diff options
Diffstat (limited to 'gtk/gtkcellview.c')
| -rw-r--r-- | gtk/gtkcellview.c | 835 |
1 files changed, 835 insertions, 0 deletions
diff --git a/gtk/gtkcellview.c b/gtk/gtkcellview.c new file mode 100644 index 0000000000..448851f59b --- /dev/null +++ b/gtk/gtkcellview.c @@ -0,0 +1,835 @@ +/* gtkellview.c + * Copyright (C) 2002, 2003 Kristian Rietveld <kris@gtk.org> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + * + * This program 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 + * General Public License for more details. + * + * You should have received a copy of the GNU General Public + * License along with this program; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#include <gtk/gtkcellview.h> +#include <gtk/gtkintl.h> +#include <gtk/gtksignal.h> +#include <gtk/gtkcellrenderertext.h> +#include <gtk/gtkcellrendererpixbuf.h> +#include <gobject/gmarshal.h> + +typedef struct _GtkCellViewCellInfo GtkCellViewCellInfo; +struct _GtkCellViewCellInfo +{ + GtkCellRenderer *cell; + + gint requested_width; + gint real_width; + guint expand : 1; + guint pack : 1; + + GSList *attributes; +}; + +struct _GtkCellViewPrivate +{ + GtkTreeModel *model; + GtkTreeRowReference *displayed_row; + GList *cell_list; + gint spacing; + + GdkColor background; + gboolean background_set; +}; + + +static void gtk_cell_view_class_init (GtkCellViewClass *klass); +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_init (GtkCellView *cellview); +static void gtk_cell_view_finalize (GObject *object); +static void gtk_cell_view_style_set (GtkWidget *widget, + GtkStyle *previous_style); +static void gtk_cell_view_size_request (GtkWidget *widget, + GtkRequisition *requisition); +static void gtk_cell_view_size_allocate (GtkWidget *widget, + GtkAllocation *allocation); +static gboolean gtk_cell_view_expose (GtkWidget *widget, + GdkEventExpose *event); +static void gtk_cell_view_set_attributesv (GtkCellView *cellview, + GtkCellRenderer *renderer, + va_list args); +static void gtk_cell_view_set_valuesv (GtkCellView *cellview, + GtkCellRenderer *renderer, + va_list args); +static void gtk_cell_view_set_cell_data (GtkCellView *cellview); + + +enum +{ + PROP_0, + PROP_BACKGROUND, + PROP_BACKGROUND_GDK, + PROP_BACKGROUND_SET +}; + +static GtkObjectClass *parent_class = NULL; + + +GType +gtk_cell_view_get_type (void) +{ + static GType cell_view_type = 0; + + if (!cell_view_type) + { + static const GTypeInfo cell_view_info = + { + sizeof (GtkCellViewClass), + NULL, /* base_init */ + NULL, /* base_finalize */ + (GClassInitFunc) gtk_cell_view_class_init, + NULL, /* class_finalize */ + NULL, /* class_data */ + sizeof (GtkCellView), + 0, + (GInstanceInitFunc) gtk_cell_view_init + }; + + cell_view_type = g_type_register_static (GTK_TYPE_WIDGET, "GtkCellView", + &cell_view_info, 0); + } + + return cell_view_type; +} + +static void +gtk_cell_view_class_init (GtkCellViewClass *klass) +{ + GObjectClass *gobject_class = G_OBJECT_CLASS (klass); + GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass); + + parent_class = g_type_class_peek_parent (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->expose_event = gtk_cell_view_expose; + widget_class->size_allocate = gtk_cell_view_size_allocate; + widget_class->size_request = gtk_cell_view_size_request; + widget_class->style_set = gtk_cell_view_style_set; + + /* properties */ + g_object_class_install_property (gobject_class, + PROP_BACKGROUND, + g_param_spec_string ("background", + _("Background color name"), + _("Background color as a string"), + NULL, + G_PARAM_WRITABLE)); + g_object_class_install_property (gobject_class, + PROP_BACKGROUND_GDK, + g_param_spec_boxed ("background_gdk", + _("Background color"), + _("Background color as a GdkColor"), + GDK_TYPE_COLOR, + G_PARAM_READABLE | G_PARAM_WRITABLE)); + +#define ADD_SET_PROP(propname, propval, nick, blurb) g_object_class_install_property (gobject_class, propval, g_param_spec_boolean (propname, nick, blurb, FALSE, G_PARAM_READABLE | G_PARAM_WRITABLE)) + + ADD_SET_PROP ("background_set", PROP_BACKGROUND_SET, + _("Background set"), + _("Whether this tag affects the background color")); + + g_type_class_add_private (gobject_class, sizeof (GtkCellViewPrivate)); +} + +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; + 