From 78ab2d265d8fbd2bb4bbfb1533645154e12db2c2 Mon Sep 17 00:00:00 2001
From: Robin Haberkorn <robin.haberkorn@googlemail.com>
Date: Thu, 14 Jun 2012 14:30:27 +0200
Subject: new navigator signal (for Jens to use): section-selected should be
 emitted when an entry is single-clicked

 * connected with transcript widgets: the selected section becomes the transcripts backdrop area
 * updated documentation for callbacks in class structure
---
 src/default.ui |  5 +++++
 src/main.c     | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 56 insertions(+)

(limited to 'src')

diff --git a/src/default.ui b/src/default.ui
index e8496d6..923a0c5 100644
--- a/src/default.ui
+++ b/src/default.ui
@@ -319,11 +319,13 @@ audio-volume-medium</property>
                 <child>
                   <object class="GtkExperimentTranscript" id="transcript_wizard_widget">
                     <property name="visible">True</property>
+                    <property name="can_focus">True</property>
                   </object>
                 </child>
                 <child>
                   <object class="GtkExperimentTranscript" id="transcript_proband_widget">
                     <property name="visible">True</property>
+                    <property name="can_focus">True</property>
                   </object>
                   <packing>
                     <property name="left_attach">1</property>
@@ -485,6 +487,9 @@ audio-volume-medium</property>
                     <property name="headers_clickable">False</property>
                     <property name="search_column">0</property>
                     <signal name="time_selected" handler="navigator_widget_time_selected_cb" object="player_widget"/>
+                    <signal name="section_activated" handler="navigator_widget_section_activated_cb"/>
+                    <signal name="focus_in_event" handler="navigator_widget_generic_focus_event_cb"/>
+                    <signal name="focus_out_event" handler="navigator_widget_generic_focus_event_cb"/>
                   </object>
                 </child>
               </object>
diff --git a/src/main.c b/src/main.c
index ee81e44..16e3f71 100644
--- a/src/main.c
+++ b/src/main.c
@@ -207,6 +207,57 @@ navigator_widget_time_selected_cb(GtkWidget *widget, gint64 selected_time,
 	gtk_vlc_player_seek(GTK_VLC_PLAYER(widget), selected_time);
 }
 
+static struct {
+	gint64 start;
+	gint64 end;
+} last_activated_section = {-1, -1};
+
+/** @private */
+void
+navigator_widget_section_activated_cb(GtkWidget *widget __attribute__((unused)),
+				      gint64 start, gint64 end,
+				      gpointer user_data __attribute__((unused)))
+{
+	GtkExperimentTranscript *transcript_wizard =
+			GTK_EXPERIMENT_TRANSCRIPT(transcript_wizard_widget);
+	GtkExperimentTranscript *transcript_proband =
+			GTK_EXPERIMENT_TRANSCRIPT(transcript_proband_widget);
+
+	gtk_experiment_transcript_set_backdrop_area(transcript_wizard,
+						    start, end);
+	gtk_experiment_transcript_set_backdrop_area(transcript_proband,
+						    start, end);
+
+	last_activated_section.start = start;
+	last_activated_section.end = end;
+}
+
+/** @private */
+gboolean
+navigator_widget_generic_focus_event_cb(GtkWidget *widget __attribute__((unused)),
+				        GdkEventFocus *event,
+				        gpointer user_data __attribute__((unused)))
+{
+	GtkExperimentTranscript *transcript_wizard =
+			GTK_EXPERIMENT_TRANSCRIPT(transcript_wizard_widget);
+	GtkExperimentTranscript *transcript_proband =
+			GTK_EXPERIMENT_TRANSCRIPT(transcript_proband_widget);
+
+	gint64 start = -1, end = -1;
+
+	if (event->in) {
+		start = last_activated_section.start;
+		end = last_activated_section.end;
+	}
+
+	gtk_experiment_transcript_set_backdrop_area(transcript_wizard,
+						    start, end);
+	gtk_experiment_transcript_set_backdrop_area(transcript_proband,
+						    start, end);
+
+	return TRUE;
+}
+
 /** @private */
 void
 generic_quit_cb(GtkWidget *widget __attribute__((unused)),
-- 
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