Move the contact map widgets to addressbook/gui/widgets.

Move the supporting widgets for the contact maps feature alongside
EABContactDisplay.  Removing them from libeutil helps isolate our usage
of libchamplain so it's not imposed on the entire application, and even
3rd party software.  That libchamplain is an optional dependency only
further complicates the matter.

Ideally I'd like to somehow isolate this feature in an extension module,
but we currently lack sufficient hooks for such an extension.  So this
arrangement will have to suffice for now.

1 files changed, 624 insertions, 0 deletions

diff --git a/addressbook/gui/widgets/e-contact-marker.c b/addressbook/gui/widgets/e-contact-marker.c
new file mode 100644
index 0000000000..9ac9417c9f
--- /dev/null
+++ b/addressbook/gui/widgets/e-contact-marker.c
@@ -0,0 +1,624 @@
+/*
+ * e-contact-marker.c
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) version 3.
+ *
+ * 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with the program; if not, see <http://www.gnu.org/licenses/>
+ *
+ * Copyright (C) 2008 Pierre-Luc Beaudoin <pierre-luc@pierlux.com>
+ * Copyright (C) 2011 Jiri Techet <techet@gmail.com>
+ * Copyright (C) 2011 Dan Vratil <dvratil@redhat.com>
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#ifdef WITH_CONTACT_MAPS
+
+#include "e-contact-marker.h"
+
+#include <champlain/champlain.h>
+#include <gtk/gtk.h>
+#include <clutter/clutter.h>
+#include <glib.h>
+#include <glib/gi18n.h>
+#include <glib-object.h>
+#include <cairo.h>
+#include <math.h>
+#include <string.h>
+
+#define E_CONTACT_MARKER_GET_PRIVATE(obj) \
+        (G_TYPE_INSTANCE_GET_PRIVATE \
+        ((obj), E_TYPE_CONTACT_MARKER, EContactMarkerPrivate))
+
+G_DEFINE_TYPE (EContactMarker, e_contact_marker, CHAMPLAIN_TYPE_LABEL);
+
+struct _EContactMarkerPrivate
+{
+	gchar *contact_uid;
+
+	ClutterActor *image;
+	ClutterActor *text_actor;
+
+	ClutterActor *shadow;
+	ClutterActor *background;
+
+	guint total_width;
+	guint total_height;
+
+	ClutterGroup *content_group;
+
+	guint redraw_id;
+};
+
+enum {
+	DOUBLE_CLICKED,
+	LAST_SIGNAL
+};
+
+static gint signals[LAST_SIGNAL] = {0};
+
+#define DEFAULT_FONT_NAME "Serif 9"
+
+static ClutterColor DEFAULT_COLOR = { 0x33, 0x33, 0x33, 0xff };
+
+#define RADIUS 10
+#define PADDING (RADIUS / 2)
+
+static gboolean
+contact_marker_clicked_cb (ClutterActor *actor,
+                           ClutterEvent *event,
+                           gpointer user_data)
+{
+	gint click_count = clutter_event_get_click_count (event);
+
+	if (click_count == 2)
+		g_signal_emit (E_CONTACT_MARKER (actor), signals[DOUBLE_CLICKED], 0);
+
+	return TRUE;
+}
+
+static ClutterActor *
+texture_new_from_pixbuf (GdkPixbuf *pixbuf,
+                         GError **error)
+{
+	ClutterActor *texture = NULL;
+	const guchar *data;
+	gboolean has_alpha, success;
+	gint width, height, rowstride;
+	ClutterTextureFlags flags = 0;
+
+	data = gdk_pixbuf_get_pixels (pixbuf);
+	width = gdk_pixbuf_get_width (pixbuf);
+	height = gdk_pixbuf_get_height (pixbuf);
+	has_alpha = gdk_pixbuf_get_has_alpha (pixbuf);
+	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
+
+	texture = clutter_texture_new ();
+	success = clutter_texture_set_from_rgb_data (
+		CLUTTER_TEXTURE (texture),
+		data, has_alpha, width, height, rowstride,
+		(has_alpha ? 4: 3), flags, NULL);
+
+	if (!success) {
