diff options
Diffstat (limited to 'libempathy-gtk/empathy-cell-renderer-text.c')
| -rw-r--r-- | libempathy-gtk/empathy-cell-renderer-text.c | 368 |
1 files changed, 368 insertions, 0 deletions
diff --git a/libempathy-gtk/empathy-cell-renderer-text.c b/libempathy-gtk/empathy-cell-renderer-text.c new file mode 100644 index 000000000..d48de32b8 --- /dev/null +++ b/libempathy-gtk/empathy-cell-renderer-text.c @@ -0,0 +1,368 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ +/* + * Copyright (C) 2004-2007 Imendio AB + * + * 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. + * + * Authors: Mikael Hallendal <micke@imendio.com> + */ + +#include "config.h" + +#include <string.h> + +#include "empathy-cell-renderer-text.h" + +#define GET_PRIV(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), EMPATHY_TYPE_CELL_RENDERER_TEXT, EmpathyCellRendererTextPriv)) + +struct _EmpathyCellRendererTextPriv { + gchar *name; + gchar *status; + gboolean is_group; + + gboolean is_valid; + gboolean is_selected; + + gboolean show_status; +}; + +static void empathy_cell_renderer_text_class_init (EmpathyCellRendererTextClass *klass); +static void empathy_cell_renderer_text_init (EmpathyCellRendererText *cell); +static void cell_renderer_text_finalize (GObject *object); +static void cell_renderer_text_get_property (GObject *object, + guint param_id, + GValue *value, + GParamSpec *pspec); +static void cell_renderer_text_set_property (GObject *object, + guint param_id, + const GValue *value, + GParamSpec *pspec); +static void cell_renderer_text_get_size (GtkCellRenderer *cell, + GtkWidget *widget, + GdkRectangle *cell_area, + gint *x_offset, + gint *y_offset, + gint *width, + gint *height); +static void cell_renderer_text_render (GtkCellRenderer *cell, + GdkDrawable *window, + GtkWidget *widget, + GdkRectangle *background_area, + GdkRectangle *cell_area, + GdkRectangle *expose_area, + GtkCellRendererState flags); +static void cell_renderer_text_update_text (EmpathyCellRendererText *cell, + GtkWidget *widget, + gboolean selected); + +/* Properties */ +enum { + PROP_0, + PROP_NAME, + PROP_STATUS, + PROP_IS_GROUP, + PROP_SHOW_STATUS, +}; + +G_DEFINE_TYPE (EmpathyCellRendererText, empathy_cell_renderer_text, GTK_TYPE_CELL_RENDERER_TEXT); + +static void +empathy_cell_renderer_text_class_init (EmpathyCellRendererTextClass *klass) +{ + GObjectClass *object_class; + GtkCellRendererClass *cell_class; + + object_class = G_OBJECT_CLASS (klass); + cell_class = GTK_CELL_RENDERER_CLASS (klass); + + object_class->finalize = cell_renderer_text_finalize; + + object_class->get_property = cell_renderer_text_get_property; + object_class->set_property = cell_renderer_text_set_property; + + cell_class->get_size = cell_renderer_text_get_size; + cell_class->render = cell_renderer_text_render; + + g_object_class_install_property (object_class, + PROP_NAME, + g_param_spec_string ("name", + "Name", + "Contact name", + NULL, + G_PARAM_READWRITE)); + g_object_class_install_property (object_class, + PROP_STATUS, + g_param_spec_string ("status", + "Status", + "Contact status string", + NULL, + G_PARAM_READWRITE)); + g_object_class_install_property (object_class, + PROP_IS_GROUP, + g_param_spec_boolean ("is_group", + "Is group", + "Whether this cell is a group", + FALSE, + G_PARAM_READWRITE)); + g_object_class_install_property (object_class, + PROP_SHOW_STATUS, + g_param_spec_boolean ("show-status", + "Show status", + "Whether to show the status line", + TRUE, + G_PARAM_READWRITE)); + + g_type_class_add_private (object_class, sizeof (EmpathyCellRendererTextPriv)); +} + +static void +empathy_cell_renderer_text_init (EmpathyCellRendererText *cell) +{ + EmpathyCellRendererTextPriv *priv; + + priv = GET_PRIV (cell); + + g_object_set (cell, + "ellipsize", PANGO_ELLIPSIZE_END, + NULL); + + priv->name = g_strdup (""); + priv->status = g_strdup (""); + priv->show_status = TRUE; +} + +static void +cell_renderer_text_finalize (GObject *object) +{ + EmpathyCellRendererText *cell; + EmpathyCellRendererTextPriv *priv; + + cell = EMPATHY_CELL_RENDERER_TEXT (object); + priv = GET_PRIV (cell); + + g_free (priv->name); + g_free (priv->status); + + (G_OBJECT_CLASS (empathy_cell_renderer_text_parent_class)->finalize) (object); +} + +static void +cell_renderer_text_get_property (GObject *object, + guint param_id, + GValue *value, + GParamSpec *pspec) +{ + EmpathyCellRendererText *cell; + EmpathyCellRendererTextPriv *priv; + + cell = EMPATHY_CELL_RENDERER_TEXT (object); + priv = GET_PRIV (cell); + + switch (param_id) { + case PROP_NAME: + g_value_set_string (value, priv->name); + break; + case PROP_STATUS: + g_value_set_string (value, priv->status); + break; + case PROP_IS_GROUP: + g_value_set_boolean (value, priv->is_group); + break; + case PROP_SHOW_STATUS: + g_value_set_boolean (value, priv->show_status); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec); + break; + } +} + +static void +cell_renderer_text_set_property (GObject *object, + guint param_id, + const GValue *value, + GParamSpec *pspec) +{ + EmpathyCellRendererText *cell; + EmpathyCellRendererTextPriv *priv; + const gchar *str; + + cell = EMPATHY_CELL_RENDERER_TEXT (object); + priv = GET_PRIV (cell); + + switch (param_id) { + case PROP_NAME: + g_free (priv->name); + str = g_value_get_string (value); + priv->name = g_strdup (str ? str : ""); + g_strdelimit (priv->name, "\n\r\t", ' '); + priv->is_valid = FALSE; + break; + case PROP_STATUS: + g_free (priv->status); + str = g_value_get_string (value); + priv->status = g_strdup (str ? str : ""); + g_strdelimit (priv->status, "\n\r\t", ' '); + priv->is_valid = FALSE; + break; + case PROP_IS_GROUP: + priv->is_group = g_value_get_boolean (value); + priv->is_valid = FALSE; + break; + case PROP_SHOW_STATUS: + priv->show_status = g_value_get_boolean (value); + priv->is_valid = FALSE; + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec); + break; + } +} + +static void +cell_renderer_text_get_size (GtkCellRenderer *cell, + GtkWidget *widget, + GdkRectangle *cell_area, + gint *x_offset, + gint *y_offset, + gint *width, + gint *height) +{ + EmpathyCellRendererText *celltext; + EmpathyCellRendererTextPriv *priv; + + celltext = EMPATHY_CELL_RENDERER_TEXT (cell); + priv = GET_PRIV (cell); + + /* Only update if not already valid so we get the right size. */ + cell_renderer_text_update_text (celltext, widget, priv->is_selected); + + (GTK_CELL_RENDERER_CLASS (empathy_cell_renderer_text_parent_class)->get_size) (cell, widget, + cell_area, + x_offset, y_offset, + width, height); +} + +static void +cell_renderer_text_render (GtkCellRenderer *cell, + GdkWindow *window, + GtkWidget *widget, + GdkRectangle *background_area, + GdkRectangle *cell_area, + GdkRectangle *expose_area, + GtkCellRendererState flags) +{ + EmpathyCellRendererText *celltext; + + celltext = EMPATHY_CELL_RENDERER_TEXT (cell); + + cell_renderer_text_update_text (celltext, + widget, + (flags & GTK_CELL_RENDERER_SELECTED)); + + (GTK_CELL_RENDERER_CLASS (empathy_cell_renderer_text_parent_class)->render) ( + cell, window, + widget, + background_area, + cell_area, + expose_area, flags); +} + +static void +cell_renderer_text_update_text (EmpathyCellRendererText *cell, + GtkWidget *widget, + gboolean selected) +{ + EmpathyCellRendererTextPriv *priv; + PangoAttrList *attr_list; + PangoAttribute *attr_color, *attr_style, *attr_size; + GtkStyle *style; + gchar *str; + + priv = GET_PRIV (cell); + + if (priv->is_valid && priv->is_selected == selected) { + return; + } + + if (priv->is_group) { + g_object_set (cell, + "visible", TRUE, + "weight", PANGO_WEIGHT_BOLD, + "text", priv->name, + "attributes", NULL, + "xpad", 1, + "ypad", 1, + NULL); + + priv->is_selected = selected; + priv->is_valid = TRUE; + return; + } + + style = gtk_widget_get_style (widget); + + attr_list = pango_attr_list_new (); + + attr_style = pango_attr_style_new (PANGO_STYLE_ITALIC); + attr_style->start_index = strlen (priv->name) + 1; + attr_style->end_index = -1; + pango_attr_list_insert (attr_list, attr_style); + + if (!selected) { + GdkColor color; + + color = style->text_aa[GTK_STATE_NORMAL]; + + attr_color = pango_attr_foreground_new (color.red, color.green, color.blue); + attr_color->start_index = attr_style->start_index; + attr_color->end_index = -1; + pango_attr_list_insert (attr_list, attr_color); + } + + attr_size = pango_attr_size_new (pango_font_description_get_size (style->font_desc) / 1.2); + + attr_size->start_index = attr_style->start_index; + attr_size->end_index = -1; + pango_attr_list_insert (attr_list, attr_size); + + if (!priv->status || !priv->status[0] || !priv->show_status) { + str = g_strdup (priv->name); + } else { + str = g_strdup_printf ("%s\n%s", priv->name, priv->status); + } + + g_object_set (cell, + "visible", TRUE, + "weight", PANGO_WEIGHT_NORMAL, + "text", str, + "attributes", attr_list, + "xpad", 0, + "ypad", 1, + NULL); + + g_free (str); + pango_attr_list_unref (attr_list); + + priv->is_selected = selected; + priv->is_valid = TRUE; +} + +GtkCellRenderer * +empathy_cell_renderer_text_new (void) +{ + return g_object_new (EMPATHY_TYPE_CELL_RENDERER_TEXT, NULL); +} |