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https://gitlab.gnome.org/GNOME/gtk.git
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iconview: Redo size requests
Instead of just returning the last allocated numbers, we now compute the proper sizes from scratch. This is a bit less trivial, but it results in proper height-for-width handling.
This commit is contained in:
Benjamin Otte
parent
63ddb3f2c7
commit
65ad492c24
@ -66,8 +66,6 @@
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#define SCROLL_EDGE_SIZE 15
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#define GTK_ICON_VIEW_PRIORITY_LAYOUT (GDK_PRIORITY_REDRAW + 5)
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typedef struct _GtkIconViewChild GtkIconViewChild;
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struct _GtkIconViewChild
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{
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@ -138,12 +136,23 @@ static void gtk_icon_view_unrealize (GtkWidget
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static void gtk_icon_view_style_updated (GtkWidget *widget);
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static void gtk_icon_view_state_flags_changed (GtkWidget *widget,
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GtkStateFlags previous_state);
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static GtkSizeRequestMode gtk_icon_view_get_request_mode (GtkWidget *widget);
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static void gtk_icon_view_get_preferred_width (GtkWidget *widget,
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gint *minimum,
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gint *natural);
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static void gtk_icon_view_get_preferred_width_for_height
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(GtkWidget *widget,
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gint height,
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gint *minimum,
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gint *natural);
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static void gtk_icon_view_get_preferred_height (GtkWidget *widget,
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gint *minimum,
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gint *natural);
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static void gtk_icon_view_get_preferred_height_for_width
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(GtkWidget *widget,
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gint width,
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gint *minimum,
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gint *natural);
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static void gtk_icon_view_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation);
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static gboolean gtk_icon_view_draw (GtkWidget *widget,
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@ -197,7 +206,6 @@ static void gtk_icon_view_queue_draw_path (GtkIco
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GtkTreePath *path);
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static void gtk_icon_view_queue_draw_item (GtkIconView *icon_view,
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GtkIconViewItem *item);
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static void gtk_icon_view_queue_layout (GtkIconView *icon_view);
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static void gtk_icon_view_start_rubberbanding (GtkIconView *icon_view,
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GdkDevice *device,
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gint x,
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@ -349,8 +357,11 @@ gtk_icon_view_class_init (GtkIconViewClass *klass)
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widget_class->realize = gtk_icon_view_realize;
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widget_class->unrealize = gtk_icon_view_unrealize;
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widget_class->style_updated = gtk_icon_view_style_updated;
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widget_class->get_request_mode = gtk_icon_view_get_request_mode;
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widget_class->get_preferred_width = gtk_icon_view_get_preferred_width;
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widget_class->get_preferred_height = gtk_icon_view_get_preferred_height;
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widget_class->get_preferred_width_for_height = gtk_icon_view_get_preferred_width_for_height;
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widget_class->get_preferred_height_for_width = gtk_icon_view_get_preferred_height_for_width;
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widget_class->size_allocate = gtk_icon_view_size_allocate;
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widget_class->draw = gtk_icon_view_draw;
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widget_class->motion_notify_event = gtk_icon_view_motion;
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@ -1216,12 +1227,6 @@ gtk_icon_view_destroy (GtkWidget *widget)
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gtk_icon_view_set_model (icon_view, NULL);
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if (icon_view->priv->layout_idle_id != 0)
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{
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g_source_remove (icon_view->priv->layout_idle_id);
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icon_view->priv->layout_idle_id = 0;
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}
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if (icon_view->priv->scroll_to_path != NULL)
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{
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gtk_tree_row_reference_free (icon_view->priv->scroll_to_path);
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@ -1360,20 +1365,253 @@ gtk_icon_view_style_updated (GtkWidget *widget)
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gtk_widget_queue_resize (widget);
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}
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static void
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gtk_icon_view_get_preferred_width (GtkWidget *widget,
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gint *minimum,
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gint *natural)
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static gint
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gtk_icon_view_get_n_items (GtkIconView *icon_view)
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{
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*minimum = *natural = GTK_ICON_VIEW (widget)->priv->width;
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GtkIconViewPrivate *priv = icon_view->priv;
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if (priv->model == NULL)
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return 0;
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return gtk_tree_model_iter_n_children (priv->model, NULL);
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}
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static void
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gtk_icon_view_get_preferred_height (GtkWidget *widget,
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gint *minimum,
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gint *natural)
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cell_area_get_preferred_size (GtkIconView *icon_view,
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GtkCellAreaContext *context,
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GtkOrientation orientation,
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gint for_size,
