diff options
Diffstat (limited to 'wintable/main.c')
| -rw-r--r-- | wintable/main.c | 66 |
1 files changed, 53 insertions, 13 deletions
diff --git a/wintable/main.c b/wintable/main.c index 0e9a4d8..5edf1ed 100644 --- a/wintable/main.c +++ b/wintable/main.c @@ -35,9 +35,27 @@ struct table { static void vscroll(struct table *t, WPARAM wParam) { + HFONT thisfont, prevfont; + TEXTMETRICW tm; + HDC dc; SCROLLINFO si; intptr_t newpos; + // TODO split into a function + dc = GetDC(t->hwnd); + if (dc == NULL) + abort(); + 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(); + if (SelectObject(dc, prevfont) != (HGDIOBJ) (thisfont)) + abort(); + if (ReleaseDC(t->hwnd, dc) == 0) + abort(); + ZeroMemory(&si, sizeof (SCROLLINFO)); si.cbSize = sizeof (SCROLLINFO); si.fMask = SIF_POS | SIF_TRACKPOS; @@ -76,7 +94,7 @@ static void vscroll(struct table *t, WPARAM wParam) newpos = (t->count - t->pagesize); // negative because ScrollWindowEx() is "backwards" - if (ScrollWindowEx(t->hwnd, 0, -(newpos - t->firstVisible), + if (ScrollWindowEx(t->hwnd, 0, (-(newpos - t->firstVisible)) * tm.tmHeight, NULL, NULL, NULL, NULL, SW_ERASE | SW_INVALIDATE) == ERROR) abort(); @@ -92,6 +110,39 @@ static void vscroll(struct table *t, WPARAM wParam) SetScrollInfo(t->hwnd, SB_VERT, &si, TRUE); } +static void resize(struct table *t) +{ + HFONT thisfont, prevfont; + TEXTMETRICW tm; + HDC dc; + RECT r; + SCROLLINFO si; + + if (GetClientRect(t->hwnd, &r) == 0) + abort(); + dc = GetDC(t->hwnd); + if (dc == NULL) + abort(); + 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(); + if (SelectObject(dc, prevfont) != (HGDIOBJ) (thisfont)) + abort(); + if (ReleaseDC(t->hwnd, dc) == 0) + abort(); + t->pagesize = (r.bottom - r.top) / tm.tmHeight; + ZeroMemory(&si, sizeof (SCROLLINFO)); + si.cbSize = sizeof (SCROLLINFO); + si.fMask = SIF_RANGE | SIF_PAGE; + si.nMin = 0; + si.nMax = t->count - 1; + si.nPage = t->pagesize; + SetScrollInfo(t->hwnd, SB_VERT, &si, TRUE); +} + static void drawItems(struct table *t, HDC dc, RECT cliprect) { HFONT thisfont, prevfont; @@ -164,8 +215,6 @@ static LRESULT CALLBACK tableWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM struct table *t; HDC dc; PAINTSTRUCT ps; - RECT r; - SCROLLINFO si; t = (struct table *) GetWindowLongPtrW(hwnd, GWLP_USERDATA); if (t == NULL) { @@ -203,16 +252,7 @@ t->selected = 5;t->count=100;//TODO vscroll(t, wParam); return 0; case WM_SIZE: - if (GetClientRect(hwnd, &r) == 0) - abort(); - /*TODO - t->pagesize = (r.bottom - r.top) / tm.tmHeight; - ZeroMemory(&si, sizeof (SCROLLINFO)); - si.cbSize = sizeof (SCROLLINFO); - si.fMask = SIF_PAGE; - si.nPage = t->pagesize; - SetScrollInfo(hwnd, SB_VERT, &si, TRUE); - */ + resize(t); return 0; default: return DefWindowProcW(hwnd, uMsg, wParam, lParam); |