/* 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, see . */ #include "config.h" #include "gtkcellview.h" #include "gtkbuildable.h" #include "gtkcelllayout.h" #include "gtkcellareabox.h" #include "gtkcellrendererpixbuf.h" #include "gtkcellrenderertext.h" #include "gtkintl.h" #include "gtkorientable.h" #include "gtkprivate.h" #include "gtkwidgetprivate.h" #include #include /** * GtkCellView: * * A widget displaying a single row of a GtkTreeModel * * A `GtkCellView` displays a single row of a `GtkTreeModel` using a `GtkCellArea` * and `GtkCellAreaContext`. A `GtkCellAreaContext` can be provided to the * `GtkCellView` at construction time in order to keep the cellview in context * of a group of cell views, this ensures that the renderers displayed will * be properly aligned with each other (like the aligned cells in the menus * of `GtkComboBox`). * * `GtkCellView` is `GtkOrientable` in order to decide in which orientation * the underlying `GtkCellAreaContext` should be allocated. Taking the `GtkComboBox` * menu as an example, cellviews should be oriented horizontally if the menus are * listed top-to-bottom and thus all share the same width but may have separate * individual heights (left-to-right menus should be allocated vertically since * they all share the same height but may have variable widths). * * # CSS nodes * * GtkCellView has a single CSS node with name cellview. */ static void gtk_cell_view_constructed (GObject *object); 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_dispose (GObject *object); static void gtk_cell_view_size_allocate (GtkWidget *widget, int width, int height, int baseline); static void gtk_cell_view_snapshot (GtkWidget *widget, GtkSnapshot *snapshot); static void gtk_cell_view_set_value (GtkCellView *cell_view, GtkCellRenderer *renderer, const char *property, GValue *value); static void gtk_cell_view_set_cell_data (GtkCellView *cell_view); /* celllayout */ static void gtk_cell_view_cell_layout_init (GtkCellLayoutIface *iface); static GtkCellArea *gtk_cell_view_cell_layout_get_area (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 char *tagname, GtkBuildableParser *parser, gpointer *data); static void gtk_cell_view_buildable_custom_tag_end (GtkBuildable *buildable, GtkBuilder *builder, GObject *child, const char *tagname, gpointer data); static GtkSizeRequestMode gtk_cell_view_get_request_mode (GtkWidget *widget); static void gtk_cell_view_measure (GtkWidget *widget, GtkOrientation orientation, int for_size, int *minimum, int *natural, int *minimum_baseline, int *natural_baseline); static void context_size_changed_cb (GtkCellAreaContext *context, GParamSpec *pspec, GtkWidget *view); static void row_changed_cb (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, GtkCellView *view); typedef struct _GtkCellViewClass GtkCellViewClass; typedef struct _GtkCellViewPrivate GtkCellViewPrivate; struct _GtkCellView { GtkWidget parent_instance; }; struct _GtkCellViewClass { GtkWidgetClass parent_class; }; struct _GtkCellViewPrivate { GtkTreeModel *model; GtkTreeRowReference *displayed_row; GtkCellArea *area; GtkCellAreaContext *context; gulong size_changed_id; gulong row_changed_id; GtkOrientation orientation; guint draw_sensitive : 1; guint fit_model : 1; }; static GtkBuildableIface *parent_buildable_iface; enum { PROP_0, PROP_ORIENTATION, PROP_MODEL, PROP_CELL_AREA, PROP_CELL_AREA_CONTEXT, PROP_DRAW_SENSITIVE, PROP_FIT_MODEL }; G_DEFINE_TYPE_WITH_CODE (GtkCellView, gtk_cell_view, GTK_TYPE_WIDGET, G_ADD_PRIVATE (GtkCellView) 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_ORIENTABLE, NULL)) 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->constructed = gtk_cell_view_constructed; 