bwindow.cpp

#include <stdio.h>
#include <stdlib.h>
#include "bwindow.h"

bwindow::bwindow()
{
    width = MIN_WIDTH;
    height =  MIN_HEIGHT;
    strcpy(window_name,"Default Window");
    strcpy(icon_name,"Defwin");
    line_width = 1;
    border_width = 4;
    strcpy(fontname,"9x15");
}

bwindow::bwindow(int w,int h)
{
    width = w > MIN_WIDTH ? w : MIN_WIDTH;
    height = h > MIN_HEIGHT ? h : MIN_HEIGHT;
    strcpy(window_name,"Default Window");
    strcpy(icon_name,"Defwin");
    line_width = 1;
    border_width = 4;
    strcpy(fontname,"lucidasans-12");
}

bwindow::bwindow(int w,int h, char * name)
{

    width = w > MIN_WIDTH ? w : MIN_WIDTH;
    height = h > MIN_HEIGHT ? h : MIN_HEIGHT;
    strcpy(window_name,name);
    strcpy(icon_name,name);
    line_width = 1;
    border_width = 4;
    strcpy(fontname,"9x15");
}

bwindow::bwindow(int w,int h, char * name,char * font)
{

    width = w > MIN_WIDTH ? w : MIN_WIDTH;
    height = h > MIN_HEIGHT ? h : MIN_HEIGHT;
    strcpy(window_name,name);
    strcpy(icon_name,name);
    strcpy(fontname,font);
    line_width = 1;
    border_width = 4;
}

bwindow::~bwindow()
{
    clean_up();
}
int bwindow::init()
{
    Pixmap icon_pixmap;
    if ((display=XOpenDisplay(0x0)) == NULL)
    {
	return ERR_BAD_DISPLAY;
    }
    screen = DefaultScreen(display);
    display_width = DisplayWidth(display,screen);
    display_height = DisplayHeight(display,screen);
  
    win = XCreateSimpleWindow(display, RootWindow(display,screen),
			      x, y, width, height, border_width,
			      BlackPixel(display,screen),
			      WhitePixel(display,screen));
    size_hints.flags = PPosition | PSize | PMinSize;
    size_hints.x = x;
    size_hints.y = y;
    size_hints.width = width;
    size_hints.height = height;
    size_hints.min_width = MIN_WIDTH;
    size_hints.min_height = MIN_HEIGHT;

    XSetStandardProperties(display, win, window_name, icon_name,0 ,0, icon_pixmap, &size_hints);

    XSelectInput(display, win, ExposureMask |
		 KeyPressMask |
		 ButtonPressMask |
		 StructureNotifyMask);
    if (load_font()!=0)
	return ERR_BAD_FONT;
    get_gc();
    return 0;
}
int bwindow::load_font()
{
  if ((font_info=XLoadQueryFont(display,fontname)) == NULL)
    {
	return -1;
    }
  else
      return 0;
}

int bwindow::reload_font(char * font_name)
{
    strcpy(fontname,font_name);
    return load_font();
}

void bwindow::clean_up()
{
	
    XUnloadFont(display, font_info->fid);
    XFreeGC(display, gc);
    XCloseDisplay(display);
}

void bwindow::map()
{
    XMapWindow(display,win);
}
int bwindow::get_gc()
{
    unsigned long valuemask = 0;
    XGCValues values;
    gc = XCreateGC(display, win, valuemask, &values);
    XSetFont(display, gc, font_info->fid);
    XSetForeground(display, gc, 0x0 /* BlackPixel(display,screen) */);
    XSetLineAttributes(display, gc, line_width, LineSolid, CapButt, JoinMiter);
    return 0;
}


int bwindow::parse_event()
{

  while((XPending(display) > 0))
  {
    
      XNextEvent(display, &report);
      
      switch (report.type)
      {
	  case Expose:
	      return BEXPOSE;
	  case ConfigureNotify:
	      
	      width = report.xconfigure.width;
	      height = report.xconfigure.height;
	      if (width < size_hints.min_width) 
		  width = size_hints.min_width;
	      if (height < size_hints.min_height)
		  height = size_hints.min_height;
	      return BCONFIGURE;
	      break;
	      
	  case ButtonPress:
	      return BBPRESS;
	      break;
	  case KeyPress:
	      strcpy(lastkey,XKeysymToString(XKeycodeToKeysym(display,report.xkey.keycode,0)));
	      if (!strcmp(lastkey,"Escape"))
		  exit(0);
	      return BKPRESS;
	      break;    		
	  default:
	      break;
      }
  }
}

void bwindow::draw_text(int x, int y, unsigned int color, const char * text, int len)
{
    XSetForeground(display, gc,color);
    XDrawString(display, win, gc, x, y, text, len);
    XSetForeground(display, gc,0x0);
}
 

void bwindow::draw_square(int x1,int y1,int x2,int y2,unsigned int color)
{
 XSetForeground(display, gc,color);
 XDrawRectangle(display, win, gc, x1, y1,x2-x1, y2-y1);
 XSetForeground(display, gc,0x0);
}

void bwindow::draw_line(int x1,int y1,int x2,int y2,unsigned int color)
{
 XSetForeground(display, gc,color);
 XDrawLine(display, win, gc, x1, y1, x2,y2);
 XSetForeground(display, gc,0x0);
}



void bwindow::draw_point(int x, int y, unsigned int color)
{
    XSetForeground(display, gc,color);
    XDrawPoint(display, win, gc, x, y);
    XSetForeground(display, gc,0x0);
}

void bwindow::draw_fsquare(int x1,int y1,int x2,int y2,unsigned int color)
{
 XSetForeground(display, gc,color);
 XFillRectangle(display, win, gc, x1, y1, x2-x1, y2-y1);
 XSetForeground(display, gc,0x0);
}
char * bwindow::get_lastkey()
{
    return lastkey;
}

unsigned int bwindow::get_width()
{
    return width;
}

unsigned int bwindow::get_height()
{
    return height;
}