Re: Custom widget painting with GtkStyle

[Sebastian PajÄk <spconv+m gmail com>]

Thanks. The code compiles, but the painted box doesn't appear also.
But the fault is somewhere else. I found gtk_paint_box doesn't work
with MS-Windows theme only. With any other theme no problem exists
(yes, I use gtk+ on win xp). It's weird because GtkButton also calls
this function and there is no problem drawing it even with MS-Windows
theme. I have no idea why it is so. Need to study gtk+ source more...

Sebastian

2009/12/20 Artur Galyamov <artur-pub yandex ru>:
> #include <gtk/gtk.h>
>
> static GtkWidget *window = NULL;
>
> static gboolean
> expose_event(GtkWidget *widget, GdkEventExpose *event)
> {
> Â Âstatic GtkStyle *style = NULL;
>
> Â Âint x = widget->allocation.x;
> Â Âint y = widget->allocation.y;
> Â Âint width = widget->allocation.width;
> Â Âint height = widget->allocation.height;
>
> Â Âif (!style)
> Â Â Â Âstyle = gtk_rc_get_style_by_paths(gtk_settings_get_default(), NULL,
> Â Â Â Â Â Â"GtkButton", GTK_TYPE_BUTTON);
>
> Â Âstyle = gtk_style_attach(style, widget->window);
>
> Â Âgtk_paint_box(style, widget->window,
> Â Â Â ÂGTK_STATE_NORMAL,
> Â Â Â ÂGTK_SHADOW_OUT, &event->area,
> Â Â Â Âwidget, "button",
> Â Â Â Âx, y, width, height);
>
> Â Âgtk_style_detach(style);
> Â Âreturn FALSE;
> }
>
> static GtkWidget *
> create_widget(void)
> {
> Â ÂGtkWidget *vbox = gtk_vbox_new(FALSE, 4);
> Â ÂGtkWidget *btn0 = gtk_vbox_new(FALSE, 0);
> Â ÂGtkWidget *btn1 = gtk_button_new();
> Â ÂGtkWidget *btn2 = gtk_button_new();
>
> Â ÂGTK_WIDGET_SET_FLAGS(btn0, GTK_APP_PAINTABLE);
>
> Â Âg_signal_connect(btn0, "expose-event",
> Â Â Â Â(GCallback) expose_event, NULL);
> Â Âgtk_box_pack_start(GTK_BOX(vbox), btn0, 1, 1, 0);
> Â Âgtk_box_pack_start(GTK_BOX(vbox), btn1, 1, 1, 0);
> Â Âgtk_box_pack_start(GTK_BOX(vbox), btn2, 1, 1, 0);
>
> Â Âgtk_container_set_border_width(GTK_CONTAINER(vbox), 4);
> Â Âgtk_widget_show_all(vbox);
> Â Âreturn vbox;
> }
>
> int
> main(int argc, char *argv[])
> {
> Â Âgtk_init(&argc, &argv);
> Â Âwindow = gtk_window_new(GTK_WINDOW_TOPLEVEL);
> Â Âgtk_window_set_default_size(GTK_WINDOW(window), 400, 300);
> Â Âauto void on_destroy(void);
> Â Âauto void on_destroy(void) { gtk_main_quit(); }
> Â Âg_signal_connect(window, "destroy", (GCallback) on_destroy, NULL);
> Â Âgtk_container_add(GTK_CONTAINER(window), create_widget());
> Â Âgtk_widget_show(window);
> Â Âgtk_main();
> Â Âreturn 0;
> }
>
> Attaches don't work here..
>
> --
> Artur