diff options
Diffstat (limited to 'tests/testgtk.c')
| -rw-r--r-- | tests/testgtk.c | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/tests/testgtk.c b/tests/testgtk.c index 22919bd23c..b4480be8d4 100644 --- a/tests/testgtk.c +++ b/tests/testgtk.c @@ -148,6 +148,258 @@ destroy_tooltips (GtkWidget *widget, GtkWindow **window) /* + * Windows with an alpha channel + */ + + +static gboolean +on_alpha_window_expose (GtkWidget *widget, + GdkEventExpose *expose) +{ + cairo_t *cr; + cairo_pattern_t *pattern; + int radius; + + cr = gdk_drawable_create_cairo_context (widget->window); + + radius = MIN (widget->allocation.width, widget->allocation.height) / 2; + pattern = cairo_pattern_create_radial (widget->allocation.width / 2, + widget->allocation.height / 2, + 0.0, + widget->allocation.width / 2, + widget->allocation.height / 2, + radius * 1.33); + + if (gdk_screen_get_rgba_colormap (gtk_widget_get_screen (widget))) + cairo_set_source_rgba (cr, 1.0, 1.0, 1.0, 0.0); /* transparent */ + else + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* opaque white */ + + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_paint (cr); + + cairo_pattern_add_color_stop_rgba (pattern, 0.0, + 1.0, 0.75, 0.0, 1.0); /* solid orange */ + cairo_pattern_add_color_stop_rgba (pattern, 1.0, + 1.0, 0.75, 0.0, 0.0); /* transparent orange */ + + cairo_set_source (cr, pattern); + cairo_pattern_destroy (pattern); + + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_paint (cr); + + cairo_destroy (cr); + + return FALSE; +} + +static GtkWidget * +build_alpha_widgets (void) +{ + GtkWidget *table; + GtkWidget *radio_button; + GtkWidget *hbox; + GtkWidget *label; + GtkWidget *entry; + + table = gtk_table_new (1, 1, FALSE); + + radio_button = gtk_radio_button_new_with_label (NULL, "Red"); + gtk_table_attach (GTK_TABLE (table), + radio_button, + 0, 1, 0, 1, + GTK_EXPAND | GTK_FILL, 0, + 0, 0); + + radio_button = gtk_radio_button_new_with_label_from_widget (GTK_RADIO_BUTTON (radio_button), "Green"); + gtk_table_attach (GTK_TABLE (table), + radio_button, + 0, 1, 1, 2, + GTK_EXPAND | GTK_FILL, 0, + 0, 0); + + radio_button = gtk_radio_button_new_with_label_from_widget (GTK_RADIO_BUTTON (radio_button), "Blue"), + gtk_table_attach (GTK_TABLE (table), + radio_button, + 0, 1, 2, 3, + GTK_EXPAND | GTK_FILL, 0, + 0, 0); + + gtk_table_attach (GTK_TABLE (table), + gtk_check_button_new_with_label ("Sedentary"), + 1, 2, 0, 1, + GTK_EXPAND | GTK_FILL, 0, + 0, 0); + gtk_table_attach (GTK_TABLE (table), + gtk_check_button_new_with_label ("Nocturnal"), + 1, 2, 1, 2, + GTK_EXPAND | GTK_FILL, 0, + 0, 0); + gtk_table_attach (GTK_TABLE (table), + gtk_check_button_new_with_label ("Compulsive"), + 1, 2, 2, 3, + GTK_EXPAND | GTK_FILL, 0, + 0, 0); + + radio_button = gtk_radio_button_new_with_label_from_widget (GTK_RADIO_BUTTON (radio_button), "Green"); + gtk_table_attach (GTK_TABLE (table), + radio_button, + 0, 1, 1, 2, + GTK_EXPAND | GTK_FILL, 0, + 0, 0); + + radio_button = gtk_radio_button_new_with_label_from_widget (GTK_RADIO_BUTTON (radio_button), "Blue"), + gtk_table_attach (GTK_TABLE (table), + radio_button, + 0, 1, 2, 3, + GTK_EXPAND | GTK_FILL, 0, + 0, 0); + + hbox = gtk_hbox_new (FALSE, 0); + label = gtk_label_new (NULL); + gtk_label_set_markup (GTK_LABEL (label), "<i>Entry: </i>"); + gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0); + entry = gtk_entry_new (); + gtk_box_pack_start (GTK_BOX (hbox), entry, TRUE, TRUE, 0); + gtk_table_attach (GTK_TABLE (table), + hbox, + 