diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/testgtk.c | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/tests/testgtk.c b/tests/testgtk.c index b52af08283..3a1f6791a6 100644 --- a/tests/testgtk.c +++ b/tests/testgtk.c @@ -2689,6 +2689,219 @@ void create_labels (GtkWidget *widget) gtk_widget_destroy (window); } +static void +on_angle_scale_changed (GtkRange *range, + GtkLabel *label) +{ + gtk_label_set_angle (GTK_LABEL (label), gtk_range_get_value (range)); +} + +static void +create_rotated_label (GtkWidget *widget) +{ + static GtkWidget *window = NULL; + GtkWidget *vbox; + GtkWidget *hscale; + GtkWidget *label; + GtkWidget *scale_label; + GtkWidget *scale_hbox; + + if (!window) + { + window = gtk_dialog_new_with_buttons ("Rotated Label", + GTK_WINDOW (gtk_widget_get_toplevel (widget)), 0, + GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE, + NULL); + + gtk_window_set_resizable (GTK_WINDOW (window), FALSE); + + gtk_window_set_screen (GTK_WINDOW (window), + gtk_widget_get_screen (widget)); + + g_signal_connect (window, "response", + G_CALLBACK (gtk_object_destroy), NULL); + g_signal_connect (window, "destroy", + G_CALLBACK (gtk_widget_destroyed), &window); + + vbox = gtk_vbox_new (FALSE, 5); + gtk_box_pack_start (GTK_BOX (GTK_DIALOG (window)->vbox), vbox, TRUE, TRUE, 0); + gtk_container_set_border_width (GTK_CONTAINER (vbox), 10); + + label = gtk_label_new (NULL); + gtk_label_set_markup (GTK_LABEL (label), "Hello World\n<i>Rotate</i> <span underline='single' foreground='blue'>me</span>"); + gtk_box_pack_start (GTK_BOX (vbox), label, TRUE, TRUE, 0); + + scale_hbox = gtk_hbox_new (FALSE, 0); + gtk_box_pack_start (GTK_BOX (vbox), scale_hbox, FALSE, FALSE, 0); + + scale_label = gtk_label_new (NULL); + gtk_label_set_markup (GTK_LABEL (scale_label), "<i>Angle: </i>"); + gtk_box_pack_start (GTK_BOX (scale_hbox), scale_label, FALSE, FALSE, 0); + + hscale = gtk_hscale_new_with_range (0, 360, 5); + g_signal_connect (hscale, "value-changed", + G_CALLBACK (on_angle_scale_changed), label); + + gtk_range_set_value (GTK_RANGE (hscale), 45); + gtk_widget_set_usize (hscale, 200, -1); + gtk_box_pack_start (GTK_BOX (scale_hbox), hscale, TRUE, TRUE, 0); + } + + if (!GTK_WIDGET_VISIBLE (window)) + gtk_widget_show_all (window); + else + gtk_widget_destroy (window); +} + +#define DEFAULT_TEXT_RADIUS 200 + +static void +on_rotated_text_unrealize (GtkWidget *widget) +{ + g_object_set_data (G_OBJECT (widget), "text-gc", NULL); +} + +static gboolean +on_rotated_text_expose (GtkWidget *widget, + GdkEventExpose *event, + GdkPixbuf *tile_pixbuf) +{ + static const gchar *words[] = { "The", "grand", "old", "Duke", "of", "York", + "had", "10,000", "men" }; + PangoRenderer *renderer; + GdkGC *gc; + int n_words; + int i; + double radius; + PangoMatrix matrix = PANGO_MATRIX_INIT; + PangoLayout *layout; + PangoContext *context; + PangoFontDescription *desc; + + gc = g_object_get_data (G_OBJECT (widget), "text-gc"); + if (!gc) + { + static GdkColor black = { 0, 0, 0, 0 }; + + gc = gdk_gc_new (widget->window); + gdk_gc_set_rgb_fg_color (gc, &black); + + if (tile_pixbuf) + { + GdkPixmap *tile; + + gint width = gdk_pixbuf_get_width (tile_pixbuf); + gint height = gdk_pixbuf_get_height (tile_pixbuf); + + tile = gdk_pixmap_new (widget->window, width, height, -1); + gdk_draw_pixbuf (tile, gc, tile_pixbuf, + 0, 0, 0, 0, width, height, + GDK_RGB_DITHER_NORMAL, 0, 0); + + gdk_gc_set_tile (gc, tile); + gdk_gc_set_fill (gc, GDK_TILED); + + g_object_unref (tile); + } + + g_object_set_data_full (G_OBJECT (widget), "text-gc", gc, (GDestroyNotify)g_object_unref); + } + + renderer = gdk_pango_renderer_get_default (gtk_widget_get_screen (widget)); + gdk_pango_renderer_set_drawable (GDK_PANGO_RENDERER (renderer), widget->window); + gdk_pango_renderer_set_gc (GDK_PANGO_RENDERER (renderer), gc); + + radius = MIN (widget->allocation.width, widget->allocation.height) / 2.; + + pango_matrix_translate (&matrix, + radius + (widget->allocation.width - 2 * radius) / 2, + radius + (widget->allocation.height - 2 * radius) / 2); + pango_matrix_scale (&matrix, radius / DEFAULT_TEXT_RADIUS, radius / DEFAULT_TEXT_RADIUS); + + context = gtk_widget_get_pango_context (widget); + layout = pango_layout_new (context); + desc = pango_font_description_from_string ("Sans Bold 30"); + pango_layout_set_font_description (layout, desc); + pango_font_description_free (desc); + + n_words = G_N_ELEMENTS (words); + for (i = 0; i < n_words; i++) + { + PangoMatrix rotated_matrix = matrix; + int width, height; + + pango_matrix_rotate (&rotated_matrix, - (360. * i) / n_words); + + pango_context_set_matrix (context, &rotated_matrix); + pango_layout_context_changed (layout); + pango_layout_set_text (layout, words[i], -1); + + pango_layout_get_size (layout, &width, &height); + + pango_renderer_draw_layout (renderer, layout, + - width / 2, - DEFAULT_TEXT_RADIUS * PANGO_SCALE); + } + + gdk_pango_renderer_set_drawable (GDK_PANGO_RENDERER (renderer), NULL); + gdk_pango_renderer_set_gc (GDK_PANGO_RENDERER (renderer), NULL); + + g_object_unref (layout); + + return FALSE; +} + +static void +create_rotated_text (GtkWidget *widget) +{ + static GtkWidget *window = NULL; + + if (!window) + { + const GdkColor white = { 0, 0xffff, 0xffff, 0xffff }; + GtkRequisition requisition; + GtkWidget *drawing_area; + GdkPixbuf *tile_pixbuf; + + window = gtk_dialog_new_with_buttons ("Rotated Text", + GTK_WINDOW (gtk_widget_get_toplevel (widget)), 0, + GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE, + NULL); + + gtk_window_set_resizable (GTK_WINDOW (window), TRUE); + + gtk_window_set_screen (GTK_WINDOW (window), + gtk_widget_get_screen (widget)); + + g_signal_connect (window, "response", + G_CALLBACK (gtk_object_destroy), NULL); + g_signal_connect (window, "destroy", + G_CALLBACK (gtk_widget_destroyed), &window); + + drawing_area = gtk_drawing_area_new (); + gtk_box_pack_start (GTK_BOX (GTK_DIALOG (window)->vbox), drawing_area, TRUE, TRUE, 0); + gtk_widget_modify_bg (drawing_area, GTK_STATE_NORMAL, &white); + + tile_pixbuf = gdk_pixbuf_new_from_file ("marble.xpm", NULL); + + g_signal_connect (drawing_area, "expose-event", + G_CALLBACK (on_rotated_text_expose), tile_pixbuf); + g_signal_connect (drawing_area, "unrealize", + G_CALLBACK (on_rotated_text_unrealize), NULL); + + gtk_widget_show_all (GTK_BIN (window)->child); + + gtk_widget_set_size_request (drawing_area, DEFAULT_TEXT_RADIUS * 2, DEFAULT_TEXT_RADIUS * 2); + gtk_widget_size_request (window, &requisition); + gtk_widget_set_size_request (drawing_area, -1, -1); + gtk_window_resize (GTK_WINDOW (window), requisition.width, requisition.height); + } + + if (!GTK_WIDGET_VISIBLE (window)) + gtk_widget_show (window); + else + gtk_widget_destroy (window); +} + /* * Reparent demo */ @@ -12695,6 +12908,8 @@ struct { { "rc file", create_rc_file }, { "reparent", create_reparent }, { "resize grips", create_resize_grips }, + { "rotated label", create_rotated_label }, + { "rotated text", create_rotated_text }, { "rulers", create_rulers }, { "saved position", create_saved_position }, { "scrolled windows", create_scrolled_windows }, |