Re: ImageButton

[Roei Azachi <roei@xxxxxxxxxxxxxxxx>]

you can do something like this:
GtkStyle *style;
GdkPixmap *pixmap_normal = NULL;
GdkPixmap *pixmap_prelight = NULL;
GdkPixmap *pixmap_active = NULL;
GdkPixmap *pixmap_selected = NULL;
GdkPixmap *pixmap_insensitive = NULL;

gdk_pixbuf_render_pixmap_and_mask(pixbuf, &pixmap_normal, &mask, 255);
gdk_pixbuf_render_pixmap_and_mask(spotbuf, &pixmap_prelight, NULL, 255);
gdk_pixbuf_render_pixmap_and_mask(spotbuf, &pixmap_active, NULL, 255);
gdk_pixbuf_render_pixmap_and_mask(spotbuf, &pixmap_selected, NULL, 255);
gdk_pixbuf_render_pixmap_and_mask(spotbuf, &pixmap_insensitive, NULL, 255);

style = gtk_style_copy(gtk_widget_get_style(GTK_WIDGET(self)));
   
    style->bg_pixmap[GTK_STATE_NORMAL] = pixmap_normal;
    style->bg_pixmap[GTK_STATE_PRELIGHT] = pixmap_prelight;
    style->bg_pixmap[GTK_STATE_ACTIVE] = pixmap_active;
    style->bg_pixmap[GTK_STATE_SELECTED] = pixmap_selected;
    style->bg_pixmap[GTK_STATE_INSENSITIVE] = pixmap_insensitive;


gtk_widget_shape_combine_mask(GTK_WIDGET(self), mask, 0, 0);
/* now connect to the signals in order to change the widget state */
    g_signal_connect(G_OBJECT(self), "enter-notify-event",
    G_CALLBACK(on_enter), NULL);
    g_signal_connect(G_OBJECT(self), "leave-notify-event",
    G_CALLBACK(on_leave), NULL);
   

static int on_enter(GtkWidget *widget, GdkEvent *gdk_event)
{
    gtk_widget_set_state(widget, GTK_STATE_PRELIGHT);
    return 0;
}

static int on_leave(GtkWidget *widget, GdkEvent *gdk_event)
{
    gtk_widget_set_state(widget, GTK_STATE_NORMAL);
    return 0;
}

Steffen Toksvig wrote:

Just make a regular button and turn off the relief decoration and the border:

       gtk_button_set_relief( GTK_BUTTON( but ), GTK_RELIEF_NONE );
       gtk_container_set_border_width( GTK_CONTAINER( but ), 0 );

No doubt you could do this with a style file too.

Put a GtkImage inside the button and change the graphic to whatever
you want, whenever you want.
    

I have made a screenshot of what I am trying to do:

http://picasaweb.google.com/lh/photo/gnQjiPc5wq1J-4yFVHLExA?feat=directlink

Notice that when I use the GtkButton there is still a border around
the image and the button decorations are still drawn.
Any idea of how to completely swap the button graphics with an image?

-Steffen
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