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More image list refinements.

This commit is contained in:
Pietro Gagliardi 2014-10-21 14:39:46 -04:00
parent 41d143d509
commit d18fc4296d
1 changed files with 20 additions and 12 deletions
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32
wintable/main.c
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@ -44,6 +44,7 @@ struct table {
int headerHeight;
intptr_t nColumns;
HIMAGELIST imagelist;
int imagelistHeight;
};
static LONG rowHeight(struct table *t)
@ -51,6 +52,7 @@ static LONG rowHeight(struct table *t)
HFONT thisfont, prevfont;
TEXTMETRICW tm;
HDC dc;
LONG ret;
dc = GetDC(t->hwnd);
if (dc == NULL)
@ -65,7 +67,10 @@ static LONG rowHeight(struct table *t)
abort();
if (ReleaseDC(t->hwnd, dc) == 0)
abort();
return tm.tmHeight;
ret = tm.tmHeight;
if (ret < t->imagelistHeight)
ret = t->imagelistHeight;
return ret;
}
static void redrawAll(struct table *t)
@ -307,7 +312,7 @@ static void resize(struct table *t)
static void drawItems(struct table *t, HDC dc, RECT cliprect)
{
HFONT thisfont, prevfont;
TEXTMETRICW tm;
LONG height;
LONG y;
intptr_t i;
RECT controlSize; // for filling the entire selected row
@ -317,33 +322,33 @@ static void drawItems(struct table *t, HDC dc, RECT cliprect)
if (GetClientRect(t->hwnd, &controlSize) == 0)
abort();
height = rowHeight(t);
thisfont = t->font; // in case WM_SETFONT happens before we return
prevfont = (HFONT) SelectObject(dc, thisfont);
if (prevfont == NULL)
abort();
if (GetTextMetricsW(dc, &tm) == 0)
abort();
// adjust the clip rect and the window so that (0, 0) is always the first item
// adjust the viewport so that everything is shifted down t->headerHeight pixels
if (OffsetRect(&cliprect, 0, t->firstVisible * tm.tmHeight) == 0)
if (OffsetRect(&cliprect, 0, t->firstVisible * height) == 0)
abort();
if (GetWindowOrgEx(dc, &prevOrigin) == 0)
abort();
if (SetWindowOrgEx(dc, prevOrigin.x, prevOrigin.y + (t->firstVisible * tm.tmHeight), NULL) == 0)
if (SetWindowOrgEx(dc, prevOrigin.x, prevOrigin.y + (t->firstVisible * height), NULL) == 0)
abort();
if (SetViewportOrgEx(dc, 0, t->headerHeight, &prevViewportOrigin) == 0)
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
first = cliprect.top / tm.tmHeight;
first = cliprect.top / height;
if (first < 0)
first = 0;
last = (cliprect.bottom + tm.tmHeight - 1) / tm.tmHeight;
last = (cliprect.bottom + height - 1) / height;
if (last >= t->count)
last = t->count;
y = first * tm.tmHeight;
y = first * height;
for (i = first; i < last; i++) {
RECT rsel;
HBRUSH background;
@ -371,7 +376,7 @@ static void drawItems(struct table *t, HDC dc, RECT cliprect)
rsel.left = controlSize.left;
rsel.top = y;
rsel.right = controlSize.right - controlSize.left;
rsel.bottom = y + tm.tmHeight;
rsel.bottom = y + height;
if (FillRect(dc, &rsel, background) == 0)
abort();
@ -410,11 +415,12 @@ static void drawItems(struct table *t, HDC dc, RECT cliprect)
rsel.left = headeritem.left + xoff;
rsel.top = y;
rsel.right = headeritem.right;
rsel.bottom = y + tm.tmHeight;
rsel.bottom = y + height;
// TODO vertical center in case the height is less than the icon height?
if (DrawTextExW(dc, msg, wsprintf(msg, L"Item %d", i), &rsel, DT_END_ELLIPSIS | DT_LEFT | DT_NOPREFIX | DT_SINGLELINE, NULL) == 0)
abort();
}
y += tm.tmHeight;
y += height;
}
// reset everything
@ -480,9 +486,11 @@ t->imagelist = ImageList_Create(GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(
if(t->imagelist==NULL)abort();
{
HICON icon;
int unused;
icon = LoadIconW(NULL, IDI_ERROR);
if(icon == NULL)abort();
if (ImageList_AddIcon(t->imagelist, icon) == -1)abort();
if (ImageList_GetIconSize(t->imagelist, &unused, &(t->imagelistHeight)) == 0)abort();
}
}
SetWindowLongPtrW(hwnd, GWLP_USERDATA, (LONG_PTR) t);