/* gtkellview.c * Copyright (C) 2002, 2003 Kristian Rietveld * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #include "config.h" #include #include "gtkcellview.h" #include "gtkcelllayout.h" #include "gtkintl.h" #include "gtkcellrenderertext.h" #include "gtkcellrendererpixbuf.h" #include "gtksizerequest.h" #include "gtkcellsizerequest.h" #include "gtkprivate.h" #include #include "gtkbuildable.h" typedef struct _GtkCellViewCellInfo GtkCellViewCellInfo; struct _GtkCellViewCellInfo { GtkCellRenderer *cell; gint requested_width; gint natural_width; gint real_width; guint expand : 1; guint pack : 1; GSList *attributes; GtkCellLayoutDataFunc func; gpointer func_data; GDestroyNotify destroy; }; struct _GtkCellViewPrivate { GtkTreeModel *model; GtkTreeRowReference *displayed_row; GList *cell_list; gint spacing; GdkColor background; gboolean background_set; }; static void gtk_cell_view_cell_layout_init (GtkCellLayoutIface *iface); static void gtk_cell_view_get_property (GObject *object, guint param_id, GValue *value, GParamSpec *pspec); static void gtk_cell_view_set_property (GObject *object, guint param_id, const GValue *value, GParamSpec *pspec); static void gtk_cell_view_finalize (GObject *object); static void gtk_cell_view_size_allocate (GtkWidget *widget, GtkAllocation *allocation); static gboolean gtk_cell_view_draw (GtkWidget *widget, cairo_t *cr); static void gtk_cell_view_set_value (GtkCellView *cell_view, GtkCellRenderer *renderer, gchar *property, GValue *value); static GtkCellViewCellInfo *gtk_cell_view_get_cell_info (GtkCellView *cellview, GtkCellRenderer *renderer); static void gtk_cell_view_set_cell_data (GtkCellView *cell_view); static void gtk_cell_view_cell_layout_pack_start (GtkCellLayout *layout, GtkCellRenderer *renderer, gboolean expand); static void gtk_cell_view_cell_layout_pack_end (GtkCellLayout *layout, GtkCellRenderer *renderer, gboolean expand); static void gtk_cell_view_cell_layout_add_attribute (GtkCellLayout *layout, GtkCellRenderer *renderer, const gchar *attribute, gint column); static void gtk_cell_view_cell_layout_clear (GtkCellLayout *layout); static void gtk_cell_view_cell_layout_clear_attributes (GtkCellLayout *layout, GtkCellRenderer *renderer); static void gtk_cell_view_cell_layout_set_cell_data_func (GtkCellLayout *layout, GtkCellRenderer *cell, GtkCellLayoutDataFunc func, gpointer func_data, GDestroyNotify destroy); static void gtk_cell_view_cell_layout_reorder (GtkCellLayout *layout, GtkCellRenderer *cell, gint position); static GList * gtk_cell_view_cell_layout_get_cells (GtkCellLayout *layout); /* buildable */ static void gtk_cell_view_buildable_init (GtkBuildableIface *iface); static gboolean gtk_cell_view_buildable_custom_tag_start (GtkBuildable *buildable, GtkBuilder *builder, GObject *child, const gchar *tagname, GMarkupParser *parser, gpointer *data); static void gtk_cell_view_buildable_custom_tag_end (GtkBuildable *buildable, GtkBuilder *builder, GObject *child, const gchar *tagname, gpointer *data); static void gtk_cell_view_size_request_init (GtkSizeRequestIface *iface); static void gtk_cell_view_get_width (GtkSizeRequest *widget, gint *minimum_size, gint *natural_size); static void gtk_cell_view_get_height (GtkSizeRequest *widget, gint *minimum_size, gint *natural_size); static void gtk_cell_view_get_width_for_height (GtkSizeRequest *widget, gint avail_size, gint *minimum_size, gint *natural_size); static void gtk_cell_view_get_height_for_width (GtkSizeRequest *widget, gint avail_size, gint *minimum_size, gint *natural_size); static GtkBuildableIface *parent_buildable_iface; enum { PROP_0, PROP_BACKGROUND, PROP_BACKGROUND_GDK, PROP_BACKGROUND_SET, PROP_MODEL }; G_DEFINE_TYPE_WITH_CODE (GtkCellView, gtk_cell_view, GTK_TYPE_WIDGET, G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT, gtk_cell_view_cell_layout_init) G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE, gtk_cell_view_buildable_init) G_IMPLEMENT_INTERFACE (GTK_TYPE_SIZE_REQUEST, gtk_cell_view_size_request_init)) static void gtk_cell_view_class_init (GtkCellViewClass *klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass); gobject_class->get_property = gtk_cell_view_get_property; gobject_class->set_property = gtk_cell_view_set_property; gobject_class->finalize = gtk_cell_view_finalize; widget_class->draw = gtk_cell_view_draw; widget_class->size_allocate = gtk_cell_view_size_allocate; /* properties */ g_object_class_install_property (gobject_class, PROP_BACKGROUND, g_param_spec_string ("background", P_("Background color name"), P_("Background color as a string"), NULL, GTK_PARAM_WRITABLE)); g_object_class_install_property (gobject_class, PROP_BACKGROUND_GDK, g_param_spec_boxed ("background-gdk", P_("Background color"), P_("Background color as a GdkColor"), GDK_TYPE_COLOR, GTK_PARAM_READWRITE)); /** * GtkCellView:model * * The model for cell view * * since 2.10 */ g_object_class_install_property (gobject_class, PROP_MODEL, g_param_spec_object ("model", P_("CellView model"), P_("The model for cell view"), GTK_TYPE_TREE_MODEL, GTK_PARAM_READWRITE)); #define ADD_SET_PROP(propname, propval, nick, blurb) g_object_class_install_property (gobject_class, propval, g_param_spec_boolean (propname, nick, blurb, FALSE, GTK_PARAM_READWRITE)) ADD_SET_PROP ("background-set", PROP_BACKGROUND_SET, P_("Background set"), P_("Whether this tag affects the background color")); g_type_class_add_private (gobject_class, sizeof (GtkCellViewPrivate)); } static void gtk_cell_view_buildable_init (GtkBuildableIface *iface) { parent_buildable_iface = g_type_interface_peek_parent (iface); iface->add_child = _gtk_cell_layout_buildable_add_child; iface->custom_tag_start = gtk_cell_view_buildable_custom_tag_start; iface->custom_tag_end = gtk_cell_view_buildable_custom_tag_end; } static void gtk_cell_view_cell_layout_init (GtkCellLayoutIface *iface) { iface->pack_start = gtk_cell_view_cell_layout_pack_start; iface->pack_end = gtk_cell_view_cell_layout_pack_end; iface->clear = gtk_cell_view_cell_layout_clear; iface->add_attribute = gtk_cell_view_cell_layout_add_attribute; iface->set_cell_data_func = gtk_cell_view_cell_layout_set_cell_data_func; iface->clear_attributes = gtk_cell_view_cell_layout_clear_attributes; iface->reorder = gtk_cell_view_cell_layout_reorder; iface->get_cells = gtk_cell_view_cell_layout_get_cells; } static void gtk_cell_view_get_property (GObject *object, guint param_id, GValue *value, GParamSpec *pspec) { GtkCellView *view = GTK_CELL_VIEW (object); switch (param_id) { case PROP_BACKGROUND_GDK: { GdkColor color; color = view->priv->background; g_value_set_boxed (value, &color); } break; case PROP_BACKGROUND_SET: g_value_set_boolean (value, view->priv->background_set); break; case PROP_MODEL: g_value_set_object (value, view->priv->model); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec); break; } } static void gtk_cell_view_set_property (GObject *object, guint param_id, const GValue *value, GParamSpec *pspec) { GtkCellView *view = GTK_CELL_VIEW (object); switch (param_id) { case PROP_BACKGROUND: { GdkColor color; if (!g_value_get_string (value)) gtk_cell_view_set_background_color (view, NULL); else if (gdk_color_parse (g_value_get_string (value), &color)) gtk_cell_view_set_background_color (view, &color); else g_warning ("Don't know color `%s'", g_value_get_string (value)); g_object_notify (object, "background-gdk"); } break; case PROP_BACKGROUND_GDK: gtk_cell_view_set_background_color (view, g_value_get_boxed (value)); break; case PROP_BACKGROUND_SET: view->priv->background_set = g_value_get_boolean (value); break; case PROP_MODEL: gtk_cell_view_set_model (view, g_value_get_object (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec); break; } } static void gtk_cell_view_init (GtkCellView *cellview) { GtkCellViewPrivate *priv; cellview->priv = G_TYPE_INSTANCE_GET_PRIVATE (cellview, GTK_TYPE_CELL_VIEW, GtkCellViewPrivate); priv = cellview->priv; gtk_widget_set_has_window (GTK_WIDGET (cellview), FALSE); } static void gtk_cell_view_finalize (GObject *object) { GtkCellView *cellview = GTK_CELL_VIEW (object); gtk_cell_view_cell_layout_clear (GTK_CELL_LAYOUT (cellview)); if (cellview->priv->model) g_object_unref (cellview->priv->model); if (cellview->priv->displayed_row) gtk_tree_row_reference_free (cellview->priv->displayed_row); G_OBJECT_CLASS (gtk_cell_view_parent_class)->finalize (object); } static void gtk_cell_view_size_allocate (GtkWidget *widget, GtkAllocation *allocation) { GtkCellView *cellview; GtkRequestedSize *sizes; GList *list; gint n_visible_cells, n_expand_cells; gint avail_width = 0; gint extra_per_cell, extra_extra, i; gboolean first_cell = TRUE; gtk_widget_set_allocation (widget, allocation); cellview = GTK_CELL_VIEW (widget); avail_width = allocation->width; /* Count visible/expand children */ for (n_visible_cells = 0, n_expand_cells = 0, list = cellview->priv->cell_list; list; list = list->next) { GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data; n_visible_cells++; if (info->expand) n_expand_cells++; } sizes = g_new0 (GtkRequestedSize, n_visible_cells); /* checking how much extra space we have */ for (i = 0, list = cellview->priv->cell_list; list; list = list->next) { GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data; if (!gtk_cell_renderer_get_visible (info->cell)) continue; sizes[i].data = info; sizes[i].minimum_size = info->requested_width; sizes[i].natural_size = info->natural_width; if (!first_cell) avail_width -= cellview->priv->spacing; avail_width -= sizes[i].minimum_size; first_cell = FALSE; i++; } avail_width = gtk_distribute_natural_allocation (MAX (0, avail_width), n_visible_cells, sizes); /* Deal with any expand space... */ if (n_expand_cells > 0) { extra_per_cell = avail_width / n_expand_cells; extra_extra = avail_width % n_expand_cells; } else /* Everything just left-aligned if no cells expand */ extra_per_cell = extra_extra = 0; for (i = 0, list = cellview->priv->cell_list; list; list = list->next) { GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data; if (!gtk_cell_renderer_get_visible (info->cell)) continue; info->real_width = sizes[i].minimum_size; if (info->expand) { info->real_width += extra_per_cell; if (extra_extra) { info->real_width++; extra_extra--; } } /* increment index into sizes for visible children */ i++; } g_free (sizes); } static gboolean gtk_cell_view_draw (GtkWidget *widget, cairo_t *cr) { GList *list; GtkCellView *cellview; GdkRectangle area; GtkCellRendererState state; gboolean rtl = (gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL); GtkPackType packing; int width; cellview = GTK_CELL_VIEW (widget); /* render cells */ area.x = 0; area.y = 0; area.width = width = gtk_widget_get_allocated_width (widget); area.height = gtk_widget_get_allocated_height (widget); /* "blank" background */ if (cellview->priv->background_set) { gdk_cairo_rectangle (cr, &area); gdk_cairo_set_source_color (cr, &cellview->priv->background); cairo_fill (cr); } /* set cell data (if available) */ if (cellview->priv->displayed_row) gtk_cell_view_set_cell_data (cellview); else if (cellview->priv->model) return FALSE; if (gtk_widget_get_state (widget) == GTK_STATE_PRELIGHT) state = GTK_CELL_RENDERER_PRELIT; else if (gtk_widget_get_state (widget) == GTK_STATE_INSENSITIVE) state = GTK_CELL_RENDERER_INSENSITIVE; else state = 0; for (packing = GTK_PACK_START; packing <= GTK_PACK_END; ++packing) { if (packing == GTK_PACK_START) area.x = rtl ? width : 0; else area.x = rtl ? 0 : width; for (list = cellview->priv->cell_list; list; list = list->next) { GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data; if (info->pack != packing) continue; if (!gtk_cell_renderer_get_visible (info->cell)) continue; area.width = info->real_width; if ((packing == GTK_PACK_START && rtl) || (packing == GTK_PACK_END && !rtl)) area.x -= area.width; gtk_cell_renderer_render_cairo (info->cell, cr, widget, /* FIXME! */ &area, &area, state); if ((packing == GTK_PACK_START && !rtl) || (packing == GTK_PACK_END && rtl)) { area.x += area.width; area.x += cellview->priv->spacing; } else area.x -= cellview->priv->spacing; } } return FALSE; } static GtkCellViewCellInfo * gtk_cell_view_get_cell_info (GtkCellView *cellview, GtkCellRenderer *renderer) { GList *i; for (i = cellview->priv->cell_list; i; i = i->next) { GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data; if (info->cell == renderer) return info; } return NULL; } static void gtk_cell_view_set_cell_data (GtkCellView *cell_view) { GList *i; GtkTreeIter iter; GtkTreePath *path; g_return_if_fail (cell_view->priv->displayed_row != NULL); path = gtk_tree_row_reference_get_path (cell_view->priv->displayed_row); if (!path) return; gtk_tree_model_get_iter (cell_view->priv->model, &iter, path); gtk_tree_path_free (path); for (i = cell_view->priv->cell_list; i; i = i->next) { GSList *j; GtkCellViewCellInfo *info = i->data; g_object_freeze_notify (G_OBJECT (info->cell)); for (j = info->attributes; j && j->next; j = j->next->next) { gchar *property = j->data; gint column = GPOINTER_TO_INT (j->next->data); GValue value = {0, }; gtk_tree_model_get_value (cell_view->priv->model, &iter, column, &value); g_object_set_property (G_OBJECT (info->cell), property, &value); g_value_unset (&value); } if (info->func) (* info->func) (GTK_CELL_LAYOUT (cell_view), info->cell, cell_view->priv->model, &iter, info->func_data); g_object_thaw_notify (G_OBJECT (info->cell)); } } /* GtkCellLayout implementation */ static void gtk_cell_view_cell_layout_pack_start (GtkCellLayout *layout, GtkCellRenderer *renderer, gboolean expand) { GtkCellViewCellInfo *info; GtkCellView *cellview = GTK_CELL_VIEW (layout); g_return_if_fail (!gtk_cell_view_get_cell_info (cellview, renderer)); g_object_ref_sink (renderer); info = g_slice_new0 (GtkCellViewCellInfo); info->cell = renderer; info->expand = expand ? TRUE : FALSE; info->pack = GTK_PACK_START; cellview->priv->cell_list = g_list_append (cellview->priv->cell_list, info); gtk_widget_queue_resize (GTK_WIDGET (cellview)); } static void gtk_cell_view_cell_layout_pack_end (GtkCellLayout *layout, GtkCellRenderer *renderer, gboolean expand) { GtkCellViewCellInfo *info; GtkCellView *cellview = GTK_CELL_VIEW (layout); g_return_if_fail (!gtk_cell_view_get_cell_info (cellview, renderer)); g_object_ref_sink (renderer); info = g_slice_new0 (GtkCellViewCellInfo); info->cell = renderer; info->expand = expand ? TRUE : FALSE; info->pack = GTK_PACK_END; cellview->priv->cell_list = g_list_append (cellview->priv->cell_list, info); gtk_widget_queue_resize (GTK_WIDGET (cellview)); } static void gtk_cell_view_cell_layout_add_attribute (GtkCellLayout *layout, GtkCellRenderer *renderer, const gchar *attribute, gint column) { GtkCellViewCellInfo *info; GtkCellView *cellview = GTK_CELL_VIEW (layout); info = gtk_cell_view_get_cell_info (cellview, renderer); g_return_if_fail (info != NULL); info->attributes = g_slist_prepend (info->attributes, GINT_TO_POINTER (column)); info->attributes = g_slist_prepend (info->attributes, g_strdup (attribute)); } static void gtk_cell_view_cell_layout_clear (GtkCellLayout *layout) { GtkCellView *cellview = GTK_CELL_VIEW (layout); while (cellview->priv->cell_list) { GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)cellview->priv->cell_list->data; gtk_cell_view_cell_layout_clear_attributes (layout, info->cell); g_object_unref (info->cell); g_slice_free (GtkCellViewCellInfo, info); cellview->priv->cell_list = g_list_delete_link (cellview->priv->cell_list, cellview->priv->cell_list); } } static void gtk_cell_view_cell_layout_set_cell_data_func (GtkCellLayout *layout, GtkCellRenderer *cell, GtkCellLayoutDataFunc func, gpointer func_data, GDestroyNotify destroy) { GtkCellView *cellview = GTK_CELL_VIEW (layout); GtkCellViewCellInfo *info; info = gtk_cell_view_get_cell_info (cellview, cell); g_return_if_fail (info != NULL); if (info->destroy) { GDestroyNotify d = info->destroy; info->destroy = NULL; d (info->func_data); } info->func = func; info->func_data = func_data; info->destroy = destroy; } static void gtk_cell_view_cell_layout_clear_attributes (GtkCellLayout *layout, GtkCellRenderer *renderer) { GtkCellView *cellview = GTK_CELL_VIEW (layout); GtkCellViewCellInfo *info; GSList *list; info = gtk_cell_view_get_cell_info (cellview, renderer); if (info != NULL) { list = info->attributes; while (list && list->next) { g_free (list->data); list = list->next->next; } g_slist_free (info->attributes); info->attributes = NULL; } } static void gtk_cell_view_cell_layout_reorder (GtkCellLayout *layout, GtkCellRenderer *cell, gint position) { GtkCellView *cellview = GTK_CELL_VIEW (layout); GtkCellViewCellInfo *info; GList *link; info = gtk_cell_view_get_cell_info (cellview, cell); g_return_if_fail (info != NULL); g_return_if_fail (position >= 0); link = g_list_find (cellview->priv->cell_list, info); g_return_if_fail (link != NULL); cellview->priv->cell_list = g_list_delete_link (cellview->priv->cell_list, link); cellview->priv->cell_list = g_list_insert (cellview->priv->cell_list, info, position); gtk_widget_queue_draw (GTK_WIDGET (cellview)); } /** * gtk_cell_view_new: * * Creates a new #GtkCellView widget. * * Return value: A newly created #GtkCellView widget. * * Since: 2.6 */ GtkWidget * gtk_cell_view_new (void) { GtkCellView *cellview; cellview = g_object_new (gtk_cell_view_get_type (), NULL); return GTK_WIDGET (cellview); } /** * gtk_cell_view_new_with_text: * @text: the text to display in the cell view * * Creates a new #GtkCellView widget, adds a #GtkCellRendererText * to it, and makes its show @text. * * Return value: A newly created #GtkCellView widget. * * Since: 2.6 */ GtkWidget * gtk_cell_view_new_with_text (const gchar *text) { GtkCellView *cellview; GtkCellRenderer *renderer; GValue value = {0, }; cellview = GTK_CELL_VIEW (gtk_cell_view_new ()); renderer = gtk_cell_renderer_text_new (); gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview), renderer, TRUE); g_value_init (&value, G_TYPE_STRING); g_value_set_string (&value, text); gtk_cell_view_set_value (cellview, renderer, "text", &value); g_value_unset (&value); return GTK_WIDGET (cellview); } /** * gtk_cell_view_new_with_markup: * @markup: the text to display in the cell view * * Creates a new #GtkCellView widget, adds a #GtkCellRendererText * to it, and makes it show @markup. The text can be * marked up with the Pango text * markup language. * * Return value: A newly created #GtkCellView widget. * * Since: 2.6 */ GtkWidget * gtk_cell_view_new_with_markup (const gchar *markup) { GtkCellView *cellview; GtkCellRenderer *renderer; GValue value = {0, }; cellview = GTK_CELL_VIEW (gtk_cell_view_new ()); renderer = gtk_cell_renderer_text_new (); gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview), renderer, TRUE); g_value_init (&value, G_TYPE_STRING); g_value_set_string (&value, markup); gtk_cell_view_set_value (cellview, renderer, "markup", &value); g_value_unset (&value); return GTK_WIDGET (cellview); } /** * gtk_cell_view_new_with_pixbuf: * @pixbuf: the image to display in the cell view * * Creates a new #GtkCellView widget, adds a #GtkCellRendererPixbuf * to it, and makes its show @pixbuf. * * Return value: A newly created #GtkCellView widget. * * Since: 2.6 */ GtkWidget * gtk_cell_view_new_with_pixbuf (GdkPixbuf *pixbuf) { GtkCellView *cellview; GtkCellRenderer *renderer; GValue value = {0, }; cellview = GTK_CELL_VIEW (gtk_cell_view_new ()); renderer = gtk_cell_renderer_pixbuf_new (); gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview), renderer, TRUE); g_value_init (&value, GDK_TYPE_PIXBUF); g_value_set_object (&value, pixbuf); gtk_cell_view_set_value (cellview, renderer, "pixbuf", &value); g_value_unset (&value); return GTK_WIDGET (cellview); } /** * gtk_cell_view_set_value: * @cell_view: a #GtkCellView widget * @renderer: one of the renderers of @cell_view * @property: the name of the property of @renderer to set * @value: the new value to set the property to * * Sets a property of a cell renderer of @cell_view, and * makes sure the display of @cell_view is updated. * * Since: 2.6 */ static void gtk_cell_view_set_value (GtkCellView *cell_view, GtkCellRenderer *renderer, gchar *property, GValue *value) { g_object_set_property (G_OBJECT (renderer), property, value); /* force resize and redraw */ gtk_widget_queue_resize (GTK_WIDGET (cell_view)); gtk_widget_queue_draw (GTK_WIDGET (cell_view)); } /** * gtk_cell_view_set_model: * @cell_view: a #GtkCellView * @model: (allow-none): a #GtkTreeModel * * Sets the model for @cell_view. If @cell_view already has a model * set, it will remove it before setting the new model. If @model is * %NULL, then it will unset the old model. * * Since: 2.6 */ void gtk_cell_view_set_model (GtkCellView *cell_view, GtkTreeModel *model) { g_return_if_fail (GTK_IS_CELL_VIEW (cell_view)); g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model)); if (cell_view->priv->model) { if (cell_view->priv->displayed_row) gtk_tree_row_reference_free (cell_view->priv->displayed_row); cell_view->priv->displayed_row = NULL; g_object_unref (cell_view->priv->model); cell_view->priv->model = NULL; } cell_view->priv->model = model; if (cell_view->priv->model) g_object_ref (cell_view->priv->model); } /** * gtk_cell_view_get_model: * @cell_view: a #GtkCellView * * Returns the model for @cell_view. If no model is used %NULL is * returned. * * Returns: (transfer none): a #GtkTreeModel used or %NULL * * Since: 2.16 **/ GtkTreeModel * gtk_cell_view_get_model (GtkCellView *cell_view) { g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), NULL); return cell_view->priv->model; } /** * gtk_cell_view_set_displayed_row: * @cell_view: a #GtkCellView * @path: (allow-none): a #GtkTreePath or %NULL to unset. * * Sets the row of the model that is currently displayed * by the #GtkCellView. If the path is unset, then the * contents of the cellview "stick" at their last value; * this is not normally a desired result, but may be * a needed intermediate state if say, the model for * the #GtkCellView becomes temporarily empty. * * Since: 2.6 **/ void gtk_cell_view_set_displayed_row (GtkCellView *cell_view, GtkTreePath *path) { g_return_if_fail (GTK_IS_CELL_VIEW (cell_view)); g_return_if_fail (GTK_IS_TREE_MODEL (cell_view->priv->model)); if (cell_view->priv->displayed_row) gtk_tree_row_reference_free (cell_view->priv->displayed_row); if (path) { cell_view->priv->displayed_row = gtk_tree_row_reference_new (cell_view->priv->model, path); } else cell_view->priv->displayed_row = NULL; /* force resize and redraw */ gtk_widget_queue_resize (GTK_WIDGET (cell_view)); gtk_widget_queue_draw (GTK_WIDGET (cell_view)); } /** * gtk_cell_view_get_displayed_row: * @cell_view: a #GtkCellView * * Returns a #GtkTreePath referring to the currently * displayed row. If no row is currently displayed, * %NULL is returned. * * Returns: the currently displayed row or %NULL * * Since: 2.6 */ GtkTreePath * gtk_cell_view_get_displayed_row (GtkCellView *cell_view) { g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), NULL); if (!cell_view->priv->displayed_row) return NULL; return gtk_tree_row_reference_get_path (cell_view->priv->displayed_row); } /** * gtk_cell_view_get_size_of_row: * @cell_view: a #GtkCellView * @path: a #GtkTreePath * @requisition: return location for the size * * Sets @requisition to the size needed by @cell_view to display * the model row pointed to by @path. * * Return value: %TRUE * * Since: 2.6 * * Deprecated: 3.0: Use gtk_cell_view_get_desired_width_of_row() and * gtk_cell_view_get_desired_height_for_width_of_row() instead. */ gboolean gtk_cell_view_get_size_of_row (GtkCellView *cell_view, GtkTreePath *path, GtkRequisition *requisition) { GtkRequisition req; g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), FALSE); g_return_val_if_fail (path != NULL, FALSE); /* Return the minimum height for the minimum width */ gtk_cell_view_get_desired_width_of_row (cell_view, path, &req.width, NULL); gtk_cell_view_get_desired_height_for_width_of_row (cell_view, path, req.width, &req.height, NULL); if (requisition) *requisition = req; return TRUE; } /** * gtk_cell_view_get_desired_width_of_row: * @cell_view: a #GtkCellView * @path: a #GtkTreePath * @minimum_size: location to store the minimum size * @natural_size: location to store the natural size * * Sets @minimum_size and @natural_size to the width desired by @cell_view * to display the model row pointed to by @path. * * Since: 3.0 */ void gtk_cell_view_get_desired_width_of_row (GtkCellView *cell_view, GtkTreePath *path, gint *minimum_size, gint *natural_size) { GtkTreeRowReference *tmp; g_return_if_fail (GTK_IS_CELL_VIEW (cell_view)); g_return_if_fail (path != NULL); g_return_if_fail (minimum_size != NULL || natural_size != NULL); tmp = cell_view->priv->displayed_row; cell_view->priv->displayed_row = gtk_tree_row_reference_new (cell_view->priv->model, path); gtk_cell_view_get_width (GTK_SIZE_REQUEST (cell_view), minimum_size, natural_size); gtk_tree_row_reference_free (cell_view->priv->displayed_row); cell_view->priv->displayed_row = tmp; /* Restore active size (this will restore the cellrenderer info->width/requested_width's) */ gtk_cell_view_get_width (GTK_SIZE_REQUEST (cell_view), NULL, NULL); } /** * gtk_cell_view_get_desired_height_for_width_of_row: * @cell_view: a #GtkCellView * @path: a #GtkTreePath * @avail_size: available width * @minimum_size: location to store the minimum height * @natural_size: location to store the natural height * * Sets @minimum_size and @natural_size to the height desired by @cell_view * if it were allocated a width of @avail_size to display the model row * pointed to by @path. * * Since: 3.0 */ void gtk_cell_view_get_desired_height_for_width_of_row (GtkCellView *cell_view, GtkTreePath *path, gint avail_size, gint *minimum_size, gint *natural_size) { GtkTreeRowReference *tmp; g_return_if_fail (GTK_IS_CELL_VIEW (cell_view)); g_return_if_fail (path != NULL); g_return_if_fail (minimum_size != NULL || natural_size != NULL); tmp = cell_view->priv->displayed_row; cell_view->priv->displayed_row = gtk_tree_row_reference_new (cell_view->priv->model, path); /* Then get the collective height_for_width based on the cached values */ gtk_cell_view_get_height_for_width (GTK_SIZE_REQUEST (cell_view), avail_size, minimum_size, natural_size); gtk_tree_row_reference_free (cell_view->priv->displayed_row); cell_view->priv->displayed_row = tmp; /* Restore active size (this will restore the cellrenderer info->width/requested_width's) */ gtk_cell_view_get_width (GTK_SIZE_REQUEST (cell_view), NULL, NULL); } /** * gtk_cell_view_set_background_color: * @cell_view: a #GtkCellView * @color: the new background color * * Sets the background color of @view. * * Since: 2.6 */ void gtk_cell_view_set_background_color (GtkCellView *cell_view, const GdkColor *color) { g_return_if_fail (GTK_IS_CELL_VIEW (cell_view)); if (color) { if (!cell_view->priv->background_set) { cell_view->priv->background_set = TRUE; g_object_notify (G_OBJECT (cell_view), "background-set"); } cell_view->priv->background = *color; } else { if (cell_view->priv->background_set) { cell_view->priv->background_set = FALSE; g_object_notify (G_OBJECT (cell_view), "background-set"); } } gtk_widget_queue_draw (GTK_WIDGET (cell_view)); } static GList * gtk_cell_view_cell_layout_get_cells (GtkCellLayout *layout) { GtkCellView *cell_view = GTK_CELL_VIEW (layout); GList *retval = NULL, *list; g_return_val_if_fail (cell_view != NULL, NULL); gtk_cell_view_set_cell_data (cell_view); for (list = cell_view->priv->cell_list; list; list = list->next) { GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data; retval = g_list_prepend (retval, info->cell); } return g_list_reverse (retval); } static gboolean gtk_cell_view_buildable_custom_tag_start (GtkBuildable *buildable, GtkBuilder *builder, GObject *child, const gchar *tagname, GMarkupParser *parser, gpointer *data) { if (parent_buildable_iface->custom_tag_start && parent_buildable_iface->custom_tag_start (buildable, builder, child, tagname, parser, data)) return TRUE; return _gtk_cell_layout_buildable_custom_tag_start (buildable, builder, child, tagname, parser, data); } static void gtk_cell_view_buildable_custom_tag_end (GtkBuildable *buildable, GtkBuilder *builder, GObject *child, const gchar *tagname, gpointer *data) { if (strcmp (tagname, "attributes") == 0) _gtk_cell_layout_buildable_custom_tag_end (buildable, builder, child, tagname, data); else if (parent_buildable_iface->custom_tag_end) parent_buildable_iface->custom_tag_end (buildable, builder, child, tagname, data); } static void gtk_cell_view_size_request_init (GtkSizeRequestIface *iface) { iface->get_width = gtk_cell_view_get_width; iface->get_height = gtk_cell_view_get_height; iface->get_width_for_height = gtk_cell_view_get_width_for_height; iface->get_height_for_width = gtk_cell_view_get_height_for_width; } static