implemented "format" file and expression parsing as well as application to the transcript

 * "formats" are regular expressions encapsulated in Pango markup that allow the description of powerful highlighting rules
 * highlight as you type via entry boxes
 * loading from files implemented and tested but cannot yet be done via the UI
 * transcript widget is built as libtool convenience library
 * some renamings were necessary
 * install transcript widget header

1 files changed, 90 insertions, 0 deletions

diff --git a/lib/gtk-experiment-widgets/gtk-experiment-transcript-private.h b/lib/gtk-experiment-widgets/gtk-experiment-transcript-private.h
new file mode 100644
index 0000000..8dc47c1
--- /dev/null
+++ b/lib/gtk-experiment-widgets/gtk-experiment-transcript-private.h
@@ -0,0 +1,90 @@
+/**
+ * @file
+ * Private header for the \e GtkExperimentTranscript widget
+ */
+
+#ifndef __GTK_EXPERIMENT_TRANSCRIPT_PRIVATE_H
+#define __GTK_EXPERIMENT_TRANSCRIPT_PRIVATE_H
+
+#include "gtk-experiment-transcript.h"
+
+/** @private */
+#define GTK_EXPERIMENT_TRANSCRIPT_GET_PRIVATE(obj) \
+	(G_TYPE_INSTANCE_GET_PRIVATE((obj), GTK_TYPE_EXPERIMENT_TRANSCRIPT, GtkExperimentTranscriptPrivate))
+
+/** @private */
+typedef struct _GtkExperimentTranscriptFormat {
+	GRegex		*regexp;
+	PangoAttrList	*attribs;
+} GtkExperimentTranscriptFormat;
+
+/**
+ * @private
+ * Private instance attribute structure.
+ * You can access these attributes using \c klass->priv->attribute.
+ */
+struct _GtkExperimentTranscriptPrivate {
+	GtkObject	*time_adjustment;
+	gulong		time_adj_on_value_changed_id;
+
+	GdkPixmap	*layer_text;
+	PangoLayout	*layer_text_layout;
+
+	GList		*contribs;
+	GSList		*formats;
+	GtkExperimentTranscriptFormat interactive_format;
+
+	GtkWidget	*menu;		/**< Drop-down menu, doesn't have to be unreferenced manually */
+};
+
+#define DEFAULT_WIDTH		100
+#define DEFAULT_HEIGHT		200
+
+#define LAYER_TEXT_INVISIBLE	100
+
+/** @todo scale should be configurable */
+#define PX_PER_SECOND		15
+#define TIME_TO_PX(TIME)	((TIME)/(1000/PX_PER_SECOND))
+#define PX_TO_TIME(PX)		(((PX)*1000)/PX_PER_SECOND)
+
+/**
+ * @private
+ * Unreference object given by variable, but only once.
+ * Use it in \ref gtk_experiment_transcript_dispose to unreference object
+ * references in public or private instance attributes.
+ *
+ * @sa gtk_experiment_transcript_dispose
+ *
+ * @param VAR Variable to unreference
+ */
+#define GOBJECT_UNREF_SAFE(VAR) do {	\
+	if ((VAR) != NULL) {		\
+		g_object_unref(VAR);	\
+		VAR = NULL;		\
+	}				\
+} while (0)
+
+/** @private */
+void gtk_experiment_transcript_text_layer_redraw(GtkExperimentTranscript *trans);
+
+/** @private */
+void gtk_experiment_transcript_apply_format(GtkExperimentTranscriptFormat *fmt,
+					    const gchar *text,
+					    PangoAttrList *attrib_list);
+
+/** @private */
+static inline void
+gtk_experiment_transcript_free_format(GtkExperimentTranscriptFormat *format)
+{
+	if (format->regexp != NULL)
+		g_regex_unref(format->regexp);
+	if (format->attribs != NULL)
+		pango_attr_list_unref(format->attribs);
+}
+
+/** @private */
+void gtk_experiment_transcript_free_formats(GSList *formats);
+
+
+
+#endif