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Moved Table width calculation out of recomputeHScroll() and into updateTableWidth(); also stored width in the Table itself.

This commit is contained in:
Pietro Gagliardi 2014-12-10 10:07:08 -05:00
parent b2b04c6de4
commit 395521b832
3 changed files with 15 additions and 12 deletions
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13
wintable/new/header.h
View File

@ -55,6 +55,19 @@ static void headerAddColumn(struct table *t, WCHAR *name)
static void updateTableWidth(struct table *t)
{
HDITEMW item;
intptr_t i;
t->width = 0;
// TODO count dividers?
for (i = 0; i < t->nColumns; i++) {
ZeroMemory(&item, sizeof (HDITEMW));
item.mask = HDI_WIDTH;
if (SendMessageW(t->header, HDM_GETITEM, (WPARAM) i, (LPARAM) (&item)) == FALSE)
panic("error getting Table column width for updateTableWidth()");
t->width += item.cxy;
}
// TODO replace this with a call to hscrollby(t, 0)
recomputeHScroll(t);
}

13
wintable/new/hscroll.h
View File

@ -18,19 +18,8 @@ static void hscroll(struct table *t, WPARAM wParam, LPARAM lParam)
static void recomputeHScroll(struct table *t)
{
SCROLLINFO si;
HDITEMW item;
intptr_t i, width;
RECT r;
width = 0;
// TODO count dividers?
for (i = 0; i < t->nColumns; i++) {
ZeroMemory(&item, sizeof (HDITEMW));
item.mask = HDI_WIDTH;
if (SendMessageW(t->header, HDM_GETITEM, (WPARAM) i, (LPARAM) (&item)) == FALSE)
panic("error getting Table column width for recomputeHScroll()");
width += item.cxy;
}
if (GetClientRect(t->hwnd, &r) == 0)
panic("error getting Table client rect for recomputeHScroll()");
ZeroMemory(&si, sizeof (SCROLLINFO));
@ -38,7 +27,7 @@ static void recomputeHScroll(struct table *t)
si.fMask = SIF_PAGE | SIF_RANGE;
si.nPage = r.right - r.left;
si.nMin = 0;
si.nMax = width - 1; // endpoint inclusive
si.nMax = t->width - 1; // endpoint inclusive
SetScrollInfo(t->hwnd, SB_HORZ, &si, TRUE);
// TODO what happens if the above call renders the current scroll position moot?
}

1
wintable/new/main.c
View File

@ -52,6 +52,7 @@ struct table {
HFONT font;
intptr_t nColumns;
int *columnTypes;
intptr_t width;
};
#include "util.h"