table *t, HDC dc, RECT cliprect)
abort();
// see http://blogs.msdn.com/b/oldnewthing/archive/2003/07/29/54591.aspx and http://blogs.msdn.com/b/oldnewthing/archive/2003/07/30/54600.aspx
// this is also why we kept cliprect unaware of t->headerHeight above
first = cliprect.top / tm.tmHeight;
if (first < 0)
first = 0;