+		clutter_actor_destroy (CLUTTER_ACTOR (texture));
+		texture = NULL;
+	}
+
+	return texture;
+}
+
+static ClutterActor *
+contact_photo_to_texture (EContactPhoto *photo)
+{
+	GdkPixbuf *pixbuf;
+
+	if  (photo->type == E_CONTACT_PHOTO_TYPE_INLINED) {
+		GError *error = NULL;
+
+		GdkPixbufLoader *loader = gdk_pixbuf_loader_new ();
+		gdk_pixbuf_loader_write (
+			loader, photo->data.inlined.data,
+			photo->data.inlined.length, NULL);
+		gdk_pixbuf_loader_close (loader, NULL);
+		pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);
+		if (pixbuf)
+			g_object_ref (pixbuf);
+		g_object_unref (loader);
+
+		if (error) {
+			g_error_free (error);
+			return NULL;
+		}
+	} else if (photo->type == E_CONTACT_PHOTO_TYPE_URI) {
+		GError *error = NULL;
+
+		pixbuf = gdk_pixbuf_new_from_file (photo->data.uri, &error);
+
+		if (error) {
+			g_error_free (error);
+			return NULL;
+		}
+	} else
+		return NULL;
+
+	if (pixbuf) {
+		ClutterActor *texture;
+		GError *error = NULL;
+
+		texture = texture_new_from_pixbuf (pixbuf, &error);
+		if (error) {
+			g_error_free (error);
+			g_object_unref (pixbuf);
+			return NULL;
+		}
+
+		g_object_unref (pixbuf);
+		return texture;
+	}
+
+	return NULL;
+}
+
+static void
+draw_box (cairo_t *cr,
+          gint width,
+          gint height,
+          gint point)
+{
+      cairo_move_to (cr, RADIUS, 0);
+      cairo_line_to (cr, width - RADIUS, 0);
+      cairo_arc (cr, width - RADIUS, RADIUS, RADIUS - 1, 3 * M_PI / 2.0, 0);
+      cairo_line_to (cr, width, height - RADIUS);
+      cairo_arc (cr, width - RADIUS, height - RADIUS, RADIUS - 1, 0, M_PI / 2.0);
+      cairo_line_to (cr, point, height);
+      cairo_line_to (cr, 0, height + point);
+      cairo_arc (cr, RADIUS, RADIUS, RADIUS - 1, M_PI, 3 * M_PI / 2.0);
+      cairo_close_path (cr);
+}
+
+static void
+draw_shadow (EContactMarker *marker,
+             gint width,
+             gint height,
+             gint point)
+{
+	EContactMarkerPrivate *priv = marker->priv;
+	ClutterActor *shadow = NULL;
+	cairo_t *cr;
+	gdouble slope;
+	gdouble scaling;
+	gint x;
+	cairo_matrix_t matrix;
+
+	slope = -0.3;
+	scaling = 0.65;
+	x = -40 * slope;
+
+	shadow = clutter_cairo_texture_new (width + x, (height + point));
+	cr = clutter_cairo_texture_create (CLUTTER_CAIRO_TEXTURE (shadow));
+
+	cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
+	cairo_paint (cr);
+	cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
+
+	cairo_matrix_init (&matrix, 1, 0, slope, scaling, x, 0);
+	cairo_set_matrix (cr, &matrix);
+
+	draw_box (cr, width, height, point);
+
+	cairo_set_source_rgba (cr, 0, 0, 0, 0.15);
+	cairo_fill (cr);
+
+	cairo_destroy (cr);
+
+	clutter_actor_set_position (shadow, 0, height / 2.0);
+
+	clutter_container_add_actor (CLUTTER_CONTAINER (priv->content_group), shadow);
+
+	if (priv->shadow != NULL) {
+		clutter_container_remove_actor (
+			CLUTTER_CONTAINER (priv->content_group),
+			priv->shadow);
+	}
+
+	priv->shadow = shadow;
+}
+
+static void
+draw_background (EContactMarker *marker,
+                 gint width,
+                 gint height,
+                 gint point)
+{
+	EContactMarkerPrivate *priv = marker->priv;
+	ClutterActor *bg = NULL;
+	const ClutterColor *color;
+	ClutterColor darker_color;
+	cairo_t *cr;
+
+	bg = clutter_cairo_texture_new (width, height + point);
