Imported widgettable.cxx from original Fl_Table widget test suite

as an FLTK example 'table-as-container.cxx'.



git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@7754 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

examples/Makefile

@@ -3,6 +3,7 @@ include ../makeinclude
 ALL = howto-add_fd-and-popen$(EXEEXT) \
       howto-parse-args$(EXEEXT) \
       howto-text-over-image-button$(EXEEXT) \
+      table-as-container$(EXEEXT) \
       table-with-keyboard-nav$(EXEEXT) \
       tabs-simple$(EXEEXT) \
       tree-simple$(EXEEXT) \

examples/table-as-container.cxx

@@ -0,0 +1,160 @@
+//
+// "$Id$"
+//
+// Show how FLTK widgets can be parented by Fl_Table.
+//
+// Copyright 1998-2005 by Bill Spitzak and others.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Library General Public License for more details.
+//
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+// USA.
+//
+// Please report all bugs and problems to:
+//
+//     http://www.fltk.org/str.php
+//
+
+#include <stdio.h>
+#include <FL/Fl.H>
+#include <FL/Fl_Double_Window.H>
+#include <FL/Fl_Light_Button.H>
+#include <FL/Fl_Input.H>
+#include <FL/fl_draw.H>
+#include <FL/Fl_Table.H>
+
+void button_cb(Fl_Widget *w, void*);
+
+//
+// Simple demonstration class deriving from Fl_Table
+//
+class WidgetTable : public Fl_Table {
+protected:
+  void draw_cell(TableContext context,  		// table cell drawing
+		 int R=0, int C=0, int X=0, int Y=0, int W=0, int H=0);
+
+public:
+  WidgetTable(int x, int y, int w, int h, const char *l=0) : Fl_Table(x,y,w,h,l) {
+    col_header(1);
+    col_resize(1);
+    col_header_height(25);
+    row_header(1);
+    row_resize(1);
+    row_header_width(80);
+    end();
+  }
+  ~WidgetTable() { }
+
+  void SetSize(int newrows, int newcols) {
+    rows(newrows);
+    cols(newcols);
+
+    begin();		// start adding widgets to group
+    {
+      for ( int r = 0; r<newrows; r++ ) {
+	for ( int c = 0; c<newcols; c++ ) {
+	  int X,Y,W,H;
+	  find_cell(CONTEXT_TABLE, r, c, X, Y, W, H);
+
+	  char s[40];
+	  if ( c & 1 ) {
+	    // Create the input widgets
+	    sprintf(s, "%d.%d", r, c);
+	    Fl_Input *in = new Fl_Input(X,Y,W,H);
+	    in->value(s);
+	  } else {
+	    // Create the light buttons
+	    sprintf(s, "%d/%d ", r, c);
+	    Fl_Light_Button *butt = new Fl_Light_Button(X,Y,W,H,strdup(s));
+	    butt->align(FL_ALIGN_CENTER|FL_ALIGN_INSIDE);
+	    butt->callback(button_cb, (void*)0);
+	    butt->value( ((r+c*2) & 4 ) ? 1 : 0);
+	  }
+	}
+      }
+    }
+    end();
+  }
+};
+
+// Handle drawing all cells in table
+void WidgetTable::draw_cell(TableContext context, 
+			  int R, int C, int X, int Y, int W, int H) {
+  switch ( context ) {
+    case CONTEXT_STARTPAGE:
+      fl_font(FL_HELVETICA, 12);		// font used by all headers
+      break;
+
+    case CONTEXT_RC_RESIZE: {
+      int X, Y, W, H;
+      int index = 0;
+      for ( int r = 0; r<rows(); r++ ) {
+	for ( int c = 0; c<cols(); c++ ) {
+	  if ( index >= children() ) break;
+	  find_cell(CONTEXT_TABLE, r, c, X, Y, W, H);
+	  child(index++)->resize(X,Y,W,H);
+	}
+      }
+      init_sizes();			// tell group children resized
+      return;
+    }
+
+    case CONTEXT_ROW_HEADER:
+      fl_push_clip(X, Y, W, H);
+      {
+	static char s[40];
+	sprintf(s, "Row %d", R);
+	fl_draw_box(FL_THIN_UP_BOX, X, Y, W, H, row_header_color());
+	fl_color(FL_BLACK);
+	fl_draw(s, X, Y, W, H, FL_ALIGN_CENTER);
+      }
+      fl_pop_clip();
+      return;
+
+    case CONTEXT_COL_HEADER:
+      fl_push_clip(X, Y, W, H);
+      {
+	static char s[40];
+	sprintf(s, "Column %d", C);
+	fl_draw_box(FL_THIN_UP_BOX, X, Y, W, H, col_header_color());
+	fl_color(FL_BLACK);
+	fl_draw(s, X, Y, W, H, FL_ALIGN_CENTER);
+      }
+      fl_pop_clip();
+      return;
+
+    case CONTEXT_CELL:
+      return;		// fltk handles drawing the widgets
+
+    default:
+      return;
+  }
+}
+
+void button_cb(Fl_Widget *w, void*) {
+  fprintf(stderr, "BUTTON: %s\n", (const char*)w->label());
+}
+
+int main() {
+  Fl_Double_Window win(940, 500, "table as container");
+  WidgetTable table(20, 20, win.w()-40, win.h()-40, "FLTK widget table");
+  table.SetSize(50, 50);
+  win.end();
+  win.resizable(table);
+  win.show();
+  return(Fl::run());
+}
+
+//
+// End of "$Id$".
+//