On Wed, Jul 20, 2005 at 04:42:38PM -0300, romildo@xxxxxxxxxxx wrote:
>
> I am just trying the plotting examples
> from gtk+extra-2.1.1 and found that
> the text is not drawn.
To be more clear, I am trying the
testgtkplotcanvas.c program from the
gtk+extra-2.1.1 distribution. The text is
readable only when gnome is running.
Or better, when /usr/libexec/gnome-settings-daemon,
a tool from control-center, is run. Otherwise
the text is unreadable. Screenshots of the
program can be seen at
http://uber.com.br/romildo/misc/testgtkplotcanvas.notext.png
and at
http://uber.com.br/romildo/misc/testgtkplotcanvas.text.png
I verified that this happens with IceWM,
Fvwm and KDE. I checked both Gentoo Linux
and Fedora Core 4, on an amd64 box, and
on x86.
I really would like to have this issue
explained, if anybody knows its explanation.
I do not expect gtk+extra depending on
gnome. At least it is not mentioned in
any of the documentation I have read.
I need a ploting library in an application
I am developing and I was hoping to use
gtk+extra for that, as I haven't found
any other suitable plotting library that
would work on both Windows and Linux.
Regards.
#include <math.h>
#include <stdio.h>
#include <gtk/gtk.h>
#include <gdk/gdk.h>
#include "gtkplot.h"
#include "gtkplotdata.h"
#include "gtkplotcanvas.h"
#include "gtkplotcanvasrectangle.h"
#include "gtkplotcanvasellipse.h"
#include "gtkplotcanvasline.h"
#include "gtkplotcanvastext.h"
#include "gtkplotcanvasplot.h"
#include "gtkplotcanvaspixmap.h"
#include "gtkplotps.h"
#include "gtkplotprint.h"
GdkPixmap *pixmap=NULL;
GtkWidget **plots;
GtkWidget **buttons;
GtkPlotData *dataset[5];
gint nlayers = 0;
void
quit ()
{
gtk_main_quit();
}
gint
select_item(GtkWidget *widget, GdkEvent *event, GtkPlotCanvasChild *child,
gpointer data)
{
gint n = 0;
gdouble *x = NULL, *y = NULL;
if(GTK_IS_PLOT_CANVAS_TEXT(child))
printf("Item selected: TEXT\n");
if(GTK_IS_PLOT_CANVAS_PIXMAP(child))
printf("Item selected: PIXMAP\n");
if(GTK_IS_PLOT_CANVAS_RECTANGLE(child))
printf("Item selected: RECTANGLE\n");
if(GTK_IS_PLOT_CANVAS_ELLIPSE(child))
printf("Item selected: ELLIPSE\n");
if(GTK_IS_PLOT_CANVAS_LINE(child))
printf("Item selected: LINE\n");
if(GTK_IS_PLOT_CANVAS_PLOT(child)){
switch(GTK_PLOT_CANVAS_PLOT(child)->pos){
case GTK_PLOT_CANVAS_PLOT_IN_TITLE:
printf("Item selected: TITLE\n");
break;
case GTK_PLOT_CANVAS_PLOT_IN_LEGENDS:
printf("Item selected: LEGENDS\n");
break;
case GTK_PLOT_CANVAS_PLOT_IN_PLOT:
printf("Item selected: PLOT\n");
break;
case GTK_PLOT_CANVAS_PLOT_IN_AXIS:
printf("Item selected: AXIS\n");
break;
case GTK_PLOT_CANVAS_PLOT_IN_MARKER:
printf("Item selected: MARKER\n");
break;
case GTK_PLOT_CANVAS_PLOT_IN_GRADIENT:
printf("Item selected: GRADIENT\n");
break;
case GTK_PLOT_CANVAS_PLOT_IN_DATA:
x = gtk_plot_data_get_x(GTK_PLOT_CANVAS_PLOT(child)->data, &n);
y = gtk_plot_data_get_y(GTK_PLOT_CANVAS_PLOT(child)->data, &n);
n = GTK_PLOT_CANVAS_PLOT(child)->datapoint;
