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#include <gtk/gtk.h>
#include "ggobi.h"
#include "externs.h"
#include "GGobiAPI.h"
#include <stdio.h>
#include <string.h>
#include "plugin.h"
#include "ggvis.h"
static void
stressplot_pixmap_clear (ggvisd *ggv, ggobid *gg)
{
colorschemed *scheme = gg->activeColorScheme;
GtkWidget *da = ggv->stressplot_da;
if (gg->plot_GC == NULL)
init_plot_GC (ggv->stressplot_pix, gg);
gdk_gc_set_foreground (gg->plot_GC, &scheme->rgb_bg);
gdk_draw_rectangle (ggv->stressplot_pix, gg->plot_GC,
TRUE, 0, 0,
da->allocation.width,
da->allocation.height);
}
gint
ggv_stressplot_configure_cb (GtkWidget *w, GdkEventExpose *event,
PluginInstance *inst)
{
ggvisd *ggv = ggvisFromInst (inst);
ggobid *gg = inst->gg;
gboolean retval = true;
if (ggv == NULL) /*-- too early to configure --*/
return retval;
if (w->allocation.width < 2 || w->allocation.height < 2)
return retval;
if (ggv->stressplot_pix != NULL)
gdk_pixmap_unref (ggv->stressplot_pix);
ggv->stressplot_pix = gdk_pixmap_new (w->window,
w->allocation.width, w->allocation.height, -1);
stressplot_pixmap_clear (ggv, gg);
gtk_widget_queue_draw (w);
return retval;
}
void
stressplot_pixmap_copy (ggvisd *ggv, ggobid *gg)
{
GtkWidget *da = ggv->stressplot_da;
if (gg->plot_GC == NULL)
init_plot_GC (ggv->stressplot_pix, gg);
/* copy the pixmap to the screen */
gdk_draw_pixmap (da->window, gg->plot_GC, ggv->stressplot_pix,
0, 0, 0, 0,
da->allocation.width,
da->allocation.height);
}
gint
ggv_stressplot_expose_cb (GtkWidget *w, GdkEventExpose *event,
PluginInstance *inst)
{
ggobid *gg = inst->gg;
ggvisd *ggv = ggvisFromInst (inst);
gboolean retval = true;
/*-- sanity checks --*/
if (ggv == NULL) /*-- too early to expose or configure --*/
return retval;
if (ggv->stressplot_pix == NULL)
return retval;
if (w->allocation.width < 2 || w->allocation.height < 2)
return retval;
/*-- copy the pixmap to the screen --*/
stressplot_pixmap_copy (ggv, gg);
return retval;
}
void
reinit_stress (ggvisd *ggv, ggobid *gg)
{
mds_once (false, ggv, gg);
}
void
draw_stress (ggvisd *ggv, ggobid *gg)
{
gint i, j, npixels, start, end;
gfloat x, y;
GdkPoint axes[3];
gchar *str;
GdkPoint strPts[NSTRESSVALUES];
gfloat height;
GtkWidget *da = ggv->stressplot_da;
colorschemed *scheme = gg->activeColorScheme;
PangoLayout *layout = gtk_widget_create_pango_layout(da, NULL);
PangoRectangle rect;
if (gg->plot_GC == NULL)
init_plot_GC (ggv->stressplot_pix, gg);
height = (gfloat)da->allocation.height - 2. * (gfloat)STRESSPLOT_MARGIN;
str = g_strdup_printf ("%s", ".9999");
layout_text(layout, str, &rect);
g_free (str);
if (ggv->stressplot_pix == NULL)
return;
/* plotting one point per pixel ... */
npixels = MIN(da->allocation.width - 2*STRESSPLOT_MARGIN, ggv->nstressvalues);
start = MAX(0, ggv->nstressvalues - npixels);
end = ggv->nstressvalues;
npixels = 0;
for (i=start, j=0; i<end; i++, j++) {
x = (gfloat) j ;
strPts[j].x = (gint) (x + STRESSPLOT_MARGIN);
y = (gfloat) (1 - ggv->stressvalues.els[i]) * height;
strPts[j].y = (gint) (y + STRESSPLOT_MARGIN);
npixels++;
}
/* axes */
axes[0].x = STRESSPLOT_MARGIN;
axes[0].y = STRESSPLOT_MARGIN;
axes[1].x = STRESSPLOT_MARGIN;
axes[1].y = da->allocation.height - STRESSPLOT_MARGIN;
axes[2].x = da->allocation.width - STRESSPLOT_MARGIN;
axes[2].y = da->allocation.height - STRESSPLOT_MARGIN;
/* stress as a fraction */
stressplot_pixmap_clear (ggv, gg);
gdk_gc_set_foreground (gg->plot_GC, &scheme->rgb_accent);
gdk_draw_lines (ggv->stressplot_pix, gg->plot_GC, axes, 3);
if (ggv->nstressvalues > 0) {
str = g_strdup_printf ("%2.4f",
ggv->stressvalues.els[ggv->nstressvalues-1]);
layout_text(layout, str, NULL);
gdk_draw_layout(ggv->stressplot_pix, gg->plot_GC,
da->allocation.width - 2*STRESSPLOT_MARGIN - rect.width,
STRESSPLOT_MARGIN - rect.height, layout);
gdk_draw_lines (ggv->stressplot_pix, gg->plot_GC,
strPts, npixels);
g_free(str);
}
g_object_unref(layout);
stressplot_pixmap_copy (ggv, gg);
}
void add_stress_value (gdouble stress, ggvisd *ggv)
{
gint i;
if (ggv->nstressvalues == NSTRESSVALUES) {
for (i=0; i < (NSTRESSVALUES-1); i++) {
ggv->stressvalues.els[i] = ggv->stressvalues.els[i+1];
}
ggv->nstressvalues--;
}
ggv->stressvalues.els[ggv->nstressvalues] = stress;
ggv->nstressvalues++;
}
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