wmcube/wmapp/example1/window1.cc

   1 #include "../wmapp.h"
   2 #include "../wmwindow.h"
   3 #include "../wmframe.h"
   4 #include "../wmcanvas.h"
   5 #include "../wmbutton.h"
   6 #include "../wmellipse.h"
   7 #include "debian-tiny.xpm"
   8
   9 // This file creates a window with a small, very simple paint program.
  10
  11 // Define a class that will be a WMCanvas widget with callbacks
  12 class WMPainter : public WMCallback, public WMCanvas, public WMEllipse {
  13   public: WMPainter() : WMCallback(), WMCanvas() { }
  14 };
  15
  16 // Make one of the buttons elliptical.
  17 class WMEllipticalButton : public WMEllipse, public WMButton {
  18   public: WMEllipticalButton() : WMEllipse(), WMButton() { }
  19 };
  20
  21 // Callback to paint onto this widget when it's clicked on
  22 void
  23 paint(const WMApp *a, WMWidget *w, void *)
  24 {
  25   WMMouseClick click = a->mouseclick().b_relative_to(w);
  26   WMPainter *p = dynamic_cast<WMPainter *>(w);
  27   // draw a 3x3 square at the mouse location clicked upon
  28   if (p) p->fill_rectangle(click.x - 2, click.y - 2, 3, 3);
  29   a->repaint();
  30 }
  31
  32 // Callbacks for the buttons -----------------------------------------------
  33
  34 // This callback changes the current paint color of the WMCanvas, depending
  35 // upon which button was pressed.
  36 void
  37 changecolor(const WMApp *a, WMWidget *w, void *color)
  38 {
  39   WMColor::WMColor c = *static_cast<WMColor::WMColor *>(color);
  40   WMPainter *wp = dynamic_cast<WMPainter *>(w);
  41   if (wp) wp->setcolor(c);
  42 }
  43
  44 // This callback will be attached to the big button
  45 // on the second window.  It switches between windows.
  46 // Note: if the last statement in a callback function requests
  47 // a switch to a new window, you don't need a "repaint()".
  48 void
  49 switch_to_0(const WMApp *a, void *)
  50 { a->switch_to(0); }
  51
  52 void makewindow1(WMWindow *w1)
  53 {
  54   static WMEllipticalButton debianwin;
  55   static WMEllipticalButton colorbutton[4];
  56   static WMFrame top, topleft, bottom;
  57   static WMPainter drawing;
  58   static int colors[4] = { 0x000000, 0xFF0000, 0x00FF00, 0x0000FF };
  59
  60   w1->addchild(top);
  61   w1->addchild(bottom);
  62   w1->setorientation(Orientation::Vertical);
  63   w1->setaspectratios(1, 3);
  64
  65   top.addchild(topleft);
  66   top.addchild(debianwin);
  67   top.setaspectratios(4, 1);
  68
  69   topleft.setpadding(0);
  70   topleft.setborder(1);
  71   topleft.settransparency(false);
  72
  73   for (unsigned int i = 0; i < 4; i++) {
  74     colorbutton[i].setbgcolor(colors[i]);
  75     colorbutton[i].addcallback(changecolor, &drawing, colors + i);
  76     topleft.addchild(colorbutton[i]);
  77   }
  78
  79   debianwin.seticon(debian_tiny_xpm);
  80   debianwin.addcallback(switch_to_0, 0);
  81
  82   drawing.addcallback(paint, &drawing);
  83   bottom.addchild(drawing);
  84   drawing.setborder(4);
  85 }
  86