Cut/copy in text format

3 files changed, 147 insertions, 29 deletions

diff --git a/libstorycode/gtk/gtknarrativeview.c b/libstorycode/gtk/gtknarrativeview.c
index b26c86b..409b48b 100644
--- a/libstorycode/gtk/gtknarrativeview.c
+++ b/libstorycode/gtk/gtknarrativeview.c
@@ -409,15 +409,18 @@ void sc_editor_paste(GtkNarrativeView *e)
 static void clipboard_get(GtkClipboard *cb, GtkSelectionData *seldata,
                           guint info, gpointer data)
 {
-	char *t = data;
+	char **clipboard_data = data;
 
 	printf("clipboard get\n");
 
 	if ( info == 0 ) {
-		printf("sending SC frame\n");
-		gtk_selection_data_set(seldata,
-		                       gtk_selection_data_get_target(seldata),
-		                       8, (const guchar *)t, strlen(t)+1);
+		printf("sending text\n");
+		gtk_selection_data_set_text(seldata, clipboard_data[0], -1);
+
+	} else if ( info == 1 ) {
+		printf("sending SC\n");
+		gtk_selection_data_set_text(seldata, clipboard_data[1], -1);
+
 	} else {
 		GdkAtom target;
 		gchar *name;
@@ -431,35 +434,52 @@ static void clipboard_get(GtkClipboard *cb, GtkSelectionData *seldata,
 
 static void clipboard_clear(GtkClipboard *cb, gpointer data)
 {
-	free(data);
+	char **clipboard_data = data;
+	printf("freeing clipboard data\n");
+	free(clipboard_data[0]);
+	free(clipboard_data[1]);
+	free(clipboard_data);
 }
 
 
 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];
+	char **clipboard_data;
+	size_t start_offs, end_offs;
+
+	clipboard_data = malloc(2*sizeof(char *));
+	if ( clipboard_data == NULL ) return;
+
+	cb = gtk_clipboard_get_default(gtk_widget_get_display(GTK_WIDGET(e)));
+
+	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);
+
+	targets[0].target = "text/plain";
+	targets[0].flags = 0;
+	targets[0].info = 0;
+	clipboard_data[0] = narrative_range_as_text(e->n, e->sel_start.para, start_offs,
+	                                                  e->sel_end.para, end_offs);
+
+	targets[1].target = "text/x-storycode";
+	targets[1].flags = 0;
+	targets[1].info = 1;
+	clipboard_data[1] = narrative_range_as_storycode(e->n, e->sel_start.para, start_offs,
+	                                                       e->sel_end.para, end_offs);
+
+	/* Data is prepared for all the possible MIME types right now, not later
+	 * when the data is represented.  This avoids having to convert
+	 * everything to a new, intermediate format, or saving a copy of the
+	 * entire GtkNarrativeView's state (which might change before the data
+	 * gets requested.
+	 * Perhaps I missed something and there is an easier way.
+	 */
+	gtk_clipboard_set_with_data(cb, targets, 2, clipboard_get, clipboard_clear,
+	                            clipboard_data);
 }
 
 
@@ -1120,6 +1140,14 @@ static gboolean gtknv_key_press_sig(GtkWidget *da, GdkEventKey *event,
 		}
 		break;
 
+		case GDK_KEY_X :
+		case GDK_KEY_x :
+		if ( event->state == GDK_CONTROL_MASK ) {
+			copy_selection(e);
+			gtknv_do_backspace(e, 0);
+		}
+		break;
+
 		case GDK_KEY_V :
 		case GDK_KEY_v :
 		if ( event->state == GDK_CONTROL_MASK ) {
diff --git a/libstorycode/narrative.c b/libstorycode/narrative.c
index 67fe9e9..5dc3f7f 100644
--- a/libstorycode/narrative.c
+++ b/libstorycode/narrative.c
@@ -589,6 +589,92 @@ 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_storycode(Narrative *n, int p1, size_t o1, int p2, size_t o2)
+{
+	return strdup(": Text");
+}
+
+
+/* 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;
+	int r1, r2;
+	size_t r1offs, r2offs;
+	size_t len = 0;
+	size_t size = 256;
+
+	t = malloc(size);
+	if ( t == NULL ) return NULL;
+	t[0] = '\0';
+
+	r1 = narrative_which_run(&n->items[p1], o1, &r1offs);
+	r2 = narrative_which_run(&n->items[p2], o2, &r2offs);
+
+	for ( i=p1; i<=p2; i++ ) {
+
+		int r;
+
+		/* Skip non-text runs straight away */
+		if ( !narrative_item_is_text(n, i) ) continue;
+
+		for ( r=0; r<n->items[i].n_runs; r++ ) {
+
+			size_t run_text_len, len_to_add, start_run_offs;
+
+			/* Is this run within the range? */
+			if ( (i==p1) && (r<r1) ) continue;
+			if ( (i==p2) && (r>r2) ) continue;
+
+			run_text_len = strlen(n->items[i].runs[r].text);
+
+			if ( (p1==p2) && (r1==r2) && (r==r1) ) {
+				start_run_offs = r1offs;
+				len_to_add = r2offs - r1offs;
+			} else if ( (i==p1) && (r==r1) ) {
+				start_run_offs = r1offs;
+				len_to_add = run_text_len - r1offs;
+			} else if ( (i==p2) && (r==r2) ) {
+				start_run_offs = 0;
+				len_to_add = r2offs;
+			} else {
+				start_run_offs = 0;
+				len_to_add = run_text_len;
+			}
+
+			if ( len_to_add == 0 ) continue;
+
+			/* Ensure space */
+			if ( len + len_to_add + 2 > size ) {
+				char *nt;
+				size += 256 + len_to_add;
+				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+start_run_offs,
+			       len_to_add);
+			len += len_to_add;
+			t[len] = '\0';
+		}
+
+		if ( i < p2 ) {
+			t[len++] = '\n';
+			t[len] = '\0';
+		}
+
+	}
+
+	return t;
+}
+
+
 static void debug_runs(struct narrative_item *item)
 {
 	int j;
@@ -597,6 +683,7 @@ 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..599318e 100644
--- a/libstorycode/narrative.h
+++ b/libstorycode/narrative.h
@@ -73,6 +73,9 @@ 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 char *narrative_range_as_storycode(Narrative *n, int p1, size_t o1, int p2, size_t o2);
+
 extern void narrative_debug(Narrative *n);
 
 #endif /* NARRATIVE_H */