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gint *minimum,
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gint *natural)
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{
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*minimum = *natural = GTK_ICON_VIEW (widget)->priv->height;
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if (orientation == GTK_ORIENTATION_HORIZONTAL)
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{
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if (for_size > 0)
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gtk_cell_area_get_preferred_width_for_height (icon_view->priv->cell_area,
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context,
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GTK_WIDGET (icon_view),
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for_size,
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minimum, natural);
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else
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gtk_cell_area_get_preferred_width (icon_view->priv->cell_area,
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context,
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GTK_WIDGET (icon_view),
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minimum, natural);
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}
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else
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{
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if (for_size > 0)
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gtk_cell_area_get_preferred_height_for_width (icon_view->priv->cell_area,
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context,
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GTK_WIDGET (icon_view),
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for_size,
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minimum, natural);
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else
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gtk_cell_area_get_preferred_height (icon_view->priv->cell_area,
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context,
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GTK_WIDGET (icon_view),
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minimum, natural);
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}
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}
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static void
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gtk_icon_view_get_preferred_item_size (GtkIconView *icon_view,
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GtkOrientation orientation,
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gint for_size,
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gint *minimum,
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gint *natural)
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{
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GtkIconViewPrivate *priv = icon_view->priv;
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GtkCellAreaContext *context;
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GList *items;
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context = gtk_cell_area_create_context (priv->cell_area);
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for_size -= 2 * priv->item_padding;
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if (for_size > 0)
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{
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/* This is necessary for the context to work properly */
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for (items = priv->items; items; items = items->next)
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{
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GtkIconViewItem *item = items->data;
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_gtk_icon_view_set_cell_data (icon_view, item);
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cell_area_get_preferred_size (icon_view, context, 1 - orientation, -1, NULL, NULL);
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}
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}
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for (items = priv->items; items; items = items->next)
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{
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GtkIconViewItem *item = items->data;
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_gtk_icon_view_set_cell_data (icon_view, item);
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cell_area_get_preferred_size (icon_view, context, orientation, for_size, NULL, NULL);
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}
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cell_area_get_preferred_size (icon_view, context, orientation, for_size, minimum, natural);
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if (minimum)
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*minimum += 2 * priv->item_padding;
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if (natural)
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*natural += 2 * priv->item_padding;
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g_object_unref (context);
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}
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static void
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gtk_icon_view_compute_n_items_for_size (GtkIconView *icon_view,
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GtkOrientation orientation,
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gint size,
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gint *min_columns,
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gint *max_columns)
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{
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GtkIconViewPrivate *priv = icon_view->priv;
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int minimum, natural;
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if (priv->columns > 0)
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{
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*min_columns = priv->columns;
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*max_columns = priv->columns;
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return;
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}
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size -= 2 * priv->margin;
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gtk_icon_view_get_preferred_item_size (icon_view, orientation, -1, &minimum, &natural);
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if (orientation == GTK_ORIENTATION_HORIZONTAL)
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{
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size += priv->column_spacing;
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minimum += priv->column_spacing;
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natural += priv->column_spacing;
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}
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else
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{
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size += priv->row_spacing;
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minimum += priv->row_spacing;
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natural += priv->row_spacing;
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}
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if (size <= minimum)
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*max_columns = 1;
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else
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*max_columns = size / minimum;
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if (size <= natural)
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*min_columns = 1;