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; gobject_class->dispose = gtk_cell_view_dispose; widget_class->snapshot = gtk_cell_view_snapshot; widget_class->size_allocate = gtk_cell_view_size_allocate; widget_class->get_request_mode = gtk_cell_view_get_request_mode; widget_class->measure = gtk_cell_view_measure; /* properties */ g_object_class_override_property (gobject_class, PROP_ORIENTATION, "orientation"); /** * GtkCellView:model: * * The model for cell view * * since 2.10 */ g_object_class_install_property (gobject_class, PROP_MODEL, g_param_spec_object ("model", NULL, NULL, GTK_TYPE_TREE_MODEL, GTK_PARAM_READWRITE)); /** * GtkCellView:cell-area: * * The `GtkCellArea` rendering cells * * If no area is specified when creating the cell view with gtk_cell_view_new_with_context() * a horizontally oriented `GtkCellArea`Box will be used. * * since 3.0 */ g_object_class_install_property (gobject_class, PROP_CELL_AREA, g_param_spec_object ("cell-area", NULL, NULL, GTK_TYPE_CELL_AREA, GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY)); /** * GtkCellView:cell-area-context: * * The `GtkCellAreaContext` used to compute the geometry of the cell view. * * A group of cell views can be assigned the same context in order to * ensure the sizes and cell alignments match across all the views with * the same context. * * `GtkComboBox` menus uses this to assign the same context to all cell views * in the menu items for a single menu (each submenu creates its own * context since the size of each submenu does not depend on parent * or sibling menus). * * since 3.0 */ g_object_class_install_property (gobject_class, PROP_CELL_AREA_CONTEXT, g_param_spec_object ("cell-area-context", NULL, NULL, GTK_TYPE_CELL_AREA_CONTEXT, GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY)); /** * GtkCellView:draw-sensitive: * * Whether all cells should be draw as sensitive for this view regardless * of the actual cell properties (used to make menus with submenus appear * sensitive when the items in submenus might be insensitive). * * since 3.0 */ g_object_class_install_property (gobject_class, PROP_DRAW_SENSITIVE, g_param_spec_boolean ("draw-sensitive", NULL, NULL, FALSE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); /** * GtkCellView:fit-model: * * Whether the view should request enough space to always fit * the size of every row in the model (used by the combo box to * ensure the combo box size doesn't change when different items * are selected). * * since 3.0 */ g_object_class_install_property (gobject_class, PROP_FIT_MODEL, g_param_spec_boolean ("fit-model", NULL, NULL, FALSE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); gtk_widget_class_set_css_name (widget_class, I_("cellview")); } static void gtk_cell_view_buildable_add_child (GtkBuildable *buildable, GtkBuilder *builder, GObject *child, const char *type) { if (GTK_IS_CELL_RENDERER (child)) _gtk_cell_layout_buildable_add_child (buildable, builder, child, type); else parent_buildable_iface->add_child (buildable, builder, child, type); } static void gtk_cell_view_buildable_init (GtkBuildableIface *iface) { parent_buildable_iface = g_type_interface_peek_parent (iface); iface->add_child = gtk_cell_view_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->get_area = gtk_cell_view_cell_layout_get_area; } static void gtk_cell_view_constructed (GObject *object) { GtkCellView *view = GTK_CELL_VIEW (object); GtkCellViewPrivate *priv = gtk_cell_view_get_instance_private (view); G_OBJECT_CLASS (gtk_cell_view_parent_class)->constructed (object); if (!priv->area) { priv->area = gtk_cell_area_box_new (); g_object_ref_sink (priv->area); } if (!priv->context) priv->context = gtk_cell_area_create_context (priv->area); priv->size_changed_id = g_signal_connect (priv->context, "notify", G_CALLBACK (context_size_changed_cb), view); } static void gtk_cell_view_get_property (GObject *object, guint param_id, GValue *value, GParamSpec *pspec) { GtkCellView *view = GTK_CELL_VIEW (object); GtkCellViewPrivate *priv = gtk_cell_view_get_instance_private (view); switch (param_id) { case PROP_ORIENTATION: g_value_set_enum (value, priv->orientation); break; case PROP_MODEL: g_value_set_object (value, priv->model); break; case PROP_CELL_AREA: g_value_set_object (value, priv->area); break; case PROP_CELL_AREA_CONTEXT: g_value_set_object (value, priv->context); break; case PROP_DRAW_SENSITIVE: g_value_set_boolean (value, priv->draw_sensitive); break; case PROP_FIT_MODEL: g_value_set_boolean (value, priv->fit_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); GtkCellViewPrivate *priv = gtk_cell_view_get_instance_private (view); GtkCellArea *area; GtkCellAreaContext *context; switch (param_id) { case PROP_ORIENTATION: if (priv->orientation != g_value_get_enum (value)) { priv->orientation = g_value_get_enum (value); if (priv->context) gtk_cell_area_context_reset (priv->context); gtk_widget_update_orientation (GTK_WIDGET (object), priv->orientation); g_object_notify_by_pspec (object, pspec); } break; case PROP_MODEL: gtk_cell_view_set_model (view, g_value_get_object (value)); break; case PROP_CELL_AREA: /* Construct-only, can only be assigned once */ area = g_value_get_object (value); if (area) { if (priv->area != NULL) { g_warning ("cell-area has already been set, ignoring construct property"); g_object_ref_sink (area); g_object_unref (area); } else priv->area = g_object_ref_sink (area); } break; case PROP_CELL_AREA_CONTEXT: /* Construct-only, can only be assigned once */ context = g_value_get_object (value); if (context) { if (priv->context != NULL) { g_warning ("cell-area-context has already been set, ignoring construct property"); g_object_ref_sink (context); g_object_unref (context); } else priv->context = g_object_ref (context); } break; case PROP_DRAW_SENSITIVE: gtk_cell_view_set_draw_sensitive (view, g_value_get_boolean (value)); break; case PROP_FIT_MODEL: gtk_cell_view_set_fit_model (view, g_value_get_boolean (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec); break; } } static void gtk_cell_view_init (GtkCellView *cellview) { GtkCellViewPrivate *priv = gtk_cell_view_get_instance_private (cellview); priv->orientation = GTK_ORIENTATION_HORIZONTAL; } static void gtk_cell_view_finalize (GObject *object) { GtkCellView *cellview = GTK_CELL_VIEW (object); GtkCellViewPrivate *priv = gtk_cell_view_get_instance_private (cellview); if (priv->displayed_row) gtk_tree_row_reference_free (priv->displayed_row); G_OBJECT_CLASS (gtk_cell_view_parent_class)->finalize (object); } static void gtk_cell_view_dispose (GObject *object) { GtkCellView *cellview = GTK_CELL_VIEW (object); GtkCellViewPrivate *priv = gtk_cell_view_get_instance_private (cellview); gtk_cell_view_set_model (cellview, NULL); g_clear_object (&priv->area); if (priv->context) { g_signal_handler_disconnect (priv->context, priv->size_changed_id); g_object_unref (priv->context); priv->context = NULL; priv->size_changed_id = 0; } G_OBJECT_CLASS (gtk_cell_view_parent_class)->dispose (object); } static void gtk_cell_view_size_allocate (GtkWidget *widget, int width, int height, int baseline) { GtkCellView *cellview = GTK_CELL_VIEW (widget); GtkCellViewPrivate *priv = gtk_cell_view_get_instance_private (cellview); int alloc_width, alloc_height; gtk_cell_area_context_get_allocation (priv->context, &alloc_width, &alloc_height); /* The first cell view in context is responsible for allocating the context at * allocate time (or the