examples/table-simple.cxx

   1 //
   2 // "$Id: table-simple.cxx 8220 2011-01-08 18:41:47Z greg.ercolano $"
   3 //
   4 //    Simple example of using Fl_Table - Greg Ercolano 11/29/2010
   5 //
   6 //    Demonstrates the simplest use of Fl_Table possible.
   7 //    Display a 10x10 array of integers with row/col headers.
   8 //    No interaction; simple display of data only.
   9 //    See other examples for more complex interactions with the table.
  10 //
  11 // Copyright 2010 Greg Ercolano.
  12 // Copyright 1998-2010 by Bill Spitzak and others.
  13 //
  14 // This library is free software; you can redistribute it and/or
  15 // modify it under the terms of the GNU Library General Public
  16 // License as published by the Free Software Foundation; either
  17 // version 2 of the License, or (at your option) any later version.
  18 //
  19 // This library is distributed in the hope that it will be useful,
  20 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  21 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  22 // Library General Public License for more details.
  23 //
  24 // You should have received a copy of the GNU Library General Public
  25 // License along with this library; if not, write to the Free Software
  26 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  27 // USA.
  28 //
  29 // Please report all bugs and problems on the following page:
  30 //
  31 //     http://www.fltk.org/str.php
  32 //
  33 #include <FL/Fl.H>
  34 #include <FL/Fl_Double_Window.H>
  35 #include <FL/Fl_Table.H>
  36 #include <FL/fl_draw.H>
  37
  38 #define MAX_ROWS 30
  39 #define MAX_COLS 30
  40
  41 // Derive a class from Fl_Table
  42 class MyTable : public Fl_Table {
  43
  44   int data[MAX_ROWS][MAX_COLS];         // data array for cells
  45
  46   // Draw the row/col headings
  47   //    Make this a dark thin upbox with the text inside.
  48   //
  49   void DrawHeader(const char *s, int X, int Y, int W, int H) {
  50     fl_push_clip(X,Y,W,H);
  51       fl_draw_box(FL_THIN_UP_BOX, X,Y,W,H, row_header_color());
  52       fl_color(FL_BLACK);
  53       fl_draw(s, X,Y,W,H, FL_ALIGN_CENTER);
  54     fl_pop_clip();
  55   }
  56   // Draw the cell data
  57   //    Dark gray text on white background with subtle border
  58   //
  59   void DrawData(const char *s, int X, int Y, int W, int H) {
  60     fl_push_clip(X,Y,W,H);
  61       // Draw cell bg
  62       fl_color(FL_WHITE); fl_rectf(X,Y,W,H);
  63       // Draw cell data
  64       fl_color(FL_GRAY0); fl_draw(s, X,Y,W,H, FL_ALIGN_CENTER);
  65       // Draw box border
  66       fl_color(color()); fl_rect(X,Y,W,H);
  67     fl_pop_clip();
  68   }
  69   // Handle drawing table's cells
  70   //     Fl_Table calls this function to draw each visible cell in the table.
  71   //     It's up to us to use FLTK's drawing functions to draw the cells the way we want.
  72   //
  73   void draw_cell(TableContext context, int ROW=0, int COL=0, int X=0, int Y=0, int W=0, int H=0) {
  74     static char s[40];
  75     switch ( context ) {
  76       case CONTEXT_STARTPAGE:                   // before page is drawn..
  77         fl_font(FL_HELVETICA, 16);              // set the font for our drawing operations
  78         return;
  79       case CONTEXT_COL_HEADER:                  // Draw column headers
  80         sprintf(s,"%c",'A'+COL);                // "A", "B", "C", etc.
  81         DrawHeader(s,X,Y,W,H);
  82         return;
  83       case CONTEXT_ROW_HEADER:                  // Draw row headers
  84         sprintf(s,"%03d:",ROW);                 // "001:", "002:", etc
  85         DrawHeader(s,X,Y,W,H);
  86         return;
  87       case CONTEXT_CELL:                        // Draw data in cells
  88         sprintf(s,"%d",data[ROW][COL]);
  89         DrawData(s,X,Y,W,H);
  90         return;
  91       default:
  92         return;
  93     }
  94   }
  95 public:
  96   // Constructor
  97   //     Make our data array, and initialize the table options.
  98   //
  99   MyTable(int X, int Y, int W, int H, const char *L=0) : Fl_Table(X,Y,W,H,L) {
 100     // Fill data array
 101     for ( int r=0; r<MAX_ROWS; r++ )
 102       for ( int c=0; c<MAX_COLS; c++ )
 103         data[r][c] = 1000+(r*1000)+c;
 104     // Rows
 105     rows(MAX_ROWS);             // how many rows
 106     row_header(1);              // enable row headers (along left)
 107     row_height_all(20);         // default height of rows
 108     row_resize(0);              // disable row resizing
 109     // Cols
 110     cols(MAX_COLS);             // how many columns
 111     col_header(1);              // enable column headers (along top)
 112     col_width_all(80);          // default width of columns
 113     col_resize(1);              // enable column resizing
 114     end();                      // end the Fl_Table group
 115   }
 116   ~MyTable() { }
 117 };
 118
 119 int main(int argc, char **argv) {
 120   Fl_Double_Window win(900, 400, "Simple Table");
 121   MyTable table(10,10,880,380);
 122   win.end();
 123   win.resizable(table);
 124   win.show(argc,argv);
 125   return(Fl::run());
 126 }
 127
 128 //
 129 // End of "$Id: table-simple.cxx 8220 2011-01-08 18:41:47Z greg.ercolano $".
 130 //