From af1fccb1e2bd7355f4e00d014ccad232240aced7 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Thu, 26 Dec 2019 20:31:35 +0100
Subject: WIP on copy and paste

---
 libstorycode/gtk/gtknarrativeview.c | 61 +++++++++++++++++++++----------------
 libstorycode/narrative.c            | 40 ++++++++++++++++++++++++
 libstorycode/narrative.h            |  2 ++
 3 files changed, 77 insertions(+), 26 deletions(-)

diff --git a/libstorycode/gtk/gtknarrativeview.c b/libstorycode/gtk/gtknarrativeview.c
index b26c86b..df71f1e 100644
--- a/libstorycode/gtk/gtknarrativeview.c
+++ b/libstorycode/gtk/gtknarrativeview.c
@@ -409,15 +409,33 @@ void sc_editor_paste(GtkNarrativeView *e)
 static void clipboard_get(GtkClipboard *cb, GtkSelectionData *seldata,
                           guint info, gpointer data)
 {
-	char *t = data;
+	GtkNarrativeView *e = data;
 
 	printf("clipboard get\n");
 
 	if ( info == 0 ) {
-		printf("sending SC frame\n");
+		char *t;
+		size_t start_offs, end_offs;
+		start_offs = narrative_pos_trail_to_offset(e->n, e->sel_start.para,
+		                                           e->sel_start.pos, e->sel_start.trail);
+		end_offs = narrative_pos_trail_to_offset(e->n, e->sel_end.para,
+		                                           e->sel_end.pos, e->sel_end.trail);
+		t = narrative_range_as_text(e->n, e->sel_start.para, start_offs,
+		                            e->sel_end.para, end_offs);
+		if ( t != NULL ) {
+			printf("got text '%s'\n", t);
+			gtk_selection_data_set_text(seldata, t, -1);
+		} else {
+			fprintf(stderr, "Couldn't format Storycode as text\n");
+		}
+
+	} else if ( info == 1 ) {
+		char *t = strdup(": Text");
+		printf("sending SC\n");
 		gtk_selection_data_set(seldata,
 		                       gtk_selection_data_get_target(seldata),
 		                       8, (const guchar *)t, strlen(t)+1);
+
 	} else {
 		GdkAtom target;
 		gchar *name;
@@ -431,35 +449,26 @@ static void clipboard_get(GtkClipboard *cb, GtkSelectionData *seldata,
 
 static void clipboard_clear(GtkClipboard *cb, gpointer data)
 {
-	free(data);
+	/* Do absolutely nothing */
 }
 
 
 static void copy_selection(GtkNarrativeView *e)
 {
-//	char *t;
-//	GtkClipboard *cb;
-//	GdkAtom atom;
-//	GtkTargetEntry targets[1];
-//
-//	atom = gdk_atom_intern("CLIPBOARD", FALSE);
-//	if ( atom == GDK_NONE ) return;
-//
-//	cb = gtk_clipboard_get(atom);
-//
-//	targets[0].target = "text/x-storycode";
-//	targets[0].flags = 0;
-//	targets[0].info = 0;
-//
-//	printf("copying selection\n");
-//
-//	bl = block_at_cursor(e->cursor_frame, e->cpos.para, 0);
-//	if ( bl == NULL ) return;
-//
-//	t = serialise_sc_block(bl);
-//
-//	gtk_clipboard_set_with_data(cb, targets, 1,
-//	                            clipboard_get, clipboard_clear, t);
+	GtkClipboard *cb;
+	GtkTargetEntry targets[2];
+
+	cb = gtk_clipboard_get_default(gtk_widget_get_display(GTK_WIDGET(e)));
+
+	targets[0].target = "text/plain";
+	targets[0].flags = 0;
+	targets[0].info = 0;
+
+	targets[1].target = "text/x-storycode";
+	targets[1].flags = 0;
+	targets[1].info = 1;
+
+	gtk_clipboard_set_with_owner(cb, targets, 2, clipboard_get, clipboard_clear, G_OBJECT(e));
 }
 
 
diff --git a/libstorycode/narrative.c b/libstorycode/narrative.c
index 67fe9e9..cd4b10e 100644
--- a/libstorycode/narrative.c
+++ b/libstorycode/narrative.c
@@ -589,6 +589,45 @@ Slide *narrative_get_slide_by_number(Narrative *n, int pos)
 }
 
 
+/* Return the text between item p1/offset o1 and p2/o2 */
+char *narrative_range_as_text(Narrative *n, int p1, size_t o1, int p2, size_t o2)
+{
+	int i;
+	char *t;
+	size_t len = 0;
+	size_t size = 256;
+
+	t = malloc(size);
+	if ( t == NULL ) return NULL;
+
+	t[0] = '\0';
+
+	for ( i=p1; i<=p2; i++ ) {
+		int r;
+		if ( !narrative_item_is_text(n, i) ) continue;
+		for ( r=0; r<n->items[i].n_runs; r++ ) {
+			size_t this_len = strlen(n->items[i].runs[r].text);
+			if ( this_len + len + 2 > size ) {
+				char *nt;
+				size += 256 + this_len;
+				nt = realloc(t, size);
+				if ( nt == NULL ) {
+					fprintf(stderr, "Failed to allocate\n");
+					return NULL;
+				}
+				t = nt;
+			}
+			memcpy(&t[len], n->items[i].runs[r].text, this_len+1);
+			len += this_len;
+		}
+		t[len++] = '\n';
+		t[len] = '\0';
+	}
+
+	return t;
+}
+
+
 static void debug_runs(struct narrative_item *item)
 {
 	int j;
@@ -597,6 +636,7 @@ static void debug_runs(struct narrative_item *item)
 	}
 }
 
+
 void narrative_debug(Narrative *n)
 {
 	int i;
diff --git a/libstorycode/narrative.h b/libstorycode/narrative.h
index c5cb6f3..701d409 100644
--- a/libstorycode/narrative.h
+++ b/libstorycode/narrative.h
@@ -73,6 +73,8 @@ extern Slide *narrative_get_slide_by_number(Narrative *n, int pos);
 extern int narrative_get_slide_number_for_para(Narrative *n, int para);
 extern int narrative_get_slide_number_for_slide(Narrative *n, Slide *s);
 
+extern char *narrative_range_as_text(Narrative *n, int p1, size_t o1, int p2, size_t o2);
+
 extern void narrative_debug(Narrative *n);
 
 #endif /* NARRATIVE_H */
-- 
cgit v1.2.3