test/scroll.cxx

   1 //
   2 // "$Id: scroll.cxx 7978 2010-12-08 14:00:35Z AlbrechtS $"
   3 //
   4 // Fl_Scroll test program for the Fast Light Tool Kit (FLTK).
   5 //
   6 // Copyright 1998-2010 by Bill Spitzak and others.
   7 //
   8 // This library is free software; you can redistribute it and/or
   9 // modify it under the terms of the GNU Library General Public
  10 // License as published by the Free Software Foundation; either
  11 // version 2 of the License, or (at your option) any later version.
  12 //
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 // Library General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU Library General Public
  19 // License along with this library; if not, write to the Free Software
  20 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  21 // USA.
  22 //
  23 // Please report all bugs and problems on the following page:
  24 //
  25 //     http://www.fltk.org/str.php
  26 //
  27
  28 #include <FL/Fl.H>
  29 #include <FL/Fl_Double_Window.H>
  30 #include <FL/Fl_Scroll.H>
  31 #include <FL/Fl_Light_Button.H>
  32 #include <FL/Fl_Choice.H>
  33 #include <FL/Fl_Box.H>
  34 #include <string.h>
  35 #include <stdio.h>
  36 #include <FL/fl_draw.H>
  37 #include <FL/math.h>
  38
  39 class Drawing : public Fl_Widget {
  40   void draw();
  41 public:
  42   Drawing(int X,int Y,int W,int H,const char* L) : Fl_Widget(X,Y,W,H,L) {
  43     align(FL_ALIGN_TOP);
  44     box(FL_FLAT_BOX);
  45     color(FL_WHITE);
  46   }
  47 };
  48
  49 void Drawing::draw() {
  50   draw_box();
  51   fl_push_matrix();
  52   fl_translate(x()+w()/2, y()+h()/2);
  53   fl_scale(w()/2, h()/2);
  54   fl_color(FL_BLACK);
  55   for (int i = 0; i < 20; i++) {
  56     for (int j = i+1; j < 20; j++) {
  57       fl_begin_line();
  58       fl_vertex(cos(M_PI*i/10+.1), sin(M_PI*i/10+.1));
  59       fl_vertex(cos(M_PI*j/10+.1), sin(M_PI*j/10+.1));
  60       fl_end_line();
  61     }
  62   }
  63   fl_pop_matrix();
  64 }
  65
  66 Fl_Scroll* thescroll;
  67
  68 void box_cb(Fl_Widget* o, void*) {
  69   thescroll->box(((Fl_Button*)o)->value() ? FL_DOWN_FRAME : FL_NO_BOX);
  70   thescroll->redraw();
  71 }
  72
  73 void type_cb(Fl_Widget*, void* v) {
  74   thescroll->type((uchar)((fl_intptr_t)v));
  75   thescroll->redraw();
  76 }
  77
  78 Fl_Menu_Item choices[] = {
  79   {"0", 0, type_cb, (void*)0},
  80   {"HORIZONTAL", 0, type_cb, (void*)Fl_Scroll::HORIZONTAL},
  81   {"VERTICAL", 0, type_cb, (void*)Fl_Scroll::VERTICAL},
  82   {"BOTH", 0, type_cb, (void*)Fl_Scroll::BOTH},
  83   {"HORIZONTAL_ALWAYS", 0, type_cb, (void*)Fl_Scroll::HORIZONTAL_ALWAYS},
  84   {"VERTICAL_ALWAYS", 0, type_cb, (void*)Fl_Scroll::VERTICAL_ALWAYS},
  85   {"BOTH_ALWAYS", 0, type_cb, (void*)Fl_Scroll::BOTH_ALWAYS},
  86   {0}
  87 };
  88
  89 void align_cb(Fl_Widget*, void* v) {
  90   thescroll->scrollbar.align((uchar)((fl_intptr_t)v));
  91   thescroll->redraw();
  92 }
  93
  94 Fl_Menu_Item align_choices[] = {
  95   {"left+top", 0, align_cb, (void*)(FL_ALIGN_LEFT+FL_ALIGN_TOP)},
  96   {"left+bottom", 0, align_cb, (void*)(FL_ALIGN_LEFT+FL_ALIGN_BOTTOM)},
  97   {"right+top", 0, align_cb, (void*)(FL_ALIGN_RIGHT+FL_ALIGN_TOP)},
  98   {"right+bottom", 0, align_cb, (void*)(FL_ALIGN_RIGHT+FL_ALIGN_BOTTOM)},
  99   {0}
 100 };
 101
 102 int main(int argc, char** argv) {
 103   Fl_Window window(5*75,400);
 104   window.box(FL_NO_BOX);
 105   Fl_Scroll scroll(0,0,5*75,300);
 106
 107   int n = 0;
 108   for (int y=0; y<16; y++) for (int x=0; x<5; x++) {
 109     char buf[20]; sprintf(buf,"%d",n++);
 110     Fl_Button* b = new Fl_Button(x*75,y*25+(y>=8?5*75:0),75,25);
 111     b->copy_label(buf);
 112     b->color(n);
 113     b->labelcolor(FL_WHITE);
 114   }
 115   Drawing drawing(0,8*25,5*75,5*75,0);
 116   scroll.end();
 117   window.resizable(scroll);
 118
 119   Fl_Box box(0,300,5*75,window.h()-300); // gray area below the scroll
 120   box.box(FL_FLAT_BOX);
 121
 122   Fl_Light_Button but1(150, 310, 200, 25, "box");
 123   but1.callback(box_cb);
 124
 125   Fl_Choice choice(150, 335, 200, 25, "type():");
 126   choice.menu(choices);
 127   choice.value(3);
 128
 129   Fl_Choice achoice(150, 360, 200, 25, "scrollbar.align():");
 130   achoice.menu(align_choices);
 131   achoice.value(3);
 132
 133   thescroll = &scroll;
 134
 135   //scroll.box(FL_DOWN_BOX);
 136   //scroll.type(Fl_Scroll::VERTICAL);
 137   window.end();
 138   window.show(argc,argv);
 139   return Fl::run();
 140 }
 141
 142 //
 143 // End of "$Id: scroll.cxx 7978 2010-12-08 14:00:35Z AlbrechtS $".
 144 //