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Re: Chamelon progress.... [message #4047 is a reply to message #3950]

Tue, 18 July 2006 12:43

unodgs
Messages: 1367
Registered: November 2005
Location: Poland

Ultimate Contributor

unodgs wrote on Mon, 10 July 2006 15:33

Thanks Mirek! I'll try it with all themes I've got.

The "new system" seem to work fine with all themes I've tried so far.

But I have one feature request to the chameleon. More advanced version of ChPaint:

ChPaint(Draw, x, y, cx, cy, Value, offsetx = 0, offsety = 0, mode = STRETCH_BOTH)

where mode can be one of following:

NO_STRETCH = 0
STRETCH_X = 0x2
STRETCH_Y = 0x4
STRETCH_BOTH = STRETCH_X | STRETCH_Y (default)

offsetX/Y means that if ones are given the ChPaint should stretch or just paint (if no stretch mode is passed) the internal bitmap with first pixels omitted in x by offsetx and in y by offsety. In stretch mode that skipped pixels should not be stretched.

I need it because I have to paint header in my gridctrl a little bit different. In arrayctrl header is always refreshed as a whole even during scrolling. In my grid I repaint only the invalidate area and I also check if cell of header should be painted using IsPainting routine. So I now use a code like this to paint header cell
(case if HeaderTabGridAdjustment() is positive)
ht = HeaderTabGridAdjustment()
ChPaint(w, x - ht, y, cx - ht, cy, HeaderTabLook(q))
ChPaint(w, x + cx - ht, y, ht, cy, HeaderTabLook(q))

The problem lies in second call of ChPaint. It dosn't paint left border of header because ht is too small and result of stretching for this size is a bitmap without left border (it was eaten during resizeing,
see screenshot - result of code:

		
w.DrawRect(GetSize(), White);		
w.DrawRect(5, 5, 100, 100, LtGreen);
int ht = HeaderTabGridAdjustment();			
int q = CTRL_NORMAL;
ChPaint(w, 6, 6, 50, 18, HeaderTabLook(q));
ChPaint(w, 6, 30, 1, 18, HeaderTabLook(q));

)).

With new ChPaint I could write it like this:

ChPaint(w, x, y, cx - ht, cy, HeaderTabLook(q), ht, 0, STRETCH_BOTH)
ChPaint(w, x + cx - ht, y, ht, cy, HeaderTabLook(q), 0, 0, STRETCH_Y)

Is that extension to ChPaint possible to add??

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