Then redirect cout to a file and turn off buffering of cout.
> In order to learn the fox toolkit I decided to write a sudoku game.
> It's not complete yet, but so far does what's expected of it except
> for some confusing problems.
>
>
> When first started up it outputs to the console the following errors:
>
>
> X Error: code 9 major 152 minor 4: BadDrawable (invalid Pixmap or
> Window parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 23: RenderBadPicture (invalid
> Picture parameter).
> X Error: code 170 major 152 minor 7: RenderBadPicture (invalid Picture
> parameter).
>
>
>
> I suspect these have something to do with the font resizing on the
> server, but I'm not sure what to do about it. When the app is
> resized, these errors are repeated and the canvas widget goes blank
> except for the background and the lines drawn to make the board.
> Doing things like passing another window over it will restore those
> parts which shouldn't be blank and doing anything which causes a
> canvas update restores the whole thing.
>
>
> Also, the flush left "renderAll= true;" in the method layoutBuffer was
> necessary in order to have the canvas update restore everything. I
> would much prefer to have only the dirty bits repainted as oulined in
> the FAQ about back-buffered widgets.
>
>
> I have learned much from the docs, FAQs and mailing list archives, but
> obviously am missing some basic understanding of the repainting
> process. Whenever I try to include a layout() method as suggested in
> the FAQ, things go really bad with the canvas always remaining grey
> and even the menus not getting painted.
>
>
> The full source is attached, but here are the bits which I would
> expect to be relevant. I am using fox 1.6.35 and gcc 4.4.0 Any help
> would be appreciated.
>
>
> Mike
>
>
> ---
>
>
>
> FXMAPFUNC(SEL_PAINT, sudokuWindow::ID_CANVAS,
> sudokuWindow::onPaint),
>
>
>
> ---
>
>
> long sudokuWindow::onPaint(FXObject *, FXSelector, void *ptr)
> {
> FXEvent *ev = (FXEvent *)ptr;
> layoutBuffer();
> FXDCWindow dc(canvas,ev);
> dc.drawImage(dbuf,0,0);
> return 1;
> }
>
>
>
> ---
>
>
> void sudokuWindow::layoutBuffer()
> {
> FXDCWindow dc(dbuf);
> // builds the game board from the ground up
> int w= canvas->getWidth();
> int h= canvas->getHeight();
> int h9= h/9; int w9= w/9;
> if (lastw != w || lasth != h || font==NULL)
> {
> renderAll= true; // resizing means repaint all
> dbuf->resize(w,h);
> lastw= w; lasth= h;
> // simple guess for proper font size that works well
> int fs=h9/2;
> if (fs != fontSize)
> {
> fontSize= fs;
> if (font!=NULL)
> {
> font->destroy();
> delete font;
> }
> font= new FXFont(getApp(),"times",fs);
> font->create();
> }
> // now for the hint font
> fs=h9/5;
> if (fs != hfontSize)
> {
> hfontSize= fs;
> if (hfont!=NULL) delete hfont;
> hfont= new FXFont(getApp(),"times",fs);
> hfont->create();
> }
> }
> renderAll=true;
> if (renderAll)
> {
> dc.setForeground(bgColor);
> dc.fillRectangle(0,0,w,h);
> }
> for (int i=0; i<81; ++i)
> {
> if (renderAll || dirty[i] || board[i].error)
> {
> int x= i%9; int y=i/9;
> int w9= dbuf->getWidth()/9;
> int h9= dbuf->getHeight()/9;
> // correct for extra space in last row/column
> int w= x==8? dbuf->getWidth()-8*w9 : w9;
> int h= y==8? dbuf->getHeight()-8*h9 : h9;
>
> // refresh background
> if (i==cursor) dc.setForeground(curColor);
> else dc.setForeground(bgColor);
> dc.fillRectangle(x*w9,y*h9,w,h);
> int v= board[i].val;
> if (v>0) // square has been solved show number
> {
> dc.setFont(font);
> string text; text.append(1,'0'+v);
> int xpos= w9*x+w/2-font->getCharWidth('0'+v)/2;
> int ypos= h9*y+h/2+h9/4;
> if (board[i].error) dc.setForeground(errorColor);
> else dc.setForeground(fgColor);
> dc.drawText(xpos,ypos,text.c_str() );
> }
> else // square not solved show hints
> if (allhints || (curshints && i==cursor) )
> {
> dc.setFont(hfont);
> dc.setForeground(hintColor);
> set<int>::const_iterator it;
> for (it=board[i].possible.begin(); it!
> =board[i].possible.end(); ++it)
> {
> int v= *it;
> string text; text.append(1,'0'+v);
> int fw= hfont->getCharWidth('0'+v)/2;
> int xpos= (x*w9)+2*w/10+((v-1)%3)*3*w/10-fw;
> int ypos= (y*h9)+3*h/10+((v-1)/3)*3*h/10;
> dc.drawText(xpos,ypos,text.c_str() );
> }
> }
> }
> if (board[i].error) dirty[i]= true;
> else dirty[i]= false;
> }
> if (renderAll)
> {
> dc.setForeground(fgColor);
> for (int i=1; i<9; ++i)
> {
> if ( i%3==0 ) dc.setLineWidth(3);
> else dc.setLineWidth(1);
> dc.drawLine(i*w9,0,i*w9,h);
> dc.drawLine(0,i*h9,w,i*h9);
> }
> }
> renderAll= false;
> }
>
>
>
>
>
> ------------------------------------------------------------------------------
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sudoku-0.1.tar.gz (130K) 
