andlabs-ui/wintable/new/draw.h

52 lines
1.2 KiB
C

// 8 december 2014
static void draw(struct table *t, HDC dc, RECT cliprect, RECT client)
{
LRESULT i, n;
RECT r;
int x = 0;
n = SendMessageW(t->header, HDM_GETITEMCOUNT, 0, 0);
for (i = 0; i < n; i++) {
SendMessage(t->header, HDM_GETITEMRECT, (WPARAM) i, (LPARAM) (&r));
r.top = client.top;
r.bottom = client.bottom;
FillRect(dc, &r, GetSysColorBrush(x));
x++;
}
}
// TODO handle WM_PRINTCLIENT flags?
HANDLER(drawHandlers)
{
HDC dc;
PAINTSTRUCT ps;
RECT client;
RECT r;
BOOL wmpaint;
if (uMsg != WM_PAINT && uMsg != WM_PRINTCLIENT)
return FALSE;
if (GetClientRect(t->hwnd, &client) == 0)
panic("error getting client rect for Table painting");
// let's be nice: some controls don't support WM_PRINTCLIENT but do allow you to pass a HDC as the WPARAM to WM_PAINT, so let's support that too as an option
// TODO find out how susch controls handle LPARAM
wmpaint = uMsg == WM_PAINT && ((HDC) wParam) == NULL;
if (wmpaint) {
dc = BeginPaint(t->hwnd, &ps);
if (dc == NULL)
panic("error beginning Table painting");
r = ps.rcPaint;
} else {
dc = (HDC) wParam;
r = client;
}
draw(t, dc, r, client);
if (wmpaint)
EndPaint(t->hwnd, &ps);
// TODO is this correct for WM_PRINTCLIENT? MSDN doesn't say
*lResult = 0;
return TRUE;
}