+	cr = clutter_cairo_texture_create (CLUTTER_CAIRO_TEXTURE (bg));
+
+	cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
+	cairo_paint (cr);
+	cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
+
+  	/* If selected, add the selection color to the marker's color */
+	if (champlain_marker_get_selected (CHAMPLAIN_MARKER (marker)))
+		color = champlain_marker_get_selection_color ();
+	else
+		color = &DEFAULT_COLOR;
+
+	draw_box (cr, width, height, point);
+
+	clutter_color_darken (color, &darker_color);
+
+	cairo_set_source_rgba (
+		cr,
+		color->red / 255.0,
+		color->green / 255.0,
+		color->blue / 255.0,
+		color->alpha / 255.0);
+	cairo_fill_preserve (cr);
+
+	cairo_set_line_width (cr, 1.0);
+	cairo_set_source_rgba (
+		cr,
+		darker_color.red / 255.0,
+		darker_color.green / 255.0,
+		darker_color.blue / 255.0,
+		darker_color.alpha / 255.0);
+	cairo_stroke (cr);
+	cairo_destroy (cr);
+
+	clutter_container_add_actor (CLUTTER_CONTAINER (priv->content_group), bg);
+
+	if (priv->background != NULL) {
+		clutter_container_remove_actor (
+			CLUTTER_CONTAINER (priv->content_group),
+			priv->background);
+	}
+
+	priv->background = bg;
+}
+
+static void
+draw_marker (EContactMarker *marker)
+{
+	EContactMarkerPrivate *priv = marker->priv;
+	ChamplainLabel *label = CHAMPLAIN_LABEL (marker);
+	guint height = 0, point = 0;
+	guint total_width = 0, total_height = 0;
+	ClutterText *text;
+
+	if (priv->image) {
+		clutter_actor_set_position (priv->image, 2 *PADDING, 2 *PADDING);
+		if (clutter_actor_get_parent (priv->image) == NULL)
+			clutter_container_add_actor (
+				CLUTTER_CONTAINER (priv->content_group),
+				priv->image);
+	}
+
+	if (priv->text_actor == NULL) {
+		priv->text_actor = clutter_text_new_with_text (
+			"Serif 8",
+			champlain_label_get_text (label));
+		champlain_label_set_font_name (label, "Serif 8");
+	}
+
+	text = CLUTTER_TEXT (priv->text_actor);
+	clutter_text_set_text (
+		text,
+		champlain_label_get_text (label));
+	clutter_text_set_font_name (
+		text,
+		champlain_label_get_font_name (label));
+	clutter_text_set_line_alignment (text, PANGO_ALIGN_CENTER);
+	clutter_text_set_line_wrap (text, TRUE);
+	clutter_text_set_line_wrap_mode (text, PANGO_WRAP_WORD);
+	clutter_text_set_ellipsize (
+		text,
+		champlain_label_get_ellipsize (label));
+	clutter_text_set_attributes (
+		text,
+		champlain_label_get_attributes (label));
+	clutter_text_set_use_markup (
+		text,
+		champlain_label_get_use_markup (label));
+
+	if (priv->image) {
+		clutter_actor_set_width (
+			priv->text_actor,
+			clutter_actor_get_width (priv->image));
+		total_height = clutter_actor_get_height (priv->image) + 2 *PADDING +
+			       clutter_actor_get_height (priv->text_actor) + 2 *PADDING;
+		total_width = clutter_actor_get_width (priv->image) + 4 *PADDING;
+		clutter_actor_set_position (
+			priv->text_actor, PADDING,
+			clutter_actor_get_height (priv->image) + 2 *PADDING + 3);
+	} else {
+		total_height = clutter_actor_get_height (priv->text_actor) + 2 *PADDING;
+		total_width = clutter_actor_get_width (priv->text_actor) + 4 *PADDING;
+		clutter_actor_set_position (priv->text_actor, 2 * PADDING, PADDING);
+	}
+
+	height += 2 * PADDING;
+	if (height > total_height)
+		total_height = height;
+
+	clutter_text_set_color (
+		CLUTTER_TEXT (priv->text_actor),
+		(champlain_marker_get_selected (CHAMPLAIN_MARKER (marker)) ?