void gtk_cell_view_get_width (GtkSizeRequest *widget, gint *minimum_size, gint *natural_size) { GList *list; gint cell_min, cell_nat; gboolean first_cell = TRUE; GtkCellView *cellview = GTK_CELL_VIEW (widget); gint minimum, natural; minimum = natural = 0; if (cellview->priv->displayed_row) gtk_cell_view_set_cell_data (cellview); for (list = cellview->priv->cell_list; list; list = list->next) { GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data; if (gtk_cell_renderer_get_visible (info->cell)) { if (!first_cell) { minimum += cellview->priv->spacing; natural += cellview->priv->spacing; } gtk_cell_size_request_get_width (GTK_CELL_SIZE_REQUEST (info->cell), GTK_WIDGET (cellview), &cell_min, &cell_nat); info->requested_width = cell_min; info->natural_width = cell_nat; minimum += info->requested_width; natural += info->natural_width; first_cell = FALSE; } } if (minimum_size) *minimum_size = minimum; if (natural_size) *natural_size = natural; } static void gtk_cell_view_get_height (GtkSizeRequest *widget, gint *minimum_size, gint *natural_size) { gint minimum_width; /* CellViews only need to respond to height-for-width mode (cellview is pretty much * an implementation detail of GtkComboBox) */ gtk_cell_view_get_width (widget, &minimum_width, NULL); gtk_cell_view_get_height_for_width (widget, minimum_width, minimum_size, natural_size); } static void gtk_cell_view_get_width_for_height (GtkSizeRequest *widget, gint for_size, gint *minimum_size, gint *natural_size) { /* CellViews only need to respond to height-for-width mode (cellview is pretty much * an implementation detail of GtkComboBox) */ gtk_cell_view_get_width (widget, minimum_size, natural_size); } static void gtk_cell_view_get_height_for_width (GtkSizeRequest *widget, gint for_size, gint *minimum_size, gint *natural_size) { GtkCellView *cellview = GTK_CELL_VIEW (widget); GList *list; GtkRequestedSize *sizes; GArray *array; gint minimum, natural, avail_size; gboolean first_cell = TRUE; gint n_expand_cells = 0; gint extra_per_cell, extra_extra, i; minimum = natural = 0; avail_size = for_size; array = g_array_new (0, TRUE, sizeof (GtkRequestedSize)); if (cellview->priv->displayed_row) gtk_cell_view_set_cell_data (cellview); /* First allocate the right width to all cells */ for (list = cellview->priv->cell_list; list; list = list->next) { GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data; if (gtk_cell_renderer_get_visible (info->cell)) { GtkRequestedSize requested; gtk_cell_size_request_get_width (GTK_CELL_SIZE_REQUEST (info->cell), GTK_WIDGET (cellview), &requested.minimum_size, &requested.natural_size); requested.data = info; g_array_append_val (array, requested); avail_size -= requested.minimum_size; if (!first_cell) avail_size -= cellview->priv->spacing; first_cell = FALSE; if (info->expand) n_expand_cells++; } } sizes = (GtkRequestedSize *)array->data; avail_size = gtk_distribute_natural_allocation (MAX (0, avail_size), array->len, sizes); /* Deal with any expand space... */ if (n_expand_cells > 0) { extra_per_cell = avail_size / n_expand_cells; extra_extra = avail_size % n_expand_cells; } else /* Everything just left-aligned if no cells expand */ extra_per_cell = extra_extra = 0; /* Now get the height for the real width of each cell */ for (i = 0, list = cellview->priv->cell_list; list; list = list->next) { GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data; gint cell_minimum, cell_natural; if (gtk_cell_renderer_get_visible (info->cell)) { gint cell_width = sizes[i].minimum_size; g_assert (sizes[i].data == info); if (info->expand) { cell_width += extra_per_cell; if (extra_extra) { cell_width++; extra_extra--; } } /* Get the height for the real width of this cell */ gtk_cell_size_request_get_height_for_width (GTK_CELL_SIZE_REQUEST (info->cell), GTK_WIDGET (widget), cell_width, &cell_minimum, &cell_natural); minimum = MAX (minimum, cell_minimum); natural = MAX (natural, cell_natural); /* increment sizes[] index for visible cells */ i++; } } g_array_free (array, TRUE); if (minimum_size) *minimum_size = minimum; if (natural_size) *natural_size = natural; }