New upstream version 2.0.3preupstream/2.0.3pre

1 files changed, 395 insertions, 0 deletions

diff --git a/deps/uber-graph/uber-label.c b/deps/uber-graph/uber-label.c
new file mode 100644
index 00000000..abc865fc
--- /dev/null
+++ b/deps/uber-graph/uber-label.c
@@ -0,0 +1,395 @@
+/* uber-label.c
+ *
+ * Copyright (C) 2010 Christian Hergert <chris@dronelabs.com>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <glib/gi18n.h>
+
+#include "uber-label.h"
+
+/**
+ * SECTION:uber-label.h
+ * @title: UberLabel
+ * @short_description:
+ *
+ * Section overview.
+ */
+
+
+struct _UberLabelPrivate
+{
+	GtkWidget *hbox;
+	GtkWidget *block;
+	GtkWidget *label;
+	GdkRGBA   color;
+	gboolean   in_block;
+};
+
+G_DEFINE_TYPE_WITH_PRIVATE(UberLabel, uber_label, GTK_TYPE_WIDGET)
+
+enum
+{
+	COLOR_CHANGED,
+	LAST_SIGNAL
+};
+
+enum
+{
+	PROP_0,
+	PROP_COLOR,
+	PROP_TEXT,
+};
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
+/**
+ * uber_label_new:
+ *
+ * Creates a new instance of #UberLabel.
+ *
+ * Returns: the newly created instance of #UberLabel.
+ * Side effects: None.
+ */
+GtkWidget*
+uber_label_new (void)
+{
+	UberLabel *label;
+
+	label = g_object_new(UBER_TYPE_LABEL, NULL);
+	return GTK_WIDGET(label);
+}
+
+/**
+ * uber_label_set_text:
+ * @label: A #UberLabel.
+ * @text: The label text.
+ *
+ * Sets the text for the label.
+ *
+ * Returns: None.
+ * Side effects: None.
+ */
+void
+uber_label_set_text (UberLabel   *label, /* IN */
+                     const gchar *text)  /* IN */
+{
+	UberLabelPrivate *priv;
+
+	g_return_if_fail(UBER_IS_LABEL(label));
+
+	priv = label->priv;
+	gtk_label_set_text(GTK_LABEL(priv->label), text);
+}
+
+/**
+ * uber_label_set_color:
+ * @label: A #UberLabel.
+ * @color: A #GdkRGBA.
+ *
+ * Sets the color of the label.
+ *
+ * Returns: None.
+ * Side effects: None.
+ */
+void
+uber_label_set_color (UberLabel      *label, /* IN */
+                      const GdkRGBA *color) /* IN */
+{
+	UberLabelPrivate *priv;
+
+	g_return_if_fail(UBER_IS_LABEL(label));
+
+	priv = label->priv;
+	priv->color = *color;
+}
+
+static void
+uber_label_block_draw         (GtkWidget      *block, /* IN */
+                               cairo_t        *cr, /* IN */
+                               UberLabel      *label) /* IN */
+{
+	UberLabelPrivate *priv;
+	GtkAllocation alloc;
+
+	g_return_if_fail(UBER_IS_LABEL(label));
+
+	priv = label->priv;
+	gtk_widget_get_allocation(block, &alloc);
+	/*
+	 * Draw background.
+	 */
+	gdk_cairo_set_source_rgba(cr, &priv->color);
+	cairo_rectangle(cr, .5, .5, alloc.width - 1., alloc.height - 1.);
+	cairo_fill_preserve(cr);
+	/*
+	 * Add highlight if mouse is in the block.
+	 */
+	if (priv->in_block) {
+		cairo_set_source_rgba(cr, 1., 1., 1., .3);
+		cairo_fill_preserve(cr);
+	}
+	/*
+	 * Stroke the edge of the block.
+	 */
+	cairo_set_line_width(cr, 1.0);
+	cairo_set_source_rgba(cr, 0., 0., 0., .5);
+	cairo_stroke(cr);
+	/*
+	 * Stroke the highlight of the block.