+			champlain_marker_get_selection_text_color () :
+			champlain_label_get_text_color (CHAMPLAIN_LABEL (marker))));
+	if (clutter_actor_get_parent (priv->text_actor) == NULL)
+		clutter_container_add_actor (
+			CLUTTER_CONTAINER (priv->content_group),
+			priv->text_actor);
+
+	if (priv->text_actor == NULL && priv->image == NULL) {
+		total_width = 6 * PADDING;
+		total_height = 6 * PADDING;
+	}
+
+	point = (total_height + 2 * PADDING) / 4.0;
+	priv->total_width = total_width;
+	priv->total_height = total_height;
+
+	draw_shadow (marker, total_width, total_height, point);
+	draw_background (marker, total_width, total_height, point);
+
+	if (priv->text_actor != NULL && priv->background != NULL)
+		clutter_actor_raise (priv->text_actor, priv->background);
+	if (priv->image != NULL && priv->background != NULL)
+		clutter_actor_raise (priv->image, priv->background);
+
+	clutter_actor_set_anchor_point (CLUTTER_ACTOR (marker), 0, total_height + point);
+}
+
+static gboolean
+redraw_on_idle (gpointer gobject)
+{
+	EContactMarker *marker = E_CONTACT_MARKER (gobject);
+
+	draw_marker (marker);
+	marker->priv->redraw_id = 0;
+	return FALSE;
+}
+
+static void
+queue_redraw (EContactMarker *marker)
+{
+	EContactMarkerPrivate *priv = marker->priv;
+
+	if (!priv->redraw_id) {
+		priv->redraw_id = g_idle_add_full (
+			G_PRIORITY_DEFAULT,
+			(GSourceFunc) redraw_on_idle,
+			g_object_ref (marker),
+			(GDestroyNotify) g_object_unref);
+	}
+}
+
+static void
+allocate (ClutterActor *self,
+          const ClutterActorBox *box,
+          ClutterAllocationFlags flags)
+{
+	ClutterActorBox child_box;
+	EContactMarkerPrivate *priv = E_CONTACT_MARKER (self)->priv;
+
+	CLUTTER_ACTOR_CLASS (e_contact_marker_parent_class)->allocate (self, box, flags);
+
+	child_box.x1 = 0;
+	child_box.x2 = box->x2 - box->x1;
+	child_box.y1 = 0;
+	child_box.y2 = box->y2 - box->y1;
+	clutter_actor_allocate (CLUTTER_ACTOR (priv->content_group), &child_box, flags);
+}
+
+static void
+paint (ClutterActor *self)
+{
+	EContactMarkerPrivate *priv = E_CONTACT_MARKER (self)->priv;
+
+	clutter_actor_paint (CLUTTER_ACTOR (priv->content_group));
+}
+
+static void
+map (ClutterActor *self)
+{
+	EContactMarkerPrivate *priv = E_CONTACT_MARKER (self)->priv;
+
+	CLUTTER_ACTOR_CLASS (e_contact_marker_parent_class)->map (self);
+
+	clutter_actor_map (CLUTTER_ACTOR (priv->content_group));
+}
+
+static void
+unmap (ClutterActor *self)
+{
+	EContactMarkerPrivate *priv = E_CONTACT_MARKER (self)->priv;
+
+	CLUTTER_ACTOR_CLASS (e_contact_marker_parent_class)->unmap (self);
+
+	clutter_actor_unmap (CLUTTER_ACTOR (priv->content_group));
+}
+
+static void
+pick (ClutterActor *self,
+      const ClutterColor *color)
+{
+	EContactMarkerPrivate *priv = E_CONTACT_MARKER (self)->priv;
+	gfloat width, height;
+
+	if (!clutter_actor_should_pick_paint (self))
+		return;
+
+	width = priv->total_width;
+	height = priv->total_height;
+
+	cogl_path_new ();
+
+	cogl_set_source_color4ub (
+		color->red,
+		color->green,
+		color->blue,
+		color->alpha);
+
+	cogl_path_move_to (RADIUS, 0);
+	cogl_path_line_to (width - RADIUS, 0);
+	cogl_path_arc (width - RADIUS, RADIUS, RADIUS, RADIUS, -90, 0);
+	cogl_path_line_to (width, height - RADIUS);
+	cogl_path_arc (width - RADIUS, height - RADIUS, RADIUS, RADIUS, 0, 90);
+	cogl_path_line_to (RADIUS, height);
+	cogl_path_arc (RADIUS, height - RADIUS, RADIUS, RADIUS, 90, 180);
+	cogl_path_line_to (0, RADIUS);
+	cogl_path_arc (RADIUS, RADIUS, RADIUS, RADIUS, 180, 270);
