On Tuesday 18 October 2016 22:11:28 Krzysztof wrote: > Hi Martin, > > Long time :) . My last project was aborted (not due to MSE) so there was no > sense to continue porting from Lazarus. But I started new one and want to > make it on MSE from the beginning. > > Have questions about twidgetgrid: > > 1. Is it possible to make background and frame transparent? Basically only > scrollbars should be drawed normally, row selection and maybe grid lines. > I'm using it for tree purpose, only one column with ttreeitemedit. Tried > set color and face.fade.color0 to clTransparent but it didn't help. > Althought changing face.fade.color0 to any other standard color work. Just > want to show form which is underneath. I could trick that by setting color > same as form has.
The white background is drawn by frame.colorclient. Please set T*Grid.Frame.ColorClient to cl_transparent. Warning: Grids use window scrolling in order to optimise performance. So for example in order to show a new row on bottom the existing screen content will be shifted one row up and only the new row will be painted. This is wrong with visible background so T*Grid.OptionsWidget ow_noscroll must be set. > 2. I want to draw something on the right side of each tree item. Overrided > method ttreelistedititem.drawcell and looked how it is done in descendant: > > procedure TRootNode.drawcell(const acanvas: tcanvas); > var > po1: pcellinfoty; > layoutinfopo: plistitemlayoutinfoty; > begin > inherited drawcell(acanvas); > po1:= pcellinfoty(acanvas.drawinfopo); > layoutinfopo:= fowner.fintf.getlayoutinfo(po1); > > drawtext(acanvas,'abc',layoutinfopo^.captioninnerrect,[tf_ycentered,tf_righ >t]); end; > > But it is complain about "fintf" which is not published. " type tcustomitemlist1 = class(tcustomitemlist); procedure TRootNode.drawcell(const acanvas: tcanvas); var po1: pcellinfoty; layoutinfopo: plistitemlayoutinfoty; begin inherited drawcell(acanvas); po1:= pcellinfoty(acanvas.drawinfopo); layoutinfopo:= tcustomitemlist1(fowner).fintf.getlayoutinfo(po1); " git master 8e69c962a8988798ecd1602c590026776c549cff has a "getownerintf()" function for convenience. " layoutinfopo:= getownerintf.getlayoutinfo(po1); " > Is there other way > / function? Maybe overriding "drawimage()" is better. > Also, standard caption's draw should not draw on my extra text > so I need to decrease right edge in descendand draw somehow. Modify ` > captioninnerrect.cx` before "inherited drawcell;" line ? > Override "calcitemlayout()". Martin ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ mseide-msegui-talk mailing list mseide-msegui-talk@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mseide-msegui-talk
