actionicon.cc

模糊聚类分析的源程序！

//**************************************************************
//*   filename: actionicon.cc                                  *
//*                                                            *
//**************************************************************
//* programmed by: Thomas Wagner                               *
//* last change: 23-05-95 (XXX: not updated)                   *
//**************************************************************
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "actionicon.h"

extern unsigned long
  buttonpix, whitepix, blackpix, shadowpix, lightpix, selectpix;
extern Cursor movestartcursor, moveendcursor, delconnectcursor, maincursor,
  waitcursor, createstartcursor;


ActionIcon::ActionIcon (Display * initdisplay,
	    GC initgc,
	    BigWindow * initParentWindow,
	    XFontStruct * fontstruct,
	    int initx, int inity, int initwidth, int initheight,
	    char *inittext,
	    char *bmptext,
	    short bmpwidth, short bmpheight,
	    int initactionnumber,
	    unsigned short initstatus):
Icon (initdisplay,
      initgc,
      initParentWindow->GetWindow (),
      fontstruct,
      initx, inity,
      initwidth, initheight,
      inittext,
      bmptext,
      bmpwidth, bmpheight,
      ACTIONICON_BDWIDTH,
      initstatus)
{
  actionnumber = initactionnumber;
  ParentWindow = initParentWindow;

  short textx, texty;
  textx = (int) ((width - XTextWidth (fontstruct, text, strlen (text))) * .5);
  texty = (int) ((height + fontstruct->max_bounds.ascent +
     fontstruct->max_bounds.descent) * .5 - fontstruct->max_bounds.descent);

  XSetForeground (display, gc, buttonpix);
  XSetBackground (display, gc, buttonpix);
  XFillRectangle (display, pixmap_up, gc, 0, 0, width, height);
  XFillRectangle (display, pixmap_down, gc, 0, 0, width, height);

  DrawBorder (pixmap_up, 0, 0,
	      width, height, textx, texty, text, HIGH);
  DrawBorder (pixmap_down, 0, 0,
	      width, height, textx, texty, text, LOW);

  if (bmp != 0) {
    if (status & ICON_SELECTABLE)
      XSetForeground (display, gc, blackpix);
    else
      XSetForeground (display, gc, shadowpix);

    XCopyPlane (display, bmp, pixmap_up, gc, 0, 0, bmp_width, bmp_height,
    (int) ((width - bmp_width) * .5), (int) ((height - bmp_height) * .5), 1);
    XCopyPlane (display, bmp, pixmap_down, gc, 0, 0, bmp_width, bmp_height,
    (int) ((width - bmp_width) * .5), (int) ((height - bmp_height) * .5), 1);
  }
  SetSelectedInput (ExposureMask |
		    ButtonPressMask |
		    ButtonReleaseMask |
		    FocusChangeMask |
		    LeaveWindowMask |
		    EnterWindowMask);
  MapMe ();
};

ActionIcon::~ActionIcon ()
{
  UnmapMe ();
}

void 
ActionIcon::HandleEvent (XEvent * Event)
{
  switch (Event->type) {
  case Expose:
    if (Event->xexpose.count == 0)
      DrawIcon (status);
    break;

  case ButtonPress:
    switch (Event->xbutton.button) {
    case Button1:
      if (status & ICON_SELECTABLE) {
	DrawIcon (ICON_SELECTED);
	status |= ICON_SELECTED;
      } else
	XBell (display, 100);
      break;

    case Button2:
      if ((status & ICON_SELECTABLE) &&
	  (status & ICON_REPEATEDCLICK)) {
	XGrabPointer (display,
		      window,
		      TRUE,
		      0,
		      GrabModeAsync,
		      GrabModeAsync,
		      window,
		      maincursor,
		      CurrentTime);

	DrawIcon (ICON_SELECTED);
	status |= ICON_SELECTED;
	status |= ICON_REPEATSELECTED;
// create FocusIn-Event
	XSetInputFocus (display, DefaultRootWindow (display), RevertToNone, CurrentTime);
	XSetInputFocus (display, window, RevertToNone, CurrentTime);
      } else
	XBell (display, 100);
      break;
    }
    break;

  case FocusIn:		// used to create repeated clicks

    if ((status & ICON_SELECTED) &&
	(status & ICON_REPEATEDCLICK)) {
      ParentWindow->Action (actionnumber, 0);
// create FocusIn-Event
      XSetInputFocus (display, DefaultRootWindow (display), RevertToNone, CurrentTime);
      XSetInputFocus (display, window, RevertToNone, CurrentTime);
    }
    break;

  case ButtonRelease:
    XUngrabPointer (display, CurrentTime);
    if (status & ICON_SELECTED) {
      if (status & ICON_SELECTABLE) {
	if (Event->xbutton.x <= width &&
	    Event->xbutton.y <= height &&
	    Event->xbutton.y >= -DEFAULT_BDWIDTH &&
	    Event->xbutton.x >= -DEFAULT_BDWIDTH) {
	  DrawIcon (~ICON_SELECTED);
	  status &= ~ICON_SELECTED;
	  if (Event->xbutton.button == Button1)
	    ParentWindow->Action (actionnumber, 0);
	}
      }
      if (Event->xbutton.button == Button2)
	status &= ~ICON_REPEATSELECTED;
      status &= ~ICON_SELECTED;
    }
    break;

  case EnterNotify:
    if (status & ICON_SELECTED)
      DrawIcon (ICON_SELECTED);
    if ((status & ICON_REPEATEDCLICK) &&
	(status & ICON_REPEATSELECTED))
      XSetInputFocus (display, window, RevertToNone, CurrentTime);
    break;

  case LeaveNotify:
    if (status & ICON_SELECTED)
      DrawIcon (~ICON_SELECTED);
    if (status & ICON_REPEATEDCLICK)
      XSetInputFocus (display, DefaultRootWindow (display), RevertToNone, CurrentTime);
    break;
  }
}