+	cogl_path_close ();
+	cogl_path_fill ();
+}
+
+static void
+notify_selected (GObject *gobject,
+                 G_GNUC_UNUSED GParamSpec *pspec,
+                 G_GNUC_UNUSED gpointer user_data)
+{
+	queue_redraw (E_CONTACT_MARKER (gobject));
+}
+
+static void
+e_contact_marker_finalize (GObject *object)
+{
+	EContactMarkerPrivate *priv = E_CONTACT_MARKER (object)->priv;
+
+	if (priv->contact_uid) {
+		g_free (priv->contact_uid);
+		priv->contact_uid = NULL;
+	}
+
+	if (priv->redraw_id) {
+		g_source_remove (priv->redraw_id);
+		priv->redraw_id = 0;
+	}
+
+	G_OBJECT_CLASS (e_contact_marker_parent_class)->finalize (object);
+}
+
+static void
+e_contact_marker_dispose (GObject *object)
+{
+	EContactMarkerPrivate *priv = E_CONTACT_MARKER (object)->priv;
+
+	priv->background = NULL;
+	priv->shadow = NULL;
+	priv->text_actor = NULL;
+
+	if (priv->content_group) {
+		clutter_actor_unparent (CLUTTER_ACTOR (priv->content_group));
+		priv->content_group = NULL;
+	}
+
+	G_OBJECT_CLASS (e_contact_marker_parent_class)->dispose (object);
+}
+
+static void
+e_contact_marker_class_init (EContactMarkerClass *class)
+{
+	ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (class);
+	GObjectClass *object_class = G_OBJECT_CLASS (class);
+
+	g_type_class_add_private (class, sizeof (EContactMarkerPrivate));
+
+	object_class->dispose = e_contact_marker_dispose;
+	object_class->finalize = e_contact_marker_finalize;
+
+	actor_class->paint = paint;
+	actor_class->allocate = allocate;
+	actor_class->map = map;
+	actor_class->unmap = unmap;
+	actor_class->pick = pick;
+
+	signals[DOUBLE_CLICKED] = g_signal_new (
+		"double-clicked",
+		G_TYPE_FROM_CLASS (class),
+		G_SIGNAL_RUN_FIRST,
+		G_STRUCT_OFFSET (EContactMarkerClass, double_clicked),
+		NULL, NULL,
+		g_cclosure_marshal_VOID__VOID,
+		G_TYPE_NONE, 0);
+}
+
+static void
+e_contact_marker_init (EContactMarker *marker)
+{
+	EContactMarkerPrivate *priv;
+
+	priv = E_CONTACT_MARKER_GET_PRIVATE (marker);
+
+	marker->priv = priv;
+	priv->contact_uid = NULL;
+	priv->image = NULL;
+	priv->background = NULL;
+	priv->shadow = NULL;
+	priv->text_actor = NULL;
+	priv->content_group = CLUTTER_GROUP (clutter_group_new ());
+	priv->redraw_id = 0;
+
+	clutter_actor_set_parent (
+		CLUTTER_ACTOR (priv->content_group), CLUTTER_ACTOR (marker));
+	clutter_actor_queue_relayout (CLUTTER_ACTOR (marker));
+
+	priv->total_width = 0;
+	priv->total_height = 0;
+
+	g_signal_connect (
+		marker, "notify::selected",
+		G_CALLBACK (notify_selected), NULL);
+	g_signal_connect (
+		marker, "button-release-event",
+		G_CALLBACK (contact_marker_clicked_cb), NULL);
+}
+
+ClutterActor *
+e_contact_marker_new (const gchar *name,
+                      const gchar *contact_uid,
+                      EContactPhoto *photo)
+{
+	ClutterActor *marker = CLUTTER_ACTOR (g_object_new (E_TYPE_CONTACT_MARKER, NULL));
+	EContactMarkerPrivate *priv = E_CONTACT_MARKER (marker)->priv;
+
+	g_return_val_if_fail (name && *name, NULL);
+	g_return_val_if_fail (contact_uid && *contact_uid, NULL);
+
+	champlain_label_set_text (CHAMPLAIN_LABEL (marker), name);
+	priv->contact_uid = g_strdup (contact_uid);
+	if (photo)
+		priv->image = contact_photo_to_texture (photo);
+
+	queue_redraw (E_CONTACT_MARKER (marker));
+
+	return marker;
+}
+
+const gchar *
+e_contact_marker_get_contact_uid (EContactMarker *marker)
+{
+	g_return_val_if_fail (marker && E_IS_CONTACT_MARKER (marker), NULL);
+
+	return marker->priv->contact_uid;
+}
+
+#endif /* WITH_CONTACT_MAPS */