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else
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*min_columns = size / natural;
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}
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static GtkSizeRequestMode
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gtk_icon_view_get_request_mode (GtkWidget *widget)
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{
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return GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH;
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}
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static void
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gtk_icon_view_get_preferred_width (GtkWidget *widget,
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gint *minimum,
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gint *natural)
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{
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GtkIconView *icon_view = GTK_ICON_VIEW (widget);
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GtkIconViewPrivate *priv = icon_view->priv;
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int item_min, item_nat;
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gtk_icon_view_get_preferred_item_size (icon_view, GTK_ORIENTATION_HORIZONTAL, -1, &item_min, &item_nat);
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if (priv->columns > 0)
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{
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*minimum = item_min * priv->columns + priv->column_spacing * (priv->columns - 1);
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*natural = item_nat * priv->columns + priv->column_spacing * (priv->columns - 1);
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}
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else
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{
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int n_items = gtk_icon_view_get_n_items (icon_view);
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*minimum = n_items ? item_min : 0;
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*natural = item_nat * n_items + priv->column_spacing * (n_items - 1);
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}
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*minimum += 2 * priv->margin;
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*natural += 2 * priv->margin;
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}
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static void
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gtk_icon_view_get_preferred_width_for_height (GtkWidget *widget,
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gint height,
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gint *minimum,
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gint *natural)
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{
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GtkIconView *icon_view = GTK_ICON_VIEW (widget);
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GtkIconViewPrivate *priv = icon_view->priv;
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int item_min, item_nat, min_rows, max_rows, n_items;
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gtk_icon_view_compute_n_items_for_size (icon_view, GTK_ORIENTATION_VERTICAL, height, &min_rows, &max_rows);
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n_items = gtk_icon_view_get_n_items (icon_view);
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height = height + priv->row_spacing - 2 * priv->margin;
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gtk_icon_view_get_preferred_item_size (icon_view, GTK_ORIENTATION_HORIZONTAL, height / max_rows - priv->row_spacing, &item_min, NULL);
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*minimum = item_min * ((n_items + max_rows - 1) / max_rows);
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gtk_icon_view_get_preferred_item_size (icon_view, GTK_ORIENTATION_HORIZONTAL, height / min_rows - priv->row_spacing, NULL, &item_nat);
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*natural = item_nat * ((n_items + min_rows - 1) / min_rows);
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*minimum += 2 * priv->margin;
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*natural += 2 * priv->margin;
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}
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static void
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gtk_icon_view_get_preferred_height (GtkWidget *widget,
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gint *minimum,
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gint *natural)
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{
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GtkIconView *icon_view = GTK_ICON_VIEW (widget);
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GtkIconViewPrivate *priv = icon_view->priv;
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int item_min, item_nat, n_items;
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gtk_icon_view_get_preferred_item_size (icon_view, GTK_ORIENTATION_VERTICAL, -1, &item_min, &item_nat);
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n_items = gtk_icon_view_get_n_items (icon_view);
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if (priv->columns > 0)
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{
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int n_rows = (n_items + priv->columns - 1) / priv->columns;
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*minimum = item_min * n_rows + priv->row_spacing * (n_rows - 1);
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*natural = item_nat * n_rows + priv->row_spacing * (n_rows - 1);
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}
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else
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{
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*minimum = n_items ? item_min : 0;
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*natural = item_nat * n_items + priv->row_spacing * (n_items - 1);
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}
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*minimum += 2 * priv->margin;
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*natural += 2 * priv->margin;
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}
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static void
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gtk_icon_view_get_preferred_height_for_width (GtkWidget *widget,
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gint width,
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gint *minimum,
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gint *natural)
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{
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GtkIconView *icon_view = GTK_ICON_VIEW (widget);
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GtkIconViewPrivate *priv = icon_view->priv;
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int item_min, item_nat, min_columns, max_columns, n_items;
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gtk_icon_view_compute_n_items_for_size (icon_view, GTK_ORIENTATION_HORIZONTAL, width, &min_columns, &max_columns);
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n_items = gtk_icon_view_get_n_items (icon_view);
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width = width + priv->column_spacing - 2 * priv->margin;
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gtk_icon_view_get_preferred_item_size (icon_view, GTK_ORIENTATION_VERTICAL, width / max_columns - priv->column_spacing, &item_min, NULL);
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*minimum = (item_min + priv->row_spacing) * ((n_items + max_columns - 1) / max_columns) - priv->row_spacing;
