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// 8 december 2014
struct drawCellParams {
intptr_t row;
intptr_t column;
LONG x;
LONG y;
LONG width; // of column
LONG height; // rowHeight()
LRESULT xoff; // result of HDM_GETBITMAPMARGIN
};
static void drawCell(struct table *t, HDC dc, struct drawCellParams *p)
{
RECT r;
WCHAR msg[200];
int n;
HBRUSH background;
int textColor;
POINT pt;
// TODO verify these two
background = (HBRUSH) (COLOR_WINDOW + 1);
textColor = COLOR_WINDOWTEXT;
// TODO get rid of the selectedColumn bits
if (t->selectedRow == p->row && t->selectedColumn == p->column) {
// 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;
}
// TODO disabled
}
r.left = p->x;
r.right = p->x + p->width;
r.top = p->y;
r.bottom = p->y + p->height;
if (FillRect(dc, &r, background) == 0)
panic("error filling Table cell background");
switch (t->columnTypes[p->column]) {
case tableColumnText:
case tableColumnImage: // TODO
toCellContentRect(t, &r, p->xoff, 0, 0); // TODO get the text height
if (SetTextColor(dc, GetSysColor(textColor)) == CLR_INVALID)
panic("error setting Table cell text color");
if (SetBkMode(dc, TRANSPARENT) == 0)
panic("error setting transparent text drawing mode for Table cell");
n = wsprintf(msg, L"(%d,%d)", p->row, p->column);
if (DrawTextExW(dc, msg, n, &r, DT_END_ELLIPSIS | DT_LEFT | DT_NOPREFIX | DT_SINGLELINE, NULL) == 0)
panic("error drawing Table cell text");
break;
case tableColumnCheckbox:
toCheckboxRect(t, &r, p->xoff);
SetDCBrushColor(dc, RGB(255, 0, 0));
if (p->row == lastCheckbox.row && p->column == lastCheckbox.column)
SetDCBrushColor(dc, RGB(216, 0, 216));
if (t->checkboxMouseDown) {
if (p->row == t->checkboxMouseDownRow && p->column == t->checkboxMouseDownColumn)
SetDCBrushColor(dc, RGB(0, 0, 255));
} else if (t->checkboxMouseOverLast) { // TODO else?
pt.x = GET_X_LPARAM(t->checkboxMouseOverLastPoint);
pt.y = GET_Y_LPARAM(t->checkboxMouseOverLastPoint);
if (PtInRect(&r, pt) != 0)
SetDCBrushColor(dc, RGB(0, 255, 0));
}
FillRect(dc, &r, GetStockObject(DC_BRUSH));
break;
}
}
static void draw(struct table *t, HDC dc, RECT cliprect, RECT client)
{
intptr_t i, j;
int x = 0;
HFONT prevfont, newfont;
struct drawCellParams p;
prevfont = selectFont(t, dc, &newfont);
client.top += t->headerHeight;
ZeroMemory(&p, sizeof (struct drawCellParams));
p.height = rowHeight(t, dc, FALSE);
p.xoff = SendMessageW(t->header, HDM_GETBITMAPMARGIN, 0, 0);
p.y = client.top;
for (i = t->vscrollpos; i < t->count; i++) {
p.row = i;
p.x = client.left - t->hscrollpos;
for (j = 0; j < t->nColumns; j++) {
p.column = j;
p.width = columnWidth(t, p.column);
drawCell(t, dc, &p);
p.x += p.width;
}
p.y += p.height;
}
deselectFont(dc, prevfont, newfont);
}
HANDLER(drawHandlers)
{
HDC dc;
PAINTSTRUCT ps;
RECT client;
RECT r;
if (uMsg != WM_PAINT && uMsg != WM_PRINTCLIENT)
return FALSE;
if (GetClientRect(t->hwnd, &client) == 0)
panic("error getting client rect for Table painting");
if (uMsg == WM_PAINT) {
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 (uMsg == WM_PAINT)
EndPaint(t->hwnd, &ps);
// this is correct for WM_PRINTCLIENT; see http://stackoverflow.com/a/27362258/3408572
*lResult = 0;
return TRUE;
}
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