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gtk-demo: add menu check and radio examples

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note that if the "menu" context has no parent then the GTK_STATE_FLAG_NORMAL
menu entries are invisible against the white background.

https://bugzilla.gnome.org/show_bug.cgi?id=762080
This commit is contained in:
Caolán McNamara
2016-02-11 16:48:51 +00:00
committed by Matthias Clasen
parent 1140a514ea
commit 1131ae27a0
1 changed files with 53 additions and 8 deletions
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61
demos/gtk-demo/foreigndrawing.c
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@ -145,30 +145,75 @@ draw_menu (GtkWidget *widget,
{
GtkStyleContext *menu_context;
GtkStyleContext *menuitem_context;
GtkStyleContext *hovermenuitem_context;
GtkStyleContext *arrowmenuitem_context;
GtkStyleContext *checkmenuitem_context;
GtkStyleContext *radiomenuitem_context;
GtkStyleContext *disablemenuitem_context;
/* This information is taken from the GtkMenu docs, see "CSS nodes" */
menu_context = get_style (NULL, "menu");
menu_context = get_style (gtk_widget_get_style_context(widget), "menu");
gtk_render_background (menu_context, cr, x, y, width, height);
gtk_render_frame (menu_context, cr, x, y, width, height);
menuitem_context = get_style (menu_context, "menuitem:hover");
gtk_render_background (menuitem_context, cr, x, y, width, 20);
gtk_render_frame (menuitem_context, cr, x, y, width, 20);
hovermenuitem_context = get_style (menu_context, "menuitem:hover");
gtk_render_background (hovermenuitem_context, cr, x, y, width, 20);
gtk_render_frame (hovermenuitem_context, cr, x, y, width, 20);
/* arrow for left to right */
arrowmenuitem_context = get_style (menuitem_context, "arrow:dir(ltr)");
arrowmenuitem_context = get_style (hovermenuitem_context, "arrow:dir(ltr)");
gtk_render_arrow (arrowmenuitem_context, cr, G_PI / 2, x + width - 20, y, 20);
g_object_unref (arrowmenuitem_context);
menuitem_context = get_style (menu_context, "menuitem");
gtk_render_background (menuitem_context, cr, x, y + 20, width, 20);
gtk_render_frame (menuitem_context, cr, x, y + 20, width, 20);
g_object_unref (arrowmenuitem_context);
/* arrow for right to left */
disablemenuitem_context = get_style (menu_context, "menuitem:disabled");
/* arrow for right to left, sensitive */
arrowmenuitem_context = get_style (menuitem_context, "arrow:dir(rtl)");
gtk_render_arrow (arrowmenuitem_context, cr, G_PI / 2, x, y + 20, 20);
g_object_unref (arrowmenuitem_context);
/* arrow for right to left, insensitive */
arrowmenuitem_context = get_style (disablemenuitem_context, "arrow:dir(rtl)");
gtk_render_arrow (arrowmenuitem_context, cr, G_PI / 2, x + width - 20, y + 20, 20);
gtk_render_background (menuitem_context, cr, x, y + 40, width, 20);
gtk_render_frame (menuitem_context, cr, x, y + 40, width, 20);
/* check enabled, sensitive */
checkmenuitem_context = get_style (menuitem_context, "check:checked");
gtk_render_frame (checkmenuitem_context, cr, x + 2, y + 40, 16, 16);
gtk_render_check (checkmenuitem_context, cr, x + 2, y + 40, 16, 16);
g_object_unref (checkmenuitem_context);
/* check unchecked, insensitive */
checkmenuitem_context = get_style (disablemenuitem_context, "check");
gtk_render_frame (checkmenuitem_context, cr, x + width - 18, y + 40, 16, 16);
gtk_render_check (checkmenuitem_context, cr, x + width - 18, y + 40, 16, 16);
gtk_render_background (menuitem_context, cr, x, y + 60, width, 20);
gtk_render_frame (menuitem_context, cr, x, y + 60, width, 20);
/* radio checked, sensitive */
radiomenuitem_context = get_style (menuitem_context, "radio:checked");
gtk_render_frame (radiomenuitem_context, cr, x + 2, y + 60, 16, 16);
gtk_render_option (radiomenuitem_context, cr, x + 2, y + 60, 16, 16);
g_object_unref (radiomenuitem_context);
/* radio unchecked, insensitive */
radiomenuitem_context = get_style (disablemenuitem_context, "radio");
gtk_render_frame (radiomenuitem_context, cr, x + width - 18, y + 60, 16, 16);
gtk_render_option (radiomenuitem_context, cr, x + width - 18, y + 60, 16, 16);
g_object_unref (disablemenuitem_context);
g_object_unref (radiomenuitem_context);
g_object_unref (checkmenuitem_context);
g_object_unref (arrowmenuitem_context);
g_object_unref (hovermenuitem_context);
g_object_unref (menuitem_context);
g_object_unref (menu_context);
}