cellview has its own context and is not grouped with * any other cell views) * * If the cellview is in "fit model" mode, we assume it's not in context and * needs to allocate every time. */ if (priv->fit_model) gtk_cell_area_context_allocate (priv->context, width, height); else if (alloc_width != width && priv->orientation == GTK_ORIENTATION_HORIZONTAL) gtk_cell_area_context_allocate (priv->context, width, -1); else if (alloc_height != height && priv->orientation == GTK_ORIENTATION_VERTICAL) gtk_cell_area_context_allocate (priv->context, -1, height); } static void gtk_cell_view_request_model (GtkCellView *cellview, GtkTreeIter *parent, GtkOrientation orientation, int for_size, int *minimum_size, int *natural_size) { GtkCellViewPrivate *priv = gtk_cell_view_get_instance_private (cellview); GtkTreeIter iter; gboolean valid; if (!priv->model) return; valid = gtk_tree_model_iter_children (priv->model, &iter, parent); while (valid) { int min, nat; gtk_cell_area_apply_attributes (priv->area, priv->model, &iter, FALSE, FALSE); if (orientation == GTK_ORIENTATION_HORIZONTAL) { if (for_size < 0) gtk_cell_area_get_preferred_width (priv->area, priv->context, GTK_WIDGET (cellview), &min, &nat); else gtk_cell_area_get_preferred_width_for_height (priv->area, priv->context, GTK_WIDGET (cellview), for_size, &min, &nat); } else { if (for_size < 0) gtk_cell_area_get_preferred_height (priv->area, priv->context, GTK_WIDGET (cellview), &min, &nat); else gtk_cell_area_get_preferred_height_for_width (priv->area, priv->context, GTK_WIDGET (cellview), for_size, &min, &nat); } *minimum_size = MAX (min, *minimum_size); *natural_size = MAX (nat, *natural_size); /* Recurse into children when they exist */ gtk_cell_view_request_model (cellview, &iter, orientation, for_size, minimum_size, natural_size); valid = gtk_tree_model_iter_next (priv->model, &iter); } } static GtkSizeRequestMode gtk_cell_view_get_request_mode (GtkWidget *widget) { GtkCellView *cellview = GTK_CELL_VIEW (widget); GtkCellViewPrivate *priv = gtk_cell_view_get_instance_private (cellview); return gtk_cell_area_get_request_mode (priv->area); } static void gtk_cell_view_measure (GtkWidget *widget, GtkOrientation orientation, int for_size, int *minimum, int *natural, int *minimum_baseline, int *natural_baseline) { GtkCellView *cellview = GTK_CELL_VIEW (widget); GtkCellViewPrivate *priv = gtk_cell_view_get_instance_private (cellview); g_signal_handler_block (priv->context, priv->size_changed_id); if (orientation == GTK_ORIENTATION_HORIZONTAL && for_size == -1) { if (priv->fit_model) { int min = 0, nat = 0; gtk_cell_view_request_model (cellview, NULL, GTK_ORIENTATION_HORIZONTAL, -1, &min, &nat); } else { if (priv->displayed_row) gtk_cell_view_set_cell_data (cellview); gtk_cell_area_get_preferred_width (priv->area, priv->context, widget, NULL, NULL); } gtk_cell_area_context_get_preferred_width (priv->context, minimum, natural); } else if (orientation == GTK_ORIENTATION_VERTICAL && for_size == -1) { if (priv->fit_model) { int min = 0, nat = 0; gtk_cell_view_request_model (cellview, NULL, GTK_ORIENTATION_VERTICAL, -1, &min, &nat); } else { if (priv->displayed_row) gtk_cell_view_set_cell_data (cellview); gtk_cell_area_get_preferred_height (priv->area, priv->context, widget, NULL, NULL); } gtk_cell_area_context_get_preferred_height (priv->context, minimum, natural); } else if (orientation == GTK_ORIENTATION_HORIZONTAL && for_size >= 0) { if (priv->fit_model) { int min = 0, nat = 0; gtk_cell_view_request_model (cellview, NULL, GTK_ORIENTATION_HORIZONTAL, for_size, &min, &nat); *minimum = min; *natural = nat; } else { if (priv->displayed_row) gtk_cell_view_set_cell_data (cellview); gtk_cell_area_get_preferred_width_for_height (priv->area, priv->context, widget, for_size, minimum, natural); } } else { if (priv->fit_model) { int min = 0, nat = 0; gtk_cell_view_request_model (cellview, NULL, GTK_ORIENTATION_VERTICAL, for_size, &min, &nat); *minimum = min; *natural = nat; } else { if (priv->displayed_row) gtk_cell_view_set_cell_data (cellview); gtk_cell_area_get_preferred_height_for_width (priv->area, priv->context, widget, for_size, minimum, natural); } } g_signal_handler_unblock (priv->context, priv->size_changed_id); } static void gtk_cell_view_snapshot (GtkWidget *widget, GtkSnapshot *snapshot) { GtkCellView *cellview = GTK_CELL_VIEW (widget); GtkCellViewPrivate *priv = gtk_cell_view_get_instance_private (cellview); GdkRectangle area; GtkCellRendererState state; /* render cells */ area.x = 0; area.y = 0; area.width = gtk_widget_get_width (widget); area.height = gtk_widget_get_height (widget); /* set cell data (if available) */ if (priv->displayed_row) gtk_cell_view_set_cell_data (cellview); else if (priv->model) return; if (gtk_widget_get_state_flags (widget) & GTK_STATE_FLAG_PRELIGHT) state = GTK_CELL_RENDERER_PRELIT; else state = 0; /* Render the cells */ gtk_cell_area_snapshot (priv->area, priv->context, widget, snapshot, &area, &area, state, FALSE); } static void gtk_cell_view_set_cell_data (GtkCellView *cell_view) { GtkCellViewPrivate *priv = gtk_cell_view_get_instance_private (cell_view); GtkTreeIter iter; GtkTreePath *path; g_return_if_fail (priv->displayed_row != NULL); path = gtk_tree_row_reference_get_path (priv->displayed_row); if (!path) return; gtk_tree_model_get_iter (priv->model, &iter, path); gtk_tree_path_free (path); gtk_cell_area_apply_attributes (priv->area, priv->model, &iter, FALSE, FALSE); if (priv->draw_sensitive) { GList *l, *cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (priv->area)); for (l = cells; l; l = l->next) { GObject *renderer = l->data; g_object_set (renderer, "sensitive", TRUE, NULL); } g_list_free (cells); } } /* GtkCellLayout implementation */ static GtkCellArea * gtk_cell_view_cell_layout_get_area (GtkCellLayout *layout) { GtkCellView *cellview = GTK_CELL_VIEW (layout); GtkCellViewPrivate *priv = gtk_cell_view_get_instance_private (cellview); if (G_UNLIKELY (!priv->area)) { priv->area = gtk_cell_area_box_new (); g_object_ref_sink (priv->area); } return priv->area; } /* GtkBuildable implementation */ static gboolean gtk_cell_view_buildable_custom_tag_start (GtkBuildable *buildable, GtkBuilder *builder, GObject *child, const char *tagname, GtkBuildableParser *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 char *tagname, gpointer data) { if (_gtk_cell_layout_buildable_custom_tag_end (buildable, builder, child, tagname, data)) return; else if (parent_buildable_iface->custom_tag_end) parent_buildable_iface->custom_tag_end (buildable, builder, child, tagname, data); } static void context_size_changed_cb (GtkCellAreaContext *context, GParamSpec *pspec, GtkWidget *view) { if (!strcmp (pspec->name, "minimum-width") || !strcmp (pspec->name, "natural-width") || !strcmp (pspec->name, "minimum-height") || !strcmp (pspec->name, "natural-height")) gtk_widget_queue_resize (view); } static void row_changed_cb (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, GtkCellView *view) { GtkCellViewPrivate *priv = gtk_cell_view_get_instance_private (view); GtkTreePath *row_path; if (priv->displayed_row) { row_path = gtk_tree_row_reference_get_path (priv->displayed_row); if (row_path) { /* Resize everything in our context if our row changed */ if (gtk_tree_path_compare (row_path, path) == 0) gtk_cell_area_context_reset (priv->context); gtk_tree_path_free (row_path); } } } /** * gtk_cell_view_new: * * Creates a new `GtkCellView` widget. * * Returns: A newly created `GtkCellView` widget. */ GtkWidget * gtk_cell_view_new (void) { GtkCellView *cellview; cellview = g_object_new (GTK_TYPE_CELL_VIEW, NULL); return GTK_WIDGET (cellview); } /** * gtk_cell_view_new_with_context: * @area: the `GtkCellArea` to layout cells * @context: the `GtkCellAreaContext` in which to calculate cell geometry * * Creates a new `GtkCellView` widget with a specific `GtkCellArea` * to layout cells and a specific `GtkCellAreaContext`. * * Specifying the same context for a handful of cells lets * the underlying area synchronize the geometry for those cells, * in this way alignments with cellviews for other rows are * possible. * * Returns: A newly created `GtkCellView` widget. */ GtkWidget * gtk_cell_view_new_with_context (GtkCellArea *area, GtkCellAreaContext *context) { g_return_val_if_fail (GTK_IS_CELL_AREA (area), NULL); g_return_val_if_fail (context == NULL || GTK_IS_CELL_AREA_CONTEXT (context), NULL); return (GtkWidget *)g_object_new (GTK_TYPE_CELL_VIEW, "cell-area", area, "cell-area-context", context, NULL); } /** * 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 it show @text. * * Returns: A newly created `GtkCellView` widget. */ GtkWidget * gtk_cell_view_new_with_text (const char *text) { GtkCellView *cellview; GtkCellRenderer *renderer; GValue value = G_VALUE_INIT; cellview = GTK_CELL_VIEW (gtk_cell_view_new ()); renderer = gtk_cell_renderer_text_new (); gtk_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](https://docs.gtk.org/Pango/pango_markup.html). * * Returns: A newly created `GtkCellView` widget. */ GtkWidget * gtk_cell_view_new_with_markup (const char *markup) { GtkCellView *cellview; GtkCellRenderer *renderer; GValue value = G_VALUE_INIT; cellview = GTK_CELL_VIEW (gtk_cell_view_new ()); renderer = gtk_cell_renderer_text_new (); gtk_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_texture: * @texture: the image to display in the cell view * * Creates a new `GtkCellView` widget, adds a `GtkCellRendererPixbuf` * to it, and makes it show @texture. * * Returns: A newly created `GtkCellView` widget. */ GtkWidget * gtk_cell_view_new_with_texture (GdkTexture *texture) { GtkCellView *cellview; GtkCellRenderer *renderer; GValue value = G_VALUE_INIT; cellview = GTK_CELL_VIEW (gtk_cell_view_new ()); renderer = gtk_cell_renderer_pixbuf_new (); gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview), renderer, TRUE); g_value_init (&value, GDK_TYPE_TEXTURE); g_value_set_object (&value, texture); gtk_cell_view_set_value (cellview, renderer, "texture", &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. */ static void gtk_cell_view_set_value (GtkCellView *cell_view, GtkCellRenderer *renderer, const char *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: (nullable): 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. */ void gtk_cell_view_set_model (GtkCellView *cell_view, GtkTreeModel *model) { GtkCellViewPrivate *priv = gtk_cell_view_get_instance_private (cell_view); g_return_if_fail (GTK_IS_CELL_VIEW (cell_view)); g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model)); if (priv->model) { g_signal_handler_disconnect (priv->model, priv->row_changed_id); priv->row_changed_id = 0; if (priv->displayed_row) gtk_tree_row_reference_free (priv->displayed_row); priv->displayed_row = NULL; g_object_unref (priv->model); } priv->model = model; if (priv->model) { g_object_ref (priv->model); priv->row_changed_id = g_signal_connect (priv->model, "row-changed", G_CALLBACK (row_changed_cb), cell_view); } } /** * gtk_cell_view_get_model: * @cell_view: a `GtkCellView` * * Returns the model for @cell_view. If no model is used %NULL is * returned. * * Returns: (nullable) (transfer