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gtk_icon_view_get_preferred_item_size (icon_view, GTK_ORIENTATION_VERTICAL, width / min_columns - priv->column_spacing, NULL, &item_nat);
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*natural = (item_nat + priv->row_spacing) * ((n_items + min_columns - 1) / min_columns) - priv->row_spacing;
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*minimum += 2 * priv->margin;
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*natural += 2 * priv->margin;
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}
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static void
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@ -1398,6 +1636,8 @@ gtk_icon_view_size_allocate (GtkWidget *widget,
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gtk_widget_set_allocation (widget, allocation);
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gtk_icon_view_layout (icon_view);
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if (gtk_widget_get_realized (widget))
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{
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gdk_window_move_resize (gtk_widget_get_window (widget),
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@ -2640,12 +2880,6 @@ gtk_icon_view_layout (GtkIconView *icon_view)
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gint item_width;
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gboolean size_changed = FALSE;
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if (icon_view->priv->layout_idle_id != 0)
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{
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g_source_remove (icon_view->priv->layout_idle_id);
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icon_view->priv->layout_idle_id = 0;
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}
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if (icon_view->priv->model == NULL)
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return;
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@ -2773,7 +3007,7 @@ gtk_icon_view_invalidate_sizes (GtkIconView *icon_view)
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}
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/* Re-layout the items */
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gtk_icon_view_queue_layout (icon_view);
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gtk_widget_queue_resize (GTK_WIDGET (icon_view));
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}
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static void
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@ -2930,31 +3164,6 @@ gtk_icon_view_queue_draw_item (GtkIconView *icon_view,
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gdk_window_invalidate_rect (icon_view->priv->bin_window, &rect, TRUE);
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}
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static gboolean
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layout_callback (gpointer user_data)
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{
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GtkIconView *icon_view;
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icon_view = GTK_ICON_VIEW (user_data);
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icon_view->priv->layout_idle_id = 0;
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gtk_icon_view_layout (icon_view);
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return FALSE;
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}
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static void
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gtk_icon_view_queue_layout (GtkIconView *icon_view)
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{
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if (icon_view->priv->layout_idle_id != 0)
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return;
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icon_view->priv->layout_idle_id =
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gdk_threads_add_idle_full (GTK_ICON_VIEW_PRIORITY_LAYOUT,
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layout_callback, icon_view, NULL);
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}
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void
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_gtk_icon_view_set_cursor_item (GtkIconView *icon_view,
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GtkIconViewItem *item,
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@ -3215,7 +3424,7 @@ gtk_icon_view_row_inserted (GtkTreeModel *model,
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verify_items (icon_view);
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gtk_icon_view_queue_layout (icon_view);
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gtk_widget_queue_resize (GTK_WIDGET (icon_view));
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}
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static void
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@ -3266,7 +3475,7 @@ gtk_icon_view_row_deleted (GtkTreeModel *model,
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verify_items (icon_view);
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gtk_icon_view_queue_layout (icon_view);
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gtk_widget_queue_resize (GTK_WIDGET (icon_view));
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if (emit)
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g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
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@ -3314,7 +3523,7 @@ gtk_icon_view_rows_reordered (GtkTreeModel *model,
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g_list_free (icon_view->priv->items);
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icon_view->priv->items = items;
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gtk_icon_view_queue_layout (icon_view);
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gtk_widget_queue_resize (GTK_WIDGET (icon_view));
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verify_items (icon_view);
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}
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@ -4763,14 +4972,11 @@ gtk_icon_view_set_model (GtkIconView *icon_view,
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icon_view);
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gtk_icon_view_build_items (icon_view);
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gtk_icon_view_layout (icon_view);
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}
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g_object_notify (G_OBJECT (icon_view), "model");
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if (gtk_widget_get_realized (GTK_WIDGET (icon_view)))
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gtk_widget_queue_resize (GTK_WIDGET (icon_view));
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gtk_widget_queue_resize (GTK_WIDGET (icon_view));
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}
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/**
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@ -5426,7 +5632,7 @@ gtk_icon_view_set_columns (GtkIconView *icon_view,
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if (icon_view->priv->cell_area)
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gtk_cell_area_stop_editing (icon_view->priv->cell_area, TRUE);
|
||||
|
||||
gtk_icon_view_queue_layout (icon_view);
|
||||
gtk_widget_queue_resize (GTK_WIDGET (icon_view));
|
||||
|
||||
g_object_notify (G_OBJECT (icon_view), "columns");
|
||||
}
|
||||
|
||||
@ -50,8 +50,6 @@ struct _GtkIconViewPrivate
|
||||
|
||||
GtkSelectionMode selection_mode;
|
||||
|
||||
guint layout_idle_id;
|
||||
|
||||
GdkWindow *bin_window;
|
||||
|
||||
GList *children;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user