Re: ruler doesn't work well with myline.c

[Gustavo Carneiro <gjc inescporto pt>]

On Mon, 2002-05-20 at 15:48, Donggyoo Lee wrote:
> Hello. This is GTK+ beginner speaking.
> I add myline.c to ruler.c. example source called ruler.c works well.
>
> But, ruler on ruler_line.c  doesn't work well. ruler Widget don't move
> dynamically. 
> I don't know what is problum. I'm very stupid.
>
> Please, tell me what is problum on ruler_line.c.

  I think your main problem is your english. :) No offense intended!
  Your program compiles and runs. I see no problem. What do you mean by
"ruler Widget don't move dynamically"? Because I see the rulers
stretching to adjust to the size of the window. Is there anything else
you wanted to do?

> Thank you,
> Donggyoo Lee
>
>
> -- 
> It is understood on the middle which you proceed, and appreciated on the
> middle which you execute.                   -- Moolmoolja (1900 to 1994 A.D.)
>           undergraduate Computer Engineering major, Korea Maritime Univ.
> Fingerprint: 46B3 D652 7ADA A68D 482C  DB63 60EB 5CDF 14BF 16C8 pub 0x14BF16C8
> Kongzi (551 to 479 B.C)
> ----

> #include <gtk/gtk.h>
>
> #define EVENT_METHOD(i, x) GTK_WIDGET_GET_CLASS(i)->x
>
> #define XSIZE  600
> #define YSIZE  400
>
> /* This routine gets control when the close button is clicked */
> gint close_application( GtkWidget *widget,
>                         GdkEvent  *event,
>                         gpointer   data )
> {
>     gtk_main_quit ();
>     return FALSE;
> }
>
> /* Redraw the screen from the backing pixmap */
> static gint
> expose_event (GtkWidget *widget, GdkEventExpose *event)
> {
>       gdk_draw_line(widget->window, widget->style->black_gc, 0, 0, 300, 300);
>       return FALSE;
> }
>
> /* The main routine */
> int main( int   argc,
>           char *argv[] ) {
>     GtkWidget *window, *table, *area, *hrule, *vrule;
>
>     /* Initialize GTK and create the main window */
>     gtk_init (&argc, &argv);
>
>     window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
>     g_signal_connect (G_OBJECT (window), "delete_event",
>                       G_CALLBACK (close_application), NULL);
>     gtk_container_set_border_width (GTK_CONTAINER (window), 10);
>
>     /* Create a table for placing the ruler and the drawing area */
>     table = gtk_table_new (3, 2, FALSE);
>     gtk_container_add (GTK_CONTAINER (window), table);
>
>     area = gtk_drawing_area_new ();
>       gtk_signal_connect (GTK_OBJECT (area), "expose_event",
>                           GTK_SIGNAL_FUNC (expose_event), NULL);
>     gtk_widget_set_size_request (GTK_WIDGET (area), XSIZE, YSIZE);
>     gtk_table_attach (GTK_TABLE (table), area, 1, 2, 1, 2,
>                       GTK_EXPAND|GTK_FILL, GTK_FILL, 0, 0);
>     gtk_widget_set_events (area, GDK_POINTER_MOTION_MASK |
>                                  GDK_POINTER_MOTION_HINT_MASK);
>
>     /* The horizontal ruler goes on top. As the mouse moves across the
>      * drawing area, a motion_notify_event is passed to the
>      * appropriate event handler for the ruler. */
>     hrule = gtk_hruler_new ();
>     gtk_ruler_set_metric (GTK_RULER (hrule), GTK_PIXELS);
>     gtk_ruler_set_range (GTK_RULER (hrule), 7, 13, 0, 20);
>     g_signal_connect_swapped (G_OBJECT (area), "motion_notify_event",
>                               G_CALLBACK (EVENT_METHOD (hrule, motion_notify_event)),
>                               hrule);
>     gtk_table_attach (GTK_TABLE (table), hrule, 1, 2, 0, 1,
>                       GTK_EXPAND|GTK_SHRINK|GTK_FILL, GTK_FILL, 0, 0);
>     
>     /* The vertical ruler goes on the left. As the mouse moves across
>      * the drawing area, a motion_notify_event is passed to the
>      * appropriate event handler for the ruler. */
>     vrule = gtk_vruler_new ();
>     gtk_ruler_set_metric (GTK_RULER (vrule), GTK_PIXELS);
>     gtk_ruler_set_range (GTK_RULER (vrule), 0, YSIZE, 10, YSIZE );
>     g_signal_connect_swapped (G_OBJECT (area), "motion_notify_event",
>                               G_CALLBACK (EVENT_METHOD (vrule, motion_notify_event)),
>                               vrule);
>     gtk_table_attach (GTK_TABLE (table), vrule, 0, 1, 1, 2,
>                       GTK_FILL, GTK_EXPAND|GTK_SHRINK|GTK_FILL, 0, 0);
>
>     /* Now show everything */
>     gtk_widget_show (area);
>       gtk_widget_set_events (area, GDK_EXPOSURE_MASK);
>     gtk_widget_show (hrule);
>     gtk_widget_show (vrule);
>     gtk_widget_show (table);
>     gtk_widget_show (window);
>     gtk_main ();
>
>     return 0;
> }
-- 
Gustavo João Alves Marques Carneiro
<gjc inescporto pt> <gustavo users sourceforge net>