+	 */
+	cairo_rectangle(cr, 1.5, 1.5, alloc.width - 3., alloc.height - 3.);
+	cairo_set_source_rgba(cr, 1., 1., 1., .5);
+	cairo_stroke(cr);
+}
+
+/**
+ * uber_label_block_enter_notify_event:
+ * @label: A #UberLabel.
+ *
+ * Tracks the mouse entering the block widget.
+ *
+ * Returns: %FALSE to allow further callbacks.
+ * Side effects: None.
+ */
+static gboolean
+uber_label_block_enter_notify_event (GtkWidget        *widget, /* IN */
+                                     GdkEventCrossing *event,  /* IN */
+                                     UberLabel        *label)  /* IN */
+{
+	UberLabelPrivate *priv;
+
+	priv = label->priv;
+	priv->in_block = TRUE;
+	gtk_widget_queue_draw(widget);
+	return FALSE;
+}
+
+/**
+ * uber_label_block_leave_notify_event:
+ * @label: A #UberLabel.
+ *
+ * Tracks the mouse leaving the block widget.
+ *
+ * Returns: %FALSE to allow further callbacks.
+ * Side effects: None.
+ */
+static gboolean
+uber_label_block_leave_notify_event (GtkWidget        *widget, /* IN */
+                                     GdkEventCrossing *event,  /* IN */
+                                     UberLabel        *label)  /* IN */
+{
+	UberLabelPrivate *priv;
+
+	priv = label->priv;
+	priv->in_block = FALSE;
+	gtk_widget_queue_draw(widget);
+	return FALSE;
+}
+
+/**
+ * uber_label_block_button_press_event:
+ * @widget: A #GtkWidget.
+ * @event: A #GdkEventButton.
+ * @label: An #UberLabel.
+ *
+ * Callback to handle a button press event within the colored block.
+ *
+ * Returns: %FALSE always to allow further signal emission.
+ * Side effects: None.
+ */
+static gboolean
+uber_label_block_button_press_event (GtkWidget      *widget, /* IN */
+                                     GdkEventButton *event,  /* IN */
+                                     UberLabel      *label)  /* IN */
+{
+	UberLabelPrivate *priv;
+	GtkWidget *dialog;
+
+	g_return_val_if_fail(UBER_IS_LABEL(label), FALSE);
+
+	priv = label->priv;
+	dialog = gtk_color_chooser_dialog_new("", GTK_WINDOW(gtk_widget_get_toplevel(widget)));
+    gtk_color_chooser_set_use_alpha(GTK_COLOR_CHOOSER(dialog), TRUE);
+	gtk_color_chooser_set_rgba(
+			GTK_COLOR_CHOOSER(dialog),
+			&priv->color);
+	if (gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_OK) {
+		gtk_color_chooser_get_rgba(
+				GTK_COLOR_CHOOSER(dialog),
+				&priv->color);
+		gtk_widget_queue_draw(widget);
+		g_signal_emit(label, signals[COLOR_CHANGED],
+		              0, &priv->color);
+	}
+	gtk_widget_destroy(dialog);
+	return FALSE;
+}
+
+/**
+ * uber_label_set_property:
+ * @object: (in): A #GObject.
+ * @prop_id: (in): The property identifier.
+ * @value: (in): The given property.
+ * @pspec: (in): A #ParamSpec.
+ *
+ * Set a given #GObject property.
+ */
+static void
+uber_label_set_property (GObject      *object,
+                         guint         prop_id,
+                         const GValue *value,
+                         GParamSpec   *pspec)
+{
+	UberLabel *label = UBER_LABEL(object);
+
+	switch (prop_id) {
+	case PROP_COLOR:
+		uber_label_set_color(label, g_value_get_boxed(value));
+		break;
+	case PROP_TEXT:
+		uber_label_set_text(label, g_value_get_string(value));
+		break;
+	default:
+		G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
+	}
+}
+
+/**
+ * uber_label_finalize:
+ * @object: A #UberLabel.
+ *
+ * Finalizer for a #UberLabel instance.  Frees any resources held by
+ * the instance.
+ *
+ * Returns: None.
+ * Side effects: None.
