From f66f6a1be2370ed3d57c33100a4c3380379e166c Mon Sep 17 00:00:00 2001
From: Johannes Hofmann <Johannes.Hofmann@gmx.de>
Date: Wed, 18 Jul 2007 22:20:24 +0200
Subject: clear offscreen before loading new file

---
 src/GsWidget.H   |  1 +
 src/GsWidget.cxx | 35 +++++++++++++++++++++--------------
 2 files changed, 22 insertions(+), 14 deletions(-)

diff --git a/src/GsWidget.H b/src/GsWidget.H
index a5d0fd1..e6f7390 100644
--- a/src/GsWidget.H
+++ b/src/GsWidget.H
@@ -32,6 +32,7 @@ class GsWidget : public Fl_Widget {
 		int feeding;
 	
 		void resize();
+		void clear();
 
 	protected:
 		int page;
diff --git a/src/GsWidget.cxx b/src/GsWidget.cxx
index ad516b7..229047b 100644
--- a/src/GsWidget.cxx
+++ b/src/GsWidget.cxx
@@ -117,8 +117,10 @@ int GsWidget::open_file(char *f) {
 }
 
 int GsWidget::open_file(int fd) {
+	clear();
+
 	if (in_fd >= 0 && fd != in_fd) {
-		close (in_fd);
+		close(in_fd);
 	}
 	in_fd = fd;
 
@@ -383,19 +385,7 @@ int GsWidget::get_page() {
 int GsWidget::zoom(int p) {
 	zoom_percent = p;
 
-	kill_gs();
-
-	if (offscreen) {
-		// Clear widget with current size
-		fl_begin_offscreen(offscreen);
-		fl_color(FL_WHITE);
-		fl_rectf(0, 0, w(), h());
-		fl_end_offscreen();
-		redraw();
-
-		fl_delete_offscreen(offscreen);
-		offscreen = 0;
-	}
+	clear();
 
 	xdpi = 75 * zoom_percent / 100;
 	ydpi = 75 * zoom_percent / 100;
@@ -420,3 +410,20 @@ void
 GsWidget::resize() {
 	size(paper_x * xdpi / 72, paper_y * ydpi / 72);
 }
+
+void
+GsWidget::clear() {
+	kill_gs();
+
+	if (offscreen) {
+		// Clear widget with current size
+		fl_begin_offscreen(offscreen);
+		fl_color(FL_WHITE);
+		fl_rectf(0, 0, w(), h());
+		fl_end_offscreen();
+		redraw();
+
+		fl_delete_offscreen(offscreen);
+		offscreen = 0;
+	}
+}
-- 
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