From a82f00098daf0bd6caa5ab7ae8b376cb623d45ca Mon Sep 17 00:00:00 2001
From: Thomas White <taw@bitwiz.me.uk>
Date: Tue, 30 Oct 2018 22:32:08 +0100
Subject: Propagate stylesheet changes to slide windows

---
 src/narrative_window.c | 43 +++++++++++++++++++++++++++++++++++++++++--
 src/narrative_window.h |  4 ++++
 src/presentation.h     |  1 -
 src/slide_window.c     |  9 +++++++--
 src/slide_window.h     |  2 ++
 5 files changed, 54 insertions(+), 5 deletions(-)

diff --git a/src/narrative_window.c b/src/narrative_window.c
index e2365f8..246dc1a 100644
--- a/src/narrative_window.c
+++ b/src/narrative_window.c
@@ -57,6 +57,8 @@ struct _narrative_window
 	SCSlideshow         *show;
 	int                  show_no_slides;
 	PRClock             *pr_clock;
+	SlideWindow         *slidewindows[16];
+	int                  n_slidewindows;
 };
 
 
@@ -277,11 +279,18 @@ static gint load_ss_response_sig(GtkWidget *d, gint response,
 
 static void stylesheet_changed_sig(GtkWidget *da, NarrativeWindow *nw)
 {
+	int i;
+
 	/* It might have changed (been created) since last time */
 	sc_editor_set_stylesheet(nw->sceditor, nw->p->stylesheet);
 
 	/* Full rerender, first block may have changed */
 	sc_editor_set_scblock(nw->sceditor, nw->dummy_top);
+
+	/* Full rerender of all slide windows */
+	for ( i=0; i<nw->n_slidewindows; i++ ) {
+		slide_window_update(nw->slidewindows[i]);
+	}
 }
 
 
@@ -691,11 +700,17 @@ static int click_thumbnail(double x, double y, void *bvp, void *vp)
 {
 	struct presentation *p = vp;
 	SCBlock *scblocks = bvp;
+	NarrativeWindow *nw = p->narrative_window;
 
 	if ( p->narrative_window->show != NULL ) {
-		sc_slideshow_set_slide(p->narrative_window->show, scblocks);
+		sc_slideshow_set_slide(nw->show, scblocks);
 	} else {
-		slide_window_open(p, scblocks, p->narrative_window->app);
+		if ( nw->n_slidewindows >= 16 ) {
+			show_error(nw, _("Too many open slide windows"));
+		} else {
+			nw->slidewindows[nw->n_slidewindows++] = slide_window_open(p, scblocks,
+			                                                           p->narrative_window->app);
+		}
 	}
 
 	return 0;
@@ -751,6 +766,29 @@ void update_titlebar(NarrativeWindow *nw)
 }
 
 
+void narrative_window_sw_closed(NarrativeWindow *nw, SlideWindow *sw)
+{
+	int i;
+	int found = 0;
+
+	for ( i=0; i<nw->n_slidewindows; i++ ) {
+		if ( nw->slidewindows[i] == sw ) {
+
+			int j;
+			for ( j=i; j<nw->n_slidewindows-1; j++ ) {
+				nw->slidewindows[j] = nw->slidewindows[j+1];
+			}
+			nw->n_slidewindows--;
+			found = 1;
+		}
+	}
+
+	if ( !found ) {
+		fprintf(stderr, "Couldn't find slide window in narrative record\n");
+	}
+}
+
+
 NarrativeWindow *narrative_window_new(struct presentation *p, GApplication *papp)
 {
 	NarrativeWindow *nw;
@@ -772,6 +810,7 @@ NarrativeWindow *narrative_window_new(struct presentation *p, GApplication *papp
 
 	nw->app = papp;
 	nw->p = p;
+	nw->n_slidewindows = 0;
 
 	nw->window = gtk_application_window_new(GTK_APPLICATION(app));
 	p->narrative_window = nw;
diff --git a/src/narrative_window.h b/src/narrative_window.h
index f9f435c..24b4a4b 100644
--- a/src/narrative_window.h
+++ b/src/narrative_window.h
@@ -30,9 +30,13 @@
 
 typedef struct _narrative_window NarrativeWindow;
 
+#include "slide_window.h"
+
 extern NarrativeWindow *narrative_window_new(struct presentation *p,
                                              GApplication *app);
 
 extern void update_titlebar(NarrativeWindow *nw);
 
+extern void narrative_window_sw_closed(NarrativeWindow *nw, SlideWindow *sw);
+
 #endif	/* NARRATIVE_WINDOW_H */
diff --git a/src/presentation.h b/src/presentation.h
index a3e10cc..b288d8e 100644
--- a/src/presentation.h
+++ b/src/presentation.h
@@ -49,7 +49,6 @@ struct presentation
 	ImageStore       *is;
 
 	NarrativeWindow  *narrative_window;
-	SlideWindow      *slidewindow;
 
 	struct pr_clock  *clock;
 
diff --git a/src/slide_window.c b/src/slide_window.c
index 0f27b10..ed37a50 100644
--- a/src/slide_window.c
+++ b/src/slide_window.c
@@ -96,11 +96,16 @@ static void delete_frame_sig(GSimpleAction *action, GVariant *parameter,
 }
 
 
+void slide_window_update(SlideWindow *sw)
+{
+	sc_editor_set_scblock(sw->sceditor, sw->scblocks);
+}
+
+
 /* Change the editor's slide to "np" */
 static void change_edit_slide(SlideWindow *sw, SCBlock *np)
 {
 	sc_editor_set_slidenum(sw->sceditor, slide_number(sw->p, np));
-
 	sc_editor_set_scblock(sw->sceditor, np);
 	sw->scblocks = np;
 }
@@ -170,7 +175,7 @@ static void last_slide_sig(GSimpleAction *action, GVariant *parameter,
 
 static gboolean sw_close_sig(GtkWidget *w, SlideWindow *sw)
 {
-	sw->p->slidewindow = NULL;
+	narrative_window_sw_closed(sw->p->narrative_window, sw);
 	return FALSE;
 }
 
diff --git a/src/slide_window.h b/src/slide_window.h
index b1d39a8..681ec39 100644
--- a/src/slide_window.h
+++ b/src/slide_window.h
@@ -32,4 +32,6 @@ typedef struct _slidewindow SlideWindow;
 extern SlideWindow *slide_window_open(struct presentation *p, SCBlock *scblocks,
                                       GApplication *app);
 
+extern void slide_window_update(SlideWindow *sw);
+
 #endif	/* SLIDEWINDOW_H */
-- 
cgit v1.2.3