From 02828602d6f2f1ec2a7e718dea8d4bedc9dc300d Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Thu, 4 Jan 2018 22:35:55 +0100
Subject: Copy and paste entire frames

---
 src/colloquium.c   |  4 ++++
 src/sc_editor.c    | 42 ++++++++++++++++++++++++++++++++++++++++++
 src/sc_editor.h    |  2 ++
 src/sc_parse.c     | 12 ++++++++++++
 src/sc_parse.h     |  2 ++
 src/slide_window.c | 19 +++++++++++++++++++
 6 files changed, 81 insertions(+)

(limited to 'src')

diff --git a/src/colloquium.c b/src/colloquium.c
index c89d61e..001786c 100644
--- a/src/colloquium.c
+++ b/src/colloquium.c
@@ -321,6 +321,10 @@ static void colloquium_startup(GApplication *papp)
 	    "          <attribute name='action'>win.deleteframe</attribute>"
 	    "        </item>"
 	    "        <item>"
+	    "          <attribute name='label'>Copy Frame</attribute>"
+	    "          <attribute name='action'>win.copyframe</attribute>"
+	    "        </item>"
+	    "        <item>"
 	    "          <attribute name='label'>Delete slide</attribute>"
 	    "          <attribute name='action'>win.deleteslide</attribute>"
 	    "        </item>"
diff --git a/src/sc_editor.c b/src/sc_editor.c
index c94dcba..fa86706 100644
--- a/src/sc_editor.c
+++ b/src/sc_editor.c
@@ -431,6 +431,48 @@ void sc_editor_redraw(SCEditor *e)
 }
 
 
+void paste_received(GtkClipboard *cb, const gchar *t, gpointer vp)
+{
+	SCEditor *e = vp;
+	SCBlock *nf;
+	nf = sc_parse(t);
+	sc_block_append_block(e->scblocks, nf);
+	full_rerender(e);
+}
+
+
+void sc_editor_paste(SCEditor *e)
+{
+	GtkClipboard *cb;
+	GdkAtom atom;
+
+	atom = gdk_atom_intern("CLIPBOARD", FALSE);
+	if ( atom == GDK_NONE ) return;
+	cb = gtk_clipboard_get(atom);
+	gtk_clipboard_request_text(cb, paste_received, e);
+}
+
+
+void sc_editor_copy_selected_frame(SCEditor *e)
+{
+	char *t;
+	GtkClipboard *cb;
+	GdkAtom atom;
+
+	if ( e->selection == NULL ) return;
+
+	atom = gdk_atom_intern("CLIPBOARD", FALSE);
+	if ( atom == GDK_NONE ) return;
+
+	cb = gtk_clipboard_get(atom);
+
+	t = serialise_sc_block(e->selection->scblocks);
+
+	gtk_clipboard_set_text(cb, t, -1);
+	free(t);
+}
+
+
 void sc_editor_delete_selected_frame(SCEditor *e)
 {
 	sc_block_delete(&e->scblocks, e->selection->scblocks);
diff --git a/src/sc_editor.h b/src/sc_editor.h
index b2fd6a5..9996834 100644
--- a/src/sc_editor.h
+++ b/src/sc_editor.h
@@ -186,6 +186,8 @@ extern void sc_editor_set_min_border(SCEditor *e, double min_border);
 extern void sc_editor_set_top_frame_editable(SCEditor *e,
                                              int top_frame_editable);
 extern void sc_editor_set_callbacks(SCEditor *e, SCCallbackList *cbl);
+extern void sc_editor_paste(SCEditor *e);
+extern void sc_editor_copy_selected_frame(SCEditor *e);
 extern void sc_editor_delete_selected_frame(SCEditor *e);
 extern void sc_editor_remove_cursor(SCEditor *e);
 extern SCBlock *split_paragraph_at_cursor(SCEditor *e);
diff --git a/src/sc_parse.c b/src/sc_parse.c
index 3853800..a8b2c09 100644
--- a/src/sc_parse.c
+++ b/src/sc_parse.c
@@ -140,6 +140,18 @@ SCBlock *sc_block_append_end(SCBlock *bl, char *name, char *opt, char *contents)
 }
 
 
+void sc_block_append_block(SCBlock *bl, SCBlock *bln)
+{
+
+	if ( bl == NULL ) return;
+
+	while ( bl->next != NULL ) bl = bl->next;
+
+	bl->next = bln;
+	bln->next = NULL;
+}
+
+
 /* Append a new block to the chain inside "parent".
  * "name", "options" and "contents" will not be copied.  Returns the block just
  * created, or NULL on error. */
diff --git a/src/sc_parse.h b/src/sc_parse.h
index 41a1112..6f8cb51 100644
--- a/src/sc_parse.h
+++ b/src/sc_parse.h
@@ -50,6 +50,8 @@ extern SCBlock *sc_block_append(SCBlock *bl,
 
 extern void sc_block_append_p(SCBlock *bl, SCBlock *bln);
 
+extern void sc_block_append_block(SCBlock *bl, SCBlock *bln);
+
 extern SCBlock *sc_block_append_end(SCBlock *bl,
                                     char *name, char *opt, char *contents);
 
diff --git a/src/slide_window.c b/src/slide_window.c
index 21df394..ae89062 100644
--- a/src/slide_window.c
+++ b/src/slide_window.c
@@ -75,6 +75,23 @@ struct menu_pl
 };
 
 
+static void paste_sig(GSimpleAction *action, GVariant *parameter,
+                      gpointer vp)
+{
+	SlideWindow *sw = vp;
+	sc_editor_paste(sw->sceditor);
+}
+
+
+
+static void copy_frame_sig(GSimpleAction *action, GVariant *parameter,
+                             gpointer vp)
+{
+	SlideWindow *sw = vp;
+	sc_editor_copy_selected_frame(sw->sceditor);
+}
+
+
 static void delete_frame_sig(GSimpleAction *action, GVariant *parameter,
                              gpointer vp)
 {
@@ -195,6 +212,8 @@ static gboolean key_press_sig(GtkWidget *da, GdkEventKey *event,
 
 GActionEntry sw_entries[] = {
 
+	{ "paste", paste_sig, NULL, NULL, NULL },
+	{ "copyframe", copy_frame_sig, NULL, NULL, NULL },
 	{ "deleteframe", delete_frame_sig, NULL, NULL, NULL },
 	{ "first", first_slide_sig, NULL, NULL, NULL },
 	{ "prev", prev_slide_sig, NULL, NULL, NULL },
-- 
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