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RE: [fltk.general] Getting text into the top-left "cell" in Fl_Table_Row

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RE: Getting text into the top-left "cell" in Fl_Table_Row "'Philip Rose' via fltk.general" Nov 30, 2020  
 

Thanks Greg,

 

What is the column number for the row headers?

 

Phil

 

Sent from Mail for Windows 10

 

From: Greg Ercolano
Sent: 30 November 2020 18:26
To: fltkgeneral@googlegroups.com
Subject: Re: [fltk.general] Getting text into the top-left "cell" in Fl_Table_Row

 

On 2020-11-30 08:17, 'pvr...@btinternet.com' via fltk.general wrote:

Hi,

 

I am extending Fl_Table_Row to display records in a database. I would like to add the column header of the [rows]. Is this possible?


    Sure, be sure to turn on col_header(1) and then in your draw_cell(), add your code to the CONTEXT_COL_HEADER section
    to draw the text inside the cell area for that column# (the XYWH and COL values passed to you for those values respectively).


I tried to draw the text in draw_cell in the CONTEXT_STARTPAGE and CONTEXT_ENDPAGE, but neither did what I wanted. All I wanted to add was "Record No." or similar.

    The "CONTEXT_XXXPAGE" sections are just for drawing something over the entire table like a background, floating text, or some such.
    This is because the XYWH values at that time will be for the entire table, not any particular row/column or cell, which you'd need to know
    to draw each column's header.

    I suggest looking at the examples/table-simple.cxx example program, and look at how the A/B/C/D.. column headers are drawn, e.g.

  void draw_cell(TableContext context, int ROW=0, int COL=0, int X=0, int Y=0, int W=0, int H=0) {
    [..]
    switch ( context ) {
      [..]
      case CONTEXT_COL_HEADER:                  // Draw column headers
        sprintf(s,"%c",'A'+COL);                // "A", "B", "C", etc.
        DrawHeader(s,X,Y,W,H);
        return;
        [..]

 

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