From 74151d515a28debfa24fc50cbcb575f800e1314f Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Sun, 3 Dec 2017 22:40:49 +0100
Subject: Type "into" slide thumbnail without full rerender

---
 src/frame.c     |  6 ++++--
 src/frame.h     |  2 ++
 src/sc_editor.c | 22 +++++++++++++++++++---
 3 files changed, 25 insertions(+), 5 deletions(-)

(limited to 'src')

diff --git a/src/frame.c b/src/frame.c
index 89268a6..d5ec137 100644
--- a/src/frame.c
+++ b/src/frame.c
@@ -429,7 +429,7 @@ static Paragraph *create_paragraph(struct frame *fr)
 
 
 /* Create a new paragraph in 'fr' just after paragraph 'pos' */
-static Paragraph *insert_paragraph(struct frame *fr, int pos)
+Paragraph *insert_paragraph(struct frame *fr, int pos)
 {
 	Paragraph **paras_new;
 	Paragraph *pnew;
@@ -446,8 +446,10 @@ static Paragraph *insert_paragraph(struct frame *fr, int pos)
 	pnew = calloc(1, sizeof(struct _paragraph));
 	if ( pnew == NULL ) return NULL;
 
+	pnew->open = 1;
+
 	fr->paras = paras_new;
-	fr->n_paras ++;
+	fr->n_paras++;
 
 	for ( i=fr->n_paras-1; i>pos; i-- ) {
 		fr->paras[i] = fr->paras[i-1];
diff --git a/src/frame.h b/src/frame.h
index 4c9265a..ac91548 100644
--- a/src/frame.h
+++ b/src/frame.h
@@ -139,6 +139,8 @@ extern void add_run(Paragraph *para, SCBlock *scblock, SCBlock *macro_real,
                     size_t offs_bytes, size_t len_bytes,
                     PangoFontDescription *fdesc, double col[4]);
 
+extern Paragraph *insert_paragraph(struct frame *fr, int pos);
+
 extern void add_callback_para(struct frame *fr, SCBlock *scblock, SCBlock *mr,
                               double w, double h,
                               SCCallbackDrawFunc draw_func,
diff --git a/src/sc_editor.c b/src/sc_editor.c
index 53b004b..1dee4b4 100644
--- a/src/sc_editor.c
+++ b/src/sc_editor.c
@@ -783,6 +783,7 @@ static void insert_text(char *t, SCEditor *e)
 	} else {
 
 		SCBlock *ad;
+		Paragraph *pnew;
 
 		/* FIXME: We should not assume that box void pointers correspond
 		 * to "real" scblocks for callback paragraphs.  Not in this
@@ -794,10 +795,25 @@ static void insert_text(char *t, SCEditor *e)
 		}
 
 		/* No. Create a new text paragraph straight afterwards */
-		sc_block_insert_after(ad, NULL, NULL, strdup(t));
-		full_rerender(e);
+		ad = sc_block_insert_after(ad, NULL, NULL, strdup(t));
+		if ( ad == NULL ) {
+			fprintf(stderr, "Failed to add SCBlock\n");
+			return;
+		}
 
-		/* FIXME: Find the cursor again */
+		pnew = insert_paragraph(e->cursor_frame, e->cursor_para);
+		if ( pnew == NULL ) {
+			fprintf(stderr, "Failed to insert paragraph\n");
+			return;
+		}
+		add_run(pnew, ad, NULL, 0, strlen(t),
+		        e->cursor_frame->fontdesc, e->cursor_frame->col);
+
+		wrap_frame(e->top, e->pc);
+
+		e->cursor_para += 1;
+		e->cursor_pos = 0;
+		e->cursor_trail = 1;
 
 	}
 
-- 
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