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; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec); + break; + } +} + +static void +gtk_cell_view_init (GtkCellView *cellview) +{ + GTK_WIDGET_SET_FLAGS (cellview, GTK_NO_WINDOW); + + cellview->priv = GTK_CELL_VIEW_GET_PRIVATE (cellview); +} + +static void +gtk_cell_view_style_set (GtkWidget *widget, + GtkStyle *previous_style) +{ + if (previous_style && GTK_WIDGET_REALIZED (widget)) + gdk_window_set_background (widget->window, + &widget->style->base[GTK_WIDGET_STATE (widget)]); +} + +static void +gtk_cell_view_finalize (GObject *object) +{ + GtkCellView *cellview = GTK_CELL_VIEW (object); + + if (cellview->priv->cell_list) + { + g_list_foreach (cellview->priv->cell_list, (GFunc)g_free, NULL); + g_list_free (cellview->priv->cell_list); + } + cellview->priv->cell_list = NULL; + + if (G_OBJECT_CLASS (parent_class)->finalize) + (* G_OBJECT_CLASS (parent_class)->finalize) (object); +} + +static void +gtk_cell_view_size_request (GtkWidget *widget, + GtkRequisition *requisition) +{ + GList *i; + gboolean first_cell = TRUE; + GtkCellView *cellview; + + cellview = GTK_CELL_VIEW (widget); + + requisition->width = 0; + requisition->height = 0; + + if (cellview->priv->displayed_row) + gtk_cell_view_set_cell_data (cellview); + + for (i = cellview->priv->cell_list; i; i = i->next) + { + gint width, height; + GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data; + + if (!info->cell->visible) + continue; + + if (!first_cell) + requisition->width += cellview->priv->spacing; + + gtk_cell_renderer_get_size (info->cell, widget, NULL, NULL, NULL, + &width, &height); + + info->requested_width = width; + requisition->width += width; + requisition->height = MAX (requisition->height, height); + + first_cell = FALSE; + } +} + +static void +gtk_cell_view_size_allocate (GtkWidget *widget, + GtkAllocation *allocation) +{ + GList *i; + gint expand_cell_count = 0; + gint full_requested_width = 0; + gint extra_space; + GtkCellView *cellview; + + widget->allocation = *allocation; + + cellview = GTK_CELL_VIEW (widget); + + /* checking how much extra space we have */ + for (i = cellview->priv->cell_list; i; i = i->next) + { + GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data; + + if (!info->cell->visible) + continue; + + if (info->expand) + expand_cell_count++; + + full_requested_width += info->requested_width; + } + + extra_space = widget->allocation.width - full_requested_width; + if (extra_space < 0) + extra_space = 0; + else if (extra_space > 0 && expand_cell_count > 0) + extra_space /= expand_cell_count; + + /* iterate list for PACK_START cells */ + for (i = cellview->priv->cell_list; i; i = i->next) + { + GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data; + + if (info->pack == GTK_PACK_END) + continue; + + if (!info->cell->visible) + continue; + + info->real_width = info->requested_width + (info->expand?extra_space:0); + } + + /* iterate list for PACK_END cells */ + for (i = cellview->priv->cell_list; i; i = i->next) + { + GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data; + + if (info->pack == GTK_PACK_START) + continue; + + if (!info->cell->visible) + continue; + + info->real_width = info->requested_width + (info->expand?extra_space:0); + } +} + +static gboolean +gtk_cell_view_expose (GtkWidget *widget, + GdkEventExpose *event) +{ + GList *i; + GtkCellView *cellview; + GdkRectangle area; + + cellview = GTK_CELL_VIEW (widget); + + if (! GTK_WIDGET_DRAWABLE (widget)) + return FALSE; + + /* "blank" background */ + if (cellview->priv->background_set) + { + GdkGC *gc; + + gc = gdk_gc_new (GTK_WIDGET (cellview)->window); + gdk_gc_set_rgb_fg_color (gc, &cellview->priv->background); + + gdk_draw_rectangle (GTK_WIDGET (cellview)->window, + gc, + TRUE, + + /*0, 0,*/ + widget->allocation.x, + widget->allocation.y, + + widget->allocation.width, + widget->allocation.height); + + g_object_unref (G_OBJECT (gc)); + } + + /* set cell data (if applicable) */ + if (cellview->priv->displayed_row) + gtk_cell_view_set_cell_data (cellview); + + /* render cells */ + area = widget->allocation; + + /* we draw on our very own window, initialize x and y to zero */ + area.x = widget->allocation.x; + area.y = widget->allocation.y; + + /* PACK_START */ + for (i = cellview->priv->cell_list; i; i = i->next) + { + GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data; + + if (info->pack == GTK_PACK_END) + continue; + + if (!info->cell->visible) + continue; + + area.width = info->real_width; + + gtk_cell_renderer_render (info->cell, + event->window, + widget, + /* FIXME! */ + &area, &area, &event->area, 0); + + area.x += info->real_width; + } + + /* PACK_END */ + for (i = cellview->priv->cell_list; i; i = i->next) + { + GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data; + + if (info->pack == GTK_PACK_START) + continue; + + if (!info->cell->visible) + continue; + + area.width = info->real_width; + + gtk_cell_renderer_render (info->cell, + widget->window, + widget, + /* FIXME ! */ + &area, &area, &event->area, 0); + area.x += info->real_width; + } + + return FALSE; +} + +GtkWidget * +gtk_cell_view_new (void) +{ + GtkCellView *cellview; + + cellview = GTK_CELL_VIEW (g_object_new (gtk_cell_view_get_type (), NULL)); + + return GTK_WIDGET (cellview); +} + +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_pack_start (cellview, renderer, TRUE); + + g_value_init (&value, G_TYPE_STRING); + g_value_set_string (&value, text); + gtk_cell_view_set_values (cellview, renderer, "text", &value, NULL); + g_value_unset (&value); + + return GTK_WIDGET (cellview); +} + +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_pack_start (cellview, renderer, TRUE); + + g_value_init (&value, G_TYPE_STRING); + g_value_set_string (&value, markup); + gtk_cell_view_set_values (cellview, renderer, "markup", &value, NULL); + g_value_unset (&value); + + return GTK_WIDGET (cellview); +} + +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_pack_start (cellview, renderer, TRUE); + + g_value_init (&value, GDK_TYPE_PIXBUF); + g_value_set_object (&value, pixbuf); + gtk_cell_view_set_values (cellview, renderer, "pixbuf", &value, NULL); + g_value_unset (&value); + + return GTK_WIDGET (cellview); +} + +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; +} + +void +gtk_cell_view_pack_start (GtkCellView *cellview, + GtkCellRenderer *renderer, + gboolean expand) +{ + GtkCellViewCellInfo *info; + + g_return_if_fail (GTK_IS_CELL_VIEW (cellview)); + g_return_if_fail (GTK_IS_CELL_RENDERER (renderer)); + g_return_if_fail (!gtk_cell_view_get_cell_info (cellview, renderer)); + + g_object_ref (G_OBJECT (renderer)); + gtk_object_sink (GTK_OBJECT (renderer)); + + info = g_new0 (GtkCellViewCellInfo, 1); + 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); +} + +void +gtk_cell_view_pack_end (GtkCellView *cellview, + GtkCellRenderer *renderer, + gboolean expand) +{ + GtkCellViewCellInfo *info; + + g_return_if_fail (GTK_IS_CELL_VIEW (cellview)); + g_return_if_fail (GTK_IS_CELL_RENDERER (renderer)); + g_return_if_fail (!gtk_cell_view_get_cell_info (cellview, renderer)); + + g_object_ref (G_OBJECT (renderer)); + gtk_object_sink (GTK_OBJECT (renderer)); + + info = g_new0 (GtkCellViewCellInfo, 1); + 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); +} + +void +gtk_cell_view_add_attribute (GtkCellView *cellview, + GtkCellRenderer *renderer, + const gchar *attribute, + gint column) +{ + GtkCellViewCellInfo *info; + + g_return_if_fail (GTK_IS_CELL_VIEW (cellview)); + 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)); +} + +void +gtk_cell_view_clear (GtkCellView *cellview) +{ + GList *i; + + for (i = cellview->priv->cell_list; i; i = i->next) + { + GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data; + + gtk_cell_view_clear_attributes (cellview, info->cell); + g_object_unref (G_OBJECT (info->cell)); + g_free (info); + } + + g_list_free (cellview->priv->cell_list); + cellview->priv->cell_list = NULL; +} + +void +gtk_cell_view_clear_attributes (GtkCellView *cellview, + GtkCellRenderer *renderer) +{ + GtkCellViewCellInfo *info; + GSList *list; + + g_return_if_fail (GTK_IS_CELL_VIEW (cellview)); + g_return_if_fail (GTK_IS_CELL_RENDERER (renderer)); + + info = gtk_cell_view_get_cell_info (cellview, renderer); + + list = info->attributes; + + while (list && list->next) + { + g_free (list->data); + list = list->next->next; + } + g_slist_free (list); + + info->attributes = NULL; +} + +static void +gtk_cell_view_set_attributesv (GtkCellView *cellview, + GtkCellRenderer *renderer, + va_list args) +{ + gchar *attribute; + gint column; + + attribute = va_arg (args, gchar *); + + gtk_cell_view_clear_attributes (cellview, renderer); + + while (attribute) + { + column = va_arg (args, gint); + gtk_cell_view_add_attribute (cellview, renderer, attribute, column); + attribute = va_arg (args, gchar *); + } +} + +void +gtk_cell_view_set_attributes (GtkCellView *cellview, + GtkCellRenderer *renderer, + ...) +{ + va_list args; + + g_return_if_fail (GTK_IS_CELL_VIEW (cellview)); + g_return_if_fail (GTK_IS_CELL_RENDERER (renderer)); + g_return_if_fail (gtk_cell_view_get_cell_info (cellview, renderer)); + + va_start (args, renderer); + gtk_cell_view_set_attributesv (cellview, renderer, args); + va_end (args); +} + +void +gtk_cell_view_set_value (GtkCellView *cellview, + GtkCellRenderer *renderer, + gchar *property, + GValue *value) +{ + g_return_if_fail (GTK_IS_CELL_VIEW (cellview)); + g_return_if_fail (GTK_IS_CELL_RENDERER (renderer)); + + g_object_set_property (G_OBJECT (renderer), property, value); + + /* force redraw */ + gtk_widget_queue_draw (GTK_WIDGET (cellview)); +} + +static void +gtk_cell_view_set_valuesv (GtkCellView *cellview, + GtkCellRenderer *renderer, + va_list args) +{ + gchar *attribute; + GValue *value; + + attribute = va_arg (args, gchar *); + + while (attribute) + { + value = va_arg (args, GValue *); + gtk_cell_view_set_value (cellview, renderer, attribute, value); + attribute = va_arg (args, gchar *); + } +} + +void +gtk_cell_view_set_values (GtkCellView *cellview, + GtkCellRenderer *renderer, + ...) +{ + va_list args; + + g_return_if_fail (GTK_IS_CELL_VIEW (cellview)); + g_return_if_fail (GTK_IS_CELL_RENDERER (renderer)); + g_return_if_fail (gtk_cell_view_get_cell_info (cellview, renderer)); + + va_start (args, renderer); + gtk_cell_view_set_valuesv (cellview, renderer, args); + va_end (args); +} + +void +gtk_cell_view_set_model (GtkCellView *cellview, + GtkTreeModel *model) +{ + g_return_if_fail (GTK_IS_CELL_VIEW (cellview)); + g_return_if_fail (GTK_IS_TREE_MODEL (model)); + + if (cellview->priv->model) + { + if (cellview->priv->displayed_row) + gtk_tree_row_reference_free (cellview->priv->displayed_row); + cellview->priv->displayed_row = NULL; + + g_object_unref (G_OBJECT (cellview->priv->model)); + cellview->priv->model = NULL; + } + + cellview->priv->model = model; + + if (cellview->priv->model) + g_object_ref (G_OBJECT (cellview->priv->model)); +} + +static void +gtk_cell_view_set_cell_data (GtkCellView *cellview) +{ + GList *i; + GtkTreeIter iter; + GtkTreePath *path; + + g_return_if_fail (cellview->priv->displayed_row != NULL); + + path = gtk_tree_row_reference_get_path (cellview->priv->displayed_row); + gtk_tree_model_get_iter (cellview->priv->model, &iter, path); + gtk_tree_path_free (path); + + for (i = cellview->priv->cell_list; i; i = i->next) + { + GSList *j; + GtkCellViewCellInfo *info = i->data; + + 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 (cellview->priv->model, &iter, + column, &value); + g_object_set_property (G_OBJECT (info->cell), + property, &value); + g_value_unset (&value); + } + } +} + +void +gtk_cell_view_set_displayed_row (GtkCellView *cellview, + GtkTreePath *path) +{ + g_return_if_fail (GTK_IS_CELL_VIEW (cellview)); + g_return_if_fail (GTK_IS_TREE_MODEL (cellview->priv->model)); + g_return_if_fail (path != NULL); + + if (cellview->priv->displayed_row) + gtk_tree_row_reference_free (cellview->priv->displayed_row); + + cellview->priv->displayed_row = + gtk_tree_row_reference_new (cellview->priv->model, path); + + /* force redraw */ + gtk_widget_queue_draw (GTK_WIDGET (cellview)); +} + +GtkTreePath * +gtk_cell_view_get_displayed_row (GtkCellView *cellview) +{ + g_return_val_if_fail (GTK_IS_CELL_VIEW (cellview), NULL); + + if (!cellview->priv->displayed_row) + return NULL; + + return gtk_tree_row_reference_get_path (cellview->priv->displayed_row); +} + +void +gtk_cell_view_set_background_color (GtkCellView *view, + GdkColor *color) +{ + g_return_if_fail (GTK_IS_CELL_VIEW (view)); + + if (color) + { + if (!view->priv->background_set) + { + view->priv->background_set = TRUE; + g_object_notify (G_OBJECT (view), "background_set"); + } + + view->priv->background = *color; + } + else + { + if (view->priv->background_set) + { + view->priv->background_set = FALSE; + g_object_notify (G_OBJECT (view), "background_set"); + } + } +} |