diff options
Diffstat (limited to 'wintable/draw.h')
| -rw-r--r-- | wintable/draw.h | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/wintable/draw.h b/wintable/draw.h new file mode 100644 index 0000000..adc1e68 --- /dev/null +++ b/wintable/draw.h @@ -0,0 +1,166 @@ +// 30 november 2014 + +static void resize(struct table *t) +{ + RECT r; + SCROLLINFO si; + + // do this first so our scrollbar calculations can be correct + repositionHeader(t); + + // now adjust the scrollbars + r = realClientRect(t); + t->pagesize = (r.bottom - r.top) / rowHeight(t); + 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); + + recomputeHScroll(t); +} + +// TODO alter this so that only the visible columns are redrawn +// TODO this means rename controlSize to clientRect +static void drawItem(struct table *t, HDC dc, intptr_t i, LONG y, LONG height, RECT controlSize) +{ + RECT rsel; + HBRUSH background; + int textColor; + WCHAR msg[100]; + RECT headeritem; + intptr_t j; + LRESULT xoff; + IMAGELISTDRAWPARAMS ip; + POINT pt; + + // TODO verify these two + background = (HBRUSH) (COLOR_WINDOW + 1); + textColor = COLOR_WINDOWTEXT; + if (t->selected == i) { + // these are the colors wine uses (http://source.winehq.org/source/dlls/comctl32/listview.c) + // the two for unfocused are also suggested by http://stackoverflow.com/questions/10428710/windows-forms-inactive-highlight-color + background = (HBRUSH) (COLOR_HIGHLIGHT + 1); + textColor = COLOR_HIGHLIGHTTEXT; + if (GetFocus() != t->hwnd) { + background = (HBRUSH) (COLOR_BTNFACE + 1); + textColor = COLOR_BTNTEXT; + } + } + + // first fill the selection rect + // note that this already only draws the visible area + rsel.left = controlSize.left; + rsel.top = y; + rsel.right = controlSize.right - controlSize.left; + rsel.bottom = y + height; + if (FillRect(dc, &rsel, background) == 0) + abort(); + + // TODO double-check to see if this takes any parameters + xoff = SendMessageW(t->header, HDM_GETBITMAPMARGIN, 0, 0); + // now adjust for horizontal scrolling + xoff -= t->hpos; + + // now draw the cells + if (SetTextColor(dc, GetSysColor(textColor)) == CLR_INVALID) + abort(); + if (SetBkMode(dc, TRANSPARENT) == 0) + abort(); + for (j = 0; j < t->nColumns; j++) { + if (SendMessageW(t->header, HDM_GETITEMRECT, (WPARAM) j, (LPARAM) (&headeritem)) == 0) + abort(); + switch (t->columnTypes[j]) { + case tableColumnText: + rsel.left = headeritem.left + xoff; + rsel.top = y; + rsel.right = headeritem.right; + 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(); + break; + case tableColumnImage: + // TODO vertically center if image is smaller than text height + // TODO same for checkboxes + ZeroMemory(&ip, sizeof (IMAGELISTDRAWPARAMS)); + ip.cbSize = sizeof (IMAGELISTDRAWPARAMS); + ip.himl = t->checkboxes;//t->imagelist; + ip.i = (i%8);//0; + ip.hdcDst = dc; + ip.x = headeritem.left + xoff; + ip.y = y; + ip.cx = 0; // draw whole image + ip.cy = 0; + ip.xBitmap = 0; + ip.yBitmap = 0; + ip.rgbBk = CLR_NONE; + ip.fStyle = ILD_NORMAL | ILD_SCALE; // TODO alpha-blend; ILD_DPISCALE? + // TODO ILS_ALPHA? + if (ImageList_DrawIndirect(&ip) == 0) + abort(); + break; + case tableColumnCheckbox: + // TODO + break; + } + if (t->selected == i && t->focusedColumn == j) { + rsel.left = headeritem.left; + rsel.top = y; + rsel.right = headeritem.right; + rsel.bottom = y + height; + if (DrawFocusRect(dc, &rsel) == 0) + abort(); + } + } +} + +static void drawItems(struct table *t, HDC dc, RECT cliprect) +{ + HFONT thisfont, prevfont; + LONG height; + LONG y; + intptr_t i; + RECT controlSize; // for filling the entire selected row + intptr_t first, last; + + 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(); + + // ignore anything beneath the header + if (cliprect.top < t->headerHeight) + cliprect.top = t->headerHeight; + // now let's pretend the header isn't there + // we only need it in (or rather, before) the drawItem() calls below + cliprect.top -= t->headerHeight; + cliprect.bottom -= t->headerHeight; + + // 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 + // we need to add t->firstVisible here because cliprect is relative to the visible area + first = (cliprect.top / height) + t->firstVisible; + if (first < 0) + first = 0; + last = lastVisible(t, cliprect, height); + + // now for the first y, discount firstVisible + y = (first - t->firstVisible) * height; + // and offset by the header height + y += t->headerHeight; + for (i = first; i < last; i++) { + drawItem(t, dc, i, y, height, controlSize); + y += height; + } + + // reset everything + if (SelectObject(dc, prevfont) != (HGDIOBJ) (thisfont)) + abort(); +} |