none): a `GtkTreeModel` used */ GtkTreeModel * gtk_cell_view_get_model (GtkCellView *cell_view) { GtkCellViewPrivate *priv = gtk_cell_view_get_instance_private (cell_view); g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), NULL); return priv->model; } /** * gtk_cell_view_set_displayed_row: * @cell_view: a `GtkCellView` * @path: (nullable): 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. **/ void gtk_cell_view_set_displayed_row (GtkCellView *cell_view, GtkTreePath *path) { GtkCellViewPrivate *priv = gtk_cell_view_get_instance_private (cell_view); g_return_if_fail (GTK_IS_CELL_VIEW (cell_view)); g_return_if_fail (GTK_IS_TREE_MODEL (priv->model)); if (priv->displayed_row) gtk_tree_row_reference_free (priv->displayed_row); if (path) priv->displayed_row = gtk_tree_row_reference_new (priv->model, path); else 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: (nullable) (transfer full): the currently displayed row */ GtkTreePath * gtk_cell_view_get_displayed_row (GtkCellView *cell_view) { GtkCellViewPrivate *priv = gtk_cell_view_get_instance_private (cell_view); g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), NULL); if (!priv->displayed_row) return NULL; return gtk_tree_row_reference_get_path (priv->displayed_row); } /** * gtk_cell_view_get_draw_sensitive: * @cell_view: a `GtkCellView` * * Gets whether @cell_view is configured to draw all of its * cells in a sensitive state. * * Returns: whether @cell_view draws all of its * cells in a sensitive state */ gboolean gtk_cell_view_get_draw_sensitive (GtkCellView *cell_view) { GtkCellViewPrivate *priv = gtk_cell_view_get_instance_private (cell_view); g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), FALSE); return priv->draw_sensitive; } /** * gtk_cell_view_set_draw_sensitive: * @cell_view: a `GtkCellView` * @draw_sensitive: whether to draw all cells in a sensitive state. * * Sets whether @cell_view should draw all of its * cells in a sensitive state, this is used by `GtkComboBox` menus * to ensure that rows with insensitive cells that contain * children appear sensitive in the parent menu item. */ void gtk_cell_view_set_draw_sensitive (GtkCellView *cell_view, gboolean draw_sensitive) { GtkCellViewPrivate *priv = gtk_cell_view_get_instance_private (cell_view); g_return_if_fail (GTK_IS_CELL_VIEW (cell_view)); if (priv->draw_sensitive != draw_sensitive) { priv->draw_sensitive = draw_sensitive; g_object_notify (G_OBJECT (cell_view), "draw-sensitive"); } } /** * gtk_cell_view_get_fit_model: * @cell_view: a `GtkCellView` * * Gets whether @cell_view is configured to request space * to fit the entire `GtkTreeModel`. * * Returns: whether @cell_view requests space to fit * the entire `GtkTreeModel`. */ gboolean gtk_cell_view_get_fit_model (GtkCellView *cell_view) { GtkCellViewPrivate *priv = gtk_cell_view_get_instance_private (cell_view); g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), FALSE); return priv->fit_model; } /** * gtk_cell_view_set_fit_model: * @cell_view: a `GtkCellView` * @fit_model: whether @cell_view should request space for the whole model. * * Sets whether @cell_view should request space to fit the entire `GtkTreeModel`. * * This is used by `GtkComboBox` to ensure that the cell view displayed on * the combo box’s button always gets enough space and does not resize * when selection changes. */ void gtk_cell_view_set_fit_model (GtkCellView *cell_view, gboolean fit_model) { GtkCellViewPrivate *priv = gtk_cell_view_get_instance_private (cell_view); g_return_if_fail (GTK_IS_CELL_VIEW (cell_view)); if (priv->fit_model != fit_model) { priv->fit_model = fit_model; gtk_cell_area_context_reset (priv->context); g_object_notify (G_OBJECT (cell_view), "fit-model"); } }