printf("Item selected: DATA\n");
printf("Active point: %d -> %f %f\n",
GTK_PLOT_CANVAS_PLOT(child)->datapoint, x[n], y[n]);
break;
default:
break;
}
}
return TRUE;
}
int main(int argc, char *argv[]){
GtkWidget *window1;
GtkWidget *vbox1;
GtkWidget *scrollw1;
GtkWidget *active_plot;
GtkWidget *canvas;
GtkPlotCanvasChild *child = NULL;
gint page_width, page_height;
gfloat scale = 1.;
page_width = GTK_PLOT_LETTER_W * scale;
page_height = GTK_PLOT_LETTER_H * scale;
gtk_init(&argc,&argv);
window1=gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_title(GTK_WINDOW(window1), "GtkPlotCanvas Demo");
gtk_widget_set_usize(window1,550,650);
gtk_container_border_width(GTK_CONTAINER(window1),0);
gtk_signal_connect (GTK_OBJECT (window1), "destroy",
GTK_SIGNAL_FUNC (quit), NULL);
vbox1=gtk_vbox_new(FALSE,0);
gtk_container_add(GTK_CONTAINER(window1),vbox1);
gtk_widget_show(vbox1);
scrollw1=gtk_scrolled_window_new(NULL, NULL);
gtk_container_border_width(GTK_CONTAINER(scrollw1),0);
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrollw1),
GTK_POLICY_ALWAYS,GTK_POLICY_ALWAYS);
gtk_box_pack_start(GTK_BOX(vbox1),scrollw1, TRUE, TRUE,0);
gtk_widget_show(scrollw1);
canvas = gtk_plot_canvas_new(page_width, page_height, 1.);
GTK_PLOT_CANVAS_SET_FLAGS(GTK_PLOT_CANVAS(canvas), GTK_PLOT_CANVAS_DND_FLAGS|GTK_PLOT_CANVAS_CAN_SELECT);
gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(scrollw1), canvas);
gtk_widget_show(canvas);
/*
gdk_color_parse("light blue", &color);
gdk_color_alloc(gtk_widget_get_colormap(canvas), &color);
gtk_plot_canvas_set_background(GTK_PLOT_CANVAS(canvas), &color);
*/
active_plot = gtk_plot_new(NULL);
gtk_widget_show(active_plot);
child = gtk_plot_canvas_plot_new(GTK_PLOT(active_plot));
gtk_plot_canvas_put_child(GTK_PLOT_CANVAS(canvas), child, .1, .1, .8, .65);
child = gtk_plot_canvas_rectangle_new(GTK_PLOT_LINE_SOLID, 1, NULL, NULL, GTK_PLOT_BORDER_SHADOW, FALSE);
gtk_plot_canvas_put_child(GTK_PLOT_CANVAS(canvas), child, 0.2, 0.2, 0.3, 0.5);
child = gtk_plot_canvas_ellipse_new(GTK_PLOT_LINE_SOLID, 1, NULL, NULL, FALSE);
gtk_plot_canvas_put_child(GTK_PLOT_CANVAS(canvas), child, 0.5, 0.45, 0.75, 0.6);
child = gtk_plot_canvas_line_new(GTK_PLOT_LINE_SOLID, 1, NULL, GTK_PLOT_CANVAS_ARROW_END);
gtk_plot_canvas_put_child(GTK_PLOT_CANVAS(canvas), child, 0.15, 0.4, 0.2, 0.6);
/* child = gtk_plot_canvas_text_new("Helvetica", 24, 0, NULL, NULL, TRUE, GTK_JUSTIFY_CENTER, "This is a text box"); */
child = gtk_plot_canvas_text_new("Helvetica", 24, 0, NULL, NULL, TRUE, GTK_JUSTIFY_CENTER, "This is a text box");
gtk_plot_canvas_put_child(GTK_PLOT_CANVAS(canvas), child, 0.5, 0.05, 0.6, 0.1);
gtk_signal_connect(GTK_OBJECT(canvas), "select_item",
(GtkSignalFunc) select_item, NULL);
gtk_widget_show(window1);
gtk_plot_canvas_export_ps(GTK_PLOT_CANVAS(canvas), "democanvas.ps", 0, 0,
GTK_PLOT_LETTER);
gtk_main();
return(0);
}
_______________________________________________
gtk-list@xxxxxxxxx
http://mail.gnome.org/mailman/listinfo/gtk-list
