#define MARGIN  14
#define WINWIDTH 300
#define WINHEIGHT 400

Display *display;
WMScreen *screen;

WMWindow *win;
WMSize ButtonsetSize;

WMText *text;
WMColor *color;
WMFrame *controlframe;


void closeAll(WMWidget *self, void *data)
{
  WMDestroyWidget(self);
  fprintf(stderr, "I've been used!\n");
  exit(0);
}

static void selectFiles(void *self, void *data)
{
     int i = 0;
     WMOpenPanel *oPanel;

     oPanel = WMGetOpenPanel(screen);
     if (WMRunModalFilePanelForDirectory(oPanel, NULL, "/tmp",
                                         "Search..", NULL) == True) {
          char textbuf[40];

          snprintf(textbuf, sizeof(textbuf), "%s\n-", WMGetFilePanelFileName(oPanel));
          WMFreezeText(text);
          WMAppendTextStream(text, textbuf);
          WMThawText(text);
     }
     return;
}

static void handleEvents(XEvent *event, void *data)
{
  char textbuf[40];
  WMWidget *widget = (WMWidget*) data;

  switch (event->type) {
  case ButtonPress:
    snprintf(textbuf, sizeof(textbuf), "Button down at (%i,%i) \n-",
             event->xbutton.x, event->xbutton.y);
    WMFreezeText(text);
    WMAppendTextStream(text, textbuf);
    WMThawText(text);
    break;
  }
}

static void resizeHandler(void *self, WMNotification *notif)
{
     WMSize size = WMGetViewSize(WMWidgetView(win));   
     WMMoveWidget(controlframe, size.width-ButtonsetSize.width, size.height-ButtonsetSize.height);
     WMResizeWidget(text, size.width - MARGIN - 10, size.height - 80);
}


int main(int argc, char **argv)
{
   WMButton *Button;

   WMInitializeApplication("FifthWindow", &argc, argv);
   display = XOpenDisplay("");
   if (!display) {
     fprintf(stderr, "err: cannot open display");
     exit(1);
   }
   screen = WMCreateScreen(display, DefaultScreen(display));

      /*    window    */
   win = WMCreateWindow(screen, "");
   WMResizeWidget(win, WINWIDTH, WINHEIGHT);
   WMSetWindowCloseAction(win, closeAll, NULL);
   WMCreateEventHandler(WMWidgetView(win), ButtonPressMask, handleEvents, win);
   color = WMCreateRGBColor(screen, 124<<9, 206<<8, 162<<8, False);
   WMSetWidgetBackgroundColor((WMWidget *)win, color);
   WMSetViewNotifySizeChanges(WMWidgetView(win), True);
   WMAddNotificationObserver(resizeHandler, NULL, WMViewSizeDidChangeNotification, WMWidgetView(win));

        /* Text area */

    text = WMCreateText(win);
    WMResizeWidget(text, WINWIDTH - MARGIN, WINHEIGHT - 80);
    WMMoveWidget(text, 10, 10);
    WMSetTextHasVerticalScroller(text, True);
    WMSetTextEditable(text, False);
  
       /* frame and two buttons */
	
   controlframe = WMCreateFrame(win);
   WMSetWidgetBackgroundColor((WMWidget *)controlframe, color);
   WMSetFrameRelief(controlframe, WRFlat);

   Button = WMCreateButton(controlframe, WBTMomentaryPush);
   WMSetWidgetBackgroundColor((WMWidget *)Button, color);
   WMSetButtonText(Button, "Files");
   WMSetButtonAction(Button, selectFiles, NULL);
   ButtonsetSize = WMGetViewSize(WMWidgetView(Button));       
   WMMoveWidget(Button, MARGIN, MARGIN);
 
   Button = WMCreateButton(controlframe, WBTMomentaryPush);
   WMSetWidgetBackgroundColor((WMWidget *)Button, color);
   WMSetButtonText(Button, "Quit");
   WMSetButtonAction(Button, closeAll, NULL);
   WMMoveWidget(Button, 2*MARGIN + ButtonsetSize.width, MARGIN);
   ButtonsetSize.width  = 3*MARGIN + 2*ButtonsetSize.width;
   ButtonsetSize.height = 2*MARGIN + ButtonsetSize.height;
   WMResizeWidget(controlframe, ButtonsetSize.width, ButtonsetSize.height);
  
   WMMapSubwidgets(controlframe);
   resizeHandler(NULL,NULL);

     /* end of frame and buttons setup */

   WMMapSubwidgets(win);
   WMMapWidget(win);
   WMRealizeWidget(win);

   WMScreenMainLoop(screen);

   return 0;
}