Example #1
0
void gpk_rectangle_draw(GtkWidget *widget,              /* plot on this widged */
			gdouble *xcord, gdouble *ycord, /* corners */
			gdouble xmn,gdouble ymn,        /* coordinates of corners */
			gdouble xmx,gdouble ymx,
			GdkColor *color)
{
  GdkPixmap **ppixmap;
  GdkPoint points[2];
  int i;
  gint16 width,height;
  GdkGC *gc;


  gc = gdk_gc_new(widget->window);
  gdk_gc_set_foreground(gc, color);


  if ((ppixmap=findpixmap(widget))) {
    width = widget->allocation.width;
    height = widget->allocation.height;


    for (i=0; i<2 ; i++) {
      points[i].x =.5+  ((xcord[i]-xmn)*(width-1)/(xmx-xmn));
      points[i].y =.5+  ((ycord[i]-ymx)*(height-1)/(ymn-ymx));
    }
    width=points[1].x-points[0].x + 1;
    height=points[1].y-points[0].y + 1;
    gdk_draw_rectangle(*ppixmap,gc,TRUE,
		       points[0].x,points[0].y,width,height);
    gpk_redraw(*ppixmap,widget);
  }
  gdk_gc_destroy(gc);
}
Example #2
0
void gpk_graph_draw(GtkWidget *widget,               /* plot on this widged */
		   int n,                           /* number of data points */
		   gdouble *xcord, gdouble *ycord,  /* data */
		   gdouble xmn,gdouble ymn,         /* coordinates of corners */
		   gdouble xmx,gdouble ymx,
                   int clear,                       /* clear old plot first */
		   char *title,                     /* add a title (only if clear=1) */
                   GdkColor *color)		    
{
  GdkPixmap **ppixmap;
  GdkPoint *points;
  int i;
  gint16 width,height;
  GdkFont *fixed_font;
  GdkGC *gc;

  gc = gdk_gc_new(widget->window);
  gdk_gc_set_foreground(gc, color);



  if ((ppixmap=findpixmap(widget))) {
    width = widget->allocation.width;
    height = widget->allocation.height;


    if (clear) {
      /* white background */
      gdk_draw_rectangle (*ppixmap,
			  widget->style->white_gc,
			  TRUE,0, 0,width,height);
      /* title */
#ifdef _WIN32
      fixed_font = gdk_font_load ("-misc-fixed-large-r-*-*-*-100-*-*-*-*-*-*");
#else
      fixed_font = gdk_font_load ("-misc-fixed-medium-r-*-*-*-100-*-*-*-*-iso8859-1");
#endif

      gdk_draw_text (*ppixmap,fixed_font,
		     widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
		     0,10,title,strlen(title));
    }
      

    points = g_malloc(n*sizeof(GdkPoint));
    for (i=0; i<n ; i++) {
      points[i].x =.5+  ((xcord[i]-xmn)*(width-1)/(xmx-xmn));
      points[i].y =.5+  ((ycord[i]-ymx)*(height-1)/(ymn-ymx));
    }
    gdk_draw_lines(*ppixmap,gc,points,n);
    g_free(points);
    gpk_redraw(*ppixmap,widget);
  }
  gdk_gc_destroy(gc);
}
Example #3
0
void
gpk_bargraph_draw(GtkWidget * widget, /* plot on this widged */
                  int n,     /* number of data points */
                  gdouble * xcord, gdouble * ycord, /* data */
                  gdouble xmn, gdouble ymn, /* coordinates of corners */
                  gdouble xmx, gdouble ymx, int clear, /* clear old plot first */
                  char *title, /* add a title (only if clear=1) */
                  int barwidth, /* bar width. 0=compute based on window size */
                  GdkColor * color)
{
    GdkPixmap **ppixmap;
    GdkPoint points[2];
    int     i;
    gint16  width, height, x, y, barheight;
    GdkFont *fixed_font;
    GdkGC  *gc;
    int     titleSplit;


    gc = gdk_gc_new(widget->window);
    gdk_gc_set_foreground(gc, color);


    if ((ppixmap = findpixmap(widget))) {
        width = widget->allocation.width;
        height = widget->allocation.height;


        if (clear) {
            /* white background */
            gdk_draw_rectangle(*ppixmap, widget->style->white_gc, TRUE, 0, 0, width, height);
            /* title */
#ifdef _WIN32
            fixed_font = gdk_font_load("-misc-fixed-large-r-*-*-*-100-*-*-*-*-*-*");
#else
            fixed_font = gdk_font_load("-misc-fixed-medium-r-*-*-*-100-*-*-*-*-iso8859-1");
#endif

            titleSplit = strcspn(title, "\n");

            if (titleSplit && (titleSplit != strlen(title))) {
                gdk_draw_text(*ppixmap, fixed_font,
                              widget->style->fg_gc[GTK_WIDGET_STATE(widget)],
                              0, 10, title, titleSplit);

                gdk_draw_text(*ppixmap, fixed_font,
                              widget->style->fg_gc[GTK_WIDGET_STATE(widget)],
                              0, 22, title + titleSplit + 1, (strlen(title) - titleSplit) - 1);


            }
            else {
                gdk_draw_text(*ppixmap, fixed_font,
                              widget->style->fg_gc[GTK_WIDGET_STATE(widget)],
                              0, 10, title, strlen(title));
            }
        }


        for (i = 0; i < n; i++) {
            points[1].x = .5 + ((xcord[i] - xmn) * (width - 1) / (xmx - xmn));
            points[1].y = .5 + ((ycord[i] - ymx) * (height - 1) / (ymn - ymx));
            points[0].x = points[1].x;
            points[0].y = height - 1;

            x = .5 + ((xcord[i] - xmn) * (width - 1) / (xmx - xmn));
            y = .5 + ((ycord[i] - ymx) * (height - 1) / (ymn - ymx));
            if (!barwidth)
                barwidth = (width / (n + 1)) - 1;
            barwidth = barwidth > 5 ? 5 : barwidth;
            barwidth = barwidth < 1 ? 1 : barwidth;
            barheight = height - 1 - y;
            /* gdk_draw_lines(*ppixmap,gc,points,2); */
            gdk_draw_rectangle(*ppixmap, gc, TRUE, x, y, barwidth, barheight);

        }
        gpk_redraw(*ppixmap, widget);
    }
    gdk_gc_destroy(gc);
}