0, 1, 3, 4, + GTK_EXPAND | GTK_FILL, 0, + 0, 0); + + return table; +} + +static gboolean +on_alpha_drawing_expose (GtkWidget *widget, + GdkEventExpose *expose) +{ + int x = widget->allocation.x; + int y = widget->allocation.y; + int width = widget->allocation.width; + int height = widget->allocation.height; + GdkPixbuf *pixbuf; + guchar *buffer; + guchar *p; + int i, j; + + buffer = g_malloc (64 * 64 * 4); + + gdk_draw_rectangle (widget->window, widget->style->black_gc, FALSE, + x, y, + width - 1, height - 1); + + p = buffer; + for (i = 0; i < 64; i++) { + for (j = 0; j < 64; j++) { + *(p++) = i * 4 + 3; + *(p++) = 0; + *(p++) = j + 4 + 3; + *(p++) = MIN (255, ((32 - i) * (32 - i) + (32 - j) * (32 - j)) / 8); + } + } + p++; + + gdk_draw_rgb_32_image (widget->window, widget->style->black_gc, + x + 18, y + (height - 64) /2, + 64, 64, GDK_RGB_DITHER_NORMAL, buffer, 64 * 4); + + pixbuf = gdk_pixbuf_new_from_data (buffer, GDK_COLORSPACE_RGB, TRUE, + 8, 64, 64, 4 * 64, NULL, NULL); + + gdk_draw_pixbuf (widget->window, widget->style->black_gc, pixbuf, + 0, 0, x + width - 18 - 64, y + (height - 64) /2, + 64, 64, GDK_RGB_DITHER_NORMAL, 0, 0); + + g_object_unref (pixbuf); + + g_free (buffer); + + return FALSE; +} + +static GtkWidget * +build_alpha_drawing () +{ + GtkWidget *hbox; + + hbox = gtk_hbox_new (FALSE, 0); + gtk_widget_set_size_request (hbox, 100, 100); + + g_signal_connect (hbox, "expose-event", + G_CALLBACK (on_alpha_drawing_expose), NULL); + + return hbox; +} + +static void +on_alpha_screen_changed (GtkWidget *widget, + GdkScreen *old_screen, + GtkWidget *label) +{ + GdkScreen *screen = gtk_widget_get_screen (widget); + GdkColormap *colormap = gdk_screen_get_rgba_colormap (screen); + + if (!colormap) + { + colormap = gdk_screen_get_rgb_colormap (screen); + gtk_label_set_markup (GTK_LABEL (label), "<b>Screen doesn't support alpha</b>"); + } + else + { + gtk_label_set_markup (GTK_LABEL (label), "<b>Screen supports alpha</b>"); + } + + gtk_widget_set_colormap (widget, colormap); +} + +void +create_alpha_window (GtkWidget *widget) +{ + static GtkWidget *window; + + if (!window) + { + GtkWidget *vbox; + GtkWidget *label; + + window = gtk_dialog_new_with_buttons ("Alpha Window", + GTK_WINDOW (gtk_widget_get_toplevel (widget)), 0, + GTK_STOCK_CLOSE, 0, + NULL); + + gtk_widget_set_app_paintable (window, TRUE); + g_signal_connect (window, "expose-event", + G_CALLBACK (on_alpha_window_expose), NULL); + + vbox = gtk_vbox_new (FALSE, 8); + gtk_container_set_border_width (GTK_CONTAINER (vbox), 12); + gtk_box_pack_start (GTK_BOX (GTK_DIALOG (window)->vbox), vbox, + TRUE, TRUE, 0); + + label = gtk_label_new (NULL); + + gtk_box_pack_start (GTK_BOX (vbox), label, TRUE, TRUE, 0); + gtk_box_pack_start (GTK_BOX (vbox), build_alpha_widgets (), TRUE, TRUE, 0); + gtk_box_pack_start (GTK_BOX (vbox), build_alpha_drawing (), TRUE, TRUE, 0); + + on_alpha_screen_changed (window, NULL, label); + g_signal_connect (window, "screen-changed", + G_CALLBACK (on_alpha_screen_changed), label); + + g_signal_connect (window, "destroy", + G_CALLBACK (gtk_widget_destroyed), + &window); + } + + if (!GTK_WIDGET_VISIBLE (window)) + gtk_widget_show_all (window); + else + gtk_widget_destroy (window); +} + +/* * Big windows and guffaw scrolling */ @@ -12860,6 +13112,7 @@ struct { gboolean do_not_benchmark; } buttons[] = { + { "alpha window", create_alpha_window }, #ifdef G_OS_WIN32 /* dog slow on NT, no working at all on 9x */ { "big windows", create_big_windows, TRUE }, |