Merged wintable/new/ into wintable/.

1 files changed, 146 insertions, 0 deletions

diff --git a/wintable/draw.h b/wintable/draw.h
new file mode 100644
index 0000000..59a1ea1
--- /dev/null
+++ b/wintable/draw.h
@@ -0,0 +1,146 @@
+// 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;
+	int cbState;
+	RECT cellrect;
+
+	// TODO verify these two
+	background = (HBRUSH) (COLOR_WINDOW + 1);
+	textColor = COLOR_WINDOWTEXT;
+	if (t->selectedRow == p->row) {
+		// 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");
+	cellrect = r;		// save for drawing the focus rect
+
+	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);
+		cbState = 0;
+		if (p->row == lastCheckbox.row && p->column == lastCheckbox.column)
+			cbState |= checkboxStateChecked;
+		if (t->checkboxMouseDown)
+			if (p->row == t->checkboxMouseDownRow && p->column == t->checkboxMouseDownColumn)
+				cbState |= checkboxStatePushed;
+		if (t->checkboxMouseOverLast) {
+			pt.x = GET_X_LPARAM(t->checkboxMouseOverLastPoint);
+			pt.y = GET_Y_LPARAM(t->checkboxMouseOverLastPoint);
+			if (PtInRect(&r, pt) != 0)
+				cbState |= checkboxStateHot;
+		}
+		drawCheckbox(t, dc, &r, cbState);
+		break;
+	}
+
+	// TODO in front of or behind the cell contents?
+	if (t->selectedRow == p->row && t->selectedColumn == p->column)
+		if (DrawFocusRect(dc, &cellrect) == 0)
+			panic("error drawing focus rect on current Table cell");
+}
+
+// TODO use cliprect
+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;
+		if (p.y >= client.bottom)			// >= because RECT.bottom is the first pixel outside the rect
+			break;
+	}
+
+	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;
+}
+
+// TODO redraw selected row on focus change
+// TODO here or in select.h?