dialog.cc

UNIX下使用的基于模糊Ｃ聚类分析的原码

//**************************************************************
//*   filename: dialog.cc                                      *
//*                                                            *
//**************************************************************
//* programmed by: Thomas Wagner                               *
//* last change: 15-05-95                                      *
//**************************************************************
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "dialog.h"

extern unsigned long buttonpix, blackpix, whitepix, shadowpix, lightpix;
extern Cursor maincursor;

Dialog::Dialog (Display * initdisplay,
	GC initgc,
	BigWindow * parent,
	XFontStruct * fontstruct,
	int initx, int inity,
	int initwidth, int initheight,
	char *inittext,
	unsigned short initoptions,
	int Actionnumber):
BigWindow (initdisplay,
	   initgc,
	   DefaultRootWindow (initdisplay),
	   fontstruct,
	   initx, inity,
	   initwidth, initheight,
	   inittext,
	   DEFAULT_BDWIDTH)
{
  Parent = parent;
  actionnumber = Actionnumber;

  width = MAX (XTextWidth (fontstruct, text, strlen (text)) + 2 * DIALOGBORDER, width);

  short allbuttonswidth = 2 * DIALOGBORDER, buttonnumber = 0, buttonwidth = 40;
  if (initoptions & DISPLAY_YES) {
    Yes = new ActionIcon (display,
			  gc,
			  this,
			  fontstruct,
			  35, 40, buttonwidth, 30,
			  "Yes", NULL, 0, 0,
			  DIALOG_YES_ACTION, ICON_SELECTABLE);
    buttonnumber++;
  } else
    Yes = NULL;

  if (initoptions & DISPLAY_NO) {
    No = new ActionIcon (display,
			 gc,
			 this,
			 fontstruct,
			 105, 40, buttonwidth, 30,
			 "No", NULL, 0, 0,
			 DIALOG_NO_ACTION, ICON_SELECTABLE);
    buttonnumber++;
  } else
    No = NULL;

  if (initoptions & DISPLAY_CANCEL) {
    Cancel = new ActionIcon (display,
			     gc,
			     this,
			     fontstruct,
			     105, 40, buttonwidth, 30,
			     "Cancel", NULL, 0, 0,
			     DIALOG_CANCEL_ACTION, ICON_SELECTABLE);
    buttonnumber++;
  } else
    Cancel = NULL;

  allbuttonswidth += ((buttonnumber * 2) - 1) * buttonwidth;
  width = MAX (width, allbuttonswidth);

  SizeMe (width, height);
  short depth, textx, texty;
  textx = (int) ((width - XTextWidth (fontstruct, text, strlen (text))) * .5);
  texty = fontstruct->max_bounds.ascent + fontstruct->max_bounds.descent + 10;
  depth = DefaultDepth (display, DefaultScreen (display));
  pixmap = XCreatePixmap (display, window, width, height, depth);

  XSetForeground (display, gc, buttonpix);
  XFillRectangle (display, pixmap, gc, 0, 0, width, height);
  DrawBorder (pixmap, HIGH);
  XSetForeground (display, gc, blackpix);
  XDrawString (display, pixmap, gc, textx, texty, text, strlen (text));
  FixMySize ();

// last place all icons
  short leftpos = (width - allbuttonswidth) / 2;
  if (Yes != NULL) {
    Yes->PlaceMe (leftpos, Yes->Gety ());
    leftpos += 2 * buttonwidth;
  }
  if (No != NULL) {
    No->PlaceMe (leftpos, No->Gety ());
    leftpos += 2 * buttonwidth;
  }
  if (Cancel != NULL)
    Cancel->PlaceMe (leftpos, Cancel->Gety ());

  SetSelectedInput (ExposureMask | StructureNotifyMask);
}

void 
Dialog::Action (int Actionnumber, int value)
{
  UnmapMe ();
  Parent->Action (actionnumber, Actionnumber);
#if 0
  /* XXX: would you believe this ??? */
  delete this;
#endif
}

void 
Dialog::HandleEvent (XEvent * Event)
{
  switch (Event->type) {
  case Expose:
    if (Event->xexpose.count == 0)
      XCopyArea (display, pixmap, window, gc,
		 0, 0, width, height, 0, 0);
    break;

  }
}

Dialog::~Dialog ()
{
  UnmapMe ();
  if (Yes != NULL)
    delete Yes;
  if (No != NULL)
    delete No;
  if (Cancel != NULL)
    delete Cancel;
  XFreePixmap (display, pixmap);
}