+ */
+static void
+uber_label_finalize (GObject *object) /* IN */
+{
+	G_OBJECT_CLASS(uber_label_parent_class)->finalize(object);
+}
+
+/**
+ * uber_label_class_init:
+ * @klass: A #UberLabelClass.
+ *
+ * Initializes the #UberLabelClass and prepares the vtable.
+ *
+ * Returns: None.
+ * Side effects: None.
+ */
+static void
+uber_label_class_init (UberLabelClass *klass) /* IN */
+{
+	GObjectClass *object_class;
+
+	object_class = G_OBJECT_CLASS(klass);
+	object_class->finalize = uber_label_finalize;
+	object_class->set_property = uber_label_set_property;
+
+	g_object_class_install_property(object_class,
+	                                PROP_COLOR,
+	                                g_param_spec_boxed("color",
+	                                                   "color",
+	                                                   "color",
+	                                                   GDK_TYPE_RGBA,
+	                                                   G_PARAM_WRITABLE));
+
+	g_object_class_install_property(object_class,
+	                                PROP_TEXT,
+	                                g_param_spec_string("text",
+	                                                    "text",
+	                                                    "text",
+	                                                    NULL,
+	                                                    G_PARAM_WRITABLE));
+
+	/**
+	 * UberLabel::color-changed:
+	 * @label: An #UberLabel.
+	 * @color: A #GdkRGBA.
+	 *
+	 * Signal emitted when the color is changed.
+	 */
+	signals[COLOR_CHANGED] = g_signal_new("color-changed",
+	                                      UBER_TYPE_LABEL,
+	                                      G_SIGNAL_RUN_FIRST,
+	                                      0,
+	                                      NULL,
+	                                      NULL,
+	                                      g_cclosure_marshal_VOID__POINTER,
+	                                      G_TYPE_NONE,
+	                                      1,
+	                                      G_TYPE_POINTER);
+}
+
+/**
+ * uber_label_init:
+ * @label: A #UberLabel.
+ *
+ * Initializes the newly created #UberLabel instance.
+ *
+ * Returns: None.
+ * Side effects: None.
+ */
+static void
+uber_label_init (UberLabel *label) /* IN */
+{
+	UberLabelPrivate *priv;
+
+	label->priv = uber_label_get_instance_private(label);
+
+	priv = label->priv;
+	priv->hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 6);
+	priv->block = gtk_drawing_area_new();
+	priv->label = gtk_label_new(NULL);
+	gdk_rgba_parse(&priv->color, "#cc0000");
+	gtk_widget_set_halign(GTK_WIDGET(priv->label), GTK_ALIGN_START);
+	gtk_widget_set_valign(GTK_WIDGET(priv->label), GTK_ALIGN_CENTER);
+	gtk_widget_set_size_request(priv->block, 32, 17);
+	gtk_container_add(GTK_CONTAINER(label), priv->hbox);
+	gtk_box_pack_start(GTK_BOX(priv->hbox), priv->block, FALSE, TRUE, 0);
+	gtk_box_pack_start(GTK_BOX(priv->hbox), priv->label, TRUE, TRUE, 0);
+	gtk_widget_add_events(priv->block,
+	                      GDK_ENTER_NOTIFY_MASK |
+	                      GDK_LEAVE_NOTIFY_MASK |
+	                      GDK_BUTTON_PRESS_MASK);
+	g_signal_connect(priv->block,
+	                 "draw",
+	                 G_CALLBACK(uber_label_block_draw),
+	                 label);
+	g_signal_connect(priv->block,
+	                 "enter-notify-event",
+	                 G_CALLBACK(uber_label_block_enter_notify_event),
+	                 label);
+	g_signal_connect(priv->block,
+	                 "leave-notify-event",
+	                 G_CALLBACK(uber_label_block_leave_notify_event),
+	                 label);
+	g_signal_connect(priv->block,
+	                 "button-press-event",
+	                 G_CALLBACK(uber_label_block_button_press_event),
+	                 label);
+	gtk_widget_set_tooltip_text(GTK_WIDGET(priv->block),
+	                            _("Click to select color"));
+	gtk_widget_show(priv->hbox);
+	gtk_widget_show(priv->block);
+	gtk_widget_show(priv->label);
+}